AB-97型气相烷基化制乙苯催化剂的研制及工业应用  

Research and Commercial Application of AB-97 Catalysts for Preparing Ethylbenzene by Vapour Phase Alkylation

作　　者：孙洪敏[1] 杨为民[1] 廖宝星[2] 郑久成[2] 

机构地区：[1]中石化股份有限公司上海石油化工研究院,上海201208 [2]中石化股份有限公司广州分公司,广东广州510726

出　　处：《化学反应工程与工艺》2006年第3期206-211,共6页Chemical Reaction Engineering and Technology

摘　　要：研究了 ZSM-5分子筛的硅铝比、晶粒尺寸和改性方法对催化剂活性和稳定性的影响。实验室中催速老化和1 000 h 的稳定性对比试验结果表明,AB-97型催化剂的活性稳定性和选择性均优于参比催化剂。工业试用的第一个运转周期内两次标定结果,在反应器人口温度389℃,乙烯质量空速1.97～1.99 h^(-1)的条件下,乙烯总转化率99.51%,乙基选择性99.27%以上,且再生性能良好。与进口催化剂相比,AB-97型催化剂具有再生周期长,活性稳定性和选择性好等特点。The effects of zeolite SiO2/Al2O3 ratio, crystal size and modification methods on the activity and stability of ZSM-5 zeolite catalyst were studied. The active stability and selectivity of catalyst AB-97 were superior to those of referential catalyst under the conditions of accelerated aging and paralleled test of 1 000 hours in the laboratory. The total ethylene conversion and ethylbenzene selectivity were higher than 99.51% and 99.27% respectively at a temperature of 389 ℃, an ethylene WHSV range of 1. 97- 1. 99 h^-1 , during fist commercial use and also exhibited good regeneration performance. In comparison with imported catalysts, AB-97 catalyst has the characteristics of long regeneration period, good active stability and selectivity.

关 键 词：烷基化 乙苯 沸石分子筛 催化剂 工业应用 

分 类 号：TQ241.1[化学工程—有机化工] O625.11[理学—有机化学]