caa a22 4500 463252683 CHVBK 20180405153345.0 cr unu---uuuuu 170326e20070401xx s 000 0 eng 10.1007/s10562-007-9060-6 doi (NATIONALLICENCE)springer-10.1007/s10562-007-9060-6 Effect of manganese on a potassium-promoted iron-based Fischer-Tropsch synthesis catalyst [Elektronische Daten] [Zhichao Tao, Yong Yang, Haijun Wan, Tingzhen Li, Xia An, Hongwei Xiang, Yongwang Li] The effects of manganese promoter on the reduction-carburization behavior, surface basicity, bulk phase structure and their correlation with Fischer-Tropsch synthesis (FTS) performances have been emphatically studied over a series of spray-dried Fe-Mn-K catalysts with a wide range of Mn incorporation amount. The catalysts were characterized by means of H2 and CO temperature-programmed reduction (TPR), CO2 temperature-programmed desorption (TPD), Mössbauer spectroscopy etc.. The results indicated that small amount of Mn promoter can promote the reduction of the catalyst in H2. However, FeO phase formed during reduction is stabilized by MnO phase with the further increase of Mn content, making FeO phase difficult to be reduced in H2. The addition of Mn promoter can stabilize the Fe2+ and Fe3+ ions, and suppresses the reduction and carburization of the catalyst in syngas and CO. Mn promoter can also enhance the amount of the basic sites and weaken the strength of the basic sites, which possibly come from the reason that the Mn-K interaction is strengthened with the addition of Mn promoter. The change of surface basicity can modify the selectivity of hydrocarbons and olefins, and the change of bulk structure phase derived from the addition of Mn promoter will affect the catalyst activity and run stability. The synergetic effects of the two main factors result in an optimized amount of Mn promoter for the highest catalyst activity and heavy hydrocarbon selectivity in slurry FTS reaction of Fe-Mn-K catalysts. Springer Science+Business Media, LLC, 2007 Fischer-Tropsch synthesis nationallicence iron-manganese catalyst nationallicence manganese promoter nationallicence Tao Zhichao State Key Laboratory of Coal Conversion, Institute of Coal Chemistry, Chinese Academy of Sciences, 030001, Taiyuan, People's Republic of China aut Yang Yong State Key Laboratory of Coal Conversion, Institute of Coal Chemistry, Chinese Academy of Sciences, 030001, Taiyuan, People's Republic of China aut Wan Haijun State Key Laboratory of Coal Conversion, Institute of Coal Chemistry, Chinese Academy of Sciences, 030001, Taiyuan, People's Republic of China aut Li Tingzhen State Key Laboratory of Coal Conversion, Institute of Coal Chemistry, Chinese Academy of Sciences, 030001, Taiyuan, People's Republic of China aut An Xia State Key Laboratory of Coal Conversion, Institute of Coal Chemistry, Chinese Academy of Sciences, 030001, Taiyuan, People's Republic of China aut Xiang Hongwei State Key Laboratory of Coal Conversion, Institute of Coal Chemistry, Chinese Academy of Sciences, 030001, Taiyuan, People's Republic of China aut Li Yongwang State Key Laboratory of Coal Conversion, Institute of Coal Chemistry, Chinese Academy of Sciences, 030001, Taiyuan, People's Republic of China aut Catalysis Letters Kluwer Academic Publishers-Plenum Publishers; http://www.springer-ny.com 114/3-4(2007-04-01), 161-168 1011-372X 114:3-4<161 2007 114 10562 https://doi.org/10.1007/s10562-007-9060-6 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s10562-007-9060-6 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Tao Zhichao State Key Laboratory of Coal Conversion, Institute of Coal Chemistry, Chinese Academy of Sciences, 030001, Taiyuan, People's Republic of China aut NATIONALLICENCE 700 1- Yang Yong State Key Laboratory of Coal Conversion, Institute of Coal Chemistry, Chinese Academy of Sciences, 030001, Taiyuan, People's Republic of China aut NATIONALLICENCE 700 1- Wan Haijun State Key Laboratory of Coal Conversion, Institute of Coal Chemistry, Chinese Academy of Sciences, 030001, Taiyuan, People's Republic of China aut NATIONALLICENCE 700 1- Li Tingzhen State Key Laboratory of Coal Conversion, Institute of Coal Chemistry, Chinese Academy of Sciences, 030001, Taiyuan, People's Republic of China aut NATIONALLICENCE 700 1- An Xia State Key Laboratory of Coal Conversion, Institute of Coal Chemistry, Chinese Academy of Sciences, 030001, Taiyuan, People's Republic of China aut NATIONALLICENCE 700 1- Xiang Hongwei State Key Laboratory of Coal Conversion, Institute of Coal Chemistry, Chinese Academy of Sciences, 030001, Taiyuan, People's Republic of China aut NATIONALLICENCE 700 1- Li Yongwang State Key Laboratory of Coal Conversion, Institute of Coal Chemistry, Chinese Academy of Sciences, 030001, Taiyuan, People's Republic of China aut NATIONALLICENCE 773 0- Catalysis Letters Kluwer Academic Publishers-Plenum Publishers; http://www.springer-ny.com 114/3-4(2007-04-01), 161-168 1011-372X 114:3-4<161 2007 114 10562 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer