正丁烯骨架异构化研究进展  

THE ADVANCESIN SKELETAL ISOMERIZATION OF 1-BUTENE

作　　者：王跃远 胡云峰[1] 刘宏鹏 徐晨瑀 

机构地区：[1]东北石油大学化学化工学院,黑龙江大庆163000 [2]哈尔滨石油学院,黑龙江哈尔滨150000

出　　处：《精细石油化工》2017年第6期66-72,共7页Speciality Petrochemicals

基　　金：中国石油科技创新基金研究项目(2012D-5006-0403)

摘　　要：介绍了正丁烯骨架异构化催化剂的活性中心、择性性能、反应机理、积碳过程和抑制积碳的方法。正丁烯在分子筛十元环孔道中通过单分子机理高选择性发生骨架异构反应。分子筛酸性中心与晶粒尺寸对积碳过程有重要的影响,减少晶粒尺寸会有更大的外比表面积,暴露出更多的孔口;较低B酸中心分布则更有利于抑制积碳。优化酸中心分布、缩小晶粒尺寸是提高骨架异构分子筛催化剂稳定性的研究方向。The active center,selective properties,reaction mechanism,carbon deposition process and method of inhibiting carbon of 1-butene skeletal isomerization catalyst were introduced.1-Butene in the 10-MR channels of molecular sieve are isomerized in high selectivity by single molecular mechanism.The acid sites and the grain size of the molecular sieve havean important influence on the carbon deposition process,and reducing the grain size will enlarge external surface area,thus exposemore orifices;the lower Bronsted acid center distribution is more benefit to inhibit carbon deposition.Optimizing the distribution of acid and reducing the grain size arethe research directions to improve the stability of catalyst in skeletal isomerization reaction.

关 键 词：异丁烯 正丁烯 骨架异构化 催化剂 分子筛 

分 类 号：TQ221.2[化学工程—有机化工]