ZSM-5沸石催化剂上苯与乙烯气相烷基化反应工艺条件研究  

Effects of Reaction Conditions on Vapor Phase Alkyiation of Benzene with Ethylene Over ZSM-5 Zeolite Catalyst

作　　者：杨为民[1] 孙洪敏[1] 陈庆龄[1] 

机构地区：[1]上海石油化工研究院,上海201208

出　　处：《精细石油化工进展》2002年第3期1-3,共3页Advances in Fine Petrochemicals

摘　　要：研究了ZSM-5沸石催化剂上苯与乙烯气相烷基化反应工艺条件。较佳的工艺条件为:反应温度350～430℃,反应压力1.0～1.8 MPa,苯/乙烯摩尔比7～9,乙烯空速2～4.5 h^(-1)。在此条件下,乙烯转化率和乙基选择性大于99.4％。The reaction conditions for preparing ethylbenzene from benzene and ethylene by vapor phase alkylation over ZSM - 5 zeolite catalyst were studied. The optimum conditions for the alkylation of benzene with ethylene were as follows: temperature 350 - 430℃, pressure 1.0 - 1.8 MPa, ethylene WHSV 24.5 h-1 and mole ratio of benzene to ethylene 7 - 9. Under these conditions, the conversion of ethylene was more than 99.7 % and the selectivity of ethylbenzene plus diethylbenzene was more than 99.4 % .

关 键 词：ZSM-5沸石催化剂 苯 乙烯 气相烷基化 反应工艺条件 研究 

分 类 号：O643.3[理学—物理化学]