Acta Phys. -Chim. Sin. ›› 2015, Vol. 31 ›› Issue (1): 1-10.doi: 10.3866/PKU.WHXB201411054

• REVIEW • Previous Articles     Next Articles

Role of Common Promoters in Rh-Based Catalysts for CO Hydrogenation to C2-Oxygenates

CHEN Wei-Miao1, DING Yun-Jie1,2, XUE Fei1,3, SONG Xian-Gen1   

  1. 1. Dalian National Laboratory for Clean Energy, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, Liaoning Province, P. R. China;
    2. State Key Laboratory of Catalysis, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, Liaoning Province, P. R. China;
    3. University of Chinese Academy of Sciences, Beijing 100049, P. R. China
  • Received:2014-09-30 Revised:2014-11-04 Published:2014-12-25
  • Contact: DING Yun-Jie E-mail:dyj@dicp.ac.cn

Abstract:

There is great significance to produce C2-oxygenates such as ethanol via syngas fromcoal, natural gas or biomass frompractical and academy of view; and supported Rh-based catalysts are the most effective for this conversion. The choice of promoter is critical for obtaining high-performance catalysts, of which Fe, Mn, and Li are most widely used. The effects of promoters have been studied extensively and comprehensively, but their roles remain the subject of much debate. We review the progress on the promotion nature of Fe, Mn, and Li. The roles of these promoters depend on the catalyst systemand preparation procedures empolyed, which affect directly the interaction between Rh and promoter(s). This interaction determines the displayed structures and properties of the promoters, which behaves different effects on the elemental steps of CO hydrogenation reaction. This review is expected to deeply aid our understanding of the effects of these promoters.

Key words: Rhodium, Syngas, C2-oxygenates, Iron, Manganese, Lithium, Promoter role, Co hydrogenation

MSC2000: 

  • O643