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Impact of H-2/CO ratios on phase and performance of Mn-modified Fe-based Fischer Tropsch synthesis catalyst
Ding, Mingyue1,2; Yang, Yong2; Li, Yongwang2; Wang, Tiejun1; Ma, Longlong1; Wu, Chuangzhi1
2013-12-01
Source PublicationAPPLIED ENERGY
Volume112Pages:1241-1246
AbstractImpacts of H-2/CO ratios on both the bulky and surface compositions of an iron-manganese based catalyst were investigated by XRD, MES, N-2-physisorption, XPS and LRS. Fischer-Tropsch (F-T) synthesis performances were studied in a slurry-phase continuously stirred tank reactor. The characterization results showed that the fresh catalyst was comprised of the hematite, which was converted firstly to Fe3O4, and then carburized to iron carbides in both the bulk and surface regions under different H-2/CO ratios atmosphere. Pretreatment in lower H-2/CO ratio facilitated the formation of iron carbides on the surface of magnetite and surface carbonaceous species. During the F-T synthesis reaction, the catalyst reduced in lower H-2/CO ratio presented higher catalytic activity, which is assigned probably to the formation of more iron carbides (especially for chi-Fe5C2) on the surface of magnetite. The increase of CO partial pressure promoted the product distribution shifting towards heavy hydrocarbons. Crown Copyright (C) 2012 Published by Elsevier Ltd. All rights reserved.
SubtypeArticle
KeywordFischer-tropsch Synthesis H-2/co Ratios Iron-manganese Catalyst Carburization Reaction Carbonaceous Species
WOS HeadingsScience & Technology ; Technology
DOI10.1016/j.apenergy.2012.12.052
WOS Subject ExtendedEnergy & Fuels ; Engineering
WOS KeywordIRON-MANGANESE CATALYST ; DEACTIVATION ; REDUCTION ; MECHANISM ; PRESSURE
Indexed BySCI ; ISTP
Language英语
WOS SubjectEnergy & Fuels ; Engineering, Chemical
WOS IDWOS:000329377800135
Citation statistics
Cited Times:26[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.giec.ac.cn/handle/344007/10096
Collection中国科学院广州能源研究所
Affiliation1.Chinese Acad Sci, Guangzhou Inst Energy Convers, Key Lab Renewable Energy & Gas Hydrate, Guangzhou 510640, Peoples R China
2.Chinese Acad Sci, Inst Coal Chem, State Key Lab Coal Convers, Taiyuan 030001, Peoples R China
Recommended Citation
GB/T 7714
Ding, Mingyue,Yang, Yong,Li, Yongwang,et al. Impact of H-2/CO ratios on phase and performance of Mn-modified Fe-based Fischer Tropsch synthesis catalyst[J]. APPLIED ENERGY,2013,112:1241-1246.
APA Ding, Mingyue,Yang, Yong,Li, Yongwang,Wang, Tiejun,Ma, Longlong,&Wu, Chuangzhi.(2013).Impact of H-2/CO ratios on phase and performance of Mn-modified Fe-based Fischer Tropsch synthesis catalyst.APPLIED ENERGY,112,1241-1246.
MLA Ding, Mingyue,et al."Impact of H-2/CO ratios on phase and performance of Mn-modified Fe-based Fischer Tropsch synthesis catalyst".APPLIED ENERGY 112(2013):1241-1246.
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