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A gas containing 1.0 mol % acetone in air needs to be treated in a counter current absorption column so that 88% of the acetone can be removed. The total inlet gas flow to the tower is 70.0 kmol/h. The process is to operate isothermally at 300 K and a total pressure of 101.3 kPa.

A gas containing 1.0 mol % acetone in air needs to be treated in a counter current absorption column so that 88% of the acetone can be removed. The total inlet gas flow to the tower is 70.0 kmol/h. The process is to operate isothermally at 300 K and a total pressure of 101.3 kPa.

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 gas containing 1.0 mol % acetone in air needs to be treated in a counter current absorption column so that 88% of the acetone can be removed. The total inlet gas flow to the tower is 70.0 kmol/h. The process is to operate isothermally at 300 K and a total pressure of 101.3 kPa. The equilibrium relation for the acetone (A) in the gas-liquid is y = 2.95x A A a. Find the minimum solvent flowrate that needs to be fed to the column: kmol/h b. If the total inlet pure water flow to be used to absorb the acetone is 250 kmol/h, calculate the mole fraction of the solute in the liquid phase leaving the column: c. Using graphical method, find the number of theoretical stages required for this separation:
Transcribed Image Text:A gas containing 1.0 mol % acetone in air needs to be treated in a counter current absorption column so that 88% of the acetone can be removed. The total inlet gas flow to the tower is 70.0 kmol/h. The process is to operate isothermally at 300 K and a total pressure of 101.3 kPa. The equilibrium relation for the acetone (A) in the gas-liquid is y = 2.95x A A a. Find the minimum solvent flowrate that needs to be fed to the column: kmol/h b. If the total inlet pure water flow to be used to absorb the acetone is 250 kmol/h, calculate the mole fraction of the solute in the liquid phase leaving the column: c. Using graphical method, find the number of theoretical stages required for this separation:
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