Isomerization of n-butane over acid zeolites -: Role of Broensted and Lewis acid sites

被引：21

作者：

Baburek, E ^{[1
]}

Nováková, J ^{[1
]}

机构：

[1] Acad Sci Czech Republ, J Heyrovsky Inst Phys Chem, CR-18223 Prague 8, Czech Republic

来源：

APPLIED CATALYSIS A-GENERAL | 1999年 / 185卷 / 01期

关键词：

n-butane isomerization; zeolites; role of Broensted and Lewis acid sites;

D O I：

10.1016/S0926-860X(99)00128-3

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Skeletal isomerization of n-butane to isobutane was studied over HM, HZSM-5 and H-beta zeolites. The Lewis/Broensted ratio of acid sites was changed by vacuum treatment of the samples to 650 degrees C. gamma-Alumina and CoAlPO containing considerable portion of Lewis acid sites were also employed. It was found that the increased number of Lewis acid sites results in a substantial suppression of the n-butane conversion as well as selectivity to isobutane. (C) 1999 Elsevier Science B.V. All rights reserved.

引用

页码：123 / 130

页数：8

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