Effects of the Different Supports on the Activity and Selectivity of Iron-Cobalt Bimetallic Catalyst for Fischer-Tropsch Synthesis

被引：4

作者：

Xiangdong Ma Qiwen Sun Fahai Cao Weiyong Ying Dingye Fang State key Laboratory of Chemical Engineering School of Chemical Engineering East China University of Science and Technology Shanghai China ^{[200237
]}

Shanghai Yankuang Energy RD Co Ltd Shanghai China ^{[201203
]}

机构：

来源：

Journal of Natural Gas Chemistry | 2006年 / 04期

关键词：

Fischer-Tropsch synthesis; bimetallic catalyst; iron; cobalt; support; silica; alumina; active carbon; syngas;

D O I：

暂无

中图分类号：

O643.32 [催化反应];

学科分类号：

081705 ;

摘要：

<正>Silica, alumina, and activated carbon supported iron-cobalt catalysts were prepared by incipient wetness impregnation. These catalysts have been characterized by BET, X-ray diffraction (XRD), and temperature-programmed reduction (TPR). Activity and selectivity of iron-cobalt supported on different carriers for CO hydrogenation were studied under the conditions of 1.5 MPa, 493 K, 630 h-1, and H2/CO ratio of 1.6. The results indicate that the activity, C4 olefin/(C4 olefin+C4 paraffin) ratio, and C5 olefin/(C5 olefin+C5 paraffin) decrease in the order of Fe-Co/SiO2, Fe-Co/AC1, Fe-Co/Al2O3 and Fe-Co/AC2. The activity of Fe-Co/SiO2 reached a maximum. The results of TPR show that the Fe-Co/SiO2 catalyst is to some extent different. XRD patterns show that the Fe-Co/SiO2 catalyst differs significantly from the others; it has two diffraction peaks. The active spinel phase is correlated with the supports.

引用

页码：335 / 339

页数：5

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