On the Product Formation in 1-Butene Metathesis over Supported Tungsten Catalysts

被引：31

作者：

Harmse, Liesel ^{[1
,2
]}

van Schalkwyk, Charl ^{[2
]}

van Steen, Eric ^{[1
]}

机构：

[1] Univ Cape Town, Dept Chem Engn, Ctr Catalysis Res, ZA-7701 Rondebosch, South Africa

[2] Sasol Technol Res & Dev, ZA-1947 Sasolburg, South Africa

来源：

CATALYSIS LETTERS | 2010年 / 137卷 / 3-4期

关键词：

1-Butene metathesis; Tungsten; Silica-alumina; RHENIUM OXIDE; OLEFIN METATHESIS; INDUSTRIAL-ENVIRONMENT; MESOPOROUS ALUMINA; WO3/SIO2; CATALYST; SILICA; ISOMERIZATION; PROPENE; ACIDITY; CHARGE;

D O I：

10.1007/s10562-010-0345-9

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：

1-Butene metathesis was performed over 8 wt% tungsten catalysts supported on silica, silica-alumina and gamma-Al(2)O(3). Under the applied reaction conditions, 1-butene metathesis yields with a relatively large selectivity iso-butene in addition to the expected metathesis products. The isobutene selectivity is high for catalysts with a relative low activity and decreases with increasing metathesis activity. It is deduced that iso-butene formation involves surface tungsten complexes, whose formation inhibits the metathesis activity.

引用

页码：123 / 131

页数：9

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