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It is required to separate a mixture containing 60% methanol and 40% water by distillation. The overhead product is to contain 96% methanol and the bottom product 97% water. All compositions are in terms of moles. The reflux ratio at the top of the column is 1.4 and the reflux is at its bubble point. If the feed enters as saturated vapour, calculate: i. The molar ratio of the overhead product to feed ii. The number of plates required for the separation Equilibrium data for methanol/water system is given below and plotted on a graph. Table 1:Equilibrium data for methanol/water system Mole fraction methanol in Mole fraction methanol in |VAPOUR 0.000 LIQUID 0.000 0.134 0.020 0.230 0.040 0.304 0.060 0.365 0.080 0.418 0.100 0.517 0.150 0.579 0.200 0.665 0.300 0.729 0.400 0.779 0.500 0.825 0.600 0.870 0.700 0.915 0.800 0.958 0.900 0.979 0.950 1.000 1.000

It is required to separate a mixture containing 60% methanol and 40% water by distillation. The overhead product is to contain 96% methanol and the bottom product 97% water. All compositions are in terms of moles. The reflux ratio at the top of the column is 1.4 and the reflux is at its bubble point. If the feed enters as saturated vapour, calculate: i. The molar ratio of the overhead product to feed ii. The number of plates required for the separation Equilibrium data for methanol/water system is given below and plotted on a graph. Table 1:Equilibrium data for methanol/water system Mole fraction methanol in Mole fraction methanol in |VAPOUR 0.000 LIQUID 0.000 0.134 0.020 0.230 0.040 0.304 0.060 0.365 0.080 0.418 0.100 0.517 0.150 0.579 0.200 0.665 0.300 0.729 0.400 0.779 0.500 0.825 0.600 0.870 0.700 0.915 0.800 0.958 0.900 0.979 0.950 1.000 1.000

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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It is required to separate a mixture containing 60% methanol and 40% water by distillation. The overhead product is to contain 96% methanol and the bottom product 97% water. All compositions are in terms of moles. The reflux ratio at the top of the column is 1.4 and the reflux is at its bubble point. If the feed enters as saturated vapour, calculate: i. The molar ratio of the overhead product to feed ii. The number of plates required for the separation Equilibrium data for methanol/water system is given below and plotted on a graph. Table 1:Equilibrium data for methanol/water system Mole fraction methanol in Mole fraction methanol in |VAPOUR 0.000 LIQUID 0.000 0.134 0.020 0.230 0.040 0.304 0.060 0.365 0.080 0.418 0.100 0.517 0.150 0.579 0.200 0.665 0.300 0.729 0.400 0.779 0.500 0.825 0.600 0.870 0.700 0.915 0.800 0.958 0.900 0.979 0.950 1.000 1.000
Transcribed Image Text:It is required to separate a mixture containing 60% methanol and 40% water by distillation. The overhead product is to contain 96% methanol and the bottom product 97% water. All compositions are in terms of moles. The reflux ratio at the top of the column is 1.4 and the reflux is at its bubble point. If the feed enters as saturated vapour, calculate: i. The molar ratio of the overhead product to feed ii. The number of plates required for the separation Equilibrium data for methanol/water system is given below and plotted on a graph. Table 1:Equilibrium data for methanol/water system Mole fraction methanol in Mole fraction methanol in |VAPOUR 0.000 LIQUID 0.000 0.134 0.020 0.230 0.040 0.304 0.060 0.365 0.080 0.418 0.100 0.517 0.150 0.579 0.200 0.665 0.300 0.729 0.400 0.779 0.500 0.825 0.600 0.870 0.700 0.915 0.800 0.958 0.900 0.979 0.950 1.000 1.000
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