能源化学(英文版)

能源化学(英文) ›› 2016, Vol. 25 ›› Issue (6): 895-906.DOI: 10.1016/j.jechem.2016.09.014

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Cobalt-copper based catalysts for higher terminal alcohols synthesis via Fischer-Tropsch reaction

Yizhi Xiang, Norbert Kruse   

  1. Voiland School of Chemical Engineering and Bioengineering, Washington State University, Pullman, Washington 99164, USA
  • 收稿日期:2016-08-06 修回日期:2016-09-13 出版日期:2016-11-15 发布日期:2016-10-05
  • 通讯作者: Norbert Kruse
  • 基金资助:

    This work was supported by the National Science Foundation under contract No.CBET-1438227.

Cobalt-copper based catalysts for higher terminal alcohols synthesis via Fischer-Tropsch reaction

Yizhi Xiang, Norbert Kruse   

  1. Voiland School of Chemical Engineering and Bioengineering, Washington State University, Pullman, Washington 99164, USA
  • Received:2016-08-06 Revised:2016-09-13 Online:2016-11-15 Published:2016-10-05
  • Contact: Norbert Kruse
  • Supported by:

    This work was supported by the National Science Foundation under contract No.CBET-1438227.

摘要： The production of higher terminal alcohols through CO hydrogenation according to the Fischer-Tropsch (F-T) process has been a topic of interest since the Institut Français du Pétrole (IFP) demonstrated shortchain C1-C6 mixed alcohols production over cobalt-copper based catalysts. A number of catalyst formulations were screened for their suitability at that time. In particular, the addition of Cr, Zn, Al, Mn and V to CoCu was investigated. In a number of patents, it was shown that catalyst preparation is crucial in these catalyst formulations and that high alcohols selectivity can only be achieved by carefully respecting the procedures and recipes. This short critical review highlights recent developments in CoCu-based catalysts for higher terminal alcohols synthesis via F-T synthesis. Special attention will be given to catalyst preparation which according to developments in our group is based on oxalate precipitation. This way we show that the close association of Co and Cu on the one hand and promoter/dispersant on the other are of utmost importance to ensure high performance of the catalysts. We shall concentrate on "CoCuMn", "CoCuMo" and "CoCuNb" catalyst formulations, all prepared via oxalate precipitation and combined with "entrainment techniques" if necessary, and show high total alcohols selectivity can be obtained with tunable Anderson-Schulz-Flory chain-lengthening probability. Either long-chain C8-C14 terminal alcohols as feedstock for plasticizers, lubricants and detergents, or short-chain C2-C5 alcohols as "alkanol" fuels or fuel additives can be formed this way.

关键词: Higher terminal alcohols, Fischer-Tropsch, Cobalt-copper, Oxalate, Promoter

Abstract: The production of higher terminal alcohols through CO hydrogenation according to the Fischer-Tropsch (F-T) process has been a topic of interest since the Institut Français du Pétrole (IFP) demonstrated shortchain C1-C6 mixed alcohols production over cobalt-copper based catalysts. A number of catalyst formulations were screened for their suitability at that time. In particular, the addition of Cr, Zn, Al, Mn and V to CoCu was investigated. In a number of patents, it was shown that catalyst preparation is crucial in these catalyst formulations and that high alcohols selectivity can only be achieved by carefully respecting the procedures and recipes. This short critical review highlights recent developments in CoCu-based catalysts for higher terminal alcohols synthesis via F-T synthesis. Special attention will be given to catalyst preparation which according to developments in our group is based on oxalate precipitation. This way we show that the close association of Co and Cu on the one hand and promoter/dispersant on the other are of utmost importance to ensure high performance of the catalysts. We shall concentrate on "CoCuMn", "CoCuMo" and "CoCuNb" catalyst formulations, all prepared via oxalate precipitation and combined with "entrainment techniques" if necessary, and show high total alcohols selectivity can be obtained with tunable Anderson-Schulz-Flory chain-lengthening probability. Either long-chain C8-C14 terminal alcohols as feedstock for plasticizers, lubricants and detergents, or short-chain C2-C5 alcohols as "alkanol" fuels or fuel additives can be formed this way.

Key words: Higher terminal alcohols, Fischer-Tropsch, Cobalt-copper, Oxalate, Promoter