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Bio-syngas Converting to Liquid Fuels over Co Modified Fe3O4-MnO2 Catalysts
Jie Wang1, Ying Xiang1, Yi-yuan Ding1, Yan-fei Xu1, Xiang-hui Kong1, Guang-yuan Ma1, Chanatip Samart2, Ming-yue Ding*1,3
1.School of Power and Mechanical Engineering, Hubei International Scienti c and Technological Co-operation Base of Sustainable Resource and Energy, Hubei Province Key Laboratory of Accountrement Technique in Fluid Machinery & Power Engineering, Wuhan University, Wuhan 430072, China;2.Department of Chemistry, Faculty of Science and Technology, Thammasat University, Rangsit Cam-pus, Klongluang, Pathumtani 12120, Thailand;3.Key Laboratory of Advanced Energy Materials Chemistry (Ministry of Education), Nankai University, Tianjin 300071, China
Abstract:
A bifunctional Co modified Fe3O4-Mn catalyst was prepared for Fischer-Tropsch synthesis (FTS). The influence of Co loading on the synergistic effect of Fe-Co as well as FTS performance over Fe1CoxMn1 catalysts was studied. Incorporation of Co species into the Fe3O4-Mn catalyst promoted the reduction of iron oxides, increasing iron active sites during FTS. Moreover, the adding of Co species enhanced the electron transfer from Fe to Co metal, which strengthened the synergistic effect of Fe-Co, improving the catalytic performance. The Fe1CoxMn1 catalyst with higher Co loading promoted further the hydrogenation ability, favoring the shifting of the product distribution towards shorter hydrocarbons. Under optimized conditions of 280 °C, 2.0 MPa and 3000 h-1, the highest yield of liquid fuels was obtained for the Fe1Co1Mn1 catalyst.
Key words:  Fischer-Tropsch, Fe3O4-Mn, Co loading, Synergistic effect
FundProject:
钴改性Fe3O4-MnO2催化转化生物质合成气制备液体燃料
王 捷1, 向 颖1, 丁毅远1, 徐艳飞1, 孔祥辉1, 马光远1, Chanatip Samart2, 定明月*1,3
1.武汉大学动力与机械学院,武汉 430072;2.泰国国立法政大学化学学院,巴吞他尼府 12120;3.南开大学先进能源材料化学教育部重点实验室,天津 300071
摘要:
本文制备了用于费托合成反应的钴改性Fe3O4-MnO2双功能催化剂,并探究了钴负载量对Fe-Co协同效应的影响以及Fe1CoxMn1催化剂的费托合成反应性能. 实验发现,在Fe3O4-Mn催化剂中加入Co可促进铁氧化物的还原、增加反应过程中铁位点的活性. 此外,Co的加入可增强Fe-Co金属间的电子转移,加强两者的协同作用,提高催化性能. Co负载较高的Fe1CoxMn1催化剂可进一步促进加氢反应能力,使产品分布向短链烃方向转移. 在280 °C、2.0 MPa和3000 h-1的最佳工况条件下,Fe1Co1Mn1催化剂的液体燃料收率最高.
关键词:  费托合成,Fe3O4-Mn,钴负载,协同效应
DOI:10.1063/1674-0068/cjcp1904086
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