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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: McGraw-Hill Education
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Question
Cyclohexane (C6H12) can be made by the reaction of benzene (C6H6) with hydrogen according to the
following reaction:
C6H6 + H2 → C6H12
For the process shown in the figure, determine the a) composition of the product and b) the ratio of
the recycle stream to the fresh feed. 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 mole % hydrogen.

Transcribed Image Text:4. Cyclohexane (C6H12) can be made by the reaction of benzene (CsHs) with hydrogen according to the
following reaction: C,H, + H2 →C,H12
For the process shown in the figure, determine the a) composition of the product and b) the ratio of
the recycle stream to the fresh feed. 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 mole % hydrogen.
Recycle, R
C6H6
H2
REACTOR
SEPARATOR
Product
Feed, F
C6H6 = 100moles
CHs - n.
H2 -n2
CH12- n3
H2 - n4
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