Simultaneously catalytic removal of NOx and particulate matter on diesel particulate filter

被引：0
|
作者：
Liu, GH [1 ]
Huang, Z [1 ]
Shangguan, WF [1 ]
Yan, CX [1 ]
机构：
[1] Shanghai Jiao Tong Univ, Sch Mech & Power Engn, Shanghai, Peoples R China
来源：
CHINESE SCIENCE BULLETIN | 2003年 / 48卷 / 03期
关键词：
diesel; NOx; particulate matter; simultaneous removal; catalysis;
D O I：
暂无
中图分类号：
O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];
学科分类号：
07 ; 0710 ; 09 ;
摘要：
The simultaneous removal of NO, and particulate matter (PM) exhausted from diesel engine was studied with a diesel particulate filter (DPF) on which a mixed metal oxide catalyst, Cu0.95K0.05Fe2O4 was loaded. The NOx reduction was observed in the same temperature range of the CO2 formation, implying the occurrence of the simultaneous removal of NOx and PM in an oxidizing atmosphere. It was shown that SOF and soot in PM are attributed to the reduction of NOx at lower and higher temperatures, respectively. The oxidation of PM was enhanced by the coexistence of NO and O-2. The ignition and exhaustion temperatures of PM decrease as the order NO>O-2>NO+O-2. This is a combined process of PM trapping as well as the catalytic reactions of soot oxidation and NO, reduction, promising the most desirable after-treatment of diesel exhausts.
引用
收藏
页码：305 / 308
页数：4
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