NOx reduction performance of lean NOx catalyst and lean NOx adsorber using DME as reducing agent

被引：8
|
作者：
Erkfeldt, Sara
Palmqvist, Anders
Jobson, Edward
机构：
[1] Volvo Technol Corp, SE-41288 Gothenburg, Sweden
[2] Chalmers, Competence Ctr Catalysis, SE-41296 Gothenburg, Sweden
来源：
TOPICS IN CATALYSIS | 2007年 / 42-43卷 / 1-4期
关键词：
nitrogen oxides; NOx trap; NOx storage; HC-SCR; zeolite; alternative fuel; dimethyl ether; octane;
D O I：
10.1007/s11244-007-0168-0
中图分类号：
O69 [应用化学];
学科分类号：
081704 ;
摘要：
Commercially available lean NOx catalyst and lean NOx adsorber samples were tested in a synthetic exhaust gas bench with DME as reducing agent. The LNA catalyst gave a very high NOx conversion (> 80 %) over a wide temperature range (275-450 degrees C), and with low concentration of by-products such as NH3, N2O and methanol. The Cu-zeolite based LNC catalyst, however, showed practically no NOx conversion.
引用
收藏
页码：149 / 152
页数：4
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