| 钾改性铁-钼碳化物CO加氢合成低碳混合醇的研究 |
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| 引用本文： | 王宁,房克功,林明桂,姜东,李德宝,孙予罕.钾改性铁-钼碳化物CO加氢合成低碳混合醇的研究[J].天然气化工,2010,35(2). |
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| 作者姓名： | 王宁 房克功 林明桂 姜东 李德宝 孙予罕 |
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| 作者单位： | 1. 中国科学院山西煤炭化学研究所煤转化国家重点实验室,山西,太原,030001;中国科学院研究生院,北京,100039
2. 中国科学院山西煤炭化学研究所煤转化国家重点实验室,山西,太原,030001 |
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| 基金项目： | 国家自然科学基金重大项目，Shell合成醇项目 |
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| 摘 要： | 使用程序升温反应法制备了一系列K改性的铁-钼碳化物催化剂,用XRD、SEM及XPS进行了表征,并对其CO加氢合成低碳混合醇性能进行了考察。结果表明,K改性的铁-钼碳化物催化剂,其产物中具有较高的低碳混合醇的选择性。K助剂与碳化物主体之间的电子作用导致其CO加氢产物选择性发生显著变化,这可能与该催化剂表面"K-Fe-Mo-C"新相的生成有关。XPS表征显示,在该催化剂中存在的Mo4+对应于醇的生成,而Mo2+则对应于烃类的生成。另外,对该催化剂CO加氢的温度效应也进行了考察。
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| 关 键 词： | K改性 β-碳化钼 碳化铁 CO加氢 低碳醇合成 |
Higher alcohols synthesis from syngas over K-promoted Fe-Mo carbide catalyst |
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| WANG Sing,FANG Ke-gong,LIN Ming-gui,JIANG Dong,LI De-bao,SUN Yu-han.Higher alcohols synthesis from syngas over K-promoted Fe-Mo carbide catalyst[J].Natural Gas Chemical Industry,2010,35(2). |
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| Authors: | WANG Sing FANG Ke-gong LIN Ming-gui JIANG Dong LI De-bao SUN Yu-han |
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| Affiliation: | WANG Ning1,2,FANG Ke-gong1,LIN Ming-gui1,JIANG Dong1,LI De-bao1,SUN Yu-han1(1.State Key Laboratory of Coal Conversion,Institute of Coal Chemistry,Chinese Academy of Sciences,Taiyuan 030001,China,2.Graduate School of the Chinese Academy of Sciences,Beijing 100039,China) |
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| Abstract: | A series of K promoted Fe-Mo molybdenum carbide catalysts were prepared by temperature-programmed-reaction method,and characterized by the XRD,SEM and XPS.Catalytic performances of the catalysts for higher alcohols synthesis from syn-gas were investigated.The results indicated that K promoted Fe-Mo molybdenum carbide was a potential catalyst for higher alcohols synthesis due to its high selectivity which was attributed to the formation of new K-Fe-Mo-C species on catalyst surface.XPS char-acterization sugge... |
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| Keywords: | K-promotion Fe-Mo carbide carbon monoxide hydrogenation higher alcohols synthesis |
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