Storage-reduction of NOx over combined catalysts of Pt/Ba/Al2O3-Mn/Ba/Al2O3:: Carbon monoxide as reductant

被引：0
|
作者：
Deng, Sha [1 ]
Li, Xuehui [1 ]
Xiao, Jianhua [1 ]
Wang, Furong [1 ]
Wang, Lefu [1 ]
机构：
[1] S China Univ Technol, Sch Chem & Energy Engn, Guangzhou 510640, Guangdong, Peoples R China
来源：
JOURNAL OF NATURAL GAS CHEMISTRY | 2007年 / 16卷 / 02期
关键词：
nitrogen oxides; storage-reduction; lean burn; combined catalyst;
D O I：
10.1016/S1003-9953(07)60051-6
中图分类号：
O69 [应用化学];
学科分类号：
081704 ;
摘要：
Storage-reduction of NOx by carbon monoxide was investigated over combined catalysts of Mn/Ba/Al2O3-Pt/Ba/Al2O3, Combination of Mn/Ba/Al2O3 and Pt/Ba/Al2O3 catalysts in different ways showed excellent NO, storage-reduction performance and the content of Pt could be reduced by 50%. Not only the addition of 5Mn/15Ba/Al2O3 to 1Pt/15Ba/Al2O3 could improve its storage ability, but also enhance the NOx conversion consequently. NO. conversion over the combined catalysts (the combined catalysts I and 11) was increased under dynamic lean-rich burn conditions, the maximum NO, conversion increased from 69.4% to respectively 78.8% and 75.7% over two combined catalysts.
引用
收藏
页码：213 / 216
页数：4
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