Iron carbide promoted K/β-Mo2C for higher alcohols synthesis

被引：25

作者：

Wang, Ning ^{[1
,2
]}

Fang, Kegong ^{[1
]}

Jiang, Dong ^{[1
]}

Li, Debao ^{[1
]}

Sun, Yuhan ^{[1
]}

机构：

[1] Chinese Acad Sci, State Key Lab Coal Convers, Shanxi Inst Coal Chem, Taiyuan 030001, Shanxi, Peoples R China

[2] Chinese Acad Sci, Grad Univ, Beijing 100039, Peoples R China

来源：

CATALYSIS TODAY | 2010年 / 158卷 / 3-4期

基金：

中国国家自然科学基金;

关键词：

Iron carbide modified; K/beta-Mo(2)C; Higher alcohols synthesis; Syngas; FISCHER-TROPSCH SYNTHESIS; CARBON-MONOXIDE HYDROGENATION; SYNTHESIS GAS; MIXED ALCOHOLS; SYNTHESIS CATALYSTS; MOLYBDENUM; SPECTROSCOPY; CONVERSION; REDUCTION; SYNGAS;

D O I：

10.1016/j.cattod.2010.03.079

中图分类号：

O69 [应用化学];

学科分类号：

081704 ;

摘要：

Iron carbide promoted K/beta-Mo(2)C catalysts were prepared and tested for higher alcohols synthesis. The results revealed that beta-Mo(2)C produced mainly hydrocarbons, but the addition of potassium resulted in a remarkable selectivity shift from hydrocarbons to alcohols and then a higher selectivity to C(2)(+)OH over beta-Mo(2)C. Moreover, it was found that iron carbide further enhanced the selectivity of higher alcohols, showing the optimum at 1/6 of Fe/Mo molar ratio. The corresponding characterization suggested that there might be a synergistic effect of iron carbide and K/beta-Mo(2)C, i.e. the formation of "K-Fe-Mo-C" species which favored the alcohols synthesis. (C) 2010 Elsevier B.V. All rights reserved.

引用

页码：241 / 245

页数：5

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