✦ LIBER ✦

Role of supported metals in the selective reduction of nitrogen monoxide with hydrocarbons over metal/alumina catalysts

✍ Scribed by Hideaki Hamada; Yoshiaki Kintaichi; Megumu Inaba; Mitsunori Tabata; Tomohiro Yoshinari; Hiroshi Tsuchida

Publisher: Elsevier Science
Year: 1996
Tongue: English
Weight: 311 KB
Volume: 29
Category: Article
ISSN: 0920-5861
DOI: 10.1016/0920-5861(95)00263-4

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✦ Synopsis

The promoting effect of supported metals on alumina catalyst was investigated for the reduction of nitrogen monoxide in oxygen-rich atmospheres. For NO reduction with propene over impregnated C00/A1203, the first reaction step was found to be the oxidation of NO to NO 2 probably catalyzed by dispersed cobalt species. The next reaction step, which is the reaction of NO 2 with propene to form N 2, was considered to take place on the alumina surface. Although the activity of impregnated FeO/A120 3 was low because of the presence of large iron oxide particles catalyzing propene oxidation with dioxygen, FeO/A1203 prepared with sol-gel method showed excellent deNO x activity.

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