Hydrogen Sulfide in Aqueous Solvents 79
COHPONENTS:1. Hydrogen sulfide; H2S; [7783-06-4]
2. Carbon dioxide; C02; [124-38-9]
3. Water; H20; [7732-18-5]
4. Alkanolamines
EVALUATOR:Peter G. T. Fogg',Department of Applied Chemistryand Life Sciences,Polytechnic of North London,Holloway, London N7 8DB, U.K.
February 1987
CRITICAL EVALUATION:
Systems containing hydrogen sulfide, water and alkanolamines have beenextensively studied during the recent years because aqueous solutions ofalkanolamines are widely used to remove hydrogen sulfide from industrial gasmixtures. Much of this work has been carried out by Mather and his co-workers.Several models of the behaviour of alkanolamine/water systems in the presence ofhydrogen sulfide and/or carbon dioxide have been published (1-10). Some sets ofmeasurements (10-14) have been partially correlated with the model developed byKent and Eisenberg (8). Improved models have been published by Deshmukh andMather (9), and by Dingman et al. (10). Predictions based upon models arestill subject to some uncertainty.
Three component systems containing hydrogen sulfide, water and alkanolamines.
In all hydrogen sulfide/alkanolamine/water systems which have been investigatedthe mole ratio of hydrogen sulfide to alkanolamine increases with partialpressure of hydrogen sulfide and decreases with increase in temperature andconcentration of alkanolamine.
2-Aminoethanol (monoethanolamine); C2H7NO; [141-43-5]
Data published by eight groups (1, 15-21) have been compiled. Themeasurements were made over a range of concentrations of MEA (monoethanolamine)from 0.6 to 5 mol dm- 3 , pressures of hydrogen sulfide from 7 x 10- 7to 42 bar and temperatures from 288 to 413 K. The different sets ofmeasurements tend to complement each other and, where there is overlap, there islittle evidence of inconsistency between one set and another. Lawson and Garst(20) have shown that their data for absorption in 15 wt% solution of MEA (2.5mol dm- 3
) is in good agreement under most conditions with unpublished datacommunicated to them by J.P. Bocard and with that published by Muhlbauer andMonaghan (17), Leibush and Shneerson (16), and, Jones et a1. (18). Howeverthey have shown that there is disagreement with the measurements by Muhlbauerand Monaghan at 373 K and pressures below 0.12 bar and with measurements byLeibush and Shneerson at 323 K at partial pressures below 0.0014 bar. Theevaluator has noted a discrepancy between the two measurements in each of thefollowing pairs of measurements:
Authors
Riegger et a1. (15)Lee et a1. (19)
Jones et a1. (18)Lawson & Garst (20)
Lawson & Garst (20)Isaacs et a1. (21)
Concentration of MEA T/K PH 2S Mole ratio/ mol dm- 3 /bar H2S / MEA
5 318.15 0.033 0.4535 313.15 0.042 0.435
2.4 (15.3 wt%) 373.15 0.0089 0.0662.4 (15.2 wt%) 373.15 0.0075 0.0793
2.4 (15.2% ) 373.15 0.00041 0.01432.5 373.15 0.00031 0.0210
In the case of the last pair of measurements the difference is too great to bedue solely to the slight difference in concentrations of MEA.
2,2'-Iminobisethanol (diethano1amine); C4HllN02; [111-42-2]
Five sets of measurements on this system have been compiled (1, 11, 16,20, 22). Data reported by Bottoms (23) were in graphical form and have not beencompiled. Concentrations of DEA (diethanolamine) range from 0.5 to 5 mol dm- 3
,
temperatures from 288 to 422 K and partial pressures of hydrogen sulfide from1.5 x 10- 5 bar to 37 bar. The general pattern of data is very similar tothat for the monoethanolamine system. Different sets of measurements tend tocomplement each other and there is usually good agreement when measurementsoverlap. Lawson and Garst (20) have compared their measurements of solubilities
80 Hydrogen Sulfide in Aqueous Solvents
COHPONENTS:1. Hydrogen sulfide; H2S; [7783-06-4]
2. Carbon dioxide; C02; [124-38-9]
3. water; H20; [7732-18-5]
4. Alkanolamines
CRITICAL EVALUATION:
EVALUATOR:Peter G.T. Fogg,Department of Applied Chemistryand Life Sciences,Polytechnic of North London,Holloway, London N7 8DB, U.K.
February 1987
in a 25 wt% solution of DEA and demonstrated that they are consistent with datafor 298 K to 333 K given by Atwood et a1. (1), Lee et a1. (31) and alsohitherto unpublished data in a private communication from J.P. Bocard. Lal eta1. (11) have shown that their measurements of solubilities in DEA solution ofconcentration 2.0 mol dm- a at 313 K are compatible with those of Lawsonand Garst in a solution of concentration 2.45 mol dm- a at 311 K. Thecompiler has noted the following discrepancy between other published data:
Authors
Atwood et a1. (1)Lee et a1. (22)
Concentration of DEA
/ mol dm- a
4.9 (50 wt%)5.0
322 0.0476323.15 0.0432
Mole ratio
H2S / MEA
0.1530.205
2-(2-Aminoethoxy)ethanol (dig1yco1amine); C4HllN02; [929-06-6]
Martin et a1. (24) have reported measurements of the absorption ofhydrogen sulfide by 60 wt% aqueous solutions of diglycolamine at temperaturesfrom 323 to 373 K and partial pressures of 0.04 to 17.3 bar. Dingman et a1.(10) have reported measurements by 65 wt% solutions at temperatures from 311 to355 K and partial pressures from 3 x 10- 5 to 1.8 bar. The two sets ofmeasurements are consistent with each other in the pressure range over whichmeasurements overlap i.e. 0.04 to 1.8 bar. There is some scatter ofmeasurements at very low pressures close to the minimum pressure.
1,1 '-Iminobis-2-propanol (diisopropano1amine); C6H15N02; [110-97-4]
Absorption in aqueous solutions of diisopropanolamine of concentration2.5 mol dm- a at 313 and 373 K and pressures from 0.02 to 32 bar wasmeasured by Isaacs et a1. (25). No other measurements on this system areavailable for comparison but there is no reason to doubt the reliability of thisset of measurements. These authors have also measured absorption in solutionscontaining tetrahydrothiophene, 1,1-dioxide (su1fo1ane) (26) in addition todiisopropanolamine. These measurements also appear to be reliable but again noother sets of measurements are available for comparison.
2,2'-(Methylimino)bisethanol (methy1diethano1amine); C5HlaN02; [105-59-9]
Jou et a1. (12) measured absorption in solutions of methyldiethanolamineat concentrations from 1.0 to 4.3 mol dm- a at 298 to 393 K and2.1 x 10- 5 to 19.6 bar. A consistent set of data was obtained and thereis no reason to doubt the reliability of these measurements. No othermeasurements are available for comparison.
2,2' ,2"-Nitrilotrisethanol (triethanolamine); C6H15NOa; [102-71-6]
Atwood et a1. (1) measured absorption of hydrogen sulfide by 1 to3.5 mol dm- a (15 to 50 wt%) aqueous solutions of TEA (triethanolamine) attemperatures from 300 to 333 K and pressures from 4 x 10-6 to 0.92 bar.Jou et a1. (13) measured absorption by solutions containing from 2 to5 mol dm- a of TEA at temperatures from 298 to 398 K and partial pressuresfrom 1.2 x 10- 4 to 62.7 bar. In the range of conditions in which themeasurements overlap there is a good correlation between the two sets ofmeasurements except for the following discrepancy:
Hydrogen Sulfide in Aqueous Solvents 81
COHPONENTS:1. Hydrogen sulfide; H2S; [7783-06-4]
2. Carbon dioxide; CO 2 ; [124-38-9]
3. Water; H20; [7732-18-5]
4. Alkanolamines
CRITICAL EVALUATION:
EVALUATOR:
Peter G.T. Fogg~
Department of Applied Chemistryand Life Sciences,Polytechnic of North London,Holloway,London N7 8DB, U.K.
February 1987
Authors
Atwood et a1. (1)Jou et a1. (13)
Concentration of TEA T/K
I mol dm- 3
2 (30 wt%) 310.92 323.2
0.0007570.000683
Mole ratio
H2S I MEA
0.01240.0133
~ component systems of hydrogen sulfide, carbon dioxide, water andalkanolamine.
These systems were briefly investigated by Leibush & Schneerson (16). Thefirst detailed study was by Muhlbauer & Monaghan in 1957 (17). In each systemthere is the possibility of varying the partial pressure of each gas, thetemperature and the concentration of alkanolamine. Measurements by differentworkers tend to complement each other with different groups having measuredabsorption under different sets of conditions. Direct comparison of one set ofmeasurements with another is, in many cases, not possible. In all cases themole ratio in solution of hydrogen sulfide to alkanolamine increases withpartial pressure of hydrogen sulfide. It decreases with increase in temperatureand concentration of alkanolamine and also with partial pressure of carbondioxide. In the same way the mole ratio of carbon dioxide to alkanolamineincreases with partial pressure of carbon dioxide and decreases with increase intemperature, concentration of alkanolamine and partial pressure of hydrogensulfide.
2-Aminoethanol (monoethano1amine); C2H7NO; [141-43-5]
Authors Range of measurements
Cone. of MEA T/K PH2S/bar PCo2 /bar
Imol dm- 3
Muhlbauer & Monaghan ( 1 7 ) 2.4 - 2.6 298-373 0.0001 0 - 1.7- 1.3
Jones et a1. (18 ) 2.5 313-393 0.0015 0.0019(15.3 wt%) - 2.0 - 4.7
Lee et a1. (27) 5.0 313-373 0 - 34.2 o - 55.6
Lawson & Garst (20) 2.5 - 5 298-393 0 - 2.9 0 - 2.3(15.2; 30 wt%)
Lee et a1. ( 1 4 ) 2.5 313-373 o - 60 o - 70
Nasir & Mather (28) 5.0 373 0.00013 0.00002- 0.042 - 0.030
Isaacs e t a1. (26) 2.5 373 o - 0.034 0.00003- 0.014
Lee et a1. (14) have compared their own measurements with those of Muhlbauer andMonaghan and those of Jones et a1. for a concentration of MEA of 2.5 mol dm- 3
, atemperature of 373.15 K, partial pressures of hydrogen sulfide of 0.005 to 0.18bar and partial pressures of carbon dioxide of 0.0009 to 0.17 bar. Agreement iswithin 10% under some conditions but there are wide differences under otherconditions. This may be seen in the following examples given by Lee et a1.:
HSO&-O
82 Hydrogen Sulfide in Aqueous Solvents
COHPONENTS:1. Hydrogen sulfide; H2S; [7783-06-4]
2. Carbon dioxide; C02; [124-38-9)
3. Water; H20; [7732-18-5)
4. Alkanolamines
EVALUATOR:Peter G.T. Fogg,Department of Applied Chemistryand Life Sciences,Polytechnic of North London,Holloway, London N7 8DB, U.K.
February 1987
CRITICAL EVALUATION:
Mole ratio in solution PH2S /bar Pco/barC02!MEA H2 S/ MEA ref (14) , (17) , (18 ) ref (14) , (17 ) (18 )
0.1 0.1 0.044 0.051 0.037 0.007 0.00750.2 0.3 0.62 0.57 0.19 0.220.3 0.1 0.15 0.15 0.14 0.20 0.25 0.230.4 0.2 1.02 0.60 1 .30 0.80
Lawson and Garst contrasted their measurements for 2.4 mol dm- 3 (15 wt%) at373 K with those of Muhlbauer and Monaghan. They noted that Muhlbauer andMonaghan's measurements of the partial pressures of hydrogen sulfide and carbondioxide tend to be higher than their own values and than those of Jones et a1.for similar concentrations of gases in solution. They pointed out that thisdiscrepancy was greater at low gas concentrations than at higher concentrations.
2,2'-Iminobis-ethanol
Authors
Lee et a1. (29)
Lawson & Garst (20)
Lal et a1. (11)
(diethano1amine); C4 Hll N02; [111 -42-2)
Cone. of DEA T/K PH2s /bar Pco2 /bar
/mol dm- 3
2.0 - 3.5 323-373 0.006 0.002-16.5 - 57.6
2.4 (25 wt%) 311-394 0.00013 0 - 22.9- 4.9 (50 wt%) -22.0
2.0 313-373 0.0006 o - 0.065- 0.048
Lal et a1. showed that the solubilities at 313 K, in the absence of carbondioxide, were consistent with data given by Lawson and Garst. In the presenceof carbon dioxide there was poor correlation with predictions from the modelpublished by Kent and Eisenberg (8).
1,1 '-Iminobis-2-propanol (diisopropano1amine); C6H1SN02; [110-97-4)
This system was investigated by Isaacs et a1. (30) and tables of smootheddata have been prepared. No other measurements on this system are available forcomparison but there is no reason to doubt the reliability of this smootheddata.
2-(2-Aminoethoxy)ethanol (dig1yco1amine); C4HllN02; [929-06-6)
This system was investigated by Dingman et a1. (10). No othermeasurements of the four component system are available for comparison. Howeverthe data for the system when one or other of the gases is at zero concentrationare consistent with data for the three component systems published by Martinet a1. (24).
References
1. Atwood, K.; Arnold, M.R.; Kindrick, R.C.Ind. Eng. Chem. 1957, 49, 1439-44.
2. Astarita, G.; Gioia, F.; Balzano, C. Chem. Eng. Sci. 1965, 20, 1101-5.
3. Astarita, G.; Savage, D.W. Chem. Eng. Sci. 1982, 37, 677-86.
4. Danckwerts, P.V.; McNeil, K.M. Trans. Inst. Chem. Eng. 1967, 45,T32-T49.
Hydrogen Sulfide in Aqueous Solvents 83
COHPONENTS:1. Hydrogen sulfide; H2S; [7783-06-4]
2. Carbon dioxide; co2 ; [124-38-9)
3. Water; H20; [7732-18-5)
4. Alkanolamines
CRITICAL EVALUATION:
EVALUATOR:Peter G.T. Fogg,Department of Applied Chemistryand Life Sciences,Polytechnic of North London,Holloway, London N7 8DB, U.K.
February 1987
5. Klyamer, S.D. Gazov. Prom. 1971, 16 (9), 38-42.
6. Klyamer, S.D.; Kolesnikova, T.L. Zhur. Fiz. Khim. 1972, 46, 1056.
7. Klyamer, S.D.; Kolesnikova, T.L.; Rodin, Yu.A.Gazov. Prom., 1973, 18 (2), 44-48.
8. Kent, R.L.; Eisenberg, B. Hydrocarbon Processing 1976, 55 (2), 87-90.
9. Deshmukh, R.D.; Mather, A.E. Chem. Eng. Sci. 1981, 36, 355-362.
10. Dingman, J.C.; Jackson, J.L.; Moore, T.F.Proc. 62nd Annual Convention of the Gas Processors Association 1983,256-68.
11. Lal, D.; otto, F.D.; Mather, A.E. Can. J. Chem. Eng. 1985, 63, 681-5.
12. Jou, F-Y.; Mather, A.E.; otto, F.D.Ind. Eng. Chem. Process Des. Dev. 1982, 21, 539-44.
13. Jou, F-Y.; Mather, A.E.; otto, F.D. Can. J. Chem. Eng. 1985, 63,122-5.
14. Lee, J.I.; Otto, F.D.; Mather, A.E. Can. J. Chem. Eng. 1976, 54, 214-9.
15. Riegger, E.; Tartar, H.V.; Lingafelter, E.C.J. Amer. Chem. Soc. 1944, 66, 2024-7.
16. Leibush, A.G.; Shneerson, A.L. J. Applied Chem. USSR 1950, 23, 149-57.
17. Muhlbauer, H.G.; Monaghan, P.R. Oil & Gas J. 1957, 55 (17), 139-45.
18. Jones, J.H.; Froning, H.R.; Claytor, E.E. Jr.J. Chem. Eng. Data 1959, 4, 85-92.
19. Lee, J.I.; Otto, F.D.; Mather, A.E. Can. J. Chem. Eng. 1974, 52,803-805.
20. Lawson, J.D. ; Garst, A.W. J. Chem. Eng. Data 1976, 21, 20-30.
21 • Isaacs, E.E.; Otto, F.D.; Mather, A.E.J. Chem. Eng. Data 1980, 25, 118-120.
22. Lee, J. I. ; Otto, F .0. ; Mather, A.E.J. Chem. Eng. Data 1973, 18, 71-3,420
23. Bottoms, R.R. Ind. Eng. Chem. 1931 , 23, 501-4.
24. Martin, J.L.; otto, F .0. ; Mather, A.E.J. Chem. Eng. Data 1978, 23, 163-4.
25. Isaacs, E.E. ; otto, F.D.; Mather, A.E.J. Chem. Eng. Data 1977 , 22, 71-3.
26. Isaacs, E.E.; otto, F.D.; Mather, A.E.J. Chem. Eng. Data 1977 , 22, 317-9.
27. Lee, J. I. ; Otto, F.D.; Mather, A.E. J. Chem. Eng. Data 1975, 20, 161-3.
28. Nasir, P.; Mather, A.E. Can. J. Chem. Eng. 1977, 55, 715-7.
29. Lee, J.I.; Otto, F.D.; Mather, A.E. Can. J. Chem. Eng. 1974, 52, 125-7.
30. Isaacs, E.E.; otto, F.D.; Mather, A.E.Can. J. Chem. Eng. 1977, 55, 210-2.
31. Lee, J.I.; Otto, F.D.; Mather, A.E. Can. Gas J. 1972, (May-June), 34-39.
84 Hydrogen Sulfide in Aqueous Solvents
COMPONENTS:1. Hydrogen sulfide; H2S;
[7783-06-4]2. 2-Aminoethanol,{Monoethanol
amine); C2H7NO; [141-43-5]3. Water; H20; [7732-18-5]
ORIGINAL MEASUREMENTS:Riegger, E.; Tartar, H.V.;Lingafelter, E.C.
J. Amer. Chern. Sao. 1944, 66,2024-7.
VARIABLES: PREPARED BY:Temperature, pressure, composition C.L. Young
EXPERIMENTAL VALUES:+ Molality of a*
p !rnrnHg Temperatureamine298.15K 318.15K 333.15K
700 0.6 1.148 1.124 1. 0831.0 1. 086 1.051 1. 0401.5 1. 050 1.011 0.9982.0 1. 033 0.988 0.9683.0 1.011 0.958 0.9344.0 0.998 0.940 0.9095.0 0.991 0.927 0.891
600 0.6 1.126 1. 097 1. 0561.0 1.072 1. 033 1.0111.5 1. 041 0.996 0.9702.0 1. 025 0.975 0.9443.0 1. 004 0.948 0.9104.0 0.991 0.928 0.8845.0 0.984 0.914 0.865
500 0.6 1.101 1. 070 1. 0271.0 1. 058 1.012 0.9841.5 1. 032 0.980 0.9452.0 1.016 0.960 0.9163.0 0.996 0.934 0.8804.0 0.980 0.913 0.8585.0 0.974 0.899 0.837
AUXILIARY INFORMATION
METHOD/APPARATUS/PROCEDURE:
Samples of liquid saturated withhydrogen sulfide. Liquid samplesadded to standard iodine soln., andexcess back titrated with sodiumthiosulfate.
SOURCE AND PURITY OF MATERIALS:
1. Commercial sample.2. Carbide and Carbon Chemicals
Corp. sample distilled,b.p. 170.1OC.
3. No details given.
ESTIMATED ERROR:eT!K = ±0.1;ea = 0.8%.
(estimated by compiler).
REFERENCES:
COHPONENTS
Hydrogen Sulfide in Aqueous Solvents
ORIGINAL l1El\SUREMENTS
85
1. Hydrogen sulfide; H2S;[7783-06-4]
2. 2-Aminoethanol, (Monoethanolamine);C2H7NO: [141-43-5]
3. Hater; H20; [7732-18-5]
Riegger, E.; Tartar, H.V.Lingafelter, E.C.
J. Amer. Chern. Boa. 1944, 66,2024-7.
EXPERIMENTAL VALUES:
+P /mmHg
400
300
200
100
50
25
Holality ofamine
0.61.01.52.03.04.05.0
0.61.01.52.03.04.05.0
0.61.01.52.03.04.05.0
0.61.01.52.03.04.05.0
0.61.01.52.03.04.05.0
0.61.01.52.03.04.05.0
298.15K
1. 0801. 0421. 0201. 0060.9850.9710.963
1. 0531. 0221. 0020.9900.9700.9550.945
1. 0270.9980.9790.9660.9460.9310.918
0.9860.9560.9340.9190.8930.8700.852
0.9340.9020.8760.8560.8190.7840.758
0.8660.8330.8020.7770.7300.6870.643
a*Temperature
318.15K
1.0450.9930.9610.9430.9180.8970.880
1.0110.9670.9390.9210.8910.8690.850
0.9710.9290.9000.8800.8460.8190.800
0.9080.8640.8260.7950.7480.7140.684
0.8260.7820.7420.7060.6480.6010.564
0.7310.6860.6310.6010.5330.4870.453
333.15K
0.9950.9520.9120.8850.8480.8210.801
0.9600.9160.8760.8470.8100.7780.753
0.9080.8630.8220.7930.7510.7140.683
0.8110.7570.7080.6740.6240.5810.547
0.6940.6340.5760.5320.4740.4250.386
0.5510.4900.4330.3880.3310.2910.285
+
*
partial pressure of hydrogen sulfide
Mole of hydrogen sulfide per mole of amine.
86
COMPONENTS:
Hydrogen Sulfide in Aqueous Solvents
ORIGINAL MEASUREMENTS:
1. Hydrogen sulfide; H2S;[7783-06-4]
2. Water; H20; [7732-18-5]3. 2-Aminoethanol,
(monoethanolamine); C2H7NO;[141-43-5]
VARIABLES:
Temperature, pressure, composition
Leibush, A.G.; Shneerson, A.L.
Zhur. Prik. Khim. 1950, 23, 145-152.J. Applied Chem. USSR 1950,23, 149-157.
PREPARED BY:
P.G.T. Fogg
EXPERIMENTAL VALUES:
T/K PH2S /mmHg PH2S /bar* Mole ratioConc.of MEA/mol dm- 3 H2S/MEA
0.93 288.2 0.050 0.000067 0.0681.53 0.00204 0.2431 .85 0.00247 0.4548.6 0.0115 0.714
298.2 0.100 0.000133 0.0680.87 0.00116 0.2433.14 0.00419 0.454
17.2 0.0229 0.714323.2 0.378 0.000504 0.068
3.38 0.00451 0.24313.4 0.0179 0.45465.6 0.0875 0.714
2.5 288.2 0.098 0.000131 0.0610.264 0.000352 0.1191.06 0.00141 0.2504.25 0.00567 0.450
11 .0 0.0147 0.61416.4 0.0219 0.68857.5 0.0767 0.846
*calculated by compiler. is 2-aminoethanol (monoethanolamine)MEA
AUXILIARY INFORMATION
METHOD/APPARATUS/PROCEDURE:
N2 or a mixture of N2 & H2S was
passed successively through two
absorbers containing H2S dissolved
in an aqueous solution of MEA. The
H2S in the emerging gas was passed
into cadmium or zinc acetate
solution and the precipitated
sulfides estimated by iodimetry.
Hydrogen sulfide in the MEA
solutions was also determined by
iodimetry. CO 2 in the MEA
solutions was estimated by reaction
with 30% H2S04 and absorption of
C02 evolved in standard baryta.
SOURCE AND PURITY OF MATERIALS:
1. From H2S0 4 & Na2Si no S02
detected.
3. Contained 3% of impurities
including 0.6 to 1.5 volumes of
C02 per unit volume of solution.
ESTIMATED ERROR:
PH2S
likely to be 5 to 15% too high
because of CO 2 content. (authors)
REFERENCES:
COMPONENTS:
Hydrogen Sulfide in Aqueous Solvents
ORIGINAL MEASUREMENTS:
87
1. Hydrogen sulfide; H2S;[ 7783-06-4]
2. water; H20; [7732-18-5]3. 2-Aminoethanol,
(monoethanolamine); C2H7NO;[141-43-5]
EXPERIMENTAL VALUES:
Leibush, A.G.; Shneerson, A.L.
Zhur. Prik. Khim. 1950, 23, 145-152.J. Applied Chem. USSR 1950,23, 149-157. ----
T/K PH2S /mmHg PH2S /bar* Mole ratioConc.of MEA/mol dm
_3H2S/MEA
2.5 298.2 0.160 0.000213 0.0610.452 0.000603 0.1100.45 0.00060 0.1191 .14 0.00152 0.1921 .71 0.00228 0.2502.53 0.00337 0.3034.0 0.0053 0.3737.15 0.00953 0.450
20.4 0.0272 0.61431 .4 0.0419 0.688
104 0.139 0.846124 0.165 0.854
323. 0.134 0.000179 0.0220.64 0.00085 0.0611.84 0.00245 o•11 97.25 0.00967 0.250
30.6 0.0408 0.450121 0.161 0.688348 0.464 0.846
*calculated by compiler.
MEA is 2-aminoethanol (monoethanolamine)
88 Hydrogen Sulfide in Aqueous Solvents
COMPONENTS:1. Hydrogen sulfide; H2S;
[7783-06-4]
2. 2-Aminoethano1 (Monoethano1amine);C2H7NO; [141-43-5]
3. Water; H20; [7732-18-5]
ORIGINAL MEASUREMENTS:
Atwood, K.; Arnold, M. R.;
Kindrick, R. C.
