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	The mechanism of SO2 effect on NO reduction with propene over In2O3/Al2O3 catalyst
	Luo, Chuankui ; Li, Junhua ; Zhu, Yongqing ; Hao, Jiming
	2010-05-10 ; 2010-05-10
会议名称	CATALYSIS TODAY ; Air Pollution Abatement Catalysis Symposium (APAC) ; Cracow, POLAND ; Web of Science
关键词	DeNO(x) selective catalytic reduction SO2 In2O3/Al2O3 sol-gel method ANGULAR-CORRELATION CHARACTERIZATION SELECTIVE REDUCTION OXYGEN HYDROCARBONS DEACTIVATION IN/H-ZSM5 IN/AL2O3 H2O Chemistry, Applied Chemistry, Physical Engineering, Chemical
中文摘要	An In2O3/Al2O3 catalyst shows high activity for the selective catalytic reduction of NO with propene in the presence of oxygen. The presence of SO2 in feed gas suppressed the catalytic activity dramatically at high temperatures; however it was enhanced in the low temperature range of 473573 K. In TPD and FT-IR studies, the formation of sulfate species on the surface of the catalyst caused an inhibition of NOx adsorption sites, and the absorbance ability of NO was suppressed by the presence Of SO2, and the amount of ad-NO3- species decreased obviously. This leads to a decrease of catalytic activity at higher temperatures. However, addition Of SO2 enhanced the formation of carboxylate and formate species, which can explain the promotional effect Of SO2 at low temperature, because active C3H6 (partially oxidized C3H6) is crucial at low temperature. (c) 2006 Elsevier B.V. All rights reserved.
会议录出版者	ELSEVIER SCIENCE BV ; AMSTERDAM ; PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
语种	英语 ; 英语
内容类型	会议论文
源URL	[http://hdl.handle.net/123456789/18897]
专题	清华大学
推荐引用方式 GB/T 7714	Luo, Chuankui,Li, Junhua,Zhu, Yongqing,et al. The mechanism of SO2 effect on NO reduction with propene over In2O3/Al2O3 catalyst[C]. 见:CATALYSIS TODAY, Air Pollution Abatement Catalysis Symposium (APAC), Cracow, POLAND, Web of Science.

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