Approximate Analytical Solutions of EffectivenessFactor for Porous Catalysts (Ⅱ) Comparison between Analytical and Numerical Solutions

Yang Jin and Li Shaofen(Department of Chemical Engineering; Tianjin University)

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Approximate Analytical Solutions of EffectivenessFactor for Porous Catalysts (Ⅱ) Comparison between Analytical and Numerical Solutions

更新时间：2025-12-16

- Approximate Analytical Solutions of EffectivenessFactor for Porous Catalysts (Ⅱ) Comparison between Analytical and Numerical Solutions
- CIESC Journal Issue 1, (1987)
- 作者机构：
  
  天津大学化学工程系,天津大学化学工程系
- 作者简介：
- 基金信息：
- DOI：
  CLC：
- Online First：25 March 1987，
  
  Published：25 March 1987
- 稿件说明：
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Yang Jin and Li Shaofen(Department of Chemical Engineering, Tianjin University). Approximate Analytical Solutions of EffectivenessFactor for Porous Catalysts (Ⅱ) Comparison between Analytical and Numerical Solutions[J]. CIESC Journal, 1987, (1).
DOI：

Yang Jin and Li Shaofen(Department of Chemical Engineering, Tianjin University). Approximate Analytical Solutions of EffectivenessFactor for Porous Catalysts (Ⅱ) Comparison between Analytical and Numerical Solutions[J]. CIESC Journal, 1987, (1). DOI：

摘要

根据本文第Ⅰ部分所提出的多孔催化剂有效因子近似计算式

针对不同形式的幂函数型动力学方程和双曲型动力学方程

计算了等温下Thiele模数不同时非一级反应的有效因子

并且用数值方法求出相应条件下的有效因子以作比较.大量的计算结果证明所提出的近似计算式较之文献上已有的近似式

不但精度高

而且适用范围广.同时近似式中参数估值简便

克服了以往研究者所提出的式子中这方面所存在的困难.

Abstract

According to the approximate analytical expression for effectiveness factorpreviously proposed by the authors

a great deal of calculations are made with power law type kinetic expressions and Langmuir-Hinshelwood kinetic expressions for three onedimensional catalyst pellets. The results show that our approximate solutions agree fairly well with the exact values obtained by numerical method in all circumstances investigated. The comparison with other approximate expressions in literature is made. As our expression is based on the analysis of the characteristics of the reaction system

the exactness is higher

the calculation is much easier

and above all

its scope of application is wider.

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