Ind. Eng. Chern. 1957, 49, 1439-44.
VARIABLES: PREPARED BY:
Temperature, pressure, composition C. L. Young
EXPERIMENTAL VALUES: Cone. H2SWt-%T/K t/oF amine P/mmHg P/kPa /mol R,-l Mole ratiot
299.8 80 5 0.000626 8.35 x 10- 5 0.00275 0.003360.0518 0.00691 0.0483 0.0591
73.0 9.7 0.758 0.945310.9 100 0.0414 0.00552 0.0307 0.0376
0.123 0.0164 0.0542 0.0664283 37.7 0.806 1.00
333.1 140 0.00804 0.00107 0.00476 0.00582106 14.1 0.578 0.714
310.9 100 15 0.0137 0.00183 0.0245 0.009952.24 0.299 0.464 0.190
275 36.7 2.116 0.895322.0 120 0.0439 0.00585 0.0384 0.0156
60.8 8.11 1. 458 0.609322.0 120 20 3370 449.3 - 0.999
5850 779.9 - 1.102344.3 160 5720 762.6 - 1.055299.8 80 30 0.000525 0.0000700 0.00600 0.00121
0.00465 0.000620 0.0276 0.005571.50 0.200 0.757 0.155
57.5 7.67 3.26 0.699289 38.5 4.16 0.908
322.0 120 0.0266 0.00355 0.0376 0.007585.92 0.789 0.653 0.133
264 35.2 3.41 0.733
t Moles of hydrogen sulfide per mole of amine.
AUXILIARY INFORMATION
METHOD/APPARATUS/PROCEDURE:
Gas saturation method was used in
which a known quantity of hydrogen
was passed through a series of
saturators containing a solution of
known hydrogen sulfide concentration.
At partial pressures of H2S greater
than 100 mmHg, solution saturation
method was used. H2S in soln.
determined by iodimetry. Details
in source.
SOURCE AND PURITY OF MATERIALS:
1. Stated purity 99.7 mole percent.
2. Analytical grade.
3. No details.
ESTIMATED ERROR:oT/K = ±0.12; op/kPa = ±2%;
o {Mole ratio) = ±3% (estimated bycompiler) •
REFERENCES:
Hydrogen Sulfide in Aqueous Solvents 89
COMPONENTS:
1. Hydrogen sulfide; H2S;[7783-06-4]
2. 2-Aminoethanol (monoethano1amine);CzH7NO; [141-43-5]
3. water; H2 0; [7732-18-5]
ORIGINAL MEASUREMENTS:
Jones, J. H.; . Froning, H. R.;
Claytor, E. E. Jr.
J. Chern. Engng. Data
1959, 4, 85-92.
VARIABLES: PREPARED BY:
Temperature, pressure C. L. Young
EXPERIMENTAL VALUES:
P§/10SpaConc of MEA t P§/10 Spa
Conc of MEA tT/K /Wt-% a T/K /wt-% a
313.15 0.0013 15.3 0.125 353.15 0.0089 15.3 0.1190.0040 0.208 0.0428 0.2510.0121 0.362 0.118 0.4030.0575 0.643 0.304 0.5690.0796 0.729 0.687 0.7110.141 0.814 373.15 0.0028 0.0410.191 0.842 0.0089 0.0660.251 0.884 0.0640 0.1990.348 0.920 0.307 0.3960.545 0.948 0.959 0.6120.800 0.965 393.15 0.0068 0.036
333.15 0.0095 0.202 0.0295 0.0880.0149 0.251 0.173 0.2060.0484 0.419 0.684 0.3940.167 0.636 413.15 0.0065 0.0250.577 0.849 0.0460 0.0770.581 0.842 0.395 0.1971.13 0.952
p§partial pressure of hydrogen sulfide
atmole ratio in liquid, moles of hydrogen su1fide/ moles ofmonoethano1amine
AUXILIARY INFORMATION
METHOD/APPARATUS/PROCEDURE: SOURCE AND PURITY OF MATERIALS:
1. Purity 99.9 mole per cent. Massspectrometry showed trace amountsof methyl mercaptan, carbondisulfide and carbon dioxide.
2. purity 99.2 mole per cent.
3. Distilled.
Rocking static equilibrium cell
fitted with liquid and gas sampling
ports. Pressure measured with
Bourdon gauge. Concentration of
hydrogen sulfide in gas phase deter
mined by mass spectrometry.
Concentration of hydrogen sulfide inliquid determined by adding to excess ~~__~ ~
of acidified iodine solution and back ESTIMATED ERROR:OT/K = ±0.1 at 313.15 K, ±0.5 at
titrating with standard thiosulfate 413.15 K; oP/kPa = ±1%; oa = ±3%solution. Details in source. (estimated by compiler).
REFERENCES:
H50S-0'
90 Hydrogen Sulfide in Aqueous Solvents
COMPONENTS:1. Hydrogen sulfide; H2S;
[7783-06-4]
2. 2-Aminoethano1, (Monoethano1amine); C2H7NO: [141-43-5]
3. Water; H20; [7732-18-5]
VARIABLES:
Temperature, pressure, composition
ORIGINAL MEASUREMENTS:Lee, J.I.; Otto, F.D.; Mather, A.E.
Can. J. Chem. Engng. 1974, 52, 803-5.
PREPARED BY:C.L. Young
EXPERIMENTAL VALUES:
T/K
313.15
373.15
Conc of MEA-3Imo1 dm
2.5
2.5
PH2S/kPa CL
2252.5 1. 5052049.1 1. 491323.1 1. 231304.5 1. 281257.6 1. 271213.5 1. 261046.6 1.191020.4 1. 22
968.7 1.21959.7 1.19439.9 1. 04428.2 1. 01154.4 0.93
18.4 0.7816.0 0.8115.7 0.781
4247.1 1. 444205.8 1. 554192.0 1.473412.9 1. 412778.5 1. 312140.8 1.181896.0 1.1451379.6 1. 04
730.8 0.965
AUXILIARY INFORNATION
METHOD/APPARATUS/PROCEDURE:
Recirculating vapor flow apparatuswith Jerguson liquid level gaugecell with magnetic pump. Nitrogenadded to vapor to increase pressureto at least 200 kPa. Vapor analysedby gas chromatography. Partialpressure of hydrogen sulfideestimated from knowledge of pressureand vapor pressure of monoethano1amine. Liquid samples passed intosulfuric acid and displaced hydrogensulfide collected in buret.
SOURCE AND PURITY OF NATERIALS:
1. Matheson C.P. grade purity 99.91mole per cent.
2. Fisher Scientific sample, purity99.95 mole per cent.
3. Distilled Nitrogen used as carrier,purity 99.997 mole per cent.
ESTlNATED ERROR:oT/K = ±0.5; oplkPa = ±l%OCL = ±3-5%
REFERENCES:
COMPONENTS:
Hydrogen Sulfide in Aqueous Solvents
ORIGINAL MEASUREMENTS:
91
1. Hydrogen sulfide; H2S; [7783-06-4]
2. 2-Aminoethanol, (Monoethanolamine);C2H,NO: [141-43-5)
3. Water; H20; [7732-18-5)
Lee, J.I.; Otto, F.D.;Mather, A.E.
Can. J. Chern. Engng. 1974, 52,
803-5.
EXPERIMENTAL VALUES:T/K Cone of MEA
-3/ mol dm
373.15
313.15
373.15
2.5
5.0
5.0
PH2S/kPa a.
726.0 0.957546.1 0.936410.2 0.884283.4 0.805194.3 0.751148.2 0.694127.5 0.602122.7 0.62103.4 0.56
84.8 0.53
2220.1 1. 322915.6 1. 025723.9 0.974497.8 0.900402.6 0.840146.2 0.865144.8 0.895128.2 0.855115.1 0.767
30.7 0.6774.21 0.4352.55 0.3761. 63 0.278
3176.4 1. 0321983.6 0.895
679.1 0.785430.9 0.700282.7 0.615221. 3 0.580194.4 0.515
51. 9 0.34442.1 0.288
7.24 0.123
a. = Mole ratio in liquid phase, H2S/Monoethanolarnine.
92 Hydrogen Sulfide in Aqueous Solvents
COMPONENTS:
1. Hydrogen sUlfide; H2 S;[7783-06-4]
2. Water; H20; [7732-18-5]3. 2-Aminoethanol, (Monoethanol
amine); C2H7NO; [141-43-5]
VARIABLES:
Temperature, pressure
ORIGINAL MEASUREMENTS:Lawson, J.D.;Garst, A.W.
J. Chern. Engng. Data~ 1976, 21~
20-30.
PREPARED BY:
C.L. Young
EXPERIMENTAL VALUES:
T/K P/bar Cone of MEA
/wt%
313.15 0.000016 15.20.0000190.000110.000250.000410.000360.000730.000650.0150.0122.5582.3985.6755.782
24.78
333.15 0.000012 15.20.0000990.000370.000590.000990.00150.0450.047
Liquid compomol H2S/mo1amine
0.01400.01470.03290.03960.05900.05910.07890.07950.3730.3801. 0261. 0491. 0991.1161. 633
0.00520.01410.03390.04060.05930.08050.3840.392
Mole fraction ofhydrogen sulfidein liquid, xH2S
0.0007020.0007370.001650.001980.002950.002960.003940.003970.01840.01870.04900.05000.05230.05300.0757
0.0002610.0007070.001700.002030.002970.004020.01890.0193
AUXILIARY INFORMATION
METHOD/APPARATUS/PROCEDURE:
Rocking equilibrium cell fittedwith liquid and vapor samplingvalves. Pressure measured withBourdon gauge. Cell charged withamine then hydrogen sulfide andmethane added as an inert gas to"achieve the desired total pressure".Vapor phases analysed by massspectrometry. Liquid samplesanalysed by electrometric titration,details in source. Additionalanalytical methods were usedfor some samples.
SOURCE AND PURITY OF MATERIALS:1. Purity 99.5 mole per cent.2. Distilled.3. Commercial sample purity better
than 99 mole per cent asdetermined by acid titration.
ESTIMATED ERROR:oT/K = ±0.15 at 300K increasing to±O.6 at 413K; oP/bar =±0.5%;oXH2S = ±3%.
REFERENCES:
COMPONENTS:
Hydrogen Sulfide in Aqueous Solvents
ORIGINAL MEASUREMENTS:
93
1. Hydrogen sulfide; H2S;[7783-06-4]
2. Water; H20; [7732-18-5]3. 2-Aminoethano1, (Monoethano1
amine); C2H7NO; [141-43-5]
Lawson, J.D.; Garst, A.W.
J. Chern. Engng. Data. 1976, 21.
20-30.
EXPERIMENTAL VALUES:
T/K P/bar Conc of MEA
/wt%
Liquid compmol H2S/mo1amine
Mole fraction ofhydrogen sulfidein liquid, x H2S
333.15
353.15
373.13
393.15
413.15
299.81
310.93
366.48
3.4505.995
32.64
0.0000370.000130.000990.001550.1130.1204.6638.660
32.37
0.0000630.000410.00630.00750.01840.3060.3069.299
10.1038.50
0.0230.0240.0430.6390.6730.9861. 239
38.24
0.0450.053
0.000760.00520.00920.017
0.000010.000830.00750.107
0.000360.00130.1421. 667
15.2
30
0.9971.1141.526
0.00550.01430.03490.04180.3820.3850.9931. 0281. 468
0.00580.01430.06330.07930.1210.3760.3840.9521.0151. 358
0.06530.08120.1220.3830.3860.9230.9391. 36
0.06100.0749
0.0810.2310.3110.406
0.00830.0480.1990.616
0.00890.05090.2070.570
0.04760.05290.0711
0.0002760.0007170.001750.002090.01880.01900.04750.04900.0686
0.000290.000720.003170.003960.006030.01850.01890.04560.04850.0638
0.003270.004060.006080.01890.01900.04430.04500.0639
0.003050.00374
0.009000.02520.03370.0435
0.0009300.005350.02180.0646
0.0009970.005680.02270.0601
94
COMPONENTS:
Hydrogen Sulfide in Aqueous Solvents
ORIGINAL MEASUREMENTS:
1. Hydrogen sulfide; H2S;[7783-06-4]
2. Water; H20; [7732-18-5]3. 2-Aminoethano1 (Monoethano1amine):
C2H,NO; [141-43-5]
VARIABLES:
Pressure
EXPERIMENTAL VALUES:
Isaacs, E. E.; otto, F. D.;Mather, A. E.J. Chern. Eng. Data
1980, 25, 118-120.
PREPARED BY:C. L. Young
T/K
373.2
Partial pressure ofhydrogen sulfide
/kPa
0.00900.03100.1400.3541. 671. 50
Mole ratio H2S/C2H,NOin liquid
0.0160.02100.03000.04300.0900.092
concentration of 2-Aminoethanol was 2.5 kmo1 m- 3 (soln.).
AUXILIARY INFORMATION
METHOD/APPARATUS/PROCEDURE: SOURCE AND PURITY OF MATERIALS:
No details given.
Nitrogen passed through three 250 ml
vessels in series which contained
amine solution with a certain amount
of dissolved carbon dioxide and
hydrogen sulfide. Emerging gas
from last vessel analysed by GC.
Liquid sample taken from last vessel.
Hydrogen sulfide content determined
by iodine-thiosulfate titration.
ESTIMATED ERROR:
oT/K=±0.5;
(estimated
REFERENCES;
ox=±6%
by compiler)
Hydrogen Sulfide in Aqueous Solvents 95
COMPONENTS:
1. Hydrogen sulfide; H2S;[7783-06-4]
2. Water; H20; [7732-18-5]3. Ethanol, 2,2'-iminobis-,
(diethanolamine); C4HllN02;[111-42-2]
VARIABLES:Temperature, pressure, composition
of liquid phase
ORIGINAL MEASUREMENTS:Leibush, A.G.; Shneerson, A.L.
Zhur. Prik. Khim. 1950, 23, 145-152.J. Applied Chem. USSR 1950,23, 149-157.
PREPA\l.ED BY:
P.G.T. Fogg
EXPERIMENTAL VALUES:
Conc.of DEA T/K/mol dm- 3
Mole ratioH2S/DEA
0.97 288.2 0.076 0.000101
0.29 0.00039
1. 27 0.00169
5.73 0.00764
24.0 0.0320
43.0 0.0573
94.5 0.1260
298.2 0.147 0.000196
0.50 0.00067
1 .97 0.00263
7.92 0.01056
38.0 0.0507
70.8 0.0944
145 0.193
*calculated by compiler. DEA = diethanolamine
AUXILIARY INFORMATION
0.040
0.091
0.194
0.420
0.670
0.734
0.838
0.040
0.091
0.194
0.420
0.670
0.734
0.838
METHOD/APPARATUS/PROCEDURE:
N2 or a mixture of N2 & H2S was
passed successively through two
absorbers containing H2S dissolved
in an aqueous solution of DEA. The
H2S in the emerging gas was passed
into cadmium or zinc acetate
solution and the precipitated
sulfides estimated by iodimetry.
Hydrogen sulfide in the DEA
solutions was also determined by
iodimetry.
SOURCE AND PURITY OF MATERIALS:
1. From H2S04 & Na2S: no S02detected
3. Contained 0.2 to 0.6 volumes ofC02 per unit volume ofsolution; less than 1% byweight of total impurities.
ESTIMATED ERROR:oT/K = ± 0.1 (authors)PH S likely to be 5 to 15% too
2 high because of CO 2content. (authors)
REFERENCES:
96
COMPONENTS:
Hydrogen Sulfide in Aqueous Solvents
ORIGINAL MEASUREMENTS:
1. Hydrogen sulfide; H2S;[7783-06-4)
2. Water; H20; [7732-18-5)3. Ethanol, 2,2'-iminobis-,
(diethanolamine); C4HllN02;[111-42-2)
EXPERIMENTAL VALUES:
Leibush, A.G.; Shneerson, A.L.
Zhur. Prik. Khim. 1950, 23, 145-152.J. Applied Chem. USSR 1950,23, 149-157.
Conc.of DEA T/K/mol dm- 3
0.97 323.2
2.0 288.2
298.2
323.2
0.34
1.59
6.17
32.7
143
197
312
0.319
3.0
6.9
14.6
40.5
99
0.167
0.71
3.3
5.1
12.1
12.5
13.5
23.7
68.5
219
0.048
0.276
0.565
11 .3
15.1
40.8
86.5
0.00045
0.00212
0.00823
0.0436
0.191
0.263
0.416
0.000425
0.0040
0.0092
0.0195
0.0540
0.132
0.000223
0.00095
0.0044
0.0068
0.0161
0.0167
0.0180
0.0316
0.0913
0.292
0.000064
0.000368
0.000753
0.0151
0.0201
0.0544
0.1153
Mole ratioH2S/DEA
0.040
0.091
0.194
0.420
0.670
0.734
0.838
0.073
0.221
0.342
0.465
0.624
0.780
0.035
0.073
0.175
0.221
0.342
0.353
0.368
0.465
0.624
0.780
0.006
0.022
0.035
0.175
0.221
0.342
0.465
*calculated by compiler. DEA = diethanolamine
Hydrogen Sulfide in Aqueous Solvents 97
COMPONENTS:
1. Hydrogen sulfide; H2S;[7783-06-4]
2. 2,2 L lminobisethano1 (Diethano1amine); C .. HIIN02;[111-42-2]
3. water; H20; [7732-18-5]
VARIABLES:
Temperature, pressure, composition
EXPERIMENTAL VALUES:
ORIGINAL MEASUREMENTS:
Atwood, K.; Arnold, M. R.;
Kindrick, R. C.Ind. Eng. Chern. 1957, 49, 1439-44.
PREPARED BY:
C. L. Young
T/K
310.9
333.1
299.8
322.0
310.9
322.0
100
140
80
120
100
140
tvt-%amine
10
25
50
P/rnrnHg
0.346712
0.587178
0.008702.89
3200.131
6820.0566
63.1422
0.13535.7
646
P/kPa
0.046294.9
0.078323.7
0.0011600.385
42.70.0175
90.90.007558.42
56.30.01804.76
86.1
Cone. H2S/mol i-I
0.05200.9390.03370.6750.01230.3162.0240.03272.0020.02811.9153.540.02810.7573.11
Mole ratiot
0.05430.9970.3520.7130.005050.1300.8620.01340.8520.005600.3940.7510.005590.1530.653
t Moles of hydrogen sulfide per mole of amine.
AUXILIARY INFORMATION
METHOD/APPARATUS/PROCEDURE:
Gas saturation method was used in
which a known quantity of hydrogen
was passed through a series ofsaturators containing a solution of
known hydrogen sulfide concentration.
At partial pressures of H2S greaterthan 100 rnrnHg, solution saturation
method was used. H2S in soln.
determined by iodimetry. Details
in source.
SOURCE AND PURITY OF MATERIALS:
1. Stated purity 99.7 mole percent.
2. Analytical grade.
3. No details.
ESTIMATED ERROR:
oT/K = ±0.12; op/kPa = ±2%;
o (Mole ratio) = ±3% (estimated bycompiler).
REFERENCES:
98
COMPONENTS:
Hydrogen Sulfide in Aqueous Solvents
ORIGINAL MEASUREMENTS:
1. Hydrogen sulfide; H2 S;[7783-06-4]
2. 2,2~-Iminobisethanol (Diethanolamine); C 4 H11 N0 2 ; [111-42-2]
3. Water; H2 0; [7732-18-5]
Lee, J.I.; Otto, F.D.; Mather, A.E.
J. Chern. Eng. Data, 1973, 18, 71-3,
420.
VARIABLES: PREPARED BY:
Temperature, pressure, composition C. L. Young
EXPERIMENTAL VALUES:
T/K Conc of 2 /mol -3dm p/kPa a
298.15 2.0 2.45 0.44022.1 0.73127.5 0.76199.8 0.888
222.0 0.944282.0 0.994362.9 1.005459.5 1. 087516.4 1.111651.5 1.140703.3 1.188899.8 1. 256937.7 1. 326
1267.2 1. 3981421.7 1. 4671525.1 1.547
323.15 2.0 5.41 0.33121.9 0.54232.4 0.63534.0 0.64142.6 0.64665.9 0.724
186.1 0.842300.6 0.910
AUXILIARY INFORMATION
METHOD/APPARATUS/PROCEDURE:
Recirculating vapor flow apparatuswith Jerguson liquid level gaugecell and magnetic pump. Nitrogenadded to vapor to increase pressureto at least 200 kPa. Vapor analysedby gas chromatography. Partialpressure of hydrogen sulfideestimated from knowledge of pressureand vapor pressure of diethanolamine.Liquid samples passed into sulfuricacid and displaced hydrogen sulfidecollected in buret.
SOURCE AND PURITY OF MATERIALS:
1. Matheson, C.P. grade purity 99.91mole per cent.
2. Purity 99.8 mole per cent.
3. (Nitrogen used as carrier, purity99.997 mole per cent.)
ESTIMATED ERROR:
oT/K = ±0.5; oplkI>a = ±l%;oa = ±3-5%.
REFERENCES:
Hydrogen Sulfide in Aqueous Solvents 99
T/K Cone. of 2/mol-3
p/kPadm a
323.15 2.0 614.0 0.978903.2 1.028910.1 1.030
1001.1 1. 0231138.3 1.1801332.7 1.2551373.4 1. 2271655.4 1. 3101728.5 1.2751892.6 1. 347
348.15 2.0 3.25 0.1597.72 0.226
13.4 0.31615.1 0.35437.2 0.44563.0 0.530
128.1 0.639228.9 0.783476.4 0.905710.1 0.938974.2 1. 012
1139.7 1. 0791152.1 1. 0801365.1 1.0621475.5 1.1171778.8 1. 2002000.1 1.274
373.15 2.0 11.0 0.15057.6 0.314
176.5 0.506429.2 0.694889.4 0.873
1434.8 1. 0531896.0 1.1271968.4 1.131
393.15 2.0 25.2 0.16274.5 0.256
342.0 0.521688.8 0.680
1042.5 0.8121516.8 0.9751916.7 1.0621925.7 1.070
298.15 3.5 0.834 0.2013.89 0.3526.76 0.449
16.9 0.61335.8 0.68148.5 0.711
100.0 0.785111.0 0.790266.1 0.875389.7 0.948732.9 1. 020
1037.0 1.1031357.0 1.1201756.1 1.206
323.15 3.5 0.738 0.0645.07 0.200
21.8 0.38766.8 0.616
123.4 0.713219.9 0.776392.3 0.858672.2 0.918935.6 0.975
1385.8 1. 0391985.7 1. 097
100 Hydrogen Sulfide in Aqueous Solvents
T/K Cone of 2./mol drn- 3 p/kPa a
348.15 3.5 2.36 0.07212.8 0.19859.4 0.396
166.8 0.614307.5 0.723589.5 0.831871. 5 0.855
1441.0 0.9452104.9 1. 042
373.15 3.5 5.47 0.06933.9 0.193
139.3 0.391226.1 0.478357.1 0.582512.3 0.675601.2 0.688921.1 0.762
1362.4 0.8302076.0 0.927
393.15 3.5 13.3 0.06978.2 0.187
253.0 0.365361.3 0.440677.7 0.618750.1 0.625
1238.3 0.7252003.6 0.836
a = mole ratio in liquid phase H2 S/niethanolamine
Hydrogen Sulfide in Aqueous Solvents 101
COMPONENTS:1. Hydrogen sulfide; H2S;
[7783-06-4]2. 2,2'-iminobisethanol,
(Diethanolamine); C4HIINOZ;[111-42-2]
3. Water; H20; [7732-18-5]
VARIABLES:
Temperature, pressure, composition
ORIGINAL MEASUREMENTS:Lee, J.I.; Otto, F.D.; Mather, A.E.
J. Chern. Eng. Data. 1973, 18, 71-3,420.Some data taken from Amer. Chern. Soc.deposited document.
PREPARED BY:
C.L. Young.
EXPERIMENTAL VALUES:
T/K Conc.of DEA/mol dm- S
298.15
323.15
0.5
0.5
P/kPa a
0.119 0.20800.390 0.29651. 76 0.4028
15.2 0.650671. 7 0.8642
161.7 1. 015201. 0 1. 034275.4 1.194464.0 1. 493647.8 1. 896658.4 1. 813
1034.2 2.5671272 .1 2.8931561.6 3.293
0.0779 0.09460.883 0.208
19.2 0.54970.2 0.724270.3 0.7471
102.0 0.8296244.1 1. 015315.8 1. 048414.4 1.196589.5 1. 380775.6 1. 581
AUXILIARY INFORHATION
METHOD/APPARATUS/PROCEDURE:Recirculating vapor flow apparatuswith Jerguson liquid level gaugecell and magnetic pump. Nitrogenadded to vapor to increase pressureto at least 200 kPa. Vapor analysedby gas chromatography. Partialpressure of hydrogen sulfideestimated from knowledge of pressureand vapor pressure of diethanolamine.Liquid samples passed into sulfuricacid and displaced hydrogen sulfidecollected in buret.
System contained a trace of carbondioxide.
SOURCE AND PURITY OF MATERIALS:1. Matheson C.P. grade purity
99.91 mole per cent.
2. Purity 99.8 mole per cent.
3. Distilled nitrogen used ascarrier, purity 99.997 moleper cent.
ESTIMATED ERROR:
oT/K = ±0.5; oP/kPa = ±l%joa = ±3-5%.
