GLOBAL KINETICS AND DEACTIVATION OF SILVER CATALYST FOR ETHYLENE OXIDE SYNTHESIS

GAN Lin; WANG Hongshi; ZHU Bingchen; XU Maosheng; WANG Zhongliang

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GLOBAL KINETICS AND DEACTIVATION OF SILVER CATALYST FOR ETHYLENE OXIDE SYNTHESIS

更新时间：2025-12-10

- GLOBAL KINETICS AND DEACTIVATION OF SILVER CATALYST FOR ETHYLENE OXIDE SYNTHESIS
- CIESC Journal Issue 11, (2001)
- 作者机构：
  
  1. 华东理工大学化工系
  2. 上海石油化工股份有限公司
- 作者简介：
- 基金信息：
- DOI：
  CLC：
- Online First：25 November 2001，
  
  Published：25 November 2001
- 稿件说明：
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GAN Lin, WANG Hongshi, ZHU Bingchen, et al. GLOBAL KINETICS AND DEACTIVATION OF SILVER CATALYST FOR ETHYLENE OXIDE SYNTHESIS[J]. CIESC Journal, 2001, (11).
DOI：

GAN Lin, WANG Hongshi, ZHU Bingchen, et al. GLOBAL KINETICS AND DEACTIVATION OF SILVER CATALYST FOR ETHYLENE OXIDE SYNTHESIS[J]. CIESC Journal, 2001, (11). DOI：

摘要

在工业生产的条件下用无梯度反应器研究了工业颗粒银催化剂上乙烯氧化合成环氧乙烷宏观动力学

得到了能反映该系统主副反应特性的双速率方程 .建立了二维非均相反应器模型

模拟并比较了工业生产操作数据

获得了该种催化剂的活性校正因子随使用时间变化的经验关联式和主副反应失活速率方程

Abstract

In this paper

the global kinetic rate equations of the main and side reactions of ethylene oxide synthesis are studied in a gradientless reactor under industrial operating conditions. The two-dimensional heterogeneous model of fixed-bed reactor is set up for the simulation of industrial reactor. The Crank-Nicholson predicrot-corrector method is used in the integration for the gas phase and the iteration method is used for the solid phase.The accuracy of reactor model

global kinetic equations and heat transfer parameters were tested by comparing the calculated values with industrial actual values.These also show that the other transfer parameters cited in the calculation are suitable.The activity correction factors of the main and side reactions are correlated with time by regression of industrial operation data.The main and side reaction deactivation rates of sliver catalyst of ethylene oxide synthesis are also obtained through further research.The deactivation rates are used to forecasting the suitable time when the catalyst should be replaced and to optimize operating conditions in the later period of catalyst activity.

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