高等学校化学学报

高等学校化学学报 ›› 1998, Vol. 19 ›› Issue (4): 626.

• 研究简报 • 上一篇    下一篇

添加贵金属的Ni/α-Al2O3催化剂甲烷部分氧化制合成气的研究

严前古1, 于作龙1, 远松月2   

  1. 1. 中国科学院成都有机化学研究所, 成都, 610041;
    2. 中国科学院长春应用化学研究所, 长春, 130022
  • 收稿日期:1996-11-28 出版日期:1998-04-24 发布日期:1998-04-24
  • 通讯作者: 远松月
  • 作者简介:严前古,男,26岁,博士研究生.
  • 基金资助:

    国家自然科学基金

Partial Oxidation of Methane to Synthesize Gas over Ni/ α-Al2O3 Catalyst Promoted by Noble Metals

YAN Qian-Gu1, YU Zuo-Long1, YUAN Song-Yue2   

  1. 1. Chengdu Institute of Organic Chemistry, Academia Sinica, Chengdu, 610041;
    2. Changchun Institute of Applied Chemistry, Academia Sinica, Changchun, 130022
  • Received:1996-11-28 Online:1998-04-24 Published:1998-04-24

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关键词: 贵金属, Ni/&alpha, －Al2O3催化剂, 甲烷部分氧化, 合成气

Abstract: The production of synthesis gas by partial oxidation of methane in oxygen has been examined over Ni/ α-Al2O3 catalyst promoted by noble metals(Rh, Ru, Pt and Pd), especially with Pt. The reactivity is considered in conjunction with the result of H2 TPR, CO TPD, SEMand XRD. It is found that small amount of Pt results in a great improvement of activity for the Ni/ α-Al2O3 catalyst. The activity order is : Rh-Ni>Pt-Ni≈Ru-Ni>Pd-Ni, meantime the Pt improves the stability of Ni/ α-Al2O3 catalyst except for Pd which is easy to be deactivated by carbon deposition. The results of TPD, SEMand XRDindicate that there is an interaction between Ni and Pt metals in the catalyst. The interaction increases the dispersions of Pt and Ni, the presence of Pt suppresses the growth and the migration of Ni grains over the surface of the catalyst.

Key words: Noble metals, Ni/ α-Al2O3 catalyst, Partial oxidation of methane, Synthesis gas

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