REFERENCES:
102
COMPONENTS:
Hydrogen Sulfide in Aqueous Solvents
ORIGINAL MEASUREMENTS
1. Hydrogen sulfide; H2S: [7783-06-4]
2. 2, 2 '-iminobisethano1,(Diethano1amine); C4HIIN02;[111-42-2]
3. Water; H20; [7732-18-5]
LeeJ J.I.; Otto, F.D.;Mather, A.E.
J. Chern. Eng. Data. 1973, 18.
71-3,420.
EXPERIMENTAL VALUES: -3T/K Cone of DEA/mo1 dm P/kPa ex
323.15
348.15
373.15
393.15
298.15
323.15
0.5
0.5
0.5
0.5
5.0
5.0
1132.81521. 0
0.8002.464.73
33.388.2
311.6353.7854.2
1081.11622.3
2.669.60
35.674.5
191.5552.3
1125.21603.0
4.9617.136.9
206.3518.5978.4
1425.11585.8
0.4760.8201.102.72
14.618.019.042.776.2
262.0559.2755.7868.7
1104.51671. 9
0.8964.32
14.946.2
131.3273.9343.4930.8
1246.81635.4
2.04922.431
0.09600.16910.24910.50940.6420.9800.97531.37021. 5881. 932
0.1050.2020.3680.4860.68581. 068·1.4551. 682
0.1050.2020.28760.62520.87141.2561.54121. 662
0.11560.16050.20280.31720.54180.58940.58210.71660.7890.8790.9420.9981. 0851.1021.160
0.08520.2050.3290.5060.68450.8200.83220.9010.9921. 043
COMPONENTS
Hydrogen Sulfide in Aqueous Solvents
ORIGINAL MEASUREHENTS:
103
1. Hydrogen sulfide; H2S; [7783-06-4]
2. 2,2'-iminobisethanol,(Diethanolamine); C4HllN02;[111-42-2]
3. Water; H20: [7732-18-5]
Lee, J.I.; Otto, F.D.;Mather, A.E.
J. Chern. Eng. Data. 1973, 18.
71-3,420
EXPERIMENTAL VALUES:T/K Cone. of DEA
/mo1 dm-!
348.15 5.0
373.15 5.0
393.15 5.0
P/kPa ex
0.618 0.02231. 43 0.05118.96 0.1226
17.8 0.18753.6 0.338577.2 0.386
144.8 0.4974274.4 0.661354.0 0.6963620.5 0.7922
1173.5 0.91811359.6 0.9421776.1 0.9729
5.82 0.048448.9 0.1869
124.1 0.3167219.2 0.415384.5 0.5827819.1 0.7412
1542.3 0.8241
14.9 0.048971. 8 0.1408
248.2 0.3284400.2 0.438495.0 0.5111761. 2 0.5559971. 5 0.6126
1338.9 0.66231661. 6 0.7274
ex = Mole ratio in liquid, H2S/Diethanolamine
104 Hydrogen Sulfide in Aqueous Solvents
COMPONENTS:
1. Hydrogen sulfide; H2S;[7783-06-4]
2. Water; H20; [7732-18-5]3. 2,2'-iminobisethanol,
Diethanolamine; C~HllN02;
[111-42-2]
VARIABLES:
Temperature, pressure
ORIGINAL MEASUREMENTS:
Lawson, J.D. and Garst, A.W.
J. Chem. Engng. Data. 1976, 21,
20-30.
PREPARED BY:
C.L. Young
EXPERIMENTAL VALUES:
T/K PH2S/bar Cone. of DEAWt. %
Liquid compomol H2S /molamine.
Mole fractionof hydrogensulfide inliquid, x H2S
310.93 0.0000150.0000090.0000120.0000970.0000710.00110.00170.00440.00870.00950.01600.01800.02050.01840.01530.01450.02890.07860.09190.2131.0131. 0702.944
25 0.00380.00430.00440.01120.01570.05260.07550.1330.1770.1960.1970.2170.2300.2300.2340.2580.3190.4570.4810.6520.8550.8300.975
0.000210.000230.000240.000600.000850.002830.004060.007120.009460.01050.01060.01160.01230.01230.01250.01370.01690.02410.02530.03400.04410.04290.0500
AUXILIARY INFOR}~TION
METHOD/APPARATUS/PROCEDURE:
Rocking equilibrium cell fitted withliquid and vapor sampling valves.Pressure measured with Bourdongauge.
Cell charged with amine thenhydrogen sulfide and methane addedas an inert gas to "achieve thedesired total pressure"
Vapor phases analysed by massspectrometry. Liquid samplesanalysed by electrometric titration,details in source. Additionalanalytical methods were used forsome samples.
SOURCE AND PURITY OF MATERIALS:
1. Purity 99.5 mole per cent.2. Distilled.3. Commercial sample purity better
than 99 mole per cent asdetermined by acid titration.
ESTIMATED ERROR:oT/K = ±0.15 at 310 K increasingto ±0.6 at 422 K;oXH2S = ±lO%increasing to±16% at
low pressuresREFERENCES:
Hydrogen Sulfide in Aqueous Solvents 105
Cm.1PONENTS :
1. Hydrogen sulfide; H2S; [7783-06-4]
2. Water; H20; [7732-18-5]
3. 2, 2 '-iminobisethanol,Diethanolamine; C4HllN02;[111-42-2]
ORIGINAL ~ASUREMENTS:
Lawson, J.D. and Garst, A.W.
J. Chem. Engng. Data. 1976,
21, 20-30.
EXPERIMENTAL VALUES:
T/K PH2/bar Cone of DEA Liquid compoWt. % mol H2S/mo1
amine
Mole fractionof hydrogensulfide inliquid, x
H2S
310.93
324.82
338.71
352.59
366.48
2.7582.678
13.98820.78322.78126.645
0.01650.05600.2642.558
17.852
0.000110.000080.000130.000350.000280.001600.002140.02620.02740.03620.06170.06100.08570.07630.05080.07190.04660.1130.2800.2610.4020.4770.6662.5455.2763.997
18.65123.84726.83131.441
0.0750.2041.0474.570
19.580
0.000130.00150.00230.00430.0870.1240.181
25
25
1.0821.0431.1071.3951.4121.582
0.1800.3170.5880.9581.241
0.00450.00690.00920.01000.01510.03010.04880.1240.1430.1790.2050.2070.2520.2550.2560.2570.2640.3180.4460.4620.5150.5910.6440.8940.9420.9911.2301.251.3151.432
0.1800.3140.5820.9181.212
0.00390.01530.02080.03190.1320.1780.201
0.05520.05330.05640.07000.07080.0787
0.009620.01680.03080.04920.0628
0.000240.000370.000500.000540.000810.001620.002630.006650.007660.009570.01090.01110.01340.01360.01370.01370.01410.01690.02350.02430.02710.03090.03360.04600.04840.05080.06230.06320.06630.0718
0.009620.01670.03040.04720.0614
0.000210.000830.001120.001720.007080.009520.0107
106 Hydrogen Sulfide in Aqueous Solvents
COMPONENTS:
1. Hydrogen sulfide; H2S; [7783-06-4]
2. Water; H20; [7732-18-5]
3. 2, 2 '-iminobisethanol,Diethanolamine; C4HllN021[111-42-2]
ORIGINAL MEASUREMENTS
Lawson, J.D. and Garst, A.W.
J. Chern. Engng. Data. 1976,
21~ 20-30.
T/K
366.48
380.37
394.25
408.15
422.04
310.93
333.15
366.48
0.2170.1750.3661.4125.9286.128
23.84735.038
0.2220.5801. 9327.354
25.712
0.00450.00410.3960.4650.4930.9863.3045.0238.4208.260
28.11037.036
0.6134.476
10.112
1.0924.983
10.698
0.000120.00390.0320.253
0.000090.0440.866
0.00450.0410.3862.758
Conc.of DEAHt. %
25
50
54.5
50
Liquid camp.mol H2S/mo1amine.
0.2110.2120.3150.5650.8940.8961.1161. 295
0.1690.3060.5630.8561.134
0.01430.01510.1690.1920.2020.2950.5310.6000.7680.8411. 0951.241
0.1620.4960.766
0.1510.4550.587
0.01110.05220.2120.553
0.00530.1240.587
0.0110.0550.2110.566
Mole fractionof hydrogensulfide inliquid, x
H2S
0.01230.01130.01670.02960.04600.04620.05680.0653
0.009040.01630.02950.04420.0577
0.0007710.0008150.009040.01030.01080.01570.02790.03140.03980.04340.05580.0628
0.008670.02610.0397
0.008090.02400.0307
0.001620.007570.03010.0748
0.0007740.01780.0790
0.001610.007980.02990.0764
Hydrogen Sulfide in Aqueous Solvents 107
COMPONENTS:1. Hydrogen sulfide; H2S;
[7783-06-4]2. Water; H20; [7732-18-5]
3. Ethanol, 2,2'-iminobis(diethanolamine); C4HllN02;[111-42-2]
VARIABLES:
Temperature, pressure
EXPERIMENTAL VALUES:
ORIGINAL MEASUREMENTS:
Lal, D.; otto, F.D.; Mather, A.E.
Can.J.Chem.Eng. 1985, 63, 681-685.
PREPARED BY:
P.G.T. Fogg
313.15 0.0420.0510.0530.0530.0640.1060.1490.1620.1900.2160.2450.2760.3840.5511 .355
Mole ratio inliquid, H2S/DEA
0.0430.0510.0570.0510.0540.0630.0830.0810.0870.0970.1020.1170.1410.1890.219
373.15 0.00750.0110.0120.0160.0250.0440.0610.0920.1370.1950.2380.4050.6530.7520.8951 .2931 .4073.181
Mole ratio inliquid, H2S/DEA
0.00710.00850.00810.00980.00940.01090.01380.01340.01790.02080.01940.03270.0410.0420.0480.0570.0640.102
Concentration of diethanolamine = 2.0 kmol m- 3 (2.0 mol dm- 3)
AUXILIARY INFORMATION
METHOD/APPARATUS/PROCEDURE:
Apparatus described in ref. (1) was
used. Nitrogen was passed throughthree 500 cm 3 stainless steel
vessels in series. These containedamine solution and dissolved H2S.
Temperatures were controlled to
± 0.5 K by an oil-bath. The gasemerging from the last vessel was
analysed by gas chromatography.
Samples of liquid from this vessel
were analysed for H2S by
iodine-thiosulfate titration.
SOURCE AND PURITY OF MATERIALS:
3. supplied by Dow chemicals.
ESTIMATED ERROR:oT/K = ± 0.5 (authors)oP/P = ± 0.15 at PH S > 0.05 kPa;larger at lower 2partial pressures (authors).
REFERENCES:
1. Isaacs, E.E.; otto, F.D.;Mather, A.E. J.Chem.Eng.Data 1980,25, 118.
108 Hydrogen Sulfide in Aqueous Solvents
COMPONENTS:1. Hydrogen sulfide; HzS;
[7783-06-4]
2. Ethanol, 2- (2-aminoethoxy)(Diglycolamine); C4HllNOz;[929-06-6J
3. Water; HzO; {7732-l8-5J
ORIGINAL MEASUREMENTS:Martin, J.L.; Otto, F.D.; Mather,A.E.
J. Chern. Engng. Data. 1978, 23,163-4.
VARIABLES: PREPARED BY:
Temperature, pressure C.L. Young
EXPERIMENTAL VALUES:
T/K P§/kPa Cone of DGA at/Wt%
T/K Cone of DGA at/Wt%
0.221
0.9090.8490.8060.7120.6400.6390.5710.5220.4560.3160.2170.2100.1820.1160.1000.0950.0710.057
60.0
60.0
2.52
189016601460
987662620509396273126
65.355.148.217.516.513.4
9.294.87
373.15
323.151730 60.0 1.0911490 1.0681730 1.0521480 1.0431140 1.001
679 0.929414 0.877217 0.778121 0.711121 0.699
86.1 0.65772.9 0.65463.1 0.60846.2 0.57753.1 0.54328.3 0.50818.9 0.45211.5 0.381
8.87 0.3445.36 0.2913.91 0.262
p§ partial pressure of hydrogen sulfide
323.15
at mole ratio in liquid, hydrogen sUlfide/diglycolamine
AUXILIARY INFORMATION
METHOD/APPARATUS/PROCEDURE:
Recirculating vapor flow apparatuswith Jerguson liquid level gaugecell and magnetic pump. Nitrogenadded to vapor to increase pressureto at least 350 kPa. Vapor analyzedby gas chromatography. Partialpressure of hydrogen sulfide estimated from knowledge of pressure andvapor pressure of diethanolamine.Liquid samples passed into sUlfuricacid and displaced carbon dioxidecollected in buret.
SOURCE AND PURITY OF MATERIALS:
1. No details given.
2. Jefferson Chemical Co. sample
3. No details given.
ESTIMATED ERROR:oT/K = ±0.5; oP/bar = ±1.0%; oaHzS= ±0.02 or ±4% (whichever isgreater).
REFERENCES:
COMPONENTS:
Hydrogen Sulfide in Aqueous Solvents
ORIGINAL MEASUREMENTS:
109
1. Hydrogen sulfide; H2S;[ 7783-06-4]
2. Water; H20; [7732-18-5]3. 2,2'-(Methylimino)bisethanol
(methy1diethano1Bmine)iCSH13N02i [105-59-9]
VARIABLES:
Temperature, pressure, composition.
EXPERIMENTAL VALUES:
Jou, F-Y.i Mather, A.E.; otto, F.D.
Ind.Eng.Chem.Process Des.Dev.1982, 21, 539 - 544.
PREPARED BY:
P.G.T. Fogg
Concentration of methyldiethanolamine (MDEA) = 1.0 kmol m- 3 (1.0 mol dm- 3 )
T/K PH2s /kPa Mole ratioin liquidH2S/MDEA
298.2 0.00674 0.0293
0.0273 0.0539
0.170 0.137
1.10 0.315
8.37 0.658
38.9 0.911
182.0 1 .183
413.0 1 .424
830.0 1 .850
1380.0 2.364
1960.0 2.935
313.2 0.00230 0.0111
0.00409 0.0144
0.0109 0.0225
0.0910 0.0613
0.513 0.149
T/K
313.2
343.2
1 .99
10.9
43.3
102.0
417 .0
1290.0
1800.0
2730.0
0.00210
0.00336
0.00810
0.0110
0.0232
0.0391
0.08360.269
Mole ratioin liquidH2S/MDEA
0.297
0.604
0.866
0.994
1 .308
1 .917
2.250
2.902
0.00540
0.00661
0.0109
0.0130
0.0183
0.0225
0.03000.0537
AUXILIARY INFORMATION
METHOD/APPARATUS/PROCEDURE:
An equilibrium cell consisted of aJerguson gage with a 250 cm 3 tubulargas reservoir mounted at the top.Gas was circulated with a magneticpump. Temperatures were measured bythermopiles and controlled to±0.5 °C by an air-bath. Pressureswere measured by a Heise bourdontube gage. The cell was chargedwith MDEA and H2S to the appropriatepressure. Nitrogen was added, wherenecessary, to ensure that the totalpressure was above atmospheric.Gases were circulated for at least8 h. The gas phase was analysed bygas chromatography. H2S in theliquid phase was determined byiodimetry and amine by titrationwith H2S0 4 • Solubilities at partialpressures less than 100 kPa weremeasured by a flow method.
SOURCE AND PURITY OF MATERIALS:
1. of high purity from Linde &Matheson.
3. from Aldrich Chemical Co.;purity > 99%
ESTIMATED ERROR:
oT/K = ±0.5 (authors)
REFERENCES:
110
COMPONENTS:
Hydrogen Sulfide in Aqueous Solvents
ORIGINAL MEASUREMENTS:
1. Hydrogen sulfide; H2S;[7783-06-4]
2. Water; H20; [7732-18-5]3. 2,2'-(Methylimino)bisethanol
(methyldiethBnolBmine);CsHlaN02; [105-59-9]
Jou, F-Y.; Mather, A.E.; otto, F.D.
Ind.Eng.Chem.Process Des.Dev.1982, 21, 539 - 544.
EXPERIMENTAL VALUES:
Concentration of methyldiethanolamine (MDEA) = 1.0 kmol m- a (1.0 mol dm- a )
343.2 11.0
14.3146.0
511 .0925.0
1650.02420.0
3690.0
5030.0
373.2 0.0900.236
1.034.22
35.8113.0
414.0
Mole ratioin liquidH2S/MDEA
0.354
0.3840.886
1 .1851 .405
1 .751
2.0852.5913.229
0.01790.0283
0.05610.118
0.358
0.593
0.936
T/K
373.2
393.2
994.0
2090.02930.0
4920.0
5890.00.050
0.521. 70
11.5
129.0496.0
1290.02710.0
3730.0
5230.0
Mole ratioin liquidH2 S / MDEA
1 .251
1 .6412.298
2.6653.0000.0098
0.03240.05660.145
0.4950.8711 .2331 .750
2.078
2.627
Concentration of methyldiethanolamine =
313.2 0.00260
0.00871
0.03080.171
0.370
1.20
5.76
8.98
27.3
107.0258.0
0.00725
0.0127
0.02380.0576
0.0871
0.162
0.368
0.443
0.6740.965
1 .063
2.0 kmol
313.2
373.2
m- a (2.0 mol
1010.0
2260.0
0.74516.43
29.0772.53
146.9266.3
483.31020
1550
dm- a )
1 .489
1.906
0.0290.156
0.2030.357
0.474
0.660
0.846
1 .076
1 .256
Concentration of methyldiethanolamine =
298.2 0.00593 0.000960
0.0180 0.01710.114 0.0446
0.195 0.0611
0.464 0.0972
0.603 0.106
36.9 0.780
88.8 0.921
4.28 kmol
298.2
m- a (4.28
296.0
476.0
765.0
1060.0
1370.0
1670.0
1830.0
1960.0
mol dm- a )
1.088
1 .1731.273
1 .373
1 .506
1 .5881 .686
1.699
COMPONENTS:
Hydrogen Sulfide in Aqueous Solvents
ORIGINAL MEASUREMENTS:
111
1. Hydrogen sulfide; H2S;[ 7783-06-4]
2. Water; H20; [7732-18-5]3. 2,2'-(Methylimino)bisethanol
(methyldiethanolamine);CSH13N02; [105-59-9]
EXPERIMENTAL VALUES:
Jou, F-Y.; Mather, A.E.; otto, F.D.
Ind.Eng.Chem.Process Des.Dev.1982, 21, 539 - 544.
Concentration of methyldiethanolamine (MDEA) = 4.28 kmol m- 3(4.28 mol dm- 3 )
T/K
313.2
343.3
0.003140.005020.007140.01020.03870.2711.428.71
28.5107.0500.0949.0
1540.02140.02360.02800.0*
0.001300.002740.004510.007140.009850.353
16.823.7
132.0528.0
Mole ratioin liquidH2S/MDEA
0.005080.005800.007340.008050.01650.04460.1030.2680.4990.8491 .0831 .2101 .3691 .5201 .5761 .7230.001290.001770.002580.003110.003670.02530.1880.2330.5490.953
T/K
343.2
373.2
393.2
1420.02530.03460.04120.04990.0*
0.04170.1330.3831 .66
26.1240.0765.0
1690.02300.03630.04720.05680.0
0.34225.1
252.01130.02510.03400.04690.05390.05840.0
Mole ratioin liquidH2S/MDEA
1 .1631 .3551 .5211 .6161.7270.004340.007630.01420.03050.1300.4350.7631 .0041 .1041.2721 .4091 .5180.009500.08950.3030.6770.9691 .0841 .2211 .2851 .328
* Liquid H2 S phase present.
112 Hydrogen Sulfide in Aqueous Solvents
COMPONENTS:
1. Hydrogen sulfide; H2S;[7783-06-4]
2. 2,2' ,2"-Nitri1otrisethano1,(Triethanolamine); C6H1SN03;[i02-71-6]
3. Water; H2 0; [7732-18-5]
VARIABLES:
Temperature, pressure, composition
ORIGINAL MEASUREMENTS:Atwood, K.; Arnold, M. R.;Kindrick, R. C.
Ind. Eng. Chern. 1957, 49, 1439-44.
PREPARED BY:
C. L. Young
EXPERIMENTAL VALUES:
T/KWt-%amine P/mmHg P/kPa
~Mole ratio
299.8 80 15 1. 31 0.175 0.0404 0.0395241 32.1 0.539 0.531
322.0 120 0.00424 0.000565 0.000795 0.0007764.19 0.559 0.0396 0.0387
115 15.3 0.264 0.259333.1 140 20 5.66 0.755 0.0446 0.0324
624 83.2 0.562 0.412310.9 100 30 0.568 0.0757 0.0261 0.0124
55.3 7.373 0.315 0.151333.1 140 0.0222 0.00296 0.00224 0.00107
624 83.2 0.714 0.345299.8 80 50 0.655 0.0873 0.0381 0.0106
22.9 3.05 0.265 0.0739242 32.3 1.105 0.313
322.0 120 0.00295 0.000393 0.000976 0.00027157.2 7.63 0.297 0.0829
693 92.4 1.179 0.334
t Mole of hydrogen sulfide per mole of amine.
AUXILIARY INFORMATION
METHOD/APPARATUS/PROCEDURE:
Gas saturation method was used in
which a known quantity of hydrogen
was passed through a series ofsaturators containing a solution of
known hydrogen sulfide concentration.
At partial pressures of H2S greater
than 100 mmHg, solution saturation
was used. H2 S in soln. determinedby iodimetry. Details in source.
SOURCE AND PURITY OF MATERIALS:
1. Stated purity 99.7 mole percent.
2. Analytical grade.
3. No details.
ESTIMATED ERROR:oT/K = ±0.12; op/kPa = ±2%;o (Mole ratio) = ±3% (estimated by
compiler) •
REFERENCES:
Hydrogen Sulfide in Aqueous Solvents 113
COMPONENTS:1. Hydrogen sulfide; H2S;
[7783-06-4]2. Water; H20; [7732-18-5]3.2,2' ,2"-Nitrilotrisethanol,
(triethanolamine); C6H1SN03;[102-71-6]
ORIGINAL MEASUREMENTS:
Jou, F-Y.; Mather, A.E.; otto, F.D.
Can.J.Chem.Eng. 1985, 63, 122-125.
(Numerical data deposited in theDepository for gnpublished Data,Ottawa, Canada)
VARIABLES:Temperature, pressure, composition
of liquid phase.
PREPARED BY:P.G.T. Fogg
EXPERIMENTAL VALUES:
Conc. T/K
of TEA
/mol dm- 3
Total
pressure
/kPa
Mole ratio
in liquid
H2S/TEA
2.0
2.0
298.2
323.2
0.02670.1841 .1 04.81
42.2263720
14801980
0.06830.275
22.6340885
181027003420
403303348438752266723
14852030
483417542352901
183827203431
0.01640.04120.1020.2080.5260.9951 .3501 .7511 .989
0.01330.02840.2580.8361 .1641 .5271 .8281 .993
TEA = triethanolamine
*Depository for Unpublished Data, CISTI, National Research Council ofCanada, Ottawa, Ontario, K1A OS2, Canada.
AUXILIARY INFOR}~TION
2. distilled.
SOURCE AND PURITY OF MATERIALS:
1. from Linde & Matheson;purity > 99%
3. from Fisher Scientific;purity 99.4%
(authors)
REFERENCES:
1. Ruska, W.E.A.; Hurt, L.J.;Kobayashi, R. Rev.Sci.lnstrum.1970, 41, 1444.
ESTIMATED ERROR:
OT/K = ± 0.5
METHOD/APPARATUS/PROCEDURE:
The equilibrium cell consisted of aJerguson gauge (Model 19-T-20) witha 250 cm 3 tubular gas reservoirmounted at the top. Gas wascirculated with a magnetic pump (1)Temperatures were measured bythermopiles and controlled to± 0.5 K by a air-bath. Pressureswere measured by a Heise bourdontube gauge. The cell was chargedwith TEA solution and H2S to thedesired pressure. If necessarynitrogen was added to ensure thatthe total pressure was aboveatmospheric. Gases were circulatedfor at least 8 h. The gas phasewas analysed by gas chromatography.H2S in the liquid phase wasdetermined by iodimetry and amineby titration with H2S04.
HS05-E
114 Hydrogen Sulfide in Aqueous Solvents
COMPONENTS: ORIGINAL MEASUREMENTS:
1 • Hydrogen sulfide; H2S;[7783-06-4) Jou, F-Y.; Mather, A.E.; Otto, F.D.
