You can assume constant molar flow rates 2. A distillation column with eight equilibrium stages and a partial reboiler and total condenser will produce a distillate that is 95% mol benzene from a feed that is 50% mol benzene. The relative volatility between benzene and the heavy compound is 2.5. a. When the feed is added in the 5th stage as a saturated liquid, find the bottoms composition when the reflux ratio is 1.75 times the minimum. b. When the feed is a saturated vapor and the reflux ratio is 1.42 times the minimum, in what stage does the feed need to be added for optimal number of stages? How many stages are needed
You can assume constant molar flow rates 2. A distillation column with eight equilibrium stages and a partial reboiler and total condenser will produce a distillate that is 95% mol benzene from a feed that is 50% mol benzene. The relative volatility between benzene and the heavy compound is 2.5. a. When the feed is added in the 5th stage as a saturated liquid, find the bottoms composition when the reflux ratio is 1.75 times the minimum. b. When the feed is a saturated vapor and the reflux ratio is 1.42 times the minimum, in what stage does the feed need to be added for optimal number of stages? How many stages are needed
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:You can assume constant molar flow rates
2. A distillation column with eight equilibrium stages and a partial reboiler and total condenser
will produce a distillate that is 95% mol benzene from a feed that is 50% mol benzene. The
relative volatility between benzene and the heavy compound is 2.5.
a. When the feed is added in the 5th stage as a saturated liquid, find the bottoms composition
when the reflux ratio is 1.75 times the minimum.
b. When the feed is a saturated vapor and the reflux ratio is 1.42 times the minimum, in what
stage does the feed need to be added for optimal number of stages? How many stages are needed
for a bottoms composition of 5% benzene?
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