INTRAPARTICLE CONVECTION, DIFFUSION AND ZERO ORDER REACTION IN POROUS CATALYSTS

被引：24

作者：

Rodrigues, Alirio E. ^{[1
]}

Orfao, Jose M. ^{[1
]}

Zoulalian, Andre ^{[2
]}

机构：

[1] Univ Oporto, Dept Chem Engn, P-4099 Oporto, Portugal

[2] Univ Technol Compiegne, Dept Genie Chim, F-60206 Compiegne, France

来源：

CHEMICAL ENGINEERING COMMUNICATIONS | 1984年 / 27卷 / 5-6期

关键词：

Catalysts; Catalytic reactor; Convection; Diffusion;

D O I：

10.1080/00986448408940509

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

An assessment is made of the influence of convective effects in the behaviour of catalyst pellets with large pores. Concentration profiles and effectiveness factors are calculated for zero order reactions in isothermal regimes using a model which involves convective transport as well as diffusion and reaction processes in the pellet. Errors made in current reactor design are discussed. A predictive method for calculating the intraparticle fluid velocity in industrial cases is reported. Finally, the analysis is applied to the design of biological reactors.

引用

页码：327 / 337

页数：11

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