The role of the acid strength of the catalysts in the skeletal isomerisation of n-butene

被引：20
|
作者：
Houzvicka, J [1 ]
Nienhuis, JG [1 ]
Ponec, V [1 ]
机构：
[1] Leiden Univ, Leiden Inst Chem, Gorlaeus Labs, NL-2300 RA Leiden, Netherlands
来源：
APPLIED CATALYSIS A-GENERAL | 1998年 / 174卷 / 1-2期
关键词：
skeletal isomerisation; N-butene; isobutene; acidity; ZSM-5;
D O I：
10.1016/S0926-860X(98)00192-6
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：
The role of acid strength in skeletal isomerisation of n-butene to isobutene was studied on a series of open-surface catalysts and several ZSM-5 samples. The highest selectivity was obtained on the open-surface catalysts of moderate acid strength (Ho ca. -5). When the acidity is lower, activity of the catalysts is not sufficient, when the acidity is too high, oligomerisation and by-product formation are induced. In this study, only limited modification of the acidity of zeolites had been achieved and therefore, the effects on butene isomerisation were not very pronounced and, they were observable only at high temperatures (ca. 750 K). (C) 1998 Elsevier Science B.V. All rights reserved.
引用
收藏
页码：207 / 212
页数：6
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