Ethanol can be produced by the direct hydration of ethylene with H¿PO4 at 300°C and 6.8 MPa according to the reaction: CH2=CH2 + H2O → C>H;OH The following side reaction also occurs during the process: CH2 CH2 + H20 → C2H‚O + H2 The yield of ethanol is 92% and the single-pass conversion is 13%. The molar ratio of ethylene to water in the feed to the reactor is 1:0.6. Unreacted ethylene is separated from the reactor effluent and recirculated. a) How much ethylene and water are required to produce 100 kmol of ethanol? b) How much ethylene is recycled for the production rate?
Ethanol can be produced by the direct hydration of ethylene with H¿PO4 at 300°C and 6.8 MPa according to the reaction: CH2=CH2 + H2O → C>H;OH The following side reaction also occurs during the process: CH2 CH2 + H20 → C2H‚O + H2 The yield of ethanol is 92% and the single-pass conversion is 13%. The molar ratio of ethylene to water in the feed to the reactor is 1:0.6. Unreacted ethylene is separated from the reactor effluent and recirculated. a) How much ethylene and water are required to produce 100 kmol of ethanol? b) How much ethylene is recycled for the production rate?
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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Transcribed Image Text:Ethanol can be produced by the direct hydration of ethylene with H¿PO4 at 300°C and 6.8 MPa
according to the reaction:
CH2=CH2 + H2O → C>H;OH
The following side reaction also occurs during the process:
CH2 CH2 + H20 → C2H‚O + H2
The yield of ethanol is 92% and the single-pass conversion is 13%. The molar ratio of ethylene to
water in the feed to the reactor is 1:0.6. Unreacted ethylene is separated from the reactor effluent
and recirculated.
a) How much ethylene and water are required to produce 100 kmol of ethanol?
b) How much ethylene is recycled for the production rate?
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