SCI和EI收录∣中国化工学会会刊

Chin.J.Chem.Eng. ›› 2014, Vol. 22 ›› Issue (1): 28-37.DOI: 10.1016/S1004-9541(14)60029-X

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Role of La2O3 as Promoter and Support in Ni/γ-Al2O3 Catalysts for Dry Reforming of Methane

Ahmed S. Al-Fatesh, Muhammad A. Naeem, Anis H. Fakeeha, Ahmed E. Abasaeed   

  1. Chemical Engineering Department, College of Engineering, King Saud University, P.O. Box 800, Riyadh 11421, Kingdom of Saudi Arabia
  • Received:2012-11-08 Revised:2013-04-26 Online:2014-01-04 Published:2014-01-05
  • Contact: Ahmed S. Al-Fatesh

Role of La2O3 as Promoter and Support in Ni/γ-Al2O3 Catalysts for Dry Reforming of Methane

Ahmed S. Al-Fatesh, Muhammad A. Naeem, Anis H. Fakeeha, Ahmed E. Abasaeed   

  1. Chemical Engineering Department, College of Engineering, King Saud University, P.O. Box 800, Riyadh 11421, Kingdom of Saudi Arabia
  • 通讯作者: Ahmed S. Al-Fatesh

Abstract: The nature of support and type of active metal affect catalytic performance. In this work, the effect of using La2O3 as promoter and support for Ni/γ-Al2O3 catalysts in dry reforming of methane was investigated. The reforming reactions were carried out at atmospheric pressure in the temperature range of 500-700℃. The activity and stability of the catalyst, carbon formation, and syngas (H2/CO) ratio were determined. Various techniques were applied for characterization of both fresh and used catalysts. Addition of La2O3 to the catalyst matrix improved the dispersion of Ni and adsorption of CO2, thus its activity and stability enhanced.

Key words: CO2, methane reforming, Ni/&gamma, -Al2O3, La2O3, carbon deposition, H2/CO

摘要: The nature of support and type of active metal affect catalytic performance. In this work, the effect of using La2O3 as promoter and support for Ni/γ-Al2O3 catalysts in dry reforming of methane was investigated. The reforming reactions were carried out at atmospheric pressure in the temperature range of 500-700℃. The activity and stability of the catalyst, carbon formation, and syngas (H2/CO) ratio were determined. Various techniques were applied for characterization of both fresh and used catalysts. Addition of La2O3 to the catalyst matrix improved the dispersion of Ni and adsorption of CO2, thus its activity and stability enhanced.

关键词: CO2, methane reforming, Ni/&gamma, -Al2O3, La2O3, carbon deposition, H2/CO