The elementary gas-phase reaction 2A+ C is carried out in a packed-bed reactor. Pure A enters the reactor at a 450-K flow rate of 10 mol/s, and a concentration of 0.25 mol/dm. The PBR contains 90 kg of catalyst and is surrounded by a heat exchanger for which cooling fluid is available at 500 K. Compare the conversion achieved for the four types of heat exchanger operation: adiabatic, constant Ta, co-current flow, and countercurrent flow. Additional information: a = 0.019/kg-cat Ua/p, = 0.8 J/kg-cat-s K - 20000 J/mol C = 20 J/mol/K FA0 = 10 mol/h AH C, = 40 J/mol-K CA0 = 1 mol/dm v, = 10 dm'/h
The elementary gas-phase reaction 2A+ C is carried out in a packed-bed reactor. Pure A enters the reactor at a 450-K flow rate of 10 mol/s, and a concentration of 0.25 mol/dm. The PBR contains 90 kg of catalyst and is surrounded by a heat exchanger for which cooling fluid is available at 500 K. Compare the conversion achieved for the four types of heat exchanger operation: adiabatic, constant Ta, co-current flow, and countercurrent flow. Additional information: a = 0.019/kg-cat Ua/p, = 0.8 J/kg-cat-s K - 20000 J/mol C = 20 J/mol/K FA0 = 10 mol/h AH C, = 40 J/mol-K CA0 = 1 mol/dm v, = 10 dm'/h
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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Transcribed Image Text:The elementary gas-phase reaction
2A+ C
is carried out in a packed-bed reactor. Pure A enters the reactor at a 450-K flow rate of 10 mol/s,
and a concentration of 0.25 mol/dm. The PBR contains 90 kg of catalyst and is surrounded by a
heat exchanger for which cooling fluid is available at 500 K. Compare the conversion achieved for
the four types of heat exchanger operation: adiabatic, constant Ta, co-current flow, and
countercurrent flow.
Additional information:
C = 20 J/mol/K
a = 0.019/kg-cat
Uafp, = 0.8 J/kg-cat -s-K
AH =- 20000 J/mol
FA0 = 10 mol/h
CAo = 1 mol/dm
V, = 10 dm'/h
%3D
C = 40 J/mol-K
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