Oxidative dehydrogenation of isobutane on supported chromia catalysts

被引：53

作者：

Grabowski, R ^{[1
]}

Grzybowska, B ^{[1
]}

Sloczynski, J ^{[1
]}

Wcislo, K ^{[1
]}

机构：

[1] POLISH ACAD SCI,INST CATALYSIS & SURFACE CHEM,PL-30239 KRAKOW,POLAND

来源：

APPLIED CATALYSIS A-GENERAL | 1996年 / 144卷 / 1-2期

关键词：

supported chromia catalysts; oxidative dehydrogenation of isobutane;

D O I：

10.1016/0926-860X(96)00117-2

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：

Oxidative dehydrogenation, ODH, of isobutane has been performed on chromia supported on SiO2, Al2O3, TiO2, ZrO2 and MgO. The potassium promoted (K/Cr = 0.1) catalysts have also been examined. The supported chromia has been found active in the ODH of isobutane at relatively low temperatures 200-400 degrees C, the total activity and selectivity to isobutene depending on the nature of the support and the potassium presence. The highest selectivities to isobutene (ca. 70% at 5% conversion) and the isobutene yields of ca. 9% have been obtained for CrOx/TiO2 and K-promoted CrOx/Al2O3 preparations.

引用

页码：335 / 341

页数：7

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