2. Water; H2O; [ 7732-18-5)3. 2,2' ,2"-Nitrilotrisethanol Can.J.Chem.Eng. 1985, 63, 122-125.
(triethanolamine); C6H1SN03;[102-71-6)
EXPERIMENTAL VALUES:
Cone. T/K PHzS
Total Mole ratio
of TEA /kPa pressure in liquid
/mol dm- 3 /kPa H2S/TEA
2.0 348.2 0.0238 480 0.004020.821 442 0.02378.54 487 0.0813
197 233 0.4311010 1045 0.9602250 2286 1 .3614110 4162 1.7765500 5562 2.076
2.0 373.2 0.0172 387 0.002050.0585 343 0.003280.590 528 0.01251 .35 425 0.01934.88 490 0.0401
72.7 410 0.176708 800 0.620
3120 3231 1.3344940 5052 1 .6516160 6272 1 .912
2.0 398.2 0.0466 492 0.001740.095 490 0.002200.383 501 0.004641 .45 452 0.0114
11. 4 480 0.036165 391 0.203
1730 1955 0.7603550 3775 1 .1535190 5417 1 .4656270 6505 1.627
3.5 298.2 0.0124 334 0.00700.219 478 0.0256
16.0 287 0.242299 320 0.881729 732 1 .161
1500 1504 1 .4931984 1988 1.670
3.5 323.2 0.00832 349 0.002360.33 358 0.01633.40 314 0.0638
35.2 499 0.224466 478 0.780
1740 1759 1.2292500 2508 1.4043430 3436 1 .641
3.5 348.2 0.0281 344 0.002410.372 473 0.0107
12.5 409 0.074657.8 485 0.172
494.0 528 0.5092000 2042 1 .0223270 3306 1 .2814290 4329 1.5065530 5568 1 .714
Hydrogen Sulfide in Aqueous Solvents 115
COMPONENTS: ORIGINAL MEASUREMENTS:
1. Hydrogen sulfide; H2 S;[ 7783-06-4] Jou, F-Y.; Mather, A.E.; Otto, F.D.
2. Water; H2 O; [7732-18-5]3. 2,2',2"-Nitrilotrisethanol, Can.J.Chem.Eng. 1985, 63, 122-125.
(triethanolamine); C6H1SN03;[102-71-6]
EXPERIMENTAL VALUES:
Cone. T/K PH2S Total Mole ratio
of TEA /kPa pressure in liquid
/mol dm- 3 /kPa H2 S/TEA
3.5 373.2 0.0418 442 0.001541.09 452 0.00975
19.1 489 0.0485329 412 0.274
1730 1811 0.7103020 3122 0.9924690 4797 1 .2245910 6024 1 .382
3.5 398.2 0.0183 453 0.005450.886 511 0.00498
10.3 652 0.0224137 344 0.101
1190 1402 0.4163570 3786 0.8445440 5648 1 .098
5.0 298.2 0.0171 349 0.005140.201 452 0.02022.30 509 0.0739
66.8 473 0.406312.0 314 0.798
1090.0 1100 1 .2851580.0 1579 1 .4401990.0 1997 1 .600
5.0 323.2 0.0315 344 0.003760.995 479 0.02439.97 427 0.0842
361 .0 369 0.5671660.0 1686 1 .1352760.0 2769 1 .4323430.0 3444 1 .587
5.0 348.2 0.0152 290 0.000990.158 492 0.003862.13 321 0.0167
73.9 325 0.133279.0 693 0.296
1340.0 1370 0.7014060.0 4092 1 .2905490.0 5526 1 .566
5.0 373.2 0.0269 403 0.000690.381 487 0.002986.07 476 0.0160
324.0 393 0.1781100.0 1170 0.4214050.0 4126 0.9225450.0 5519 1 .097
5.0 398.2 0.0872 438 0.000741.84 496 0.0045645.7 513 0.0354296.0 469 0.128
2480.0 2657 0.4835450.0 5622 0.782
116 Hydrogen Sulfide in Aqueous Solvents
COMPONENTS:
1. Hydrogen sulfide; H2S;
[7783-06-4]
2. 1,1'-Iminobis-2-Propanol,(Diisopropanolamine); C6H1SN02;[110-97-4]
3. Water; H20; [7732-18-5]
ORIGINAL MEASUREMENTS:
Isaacs, E.E.; Otto, F.D. Mather, A.E.
J. Chem. Engng. Data. 1977, 22, 71-3.
VARIABLES: PREPARED BY:
Temperature, pressure, composition C.L. Young.
EXPERIMENTAL VALUES: T/K Cone. of 2 /mol dm- 3 P/kPa 0
313 .15 2.5 2152.5 1.4141199.6 1.215
903.2 1.092450.9 0.962179.9 0.824
97.2 0.75073.7 0.72872.3 0.70647.5 0.67127.5 0.56222.7 0.47315.8 0.409
9.6 0.3496.8 0.2892.0 0.132
373.15 2.5 3207.4 1. 2492209.7 1.100
880.4 0.849462.6 0.651211.6 0.478155.8 0.388
82.7 0.30050.4 0.22131. 6 0.17638.1 0.16712.1 0.098
o = mole ratio in liquid phase H2S/Diisopropanolamine.
AUXILIARY INFORMATION
METHOD/APPARATUS/PROCEDURE: SOURCE AND PURITY OF MATERIALS:
Recirculating vapor flow apparatuswith Jerguson liquid level gaugecell and magnetic pump. Nitrogenadded to vapor to increase pressureto at least 600 kPa. Vapor analysed No details given.by gas chromatography. Partialpressure of hydrogen sulfide calcul-ated from pressure and composition.Liquid samples passed into sulfuricacid. Hydrogen sulfide collected inburet.
ESTIMATED ERROR:oT/K = ±0.5; oP/kPa = ±l%; 00 = ±4%or ±0.02 whichever is greater.
REFERENCES:
COMPONENTS:
Hydrogen Sulfide in Aqueous Solvents
ORIGINAL MEASUREMENTS:
117
1. Hydrogen sulfide; H2S;[7783-86-4]
2. Water; H20; [7732-18-5]3. 1,1 '-iminobis-2-propanol,
(diisopropanolamine); C6H1SN02;[110-97-4]
4. Tetrahydrothiophene, 1,1-dioxide,(sulfolane); C~H802S; [126-33-0]
VARIABLES:
Temperature, concentration
EXPERIMENTAL VALUES:
Isaacs,.E.E; Otto, F.D.;Mather, A.E.
J. Chem. Eng. Data 1977, 22,317-319.
PREPARED BY:
P.G.T. Fogg
The solvent consisted of 40 wt% of diisopropanolamine (DIPA), 40 wt%of sulfolane and 20 wt% of water. The authors indicated that this is atypical Sulfinol solution as used in the Sulfinol process patented byShell.
T/K
313.2 4.65.2
13.820.325.355.9
277 .6502.3585.3865.6
1081 .91410.32051.22291 .3
Mole ratioin liquidH2S/DIPA
0.1520.1750.2970.3080.4240.5820.9011 .0911 .1731 .4921.5982.0223.3394.429
T/K
373.2 63.776.471.7
165.0262.1419.5658.7
1122.61748.82405.93862.3
Mole ratioin liquidH2S/DIPA
0.0740.0830.1190.1500.2430.3520.5100.7330.9291 .2831 .988
AUXILIARY INFORMATION
METHOD/APPARATUS/PROCEDURE:
The equilibrium cell consisted of aJerguson gage with a 250 cm 3
tubular gas reservoir mounted atthe top. Gas was circulated with amagnetic pump (1). Temperatureswere measured by thermopiles andcontrolled to ± 0.5 °C by anair-bath. Pressures were measuredby a Heise bourdon tube gage. Thecell was purged with nitrogen andcharged with 50-150 cm 3 of Sulfinolsolution. An appropriate quantityof hydrogen sulfide was then added.Nitrogen was added, when necessary,to ensure that the total pressurewas above 350 kPa. Gases werecirculated for at least 8 h. Thegas phase was analysed by gaschromatography and the liquid phaseby treating samples with H2S0~
(2.5 mol dm-3), recording P-V-Tdata for the gases evolved andanalysing them by gaschromatography.
SOURCE AND PURITY OF MATERIALS:
3. minimum purity 97%
4. minimum purity 99%
ESTIMATED ERROR:
oT/K = ± 0.5omole ratio = ± 0.02 or ± 4%whichever is the larger.(authors)
REFERENCES:
1. Ruska, W.E.A.; Hurt, L.J.;Kobayashi, R.
Rev. Sci. Instrum. 1979, 41,1444.
118 Hydrogen Sulfide in Aqueous Solvents
COMPONENTS:
1. Hydrogen sulfide; H2S;[ 7783-06-4]
2. Carbon dioxide; CO 2 ; [124-38-9]3. Water; H20; [7732-18-5]4. 2-Aminoethanol;
(monoethanolamine); C2H7NO;[141-43-5]
VARIABLES:
Temperature, pressure, compositionof liquid phase
ORIGINAL MEASUREMENTS:
Leibush, A.G.; Shneerson, A.L.
Zhur. Prik. Khim. 1950, 23, 145-152.J. Applied Chem. USSR 1950,23, 149-157.
PREPARED BY:P.G.T. Fogg
EXPERIMENTAL VALUES:
Concentration of monoethanolamine (MEA) = 2.5 mol dm- 3; T/K = 298.2
Mole ratios in liquid phaseH2S/MEA CO 2 /MEA
1 .94 0.00 0.265 0.025
2.78 0.00 0.265 0.092
4.1 0.00 0.270 0.155
7.15 0.26 0.268 0.255
20.2 1.77 0.262 0.311
70.4 75 0.262 0.385
0.69 0.00 0.145 0.029
2.08 0.00 0.145 0.216
3.62 0.26 0.145 0.300
19.8 4.57 0.145 0.416
760 mmHg = 1 atm = 1.01325 bar
AUXILIARY INFOR}~TION
METHOD/APPARATUS/PROCEDURE:
N2 or a mixture of N2 & H2 S waspassed successively through twoabsorbers containing H2S & C02dissolved in an aqueous solution ofMEA. The H2S in the emerging gaswas passed into cadmium or zincacetate solution and theprecipitated sulfides estimated byiodimetry. Hydrogen sulfide in theMEA solutions was also determined byiodimetry. CO 2 in the gas phase wasabsorbed in standard baryta solutionafter removal of H2S by acidifiedpotassium permanganate solution.CO 2 in the liquid phase wasestimated by reaction with 30%H2S0 4 , removal of evolved H2S bypermanganate and absorption ofevolved C02 in standard barytasolution.
SOURCE AND PURITY OF MATERIALS:
1. From H2S0 4 & Na2S: no S02detected
4. Contained 0.6 to 1.5 volumes ofC02 per unit volume ofsolution; less than 1% byweight of total impurities.
ESTIMATED ERROR:
6T/K = ± 0.1 (authors)
REFERENCES:
Hydrogen Sulfide in Aqueous Solvents 119
COMPONENTS:
1. Hydrogen sulfide; H2S;[ 7783-06-4]
2. Carbon dioxide; CO 2 ; [124-38-9]3. Water; H20; [7732-18-5]4. 2-Aminoethanol, (monoethanol
amine); C2H7NO; [141-43-5]
VARIABLES:
Temperature, pressure, compositionof liquid phase.
EXPERIMENTAL VALUES:
ORIGINAL MEASUREMENTS:
Muhlbauer, H.G.; Monaghan, P.R.
Oil & Gas J. 1957, 55(17), 139-145.
PREPARED BY:P.G.T. Fogg
T/K Cone. of MEA PH 2 S PC02
Mole ratio in liquid
/mol dm- 3 /mmHg /mmHg H2S/MEA C02/MEA
298.15 2.52 0.09 0.16 0.112 0.1002.60 0.48 0.52 0.022 0.3332.56 0.82 0.24 0.038 0.3092.50 0.99 0 0.196 02.53 1.18 0.10 o.114 0.1742.49 1 .26 0 0.272 02.62 1 .27 0.40 0.043 0.3472.55 1.81 0.36 0.074 0.3042.63 1 .88 0.70 0.066 0.3482.53 1 .94 0.21 0.146 0.1742.51 2.23 0 0.308 02.53 2.49 0.16 0.226 0.1002.50 3.37 0 0.323 02.59 3.38 13.0 0.019 0.4872.54 4.15 0.47 0.120 0.3022.53 4.23 0.23 0.220 0.175
MEA = monoethanolamine 760 mmHg = 1 atm = 1.01325 bar
AUXILIARY INFORNATION
SOURCE AND PURITY OF NATERIALS:METHOD/APPARATUS/PROCEDURE:
Data for 25°C were obtained by
passing a mixture of N2' C02 & H2S
through two thermostatted
wash-bottles in series containing
monoethanolamine plus dissolved C02
& H2S. After 4 h liquid samples
were analysed by chemical methods
and gas samples by chromatography.
Data for 100°C were obtained by
agitating gas and liquid samples in
a thermostatted steel bomb for about
1 h before analysis of the two
phases.
ESTINATED ERROR:oT/K = ± 0.02
REFERENCES:
(authors)
120
COMPONENTS:
Hydrogen Sulfide in Aqueous Solvents
ORIGINAL MEASUREMENTS:
1. Hydrogen sulfide; H2S;[7783-06-4]
2. Carbon dioxide; CO 2 ; [124-38-9]3. Water; H20; [7732-18-5)4. 2-Aminoethanol, (monoethanol
amine); C2H7NO; [141-43-5]
EXPERIMENTAL VALUES:
Muhlbauer, H.G.; Monaghan, P.R.
Oil & Gas J. 1957, 55(17), 139-145.
T/K Cone. of MEA
!mol dm- 3
Mole ratio in liquid
H2S!MEA C02!MEA
298.15 2.522.622.602.532.472.532.632.592.552.512.622.442.592.522.512.582.532.542.462.522.632.582.512.502.452.532.562.622.522.532.522.612.422.492.532.492.422.522.612.562.422.522.532.492.492.472.41
4.404.806.07.417.677.88.39.28
10.911 .413.916.517.317.427.028.029.230.431 .036.038.747.652.252.853.255.659.565.268.692.793.8
109.4111140142163165.2166.2172230306330340342443711720
0.151 .060.600.31o0.341 .70
19.50.780.272.6o
24.40.290.46
33.52.277.50o1 .06
49.247.5
1 .130.82o
13.834.166.8
8.6132.411 .4
104o2.76
19.99.31o
55.4157
83.8o
62.494.219.616.020.4o
0.2800.0900.1550.3720.4500.2840.1120.0360.1850.4490.1340.5970.0570.3840.5430.0750.2560.1710.7060.4510.0920.0980.4880.6140.7860.2140.1420.1170.2890.2340.3360.1380.8660.6840.3640.5560.9130.2660.1700.3000.9340.4030.3830.6140.7420.8200.939
0.1040.3560.2860.108o0.1720.3520.4720.2960.1050.346o0.4450.1650.0980.4470.2900.357o0.1800.4640.4300.1720.112o0.3580.4100.4710.3070.3640.2920.460o0.1120.2860.181o0.3570.4560.350o0.2800.3170.1670.1040.108o
COMPONENTS:
Hydrogen Sulfide in Aqueous Solvents
ORIGINAL MEASUREMENTS:
121
1. Hydrogen sulfide; H2S;[ 7783-06-4]
2. Carbon dioxide; CO 2 ; [124-38-9]3. Water; H20; [7732-18-5]4. 2-Aminoethanol, (monoethanol
amine); C2H7NO; [141-43-5]
EXPERIMENTAL VALUES:
Muhlbauer, H.G.; Monaghan, P.R.
Oil & Gas J. 1957, 55(17), 139-145.
T/K Cone. of MEA
/mol dm- 3
Mole ratio in liquid
H2S/MEA CO 2/MEA
373.15
HSD&-E'
2.452.442.442.472.432.452.452.442.452.442.442.452.442.392.432.402.442.432.422.442.442.432.442.392.402.442.432.422.442.432.392.392.422.432.432.432.402.392.422.422.422.422.422.422.402.422.392.402.422.412.412.372.392.402.402.402.382.392.40
9.222.624.834.450.752.560.975.376.385.38790
111118123.8129136139151170195204219224228239241260263269316319324360373397403410420447466470518525540545564632638644700742760804833899947952964
o9.1o
46214.222.826.190.7
50030.310.3o
28918.1o
49.2104.5
37.714 .5
566o
690125
24.574.9
388451924
o42828.684.5
1290179565568
42.4109.0
oo
237643
o740
52.6829155
57.1312
o385
63169
o168
o77 .0o
551
0.0600.0750.1020.0230.1270.1080.1130.0930.0430.1460.1880.2480.0790.2240.2940.1770.1410.1960.2620.0810.3720.0900.1870.2990.2360.1390.1260.0990.4200.1440.3810.2860.1060.2520.1690.1770.4120.3260.4910.5110.2750.1910.5460.1980.4530.1930.3750.4890.3060.5780.3080.5320.4220.6390.4440.6490.5490.6600.342
o0.076o0.4240.0720.1550.1560.2510.4130.1580.076o0.3440.084o0.1670.2440.1530.0740.385o0.3980.2300.0750.1680.3250.3510.408o0.3310.0730.1710.4220.2290.3280.3210.0810.172oo0.2340.324o0.3330.0820.3390.1690.0830.239o0.2460.0730.156o0.146o0.076o0.241
122 Hydrogen Sulfide in Aqueous Solvents
COMPONENTS:1. Carbon dioxide; CO 2 ; [124-38-9]
2. Hydrogen sulfide; H2S;[7783-06-4]
3. 2-Aminoethano1 (Monoethano1amine);C2H,N02; [141-43-5]
4. water; H20; [7732-18-5]
VARIABLES:
Temperature, pressure
ORIGINAL MEASUREMENTS:
Jones, J. H.; Froning, H. R.;
Claytor, E. E. Jr.
J. Chern. Engng. Data
1959, 4, 85-92.
PREPARED BY:
C. L. Young
EXPERIMENTAL VALUES:
§ 5T/K P
H2s/10 Pa
313.15 0.00150.00280.00290.00690.00720.00760.00770.01010.01160.01170.02030.02240.02610.05730.07440.10190.1440.156
0.00190.00410.00250.01790.01770.00330.00720.00190.5790.05760.03490.01000.6070.02370.00400.01040.0247'0.0608
Cone. of MEA/wt%
15.3
(cant. )
t tct H2 S ct CO2
0.0164 0.3870.0214 0.4240.0282 0.4000.0248 0.4800.0272 0.4720.0612 0.3920.0436 0.4360.101 0.3490.0056 0.6520.0199 0.5270.0488 0.4880.106 0.4120.0123 0.6580.149 0.4240.361 0.2000.351 0.2930.314 0.3350.235 0.415
partial pressure of hydrogen sulfide
partial pressure of carbon dioxide
AUXILIARY INFORMATION
METHOD/APPARATUS/PROCEDURE:
Rocking static equilibrium cell
fitted with liquid and gas sampling
ports. Pressure measured with
Bourdon gauge. Concentration of
carbon dioxide and hydrogen sulfide
in gas phase determined by mass
spectrometry. Concentration of
hydrogen sulfide in liquid deter
mined by iodimetry and concentration
of carbon dioxide in liquid deter
mined by precipitation as barium
carbonate or by stripping out carbon
dioxide and reabsorbing on a solid
absorbent. Details in source.
SOURCE AND PURITY OF MATERIALS:
1. Bone dry sample.
2. Purity 99.9 mole per cent. Massspectrometry showed trace amountsof methyl mercaptan, carbon disulfide and carbon dioxide.
3. Purity 99.3 mole per cent.
4. Distilled.
ESTIMATED ERROR:
oT/K = ±0.1 at 313.15 K, ±0.5 at413.15 K; oP/kPa = ±1%; oct = ±3%(estimated by compiler).
REFERENCES:
Hydrogen Sulfide in Aqueous Solvents 123
COMPONENTS: ORIGINAL MEASUREMENTS:
1. Carbon dioxide; CO2; [124-38-9] Jones, J. H. ; Froning, H. R. ;
2. Hydrogen sulfide; H2S; Claytor, E. E. Jr.[7783-06-4] J. Chern. Engng. Data
3. 2-Aminoethano1 (Monoethano1amine) ; 1959, 4, 85-92.C2H7N02 ; [141-43-5]
4. Water; H2O; [7732-18-5]
EXPERIMENTAL VALUES:
T/K P§H2s/105pa p§ co/10Spa Cone. of MEA t t/wt%
ex H2S ex CO 2
313.15 0.171 0.696 15.3 0.0712 0.6200.175 0.709 0.0716 0.6200.449 0.197 0.327 0.4141.123 0.470 0.425 0.4061. 879 0.771 0.495 0.398
333.15 0.0013 0.0143 0.0074 0.4060.0069 0.0037 0.0597 0.2900.0079 0.0011 0.107 0.1660.0136 0.580 0.0070 0.5940.0192 0.173 0.0200 0.5290.0292 0.0559 0.0569 0.4520.0309 0.0189 0.0878 0.3810.0953 0.0128 0.255 0.2740.1069 1.004 0.0396 0.6060.528 0.499 0.238 0.4601. 995 4.672 0.235 0.570
373.15 0.0037 0.0765 0.0053 0.2930.0069 0.429 0.0050 0.4200.0093 0.0173 0.0272 0.1710.0205 0.375 0.0140 0.4120.0341 0.0791 0.0460 0.272 .0.0500 0.760 0.0245 0.4560.0765 0.0403 0.112 0.1800.199 0.1033 0.178 0.2380.373 0.853 0.140 0.4050.623 0.131 0.366 0.175
393.15 0.0088 0.437 0.0059 0.3220.0135 0.010 0.0405 0.03930.0197 0.0385 0.0344 0.1060.0204 0.0884 0.0264 0.1780.0524 0.381 0.0361 0.2980.0972 0.188 0.104 0.2020.1033 0.205 0.104 0.2000.144 0.421 0.0940 0.280
t = mole H2S/mo1e 2-Aminoethanolex H2 S
t = mole CO 2/mole 2-Aminoethano1ex CO2
MEA = 2-Aminoethanol (monoethano1amine)
124 Hydrogen Sulfide in Aqueous Solvents
COMPONENTS:
1. Carbon dioxide; CO 2 ; [124-38-9]
2. Hydrogen sulfide; H2S;[7783-06-4]
3. 2-Aminoethano1 (Monoethano1amine);C2H7N02; [141-43-5]
4. Water; H20; [7732-18-5]
ORIGINAL MEASUREMENTS:
Jones, J. H.; Froning, H. R.;
Claytor, E. E. Jr.
J. Chern. Engng. Data
1959, 4, 85-92.
EXPERIMENTAL VALUES: Smoothed data for 15.3 wt% of MEA
Moles H2S per Mole MEA
R *L= 0.01 RL = 0.05 RL = 0.10 RL = 0.50
13
1030
100300
1000
13
1030
100300
1000
0.00470.00550.00660.00770.0092
0.00370.00460.00590.00740.0092
0.01900.02250.02630.03010.03510.03990.0464
0.01450.01840.02340.02880.03550.0431
T/K =0.03270.03950.04680.05400.06190.07100.0830
T/K =
0.02370.03040.03960.04920.06050.07300.0910
313.15
0.08630.11600.15100.18200.21200.23500.2700
333.15
0.06500.08450.11250.14500.18400.21900.2620
0.11400.16300.22200.27200.32600.37200.4250
0.07750.11300.16000.21200.27500.32300.3840
0.1280.2120.3740.5790.8020.9311. 00
0.0850.1370.2400.3860.6000.7900.970
0.0290.0500.0910.1600.2790.4390.680
0.0120.0250.0560.1010.1820.3120.520
0.00880.01840.03930.07500.14000.23250.4050
0.02470.04070.06750.10400.16500.24300.3340
373.15
0.02200.03400.05400.08100.12500.18000.2480
= 413.15
0.00720.01460.03120.05900.10750.18000.3120
T/K0.00400.00780.01630.03080.05580.0935
T/K =
0.01030.01550.02390.03490.05240.0762
0.00310.00590.01200.02280.0424
0.00670.01010.01550.02280.03430.0503
0.00160.00300.00590.0110
0.00240.00360.00560.0082
13
1030
100300
1000
13
1030
100300
1000
§PH2 S partial pressure of hydrogen sulfide
Hydrogen Sulfide in Aqueous Solvents 125
COMPONENTS:1. Carbon dioxide1 ~021 [124-38-9]
2. Hydrogen sulfide: H2S:[7783-06-4]
3. 2-Aminoethano1 (Monoethano1amine):C2H,N02: [141-43-5]
4. Water1 H201 [7732-18-5]
ORIGINAL MEASUREMENTS:Jones, J. H.'1 Froning, H. R.1
Claytor, E. E. Jr.
J. Chern. Engng. Data
1959, 4, 85-92.
EXPERIMENTAL VALUES: Smoothed data for 15.3 wt% of MEA
Moles H2S per Mole MEA
~* = 0.01 RV = 0.05 ~= 0.10 ~= 0.50 ~= 1.0 ~= 10 ~= 00
13
1030
100300
1000
13
1030
100300
1000
13
1030
100300
1000
13
1030
100300
1000
0.00130.00220.00390.00640.01070.0167
0.00190.00290.00440.00660.0102
0.00170.00300.00560.00980.0176
0.00130.00260.00560.0110
0.00350.00570.01000.01660.02790.04300.0625
0.00490.00740.01150.01750.02720.0410
0.00340.00610.01140.02000.03600.0585
0.00240.00500.01070.02100.0429
T/K0.00500.00840.01490.02500.04150.06380.0920
T/K0.00700.01080.01720.02600.04050.06100.0940
T/K0.00460.00820.01550.02700.04830.0780
T/K0.00310.00650.01400.02780.05730.1010
= 313.15
0.01200.02080.03800.06300.10500.15500.2170= 333.15
0.01720.02600.04140.06210.09800.14800.2170
= 373.15
0.00950.01630.03010.05250.09450.15100.2250
= 413.15
0.00580.01220.02650.05350.11100.18500.3000
0.01780.03000.05400.09100.15100.22000.3050
0.02390.03630.05650.08500.13600.20400.2900
0.01180.02070.03810.06650.12000.19100.2880
0.00780.01600.03520.07050.13800.22500.3630
0.05000.08250.14500.24000.39000.55000.7300
0.06430.09400.14200.20800.31400.43200.5500
0.02240.03900.07200.12600.22500.37000.5820
0.01150.02450.05200.09800.18000.30200.5000
0.1280.2120.3740.5790.8020.9311. 00
0.0850.1370.2400.3860.6000.7900.970
0.0290.050 .0.0910.1600.2700.4390.680
0.0120.0250.0560.1010.1820.3120.520
§PH2 S partial pressure of hydrogen sulfide
§p partial pressure of carbon dioxideC02
~* PH2S/PC02
126 Hydrogen Sulfide in Aqueous Solvents
COMPONENTS:
1. Carbon dioxide; COz; [124-38-9]2. Hydrogen sulfide; HzS;[7783-06-4]3. 2-Aminoethano1,
(Monoethano1amine);CzH7NO;[141-43-5]
4. Water; HzO; [7732-18-5]
VARIABLES:
Temperature,pressure,composition
ORIGINAL MEASUREMENTS:
Lee, J.I.; Otto, F.D.; Mather, A.E.
