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Example 40 Figure E12.6 illustrates a steady-state process for the production of methanol. All of the compositions are in mole fractions or percent. The stream flows are in moles. Over Syslem Boundary Feed F32.5 CO 02 0 Recycle R y 00 CH Separator OH,OH 100% CO+ 2H₂ →CH,OH Figure E12.6 Note in Figure E12.6 that some CH, enters the process, but does not participate in the reaction. A purge stream is used to maintain the CH, concentration in the exit from the separator at no more than 3.2 mol %, and prevent hydrogen buildup as well. The once-through conversion of the CO in the reactor is 18%. Compute the moles of recycle, CH OH, and purge per mole of feed, and also compute the purge gas composition.

Example 40 Figure E12.6 illustrates a steady-state process for the production of methanol. All of the compositions are in mole fractions or percent. The stream flows are in moles. Over Syslem Boundary Feed F32.5 CO 02 0 Recycle R y 00 CH Separator OH,OH 100% CO+ 2H₂ →CH,OH Figure E12.6 Note in Figure E12.6 that some CH, enters the process, but does not participate in the reaction. A purge stream is used to maintain the CH, concentration in the exit from the separator at no more than 3.2 mol %, and prevent hydrogen buildup as well. The once-through conversion of the CO in the reactor is 18%. Compute the moles of recycle, CH OH, and purge per mole of feed, and also compute the purge gas composition.

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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Example 40 Figure E12.6 illustrates a steady-state process for the production of methanol. All of the compositions are in mole fractions or percent. The stream flows are in moles. Over Syslem Boundary Feed 32.5 CO 02 0 Reactor Recycle R y 00 CH,00 100% CO+2H₂ →CH,OH Figure E12.6 Note in Figure E12.6 that some CH, enters the process, but does not participate in the reaction. A purge stream is used to maintain the CH, concentration in the exit from the separator at no more than 3.2 mol %, and prevent hydrogen buildup as well. The once-through conversion of the CO in the reactor is 18%. Compute the moles of recycle, CH,OH, and purge per mole of feed, and also compute the purge gas composition.
Transcribed Image Text:Example 40 Figure E12.6 illustrates a steady-state process for the production of methanol. All of the compositions are in mole fractions or percent. The stream flows are in moles. Over Syslem Boundary Feed 32.5 CO 02 0 Reactor Recycle R y 00 CH,00 100% CO+2H₂ →CH,OH Figure E12.6 Note in Figure E12.6 that some CH, enters the process, but does not participate in the reaction. A purge stream is used to maintain the CH, concentration in the exit from the separator at no more than 3.2 mol %, and prevent hydrogen buildup as well. The once-through conversion of the CO in the reactor is 18%. Compute the moles of recycle, CH,OH, and purge per mole of feed, and also compute the purge gas composition.
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