A binary mixture which can be assumed to be an ideal mixture with a = 3 is to be separated by distillation. The feed is saturated liquid and contains 25 mol % of the light component. The desired top product composition is 95 mol % light component, while the bottoms should contain 2.5 mol % light component. a. Write down the equation for the equilibrium curve in the y-x diagram. b. Determine the minimum reflux ratio. c. If the actual reflux ratio is taken as 1.4 times the minimum reflux ratio, determine the required number of stages by the McCabe-Thiele method. Plot all relevant lines/curves on the y-x diagram. d. To which stage should the feed enter the column?
A binary mixture which can be assumed to be an ideal mixture with a = 3 is to be separated by distillation. The feed is saturated liquid and contains 25 mol % of the light component. The desired top product composition is 95 mol % light component, while the bottoms should contain 2.5 mol % light component. a. Write down the equation for the equilibrium curve in the y-x diagram. b. Determine the minimum reflux ratio. c. If the actual reflux ratio is taken as 1.4 times the minimum reflux ratio, determine the required number of stages by the McCabe-Thiele method. Plot all relevant lines/curves on the y-x diagram. d. To which stage should the feed enter the column?
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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Transcribed Image Text:A binary mixture which can be assumed to be an ideal mixture with a = 3 is to be separated by
distillation. The feed is saturated liquid and contains 25 mol% of the light component. The
desired top product composition is 95 mol% light component, while the bottoms should contain
2.5 mol% light component.
a. Write down the equation for the equilibrium curve in the y-x diagram.
b. Determine the minimum reflux ratio.
c. If the actual reflux ratio is taken as 1.4 times the minimum reflux ratio, determine the
required number of stages by the McCabe-Thiele method. Plot all relevant lines/curves
on the y-x diagram.
d. To which stage should the feed enter the column?
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