Poisoning effect of sulphate on the selective catalytic reduction of NOx by C3H6 over Ag-Pd/Al2O3

CORC > 生态环境研究中心 > 中国科学院生态环境研究中心 > 环境化学与生态毒理学国家重点实验室

	Poisoning effect of sulphate on the selective catalytic reduction of NOx by C3H6 over Ag-Pd/Al2O3
	Xie, Shuxia; Wang, Jin; He, Hong
刊名	JOURNAL OF MOLECULAR CATALYSIS A-CHEMICAL
	2007-04-02
卷号	266 期号:1 页码:166-172
关键词	Ag-Pd/Al2O3 enolic species in situ DRIFTS sulphate TPD
英文摘要	The Ag-Pd/Al2O3 catalyst showed a higher NO, conversion than Ag/Al2O3 in the selective catalytic reduction (SCR) of NQ, by C3H6 especially at temperatures ranging from 573 to 773 K. However, the presence Of SO2 in the feed gas decreased the activity of NQ, reduction over AgPd/Al2O3 more greatly than that over Ag/Al2O3. The sulphate species formed on the poisoned Ag-Pd/Al2O3 and Ag/Al2O3 were characterized by BET, inductively couple plasma optical emission spectrometer (ICP-OES), XRD, temperature programmed desorption (TPD) and in situ diffuse reflectance infra-red fourier transform spectroscopy (DRIFFS) methods. Two kinds of sulphate species were found on the SO2 poisoned AgPd/Al2O3 catalyst, and the formation of nitrate was blocked by the surface sulphate species. The addition of Pd into Ag/Al2O3 promoted the formation of sulphate on the Ag sites in the presence of SO2, which was considered to be the possible reason for the weak sulphur resistance of Ag-Pd/Al2O3. (c) 2006 Elsevier B.V. All rights reserved.
WOS记录号	WOS:000245672000025
内容类型	期刊论文
源URL	[http://ir.rcees.ac.cn/handle/311016/22493]
专题	生态环境研究中心_环境化学与生态毒理学国家重点实验室
推荐引用方式 GB/T 7714	Xie, Shuxia,Wang, Jin,He, Hong. Poisoning effect of sulphate on the selective catalytic reduction of NOx by C3H6 over Ag-Pd/Al2O3[J]. JOURNAL OF MOLECULAR CATALYSIS A-CHEMICAL,2007,266(1):166-172.
APA	Xie, Shuxia,Wang, Jin,&He, Hong.(2007).Poisoning effect of sulphate on the selective catalytic reduction of NOx by C3H6 over Ag-Pd/Al2O3.JOURNAL OF MOLECULAR CATALYSIS A-CHEMICAL,266(1),166-172.
MLA	Xie, Shuxia,et al."Poisoning effect of sulphate on the selective catalytic reduction of NOx by C3H6 over Ag-Pd/Al2O3".JOURNAL OF MOLECULAR CATALYSIS A-CHEMICAL 266.1(2007):166-172.