J. Chern. Eng. Data. 1975, 20.161-163.
PREPARED BY:
C.L. Young
EXPERIMENTAL VALUES: Solubility of HbS-COzMixtures in 5.0 mol dm-3
Monoet anolamine aT/K PHzs/kPa Peo/kPa HzS/MEA COz/MEA
313.15 622.8 3.1 0.962 0.014588.4 3.0 0.923 0.014757.0 20.5 0.887 0.0459883.9 46.2 0.801 0.0868961. 8 92.4 0.758 0.134
1064.5 137.9 0.729 0.1641150.7 179.3 0.716 0.1941254.8 246.1 0.680 0.2361423.7 470.2 0.631 0.3021611. 3 710.1 0.584 0.3661634.0 1213.5 0.505 0.4301730.6 1729.9 0.438 0.5221489.3 3564.6 0.276 0.7491372.0 4226.4 0.215 0.799
384.0 952.2 0.150 0.640418.5 1200.4 0.139 0.670457.1 1402.4 0.128 0.688589.5 1890.5 0.110 0.715456.4 5332.4 0.052 0.894180.6 189.6 0.259 0.431379.9 193.7 0.243 0.492451.6 337.2 0.220 0.535324.0 297.9 0.157 0.602157.2 568.1 0.077 0.680168.2 857.7 0.068 0.698
AUXILIARY INFORMATION
METHOD/APPARATUS/PROCEDURE:
Recirculating vapor flow apparatuswith Jerguson liquid level gauge andmagnetic pump,nitrogen added to vaporto increase pressure to at least 200kPa. Vapor analysed by gas chromatography. Partial pressure of carbondioxide and hydrogen SUlfide calculated from pressure and vapor pressureof monoethano1amine. Liquid samplespassed into sulfuric acid. Carbondioxide and hydrogen sulfide collected in buret and then analysed by gaschromatography.
SOURCE AND PURITY OF MATERIALS:1. Purity 99.7 mole per cent.
2. Purity 99.9 mole per cent.
3. Purity 99.5 mole per cent.
4. Distilled.
Nitrogen used as carrier, purity99.99 mole per cent.
ESTIMATED ERROR:oT/K = ±0.5; oP/kPa = ±l%;
oa = ±3-5%.
REFERENCES:
Hydrogen Sulfide in Aqueous Solvents 127
COHPONENTS: ORIGINAL MEASUREMENTS:
1. Carbon Dioxide; C02; [124-38-9] Lee, J.I.; Otto, F.D.; Mather, A.E.2. Hydrogen sulfide; H2S; [7783-06-4]3. 2-Arninoethanol, J. Chern. Eng. Data. 1975,20,161-163
(Monoethano1amine);C2 H7 NO ;[141-43-5]
4. Water; H20; [7732-18-5]
EXPERIMENTAL VALUES: Solubility of H2S-C02 Mixtures in 5.0 mol dm- 3
Monoethanolamine
T/K
313 .15 184.1243.4290.3261. 3216.5
9.921.925.2
153.1233.7278.5146.2157.9104.1
69.675.865.169.6
167.026.024.846.469.3
144.8152.4280.6516.4229.6433.7307.5313.7418.5617.1917.0
2104.32525.52054.62633.81390.72755.82922.7
70.3255.8314.4383.3
5.84.98.4
15.926.848.358.745.13.3
10.01.11.42.90.06.1
1206.62582.83473.64239.65359.3
437.1638.4890.127.265.897.939.343.826.219.117.614.212.315.2
3.10.350.620.741.21.37.0
56.26.3
27.99.2
29.368.3
215.8937.0994.2
1399.63397.03176.4
64.189.6
1219.01.9
27.456.9
126.20.90.650.762.05.0
15.521.921.2
2.611.2
0.130.330.60.061.5
0.0570.0430.0370.0290.0240.00440.00360.00270.3480.3560.3410.3040.2900.2630.2720.2490.3250.2590.3540.3660.5560.6310.6930.7640.7100.7160.6530.6640.6870.7330.5990.5220.4730.3480.5950.4390.3400.4160.9001. 0150.9000.5950.5370.5070.3980.3120.2160.2030.2150.2130.2090.2140.2200.0730.0490.1210.1160.1220.0000.097
C02!MEA
0.7400.8170.8570.9020.9410.6740.7460.7460.2940.3170.3320.3260.3340.3270.3390.3360.2450.3190.2830.1960.0530.0430.0370.0340.0400.0880.1670.1010.1380.0670.1410.2450.3220.5170.3980.5280.6800.6010.0900.0800.2500.1110.1810.2830.3380.1990.2560.3020.3250.3430.3760.4100.3650.4190.4780.2390.2810.3220.2180.388
128 Hydrogen Sulfide in Aqueous Solvents
COMPONENTS:
1. Carbon dioxide; C02; [124-38-9]2. Hydrogen sulfide; H2S; [7783-06-4]3. 2-Aminoethano1,
(Monoethano1aminel;C2 H7NO;[141-43-5]
4. Water; H20; [7732-18-5]
ORIGINAL MEASUREMENTS:
Lee, J.I.; Otto, F.D.; Mather,A.E.
J. Chern. Eng. Data. 1975,20,
161-163.
EXPERIMENTAL VALUES: -3Solubility of H2S-C02 Mixtures in 5.0 mol dm
Honoethano1amine.ex
T/K PH2S
/kPa PCo/kPa H2 S/ MEA C02!MEA
373.15 31.1 89.3 0.048 0.40831.6 123.3 0.039 0.42722.1 103.2 0.030 0.422
192.4 345.4 0.147 0.417251. 7 421. 3 0.152 0.433238.6 812.9 0.125 0.474211. 0 1392.0 0.086 0.532241. 3 2444.2 0.067 0.588241. 3 5564.0 0.040 0.686271. 0 32.5 0.375 0.194479.9 416.4 0.294 0.371618.4 1605.1 0.183 0.494613.6 3230.2 0.127 0.599553.6 5137.9 0.124 0.611527.4 68.9 0.472 0.173
1114.9 1246.6 0.358 0.4121030.8 4433.3 0.158 0.5871438.2 75.5 0.734 0.0791477.5 332.3 0.623 0.1871565.1 1320.3 0.402 0.3331406.5 5360.6 0.227 0.5172277.3 187.5 0.753 0.0912118.0 1058.3 0.571 0.2522096.0 1954.6 0.483 0.3522020.1 3802.4 0.350 0.4603301.9 62.1 0.884 0.0293501.1 639.1 0.808 0.1333416.3 1978.8 0.544 0.330
55.4 0.6 0.297 0.02848.7 1.1 0.289 0.03549.0 1.3 0.276 0.04466.3 4.4 0.274 0.118
107.6 19.3 0.276 0.2188.0 7.7 0.064 0.242
12.1 10.6 0.059 0.28740.3 70.9 0.063 0.398
141. 7 262.7 0.115 0.439trace 0.04 0.006 0.027
20.3 5.0 0.127 0.180
ex = Mole ratio in liquid phase.
Hydrogen Sulfide in Aqueous Solvents 129
COMPONENTS:
1. Carbon dioxide; C02; [124-38-9]2. Hydrogen sulfide; H2S;
[7783-06-4]3. Water; H20; [7732-18-5]4. 2-Aminoethanol, (Monoethanolamine)
C2H,NO; [141-43-5]
VARIABLES:
Temperature, pressure
ORIGINAL MEASUREMENTS:
Lawson, J.D.; "Garst, A.W.
J. Chern. Engng. Data, 1976, 21, 20
30.
PREPARED BY:
C.L. Young
EXPERIMENTAL VALUES: tT/K P H2s/ bar t
P co/bar Cone. ofMEA
/wt%
Liquid compomol/mol amine
H2S CO 2
298.15
313.15
333.15
373.15
393.15
0.0068 - 15.2 0.155 0.4130.193 0.031 0.303 0.3980.125 - 0.431 0.3211. 592 0.469 0.533 0.505
0.000055 - 0.0059 0.1740.00015 - 0.0135 0.1910.053 - 0.367 0.2331. 985 - 0.493 0.394
0.00023 - 0.0057 0.1760.0032 - 0.0064 0.3860.00071 - 0.0130 0.1911.212 1. 985 0.244 0.595
0.011 0.289 0.0054 0.3890.00081 - 0.0057 0.1670.00028 0.020 0.0073 0.1860.00017 - 0.0131 0.1940.023 0.040 0.0411 0.2330.033 - 0.0757 0.082
0.037 0.016 0.0545 0.06750.334 0.340 0.133 0.166
AUXILIARY INFORMATION
METHOD/APPARATUS/PROCEDURE: SOURCE AND PURITY OF MATERIALS:
ESTIMATED ERROR:oT/K = ±0.15 at 293K increasingto ±0.5 at 393K; oP/bar = ±0.5%(liquid camp) = ±3%.
Rocking equilibrium cell fitted with 1.liquid and vapor sampling valves. 2.Pressure measured with Bourdon gauge. 3.Cell charged with amine then gases 4.and methane added as an inert gas to"achieve the desired total pressure".Vapor phases analysed by massspectrometry. Liquid samplesanalysed by electrometric titration,details in source. Additionalanalytical methods were used for somesamples.
Purity 99.99 mole per cent.Purity 99.5 mole per cent.Distilled.Commercial sample purity betterthan 99 mole per cent as determined by acid titration.
REFERENCES:
130 Hydrogen Sulfide in Aqueous Solvents
COMPONENTS:
1. Carbon dioxide; C02; [124-38-9]2. Hydrogen sulfide; H2S; [7783-06-4]3. Water; H20; [7732-18-5]4. 2-Aminoethanol, (Monoethanolamine);
C2H7NO; [141-43-5]
EXPERIMENTAL VALUES:
ORIGINAL MEASUREMENTS:
Lawson, J.D. and Garst, A.W.
J. Chern. Engng. Data, 1976,21, 20-30.
T/K + + Cone. of Liquid compoP H2s/bar P co/barMEA mol/mol amine/wt% H2S CO 2
310.93 0.00005 - 30 0.0128 0.1190.086 - 0.197 0.3310.826 0.233 0.277 0.405
338.71 0.00017 - 0.0128 0.1130.213 - 0.205 0.3241.732 0.826 0.291 0.403
366.48 0.0043 - 0.0130 0.1160.626 - 0.196 0.3042.891 2.291 0.280 0.392
t partial pressure
COMPONENTS:
Hydrogen Sulfide in Aqueous Solvents
ORIGINAL MEASUREMENTS:
131
1. Hydrogen sulfide; H2S;[7783-06-4]
2. Carbon dioxide; C02; [124-38-9]3. Water; H20; [7732-18-5]4. 2-Aminoethanol (monoethanolamine)
C2H7NO ; [141-43-5]
VARIABLES:
Lee, J.I.; otto, F.D.; Mather,A.E.
Can. J. Chem. Eng. 1976, 54, 214-219.(Original data deposited in theNational Depository of UnpublishedData, Ottawa, Canada)*
PREPARED BY:
Temperature, pressure, composition P.G.T. Fogg
EXPERIMENTAL VALUES:
Concentration of monoethanolamine (MEA) = 2.5 kmol m- 3 (2.5 mol dm- 3)
T/K PH2S /kPa Pco/kPa Mole ratio in the liquidH2S/MEA CO 2/MEA
313.2 234 117 0.347 0.453740 234 0.689 0.339
1372 4385 0.253 1.030276 126.9 0.392 0.428
1241 2013 0.429 0.731760 4985 0.128 1.080
14.1 176.5 0.018 0.7311193 373.3 0.795 0.3151207 1882 0.502 0.673
712 5102 0.150 1.090636 5205 0.123 1.117256 2096 0.062 0.978122 241 .3 0.140 0.655327 135.8 0.498 0.37497.9 92.87 0.233 0.50737.7 29.85 0.170 0.494
4.18 4.25 0.061 0.47346.5 27.30 0.216 0.440
131 .7 18.27 0.539 0.216215.1 30.27 0.615 0.197
4.30 0.067 0.436 0.05312.76 0.096 0.570 0.04659.85 0.539 0.687 0.036
11 0.3 0.082 0.815 0.00497.0 141 .0 0.191 0.55280.7 137.9 0.181 0.562
191 .7 115.8 0.349 0.420242.7 98.6 0.468 0.355
1 .81 0.070 0.380 0.0450.335 0.000 0.181 0.0218.20 0.000 0.550 0.0437.39 0.000 0.'552 0.049
45.9 0.296 0.715 0.039
* National Depository of Unpublished Data, National Science Library,National Research Council, Ottawa, K1A OS2, Canada.
AUXILIARY INFORMATION
METHOD/APPARATUS/PROCEDURE
A windowed equilibrium cell wascharged with the solution undertest. CO 2 and H2S were added togive appropriate pressures asmeasured by a bourdon gage. Thevapor phase was circulated throughthe liquid by a magnetic pump.When equilibrium was reachedsamples of the liquid and gasphases were withdrawn and analysedas indicated in refs. (1) - (3).
SOURCE AND PURITY OF MATERIALS
3. distilled.4. commercial sample; purity 99.95%
ESTIMATED ERROR:oT/K = ± 0.5o(C02/MEA) ; O(H 2S/MEA) = ± 0.02 or
± 4%, whichever is the larger (authors)
REFERENCES:1. Lee, J.I.; otto, F.D.; Mather, A.E.
J. Chem. Eng. Data 1972, 17, 465.2. id. ib. 1973, 18, 7-1-.-3. id. Can.~Chem. Eng. 1974, 52, 125
132
COMPONENTS:
Hydrogen Sulfide in Aqueous Solvents
ORIGINAL MEASUREMENTS:
1. Hydrogen sulfide; H2S;[7783-06-4]
2. Carbon dioxide; C02; [124-38-9]3. Water; H20; [7732-18-5]4. 2-Aminoethanol (monoethanolamine)
C2H7NO; [141-43-5]
EXPERIMENTAL VALUES:
Lee, J.I.; otto, F.D.; Mather,A.E.
Can. J. Chem. Eng. 1976, 54, 214-219.(Original data deposited in theNational Depository of UnpublishedData, Ottawa, Canada)*
Concentration of monoethanolamine (MEA) = 2.5 kmol m- 3 (2.5 mol dm- 3)
T/K Mole ratio in the liquidH2S/MEA C02/MEA
313.2 66.956.625.5
276.157.554.61 4. 17.655.254.11
57.20.3331 .063.476.453.791.900.0000.0000.0000.0000.000
904.6213.029.03
4.162.840.2610.060
16.310.012.315.24
4.413.252.075.213.450.5370.723
202420352565255124131620
779.1758.4451 .6444.7173.7172.4589.5568.8452.3404.0377.1643.3717.0761 .9
0.2150.0960.000
145.121 .9
7.451.130.5480.6791 .1 2
12.70.0000.1801.816.62
17.08.81
16.19.385.140.4130.3797.6530.9160.0000.0000.0000.0000.0000.4130.2740.7922.580.5280.9791 .830.6230.5480.2100.1371 .241 .241.240.7850.0000.0000.0000.0000.0000.0000.0000.000
621 .911935219
191 .0189.6912.2
48304702
0.7800.7800.7110.4860.3130.4430.3580.3170.2730.1610.3660.1470.1440.1350.0910.0380.0250.0000.0000.0000.0000.0001 .0840.8630.7690.5380.4320.1620.0770.5450.4940.4290.3060.2120.1280.0900.2370.2260.1510.1461 .3661 .3511 .4931 .4411 .4821 .3201 .0961. 11 90.9940.9940.9120.9300.3990.2270.0150.4400.4550.3140.0950.115
0.0150.0110.0110.3490.3720.2550.2490.2480.2550.3610.3060.1120.2580.3840.4640.5490.5370.5690.5370.5220.3810.3880.0260.0120.0110.0110.0110.0050.0030.1210.1320.1930.3120.3230.4080.4370.2940.2840.2370.2380.0010.0010.0010.0010.0000.0000.0000.0000.0000.0000.0000.0000.5690.7791 .1620.4090.4150.6581 .0951 .096
Hydrogen Sulfide in Aqueous Solvents 133
COMPONENTS:1. Hydrogen sulfide; H2S;
[7783-06-4)2. Carbon dioxide; C02; [124-38-9)3. Water; H20; [7732-18-5)4. 2-Aminoethanol (monoethanolamine)
C2H7NO; [141-43-5)
EXPERIMENTAL VALUES:
ORIGINAL MEASUREMENTS:Lee, J.I.; O~to, P.O.; Mather,A.E.
Can. J. Chem. Eng. 1976, 54, 214-219.(Original data deposited in theNational Depository of UnpublishedData, Ottawa, Canada)*
Concentration of monoethanolamine (MEA) = 2.5 kmol m- 3 (2.5 mol dm- 3)
T/K Hole ratio in the liquidH2S/MEA C02/MEA
313.2 1265158315781559
207.5208.9
14601433113.8489.566.278.6
972 .1388.2832.9
147013941442122225232621
0.4610.5513.12
31.742.465.4
461 .3814.3146.5132.6
21.73.723.100.6200.6411.44
22.112.0
8.274.960.8270.758
10.566.6
134.4102.7182.7
81 .4108.2
38.34.62
373.2 215.5277 .2304.1304.1437.8472 .3
268.9152014891453
10.4834.47
164.81846
221312228779804
186818874169120.0
23064539
1243285
0.0710.0481.15
64.86.01
13.653.177.91
7.312.220.0790.0000.0000.0000.0000.0000.0000.0000.0000.0000.0000.0005.249.17
50.37.03
24.07.93
16.45.580.000
56.9319.2696.4
102020175092
0.8530.6210.5970.5500.7160.5941 .0030.4530.1100.4500.0610.0290.5640.1190.2850.3251 .0370.4940.2141 .2270.6040.1220.1200.1200.0860.3900.4040.7480.8760.6620.7410.6520.4770.4640.2690.2830.3820.7850.7000.6100.5730.2760.2990.5580.4960.4570.5790.6190.4820.5350.3500.420
0.3870.3090.2510.2260.1770.079
0.2380.5950.6120.6260.1100.214o.1310.7250.6600.4600.6940.8380.5040.9050.8330.9500.1020.7211 .0310.0750.7610.2170.2200.3690.5690.2620.2800.1440.1170.1120.0460.0320.0030.0030.0020.0020.0020.0020.0020.0020.0020.0010.0010.0380.2410.3660.1780.2080.2080.2510.3280.039
0.2430.4010.4930.5680.6750.902
134 Hydrogen Sulfide in Aqueous Solvents
COMPONENTS:1. Hydrogen sulfide; H2S;
[7783-06-4]2. Carbon dioxide; CO 2 ; [124-38-9]3. Water; H20; [7732-18-5]4. 2-Aminoethanol (monoethanolamine)
C2H7NO; [141-43-5]
EXPERIMENTAL VALUES:
ORIGINAL MEASUREMENTS:Lee, J.I.; otto, F.D.; Mather,A.E.
Can. J. Chem. Eng. 1976, 54, 214-219.(Original data deposited in theNational Depository of UnpublishedData, Ottawa, Canada)*
Concentration of monoethanolamine (MEA) = 2.5 kmol m- 3 (2.5 mol dm- 3)
T/K PH2s /kPa Pco/kPa Mole ratio in the liquidH2 S / MEA C02!MEA
373.2 185.5 126.9 0.330 0.332233.0 256.5 0.305 0.405226.1 197.2 0.331 0.389366.8 224.8 0.434 0.334402.6 422.6 0.364 0.430425.4 1136 0.323 0.53752.05 15.7 0.236 0.235
108.9 101 .4 0.224 0.348211 .7 912.4 0.162 0.567244.8 1893 0.119 0.700599.8 1076 0.365 0.481671.5 2679 0.252 0.653556.4 5109 0.156 0.815
1129 339.9 0.685 0.2161270 1150 0.589 0.3803779 54.3 1 .432 0.009682.9 41 .2 0.783 0.036
1751 2166 0.345 0.5911160 4385 0.228 0.774
12.9 243.4 0.013 0.550102.7 82.7 0.176 0.411175.1 186.8 0.294 0.365248.9 224.8 0.296 0.378283.4 795.6 0.220 0.510
3603 18.55 1 .425 0.0043157 157.2 1 .160 0.0323098 134.4 1. 117 0.0273414 660.5 1 .083 0.0973027 1339 0.936 0.222
130.3 7.10 0.560 0.078113.8 20.4 0.396 0.159244.8 33.2 0.539 0.129299.2 28.8 0.636 0.096418.5 167.5 0.505 0.227
3.03 1877 0.000 0.732136.5 2849 0.043 0.777385.4 13.9 0.764 0.031
1084 38.6 0.935 0.0291004 38.4 0.864 0.028376.4 0.496 0.688 0.002244.8 0.296 0.689 0.002580.5 0.861 0.846 0.002544.7 0.785 0.836 0.002
1842 0.958 1.088 0.0002744 1.406 1 .144 0.000
410.2 0.172 0.734 0.000403.3 0.137 0.743 0.000355.8 0.206 0.738 0.002
5.63 2963 0.030 0.7590.000 467.5 0.000 0.6110.000 1993 0.000 0.7730.000 1965 0.000 0.7790.000 5616 0.000 0.9430.000 5523 0.000 0.944
33.4 5634 0.003 0.930295.1 13.8 0.678 0.023180.0 0.372 0.630 0.004616.4 1 .30 0.848 0.004354.4 0.220 0.740 0.001
Hydrogen Sulfide in Aqueous Solvents 135
COMPONENTS:1. Hydrogen sulfide; H2S;
[ 7783-06-4]2. Carbon dioxide; CO 2 ; [124-38-9]3. Water; H20; [7732-18-5]4. 2-Aminoethanol (monoethanolamine)
C2H7NO; [141-43-5]
EXPERIMENTAL VALUES:
ORIGINAL MEASUREMENTS:Lee, J.I.; Otto, F.D.; Mather,A.E.
Can. J. Chem. Eng. 1976, 54, 214-219.(Original data deposited in theNational Depository of UnpublishedData, Ottawa, Canada)*
Concentration of monoethanolamine (MEA) = 2.5 kmol m- 3 (2.5 mol dm- 3)
The tables below, given in the paper, contain smoothed values of the moleratio H2S/MEA in the liquid phase for various partial pressures of H2S inthe gas phase and mole ratios C02/MEA in the liquid phase.
Mole ratioCOdMEA
T/K PH2S/kPa
313.2 0.10.3161 .003.16
10.031 .6
100316
10003000
Mole ratioCO 2/MEA
T/K PH2S
/kPa
313.2 10.031.6
100316
10003000
Mole ratioCO 2/MEA
T/K PH2S /kPa
373.2 0.10.3161.03.16
10.031.6
100316
100030006000
Mole ratioC02/MEA
0.000
0.1020.2020.3330.5270.7300.8660.9661 .0561 .2271 .620
0.700
0.0210.0410.0900.2000.4100.683
0.000
0.0280.0410.0650.1180.2270.4000.6150.8530.9901 .3361.770
0.500
0.100
0.0720.1500.2470.3730.5100.6330.7520.8921 .0781 .325
0.800
0.0190.0540.1370.3150.600
0.100
0.0170.0230.0420.0800.1620.2930.4550.6370.8351. 1101 .410
0.600
0.200
0.050o•1110.1870.2810.3880.4830.5780.7130.8911 .106
0.900
0.0320.1030.2430.510
0.200
0.0100.0110.0230.0530.1170.2250.3600.5200.7100.9421 .132
0.700
0.300
0.0260.0730.1330.2020.2830.3600.4530.5900.7670.968
1 .000
0.0180.0720.1870.420
0.300
0.0040.0150.0370.0780.1580.2740.4200.6000.8220.993*
0.800
0.400
0.0100.0430.0820.1280.1820.2500.3420.4700.6620.883
1 .100
0.0080.0500.1500.322
0.400
0.0030.0220.0510.1000.1970.3330.5020.7070.870*
0.900
0.500
0.0130.0380.0530.0970.1550.2430.3710.5700.817
1 .200
0.0310.1100.250*
0.600
0.0100.0220.0470.0860.1610.2900.5000.750
T/K
373.2
PH2S
/kPa
10.031.6
100.0316
100030006000
0.0270.0660.1420.2520.4050.5850.740*
0.0100.0370.0970.1850.3070.4700.600*
0.0200.0600.1330.2410.3790.487*
0.0370.0950.1870.3030.392*
0.0170.0580.1330.2360.316*
* extrapolated values given by the authors.
136
COMPONENTS:
Hydrogen Sulfide in Aqueous Solvents
ORIGINAL MEASUREMENTS:
1. Hydrogen sulfide; H2S;[7783-06-4]
2. Carbon dioxide; C02; [124-38-9]3. Water; H20; [7732-18-5]4. 2-Arninoethano1, (Monoethano1amin~
C2H,NO; [141-43-5]
Nasir, P.; Hather, A.E.
Can. J. Chern. Eng. 1977,55,715-717.
