A feed to a distillation column consisting equimolar benze and toluene is separated into two product streams by fractional distillation. The fresh feed stream flow is 90mol/hr. The vapor leaving the top of the column contains 90% benzene, is completely condensed into two equal fractions wherein one is removed as overhead product stream and the other (reflux) is recycled to the top of the column. The overhead produt stream contains 85% of the benzene fed to the column. The liquid leaving the bottom of the column is fed to a partial reboiler in which 45% of it is vaporized. The vapor generated in the reboiler (the boilup) is recycled to become the rising vapor stream in the column, and the residual reboiler liquid is taken off as the bottom product stream. The relation that governs the composition of the sreams leaving the reboiler is YB=2.25xB Draw and label the flowchart of the process. Calcu;ate molar amounts of the overhead and bottom products Find the mole fraction of benzene in the bottom products Find the molar flow rate of boil up and its corresponding yB
A feed to a distillation column consisting equimolar benze and toluene is separated into two product streams by fractional distillation. The fresh feed stream flow is 90mol/hr. The vapor leaving the top of the column contains 90% benzene, is completely condensed into two equal fractions wherein one is removed as overhead product stream and the other (reflux) is recycled to the top of the column. The overhead produt stream contains 85% of the benzene fed to the column. The liquid leaving the bottom of the column is fed to a partial reboiler in which 45% of it is vaporized. The vapor generated in the reboiler (the boilup) is recycled to become the rising vapor stream in the column, and the residual reboiler liquid is taken off as the bottom product stream. The relation that governs the composition of the sreams leaving the reboiler is YB=2.25xB Draw and label the flowchart of the process. Calcu;ate molar amounts of the overhead and bottom products Find the mole fraction of benzene in the bottom products Find the molar flow rate of boil up and its corresponding yB
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 feed to a distillation column consisting equimolar benze and toluene is separated into two product streams by fractional distillation. The fresh feed stream flow is 90mol/hr. The vapor leaving the top of the column contains 90% benzene, is completely condensed into two equal fractions wherein one is removed as overhead product stream and the other (reflux) is recycled to the top of the column. The overhead produt stream contains 85% of the benzene fed to the column.
The liquid leaving the bottom of the column is fed to a partial reboiler in which 45% of it is vaporized. The vapor generated in the reboiler (the boilup) is recycled to become the rising vapor stream in the column, and the residual reboiler liquid is taken off as the bottom product stream. The relation that governs the composition of the sreams leaving the reboiler is
YB=2.25xB
- Draw and label the flowchart of the process.
- Calcu;ate molar amounts of the overhead and bottom products
- Find the mole fraction of benzene in the bottom products
- Find the molar flow rate of boil up and its corresponding yB
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