Pilot-Scale Test of a V2O5-WO3/TiO2-Coated Type of Honeycomb DeNO(x) Catalyst and Its Deactivation Mechanism

doi:10.1021/acs.iecr.8b04827

	Pilot-Scale Test of a V2O5-WO3/TiO2-Coated Type of Honeycomb DeNO(x) Catalyst and Its Deactivation Mechanism
	Zhang, Yu-sheng 1,2; Li, Changming 1; Wang, Chao 1,2; Yu, Jian 1; Xu, Guangwen 1,3; Zhang, Zhan-guo 4; Yang, Yunquan 2
刊名	INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
	2019-01-16
卷号	58 期号:2 页码:828-835
ISSN号	0888-5885
DOI	10.1021/acs.iecr.8b04827
英文摘要	A V2O5-WO3/TiO2-coated type of honeycomb catalyst was tested in a pilot-scale plant for DeNO(x) of the flue gas from a coal-fired glass kiln at temperatures of 250-310 degrees C for a cumulative period of 2500 h. The catalyst exhibited a two-stage deactivation feature: a gradual activity reduction in the first 1100 h followed by an accelerated deactivation in the remaining period. SEM-EDS analysis of the spent samples revealed that cumulation of Na2SO4 contained in the flue gas on the surface and in the subsurface layer of the coated active component is the main cause of deactivation which leads to the decline of mass transfer of NH3 from the gas phase to catalyst. Furthermore, the NH3-TPD patterns suggested that Na+ worked to lower the weak Bronsted acidity of the catalyst, whereas SO42- led to competitive adsorption of NH3 to formation of stable ammonium sulfate species below 300 degrees C.
资助项目	International S&T Cooperation Program of China[2016YFE0128300] ; National Natural Science Foundation of China[21601192]
WOS关键词	SCR CATALYST ; ALKALI-METALS ; FLUE-GAS ; REDUCTION ; PERFORMANCE ; NH3 ; REGENERATION ; DENITRATION ; RESISTANCE ; ACIDITY
WOS研究方向	Engineering
语种	英语
出版者	AMER CHEMICAL SOC
WOS记录号	WOS:000456351200036
资助机构	International S&T Cooperation Program of China ; National Natural Science Foundation of China
内容类型	期刊论文
源URL	[http://ir.ipe.ac.cn/handle/122111/27731]
专题	中国科学院过程工程研究所
通讯作者	Yu, Jian
作者单位	1.Chinese Acad Sci, Inst Proc Engn, State Key Lab Multiphase Complex Syst, Beijing 100190, Peoples R China 2.Xiangtan Univ, Sch Chem Engn, Xiangtan 411105, Hunan, Peoples R China 3.Shenyang Univ Chem Technol, Inst Ind Chem & Energy Technol, Shenyang 110142, Liaoning, Peoples R China 4.Natl Inst Adv Ind Sci & Technol, 16-1 Onogawa, Tsukuba, Ibaraki 3058569, Japan
推荐引用方式 GB/T 7714	Zhang, Yu-sheng,Li, Changming,Wang, Chao,et al. Pilot-Scale Test of a V2O5-WO3/TiO2-Coated Type of Honeycomb DeNO(x) Catalyst and Its Deactivation Mechanism[J]. INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH,2019,58(2):828-835.
APA	Zhang, Yu-sheng.,Li, Changming.,Wang, Chao.,Yu, Jian.,Xu, Guangwen.,...&Yang, Yunquan.(2019).Pilot-Scale Test of a V2O5-WO3/TiO2-Coated Type of Honeycomb DeNO(x) Catalyst and Its Deactivation Mechanism.INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH,58(2),828-835.
MLA	Zhang, Yu-sheng,et al."Pilot-Scale Test of a V2O5-WO3/TiO2-Coated Type of Honeycomb DeNO(x) Catalyst and Its Deactivation Mechanism".INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH 58.2(2019):828-835.