VARIABLES: PREPARED BY:
Pressure C.L. Young
EXPERIMENTAL VALUES: T/K = 373.15
Cone. of monoethano1amine = 5.0 mol dm- 3
PH2S
/kPa Pco/kPat t
ct H2S ctC02
0.0131 0.0103 0.013 0.04050.0152 0.0200 0.0083 0.04750.0455 0.0607 0.010 0.0720.179 0.00214 0.0264 0.0090.324 0.0165 0.025 0.0260.372 0.0262 0.0463 0.0230.531 0.490 0.0133 0.0960.586 0.669 0.013 0.1190.669 0.0145 0.036 0.0120.703 0.331 0.018 0.0780.814 1.131 0.011 0.1160.896 0.434 0.021 0.0821. 03 0.0648 0.032 0.0281.10 0.00896 0.042 0.0061. 22 0.607 0.027 0.0831.36 0.386 0.033 0.061. 76 0.0244 0.053 0.0122.10 1. 21 0.022 0.143.03 0.0138 0.06 0.0043.17 0.896 0.035 0.1993.24 0.193 0.053 0.0383.38 0.848 0.046 0.0923.84 0.793 0.037 0.1034.14 0.0276 0.084 0.0044.20 0.227 0.066 0.037
AUXILIARY INFORMATION
METHOD/APPARATUS/PROCEDURE: SOURCE AND PURITY OF MATERIALS:
Nitrogen passes through three 250 m1vessels in series which containedamine solution with a certain amount No details given.of dissolved hydrogen sulfide andcarbon dioxide. Emerging gas fromlast vessel analysed by GC. Hydrogensulfide content determined by iodine-thiosulfate titration and carbondioxide by barium carbonate precipit-ation.
ESTIMATED ERROR:
oT/K = ±0.5; oct = ±6%(estimated by compiler).
REFERENCES:
Hydrogen Sulfide in Aqueous Solvents 137
COMPONENTS:
1. Hydrogen sulfide; H2S; [7783-06-4]2. Carbon dioxide; C02; [124-38-9]3. Water; H2 0; [7732-18-5]4. 2-Aminoethano1, (Monaethana1amine);
C2H,NO; [141-43-5]
ORIGINAL MEASUREMENTS:
Nasir, P.; Mather, A.E.
Can. J. Chern. Eng. 1977,55,715-717.
EXPERIMENTAL VALUES:
PH2S/kPa pco/kPat t
a H2S aC02
4.41 0.262 0.063 0.0424.41 0.0690 0.08 0.01244.50 0.103 0.0796 0.024.94 0.0910 0.081 0.01645.24 0.276 0.069 0.0436.41 1.10 0.071 0.1156.81 0.483 0.071 0.0517.17 1.17 0.069 0.1167.28 0.476 0.083 0.0577.65 0.0413 0.119 0.0068.89 0.0565 0.128 0.0069.31 2.96 0.064 0.175
t a.= Mole of species i/ma1e of manaethana1amine.'Z-
138
COMPONENTS:
Hydrogen Sulfide in Aqueous Solvents
ORIGINAL MEASUREMENTS:
1. Hydrogen sulfide: H2S:[7783-06-4]
2. Carbon dioxide; C02: [124-38-9]3. water: H20: [7732-18-5]4. 2-Aminoethano1 (MEA), (Mono
ethanolamine): C2H7NO:[141-43-5]
VARIABLES:
Pressure
EXPERIMENTAL VALUES:
Isaacs, E. E.: Otto, F. D.:Mather, A. E.
J. Chern. Eng. Data
1980, 25, 118-120.
PREPARED BY:
C. L. Young
T/K
373.15
Cone. MEA P/kPa at/kmo1 m- 3
H2S CO2 H2 S/ MEA C02!MEA
2.5 trace 0.886 trace 0.149trace 0.0337 0.0067 0.06000.0353 0.00714 0.0181 0.01820.0590 0.0198 0.0187 0.03570.0842 0.0297 0.0205 0.03100.0601 0.0140 0.0213 0.02170.0242 0.0408 0.0219 0.03470.138 0.0490 0.0231 0.03120.149 0.0453 0.0232 0.02950.120 0.0331 0.0238 0.02610.121 0.0242 0.0239 0.01970.102 0.0214 0.0247 0.02270.140 0.0163 0.0248 0.02100.211 0.0511 0.0263 0.02970.499 0.565 0.0265 0.1080.237 0.0834 0.0269 0.04670.138 0.0270 0.0272 0.02130.133 0.0222 0.0277 0.02110.131 0.0067 0.0325 0.01000.314 0.0568 0.0326 0.03100.583 0.244 0.0338 0.07910.432 0.155 0.0340 0.04920.544 0.246 0.0365 0.0718
(cont. )
AUXILIARY INFORMATION
METHOD/APPARATUS/PROCEDURE:
Nitrogen passed through three 250 m1
vessels in series which contained
amine solution with a certain amount
of dissolved carbon dioxide and
hydrogen sulfide. Emerging gas
from last vessel analysed by GC.
Liquid sample taken from last vessel.
Hydrogen sulfide content determined
by iodine-thiosulfate titration
and carbon dioxide by barium
carbonate precipitation.
SOURCE AND PURITY OF MATERIALS:
No details given.
ESTIMATED ERROR:
oT/K = ±0.5: oa = ±6%
(estimated by compiler) •
REFERENCES:
Hydrogen Sulfide in Aqueous Solvents 139
COMPONENTS: ORIGINAL MEASU~MENTS:
1- Hydrogen sulfide; H2 S ; Isaacs, E. E.; Otto, F. D.;[7783-06-4] Mather, A. E.
2. Carbon dioxide; CO2; [124-38-9] J. Chern. Eng. Data3. Water; H2O; [7732-18-5]4. 2-Aminoethano1 (MEA) , (Mono- 1980, 25, 118-120.
ethanolamine); C2 H7NO ;[141-43-5]
EXPERIMENTAL VALUES:
Cone. MEA P/kPaat
T/K/kmo1 m- 3
H2 S CO2 H2 S/ MEA C02!MEA
373.15 2.5 0.329 0.0714 0.0369 0.03750.424 0.0906 0.0382 0.03570.260 0.0780 0.0388 0.04060.476 0.0962 0.0400 0.04000.548 0.140 0.0400 0.04920.620 0.137 0.0409 0.04850.458 0.0545 0.0418 0.02540.561 0.126 0.0420 0.04620.778 0.135 0.0425 0.04570.391 0.0048 0.0459 0.00850.823 0.220 0.0504 0.05930.752 0.211 0.0507 0.06100.949 0.242 0.0518 0.07110.928 0.206 0.0536 0.06060.851 0.204 0.0537 0.05161.28 0.438 0.0555 0.08510.932 0.248 0.0567 0.05451.18 0.239 0.0570 0.06860.966 0.116 0.0612 0.03321. 84 0.523 0.0654 0.09411. 24 0.132 0.0735 0.03332.56 0.838 0.0748 0.1151.21 0.0027 0.0755 0.00621.63 0.164 0.0846 0.03272.10 0.195 0.0872 0.04012.03 0.169 0.0924 0.03633.92 1. 36 0.0954 0.1412.81 0.355 0.122 0.04073.36 0.0800 0.136 0.0062
t Mole ratio
140 Hydrogen Sulfide in Aqueous Solvents
COMPONENTS:
1. Hydrogen ~ulfide~ H2S~
[7783-06-4]2. Carbon dioxide~ C02~ [124-38-9]3. Water~ H20~ [7732-18-5]4. Ethanol, 2,2'-iminobis-,
(d~ethanolamine)~ C4HllN02~
[111-42-2]
VARIABLES:
Temperature, pressure, compositionof liquid phase
ORIGINAL MEASUREMENTS:Leibush, A.G.~ Shneerson, A.L.
Zhur. Prik. Khim. 1950, 23, 145-152.J. Applied Chem. USSR 1950,23,149-157.
PREPARED BY:P.G.T. Fogg
EXPERIMENTAL VALUES:
Concentration of diethanolamine (DEA) 2.0 mol dm-3~ T/K = 298.2
Mole ratios in liquid phaseH2S/DEA C02/DEA
1.72 0.00 0.126 0.0165.13 1 .17 0.126 0.198
18.7 12.4 0.128 0.34223.6 25.0 0.123 0.406
0.77 - 0.027 0.1866.0 0.8 0.149 0.186
23.0 2.6 0.302 0.18667.5 5.4 0.425 0.18992 12.0 0.517 0.195
141 18.5 0.556 0.2031 .3 4.5 0.017 0.3636.1 6.8 0.067 0.363
37 14.4 0.206 0.35561 24.6 0.277 0.363
145 56 0.404 0.324240 80 0.491 0.270
760 mmHg = 1 atm = 1.01325 bar
AUXILIARY INFORMATION
METHOD/APPARATUS/PROCEDURE:
N2 or a mixture of N2 & H2S waspassed successively through twoabsorbers containing H2S & CO 2dissolved in an aqueous solution ofDEA. The H2S in the emerging gaswas passed into cadmium or zincacetate solution and theprecipitated sulfides estimated byiodimetry. Hydrogen sulfide in theDEA solutions was also determined byiodimetry. CO 2 in the gas phase wasabsorbed in standard baryta solutionafter removal of H2S by acidifiedpotassium permanganate solution.C02 in the liquid phase wasestimated by reaction with 30%H2S04' removal of evolved H2S bypermanganate and absorption ofevolved C02 in standard barytasolution.
SOURCE AND PURITY OF MATERIALS:
1. From H2S04 & Na2S: no S02detected
4. Contained 0.2 to 0.6 volumes ofC02 per unit volume ofsolution~ less than 1% byweight of total impurities.
ESTIMATED ERROR:
6T/K = ± 0.1 (authors)
REFERENCES:
Hydrogen Sulfide in Aqueous Solvents 141
COMPONENTS:1. Carbon dioxide; C02; [124-38-9)2. Hydrogen sulfide; H2S; [7783-06-4J3. 2,2'-Iminobisethanol,
(Diethanolamine); C4HllN02;[111-42-2]
4. Water; H20; [7732-18-5]
ORIGINAL MEASUREMENTS:Lee, J.I.; Otto F.D.; Mather, A.E.
Can. J. Chern. Engng. 1974, 52, 125-7(Complete data in the Centre forUnpublished Data, National ScienceNRC, Ottawa, Ontario, KlA OS2,Canada)
VARIABLES: PREPARED BY:Temperature, pressure, concentration C.L. Young
323.15 1505.80 144.51 1.006 0.1061081.08 2800.62 0.447 0.693
732.90 843.22 0.570 0.433703.94 2149.76 0.381 0.719682.57 404.02 0.703 0.308675.68 5135.17 0.188 0.994632.24 274.40 0.784 0.239629.48 33.57 0.989 0.048600.52 167.54 0.826 0.170508.13 67.56 0.881 0.094488.83 3433.56 0.173 0.977415.75 5343.39 0.125 1.140399.89 1292.75 0.294 0.704359.90 29.16 0.851 0.063340.59 71.01 0.785 0.125299.91 1974.64 0.176 0.902298.54 152.37 0.604 0.285289.23 18.13 0.831 0.053274.40 384.72 0.515 0.447242.69 92.38 0.634 0.250194.43 277 .16 0.361 0.477178.57 1951.20 0.108 0.962158.57 1067.98 0.154 0.856151.68 658.44 0.189 0.742142.72 880.45 0.133 0.812
AUXILIARY INFORMATION
Nitrogen used as carrier, purity99.99 mole per cent.
SOURCE AND PURITY OF MATERIALS:1. Liquid Air sample, purity 99.9
mole per cent.
2. Matheson sample, purity 99.5 moleper cent.
3. Purity 99.8 mole per cent.
4. Distilled.
Recirculating vapor flow apparatuswith Jerguson liquid level gaugecell and magnetic pump. Nitrogenadded to vapor to increase pressureto at least 200 kPa. Vapor analysedby gas chromatography. Partialpressure of carbon dioxide andhydrogen sulfide calculated frompressure and vapor pressure ofdiethanolamine. Liquid samplespassed into sulfuric acid. Carbondioxide and hydrogen sulfide collect-~ ~
ed in buret and then analysed by ESTIMATED ERROR:gas chromatography. oT/K = ±0.5; oP/bar = ±l%; oa =
±3-5%.
METHOD/APPARATUS/PROCEDURE:
REFERENCES:
142 Hydrogen Sulfide in Aqueous Solvents
COMPONENTS:
1. Carbon dioxide; CO2 ; [124-38-9]2. Hydrogen sulfide; H2S; [7783-06-4]3. 2,2'-Iminobisethano1
(Diethano1aminel; C4HllN02;[111-42-2]
4. Water; H20; [7732-18-5]
ORIGINAL MEASUREMENTS:
Lee, J.I.; Otto, F.D.; Mather,A.E.
Can. J. Chern. Engng. 1974, 52,125-7.
EXPERIMENTAL VALUES: Solubility of H2S-C02 Mixtures in 2.0 mol dm- 3 DEAa a
T/K PH2S/kPa Pco2 /kPa H2S/DEA CO2/DEA
323.15
373.15
129.6293.0791.3588.2580.8080.6679.6372.3965.7049.1547.4739.7138.1936.8136.2634.5424.7521. 7114.4012.6810.7910.1310.06
7.657.376.616.414.514.133.853.061.570.88
1654.721378.941027.31
985.94983.87916.99889.41872.17848.04686.71618.45537.78479.87417.12399.89395.06348.18344.73339.21317.84293.71283.37278.54237.17217.87202.70
5764.657.21
17.92144.78
71.15422.64
82.9433.2347.025.235.51
26.401. 47
152.0216.8259.36
423.3314.89
704.6311.30
0.859.430.89
451. 4627.09
0.55109.62
1.399.371.123.470.300.21
141. 341678.851130.73
277.852772.35
482.622488.984709.08
290.954863.52
98.594907.64444.01
1534.07916.99
1011. 453151. 56
37.57162.71539.85
5129.65760.48382.65
2009.11375.07
1500.28
0.0410.6530.5570.2560.3850.1290.3320.4340.3800.5120.5250.3310.5640.1290.3670.2130.0450.2360.0120.1970.3820.1990.3700.0240.0920.3040.0290.2080.0920.2100.1280.1780.117
1.0720.7130.6650.8200.5040.7260.4750.3600.7490.3000.6950.2200.5250.3270.3620.3560.2160.6340.5540.4050.1260.3180.4060.0940.3280.188
1.2210.0740.1460.5210.3520.7420.4240.2770.3450.1200.0940.3280.0400.6280.2380.4750.7850.3230.8650.3180.0780.2730.0670.8150.4900.0790.6620.1580.4000.1550.2960.0860.076
0.0330.3360.3170.1060.5160.1760.5160.7000.1150.8000.0710.8200.2500.5450.4430.4390.7330.0390.1460.3560.8850.4120.3170.7820.3280.628
Hydrogen Sulfide in Aqueous Solvents 143
COMPONENTS:
1. Carbon dioxide; C02; [124-38-9]2. Hydrogen sulfide; H2S; [7783-06-4]3. 2,2'-Iminobisethanol,
(Diethanolaminel; C4HIIN02;[111-42-2]
4. Water; H20; [7732-18-5]
ORIGINAL }mASUREMENTS:
Lee, J.I.; Otto F.D.; Mather,A.E.
Can. J. Chern. Engng. 1974, 52,
125-7.
EXPERIMENTAL VALUES: Solubility of H2S-C02Mixtures in 2.0 mol dm- 3DEAex ex
T/K PH2S/kPa PCo2 /kPa H2S/DEA C02/DEA
373.15 181. 33179.26177.88170.29159.95153.75135.82128.24115.14113.76105.4897.2181. 0879.9775.8463",1562.0556.7448.5335.7127.5720.6819.3018.2714.7513.5111.4410.139.654.663.260.56
48.673160.53
119.9635.16
5112.42577.08
1571.99235.79
5543.33777.72
2491.05502.62
35.435453.70
990.7665.98
390.9239.23
186.8417.99
7.515650.20
9.031545.10
22.40529.51170.9814.9657.705.871.29
13.61
0.4510.1070.4240.4290.0600.2260.1230.2730.0460.1430.0580.1430.2870.0290.1110.2330.1140.2150.1400.2000.1990.0030.1510.0150.1020.0220.0380.0910.0600.0490.0440.010
0.0880.7880.1700.0900.9400.4610.6430.3210.8970.5260.7820.4730.0980.9620.5850.1920.4620.1270.3640.0920.0501. 0000.0670.6820.1520.5650.4190.1170.2690.0790.0170.148
Solubility of H2S-C02 Mixtures in 3.5 mol dm- 3 DEA
323.13 1509.931450.641071.431026.62
952.84625.34413.68392.30338.52307.50291.64281.30279.23259.93259.24244.07233.73225.45187.53141.34129.48
1606.4659.01
1134.17455.05
4578.081114.87
279.9259.2297.2121 .02
153.063069.521141.075228.25
175.1270.3262.46
229.59521 .92293.02
16.54
0.6521 .0280.5450.7060.2840.3960.5250.7270.6320.7570.5110.0950.1570.0600.4350.5920.4860.3580.1020.2000.554
0.4480.0260.4650.2640.8240.5500.3270.1100.1990.0640.3090.9250.7281 .0000.3570.2050.2810.4190.7040.5630.151
144 Hydrogen Sulfide in Aqueous Solvents
COMPONENTS:
1. Carbon dioxide; C02; [124-38-9]2. Hydrogen sulfide; H2S; [7783-06-4]3. 2,2'-Irninobisethano1,
(Diethano1arnine); C4H11N02;[111-42-2]
4. Water; H20; [7732-18-5]
ORIGINAL HEASUREMENTS:
Lee, J.I.; Otto, F.D.; Mather, A.E.
Can. J. Chem. Engng. 1974,52,125-7
EXPERI~~NTAL VALUES: Solubility of H2S-C02 ~1ixtures in 3.5 Mol drn- 3 DEA
T/K
323.15
373.15
125.13119.96111.14
95.1489.2884.8073.7768.6063.4360.8150.8145.5039.7136.3333.7830.6825.9921 .7117.9917.0916.9614.7512.27
9.378.547.796.095.975.034.704.554.512.390.90
1622.321585.781416.171380.311316.881275.511130.731064.541061.78
993.52754.96703.25670.16665.33501 .93495.03485.38474.35466.77458.49383.69375.07
14.061434.78
35.43477.11
5.1379.28
1159.68258.20
33.2387.0155.70
430.2212.5418.82
438.5046.5332.6820.333.92
128.3774.5322.475.901 .34
31.858.616.83
11 .036.371 .510.82
60.743.480.60
1566.47250.96
1868.46415.75
1533.38361.28
4498.794591.874525.68
287.501840.884919.36
48.95923.88102.04
5024.16683.26
1235.53340.59
1875.3594.11
230.97
0.560.0700.4510.0960.5850.3640.0530.1070.3080.2000.1960.0570.3170.2270.0480.1630.1710.1500.3100.0530.0710.1250.1910.2830.0660.1060.1270.0720.0740.1510.1590.0210.0780.085
0.6040.8010.5900.7280.5660.7160.3140.2960.3560.6890.3500.2160.7030.4100.5910.1530.4100.3220.4800.2430.5150.433
a.C02!DEA
0.1300.8150.2380.6840.0740.3460.7990.6020.3020.4540.4250.6930.2530.3380.7080.4460.3920.3850.1400.5950.5200.4000.2590.0830.4550.3170.2720.3680.3540.1790.1420.5410.2700.148
0.2430.0590.2930.0830.2790.1060.5370.5960.5060.0990.4050.5940.0270.3180.0710.6810.3040.3980.1810.4870.0860.173
COMPONENTS:
Hydrogen Sulfide in Aqueous Solvents
ORIGINAL MEASUREMENTS:
145
1. Carbon dioxide~ C02~ [124-38-9]2. Hydrogen su1fide~ H2S~ [7783-06-4]3. 2,2'-Iminobisethano1,
(Diethano1amine)~ C4HIIN02~
[111-42-2]4. Water~ H20~ [7732-18-5]
Lee, J.I.l Otto, F.D.~Mather, A.E.
Can. J. Chem. Engng. 1974, 52,125-7(Complete data in the Centre forUnpublished Data, National ScienceNRC, Ottawa, Ontario, K1A OS2,Canada)
EXPERIMENTAL VALUES: Solubility of H2S-C02 Hixtures in 3.5 mol dm-.:l DEA
HSD5-F
ct ctT/K P
H2S/kpa Pco/kPa H2S/DEA C02!DEA
373.15 337.84 5388.20 0.067 0.755320.60 654.99 0.278 0.332307.50 6.17 0.545 0.005285.44 82.04 0.445 0.091258.55 2571.72 0.127 0.626255.10 2369.01 0.132 0.639222.00 4607.03 0.082 0.725203.39 723.94 0.204 0.416199.94 575.70 0.221 0.374195.12 891.48 0.160 0.472131 .68 5.53 0.386 0.016117.89 151.68 0.227 0.238111. 55 1 .65 0.342 0.006108.93 48.67 0.278 0.124
96.52 49.09 0.228 0.12985.90 81 .15 0.190 0.19266.25 11 .58 0.239 0.04561 .43 31 .23 0.210 0.11859.29 1625.77 0.043 0.60256.19 619.14 0.072 0.47052.88 919.75 0.056 0.55049.64 181.33 0.103 0.32543.78 266.13 0.078 0.38737.71 32.12 0.148 0.13630.61 193.74 0.070 0.36424.20 0.82 0.142 0.00615.03 53.77 0.072 0.22611 .85 1.44 0.102 0.007
9.23 9.28 0.065 0.0886.41 3.61 0.066 0.040
ct :: Mole ratio in liquid phase.
146 Hydrogen Sulfide in Aqueous Solvents
COMPONENTS:1. Carbon dioxide; CO 2 ; [124-38-9]2. Hydrogen sulfide; H2S;
[7783-06-4]3. 2,2'-iminobisethanol;
(Diethanolamine); C4HllN02;[111-42-2]
4. Water; H20; [7732-18-5]
EXPERIMENTAL VALUES:The tables give smoothed values of thephase for various partial pressures ofCO 2 /DEA in the liquid phase.
Concentration of diethanolamine (DEA)
ORIGINAL MEASUREMENTS:Lee, J.I.; otto, P.D.; Mather, A.E.
Can.J.Chem.Eng., 1974, 52, 125 - 127.(Complete data in the Centre forUnpublished Data, National ScienceLibrary, National Research Council,Ottawa, Ontario K1A OS2, Canada)
mole ratio H2S/DEA in the liquidH2S in the gas phase and mole ratios
2.0 mol dm- 3
Mole ratioC02!DEA 0.000 0.100 0.200 0.300 0.400 0.500 0.600
323.2 0.0100 0.0689 0.028 0.021* 0.011* 0.0054* 0.0021* 0.0009* 0.00042*0.0316 0.218 0.068 0.050* 0.028* 0.016* 0.0073* 0.0034* 0.0016*0.100 0.689 0.136 0.097* 0.062* 0.036* 0.021* 0.011* 0.0056*0.316 2.18 0.230 0.172 0.120 0.079 0.052 0.033* 0.019*1.00 6.89 0.382 0.290 0.225 0.153 0.120 0.080 0.0503.16 21.8 0.562 0.455 0.353 0.266 0.208 0.151 0.107
10.0 68.9 0.730 0.612 0.501 0.406 0.327 0.254 0.19531 .6 218 0.875 0.760 0.654 0.555 0.464 0.378 0.310
100 689 1.002 0.906 0.815 0.707 0.625 0.530 0.450200 1379 1 .215 1.005 0.910 0.808 0.720 0.632 0.546
Mole ratioCO 2/DEA 0.700 0.800 0.900 1 .000 1 .100 1 .200
T/K PH 2S PH2S
/psia /kPa**
323.2 0.0100 0.0689 0.00021*0.0316 0.218 0.00088*0.100 0.689 0.00275* 0.0013*0.316 2.18 0.0090 * 0.0044* 0.0019*1 .00 6.89 0.028 0.015 0.0070*3.16 21.8 0.065 0.040 0.023
10.0 68.9 0.145 0.096 0.061 0.041 0.029 0.02131.6 218 0.246 0.189 0.136 0.100 0.073 0.056
100 689 0.380 0.315 0.250 0.198 0.154 0.118*200 1379 0.473 0.410 0.340* 0.280* 0.223* 0.179*
Mole ratioCO 2/DEA 0.000 0.100 0.200 0.300 0.400 0.500 0.600
T/K PH2S PH2S
/psia **/kPa
373.2 0.0100 0.0689 0.0026* 0.0017* 0.0011*0.0316 0.218 0.0084* 0.0067* 0.0037* 0.023* 0.0014* 0.0008*0.100 0.689 0.023 0.0165* 0.0108* 0.0069* 0.0044* 0.0025* 0.0014*0.316 2.18 0.055 0.038* 0.027* 0.0176* 0.0117* 0.0068* 0.0040*1.00 6.89 0.120 0.082 0.060 0.042 0.029 0.018 0.0113.16 21.8 0.208 0.158 0.122 0.092 0.068 0.047 0.029
10.0 68.9 0.348 0.286 0.237 0.197 0.158 0.122 0.08831 .6 218 0.535 0.471 0.412 0.358 0.300 0.250 0.200
100 689 0.808 0.726 0.650 0.579 0.507 0.443 0.380316 2180 1.200 1.040 0.950 0.870 0.792 0.725 0.650
** * extrapolated values given by the authors.calculated by the compiler.
Hydrogen Sulfide in Aqueous Solvents 147
COMPONENTS:1. Carbon dioxide; CO 2 ; [124-38-9]2. Hydrogen sulfide; H2S;
[7783-06-4]3. 2,2'-Iminobisethanol;
(Diethanolamine); C~HllN02;
[111-42-2]4. Water; H20; [7732-18-5]
ORIGINAL MEASUREMENTS:Lee, J.I.; otto, F.D.; Mather, A.E.
