A comprehensive investigation of influences of NO and O-2 on N2O-SCR by CH4 over Fe-USY zeolite

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	A comprehensive investigation of influences of NO and O-2 on N2O-SCR by CH4 over Fe-USY zeolite
	Shen, Qun; Li, Landong; He, Chi; Tian, Hua; Hao, Zhengping; Xu, Zhi Ping
刊名	APPLIED CATALYSIS B-ENVIRONMENTAL
	2009-09-07
卷号	91 期号:1 页码:262-268
关键词	Fe-USY zeolite N2O-CH4 SCR NO inhibition NO-assisted N2O decomposition N2O-CO SCR
中文摘要	The catalytic reduction behaviors of N2O by CH4 have been investigated over Fe-USY catalyst by examining the influences of CH4, NO, O-2, or their mixtures in detail. The observations show that NO and O-2, which inevitably exist in the gases emitted from industrial sources, such as the nitric acid plant, inhibit the selective catalytic reduction of N2O by CH4 (N2O-CH4 SCR) to some degree, shifting the temperature for >90% N2O conversion to over 450 degrees C. The prohibition of O-2, can be ascribed to its occupying active sites and oxidizing CH4-derived intermediates. The negative effect of NO is very prominent, inhibiting the N2O conversion by strongly occupying the active sites and gradually moving the reaction pathways from N2O-CH4 SCR to NO-assisted N2O decomposition, where the former is more efficient than the latter for N2O decomposition under the same operation conditions. In addition, the amount of reducing agent CH4 has also influenced the N2O conversion profile. (C) 2009 Elsevier B.V. All rights reserved.
WOS记录号	WOS:000269374400033
内容类型	期刊论文
源URL	[http://ir.rcees.ac.cn/handle/311016/21627]
专题	生态环境研究中心_环境纳米材料实验室
推荐引用方式 GB/T 7714	Shen, Qun,Li, Landong,He, Chi,et al. A comprehensive investigation of influences of NO and O-2 on N2O-SCR by CH4 over Fe-USY zeolite[J]. APPLIED CATALYSIS B-ENVIRONMENTAL,2009,91(1):262-268.
APA	Shen, Qun,Li, Landong,He, Chi,Tian, Hua,Hao, Zhengping,&Xu, Zhi Ping.(2009).A comprehensive investigation of influences of NO and O-2 on N2O-SCR by CH4 over Fe-USY zeolite.APPLIED CATALYSIS B-ENVIRONMENTAL,91(1),262-268.
MLA	Shen, Qun,et al."A comprehensive investigation of influences of NO and O-2 on N2O-SCR by CH4 over Fe-USY zeolite".APPLIED CATALYSIS B-ENVIRONMENTAL 91.1(2009):262-268.