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The cumene process is used to convert benzene and propene in the presence of oxygen to phenol and acetone via the reaction C6H6 + C3H6 + 02→ C6H5OH + C3H6O This reaction is carried out with excess benzene and excess oxygen to ensure that no side reactions occur. A 1.19 ratio of benzene to propene is fed to a reactor in the presence of 31.5% 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 th acetone from the phenol. If 15.8 kg/hr of phenol is produced from this process, answer each of the questions. First, label the process flow diagram, 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.

The cumene process is used to convert benzene and propene in the presence of oxygen to phenol and acetone via the reaction C6H6 + C3H6 + 02→ C6H5OH + C3H6O This reaction is carried out with excess benzene and excess oxygen to ensure that no side reactions occur. A 1.19 ratio of benzene to propene is fed to a reactor in the presence of 31.5% 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 th acetone from the phenol. If 15.8 kg/hr of phenol is produced from this process, answer each of the questions. First, label the process flow diagram, 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.

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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What is n], the molar flow rate of fresh feed into the process? n1 = mol/hr What are the mole fractions of C,H6 (x1) , C3H6 (x2), 02 (x3) , and N2 (x4) in the fresh feed stream? x1 = mol CgH/mol x2 = mol C3H6/mol X3 = mol O2/mol X4 = mol N/mol What is n6, the molar flow rate of the recycle stream? n6 = mol/hr
Transcribed Image Text:What is n], the molar flow rate of fresh feed into the process? n1 = mol/hr What are the mole fractions of C,H6 (x1) , C3H6 (x2), 02 (x3) , and N2 (x4) in the fresh feed stream? x1 = mol CgH/mol x2 = mol C3H6/mol X3 = mol O2/mol X4 = mol N/mol What is n6, the molar flow rate of the recycle stream? n6 = mol/hr
The cumene process is used to convert benzene and propene in the presence of oxygen to phenol and acetone via the reaction C6H6 + C3H6 + 02 → C6H5OH + C3H6O This reaction is carried out with excess benzene and excess oxygen to ensure that no side reactions occur. A 1.19 ratio of benzene to propene is fed to a reactor in the presence of 31.5% excess air (N, and 02). 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 15.8 kg/hr of phenol is produced from this process, answer each of the questions. First, label the process flow diagram, 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. mol/hr mol C̟H/mol X12= mol C,H,/mol Fresh feed Reactor feed . n,= mol/hr n,= mol/hr mol/hr mol/hr Distillation Reactor Condenser column 1 X,= mol C,H/mol X5= mol C,H,/mol mol gas/hr X,= mol C,H X= mol C,H/mol /mol ............ mol 0,/mol X,= mol 0,/mol X,= mol 0,/mol ......... . mol N,/mol mol C,H,O/hr mol N,/mol mol N,/mol n; mol/hr Distillation X13 mol C,H,0/mol column 2 Answer Bank .................. mol CH,OH/mol 31.5 unknown 1.19 0.79 mol C,H,OH/hr 15.8 none 0.21 m,= kg C,H,OH/hr
Transcribed Image Text:The cumene process is used to convert benzene and propene in the presence of oxygen to phenol and acetone via the reaction C6H6 + C3H6 + 02 → C6H5OH + C3H6O This reaction is carried out with excess benzene and excess oxygen to ensure that no side reactions occur. A 1.19 ratio of benzene to propene is fed to a reactor in the presence of 31.5% excess air (N, and 02). 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 15.8 kg/hr of phenol is produced from this process, answer each of the questions. First, label the process flow diagram, 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. mol/hr mol C̟H/mol X12= mol C,H,/mol Fresh feed Reactor feed . n,= mol/hr n,= mol/hr mol/hr mol/hr Distillation Reactor Condenser column 1 X,= mol C,H/mol X5= mol C,H,/mol mol gas/hr X,= mol C,H X= mol C,H/mol /mol ............ mol 0,/mol X,= mol 0,/mol X,= mol 0,/mol ......... . mol N,/mol mol C,H,O/hr mol N,/mol mol N,/mol n; mol/hr Distillation X13 mol C,H,0/mol column 2 Answer Bank .................. mol CH,OH/mol 31.5 unknown 1.19 0.79 mol C,H,OH/hr 15.8 none 0.21 m,= kg C,H,OH/hr
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