A catalyst that is spherical in shape with a radius of 15 millimeters was utilized in PBR. The fluid has C= 1.25 moles/liter reactant A, flows through the catalyst with a velocity of 0.75 Ab meter/second. Data for the fluid: D = 2.5x10-¹¹(meter)²/second ; momentum diffusivity = AB 1x106(meter) /second. Determine the following: a.) mass flux of A that is at the boundary, if the rxn is external mass transfer limiting and proceeds instantaneously b.) mass flux of A that is at the boundary, if the rate law of the rxn is -TAS" = krCas and if k, = 3.0 x 10-6 -6 m² m
A catalyst that is spherical in shape with a radius of 15 millimeters was utilized in PBR. The fluid has C= 1.25 moles/liter reactant A, flows through the catalyst with a velocity of 0.75 Ab meter/second. Data for the fluid: D = 2.5x10-¹¹(meter)²/second ; momentum diffusivity = AB 1x106(meter) /second. Determine the following: a.) mass flux of A that is at the boundary, if the rxn is external mass transfer limiting and proceeds instantaneously b.) mass flux of A that is at the boundary, if the rate law of the rxn is -TAS" = krCas and if k, = 3.0 x 10-6 -6 m² m
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:A catalyst that is spherical in shape with a radius of 15 millimeters was utilized in PBR. The
= 1.25 moles/liter reactant A, flows through the catalyst with a velocity of 0.75
= 2.5x10¯¹¹ (meter)²/second ; momentum diffusivity =
Ab
meter/second. Data for the fluid: D
AB
1x106(meter)²/second. Determine the following:
a.) mass flux of A that is at the boundary, if the rxn is external mass transfer limiting and
proceeds instantaneously
b.) mass flux of A that is at the boundary, if the rate law of the rxn is
3
-TAS" = krCAS and if k, = 3.0 x 10-6.
m²s
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