Catalytic oxidation of ethane over supported metal oxide catalysts

被引：8
|
作者：
Tahir, SF
Koh, CA
机构：
[1] Chemistry Department, King's College London, Strand, London
来源：
CHEMOSPHERE | 1997年 / 34卷 / 08期
关键词：
D O I：
10.1016/S0045-6535(97)00034-9
中图分类号：
X [环境科学、安全科学];
学科分类号：
08 ; 0830 ;
摘要：
SnO2 supported metal oxides (metal = Mn, Co, Cu, Ce, Ni) have been prepared by impregnation techniques and investigated for the complete oxidation of 0.2 vol.% ethane in an air stream using a bench scale rig. Mn oxide/SnO2 and Co oxide/SnO2 proved to be the most active catalysts in the complete oxidation of ethane in the temperature range 420-440 degrees C. Stability studies showed that Mn oxide/SnO2 was very stable compared to Co oxide/SnO2 which lost activity on re-testing in similar reaction conditions. This loss in activity could be associated with Co oxide (as Co3O4) surface modification due to the operating temperature (200-500 degrees C) and the presence of water formed during the reaction causing sintering, structural changes and valence state modification. (C) 1997 Elsevier Science Ltd.
引用
收藏
页码：1787 / 1793
页数：7
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