Homework Help is Here – Start Your Trial Now!
Engineering
Chemical Engineering
The irreversible first order gas phase reaction A B Is carried out in an isothermal packed bed reactor. The pressure gradient along the length of the packed bed is approximated as constant at dP dw =-0.2 atm/kg With the present reaction system, 86.5% conversion is realized. The entering pressure is 20 atm. The catalyst mass is 60 kg. It is proposed to replace the existing plug flow reactor with one of the following systems: a) A fluidized bed reactor (modeled as a CSTR) with the same catalyst weight and in which there will be virtually no pressure drop. b) Re-packing the existing reactor with a new type of catalyst. With this new catalyst the bed has the pressure drop relationship of P = (1-aw) P where the parameter a for this catalyst is 0.01 kg*1. If the fluidized bed reactor and the re-packed plug flow reactor are to be operated under the same conditions of temperature and pressure as the existing reactor, which option will result in a higher conversion?

The irreversible first order gas phase reaction A B Is carried out in an isothermal packed bed reactor. The pressure gradient along the length of the packed bed is approximated as constant at dP dw =-0.2 atm/kg With the present reaction system, 86.5% conversion is realized. The entering pressure is 20 atm. The catalyst mass is 60 kg. It is proposed to replace the existing plug flow reactor with one of the following systems: a) A fluidized bed reactor (modeled as a CSTR) with the same catalyst weight and in which there will be virtually no pressure drop. b) Re-packing the existing reactor with a new type of catalyst. With this new catalyst the bed has the pressure drop relationship of P = (1-aw) P where the parameter a for this catalyst is 0.01 kg*1. If the fluidized bed reactor and the re-packed plug flow reactor are to be operated under the same conditions of temperature and pressure as the existing reactor, which option will result in a higher conversion?

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
See similar textbooks
icon
Related questions
Question
Problem 2 The irreversible first order gas phase reaction A → B Is carried out in an isothermal packed bed reactor. The pressure gradient along the length of the packed bed is approximated as constant at dP = -0.2 atm/kg dW With the present reaction system, 86.5% conversion is realized. The entering pressure is 20 atm. The catalyst mass is 60 kg. It is proposed to replace the existing plug flow reactor with one of the following systems: a) A fluidized bed reactor (modeled as a CSTR) with the same catalyst weight and in which there will be virtually no pressure drop. b) Re-packing the existing reactor with a new type of catalyst. With this new catalyst the bed has the pressure drop relationship of P = (1-aw) / P where the parameter for this catalyst is 0.01 kg-¹. If the fluidized bed reactor and the re-packed plug flow reactor are to be operated under the same conditions of temperature and pressure as the existing reactor, which option will result in a higher conversion?
Transcribed Image Text:Problem 2 The irreversible first order gas phase reaction A → B Is carried out in an isothermal packed bed reactor. The pressure gradient along the length of the packed bed is approximated as constant at dP = -0.2 atm/kg dW With the present reaction system, 86.5% conversion is realized. The entering pressure is 20 atm. The catalyst mass is 60 kg. It is proposed to replace the existing plug flow reactor with one of the following systems: a) A fluidized bed reactor (modeled as a CSTR) with the same catalyst weight and in which there will be virtually no pressure drop. b) Re-packing the existing reactor with a new type of catalyst. With this new catalyst the bed has the pressure drop relationship of P = (1-aw) / P where the parameter for this catalyst is 0.01 kg-¹. If the fluidized bed reactor and the re-packed plug flow reactor are to be operated under the same conditions of temperature and pressure as the existing reactor, which option will result in a higher conversion?
Expert Solution
steps

Step by step

Solved in 5 steps with 4 images

SEE SOLUTIONCheck out a sample Q&A here
Blurred answer
Recommended textbooks for you
Introduction to Chemical Engineering Thermodynami…
Introduction to Chemical Engineering Thermodynami…
Chemical Engineering
ISBN:
9781259696527
Author:
J.M. Smith Termodinamica en ingenieria quimica, Hendrick C Van Ness, Michael Abbott, Mark Swihart
Publisher:
McGraw-Hill Education
Elementary Principles of Chemical Processes, Bind…
Elementary Principles of Chemical Processes, Bind…
Chemical Engineering
ISBN:
9781118431221
Author:
Richard M. Felder, Ronald W. Rousseau, Lisa G. Bullard
Publisher:
WILEY
Elements of Chemical Reaction Engineering (5th Ed…
Elements of Chemical Reaction Engineering (5th Ed…
Chemical Engineering
ISBN:
9780133887518
Author:
H. Scott Fogler
Publisher:
Prentice Hall
Process Dynamics and Control, 4e
Process Dynamics and Control, 4e
Chemical Engineering
ISBN:
9781119285915
Author:
Seborg
Publisher:
WILEY
Industrial Plastics: Theory and Applications
Industrial Plastics: Theory and Applications
Chemical Engineering
ISBN:
9781285061238
Author:
Lokensgard, Erik
Publisher:
Delmar Cengage Learning
Unit Operations of Chemical Engineering
Unit Operations of Chemical Engineering
Chemical Engineering
ISBN:
9780072848236
Author:
Warren McCabe, Julian C. Smith, Peter Harriott
Publisher:
McGraw-Hill Companies, The
SEE MORE TEXTBOOKS