Slide 1
B. Tech. Petrochemical Engineering
Multicomponent DistillationUniversity College of Engineering (A)
KakinadaDept. of Petroleum Engineering & Petrochemical
EngineeringPROGRAM ON MULTICOMPONENT-Lewis Matheson Method using
Bonner's Feed match techniqueJawaharlal Nehru Technological
University KakinadaProf. K. V. RaoProgramme DirectorPetroleum
CoursesJNTUKLewis Matheson Method: Feed Plate MatchingThe
correction method of Bonner can be used to establish a new value of
D, di, and xiD,
Where (xF)T and (xF)B = Liquid compositions calculated from the
top and bottom of the column, respectively di, bi = the former
moles of individual component in the distillate and bottoms diN,
biN = the new valuesRepetitive calculations are carried out by
readjusting the mole of components in the distillate and bottoms
until the agreement at the feed plate is met.2REM PROGRAM ON
MULTICOMPONENT-Lewis Matheson Method using Bonner's Feed match
technique DIM Y(10, 100), X(10, 100), XHK(100), YHK(100), XF(10),
A(10), D1(10), BI(10), DELD(10), ALPHA(10) READ NC, NT, NAF, NBF,
HK, LK FOR I = 1 TO NC READ Y(I, 1), X(I, NT), ALPHA(I) NEXT I READ
D, B, RV, RL, SV, SL, R, Q NF = NAF + 1 NIT = 139 I = 110 YHK(I) =
Y(HK, I) SUM = 0 FOR J = 1 TO NC SUM = SUM + Y(J, I) / (ALPHA(J) *
YHK(I)) NEXT J XHK(I) = 1 / SUM FOR J = 1 TO NC X(J, I) = Y(J, I) *
XHK(I) / (ALPHA(J) * YHK(I)) NEXT J K = I + 1 FOR J = 1 TO NC Y(J,
K) = X(J, I) * (R / (R + 1)) + Y(J, 1) / (R + 1): NEXT J IF K >
NF THEN 100 I = K: GOTO 104100 FOR J = 1 TO NC XF(J) = X(J, NF)
NEXT J M = NT110 XHK(M) = X(HK, M) SUM = 0 FOR J = 1 TO NC SUM =
SUM + ALPHA(J) * X(J, M) / XHK(M) NEXT J YHK(M) = 1 / SUM FOR J = 1
TO NC Y(J, M) = ALPHA(J) * YHK(M) * X(J, M) / XHK(M) NEXT J L = M -
1 FOR J = 1 TO NC X(J, L) = SV * Y(J, M) / SL + B * X(J, NT) / SL
NEXT J5IF L = NF THEN 200 M = L: GOTO 110200 FOR J = 1 TO NC A(J) =
ABS(XF(J) - X(J, NF)) IF A(J)>10 E-4 THEN 300 NEXT J: GOTO
400300 NIT = NIT + 1: PRINT "NIT="; NIT IF NIT > 100 THEN 1000
SD = 0: SB = 0 FOR J = 1 TO NC DI(J) = D * Y(J, 1): BI(J) = B *
X(J, NT)6DELD(J) = (X(J, NF) - XF(J)) / (XF(J) / DI(J) + X(J, NF) /
BI(J)) DI(J) = DI(J) + DELD(J): BI(J) = BI(J) - DELD(J): SD = SD +
DI(J): SB = SB + BI(J) NEXT J: D = SD: B = SB FOR J = 1 TO NC Y(J,
1) = DI(J) / D: X(J, NT) = BI(J) / B: NEXT J: SL = R * D + Q * F:
SV = D * (R + 1) - F * (1 - Q): GOTO 97400 PRINT NT, NAF, NBF, NIT
FOR J = 1 TO NT FOR I = 1 TO NC PRINT J, X(I, J), Y(I, J) NEXT I, J
FOR I = 1 TO NC PRINT I, DI(I), BI(I) NEXT I PRINT D, B: END1000
PRINT "LIMIT ON NUMBER OF ITERATIONS EXCEEDED" END8DATA
4,16,6,9,3,2 DATA .19,.0005,2.75 DATA .729,.0135,2.11 DATA
.069,.449,1 DATA .012,.537,.8 DATA
25,75,100,75,100,175,2.9125,19
Thank You10
