Influence of manganese promoter on co-precipitated Fe-Cu based catalysts for higher alcohols synthesis

被引：43
作者：
Ding, Mingyue [1 ]
Qiu, Minghuang [1 ]
Liu, Jianguo [1 ,2 ]
Li, Yuping [1 ]
Wang, Tiejun [1 ]
Ma, Longlong [1 ]
Wu, Chuangzhi [1 ]
机构：
[1] Chinese Acad Sci, Guangzhou Inst Energy Convers, Key Lab Renewable Energy & Gas Hydrate, Guangzhou 510640, Guangdong, Peoples R China
[2] Chinese Acad Sci, Grad Sch, Beijing 100039, Peoples R China
来源：
FUEL | 2013年 / 109卷
关键词：
Higher alcohols synthesis; Fe-Cu catalyst; Manganese promoter; Optimum conditions; FISCHER-TROPSCH SYNTHESIS; TEMPERATURE-PROGRAMMED DESORPTION; CUMNZRO2; CATALYSTS; OXIDE CATALYSTS; MIXED ALCOHOLS; IRON; SYNGAS; MN; COPPER; HYDROGENATION;
D O I：
10.1016/j.fuel.2012.06.034
中图分类号：
TE [石油、天然气工业]; TK [能源与动力工程];
学科分类号：
0807 ; 0820 ;
摘要：
Effect of manganese promoter on the microstructures of co-precipitated Fe-Cu catalysts was investigated by N-2 physisorption, X-ray diffraction (XRD), and temperature-programmed reduction/desorption of hydrogen (H-2-TPR/TPD). Higher alcohols synthesis (HAS) was performed in a fixed bed reactor. The characterization results indicated that incorporation of manganese into the Fe-Cu based catalysts facilitated the formation of Fe-Mn-O solid solution and promoted the dispersion of both the iron and copper species. In the HAS reaction, the catalytic activity of CO hydrogenation, selectivity of C-2(+) OH and hydrocarbons increased gradually with increasing Mn concentration, which may be attributed to the well dispersion of both the iron and copper surface active sites in higher manganese content. The optimum conditions for producing higher alcohols from syngas were determined as 270 degrees C and 6.0 MPa. Crown Copyright (C) 2012 Published by Elsevier Ltd. All rights reserved.
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页码：21 / 27
页数：7
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