| Cu-Mg-Al催化剂上NO_x储存及分解性能研究 | |
| 康守方 ; 李俊华 ; 傅立新 ; 郝郑平 ; KANG Shou-fang ; LI Jun-hua ; FU Li-xin ; HAO Zheng-ping | |
| 2010-06-10 ; 2010-06-10 | |
| 关键词 | 氮氧化物 储存 贫燃 水滑石复合氧化物 nitrogen oxide storage lean burn hydrotalcite mixed oxide TK401 |
| 其他题名 | NO_x Storage and Decomposition Behavior of Cu-Mg-Al Catalyst |
| 中文摘要 | 采用共沉淀方法制备了Cu-Mg-Al水滑石混合氧化物催化剂,并对该催化剂及其前驱物进行了XRD表征.使用等温吸附、程序升温脱附以及C3H6程序升温表面反应分别考察了催化剂上NOx储存及分解反应性能.结果表明,由于Cu-Mg-Al催化剂中CuO组分发挥了NO氧化作用,促进了进气中NOx以硝酸盐方式吸附在催化剂上,因此该催化剂具有很好的NOx储存性能;在富燃条件下,C3H6能够显著降低催化剂上硝酸盐的热稳定性,在160-360℃温度范围内,这些硝酸盐会迅速分解成气态NOx,同时随着C3H6加入量的提高,C3H6也可以将少量气态NOx进行还原.; Cu-Mg-Al hydrotalcite mixed oxide was prepared by co-precipitation.The mixed oxide and its procurer were characterized by XRD.NO_x storage performance and decomposition of the stored NO_x over the catalyst were investigated by NO_x storage experiment at constant temperature,temperature programmed desorption(TPD) and temperature programmed surface reaction(TPSR),respectively.The results indicate that Cu-Mg-Al hydrotalcite mixed oxide has a good performance of NO_x storage.The formed nitrate can be decomposed to gaseous NO_x rapidly in the investigated temperature range of 160～360 ℃,and a small amount of gaseous NO_x can be reduced by C_3H_6 with increasing the concentration of C_3H_6 in the inlet gas.; 国家自然科学基金项目(20507012) |
| 语种 | 中文 ; 中文 |
| 内容类型 | 期刊论文 |
| 源URL | [http://hdl.handle.net/123456789/65625]  |
| 专题 | 清华大学 |
| 推荐引用方式 GB/T 7714 | 康守方,李俊华,傅立新,等. Cu-Mg-Al催化剂上NO_x储存及分解性能研究[J],2010, 2010. |
| APA | 康守方.,李俊华.,傅立新.,郝郑平.,KANG Shou-fang.,...&HAO Zheng-ping.(2010).Cu-Mg-Al催化剂上NO_x储存及分解性能研究.. |
| MLA | 康守方,et al."Cu-Mg-Al催化剂上NO_x储存及分解性能研究".(2010). |
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