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Qu: A binary mixture composed of 40 wt% benzene and 60 wt% toluene is fed to the distillation column at a rate of 1000 Ib/hr. the top product contains 97 wt% benzene and the bottom product contains 98 wt% toluene. The vapour out from the top of the column at 180°F then entering the condenser in which it is condensed at the same temperature and then cooled to 120°F. part of that liquid is returned to the column as reflux and the rest is with drawn as a top product. A reflux ratio of 3.5 Ib of reflux per pound of the top product is to be used. The condenser uses water which enters at 70°F and leaves at 100°F.calculate: 1. The quantity of top and bottom products produced per hour. 2. The quantity of vapour evolved per hour. 3. The quantity of water used in the condenser per hour. Btu 1. of top product =170 Ib *Given that: ,Cpm of top product Btu Btu ,Cp,.of.water =1 Ib." F =0.45 Ib. F

Qu: A binary mixture composed of 40 wt% benzene and 60 wt% toluene is fed to the distillation column at a rate of 1000 Ib/hr. the top product contains 97 wt% benzene and the bottom product contains 98 wt% toluene. The vapour out from the top of the column at 180°F then entering the condenser in which it is condensed at the same temperature and then cooled to 120°F. part of that liquid is returned to the column as reflux and the rest is with drawn as a top product. A reflux ratio of 3.5 Ib of reflux per pound of the top product is to be used. The condenser uses water which enters at 70°F and leaves at 100°F.calculate: 1. The quantity of top and bottom products produced per hour. 2. The quantity of vapour evolved per hour. 3. The quantity of water used in the condenser per hour. Btu 1. of top product =170 Ib *Given that: ,Cpm of top product Btu Btu ,Cp,.of.water =1 Ib." F =0.45 Ib. F

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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Qu: A binary mixture composed of 40 wt% benzene and 60 wt% toluene is fed to the distillation column at a rate of 1000 Ib/hr. the top product contains 97 wt% benzene and the bottom product contains 98 wt% toluene. The vapour out from the top of the column at 180°F then entering the condenser in which it is condensed at the same temperature and then cooled to 120°F. part of that liquid is returned to the column as reflux and the rest is with drawn as a top product. A reflux ratio of 3.5 Ib of reflux per pound of the top product is to be used. The condenser uses water which enters at 70°F and leaves at 100°F.calculate: 1. The quantity of top and bottom products produced per hour. 2. The quantity of vapour evolved per hour. 3. The quantity of water used in the condenser per hour. 2. of top product Btu =170- Ib *Given that: ,Cpm of top product Btu ,Cp, .of.water =1 Btu =0.45 Ib. F Ib." F
Transcribed Image Text:Qu: A binary mixture composed of 40 wt% benzene and 60 wt% toluene is fed to the distillation column at a rate of 1000 Ib/hr. the top product contains 97 wt% benzene and the bottom product contains 98 wt% toluene. The vapour out from the top of the column at 180°F then entering the condenser in which it is condensed at the same temperature and then cooled to 120°F. part of that liquid is returned to the column as reflux and the rest is with drawn as a top product. A reflux ratio of 3.5 Ib of reflux per pound of the top product is to be used. The condenser uses water which enters at 70°F and leaves at 100°F.calculate: 1. The quantity of top and bottom products produced per hour. 2. The quantity of vapour evolved per hour. 3. The quantity of water used in the condenser per hour. 2. of top product Btu =170- Ib *Given that: ,Cpm of top product Btu ,Cp, .of.water =1 Btu =0.45 Ib. F Ib." F
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