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11.19 A distillation column separates 10000 kg/h of a 55% benzene and 45% toluene mixture. The product recovered from the condenser at the top of the column contains 97% benzene and the bottoms from the column contains 98% toluene. The vapour stream entering the condenser from the top of the column is 9000 kg/h. A portion of the product is returned to the column as reflux, and the rest is withdrawn for use elsewhere. Assume that the composition of the streams at the top of the column, the product withdrawn and the liquid reflux are identical. All compositions are on weight basis. Find the ratio of the amount refluxed to the product withdrawn.

11.19 A distillation column separates 10000 kg/h of a 55% benzene and 45% toluene mixture. The product recovered from the condenser at the top of the column contains 97% benzene and the bottoms from the column contains 98% toluene. The vapour stream entering the condenser from the top of the column is 9000 kg/h. A portion of the product is returned to the column as reflux, and the rest is withdrawn for use elsewhere. Assume that the composition of the streams at the top of the column, the product withdrawn and the liquid reflux are identical. All compositions are on weight basis. Find the ratio of the amount refluxed to the product withdrawn.

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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11.19 A distillation column separates 10000 kg/h of a 55% benzene and 45% toluene mixture. The product recovered from the condenser at the top of the column contains 97% benzene and the bottoms from the column contains 98% toluene. The vapour stream entering the condenser from the top of the column is 9000 kg/h. A portion of the product is returned to the column as reflux, and the rest is withdrawn for use elsewhere. Assume that the composition of the streams at the top of the column, the product withdrawn and the liquid reflux are identical. All compositions are on weight basis. Find the ratio of the amount refluxed to the product withdrawn.
Transcribed Image Text:11.19 A distillation column separates 10000 kg/h of a 55% benzene and 45% toluene mixture. The product recovered from the condenser at the top of the column contains 97% benzene and the bottoms from the column contains 98% toluene. The vapour stream entering the condenser from the top of the column is 9000 kg/h. A portion of the product is returned to the column as reflux, and the rest is withdrawn for use elsewhere. Assume that the composition of the streams at the top of the column, the product withdrawn and the liquid reflux are identical. All compositions are on weight basis. Find the ratio of the amount refluxed to the product withdrawn.
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