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As nitrogen 1s not used in the reaction, so nitrogen needs to be purged out

As nitrogen 1s not used in the reaction, so nitrogen needs to be purged out

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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Ethylene oxide is produced from the mixture of ethylene with air constitutes the fresh feed to the process. The reaction is 2C,H, + O, > 2C,H,0 The effluent from the reactor passes to an absorber where it is contacted with a liquid solvent. Essentially all the ethylene oxide produced is absorbed into the solvent in the absorber. The gas stream leaving the absorber, which contains nitrogen and unreacted ethylene and oxygen and both is recycle back to the reactor. As itrogen is not used in the reaction, so nitrogen needs to be purged out form the system to avoid it to accumulate in the system and cause major failure. Find a) the flowrate of stream exits the reactor. b) how much unreacted ethylene, C,H, leaving the absorber. c) solve the all the necessary material balance You are advised to put all the values in the mass balance table in order to check either your calculation is correct or not.
Transcribed Image Text:Ethylene oxide is produced from the mixture of ethylene with air constitutes the fresh feed to the process. The reaction is 2C,H, + O, > 2C,H,0 The effluent from the reactor passes to an absorber where it is contacted with a liquid solvent. Essentially all the ethylene oxide produced is absorbed into the solvent in the absorber. The gas stream leaving the absorber, which contains nitrogen and unreacted ethylene and oxygen and both is recycle back to the reactor. As itrogen is not used in the reaction, so nitrogen needs to be purged out form the system to avoid it to accumulate in the system and cause major failure. Find a) the flowrate of stream exits the reactor. b) how much unreacted ethylene, C,H, leaving the absorber. c) solve the all the necessary material balance You are advised to put all the values in the mass balance table in order to check either your calculation is correct or not.
Recycle 7.9% C2H4 3.9% 02 88.3% N2 Purge 7.8% C2H4 7.8% C2H4 3.9% 02 3.9% 02 88.3% N2 88.3% N2 Feed, 1000kg 30% C2H4 15% 02 55% N2 Reactor Absorber Solvent, 100 kg 14% C2H4 7.2% C2Н4 7% 02 3.6% 02 79% N2 82% N2 7.2% C2H40 Product, C2H40 Solvent, 100kg
Transcribed Image Text:Recycle 7.9% C2H4 3.9% 02 88.3% N2 Purge 7.8% C2H4 7.8% C2H4 3.9% 02 3.9% 02 88.3% N2 88.3% N2 Feed, 1000kg 30% C2H4 15% 02 55% N2 Reactor Absorber Solvent, 100 kg 14% C2H4 7.2% C2Н4 7% 02 3.6% 02 79% N2 82% N2 7.2% C2H40 Product, C2H40 Solvent, 100kg
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