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A distillation unit consists of a partial reboiler, a bubble cap column, and a total condenser. The overall plate efficiency is 65%. The feed is a liquid mixture, at its bubble point, consisting of 50 mole% benzene in toluene. This liquid is fed to the optimum plate. The column is to produce a distillate containing 9š mole% benzene and a bottoms of 95 mole% toluene. Calculate for an operating pressure of I atm: (a) Minimum reflux ratio (L/D)min- (b) Minimum number of actual plates to carry out the desired separation. (c) Using a reflux ratio (LID) of 50% more than the minimum, the number of actual plates needed. Equilibrium data In mole fraction benzene, 101 kPa 0.96 0.9 0.98 0.95 0.86 0.91 0.8 0.72 0.79 0.6 0.21 0.37 0.2 0.51 0.3 0.64 0.4 0.1 0.5 0.7

A distillation unit consists of a partial reboiler, a bubble cap column, and a total condenser. The overall plate efficiency is 65%. The feed is a liquid mixture, at its bubble point, consisting of 50 mole% benzene in toluene. This liquid is fed to the optimum plate. The column is to produce a distillate containing 9š mole% benzene and a bottoms of 95 mole% toluene. Calculate for an operating pressure of I atm: (a) Minimum reflux ratio (L/D)min- (b) Minimum number of actual plates to carry out the desired separation. (c) Using a reflux ratio (LID) of 50% more than the minimum, the number of actual plates needed. Equilibrium data In mole fraction benzene, 101 kPa 0.96 0.9 0.98 0.95 0.86 0.91 0.8 0.72 0.79 0.6 0.21 0.37 0.2 0.51 0.3 0.64 0.4 0.1 0.5 0.7

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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A distillation unit consists of a partial reboiler, a bubble cap column, and a total condenser. The overall plate efficiency is 65%. The feed is a liquid mixture, at its bubble point, consisting of 50 mole% benzene in toluene. This liquid is fed to the optimum plate. The column is to produce a distillate containing 95 mole% benzene and a bottoms of 95 mole% toluene. Calculate for an operating pressure of 1 atm: (a) Minimum reflux ratio (LID)min- (b) Minimum number of actual plates to carry out the desired separation. (c) Using a reflux ratio (LID) of 50% more than the minimum, the number of actual plates needed. Equilibrium data In mole fraction benzene, 101 kPa 0.91 0.72 0.5 0.96 0.9 0.98 0.95 0.79 0.86 0.21 0.1 0.37 0.2 0.64 0.4 0.51 0.3 0.6 0.7 0.8
Transcribed Image Text:A distillation unit consists of a partial reboiler, a bubble cap column, and a total condenser. The overall plate efficiency is 65%. The feed is a liquid mixture, at its bubble point, consisting of 50 mole% benzene in toluene. This liquid is fed to the optimum plate. The column is to produce a distillate containing 95 mole% benzene and a bottoms of 95 mole% toluene. Calculate for an operating pressure of 1 atm: (a) Minimum reflux ratio (LID)min- (b) Minimum number of actual plates to carry out the desired separation. (c) Using a reflux ratio (LID) of 50% more than the minimum, the number of actual plates needed. Equilibrium data In mole fraction benzene, 101 kPa 0.91 0.72 0.5 0.96 0.9 0.98 0.95 0.79 0.86 0.21 0.1 0.37 0.2 0.64 0.4 0.51 0.3 0.6 0.7 0.8
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