| C3H6和NO在Cu-Al-MCM-41催化剂上的反应和吸附行为 |
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| 引用本文： | 万颖,王正,马建新,张益群,周伟.C3H6和NO在Cu-Al-MCM-41催化剂上的反应和吸附行为[J].华东理工大学学报(自然科学版),2002,28(3):285-288,299. |
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| 作者姓名： | 万颖 王正 马建新 张益群 周伟 |
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| 作者单位： | 华东理工大学工业催化研究所,上海,200237 |
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| 基金项目： | "跨世纪优秀人才培养计划"资助项目;教育部重点科技资助项目(93039) |
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| 摘 要： | 利用XRD、NMR、N2吸附等温线、TPD、原位红外（in situFTIR）和程序升温技术等手段考察了Cu-Al-MCM-41的结构特征、化学吸附性能和催化NO选择性还原的反应活性。经Cu离子交换的Al-MCM-41半未改变载体的结构特征,仍保持长程有序的中孔结构。C3H6和NOCu-Al-MCM-41发生竞争吸附。C3H6在反应中起双重作用：一方面,提供NO选择性还原的还原物种;由于其在催化剂上的吸附而阻抑了NO的吸附。
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| 关 键 词： | C3H6 NO 催化剂 反应 吸附行为 选择性催化还原 贫燃 尾气处理 |
| 文章编号： | 1006-3080(2002)03-0285-04 |
Adsorption and Reaction of Propylene and Nitrogen Oxide on Cu-Al-MCM-41 |
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| WAN Ying,WANG Zheng,MA Jian xin ,ZHANG Yi qun,ZHOU Wei.Adsorption and Reaction of Propylene and Nitrogen Oxide on Cu-Al-MCM-41[J].Journal of East China University of Science and Technology,2002,28(3):285-288,299. |
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| Authors: | WAN Ying WANG Zheng MA Jian xin ZHANG Yi qun ZHOU Wei |
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| Institution: | WAN Ying,WANG Zheng,MA Jian xin *,ZHANG Yi qun,ZHOU Wei |
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| Abstract: | Al MCM 41 and Cu Al MCM 41 were prepared by a modified hydrothermal method. The characterization using XRD, NMR and N 2 isothermal adsorption revealed that the structure of Al MCM 41 remained unchanged after the exchange of copper ion. The chemisorptive properties of Cu Al MCM 41 as well as its catalytic activity for the reaction of NO by C 3H 6 were investigated by TPD, in situ FTIR and temperature program reaction techniques. It was found that both propylene and NO could adsorb on the copper sites but the adsorption of propylene was more competitive. Thus, C 3H 6 not only played the role as reductant but also caused the inhibition of the adsorption of NO, which affected the conversion efficiency in turn. |
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| Keywords: | Cu Al MCM 41 selective catalytic reduction co adsorption lean burn |
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