| 环氧乙烷合成银催化剂宏观动力学及失活分析 |
| |
| 引用本文： | 甘霖,王弘轼,朱炳辰,徐懋生,王忠良.环氧乙烷合成银催化剂宏观动力学及失活分析[J].化工学报,2001,52(11):969-973. |
| |
| 作者姓名： | 甘霖 王弘轼 朱炳辰 徐懋生 王忠良 |
| |
| 作者单位： | 华东理工大学化工系; 上海石油化工股份有限公司 |
| |
| 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
|
| 关 键 词： | 环氧乙烷 合成 宏观动力学 活性校正因子 失活 银催化剂 催化活性 乙烯 氧化 |
| 文章编号： | 0438-1157(2001)08-0969-05 |
| 修稿时间： | 2000年1月10日 |
GLOBAL KINETICS AND DEACTIVATION OF SILVER CATALYST FOR ETHYLENE OXIDE SYNTHESIS |
| |
| GAN Lin,WANG Hongshi,ZHU Bingchen,XU Maosheng,WANG Zhongliang.GLOBAL KINETICS AND DEACTIVATION OF SILVER CATALYST FOR ETHYLENE OXIDE SYNTHESIS[J].Journal of Chemical Industry and Engineering(China),2001,52(11):969-973. |
| |
| Authors: | GAN Lin WANG Hongshi ZHU Bingchen XU Maosheng WANG Zhongliang |
| |
| 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. |
| |
| Keywords: | ethylene oxide synthesis global kinetics activity correction factor deactivation |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
| 点击此处可从《化工学报》浏览原始摘要信息 |
|
点击此处可从《化工学报》下载全文 |
