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| 贫燃型汽车尾气NOx的催化净化 | |
| 引用本文： | 朱天乐,郝吉明,傅立新,李俊华.贫燃型汽车尾气NOx的催化净化[J].北京航空航天大学学报,2004,30(10):1025-1028. |
| 作者姓名： | 朱天乐 郝吉明 傅立新 李俊华 |
| 作者单位： | 1. 北京航空航天大学 材料科学与工程学院 北京 100083; 2. 清华大学 环境科学与工程系，北京 100084 |
| 基金项目： | 国家高技术研究发展计划(863计划) |
| 摘 要： | 用溶胶-凝胶混合法制备了Al2O3,Ag/Al2O3,Sn/Al2O3,Ga/Al2O3,Co/Al2O3和Pt/Al2O3等催化剂.在相同实验条件下,比较了C3H6在这些催化剂上还原NO的活性,并考察了反应条件对C3H6和CH3OH在Ag/Al2O3上还原NO性能的影响.结果表明,Ag/Al2O3的还原NO活性优于其它催化剂.H2O对Ag/Al2O3催化剂的NO还原具有可逆抑制作用,SO2降低C3H6在Ag/Al2O3上还原NO的活性,但会显著提高CH3OH还原NO的活性. |
| 关 键 词： | 一氧化氮 丙烯 催化还原 甲醇 |
| 文章编号： | 1001-5965(2004)10-1025-04 |
| 收稿时间： | 2004-04-28 |
| 修稿时间： | 2004年4月28日 |
Catalytic removal of nitrogen oxides for the lean-burn automobile exhaust |
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| Zhu Tianle,Hao Jiming,Fu Lixin,Li Junhua.Catalytic removal of nitrogen oxides for the lean-burn automobile exhaust[J].Journal of Beijing University of Aeronautics and Astronautics,2004,30(10):1025-1028. | |
| Authors: | Zhu Tianle Hao Jiming Fu Lixin Li Junhua |
| Institution: | 1. School of Materials Science and Engineering, Beijing University of Aeronautics and Astronautics， Beijing 100083, China; 2. Department of Environmental Science and Engineering, Tsinghua University, Beijing 100084, China |
| Abstract: | Al 2O 3, Ag/Al 2O 3, Sn/Al 2O 3, Ga/Al 2O 3, Co/Al 2O 3 and Pt/Al 2O 3 catalysts were prepared by the sol-gel mixture method and the activities of NO reduction by C 3H 6 over the catalysts were compared in the presence of oxygen. The Ag/Al 2O 3 displayed the highest NO reduction activity among catalysts studied. The effects of reaction conditions on NO reduction by C 3H 6 and CH 3OH over Ag/Al 2O 3 were also investigated. The results showed that the presence of H 2O resulted in a decrease in the NO reduction activity and the inhibition effect was reversible. In the presence of SO 2 the activity of NO reduction by CH 3OH significantly increased while that of NO reduction by C 3H 6 decreased. |
| Keywords: | nitrogen monoxide propene catalytic reduction methanol |
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