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countercurrent absorption tower receives 100 kmol of a gas mixture per hour having 15% of a solute A. It is required to absorb 95% of the solute. ‘Pure’ solvent enters at a rate of 80 kmol/h at the top. (a) What is the equation of the operating line if the concentrations are expressed in the mole ratio unit? (b) If the mole fraction unit is used, what would be the slope of the operating line at a section where the bulk gas concentration is 10 mol%? What is the maximum slope of the operating line and where does it occur?

countercurrent absorption tower receives 100 kmol of a gas mixture per hour having 15% of a solute A. It is required to absorb 95% of the solute. ‘Pure’ solvent enters at a rate of 80 kmol/h at the top. (a) What is the equation of the operating line if the concentrations are expressed in the mole ratio unit? (b) If the mole fraction unit is used, what would be the slope of the operating line at a section where the bulk gas concentration is 10 mol%? What is the maximum slope of the operating line and where does it occur?

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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A countercurrent absorption tower receives 100 kmol of a gas mixture per hour having 15% of a solute A. It is required to absorb 95% of the solute. ‘Pure’ solvent enters at a rate of 80 kmol/h at the top. (a) What is the equation of the operating line if the concentrations are expressed in the mole ratio unit? (b) If the mole fraction unit is used, what would be the slope of the operating line at a section where the bulk gas concentration is 10 mol%? What is the maximum slope of the operating line and where does it occur?
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