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You desire to flash 20 moles/min of a liquid mixturecontaining 20% by mole chloroform (1) and 80% bymole ethanol (2) at 332.4 K in a flash distillation unitoperating at 70 kPa. You do not know a lot about thismixture at this temperature, other than the fact it exhibitsan azeotrope (x1 = y1 = 0.84 at 101.3 kPa; Chen,1995). Since this system forms an azeotrope, you knownot to treat it as an ideal solution. Model the systemusing the 1-parameter Margules equation and estimatewhether the mixture flashes at 332.4 K and 70 kPa. If itdoes flash, calculate the resulting flowrate and compositionof the stream(s) leaving the flash distillation unit.

You desire to flash 20 moles/min of a liquid mixturecontaining 20% by mole chloroform (1) and 80% bymole ethanol (2) at 332.4 K in a flash distillation unitoperating at 70 kPa. You do not know a lot about thismixture at this temperature, other than the fact it exhibitsan azeotrope (x1 = y1 = 0.84 at 101.3 kPa; Chen,1995). Since this system forms an azeotrope, you knownot to treat it as an ideal solution. Model the systemusing the 1-parameter Margules equation and estimatewhether the mixture flashes at 332.4 K and 70 kPa. If itdoes flash, calculate the resulting flowrate and compositionof the stream(s) leaving the flash distillation unit.

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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Question
You desire to flash 20 moles/min of a liquid mixture
containing 20% by mole chloroform (1) and 80% by
mole ethanol (2) at 332.4 K in a flash distillation unit
operating at 70 kPa. You do not know a lot about this
mixture at this temperature, other than the fact it exhibits
an azeotrope (x1 = y1 = 0.84 at 101.3 kPa; Chen,
1995). Since this system forms an azeotrope, you know
not to treat it as an ideal solution. Model the system
using the 1-parameter Margules equation and estimate
whether the mixture flashes at 332.4 K and 70 kPa. If it
does flash, calculate the resulting flowrate and composition
of the stream(s) leaving the flash distillation unit.
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