Can.J.Chem.Eng., 1974, 52, 125 - 127.(Complete data in the Centre forUnpublished Data, National ScienceLibrary, National Research Council,Ottawa, Ontario K1A 082, Canada)
EXPERIMENTAL VALUES:The tables give smoothed values of the mole ratio H2S/DEA in the liquidphase for various partial pressures of H2S in the gas phase and mole ratiosCO 2/DEA in the liquid phase.
Concentration of diethanolamine (DEA) = 2.0 mol dm- 3
Mole ratioC02!DEA 0.700 0.800 0.900 1.000 1 .100 1 .200
T/K PH2S PH2S
/psia /kPa**
373.2 0.100 0.0689 0.0007*0.316 2.18 0.0021* 0.0011*1.00 6.89 0.0060 0.00343.16 21.8 0.017 0.011 0.006 0.003*
10.0 68.9 0.057 0.039 0.028 0.017* 0.0108* 0.0065*31 .6 218 0.150 0.115 0.086 0.060* 0.044* 0.032*
100 689 0.322 0.270 0.220 0.171 * 0.139* 0.109*316 2180 0.573 0.511 0.450* 0.383* 0.323* 0.276*
Concentration of diethanolamine (DEA) = 3.5 mol dm- 3
Mole ratioC02!DEA 0.000 0.100 0.200 0.300 0.400 0.500 0.600
T/K PH2S PH2S
/psia /kPa**
323.2 0.0100 0.0689 0.012* 0.0072* 0.0040* 0.0021*0.0316 0.218 0.040* 0.023 0.0135* 0.0078* 0.0044* 0.0024* 0.00102*0.100 0.689 0.087 0.058 0.036 0.024 0.013* 0.0073* 0.0037*0.316 2.18 0.160 0.123 0.088 0.054 0.035 0.0190 0.01051.00 6.89 0.278 0.218 0.164 0.110 0.073 0.045 0.0293.16 21.8 0.422 0.348 0.272 0.205 0.145 0.095 0.060
10.0 68.9 0.520 0.510 0.420 0.328 0.245 0.170 0.12031.6 218 0.782 0.673 0.572 0.472 0.376 0.288 0.215
100 689 0.920 0.825 0.726 0.632 0.532 0.434 0.345316 2180 1 .144 1 .007 0.907 0.804 0.710 0.605 0.520
Mole ratioCO 2/DEA 0.700 0.800 0.900 1 .000 1 .100 1 .200
T/K PH2S PH2S
/psia /kPa**
323.2 0.0316 0.218 0.0006* 0.00034*0.100 0.689 0.0019* 0.0010*0.316 2.18 0.0056* 0.0030* 0.00145*1.00 6.89 0.0155 0.0086* 0.0041* 0.0021*3.16 21.8 0.038 0.023 0.0120 0.0065* 0.0035*
10.0 68.9 0.080 0.055 0.0335 0.0195 0.0120* 0.0070*31.6 218 0.150 0.110 0.076 0.050 0.0340* 0.0230*
100 689 0.273 0.210 0.155 0.120* 0.090* 0.065*316 2180 0.440 0.360 0.296* 0.244* 0.200* 0.160*
*** extrapolated values given by the authors.calculated by the compiler.
148 Hydrogen Sulfide in Aqueous Solvents
COMPONENTS:1. Carbon dioxide; CO 2 ; [124-38-9]2. Hydrogen sulfide; H2S;
[7783-06-4]3. 2,2'-Iminobisethanol;
(Diethanolamine); C4HllN02;[111-42-2]
4. Water; H20; [7732-18-5]
EXPERIMENTAL VALUES:The tables give smoothed values of thephase for various partial pressures ofC02/DEA in the liquid phase.
Concentration of diethanolamine (DEA)
ORIGINAL MEASUREMENTS:Lee, J.I.; otto, P.D.; Mather, A.E.
Can.J.Chem.Eng., 1974, 52, 125 - 127.(Complete data in the Centre forUnpublished Data, National ScienceLibrary, National Research Council,Ottawa, Ontario K1A OS2, Canada)
mole ratio H2S/DEA in the liquidH2S in the gas phase and mole ratios
3.5 mol dm- 3
Mole ratioCO 2/DEA
T/K
0.000 0.100 0.200 0.300 0.400 0.500 0.600
373.2 0.0100 0.0689 0.0019* 0.0011* 0.0007*0.0316 0.218 0.0062* 0.0039* 0.0024* 0.0014* 0.0007* 0.0003*0.100 0.689 0.020 0.0110* 0.0070* 0.0040* 0.0022* 0.0010*0.316 2.18 0.038 0.0275* 0.0185 0.0113* 0.0066* 0.0034* 0.0016*1.00 6.89 0.078 0.060 0.045 0.032 0.019* 0.010* 0.0052*3.16 21 .8 0.155 0.120 0.092 0.070 0.049 0.034 0.017
10.0 68.9 0.282 0.230 0.185 0.144 0.109 0.081 0.05331 .6 218 0.475 0.393 0.324 0.262 0.212 0.161 0.119
100 689 0.712 0.605 0.518 0.434 0.363 0.297 0.226316 2180 0.942 0.815 0.711 0.630 0.547 0.470 0.388
Mole ratioC02/DEA 0.700 0.800 0.900 1 .000 1 .100 1.200
T/K PH 2S PH2S
/psia /kPa**
373.3 1.00 6.89 0.0025* 0.0010*3.16 21.8 0.0093* 0.0037*
10.0 68.9 0.031 0.013 0.0080* 0.0040* 0.0022* 0.0011*31 .6 218 0.082 0.046 0.0290* 0.0185* 0.0118* 0.0066*
100 689 0.165 0.116 0.082* 0.060* 0.043* 0.030*316 2180 0.313* 0.248* 0.195* 0.150* 0.122* 0.096*
** * extrapolated values given by the authors.calculated by the compiler.
Hydrogen Sulfide in Aqueous Solvents
COMPONENTS: ORIGINAL MEASUREMENTS:
1. Carbon dioxide; CO 2; [124-38-9] Lawson, J.D. and Garst, A.W.2. Hydrogen sulfide; H2S; [7783-06-4]3. Water; H20; [7732-18-5] J. Chem. Engng. Data, 1976, 21,4. 2, 2 '-rminobisethanol, 20-30.
(Diethanolamine); C4HllN02;[111-42-2]
VARIABLES: PREPARED BY:
Temperature, pressure C.L. Young
149
EXPERIMENTAL VALUES:+T/K PH2s/bar Conc.of DEA
/wt%
Liquid compmol/mol amineH2S C02
310.93 0.000130.000170.000250.000270.000730.000520.00130.00710.00550.00331.293.560.0840.0310.0210.0130.2173.330.0920.3730.0362.310.1150.2220.885
25
3.241.720.136
0.023
0.54112.66
0.0330.493
3.18
0.0770.613
AUXILIARY INFORMATION
0.00420.00450.00740.00770.00950.01250.01220.0580.0590.0620.1060.1110.1200.1240.1240.1270.1520.2200.2370.2390.2510.3840.4420.4420.441
0.06760.09900.1300.0810.2120.1130.2300.2210.2140.1090.7340.7150.4780.2110.2270.1180.6050.9300.3100.5270.1600.6300.1120.2160.410
METHOD/APPARATUS/PROCEDURE: SOURCE AND PURITY OF MATERIALS:
Rocking equilibrium cell fitted withliquid and vapour sampling valves.Pressure measured with Bourdongauge.
Cell charged with amine then gasesand methane added as an inert gas toachieve the desired total pressure.
Vapour phases analysed by massspectrometry. Liquid samplesanalysed by electrometric titration,details in source. Additionalanalytical methods were used forsome samples.
1. Purity 99.99 mole per cent.2. Purity 99.5 mole per cent.3. Distilled.4. Commercial sample purity better
than 99 mole per cent as determined by acid titration.
ESTIMATED ERROR~
oT/K = ±0.15 at 310 K increasing to±0.6 at 422 K; oP/bar = ±0.5%;oX
C02= ±3%.
REFERENCES:
150 Hydrogen Sulfide in Aqueous Solvents
CQI.1PONENTS:
1. Carbon dioxide; C02; [124-38-9]2. Hydrogen sulfide; H2S; [7783-06-4]3. ~Jater; H20; [7732-18-5]4. 2, 2 '-Iminobisethano1,
(Diethano1aminel; C4Hl1N02;[111-42-2]
EXPERIl1ENTAL VALUES:
ORIGINAL HEASUREMENTS:
Lawson, J.D. and Garst, A.W.
J.Chem.Engng. Data. 1976, 21,20-30.
T/K +PC0 2/bar Cone. of DEA
/wt%Liquid eomp
mol/mol amineH2S C02
310.93
324.82
338.71
352.59
366.48
3.802.120.8131.410.440
12.1819.98
8.53
3.4011. 32
9.99
0.000650.000870.00210.00150.00120.00430.00450.00510.01600.00650.4800.1930.1640.0630.0430.4130.6001. 570.2853.330.1432.3981. 3590.5860.4283.7971. 6652.1450.9731.3728.660
21. 9811. 7813.5911. 99
3.06414.0012.66
0.00810.00610.00350.00950.00910.053
4.201. 080.2200.2000.03464.010
15.321. 35
14.125.201. 93
0.040
3.9300.6000.5000.0670.01471. 571. 036.050.157
18.650.00314.7961. 330.2440.0605.0630.7461. 2260.1150.4264.450
21.182.5855.4622.651
1. 8656.9282.731
0.229
0.040
0.085
25 0.5230.5850.6070.6310.6350.8610.9661. 020
0.2500.9971. 050
0.00400.00410.00970.00990.01260.01280.02910.02940.05120.05940.1050.1130.1140.1180.1200.1470.2090.2140.2520.2560.2570.3750.4130.4370.4430.5100.5260.5760.6240.6360.8550.9240.9900.9761.010
0.2550.9200.920
0.01130.01250.03140.03270.03340.0710
0.6000.3810.2810.2580.1140.2640.6880.119
0.8900.2770.161
0.0650.0800.1090.0620.1070.2380.0740.1270.2330.1150.6540.4570.4950.2150.1080.5960.4520.6660.2850.8420.1290.5670.4100.2070.1160.5060.2520.2980.1140.2180.1560.5470.1180.2720.140
0.7700.2380.139
0.2140.1090.0540.0850.0630.122
COHPONENTS:
Hydrogen Sulfide in Aqueous Solvents
ORIGINAL HEASUREHENTS:
151
1.Carbon dioxide: C02: [124-38-9]2.Hydrogen sulfide: H2S: [7783-06-4]3.Hateri H20; [7732-18-5]4.2,2'-Iminobisethanol,
(Diethanolamine): C4HllN02;[111-42-2)
EXPERIMENTAL VALUES:
Lawson, J.D. and Garst, A.W.
J. Chern. Engng. Data, 1976, 21,20-30.
T/K +PCo 2/ bar Cone. of DEA
/wt%Liquid comp
mol/mol amineH2S C02
366.48
380.37
394.26
310.93
338.71
366.48
0.5930.2930.1350.5600.7460.6080.3820.3062.9312.664
21.8513.8615.05
2.00014.2516.39
0.0085
0.01350.3100.2280.3730.2800.2460.8660.4410.7860.6930.7594.54
14.6516.5220.12
0.000160.693
0.0011
0.00352.398
5.2621.1720.1563.7843.6641. 6250.5200.203
17.991.972
21. 983.5047.594
19.324.2768.3930.906
4.1304.5036.3281. 2231. 892
19.581.1993.1440.9990.4264.254.669.59
22.91
0.600
0.0855.595
25
50
0.1070.1140.1290.1290.1560.1830.1960.1960.2550.4960.8810.9150.935
0.1720.8700.9220.0056
0.01350.03910.04720.05320.06270.07360.08740.1240.1260.1570.1760.4880.8250.8400.822
0.00260.260
0.0030
0.00280.233
0.5430.3530.1230.5330.4740.3540.2450.1170.7100.2070.3950.1230.230
0.7300.1270.2100.185
0.1070.3490.3780.4480.1970.2380.6500.2820.2730.1320.0700.2180.1170.2100.405
0.1110.438
0.114
0.1160.390
+ partial pressure calculated by compiler using 1 bar = 750.062 mmHg
152 Hydrogen Sulfide in Aqueous Solvents
COMPONENTS:1. Hydrogen sulfide; H2S;
[7783-06-4]2. Carbon dioxide; CO 2 ; [124-38-9]3. Water; H20; [7732-18-5]4. Ethanol, 2,2'-iminobis
(diethanolamine); C4HllN02;[111-42-2]
VARIABLES:
Temperature, pressure
ORIGINAL MEASUREMENTS:Lal, D.; otto, F.D.; Mather, A.E.
Can.J.Chem.Eng. 1985, 63, 681 - 685.
PREPARED BY:
P.G.T. Fogg
EXPERIMENTAL VALUES:
Concentration of diethanolamine = 2.0 kmol m- 3 (2.0 mol dm- 3)
T/K PH2s
/kPa Pco/kPa Mole ratio in Mole ratio in
liquid, H2S/DEA liquid, CO 2/DEA
313.2 0.060 0.165 0.0182 0.1730.069 0.068 0.0352 0.1030.127 0.057 0.053 0.0830.329 0.224 0.055 0.1780.431 0.250 0.061 0.1820.187 0.070 0.064 0.0930.188 0.075 0.073 0.1010.410 0.070 0.083 0.1010.573 0.133 0.090 0.1300.784 0.470 0.090 0.2260.625 0.252 0.091 0.1800.782 0.369 0.092 0.2070.387 0.033 0.101 0.0580.524 0.057 0.105 0.0771 .057 0.270 0.119 0.165
AUXILIARY INFOR}~TION
METHOD/APPARATUS/PROCEDURE:
Apparatus described in ref. (1) was
used. Nitrogen was passed through
three 500 cm 3 stainless steel
vessels in series. These contained
amine solution, dissolved H2S and
CO 2 , Temperatures were controlled
to ± 0.5 K by an oil-bath. The gas
emerging from the last vessel was
analysed by gas chromatography.
Samples of liquid from this vessel
were analysed for H2S by
iodine-thiosulfate titration and for
CO 2 by precipitation as barium
carbonate and then titration with
hydrochloric acid.
SOURCE AND PURITY OF MATERIALS:
4. supplied by Dow chemicals.
ESTIMATED ERROR~
oT/K = ± 0.5 (authors)op/P = ± 0.15 at PH S > 0.05 kPa;larger at lower 2partial pressures (authors).
REFERENCES:
1. Isaacs, E.E.; otto, F.D.;Mather, A.E. J.Chem.Eng.Data 1980,25, 118.
COMPONENTS:
Hydrogen Sulfide in Aqueous Solvents
ORIGINAL MEASUREMENTS:
153
1. Hydrogen sulfide; H2S;[7783-06-4)
2. Carbon dioxide; C02; [124-38-9)3. Water; H20; [7732-18-5)4. Ethanol, 2,2'-iminobis
(diethanolamine); C4HllN02;[111-42-2)
EXPERIMENTAL VALUES:
Lal, D.; otto, F.D.; Mather, A.E.
Can.J.Chem.Eng. 1985, 63, 681 - 685.
Concentration of diethanolamine = 2.0 kmol m- 3 (2.0 mol dm- 3)
T/K Mole ratio in
liquid, H2S/DEA
Mole ratio in
liquid, C02/DEA
313.2
373.2
HSDS-F'
0.633 0.099 0.120 0.0950.700 0.048 0.131 0.0620.881 0.090 0.134 0.0931 .452 0.292 0.141 0.0720.930 0.062 0.153 0.1700.897 0.114 0.154 0.1071 .001 0.041 0.155 0.0451 .039 0.215 0.172 0.1461 .390 0.283 0.172 0.1481 .190 0.254 0.174 0.1491 .108 o•116 0.177 0.0901 .344 0.063 0.185 0.0681 .243 0.068 0.186 0.0672.231 0.450 0.191 0.1751 .405 0.365 0.198 0.1531 .004 0.141 0.200 0.0873.392 0.549 0.203 0.1821 .347 0.120 0.208 0.1002.286 0.525 0.209 0.1883.185 0.332 0.247 0.141
0.015 0.749 0.0064 0.0420.022 4.077 0.0064 0.0990.078 3.266 0.0095 0.0980.132 4.571 0.0100 0.1230.197 1.018 0.0142 0.0410.263 1.472 0.0155 0.0620.324 1 .423 0.0168 0.0590.467 1 .918 0.020 0.0640.651 4.015 0.022 0.1040.787 5.015 0.025 0.1050.304 0.0057 0.025 0.00480.762 1 .998 0.026 0.0600.680 4.668 0.027 0.1280.685 1 .294 0.030 0.0501.272 6.026 0.032 0.1370.614 4.548 0.033 0.0900.541 4.970 0.036 0.1001. 319 3.409 0.037 0.0910.614 0.426 0.037 0.0241 .460 3.739 0.041 0.087
154
COMPONENTS:
Hydrogen Sulfide in Aqueous Solvents
ORIGINAL MEASUREMENTS:
1. Hydrogen sulfide; H2 S;[ 7783-06-4)
2. Carbon dioxide; CO 2 ; [124-38-9)3. Water; H20; [7732-18-5)4. Ethanol, 2,2'-iminobis
(diethanolaminel; C4HIIN02;[111-42-2)
EXPERIMENTAL VALUES:
Lal, D.; otto, P.D.; Mather, A.E.
Can.J.Chem.Eng. 1985, 63, 681 - 685.
Concentration of diethanolamine = 2.0 kmol m- 3 (2.0 mol dm- 3 l
T/K
373.2 1.2652.1011 .1891 .6071 .9141 .8592.2132.2952.4891 .5671 .7401.9422.1771 .6233.1532.2923.2032.1163.2161 .9403.0352.2733.2213.5983.0003.6493.6463.0913.5553.4924.2643.2084.7934.1023.6755.7323.8684.8325.0674.726
PC0 2/kPa
1.6386.4690.7521 .8383.1403.5684.6475.2530.3931 .3051 .9193.5261.6990.7013.5474.3764.5190.3124.8730.1452.6671 .8432.4052.0072.8741 .5682.6920.2430.1050.1212.0480.7381 .7312.0930.0875.2340.1801.0390.8340.318
Mole ratio in
liquid, H2S/DEA
0.0430.0450.0450.0470.0470.0470.0470.0480.0490.0500.0500.0510.0560.0590.0600.0620.0650.0670.0690.0690.0720.0720.0740.0830.0840.0840.0860.0880.0930.0940.0940.0960.0970.1030.1030.1030.1060.1170.1190.124
Mole ratio in
liquid, COdDEA
0.0510.1060.0320.0600.0650.0770.1180.1150.0190.0500.0510.0830.0400.0270.0750.1000.0850.0130.1030.00820.0720.0530.0640.0550.0700.0350.0640.00760.00480.00770.0530.0240.0410.0390.00420.0820.00800.0310.0180.0092
COMPONENTS:
Hydrogen Sulfide in Aqueous Solvents
ORIGINAL MEASUREMENTS:
155
1. Hydrogen sulfide; H2S;[7783-06-4]
2. Carbon dioxide; C02; [124-38-9]3. Water; H20; [7732-18-5]4. 2-(2-Aminoethoxy)ethanol,
(diglycolamine); C4HllN02;[929-06-6]
VARIABLES:
Temperature, composition of liquidand gas phases.
EXPERIMENTAL VALUES:
Dingman, J.C.; Jackson, J.L.;Moore, T.F.; Branson, J.A.
Proc. 62nd Annual Convention of theGas Processors Association, 1983,256-268. --
PREPARED BY:
P.G.T. Fogg
Concentration of diglycolamine (DGA) in aqueous solution before additionof gas = 65 wt %
T/oF T/K* Mole ratio Partial pressure Partial pressurein liquid phase of CO 2 of H2SCOdDGA H2S/ DGA /psia /kPa* /psia /kPa*
100 310.9 0.0026 0 0.0000290 0.000200 0.0 00 0.0027 0.0 0 0.0000480 0.0003310 0.0029 0.0 0 0.000133 0.0009170 0.0039 0.0 0 0.0000580 0.0004000 0.0050 0.0 0 0.000232 0.001600 0.0104 0.0 0 0.00116 0.008000 0.0114 0.0 0 0.000812 0.005600.0140 0.0014 0.00029 0.00200 0.000062 0.0004270.0145 0.0030 0.00029 0.00200 0.000422 0.002910 0.0205 0.0 0 0.00296 0.02040.0213 0.0022 0.000319 0.00220 0.000319 0.002200.0271 0.0012 - - 0.0000430 0.0002960.0306 0.0010 0.000841 0.00580 0.0000810 0.0005580 0.0335 0.0 0 0.00723 0.04980 0.0412 0.0 0 0.00952 0.06560.0440 0.0020 0.0000870 0.000600 0.000319 0.002200.0474 0.0008 0.000232 0.00160 0.0000640 0.0004410.0503 0.0031 0.000232 0.00160 0.000841 0.005800.0537 0 0.000232 0.00160 0.0 00.0547 0.0023 - - 0.000435 0.003000.0624 0 0.000174 0.00120 0.0 00.0643 0.0010 0.000290 0.00200 0.000133 0.0009170.0630 0.0054 0.000232 0.00160 0.00263 0.01810.0610 0.0112 0.00104 0.00717 0.00422 0.02910 0.0820 0.0 0 0.0191 0.1320.0926 0 0.000890 0.00614 0.0 0
* calculated by the compiler.
AUXILIARY INFORMATION
METHOD/APPARATUS/PROCEDURE: SOURCE AND PURITY OF MATERIALS:
Aqueous solution of DGA (600 cm 3) was No information.
placed in a stainless steel equilibriumvessel of capacity 1700 cm 3
• The spaceabove the was flushed with methane andH2S and/or CO 2 passed into the vessel to ESTIMATED ERROR:appropriate partial pressures. The totalpressure was maintained at 1500 mmHg byaddition of methane. The vessel wasrocked in a constant temperature bath for1 - 2 h. The vapor phase was analysed REFERENCES:by gas chromatography. CO 2 in the liquidphase was determined by acidification andmeasurement of the evolved gas. The H2Sin this phase was determined by titrationwith standard copper(II) nitrate.
156 Hydrogen Sulfide in Aqueous Solvents
COMPONENTS: ORIGINAL MEASUREMENTS:
1. Hydrogen sulfide; H2S; Dingman, J.C.; Jackson, J.L.;[7783-06-4] Moore, T.P.; Branson, J.A.
2. Carbon dioxide; CO 2 ; [124-38-9]3. Water; H2O; [ 7732-18-5] Proc. 62nd Annual Convention of the4. 2-(2-Aminoethoxy)ethanol, Gas Processors Association, 1983,
(diglycolamine); C4HllN02; 256-268.[929-06-6]
EXPERIMENTAL VALUES:
Concentration of diglycolamine (OGA) in aqueous solution before additionof gas = 65 wt %
T/oP T/K* Mole ratio Partial pressure Partial pressurein liquid phase of CO 2 of H2SCO 2/OGA H2S/0GA /psia /kPa* /psia /kPa*
100 310.9 0.0935 0.0016 0.000957 0.00660 0.000725 0.005000.0960 0.0009 0.000580 0.00400 0.000120 0.0008270.0922 0.0107 0.000754 0.00520 0.00638 0.04400.1030 0.0 0.000638 0.00440 0.0 00.1000 0.0030 0.00551 0.0380 0.00197 0.01360.1110 0.0004 0.000638 0.00440 0.0000410 0.0002830.1150 0.0021 - - 0.00102 0.007030.0953 0.0235 0.000890 0.00614 0.0119 0.08200.1170 0.0062 0.00174 0.0120 - -0 0.1250 0.0 0 0.0638 0.4400.1250 0.0053 0.000609 0.00420 0.00395 0.02720.1350 0.0022 0.00113 0.00779 0.00193 0.01330.1540 0.0011 0.00116 0.00780 0.000870 0.006000.1600 0.0004 0.00122 0.00841 0.0000850 0.0005860.0470 0.1170 - - 0.105 0.7240.1650 0.0012 0.00145 0.0100 0.000580 0.004000.1680 0.0026 0.00197 0.0136 0.00317 0.02190 0.1760 0.0 0 0.0544 0.3750.0920 0.0880 - - 0.0302 0.2080 0.1940 0.0 0 0.142 0.9790 0.2190 0.0 0 0.208 1. 430.0900 0.1320 - - 0.115 0.7930.2250 0.0023 0.00308 0.0212 0.00354 0.02440.2280 0.0009 0.00337 0.0232 0.000841 0.005800 0.2300 0.0 0 0.186 1.280.0926 0.1380 0.00180 0.0124 0.185 1.280.2340 0.0004 0.00352 0.0243 0.000240 0.001650.1900 0.0470 - - 0.0841 0.5800.2500 0.0004 0.00575 0.0396 0.000422 0.002910.2660 0.0012 0.00275 0.0190 0.00183 0.01260.0460 0.2220 - - 0.319 2.200.1890 0.0800 - - 0.116 0.8000.2590 0.0102 0.00516 0.0356 0.0148 0.1020.1900 0.0800 - - 0.128 0.8830.2700 0.0020 0.00642 0.0443 0.00379 0.02610.2790 0.0050 0.00279 0.0192 0.00809 0.05580.0930 0.1920 - - 0.242 1.670 0.2920 0.0 0 0.244 1.680.2920 0 0.0108 0.0745 0.0 00.2910 0.0011 0.00747 0.0515 0.00296 0.02040 0.3000 0.0 0 0.263 1 .810.1870 0.1210 0.00967 0.0667 0.171 1 .180.3120 0.0009 0.0109 0.0752 0.00255 0.01760.2820 0.0422 0.0151 0.104 0.0468 0.3200.0920 0.2380 - - 0.389 2.680 0.3390 0.0 0 0.422 2.910.0920 0.2550 - - 0.545 3.760.1840 0.1680 0.0116 0.0800 0.267 1 .840.3590 0 0.0511 0.352 0.0 00.3620 0.0003 0.0209 0.144 0.00139 0.009580.2750 0.0882 0.0213 0.147 0.217 1.500.0930 0.2980 - - 0.696 4.800.0480 0.3450 - - 0.584 4.03
* calculated by the compiler.
