Characterization of Some Kurdistan Crude Oils Based on Data Analysis of ASTM Distillation
Prepared by
Adulsamad Abdulhameed, Zahra Fakhir, and Haval Fatah3rd stage students, Faculty of Engineering, Chemical Engineering Department
Supervised by Prof. Dr. Ibtisam Kamal
Soran University/ Faculty of Engineering – Chemical Engineering Department
17th -18th May 2016
Contents• Introduction• Objectives• Experimental part• Estimated Data• Data Analysis• Results and discussion • Conclusions
IntroductionThe composition of the crude oil usually, is approximated as measured by True Boiling Point (TBP) distillation, this method is basically a batch distillation using number of stages and a high reflux ratio. However, the analytical procedure is expensive and time consuming, which is inappropriate for quick estimation of crude oil distillation characteristics.
Distillation Curve & The crude petroleum cuts Petroleum Distillation Tower and Products
Each type of crude oil will have a different, unique distillation curve that helps to describe it. As is shown, the distillation curve can be marked with the approximate locations of the fractions one will get out of the crude.
ASTM DistillationThere are many different types of ASTM distillation methods. These methods are laboratory tests, they are:
Simple distillation carried out with standard ASTM flask of 100, 200, 500 ml capacity. No reflux is provided. Rapid batch distillation employing no trays or reflux between the still pot and
condensation.
However, the separation is poorer: more volatile and high volatile components are present in initial condition.
Objectives
• Characterization of the volatility of three samples of crude oils from Tawke Field/ Zakhu Block operated by DNO, using ASTM Distillation Test.
• Estimation of the True Boiling Point Distillation data based on mathematical correlations.
• The analysis of distillation date will resulted in identification the distillation parameters including: IBP, FBP, BP range,
• Other characteristics could be estimated including Watson Factor (K), Correlation Index (CI),
Experimental part (Table of data)
% Volume
Distillate
Sample 1, Sp gravity =0.905
Sample 2, Sp gravity =0.914
Sample 3, Sp gravity= 0.919
Temp. oF Temp. oF Temp. oF
0 404 412 430
5 415 420 441
10 419 428 451
20 435 443 464
30 449 456 476
40 456 462 483
50 468 478 501
60 483 492 513
70 490 499 523
80 513 521 542
90 532 544 568
95 552 569 588
TBP and ASTM distillation:
Sample3 Sample 2 Sample 1
%VolumeDistillate
TBP(oC)
ASTM (oC)
TBP(oC)
ASTM(oC)
TBP(oC)
ASTM(oC)
185.82 221.11 177.55 212.22 172.38 206.67 0
219.82 232.78 206.26 220 200.97 215 10
243.33 246.67 231.83 235.56 227.8 231.67 30
264.08 260.55 256.17 247.78 245.31 242.22 50
282.16 272.78 268.29 259.44 263.09 254.44 70
311.61 297.78 297.81 284.44 290.91 277.78 90
323.47 308.89 312.27 298.33 302.25 288.89 95
Data analysis (Results and discussion)
Sample 3,Sp gravity =0.919
Sample 2,Sp gravity =0.914
Sample 1,Sp gravity =0.905
Properties
185.82 177.55 172.38 IBP of TBP
323.47 312.27 302.25 FBP of TBP
221.11 212.22 206.67 IBP of ASTM
308.89 298.33 288.89 FBP of ASTM
22.47 (Medium)
23.31 (Medium)
24.85 (Medium)
API
2.07
2.06 2.024 SL
Graphs:
0 10 20 30 40 50 60 70 80 90 1000
50100150200250300350
Sample 1
ASTM Distillation TBP Distillation
Volume % Distilled
Tem
pera
ture
( oC
)
0 10 20 30 40 50 60 70 80 90 1000
50100150200250300350
Sample 2
ASTM Distillation TBP Distillation
Volume % Distilled
Tem
pera
ture
( oC
)
0 10 20 30 40 50 60 70 80 90 1000
50100150200250300350
Sample 3
ASTM Distillation TBP Distillation
Volume % distilled
Tem
pera
ture
( oC
)
Conclusions
Thank You For Your Listening