The effect of Fe species distribution and acidity of Fe-ZSM-5 on the hydrothermal stability and SO2 and hydrocarbons durability in NH3-SCR reaction

CORC > 生态环境研究中心 > 中国科学院生态环境研究中心 > 大气污染控制中心

	The effect of Fe species distribution and acidity of Fe-ZSM-5 on the hydrothermal stability and SO2 and hydrocarbons durability in NH3-SCR reaction
	Shi, Xiaoyan; He, Hong; Xie, Lijuan
刊名	CHINESE JOURNAL OF CATALYSIS
	2015-04
卷号	36 期号:4 页码:649-656
关键词	Iron-ZSM-5 Ammonia selective catalytic reduction Removal of nitrogen oxide SO2 durability Hydrothermal stability
英文摘要	Fe-exchanged ZSM-5 catalysts prepared from Na+ and H+ forms of ZSM-5 were evaluated for the selective catalytic reduction of NOx by NH3 (NH3-SCR). Fe-H-ZSM-5 showed higher SCR activity than Fe-Na-ZSM-5 both when fresh and after hydrothermal aging at 750 degrees C in 5% H2O/air. The Fe species distribution and acidity of Fe-H-ZSM-5 and Fe-Na-ZSM-5 were found to be different. The dealumination of the zeolite framework of Fe-H-ZSM-5 during hydrothermal aging was found to be more severe compared with that of Fe-Na-ZSM-5. The durability of Fe-H-ZSM-5 and Fe-Na-ZSM-5 in NH3-SCR was compared using SO2 tolerance and hydrocarbon resistance experiments. The effect of water and SO2 on the activity of the two catalysts was similar, such that their activity decreased at low temperatures and increased at high temperatures. Fe-Na-ZSM-5 showed better propene resistance than Fe-H-ZSM-5. The SO2 and propene poisoning of the two Fe-ZSM-5 catalysts were found to be reversible. (C) 2015, Dalian Institute of Chemical Physics, Chinese Academy of Sciences. Published by Elsevier B.V. All rights reserved.
研究领域[WOS]	Chemistry, Applied ; Chemistry, Physical ; Engineering, Chemical
WOS记录号	WOS:000352678400024
公开日期	2016-03-15
内容类型	期刊论文
源URL	[http://ir.rcees.ac.cn/handle/311016/32487]
专题	生态环境研究中心_大气污染控制中心
推荐引用方式 GB/T 7714	Shi, Xiaoyan,He, Hong,Xie, Lijuan. The effect of Fe species distribution and acidity of Fe-ZSM-5 on the hydrothermal stability and SO2 and hydrocarbons durability in NH3-SCR reaction[J]. CHINESE JOURNAL OF CATALYSIS,2015,36(4):649-656.
APA	Shi, Xiaoyan,He, Hong,&Xie, Lijuan.(2015).The effect of Fe species distribution and acidity of Fe-ZSM-5 on the hydrothermal stability and SO2 and hydrocarbons durability in NH3-SCR reaction.CHINESE JOURNAL OF CATALYSIS,36(4),649-656.
MLA	Shi, Xiaoyan,et al."The effect of Fe species distribution and acidity of Fe-ZSM-5 on the hydrothermal stability and SO2 and hydrocarbons durability in NH3-SCR reaction".CHINESE JOURNAL OF CATALYSIS 36.4(2015):649-656.