COMPONENTS:
Hydrogen Sulfide in Aqueous Solvents
ORIGINAL MEASUREMENTS:
157
1. Hydrogen sulfide; H2S;[7783-06-4]
2. Carbon dioxide; C02; [124-38-9]3. Water; H20; [7732-18-5]4. 2-(2-Aminoethoxy)ethanol,
(diglycolamine); C4HllN02;[929-06-6]
EXPERIMENTAL VALUES:
Dingman, J.C.; Jackson, J.L.;Moore, T.F.; Branson, J.A.
Proc. 62nd Annual Convention of theGas Processors Association, 1983,256-268. ----
Concentration of diglycolamine (OGA) in aqueous solution before additionof gas = 65 wt %
T/OF T/K* Mole ratioin liquid phaseC02!OGA H2S/0GA
Partial pressureof CO 2
/psia /kPa*
Partial pressureof H2S
/psia /kPa*
100 310.9 0.17400.40300.26700.16600.39400.38800.39000.09300.0830o0.37300.24500.27200.08730.45000.45800.17000.26700.44500.09000.37600.50200.50600.49900.36700.48500.50000.26400.43100.46000.08900.36100.35200.1680o0.16300.24900.16800.08800.34800.5900o0.25100.16200.25100.15400.08800.0865o0.1800o0.09000.1610
0.2240o0.13600.23700.01090.01800.03400.33700.34700.43400.06100.19100.16800.35800.0064o0.29100.20000.02800.39000.1180oo0.00800.14200.02700.01600.25800.09170.06900.44000.17800.19600.38200.55200.39200.32600.41600.50300.2420o0.59200.35700.45000.36800.50800.57700.58300.68300.52700.70200.61300.5500
0.01390.06070.0344
0.04640.07490.0812
0.00.1250.05740.08410.006040.3480.286
0.05800.596
0.4121 .831.772.030.7583.752.360.145
11 .47.95
2.034.14
0.00.08410.8280.0812
6.7327.00.01 .440.1312.070.717
0.04290.00.8410.0
1 .31
0.09580.4190.237
0.3200.5160.560
o0.8620.3960.5800.04162.401 .97
0.3404.11
2.8412.612.214.0
5.2325.916.3
1 .0078.654.8
14.028.5
o0.5805.710.560
46.4186.2
o9.930.903
14.34.94
0.296o5.80o
9.03
0.5030.00.5570.7540.0503
0.1660.9171.000.9110.406
0.7371.060.06560.01 .311 .220.4451.081.640.00.00.2322.981.190.4492.518.274.761 .806.81
11. 43.092.243.319.284.803.21
17.60.02.75
14.36.79
18.119.0
6.426.675.51
21.65.808.76
27.1
3.47o3.845.200.347
1 .146.326.896.282.80
5.087.310.452o9.938.413.077.45
11 .3oo1 .60
20.58.203.10
17.357.032.812.447.078.621.315.422.864.033.122.1
121.3o
19.098.646.8
124.8131 .0
44.346.038.0
148.940.060.4
186.8
* calculated by the compiler.
158
COMPONENTS:
Hydrogen Sulfide in Aqueous Solvents
ORIGINAL MEASUREMENTS:
1. Hydrogen sulfide; H2S;[7783-06-4]
2. Carbon dioxide; CO 2 ; [124-38-9]3. Water; H20; [7732-18-5]4. 2-(2-Aminoethoxy)ethanol,
(diglycolamine); C4HllN02;[929-06-6]
EXPERIMENTAL VALUES:
Dingman, J.C.; Jackson, J.L.;Moore, T.F.; Branson, J.A.
Proc. 62nd Annual Convention of theGas Processors Association, 1983,256-268. ----
Concentration of diglycolamine (DGA) in aqueous solution before additionof gas = 65 wt %
T/OF T/K* Mole ratioin liquid phaseCO 2 /DGA H2S/ DGA
Partial pressureof CO 2
/psia /kPa*
Partial pressureof H2S
/psia /kPa*
100
140
160
180
310.9
333.2
344.3
355.4
o0.0890o0.06300.04600.08600.0490ooo
0.04430.12000.15300.12000.20300.04430.26000.09890.09440.25000.04190.14200.10730.23300.39800.36500.03700.15300.29100.02280.50200.49000.12100.01640.28300.20400.10800.1030
0.08300.17800.10200.4200
oo0.02030.0367o0.06160.06890.0423
0.71300.63000.74100.68300.70500.66900.74400.83000.83700.8510
0.04660.00950.00910.08780.00940.21300.00770.19500.24100.08610.30400.21100.28500.19400.04130.08160.41700.29700.20000.47500.00690.03250.40500.52000.27000.36800.51900.5360
0.25300.22200.36400.0620
0.01090.0157oo0.06230.01450.01090.0407
0.0
0.00.1160.03770.2320.1070.00.00.0
0.002300.01060.02530.01550.03310.006440.05570.02510.03910.09030.008700.04370.04680.2711.331 .21
1 .130.0124
12.123.0
0.1540.01733.711 .460.3210.627
0.06092.460.2017.14
0.00.00.004370.01970.00.04350.04350.0250
o
o0.8000.2601.600.738ooo
0.01590.07310.1740.1070.2280.04440.3840.1730.2700.6230.06000.3010.3231.879.178.34
7.790.0855
83.4158.6
1 .060.119
25.610.1
2.214.32
0.42017 .0
1 .3949.2
oo0.03010.136o0.3000.3000.172
6.3212.77.76
10.310.415.821.220.022.222.5
0.07540.01170.0263
0.03960.9560.04511 .161 .800.6212.221. 732.803.171 .252.374.414.846.965.800.7164.228.188.51
19.419.517.626.8
3.1322.28.864.62
0.01100.04640.00.00.2710.08700.03770.296
43.687.653.571.071.7
108.9146.2137.9153.1155.1
0.5200.08070.181
0.2736.590.3118.00
12.44.28
15.311.919.321.9
8.6216.330.433.348.040.0
4.9429.156.458.7
133.8134.4121 .3184.8
21 .6153.1
61 .131.9
0.07580.320oo1.870.6000.2602.04
* calculated by the compiler.
COMPONENTS:
Hydrogen Sulfide in Aqueous Solvents
ORIGINAL MEASUREMENTS:
159
1. Hydrogen sulfide; H2S;[7783-06-4]
2. Carbon dioxide; CO 2 ; [124-38-9]3. Water; H20; [7732-18-5]4. 2-(2-Aminoethoxy)ethanol,
(diglycolamine); C4HllN02;[929-06-6]
EXPERIMENTAL VALUES:
Dingman, J.C.; Jackson, J.L.;Moore, T.F.; Branson, J.A.
Proc. 62nd Annual Convention of theGas Processors Association, 1983,256-268. ----
Concentration of diglycolamine (DGA) in aqueous solution before additionof gas = 65 wt %
T/OF T/K* Mole ratioin liquid phaseC02/DGA H2S/DGA
Partial pressureof CO 2
/psia /kPa*
Partial pressureof H2 S
/psia /kPa*
0.1250.00.8240.08991.570.01.073.081.180.2553.134.530.00.8820.2505.225.267.587.540.05.924.535.261.530.592
16.415.37.20
23.422.2
4.801.380.0
24.816.426.526.5
180 355.4 0.09760.11600.03720.1180o0.16400.08730.04020.14800.22300.0820o0.25900.22600.28700.09300.1660o0.03680.33300.08800.21600.20900.32500.35500.10200.35200.41400.15500.21700.43700.47400.48800.0966o0.0639o
0.0147o0.08590.01130.1450o0.08500.17600.07010.01510.11600.2590o0.04170.01030.20900.15700.32400.2890o0.24800.12500.13500.04170.01510.35300.11600.05930.32100.26000.04010.0113o0.40100.50800.46100.5270
0.08970.08740.03310.08780.00.1470.1020.04490.2300.4180.1260.00.5880.5570.8550.1860.5340.00.08591 .440.1860.9440.9521 .912.550.631
12.214.6
2.093.40
19.323.826.50.8070.00.3910.0
0.6180.6030.2280.605o1 .010.7030.3101.592.880.869o4.053.845.901.283.68o0.5929.931.286.516.56
13.217 .6
4.3584.1
100.714.423.4
133.1164.1182.7
5.56o2.70o
0.862o5.680.620
10.8o7.38
21.28.141. 76
21 .631.2o6.081. 72
36.036.352.352.0o
40.831.236.310.5
4.0811 3 • 1105.5
49.6161 .3153.1
33.19.51o
171 .011 3.1182.7182.7
Concentration of DGA before addition of gas = 70 wt %
140160180
333.2344.3355.4
0.32300.31900.3180
0.02300.02200.0230
0.1840.6231. 75
1.274.30
12.1
0.2630.5960.971
1.814.116.69
* calculated by the compiler.
160 Hydrogen Sulfide in Aqueous Solvents
COMPONENTS:1. Hydrogen sulfide; H2S;
[ 7783-06-4)2. Carbon dioxide; CO 2 ; [124-38-9)3. Water; H20; [7732-18-5)4. 1,1 '-Iminobis-2-propanol,
(diisopropanolarnine); C6H1SN02;[110-97-4)
VARIABLES:
Temperature, pressure, concentrationof components in liquid phase.
ORIGINAL MEASUREMENTS:Isaacs, E.E.; otto, F.D.; Mather,A.E
Can. J. Chern. Eng. 1977, 55, 210-212(Complete data in the Centre forUnpublished Data, National ScienceLibrary, National Research Council,Ottawa, Ontario K1A OS2, Canada.)
PREPARED BY:P.G.T. Fogg
EXPERIMENTAL VALUES:
Concentration of OIPA (diisopropanolamine) = 2.5 kmol m- 3 (2.5 mol dm- 3)
T/K PH2s
/kPa Pco/kPa Mole ratios in liquid phaseH2S/DIPA CO 2 /OIPA
313.2 2231.1 201 .3 1 .316 0.0511569.2 104.1 1 .213 0.0401597.5 188.9 1 .174 0.0781969.1 481 .2 1 .130 0.1381687.8 403.3 1 .128 0.1661638.8 328.8 1 .079 0.1431090.0 85.4 1 .057 0.0451307.9 268.2 1 .021 0.1291677.4 758.4 1 .010 0.2461374.8 406.0 1 .001 0.1662091.1 432.2 0.994 0.1182138.0 1396.8 0.976 0.3701119.0 247.5 0.975 0.1421855.3 1263.1 0.956 0.392683.2 63.4 0.933 0.059
1113.4 404.7 0.899 0.2231300.3 646. 7 0.891 0.3071654.0 1411.3 0.877 0.399
776.3 197.1 0.861 0.142
AUXILIARY INFORMATION
METHOD/APPARATUS/PROCEDURE:
The equilibrium cell consisted of aJerguson gauge with a 250 cm 3
tubular gas reservoir mounted at thetop. Gas was circulated with amagnetic pump (1). Temperatures weremeasured by thermopiles andcontrolled by an air-bath.Pressures were measured by a Heisebourdon tube gauge. The cell wascharged with about 150 cm 3 of OIPAsolution. H2S & CO 2 were added togive appropriate pressures. Nitrogenwas added when necessary to ensurethat the total pressure was above600 kPa. Gases were circulated forat least 4 h. The gas phase wasanalysed by gas chromatography andthe liquid phase by treating sampleswith H2S0 4 (7 mol dm- 3
), recordingP-V-T data for the gases evolved andanalysing them by gaschromatography.
SOURCE AND PURITY OF MATERIALS:
No information
ESTIMATED ERROR:oT/K = ± 0.5o(C0 2/OIPA); o(H 2S/OIPA) = ± 0.02 or4%, whichever is the larger
(authors)REFERENCES:
1. Ruska, W.E.A.; Hurt, L.J.;Kobayashi, R.
Rev. Sci. Inst. 1979, 41, 1444.
COMPONENTS:
Hydrogen Sulfide in Aqueous Solvents
ORIGINAL MEASUREMENTS:
161
1. Hydrogen sulfide; H2S;[7783-06-4]
2. Carbon dioxide; CO 2 ; [124-38-9]3. Water; H20; [7732-18-5]4. 1,1 '-Iminobis-2-propanol,
(diisopropanolamine); C6H1SN02;[110-97-4]
EXPERIMENTAL VALUES:
Isaacs, E.E.; otto, F.D.; Mather,A.E.
Can. J. Chem. Eng. 1977, 55, 210-212.(Complete data in the Centre forUnpublished Data, National ScienceLibrary, National Research Council,Ottawa, Ontario K1A 082, Canada.)
Concentration of DIPA (diisopropanolamine) = 2.5 kmol m- 3 (2.5 mol dm- 3)
T/K Mole ratios in liquid phaseH2S/DIPA CO 2/DIPA
313.2 499.81072.1
914.9349.5
2140.8447.4206.1505.3379.2595.7888.7255.7186.1
85.41958.0144.7117 .8710.1
44.1113.0
80.62496.51891.2150.9734.9106.1
40.6106.1
70.341.3
488.159.299.2
230.224.139.215.817.9
1313.415.8
275.086.158.646.148.915.8
118.584.1
311 .668.2
48.9512.2427.4
35.12332.4
121. 319.9
461 .2192.311 0.3669.4109.6
62.013.0
3834.162.032.4
843.25.5
28.223.4
3810.04177.4133.0
1227.996.515.184.134.413.0
922.532.485.4
336.44.8
16.52.06.2
4489.84.1
663.2164.7
93.048.282.79.6
286.8159.2
1027.9111. 6
0.8590.8560.8210.8110.7900.7220.7190.6550.6510.6500.5980.5940.5930.5830.5540.5350.5000.4980.4980.4980.4700.4370.4320.4180.4170.4110.3970.3870.3810.3790.3770.3760.3700.3670.3660.3420.3410.3390.3290.3270.2580.2540.2530.2510.2510.2390.2390.2360.2330.231
0.0630.2910.2620.0730.5310.1680.0790.3520.2570.0910.3640.2570.1900.0940.7560.2470.1970.5360.1260.2100.1980.8410.8510.3650.6550.3220.2190.3540.2910.2300.6530.2830.3550.5240.1680.2530.0970.1680.9030.1750.6650.5040.4290.3640.4440.2610.5360.4980.7370.464
162
COMPONENTS:
Hydrogen Sulfide in Aqueous Solvents
ORIGINAL MEASUREMENTS:
1. Hydrogen sulfide; H2S;[7783-06-4)
2. Carbon dioxide; CO 2 ; [124-38-9)3. Water; H20; [7732-18-5)4. 1,1 '-Iminobis-2-propanol,
(d2isopropanolamine); C6H1SN02;[110-97-4)
EXPERIMENTAL VALUES:
Isaacs, E.E.; Otto, F.D.; Mather,A.E.
Can. J. Chem. Eng. 1977, 55, 210-212.(Complete data in the Centre forUnpublished Data, National ScienceLibrary, National Research Council,Ottawa, Ontario K1A OS2, Canada.)
Concentration of DIPA (diisopropanolamine) = 2.5 kmol m- 3 (2.5 mol dm- 3)
T/K Mole ratios in liquid phaseH2S/DIPA C02/DIPA
313.2
373.2
894.999.2
273.0273.7894.9
47.5204.028.2
326.1237.1
15 • 110.331.013.0
216.4517.7438.5226.8430.9158.5128.2
1.31 .33.43.46.2
17 .222.0
4126.41797.41819.52748.91851 .91107.92137.31103.11475.42151.12363.5606.0504.6
2080.1875.6617.7
2002.92220.0
591.5774.9810.1753.5
4896.6172.3
1489.9911. 4
4833.1106.1
1047.322.7
3109.51540.9
42.726.8
101. 325.5
5282.05276.54555.33224.65391 .63678.32625.5
8.911 .022.022.770.3
318.5549.5
574.3523.9754.9
2475.11392.7
237.11375.4
324.7999.7
2273.83261.1
212.356.5
4123.0373.6236.4
4029.93727.9
191 .6346.1894.9951 .4
0.2290.2280.2210.2160.1910.1820.1650.1650.1500.1450.1240.1220.1220.1210.1150.115o•1110.0980.0760.0710.0470.0450.0420.0410.0410.0350.0310.028
1.2540.9030.8290.8240.8090.7960.7650.7570.7070.6530.6290.6170.6020.5910.5790.5750.5590.5510.5510.5470.5160.480
0.9700.4940.8020.7301 .0200.4920.7770.3510.9400.8690.4540.4100.5310.4091.0301.0521 .0530.9991.0891.0671 .0110.3650.3920.4650.4520.5540.7310.791
0.0590.0790.1170.2730.1760.0650.2340.0830.2020.3370.3810.0950.0390.4560.1500.0980.4760.4740.0840.1610.2550.278
COMPONENTS:
Hydrogen Sulfide in Aqueous Solvents
ORIGINAL MEASUREMENTS:
163
1. Hydrogen sulfide; H2S;[7783-06-4 ]
2. Carbon dioxide; C02; [124-38-9]3. Water; H20; [7732-18-5]4. 1,1 '-Iminobis-2-propanol,
(diisopropanolamine); C6H1SN02;[110-97-4]
EXPERIMENTAL VALUES:
Isaacs, E.E.; otto, F.D.; Mather,A.E.
Can. J. Chem. Eng. 1977, 55, 210-212.(Complete data in the Centre forUnpublished Data, National ScienceLibrary, National Research Council,Ottawa, Ontario K1A OS2, Canada.)
Concentration of DIPA (diisopropanolamine) = 2.5 kmol m- 3 (2.5 mol dm- 3)
T/K Mole ratios in liquid phaseH2S/DIPA C02/DIPA
373.2 313.7395.7332.3890.1868.7244.7
1567.81109.3
708.0434.3185.4
1296.8162.0211 .6218.5725.3253.0
1005.2146.8384.0219.9302.6
1213.4129.6128.2150.9392.9222.0447.479.280.6
133.0472 .9318.5172.3203.3155.8230.9
53.7187.5224.7
48.9319.2215.1
36.568.9
717.031 .0
344.7374.3
62.0170.9
55.81650.51613.3
35.14374.61851.91233.4
385.448.2
3230.837.2
140.6157.1
1838.8261 .9
2676.526.8
677.7154.4427.4
4767.668.936.5
117.21094.8
288.81272.0
29.617 .2
175.11990.41074.1144.7532.9257.8854.916.5
451 .6743.2
19.31349.2
741.89.6
54.45274.4
11 .02031.83219.8
0.4670.4590.4520.4450.4360.4350.4280.4270.4210.4070.3850.3840.3710.3690.3570.3530.3470.3360.3350.3220.3100.3060.2950.2930.2890.2840.2740.2570.2560.2530.2500.2410.2390.2300.2270.2260.2160.2120.2120.2100.2100.2070.2050.2040.1850.1840.1810.1560.1540.145
0.0600.1150.0530.3580.3530.0490.5370.3800.3090.1790.0810.4650.0600.1390.1 510.4110.2170.5010.0440.2850.1510.2750.6100.1130.0790.1450.3950.2470.4100.0740.0430.1920.5130.4030.1950.3120.2280.3610.0500.2860.3870.0680.4580.3340.0500.1250.6830.0660.5390.600
164
COMPONENTS:
Hydrogen Sulfide in Aqueous Solvents
ORIGINAL MEASUREMENTS:
1. Hydrogen sulfide; H2S;[7783-06-4]
2. Carbon dioxide; C02; [124-38-9]3. Water; H20; [7732-18-5]4. 1,1 '-Iminobis-2-propanol,
(diisopropanolamine); C6H1SN02;[110-97-4]
EXPERIMENTAL VALUES:
Isaacs, E.E.; otto, P.D.; Mather,A.E
Can. J. Chem. Eng. 1977, 55, 210-212(Complete data in the Centre forUnpublished Data, National ScienceLibrary, National Research Council,ottawa, Ontario K1A OS2, Canada.)
Concentration of DIPA (diisopropanolamine) = 2.5 kmol m- s (2.5 mol dm- s )
T/K PH2s /kPa Pco/kPa Mole ratios in liquid phaseH2S/DIPA C02/DIPA
373.2 794.9 4421.5 0.134 0.71543.4 63.4 0.133 0.16153.7 230.9 0.133 0.25825.5 24.1 0.132 0.097
103.4 437.8 0.131 0.32044.8 88.2 0.130 0.18661.3 204.7 0.130 0.264
421 .9 3872.0 0.129 0.704361 .9 3854.1 0.125 0.70732.7 44.5 0.124 0.12192.3 530.2 0.120 0.38794.4 661 .2 0.119 0.40466.8 276.4 0.117 0.30028.9 35.8 0.106 0.106
107.5 1119.0 0.105 0.467196.4 4474.6 0.105 0.699
24.1 22.0 0.103 0.08942.7 88.9 0.101 0.19346.8 177 .8 0.098 0.258
144.0 3454.2 0.097 0.609312.3 5991.4 0.094 0.76242.0 63.4 0.090 0.19870.3 424.7 0.090 0.355
173.0 5239.9 0.087 0.975278.5 5543.3 0.082 0.775323.3 7391.1 0.080 0.825
8.2 4.8 0.064 0.0366.8 4.1 0.063 0.0369.9 22.5 0.054 0.1025.5 4.1 0.053 0.037
11.3 33.8 0.047 0.13495.8 5885.3 0.025 0.78319.9 5619.1 0.018 0.747
152.3 5591 .6 0.005 0.75411 .0 3157.7 0.002 0.644
COMPONENTS:
Hydrogen Sulfide in Aqueous Solvents
ORIGINAL MEASUREMENTS:
165
1. Hydrogen sulfide; H2S;[ 7783-06-4]
2. Carbon dioxide; CO 2 ; [124-38-9]3. Water; H20; [7732-18-5]4. 1,1 '-Iminobis-2-propanol,
(diisopropanolamine); C6H1SN02;[110-97-4]
EXPERIMENTAL VALUES:
Isaacs, E.E.; otto, F.D.; Mather,A.E.
Can. J. Chem. Eng. 1977, 55, 210-212.(Complete data in the Centre forUnpublished Data, National ScienceLibrary, National Research Council,Ottawa, Ontario K1A OS2, Canada.)
The tables give values of the mole ratio H2S/DIPA in the liquid phase forvarious partial pressures of H2S in the gas phase and mole ratios C02/DIPAin the liquid phase.
Concentration of DIPA = 2.5 kmol m- 3 (2.5 mol dm- 3)
Mole ratioCO 2/DIPA 0.000 0.100 0.200 0.300 0.400 0.500 0.600
T/K
313.2
PH 2S/kPa
1 .03.16
10.031.6
100316
10003000
0.0630.1850.3350.5650.7520.9021 .1261 .620
0.045*0.158*0.2900.4580.6120.7590.9831 .458
0.028*0.136*0.2530.3830.5100.6700.9071 .255*
0.015*0.1080.2050.3100.4290.6060.8381 .165*
0.006*0.0690.1330.2130.3380.5270.7721 .080*
0.029*0.0750.1430.2480.4400.6770.960*
0.010*0.0450.0920.1700.3470.5700.850*
Mole ratioCO 2/DIPA 0.700 0.800 0.900 1 .000 1 .100 1 .200
T/K
313.2
PH2S
/kPa
10.031.6
100316
10003000
0.0240.0630.1330.2630.4720.720*
0.0390.1020.2020.3700.622*
0.0180.0720.1600.2930.488*
I
0.005*0.0470.1230.2320.405*
0.029*0.088*0.1850.340*
0.018*0.067*0.1550.288*
Mole ratioC02!DIPA 0.000 0.100 0.200 0.300 0.400 0.500
T/K
373.2
PH2S /kPa
3.1610.031 .6
100316
10003000
0.0250.0860.1780.3110.5410.8801 .200
0.018*0.0520.1380.2450.4230.7051 .042
0.010*0.0360.0920.2000.3460.5800.880
0.0280.0650.1500.2860.4900.770
0.0200.0530.1200.2390.4120.665
0.015*0.0410.0930.1890.3370.552*
Mole ratioC02!DIPA
T/K PH2S /kPa
373.2 10.031 .6
100.0316
10003000
0.600
0.010*0.0230.0730.1420.2720.470*
0.700
0.016*0.058o•1110.2120.397*
0.800
0.0370.080*0.163*0.331*
0.900
0.024*0.058*0.130*0.286*
1 .000
0.018*0.039*0.107*0.250*
* extrapolated values given by the authors.