An air stream flowing at 1500 kmol/h containing benzene vapor is to be scrubbed in a packed bed using 1-in, ceramic Berl saddles using 250 kmol/h of hexadecane as the solvent. The mole fraction of benzene in the inlet air is 0.01, and the required outlet mole fraction is 0.0005. The hexadecane is being returned to the scrubber from a stripper, so the inlet mole faction of benzene in hexadecane is 0.0001. The column may be assumed to operate at 150 kPa and 35°C. Raoult's law may be assumed to define the benzene equilibrium. a. Determine the diameter of the packed column for 75% of flooding. b. Determine the pressure drop per unit height in the column. Data provided: Antoine Coefficients A B C SG μ (P) Benzene 6.90565 1211.033 220.79 Hexadecane 0.770 3.4

Introduction to Chemical Engineering Thermodynamics
8th Edition
ISBN:9781259696527
Author:J.M. Smith Termodinamica en ingenieria quimica, Hendrick C Van Ness, Michael Abbott, Mark Swihart
Publisher:J.M. Smith Termodinamica en ingenieria quimica, Hendrick C Van Ness, Michael Abbott, Mark Swihart
Chapter1: Introduction
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An air stream flowing at 1500 kmol/h containing benzene vapor is to be scrubbed in a packed
bed using 1-in, ceramic Berl saddles using 250 kmol/h of hexadecane as the solvent. The mole
fraction of benzene in the inlet air is 0.01, and the required outlet mole fraction is 0.0005. The
hexadecane is being returned to the scrubber from a stripper, so the inlet mole faction of
benzene in hexadecane is 0.0001. The column may be assumed to operate at 150 kPa and 35°C.
Raoult's law may be assumed to define the benzene equilibrium.
a. Determine the diameter of the packed column for 75% of flooding.
b. Determine the pressure drop per unit height in the column.
Data provided:
Antoine Coefficients
A
B
C
SG
μ (P)
Benzene
6.90565
1211.033
220.79
Hexadecane
0.770
3.4
Transcribed Image Text:An air stream flowing at 1500 kmol/h containing benzene vapor is to be scrubbed in a packed bed using 1-in, ceramic Berl saddles using 250 kmol/h of hexadecane as the solvent. The mole fraction of benzene in the inlet air is 0.01, and the required outlet mole fraction is 0.0005. The hexadecane is being returned to the scrubber from a stripper, so the inlet mole faction of benzene in hexadecane is 0.0001. The column may be assumed to operate at 150 kPa and 35°C. Raoult's law may be assumed to define the benzene equilibrium. a. Determine the diameter of the packed column for 75% of flooding. b. Determine the pressure drop per unit height in the column. Data provided: Antoine Coefficients A B C SG μ (P) Benzene 6.90565 1211.033 220.79 Hexadecane 0.770 3.4
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