Answered: Solvent вз Solvent F3=B2 : F2 D3 81 F1…

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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Question

Forty mol/s of a bubble-point mixture of 75 mol% acetone and 25 mol% methanol at 1 atm is separated by extractive distillation, using ethanol as the solvent, to produce an acetone product of not less than 95 mol% acetone, a methanol product of not less than 98 mol% methanol, and a water stream for recycle of at least 99.9 mol% purity. Prepare a preliminary process design using the traditional three-column sequence consisting of ordinary distillation followed by extractive distillation, and then ordinary distillation to recover
the solvent, as shown for another system in Figure.

Solvent
вз
Solvent
F3=B2 :
F2
D3 81 F1 D1
D2
Water
Binary
azeotrope
Ethanol
Water
Ethanol
Pure
Pure
ethanol
water
D1
D2
D3
Ethanol
+ water
F1
F2
F3
B1
|вз
Solvent recycle
Pure
water

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