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Distribution of SO2 Oxidation Products in the SCR of NO over V2O5/TiO2 Catalysts at Different Temperatures
Li, Yuran1; Xiong, Jin1,3; Lin, Yuting1; Guo, Junxiang1; Zhu, Tingyu1,2
2020-03-18
Source PublicationINDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
ISSN0888-5885
Volume59Issue:11Pages:5177-5185
AbstractSO2 will form SO3 in the selective catalytic reduction (SCR) of NO over a V2O5/TiO2 catalyst. To reduce the total amount of SO2 oxidation products, the distribution of the sulfur-containing species at 180-400 degrees C was investigated. The results indicate that the amount of ammonium sulfate decreases, while the amount of gaseous SO3 increases with increasing temperature. The formation temperature for the small amount of oxidation products is located at 250-270 degrees C. Based on the adsorption and temperature-programmed desorption (TPD) tests, the role of O-2 in the migration of sulfur-containing species is revealed. The main pathway of SO2 oxidation is that SO2 is oxidized to form adsorbed SO3 and then desorbs to generate gaseous SO3 or reacts with NH3 to generate sulfate. There is also a little SO2 reacting with NH3 to form sulfite and then rapidly oxidized to ammonium sulfate.
DOI10.1021/acs.iecr.9b05271
Language英语
WOS KeywordAMMONIUM BISULFATE FORMATION ; SULFUR-TRIOXIDE ; SURFACE ; DECOMPOSITION ; REACTIVITY ; ADSORPTION ; REDUCTION ; MECHANISM ; DIOXIDE ; OXIDE
Funding ProjectNational Key R&D Program of China[2017YFC0210600] ; National Natural Science Foundation of China[21477131]
WOS Research AreaEngineering
WOS SubjectEngineering, Chemical
Funding OrganizationNational Key R&D Program of China ; National Natural Science Foundation of China
WOS IDWOS:000526416200031
PublisherAMER CHEMICAL SOC
Citation statistics
Cited Times:3[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.ipe.ac.cn/handle/122111/40038
Collection中国科学院过程工程研究所
Corresponding AuthorLi, Yuran; Zhu, Tingyu
Affiliation1.Chinese Acad Sci, Beijing Engn Res Ctr Proc Pollut Control, Natl Engn Lab Hydromet Cleaner Prod Technol, Inst Proc Engn, Beijing 100190, Peoples R China
2.Chinese Acad Sci, Ctr Excellence Reg Atmospher Environm, Inst Urban Environm, Beijing 100190, Peoples R China
3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
Recommended Citation
GB/T 7714
Li, Yuran,Xiong, Jin,Lin, Yuting,et al. Distribution of SO2 Oxidation Products in the SCR of NO over V2O5/TiO2 Catalysts at Different Temperatures[J]. INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH,2020,59(11):5177-5185.
APA Li, Yuran,Xiong, Jin,Lin, Yuting,Guo, Junxiang,&Zhu, Tingyu.(2020).Distribution of SO2 Oxidation Products in the SCR of NO over V2O5/TiO2 Catalysts at Different Temperatures.INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH,59(11),5177-5185.
MLA Li, Yuran,et al."Distribution of SO2 Oxidation Products in the SCR of NO over V2O5/TiO2 Catalysts at Different Temperatures".INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH 59.11(2020):5177-5185.
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