文献类型：期刊文献

中文题名：ZSM-5沸石催化剂的失活历程和活性稳定性

英文题名：STUDY ON DEACTIVATION PROCESS AND ACTIVITY STABILITY OF ZSM-5 ZEOLITE

作者：陆铭[1];孙洪敏[2];郭燏[1];杨为民[2];朱子彬[1]

机构：[1]华东理工大学化工工艺研究所,上海200237;[2]上海石油化工研究院,上海201208

年份：2001

卷号：17

期号：4

起止页码：59

中文期刊名：石油学报（石油加工）

外文期刊名：Acta Petrolei Sinica(Petroleum Processing Section)

收录：CSTPCD;;Scopus;北大核心:【北大核心2000】；CSCD:【CSCD_E2011_2012】；

语种：中文

中文关键词：乙苯;ZSM-5沸石催化剂;烷基化反应;结焦;失活历程;活性稳定性

外文关键词：ZSM 5 zeolite; alkylation; coking; deactivation process; activity stability

摘要：研究了 ZSM-5分子筛催化剂上苯 /乙烯烷基化制乙苯反应体系的结焦失活历程。结果表明 ,失活历程经历高水平活性稳定期、活性衰退期和低水平活性稳定期 3个阶段。通过考察失活催化剂的孔结构及酸性质 ,分析了失活机理 ,认为采用降低强酸活性位和晶粒表面活性位这两种手段来改性催化剂 。
The coking and deactivation process of benzene and ethylene alkylation reaction over ZSM 5 zeolite was studied. The results indicated that accelerated deactivation process went through three periods, i.e., high level activity stable period, activity decline period and low level activity stable period. The mechanism was deducced from experimental characterization of pore structure and acid strengh and quality of coked zeolite catalyst. To improve the activity stability of ZSM 5 zeolite, it is recognized that the reduction of the strong acid active centers can be used as an effective means.