Paper Title:

Effect of Catalyst Diffusion Coefficient on Ethylbenzene Dehydrogenation

Periodical Defect and Diffusion Forum (Volumes 312 - 315)
Main Theme Diffusion in Solids and Liquids VI
Edited by Andreas Öchsner, Graeme E. Murch and João M.P.Q. Delgado
Pages 1-6
DOI 10.4028/www.scientific.net/DDF.312-315.1
Citation Mohammad Ebrahim Zeynali et al., 2011, Defect and Diffusion Forum, 312-315, 1
Online since April, 2011
Authors Mohammad Ebrahim Zeynali, Feridoon Mohammadi
Keywords Catalyst Pore Size, Diffusion Coefficient, Ethylbenzene, Styrene
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Abstract

The effective diffusion coefficients for a single catalyst pellet were determined by numerical integration of the Johnson-Stewart equation for bimodal and unimodal pore size distributions assuming a transitional diffusion regime. The effectiveness factors of a spherical catalyst pellet were determined at various pore size distribution probability density functions. Using effectiveness factors the production rates were determined. The results showed that the effectiveness factor and production rate are sensitive to catalyst pore size distribution and diffusion coefficient.