An optimal usage of NOx in a combined Pt/ceramic foam and a wall-flow monolith filter for an effective NOx-assisted soot oxidation

被引：15
|
作者：
Setiabudi, A [1 ]
Makkee, M [1 ]
Moulijn, JA [1 ]
机构：
[1] Delft Univ Technol, Sect Reactor & Catalysis Engn, NL-2628 BL Delft, Netherlands
来源：
TOPICS IN CATALYSIS | 2004年 / 30-1卷 / 1-4期
关键词：
CRT system; diesel filter; NO2; NOx; soot oxidation;
D O I：
10.1023/B:TOCA.0000029767.14069.eb
中图分类号：
O69 [应用化学];
学科分类号：
081704 ;
摘要：
An NO2-assisted soot oxidation based filter candidate consists of Pt-coated ceramic foam in combination with a wall-flow monolith is proposed to acquire for an optimal usage of exhaust NOx. The configuration is designed to operate as deep bed filtration on Pt/ceramic foam and surface filtration on the wall-flow monolith. The oxidation of soot by NO2 takes place by multicycle reaction in Pt/ceramic foam and by the normal CRT on the wall-flow monolith. The filter performs with a higher oxidation rate and a lower NO2-slip.
引用
收藏
页码：305 / 308
页数：4
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