VEHICLE EXHAUST CATALYSIS .2. THE EFFECT OF TRACES OF SULFUR-DIOXIDE ON THE PERFORMANCE OF 3-WAY VEHICLE EMISSION CATALYSTS

被引：8
|
作者：
WHITTINGTON, BI [1 ]
JIANG, CJ [1 ]
TRIMM, DL [1 ]
机构：
[1] UNIV NEW S WALES, SCH CHEM ENGN & IND CHEM, SYDNEY, NSW 2052, AUSTRALIA
来源：
CATALYSIS TODAY | 1995年 / 26卷 / 01期
关键词：
D O I：
10.1016/0920-5861(95)00094-V
中图分类号：
O69 [应用化学];
学科分类号：
081704 ;
摘要：
The effect of small amounts of sulphur dioxide on the performance of a three-way vehicle exhaust catalyst has been studied. Removal of propane from a stoichiometric gas mixture containing oxygen was reduced, but the effect was largely reversible. Small amounts of SO2 poisoned irreversibly the steam reforming and water-gas shift reactions, apparently as a result of a support sulphate/metal sulphite/sulphide couple under oxidising-reducing conditions.
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页码：47 / 51
页数：5
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