Neodymium promotion on the low-temperature hydrothermal stability of a Cu/SAPO-34 NH3-SCR monolith catalyst

doi:10.1016/j.jtice.2017.09.036

	Neodymium promotion on the low-temperature hydrothermal stability of a Cu/SAPO-34 NH3-SCR monolith catalyst
	Chen, Yaoqiang 1,2,4; Xu, Haidi 4; Feng, Xi 1; Lin, Qingjin 2; Cao, Yi 3; Zhang, Hailong 1; Li, Yuanshan 1; Lin, Chenlu 2
刊名	JOURNAL OF THE TAIWAN INSTITUTE OF CHEMICAL ENGINEERS
	2017-11-01
卷号	80 页码:805-812
关键词	Cu/sapo-34 Neodymium Nh3-scr Low-temperature Hydrothermal Stability
ISSN号	1876-1070
DOI	10.1016/j.jtice.2017.09.036
文献子类	Article
英文摘要	Nd modified Cu/SAP0-34 catalyst for selective catalytic reduction of NOx, by NH3 (NH3-SCR) is prepared by wet-impregnation method and the catalytic performance and low-temperature hydrothermal (LTH) stability are evaluated. The catalyst shows little effect on the fresh activity but presents excellent LTH resistance by the incorporation of Nd. After LTH treatment, the catalytic performance barely changed for CuNd/SAPO-34, while significantly de'graded for Cu/SAPO-34 below 400 degrees C. Meanwhile, the NOx conversion at 200 degrees C for the aged catalyst is enhanced from 64% to 86% by adding Nd. In addition, the catalysts are characterized using N-2 sorption, XRD, SEM, DRIFTS, H-2-TPR and XPS. The results reveal that the destruction of zeolite framework by the attack of vapor is evidently inhibited and the stability of copper species is also improved during LTH treatment by the introduction of Nd. Consequently, the LTH stability of CuNd/SAPO-34 is much better than that of Cu/SAPO-34. (C) 2017 Taiwan Institute of Chemical Engineers. Published by Elsevier B.V. All rights reserved.
WOS关键词	REDUCTION ; NOX ; AMMONIA ; NH3 ; SAPO-34 ; CU-SSZ-13 ; ZEOLITE ; CU/SSZ-13 ; TEMPLATE ; EXHAUST
WOS研究方向	Engineering
语种	英语
出版者	ELSEVIER SCIENCE BV
WOS记录号	WOS:000415769200091
内容类型	期刊论文
源URL	[http://cas-ir.dicp.ac.cn/handle/321008/169254]
专题	大连化学物理研究所_中国科学院大连化学物理研究所
通讯作者	Chen, Yaoqiang; Xu, Haidi
作者单位	1.Sichuan Univ, Coll Chem Engn, Chengdu 610065, Sichuan, Peoples R China 2.Sichuan Univ, Coll Chem, Minist Educ, Key Lab Green Chem & Technol, Chengdu 610064, Sichuan, Peoples R China 3.Chinese Acad Sci, Dalian Inst Chem Phys, Dalian Natl Lab Clean Energy, Natl Engn Lab Methanol Olefins, Dalian 116023, Peoples R China 4.Sichuan Univ, Inst New Energy & Low Carbon Technol, Chengdu 610065, Sichuan, Peoples R China
推荐引用方式 GB/T 7714	Chen, Yaoqiang,Xu, Haidi,Feng, Xi,et al. Neodymium promotion on the low-temperature hydrothermal stability of a Cu/SAPO-34 NH3-SCR monolith catalyst[J]. JOURNAL OF THE TAIWAN INSTITUTE OF CHEMICAL ENGINEERS,2017,80:805-812.
APA	Chen, Yaoqiang.,Xu, Haidi.,Feng, Xi.,Lin, Qingjin.,Cao, Yi.,...&Lin, Chenlu.(2017).Neodymium promotion on the low-temperature hydrothermal stability of a Cu/SAPO-34 NH3-SCR monolith catalyst.JOURNAL OF THE TAIWAN INSTITUTE OF CHEMICAL ENGINEERS,80,805-812.
MLA	Chen, Yaoqiang,et al."Neodymium promotion on the low-temperature hydrothermal stability of a Cu/SAPO-34 NH3-SCR monolith catalyst".JOURNAL OF THE TAIWAN INSTITUTE OF CHEMICAL ENGINEERS 80(2017):805-812.