催化学报

催化学报 ›› 2014, Vol. 35 ›› Issue (3): 342-350.DOI: 10.1016/S1872-2067(12)60757-8

• 研究论文 • 上一篇    下一篇

以钴羰基簇合物为前驱体制备的钴基催化剂上F-T反应性能

李雪芬a, 白凤华b, 苏海全a,b   

  1. a 内蒙古大学生命科学学院, 内蒙古呼和浩特010021;
    b 内蒙古大学化学化工学院, 内蒙古呼和浩特010021
  • 收稿日期:2013-09-02 修回日期:2013-11-22 出版日期:2014-02-26 发布日期:2014-02-26
  • 通讯作者: 苏海全
  • 基金资助:

    国家自然科学基金（21061008）；内蒙古自然科学基金重大项目（2010ZD01）.

Cobalt-based catalysts derived from cobalt carbonyl clusters for Fischer-Tropsch synthesis

Xuefen Lia, Fenghua Baib, Haiquan Sua,b   

  1. a College of Life Sciences, Inner Mongolia University, Hohhot 010021, Inner Mongolia, China;
    b School of Chemistry and Chemical Engineering, Inner Mongolia University, Hohhot 010021, Inner Mongolia, China
  • Received:2013-09-02 Revised:2013-11-22 Online:2014-02-26 Published:2014-02-26
  • Supported by:

    This work was supported by the National Natural Science Foundation of China (21061008) and the Key Grant of Inner Mongolia Natural Science Foundation (2010ZD01).

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被引次数

1

摘要：

以含羧酸配体的钴羰基簇合物Co2（CO）6HCCCOOH，Co3（CO）9CCH2COOH，Co4（CO）10HCCCOOH 为前驱体，γ-Al2O3为载体，通过浸渍法制备了一系列催化剂；同时以Co（NO3）2作为前驱体制备了参比催化剂. 对制备的催化剂进行了费托反应性能评价，并用透射电子显微镜、氨程序升温脱附和傅里叶变换红外光谱等手段对催化剂进行了表征. 结果发现，不同前驱体制备的催化剂对载体上Co的分布具有明显影响，进而影响催化剂活性. 反应结果表明，不同前驱体制备的催化剂上CO转化率及C5+选择性顺序为Co3（CO）9CCH2COOH > Co2（CO）6HCCCOOH > Co4（CO）10HCCCOOH > Co（NO3）2.

关键词: 钴羰基簇合物, 费托合成, 前驱体, 浸渍法

Abstract:

Co catalysts supported on γ-Al2O3 were prepared using Co2(CO)6HCCCOOH, Co3(CO)9CCH2COOH, and Co4(CO)10HCCCOOH as precursors. Co(NO3)2 was used as the precursor for preparing the reference catalyst. The results of Fischer-Tropsch synthesis tests and characterization by transmission electron microscopy, NH3 temperature-programmed desorption, and infrared showed that the different precursors have significant effects on the dispersion of the Co, which affect their catalytic behavior. CO conversion and C5+ selectivity over these catalysts prepared from different precursors decreased in the order Co3(CO)9CCH2COOH > Co2(CO)6HCCCOOH > Co4(CO)10HCCCOOH > Co(NO3)2.

Key words: Cobalt carbonyl cluster, Fischer-Tropsch synthesis, Precursor, Impregnation