CAS OpenIR
Destructive Influence of Cement Dust on the Structure and DeNO(x) Performance of V-Based SCR Catalyst
Wang, Chao; Li, Changming; Li, Yunjia; Lin Huangfu; Liu, Zhouen; Gao, Shiqiu; Yu, Jian
2019-10-30
Source PublicationINDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
ISSN0888-5885
Volume58Issue:43Pages:19847-19854
AbstractTo investigate the poisoning effects of the cement dust, the commercial V-based catalyst was directly mixed and aged with the real cement kiln dust. It was found that the introduction of cement dust led to the serious deactivation of catalysts, especially for the aged samples above 300 degrees C. The multiple characterization results (X-ray diffraction, Raman spectroscopy, X-ray photoelectron spectroscopy, NH3-temperature-programmed desorption, and H-2-temperature-programmed reduction) revealed that the alkaline/alkaline earth metal elements (mainly Ca) can react with the active components through solid phase reaction to form inactive surface A(x)V(1-x)O(4) (A=Ca, K, Na, etc.), solid solutions, and the Scheelite phase, bringing about the reduction of the surface acid sites and the passivation of the redox cycle of V5+/V4+. These results implied that the inert solid solutions may form on the industrial flue gas condition, and change the structure and properties of catalytic sites, which may result in the poisoning and inactivation of the selective catalytic reduction catalyst by cement dust.
DOI10.1021/acs.iecr.9b04268
Language英语
WOS KeywordV2O5-WO3/TIO2 CATALYSTS ; ACTIVE-SITES ; FLUE-GAS ; REDUCTION ; NO ; NH3 ; VANADIA ; DEACTIVATION ; NH3-SCR ; OXIDES
Funding ProjectInternational Science and Technology Cooperation Program of China[2016YFE0128300] ; National Natural Science Foundation of China[21601192] ; National Natural Science Foundation of China[21878310] ; State Key Laboratory of Multiphase Complex Systems[MPCS-2019-0-03]
WOS Research AreaEngineering
WOS SubjectEngineering, Chemical
Funding OrganizationInternational Science and Technology Cooperation Program of China ; National Natural Science Foundation of China ; State Key Laboratory of Multiphase Complex Systems
WOS IDWOS:000493867400014
PublisherAMER CHEMICAL SOC
Citation statistics
Cited Times:5[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.ipe.ac.cn/handle/122111/39024
Collection中国科学院过程工程研究所
Corresponding AuthorYu, Jian
AffiliationChinese Acad Sci, Inst Proc Engn, State Key Lab Multiphase Complex Syst, Beijing 100190, Peoples R China
Recommended Citation
GB/T 7714
Wang, Chao,Li, Changming,Li, Yunjia,et al. Destructive Influence of Cement Dust on the Structure and DeNO(x) Performance of V-Based SCR Catalyst[J]. INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH,2019,58(43):19847-19854.
APA Wang, Chao.,Li, Changming.,Li, Yunjia.,Lin Huangfu.,Liu, Zhouen.,...&Yu, Jian.(2019).Destructive Influence of Cement Dust on the Structure and DeNO(x) Performance of V-Based SCR Catalyst.INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH,58(43),19847-19854.
MLA Wang, Chao,et al."Destructive Influence of Cement Dust on the Structure and DeNO(x) Performance of V-Based SCR Catalyst".INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH 58.43(2019):19847-19854.
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