CAS OpenIR
Effect of Al2O3 doping on the structure and performance of an Al2O3/Fe2O3 catalyst for mercury oxidation
Liu, Ruihui1,3,4; Zhu, Tingyu2; Tong, Li5; Xu, Wenqing2
2020-04-01
Source PublicationJOURNAL OF ENVIRONMENTAL SCIENCES
ISSN1001-0742
Volume90Pages:138-145
AbstractIn this study, the thermal stability of a Fe2O3 catalyst for mercury oxidation was significantly improved by doping with Al2O3. After 1 hr, the catalyst doped with 10 wt.% Al2O3 still exhibited a mercury conversion efficiency of 70.9%, while the undoped sample even lost its catalytic activity. Doping with Al2O3 retarded the collapse of the catalyst mesoporous structure during high-temperature calcination, and the doped samples maintained a higher specific surface area, smaller pore size, and narrower pore size distribution. Transmission electron microscope images revealed that after calcination at 350 degrees C, the average size of the catalyst grains in Fe2O3 was 23.4 nm; however, the corresponding values for 1%Al2O3/Fe2O3, 3%Al2O3/Fe2O3, and 10%Al2O3/Fe2O3 were only 13.3, 7.1, and 4.7 nm, respectively. Results obtained from X-ray diffraction and thermogravimetry coupled with differential scanning calorimetry confirmed that doping with Al2O3 also retards the crystallization of the catalysts at high temperature, constraining catalyst grains to a smaller size. (C) 2019 The Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences. Published by Elsevier B.V.
KeywordMercury Catalytic oxidation Fe2O3 Al2O3 Thermal stability
DOI10.1016/j.jes.2019.11.003
Language英语
WOS KeywordPHASE ELEMENTAL MERCURY ; MODIFIED SCR CATALYST ; FLUE-GAS ; MANGANESE OXIDES ; HG-0 OXIDATION ; METAL-OXIDES ; REMOVAL ; FE2O3 ; ADSORPTION ; MN
Funding ProjectNational Key Research and Development Program of China[2017YFC0210501] ; National Natural Science Foundation of China[21607009] ; National Engineering Laboratory for Flue Gas Pollutants Control Technology and Equipment[NEL-KF-201902]
WOS Research AreaEnvironmental Sciences & Ecology
WOS SubjectEnvironmental Sciences
Funding OrganizationNational Key Research and Development Program of China ; National Natural Science Foundation of China ; National Engineering Laboratory for Flue Gas Pollutants Control Technology and Equipment
WOS IDWOS:000513920600014
PublisherSCIENCE PRESS
Citation statistics
Cited Times:2[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.ipe.ac.cn/handle/122111/39630
Collection中国科学院过程工程研究所
Corresponding AuthorXu, Wenqing
Affiliation1.Northeastern Univ, Sch Resources & Civil Engn, Shenyang 110819, Peoples R China
2.Chinese Acad Sci, Inst Proc Engn, Res Ctr Proc Pollut Control, Natl Engn Lab Hydromet Cleaner Prod Technol, Beijing 100190, Peoples R China
3.Northeastern Univ Qinhuangdao, Sch Resources & Mat, Qinhuangdao 066004, Hebei, Peoples R China
4.Key Lab Dielect & Electrolyte Funct Mat Hebei Pro, Qinhuangdao 066004, Hebei, Peoples R China
5.Beijing Municipal Inst Lab Protect, Dept Air Pollut Control, Beijing 100054, Peoples R China
Recommended Citation
GB/T 7714
Liu, Ruihui,Zhu, Tingyu,Tong, Li,et al. Effect of Al2O3 doping on the structure and performance of an Al2O3/Fe2O3 catalyst for mercury oxidation[J]. JOURNAL OF ENVIRONMENTAL SCIENCES,2020,90:138-145.
APA Liu, Ruihui,Zhu, Tingyu,Tong, Li,&Xu, Wenqing.(2020).Effect of Al2O3 doping on the structure and performance of an Al2O3/Fe2O3 catalyst for mercury oxidation.JOURNAL OF ENVIRONMENTAL SCIENCES,90,138-145.
MLA Liu, Ruihui,et al."Effect of Al2O3 doping on the structure and performance of an Al2O3/Fe2O3 catalyst for mercury oxidation".JOURNAL OF ENVIRONMENTAL SCIENCES 90(2020):138-145.
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