JUSTIFICATION OF THE INTERNAL ISOTHERMAL MODEL FOR GAS-SOLID CATALYTIC REACTIONS

被引:16
作者
PEREIRA, CJ [1 ]
WANG, JB [1 ]
VARMA, A [1 ]
机构
[1] UNIV NOTRE DAME,DEPT CHEM ENGN,NOTRE DAME,IN 46556
关键词
D O I
10.1002/aic.690250615
中图分类号
TQ [化学工业];
学科分类号
0817 ;
摘要
The commonly employed internal isothermal model for gas‐solid catalytic reactions, wherein the pellet is assumed internally isothermal but with internal concentration gradient, is justified by analyzing the full non‐isothermal diffusion‐reaction equations as an appropriate perturbation problem (β small, and Bih/β finite). The internal isothermal model is shown to be the zeroth order solution of the perturbation problem. Analytic expressions for the first order corrections are given for a first order reaction. Copyright © 1979 American Institute of Chemical Engineers
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页码:1036 / 1043
页数:8
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