Zeolites in the environmental protection — Decomposition of chlorofluorocarbons over zeolite catalysts

被引：0

作者：

Applied Chemistry Department, József Attila University, Rerrich Béla tér 1, Szeged ^{[1
]}

H-6720, Hungary

机构：

来源：

Stud. Surf. Sci. Catal. | / 1509-1516期

基金：

新加坡国家研究基金会;

关键词：

Transition metal compounds - Metal ions - Ion exchange - Zeolites;

D O I：

暂无

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学科分类号：

摘要：

Adsorption and decomposition of CFC-10, -11, -12 and -22 were investigated on different Y-FAU zeolites. The dominant role of acidity in the decomposition was observed. Transition metal ions resulted in enhancement of both the formation and the decomposition of phosgene as a surface intermediate. In the case of CFC-22, due to its hydrogen content, secondary generation of surface OH groups was found as a consequence of complex halogenation, ion exchange and dealumination reactions occurring simultaneously. © 1997 Elsevier B.V.

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