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4.57. WP In the Deacon process for the manufacture of chlorine, HCl and O, react to form Cl, and H,O. Sufficient air (21 mole% O2, 79% N2) is fed to provide 35% excess oxygen, and the fractional conversion of HCl is 85%. a. Calculate the mole fractions of the product stream components, using atomic species balances in your calculation. b. Again calculate the mole fractions of the product stream components, only this time use the extent of reaction in the calculation. c. An alternative to using air as the oxygen source would be to feed pure oxygen to the reactor. Running with oxygen imposes a significant extra process cost relative to running with air, but also offers the potential for considerable savings. Speculate on what the cost and savings might be. What would determine which way the process should be run? MATERIALS

4.57. WP In the Deacon process for the manufacture of chlorine, HCl and O, react to form Cl, and H,O. Sufficient air (21 mole% O2, 79% N2) is fed to provide 35% excess oxygen, and the fractional conversion of HCl is 85%. a. Calculate the mole fractions of the product stream components, using atomic species balances in your calculation. b. Again calculate the mole fractions of the product stream components, only this time use the extent of reaction in the calculation. c. An alternative to using air as the oxygen source would be to feed pure oxygen to the reactor. Running with oxygen imposes a significant extra process cost relative to running with air, but also offers the potential for considerable savings. Speculate on what the cost and savings might be. What would determine which way the process should be run? MATERIALS

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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4.57. WP In the Deacon process for the manufacture of chlorine, HCl and O, react to form Cl, and H,O. Sufficient air (21 mole% O2, 79% N2) is fed to provide 35% excess oxygen, and the fractional conversion of HCl is 85%. a. Calculate the mole fractions of the product stream components, using atomic species balances in your calculation. b. Again calculate the mole fractions of the product stream components, only this time use the extent of reaction in the calculation. c. An alternative to using air as the oxygen source would be to feed pure oxygen to the reactor. Running with oxygen imposes a significant extra process cost relative to running with air, but also offers the potential for considerable savings. Speculate on what the cost and savings might be. What would determine which way the process should be run? MATERIALS
Transcribed Image Text:4.57. WP In the Deacon process for the manufacture of chlorine, HCl and O, react to form Cl, and H,O. Sufficient air (21 mole% O2, 79% N2) is fed to provide 35% excess oxygen, and the fractional conversion of HCl is 85%. a. Calculate the mole fractions of the product stream components, using atomic species balances in your calculation. b. Again calculate the mole fractions of the product stream components, only this time use the extent of reaction in the calculation. c. An alternative to using air as the oxygen source would be to feed pure oxygen to the reactor. Running with oxygen imposes a significant extra process cost relative to running with air, but also offers the potential for considerable savings. Speculate on what the cost and savings might be. What would determine which way the process should be run? MATERIALS
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