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Alternative TitleRelationship between Iron Phase and Activity of Iron-Based Fischer-Tropsch Synthesis Catalyst
Ding Mingyue (定明月); Yang Yong; Xiang Hongwei; Li Yongwang
Contribution Rank[Ding Mingyue (定明月)] Chinese Acad Sci, Key Lab Renewable Energy & Gas Hydrate, Guangzhou Inst Energy Convers, Guangzhou 510640, Guangdong, Peoples R China; [Ding Mingyue (定明月); Yang Yong; Xiang Hongwei; Li Yongwang] Chinese Acad Sci, State Key Lab Coal Convers, Inst Coal Chem, Taiyuan 030001, Shanxi, Peoples R China
Corresponding AuthorDing, MY (reprint author), Chinese Acad Sci, Key Lab Renewable Energy & Gas Hydrate, Guangzhou Inst Energy Convers, Guangzhou 510640, Guangdong, Peoples R China.
Other AbstractA typical Fe-based catalyst for Fischer-Tropsch synthesis (FTS) was prepared by a combination method of continuous co-precipitation and spray-drying technology The study was undertaken to investigate the iron phase transformation under different pretreatment conditions and the influence of phase structure on FTS activity of the catalyst in a stirred tank slurry reactor N(2) adsorption-desorption, X-ray diffraction, and Mossbauer effect spectroscopy were used to characterize the catalyst It was found that alpha-Fe(2)O(3) in the fresh catalyst was reduced first to Fe(3)O(4) and then converted to iron carbides (Fe,C) in the syngas atmosphere Increasing the reduction space velocity promoted the reduction and carburization of the catalyst Higher reduction pressure facilitated the reduction of alpha-Fe(2)O(3) to Fe(3)O(4) but suppressed the carburization of magnetite During FTS the catalytic activity decreased gradually with increasing magnetite content and decreasing iron carbide content.
KeywordFischer-tropsch Synthesis Iron-based Catalyst Syngas Iron Oxide Iron Carbide Manganese Catalyst Potassium Transformation Performance Promoter 费托合成 铁基催化剂 合成气 氧化铁 碳化铁
Subject AreaChemistry ; Engineering
Indexed BySCI ; CSCD
Funding Organization国家自然科学基金(20625620); 国家重点基础研究发展计划(973计划 2007CB210207)
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GB/T 7714
Ding Mingyue (定明月),Yang Yong,Xiang Hongwei,等. 费托合成Fe基催化剂中铁物相与活性的关系[J]. CHINESE JOURNAL OF CATALYSIS,2010,31(9):6,1145-1150.
APA Ding Mingyue ,Yang Yong,Xiang Hongwei,&Li Yongwang.(2010).费托合成Fe基催化剂中铁物相与活性的关系.CHINESE JOURNAL OF CATALYSIS,31(9),6,1145-1150.
MLA Ding Mingyue ,et al."费托合成Fe基催化剂中铁物相与活性的关系".CHINESE JOURNAL OF CATALYSIS 31.9(2010):6,1145-1150.
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