HZSM-5催化剂上间二甲苯异构化反应动力学研究  

Reaction Kinetics of m-Xylene isomeerization over zeolite hzsm-5

作　　者：李增和[1] 刘秀英[1] 马丽景 王雪梅[1] 白守礼 张仁佑[1] 

机构地区：[1]北京化工大学应用化学系

出　　处：《北京化工大学学报（自然科学版）》1997年第4期67-70,共4页Journal of Beijing University of Chemical Technology(Natural Science Edition)

基　　金：中国石化总公司资助

摘　　要：应用连续流动微反装置研究了ＨＺＳＭ－５分子筛上间二甲苯异构化反应动力学。通过计算机优化程序，求取了生成对二甲苯与邻二甲苯两个反应的表观速率常数之比及表现活化能之差。结果表明，对位选择性随温度降低而增大。The kinetic behavior of the isomerization of mxyline over zeolite HZSM5 has been studied by continuous flow microreactor. The ratio of apparent rate constants of mxylene converting into pxylene and oxylene has been calculated by using a computer optimum program. Also the difference of apparent activation energies between the above two processes has been calculated. The results showed that the paraselectivity for isomerization of mxylene increased with temperature decreasing.

关 键 词：间二甲苯 异构化 动力学 HZSM-5 分子筛催化剂 

分 类 号：O643.36[理学—物理化学] O625.11[理学—化学]