EXAMPLE 12.2 Recycle in a Process in Which a Reaction Occurs Cyclohexane (C,H12) can be made by the reaction of benzene (Bz) (C,H6) with hydrogen according to the following reaction: C,H6 + 3H2 = C6H12 For the process shown in Figure E12.2, determine the ratio of the recycle stream to the fresh feed stream if the overall conversion of benzene is 95%, and the single- pass conversion is 20%. Assume that 20% excess hydrogen is used in the fresh feed, and that the composition of the recycle stream is 22.74 mol % benzene and 78.26 mol % hydrogen. Reactor feed Product P Міxer Fresh Feed n, F 20% excess H2 n. n Reactor Separator Recycle 22.74% Bz 77.26% H2
EXAMPLE 12.2 Recycle in a Process in Which a Reaction Occurs Cyclohexane (C,H12) can be made by the reaction of benzene (Bz) (C,H6) with hydrogen according to the following reaction: C,H6 + 3H2 = C6H12 For the process shown in Figure E12.2, determine the ratio of the recycle stream to the fresh feed stream if the overall conversion of benzene is 95%, and the single- pass conversion is 20%. Assume that 20% excess hydrogen is used in the fresh feed, and that the composition of the recycle stream is 22.74 mol % benzene and 78.26 mol % hydrogen. Reactor feed Product P Міxer Fresh Feed n, F 20% excess H2 n. n Reactor Separator Recycle 22.74% Bz 77.26% H2
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:EXAMPLE 12.2 Recycle in a Process in Which a Reaction Occurs
Cyclohexane (C,H12) can be made by the reaction of benzene (Bz) (C,H6) with hydrogen
according to the following reaction:
C,H6 + 3H2 = C,H12
For the process shown in Figure E12.2, determine the ratio of the recycle stream to the fresh
feed stream if the overall conversion of benzene is 95%, and the single- pass conversion is
20%. Assume that 20% excess hydrogen is used in the fresh feed, and that the composition of
the recycle stream is 22.74 mol % benzene and 78.26 mol % hydrogen.
Reactor feed
Product P
Mixer
Fresh Feed ng,
F
20% excess H2
Reactor
Soparator
R
Recycle
22.74% Bz
77.26% H2
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