The cumene process is used to convert benzene and propene in the presence of oxygen to phenol and acetone via the following reaction. Н, + С,Н, + о, С,Н, ОН + С, Н,О 9. 9. E. 9. E. 9. This reaction is carried out with excess benzene and excess oxygen to ensure that no side reactions occur. A 1.21 ratio of benzene to propene is fed to a reactor in the presence of 26.5% excess air (N2 and O2). The first pass conversion of propene is 100%. The products leave the reactor and enter a condenser where the gaseous nitrogen and oxygen leave the process and the liquid organic products are fed to a distillation column. The distillation column separates the products from the reactants. Any unreacted reactants are fed into the fresh feed stream. The products are directed to a second distillation column that separates the acetone from the phenol. If 13.4 kg/hr of phenol is produced from this process, answer the following questions. First, label the process flow diagram below, putting either a given numeric value or the words "unknown" or "none" in each space. Do not leave any spaces blank. Variable names are shown for reference later. n6= mol/hr X11= mol C6He/mol X12= mol C3H6/mol Fresh Feed Reactor Feed N5= unknown mol/hr n2= n3= mol/hr mol/hr mol/hr Distillation Reactor Condenser Column 1 X1= X5= mol C6H6/mol mol C6H6/mol N4= X2= X6= mol gas/hr mol C3H6/mol mol C3H6/mol Xg= Хз— X7= mol O2/moly mol O2/mol mol O2/mol X10= mol N2/mol X4= X8= mol N2/mol mol N2/mol ng= n7= mol C3H60/hr unknown 0.79 0.21 26.5 1.21 13.4 mol/hr none X13= mol C3HGO/mol Distillation Column 2 X14= mol C6H5OH/mol
The cumene process is used to convert benzene and propene in the presence of oxygen to phenol and acetone via the following reaction. Н, + С,Н, + о, С,Н, ОН + С, Н,О 9. 9. E. 9. E. 9. This reaction is carried out with excess benzene and excess oxygen to ensure that no side reactions occur. A 1.21 ratio of benzene to propene is fed to a reactor in the presence of 26.5% excess air (N2 and O2). The first pass conversion of propene is 100%. The products leave the reactor and enter a condenser where the gaseous nitrogen and oxygen leave the process and the liquid organic products are fed to a distillation column. The distillation column separates the products from the reactants. Any unreacted reactants are fed into the fresh feed stream. The products are directed to a second distillation column that separates the acetone from the phenol. If 13.4 kg/hr of phenol is produced from this process, answer the following questions. First, label the process flow diagram below, putting either a given numeric value or the words "unknown" or "none" in each space. Do not leave any spaces blank. Variable names are shown for reference later. n6= mol/hr X11= mol C6He/mol X12= mol C3H6/mol Fresh Feed Reactor Feed N5= unknown mol/hr n2= n3= mol/hr mol/hr mol/hr Distillation Reactor Condenser Column 1 X1= X5= mol C6H6/mol mol C6H6/mol N4= X2= X6= mol gas/hr mol C3H6/mol mol C3H6/mol Xg= Хз— X7= mol O2/moly mol O2/mol mol O2/mol X10= mol N2/mol X4= X8= mol N2/mol mol N2/mol ng= n7= mol C3H60/hr unknown 0.79 0.21 26.5 1.21 13.4 mol/hr none X13= mol C3HGO/mol Distillation Column 2 X14= mol C6H5OH/mol
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
Related questions
Question
Out of bottom Distillation column 2 is n9(mol C6H5OH/hr) and m9(kg C6H5OH/hr)
Questions:
What is n1, the molar flow rate of fresh feed into the process?
What are the mole fractions of C6H6 (x1), C3H6 (x2), O2 (x3) and N2 (x4) in the fresh feed stream?
What is n6, the molar flow rate of the recycle stream?
Transcribed Image Text:The cumene process is used to convert benzene and propene in the presence of oxygen to phenol and
acetone via the following reaction.
Н, + С,Н, + о,
С,Н, ОН + С, Н,О
9.
9.
E.
9.
E.
9.
This reaction is carried out with excess benzene and excess oxygen to ensure that no side reactions occur.
A 1.21 ratio of benzene to propene is fed to a reactor in the presence of 26.5% excess air (N2 and O2). The
first pass conversion of propene is 100%. The products leave the reactor and enter a condenser where the
gaseous nitrogen and oxygen leave the process and the liquid organic products are fed to a distillation
column. The distillation column separates the products from the reactants. Any unreacted reactants are fed
into the fresh feed stream. The products are directed to a second distillation column that separates the
acetone from the phenol. If 13.4 kg/hr of phenol is produced from this process, answer the following
questions.
First, label the process flow diagram below, putting either a given numeric value or the words "unknown" or
"none" in each space. Do not leave any spaces blank. Variable names are shown for reference later.
Transcribed Image Text:n6=
mol/hr
X11=
mol C6He/mol
X12=
mol C3H6/mol
Fresh Feed
Reactor Feed
N5= unknown
mol/hr
n2=
n3=
mol/hr
mol/hr
mol/hr
Distillation
Reactor
Condenser
Column 1
X1=
X5=
mol C6H6/mol
mol C6H6/mol
N4=
X2=
X6=
mol gas/hr
mol C3H6/mol
mol C3H6/mol
Xg=
Хз—
X7=
mol O2/moly
mol O2/mol
mol O2/mol
X10=
mol N2/mol
X4=
X8=
mol N2/mol
mol N2/mol
ng=
n7=
mol C3H60/hr
unknown
0.79
0.21
26.5
1.21
13.4
mol/hr
none
X13=
mol C3HGO/mol
Distillation
Column 2
X14=
mol C6H5OH/mol
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