Catalytic performance of Fe modified K/MO2C catalyst for CO hydrogenation |
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Authors: | Minglin Xiang Dudu Wu Juan Zou Debao Li Yuhan Sun Xichun She |
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Institution: | aHunan Changling Petrochemical S&T Developing Co. Ltd., Yueyang 414012, Hunan, China;bSchool of Pharmacy, Guangdong Medical College, Dongguan 523808, Guangdong, China;cState Key Laboratory of Coal Conversion, Shanxi Institute of Coal Chemistry, Chinese Academy of Sciences, Taiyuan 030001, Shanxi, China |
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Abstract: | Fe modified and un-modified K/M02C were prepared and investigated as catalysts for CO hydrogenation reaction. Compared with K/MO2C catalyst, the addition of Fe increased the production of alcohols, especially the C2+OH. Meanwhile, considerable amounts of C5+ hydrocarbons and C=2-=4 were formed, whereas methane selectivity greatly decreased. Also, the activity and selectivity of the catalyst were readily affected by the reaction pressure and temperature employed. According to the XPS results, Mo4+ might be responsible for the production of alcohols, whereas the low valence state of Mo species such as Mo° and/or Mo2+ might be account for the high activity and selectivity toward hydrocarbons. |
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Keywords: | K/Mo2C Fe promoter CO hydrogenation |
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