化学学报 ›› 1996, Vol. 54 ›› Issue (8): 750-755. 上一篇    下一篇

研究论文

用CA模型研究SO2在锰盐表面上的催化氧化反应

潘慧云;张波涛   

  1. 郑州大学化学系;信息工程学院物理组
  • 发布日期:1996-08-15

A CA study on the catalytic oxidation of SO2 by manganese salts

PAN HUIYUN;ZHANG BOTAO   

  • Published:1996-08-15

本文用CA模型借助部分模拟法求得SO2在锰盐表面上催化氧化反应的动力学相图; 若反应按Langmuir-Hinshelwood机制进行, 且H2O以气态出现, 则模拟结果表明, 相图中有四个双组分中毒相和一个反应相, 反应相在一个线性的浓度区域上出现; 如在催化反应过程中, 尚需考虑反应物种的脱附, 则反应相将随脱附几率的增加而扩大。

关键词: 二氧化硫, 锰化合物, 催化氧化, 相图

The kinetic phase diagram for the catalytic oxidation of SO2 by manganese salts is determined with the partial simulation method on the basis of the CA model, only the Langmuir-Hinshelwood mechanism is considered and H2O is assumed to be originally in the gas phase, simulation results show that, if no desorption of adsorbed species is considered, the phase diagram has four two-species poisoned phases and one reaction phase which is a linear region; and the other hand, when the desorption of H2O is taken into account, the region of the reaction phase will be extended.

Key words: SULFUR DIOXIDE, MANGANESE COMPOUNDS, CATALYTIC OXIDATION, PHASE DIAGRAM

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