A straw oil used to absorb benzene from coke-oven gas is to be steam stripped in a sieve- plate column at atmospheric pressure to recover the dissolved benzene, C6H6. Equilibrium conditions at the operating temperature are approximated by Henry’s law such that, when the oil phase contains 10 mol% benzene, the equilibrium benzene partial pressure above the oil is 5.07 kPa. The oil may be considered non-volatile. It enters the stripper containing 8 mol% benzene, 75% of which is to be removed. The steam leaving contains 3 mol% C6H6. How many theoretical stages are required? Note: Equilibrium line is expressed as: yA,i = 0.5xA,i
A straw oil used to absorb benzene from coke-oven gas is to be steam stripped in a sieve- plate column at atmospheric pressure to recover the dissolved benzene, C6H6. Equilibrium conditions at the operating temperature are approximated by Henry’s law such that, when the oil phase contains 10 mol% benzene, the equilibrium benzene partial pressure above the oil is 5.07 kPa. The oil may be considered non-volatile. It enters the stripper containing 8 mol% benzene, 75% of which is to be removed. The steam leaving contains 3 mol% C6H6. How many theoretical stages are required? Note: Equilibrium line is expressed as: yA,i = 0.5xA,i
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
Section: Chapter Questions
Problem 1.1P
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A straw oil used to absorb benzene from coke-oven gas is to be steam stripped in a sieve-
plate column at atmospheric pressure to recover the dissolved benzene, C6H6. Equilibrium
conditions at the operating temperature are approximated by Henry’s law such that, when the
oil phase contains 10 mol% benzene, the equilibrium benzene partial pressure above the oil is
5.07 kPa. The oil may be considered non-volatile. It enters the stripper containing 8 mol%
benzene, 75% of which is to be removed. The steam leaving contains 3 mol% C6H6. How many
theoretical stages are required?
Note: Equilibrium line is expressed as: yA,i = 0.5xA,i
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