介孔分子筛负载型乙苯脱氢催化剂研究  

Studies on Mesoporous Molecular Sieve Supported Ethylbenzene Dehydrogenation Catalysts

作　　者：李惠云[1] 孙渝[1] 乐英红[1] 高滋[1] 

机构地区：[1]复旦大学化学系

出　　处：《复旦学报（自然科学版）》1999年第1期61-66,共6页Journal of Fudan University：Natural Science

基　　金：国家攀登计划项目资助课题

摘　　要：考察了α－Ｆｅ２Ｏ３在ＭＣＭ－４１，ＨＭＳ和ＫＩＴ－１三类介孔分子筛上的分散情况，以及介孔分子筛负载氧化铁催化剂的乙苯脱氢性能．实验结果表明，α－Ｆｅ２Ｏ３能有效地分散在介孔分子筛的表面上，其分散阈值远高于其他载体，由此大大提高了乙苯脱氢反应的活性．Dispersion of α Fe 2O 3 on mesoporous molecular sieves, such as MCM 41, HMS and KIT 1, and ethylbenzene dehydrogenation activities of the mesoporous molecular sieve supported α Fe 2O 3 catalysts have been studied. The results show that α Fe 2O 3 can be highly dispersed onto the surface of the mesoporous molecular sieves, and its dispersion capacities on the mesoporous molecular sieves are much larger than those on other oxide and zeolite supports. Hence the specific activity of the supported catalysts towards ethylbenzene dehydrogenation is obviously increased. However, incorporation of potassium into the supported catalysts brings unfavourable effect.

关 键 词：介孔分子筛 负载型 氧化铁催化剂 乙苯 脱氢 

分 类 号：O625.11[理学—有机化学] O643.36[理学—化学]