Hydrodealkylation is a process in which side chain alkyl groups (like methyl) are removed from aromatics by reaction with hydrogen. The following reactions take place in the reactor: €1 C6H5CH3 + H₂ C6H6 + CH4 €2 C6H4(CH3)2 + H₂ → C6H₂CH3 + CH4 €3 C6H3(CH3)3 + H₂ → C6H4(CH3)2 + CH4 In addition, an unwanted side reaction occurs, in which benzene dimerizes to form diphenyl [C6H5C6H5]. 2 C6H6 84 → C6H5C6H5 + H₂ A process stream containing 5 mol % benzene [C6H6], 20 mol% toluene [C6H5CH3], 35 mol% xylene [C6H4(CH3)2], and 40 mol% pseudocumene [C6H3(CH³)3] is fed to a hydrodealkylation plant. This process stream is mixed with hydrogen gas in 5:1 gas-aromatics ratio before being fed to the reactor. A condenser separates hydrogen and methane from the other reactor products (lumped as aromatics).
Hydrodealkylation is a process in which side chain alkyl groups (like methyl) are removed from aromatics by reaction with hydrogen. The following reactions take place in the reactor: €1 C6H5CH3 + H₂ C6H6 + CH4 €2 C6H4(CH3)2 + H₂ → C6H₂CH3 + CH4 €3 C6H3(CH3)3 + H₂ → C6H4(CH3)2 + CH4 In addition, an unwanted side reaction occurs, in which benzene dimerizes to form diphenyl [C6H5C6H5]. 2 C6H6 84 → C6H5C6H5 + H₂ A process stream containing 5 mol % benzene [C6H6], 20 mol% toluene [C6H5CH3], 35 mol% xylene [C6H4(CH3)2], and 40 mol% pseudocumene [C6H3(CH³)3] is fed to a hydrodealkylation plant. This process stream is mixed with hydrogen gas in 5:1 gas-aromatics ratio before being fed to the reactor. A condenser separates hydrogen and methane from the other reactor products (lumped as aromatics).
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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![Hydrodealkylation
is a process in which side
chain alkyl groups (like methyl) are removed from
aromatics by reaction with hydrogen. The
following reactions take place in the reactor:
E1
C6H5CH3 + H₂ → C6H6 + CH4
82
C6H4(CH3)2 + H₂ → C6H5CH3 + CH4
€3
C6H3(CH3)3 + H₂ → C6H4(CH3)2 + CH4
In addition, an unwanted side reaction occurs, in
which benzene dimerizes to form diphenyl
[C6H5C6H5].
2 C₂H₂
C6H5C6H5 + H₂
A process stream containing 5 mol% benzene
[C6H6], 20 mol% toluene [C6H5CH3], 35 mol%
xylene [C6H4(CH3)2], and 40 mol%
pseudocumene [C6H3(CH3)3] is fed to a
hydrodealkylation plant. This process stream is
mixed with hydrogen gas in 5:1 gas-aromatics
ratio before being fed to the reactor. A condenser
separates hydrogen and methane from the other
reactor products (lumped as aromatics).
Feed
? B
? T
? X
? P
84
Reactor
Hydrogen Gas
? H₂
Light Gases
? H₂
? M
Condenser
Aromatics
? B
?T
? X
?P
?D](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F06364e3f-9093-4bde-9942-178742aee683%2F3b95f9a1-e425-4e43-b660-f149ac2f3833%2F1q1twso_processed.png&w=3840&q=75)
Transcribed Image Text:Hydrodealkylation
is a process in which side
chain alkyl groups (like methyl) are removed from
aromatics by reaction with hydrogen. The
following reactions take place in the reactor:
E1
C6H5CH3 + H₂ → C6H6 + CH4
82
C6H4(CH3)2 + H₂ → C6H5CH3 + CH4
€3
C6H3(CH3)3 + H₂ → C6H4(CH3)2 + CH4
In addition, an unwanted side reaction occurs, in
which benzene dimerizes to form diphenyl
[C6H5C6H5].
2 C₂H₂
C6H5C6H5 + H₂
A process stream containing 5 mol% benzene
[C6H6], 20 mol% toluene [C6H5CH3], 35 mol%
xylene [C6H4(CH3)2], and 40 mol%
pseudocumene [C6H3(CH3)3] is fed to a
hydrodealkylation plant. This process stream is
mixed with hydrogen gas in 5:1 gas-aromatics
ratio before being fed to the reactor. A condenser
separates hydrogen and methane from the other
reactor products (lumped as aromatics).
Feed
? B
? T
? X
? P
84
Reactor
Hydrogen Gas
? H₂
Light Gases
? H₂
? M
Condenser
Aromatics
? B
?T
? X
?P
?D
Transcribed Image Text:Are all chemical reactions balanced?
Select one:
O True
O False
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