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(i) The amount of CO₂ being removed from the gas stream. (ii) The composition of gas leaving the absorption column. (iii) The minimum flowrate of triethanolamine required. (iv) The concentration of CO₂ in the exit liquid if the actual liquid flowrate is 1.5 times the minimum liquid flow required. (v) The number of theoretical stages required. Equilibrium data of CO₂-triethanolamine mixture: x = mol fraction of CO₂ in liquid; y = mol fraction of CO₂ in gas

(i) The amount of CO₂ being removed from the gas stream. (ii) The composition of gas leaving the absorption column. (iii) The minimum flowrate of triethanolamine required. (iv) The concentration of CO₂ in the exit liquid if the actual liquid flowrate is 1.5 times the minimum liquid flow required. (v) The number of theoretical stages required. Equilibrium data of CO₂-triethanolamine mixture: x = mol fraction of CO₂ in liquid; y = mol fraction of CO₂ in gas

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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(b) An air-CO₂ mixture at a flowrate of 0.2 kmol s¹ containing 10 mol % of CO₂ is treated in an absorber column operating at 25 °C. Triethanolamine solution containing 0.4 mol% of CO₂ is used as an absorbent for this process. The absorption process recovers 78% of CO₂ from the feed gas. Determine: (i) The amount of CO₂ being removed from the gas stream. (ii) The composition of gas leaving the absorption column. X y (iii) The minimum flowrate of triethanolamine required. (iv) The concentration of CO₂ in the exit liquid if the actual liquid flowrate is 1.5 times the minimum liquid flow required. (v) The number of theoretical stages required. Equilibrium data of CO₂-triethanolamine mixture: x= mol fraction of CO₂ in liquid; y = mol fraction of CO₂ in gas 0.01 0.02 0.03 0.04 0.05 0.06 0.07 0.08 0.09 0.10 0.11 0.0 0.004 0.015 0.027 0.038 0.05 0.061 0.073 0.084 0.096 0.107
Transcribed Image Text:(b) An air-CO₂ mixture at a flowrate of 0.2 kmol s¹ containing 10 mol % of CO₂ is treated in an absorber column operating at 25 °C. Triethanolamine solution containing 0.4 mol% of CO₂ is used as an absorbent for this process. The absorption process recovers 78% of CO₂ from the feed gas. Determine: (i) The amount of CO₂ being removed from the gas stream. (ii) The composition of gas leaving the absorption column. X y (iii) The minimum flowrate of triethanolamine required. (iv) The concentration of CO₂ in the exit liquid if the actual liquid flowrate is 1.5 times the minimum liquid flow required. (v) The number of theoretical stages required. Equilibrium data of CO₂-triethanolamine mixture: x= mol fraction of CO₂ in liquid; y = mol fraction of CO₂ in gas 0.01 0.02 0.03 0.04 0.05 0.06 0.07 0.08 0.09 0.10 0.11 0.0 0.004 0.015 0.027 0.038 0.05 0.061 0.073 0.084 0.096 0.107
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