caa a22 4500 44538901X CHVBK 20180317143040.0 cr unu---uuuuu 170323e20110401xx s 000 0 eng 10.1007/s11144-010-0275-y doi (NATIONALLICENCE)springer-10.1007/s11144-010-0275-y Carbon modified Fe-Mn-K catalyst for the synthesis of light olefins from CO hydrogenation [Elektronische Daten] [Jianli Zhang, Subing Fan, Tiansheng Zhao, Wenhuai Li, Yuhan Sun] A novel carbon modified Fe-Mn-K catalyst for light olefin synthesis from CO hydrogenation was prepared by the sol-gel method. The effect of carbon contents on the structure and performance of the catalysts was investigated. With the incorporation of carbon, the catalysts showed much different morphology from that prepared by co-precipitation. At the carbon contents between 0.23 and 6.66 wt%, the catalyst particles were around 10nm while the carbon phase was amorphous. The activity test results indicated that the catalysts (Fe/Mn/K molar ratio=60/20/1) with carbon modification showed high conversion of CO and selectivity to light olefins with low CH4 selectivity. At the carbon content of 2.43 wt%, the total C2-C4 content in all hydrocarbons and O/P (olefin/paraffin) in the C2-C4 fraction was 49 wt% and 4.89, respectively. Furthermore, when the K content in the catalyst was reduced by half, the C2-C4 olefin yield raised from 60 to 71g/Nm3 syngas. The formation of carbon provided a more hydrophobic surface, which inhibited the water gas shift reaction (WGSR) and caused a decrease in CO2 selectivity. The dispersion of carbon favored the formation and stabilization of small particles, and promoted the production of light olefins via suppressing the chain propagation. Akadémiai Kiadó, Budapest, Hungary, 2011 Fe-Mn-K catalyst nationallicence Carbon incorporation nationallicence CO hydrogenation nationallicence Light olefins nationallicence Zhang Jianli Key Laboratory of Energy Resources and Chemical Engineering of Ningxia, Ministry-Province Co-Cultivated State Key Laboratory Base, Ningxia University, 750021, Yinchuan, China aut Fan Subing Key Laboratory of Energy Resources and Chemical Engineering of Ningxia, Ministry-Province Co-Cultivated State Key Laboratory Base, Ningxia University, 750021, Yinchuan, China aut Zhao Tiansheng Key Laboratory of Energy Resources and Chemical Engineering of Ningxia, Ministry-Province Co-Cultivated State Key Laboratory Base, Ningxia University, 750021, Yinchuan, China aut Li Wenhuai State Key Laboratory of Coal Conversion, Institute of Coal Chemistry, Chinese Academy of Sciences, 030001, Taiyuan, Shanxi, China aut Sun Yuhan State Key Laboratory of Coal Conversion, Institute of Coal Chemistry, Chinese Academy of Sciences, 030001, Taiyuan, Shanxi, China aut Reaction Kinetics, Mechanisms and Catalysis Springer Netherlands 102/2(2011-04-01), 437-445 1878-5190 102:2<437 2011 102 11144 https://doi.org/10.1007/s11144-010-0275-y text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s11144-010-0275-y text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Zhang Jianli Key Laboratory of Energy Resources and Chemical Engineering of Ningxia, Ministry-Province Co-Cultivated State Key Laboratory Base, Ningxia University, 750021, Yinchuan, China aut NATIONALLICENCE 700 1- Fan Subing Key Laboratory of Energy Resources and Chemical Engineering of Ningxia, Ministry-Province Co-Cultivated State Key Laboratory Base, Ningxia University, 750021, Yinchuan, China aut NATIONALLICENCE 700 1- Zhao Tiansheng Key Laboratory of Energy Resources and Chemical Engineering of Ningxia, Ministry-Province Co-Cultivated State Key Laboratory Base, Ningxia University, 750021, Yinchuan, China aut NATIONALLICENCE 700 1- Li Wenhuai State Key Laboratory of Coal Conversion, Institute of Coal Chemistry, Chinese Academy of Sciences, 030001, Taiyuan, Shanxi, China aut NATIONALLICENCE 700 1- Sun Yuhan State Key Laboratory of Coal Conversion, Institute of Coal Chemistry, Chinese Academy of Sciences, 030001, Taiyuan, Shanxi, China aut NATIONALLICENCE 773 0- Reaction Kinetics, Mechanisms and Catalysis Springer Netherlands 102/2(2011-04-01), 437-445 1878-5190 102:2<437 2011 102 11144 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer