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

doi:10.1016/S1004-9541(14)60029-X

Chinese Journal of Chemical Engineering ›› 2014, Vol. 22 ›› Issue (1): 28-37.DOI: 10.1016/S1004-9541(14)60029-X

• 催化、动力学与反应工程 • 上一篇下一篇

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

Chemical Engineering Department, College of Engineering, King Saud University, P.O. Box 800, Riyadh 11421, Kingdom of Saudi Arabia

收稿日期:2012-11-08 修回日期:2013-04-26 出版日期:2014-01-05 发布日期:2014-01-04
通讯作者: 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

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:2014-01-05 Published:2014-01-04
Contact: Ahmed S. Al-Fatesh

摘要/Abstract

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

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

Ahmed S. Al-Fatesh, Muhammad A. Naeem, Anis H. Fakeeha, Ahmed E. Abasaeed. Role of La₂O₃ as Promoter and Support in Ni/γ-Al₂O₃ Catalysts for Dry Reforming of Methane[J]. Chinese Journal of Chemical Engineering, 2014, 22(1): 28-37.

Ahmed S. Al-Fatesh, Muhammad A. Naeem, Anis H. Fakeeha, Ahmed E. Abasaeed. Role of La₂O₃ as Promoter and Support in Ni/γ-Al₂O₃ Catalysts for Dry Reforming of Methane[J]. Chin.J.Chem.Eng., 2014, 22(1): 28-37.

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

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

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