Chinese Journal of Catalysis ›› 2013, Vol. 34 ›› Issue (10): 1914-1925.DOI: 10.1016/S1872-2067(12)60674-3

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Aqueous-phase Fischer-Tropsch synthesis catalyzed by cobalt nanoparticles

Hang Wang, Yuan Kou   

  1. College of Chemistry and Chemical Engineering, Peking University, Beijing 100871, China
  • Received:2013-01-21 Revised:2013-08-02 Online:2013-09-29 Published:2013-09-29
  • Contact: Yuan Kou
  • Supported by:

    This work was supported by the National Basic Research Program of China (973 Program, 2013CB933100, 2013CB834603).

Abstract:

Converting syngas to hydrocarbons at much lower temperature with high efficiencies, namely aqueous-phase Fischer-Tropsch synthesis, has great potentials. In this article, we synthesized aqueous-stable cobalt nanoparticles for the reaction. The catalyst has an activity of 7.4 × 10-7 molCO gCo-1 s-1 and C5+ selectivity of 40%, which is the best result in cobalt-catalyzed aqueous-phase Fischer-Tropsch synthesis. The catalyst is recyclable after reaction. We also characterized the catalyst by transmission electron microscopy, X-ray diffraction, and in-situ infrared observation to study the catalyst reconstruction process and boron contamination.

Key words: Aqueous-phase Fischer-Tropsch synthesis, Cobalt nanoparticle, Boron contamination, In-situ infrared spectroscopy