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I, A mixture containing 50 mol percent of benzene and toluene is to be separated to give a product of 96 mol percent of benzene at the top, and a bottom product with not more than 5 mol percent of benzene. The feed is heated so that it enters the column at its boiling point, and the vapor leaving the column is condensed but not cooled, and provides reflux and product. The reflux ratio used to operate unit is 1.2 times of the minimum. The relative volatility of the system is 2.5 under the operating conditions. (1) Calculate the ratio of overhead product to feed D/F; (2) Show the operating line equation of the rectifying section and stripping section.

I, A mixture containing 50 mol percent of benzene and toluene is to be separated to give a product of 96 mol percent of benzene at the top, and a bottom product with not more than 5 mol percent of benzene. The feed is heated so that it enters the column at its boiling point, and the vapor leaving the column is condensed but not cooled, and provides reflux and product. The reflux ratio used to operate unit is 1.2 times of the minimum. The relative volatility of the system is 2.5 under the operating conditions. (1) Calculate the ratio of overhead product to feed D/F; (2) Show the operating line equation of the rectifying section and stripping section.

Introduction to Chemical Engineering Thermodynamics
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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1, A mixture containing 50 mol percent of benzene and toluene is to be separated to give a product of 96 mol percent of benzene at the top, and a bottom product with not more than 5 mol percent of benzene. The feed is heated so that it enters the column at its boiling point, and the vapor leaving the column is condensed but not cooled, and provides reflux and product. The reflux ratio used to operate unit is 1.2 times of the minimum. The relative volatility of the system is 2.5 under the operating conditions. (1) Calculate the ratio of overhead product to feed D/F; (2) Show the operating line equation of the rectifying section and stripping section.
Transcribed Image Text:1, A mixture containing 50 mol percent of benzene and toluene is to be separated to give a product of 96 mol percent of benzene at the top, and a bottom product with not more than 5 mol percent of benzene. The feed is heated so that it enters the column at its boiling point, and the vapor leaving the column is condensed but not cooled, and provides reflux and product. The reflux ratio used to operate unit is 1.2 times of the minimum. The relative volatility of the system is 2.5 under the operating conditions. (1) Calculate the ratio of overhead product to feed D/F; (2) Show the operating line equation of the rectifying section and stripping section.
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