NOx Storage-Reduction with CO over Combined Catalysts

被引：1
作者：
Xiao, Jianhua [1 ]
Li, Xuehui [2 ]
Wang, Lefu [2 ]
机构：
[1] Guangdong Police Coll, PRD Publ Safety Inst, Guangzhou 510230, Guangdong, Peoples R China
[2] South China Univ Technol, Sch Chem & Energy Engn, Guangzhou, Guangdong 510640, Peoples R China
来源：
ADVANCES IN ENVIRONMENTAL TECHNOLOGIES, PTS 1-6 | 2013年 / 726-731卷
基金：
中国国家自然科学基金;
关键词：
NO oxidation-storage; NOx storage-reduction; Pt/Ba/Al2O3; Mn/Ba/Al2O3; combined catalyst; OXIDATION; MECHANISMS; FTIR;
D O I：
10.4028/www.scientific.net/AMR.726-731.2214
中图分类号：
X [环境科学、安全科学];
学科分类号：
08 ; 0830 ;
摘要：
The combined catalysts Mn/Ba/Al2O3-Pt/Ba/Al2O3 and Mn/Ba/Al2O3+Pt/Ba/Al2O3 for NOx storage-reduction were investigated. Mn/Ba/Al2O3 indicated high activity of NO oxidation and NOx storage in the oxidation-storage reaction and certain reduction activity in the storage-reduction reaction. The combination of Pt/Ba/Al2O3 with Mn/Ba/Al2O3 could enhance the activity of NOx storage-reduction under dynamic lean-rich burn conditions. Compared to Pt/Ba/Al2O3 catalyst, although the Pt content decreased half over Mn/Ba/Al2O3-Pt/Ba/Al2O3 and Mn/Ba/Al2O3+Pt/Ba/Al2O3, the NOx conversion increased 9.4% and 6.3% at 350 degrees C. The pollutions such as NOx and CO could be eliminated effectively over two combined catalysts with low Pt content under dynamic lean-rich burn conditions.
引用
收藏
页码：2214 / +
页数：3
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