中华医学超声杂志

应用化学 ›› 1997, Vol. 0 ›› Issue (3): 19-23.

• 研究论文 • 上一篇    下一篇

Ni/Al2O3催化剂上甲烷部分氧化制合成气

严前古1, 于军胜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;
    2. 中国科学院长春应用化学研究所, 长春 130022
  • 收稿日期:1996-11-12 修回日期:1997-01-17 出版日期:1997-06-10 发布日期:1997-06-10

Catalytic Activity of Ni/α-Al2O3 for Partial Oxidation of Methane to Synthetic Gas

Yan Qiangu1, Yu Junsheng1, Yu Zuolong1, Yuan Songyue2   

  1. 1. Chengdu Institute of Organic Chemistry, Chinese Academy of Sciences, Chengdu;
    2. Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022
  • Received:1996-11-12 Revised:1997-01-17 Published:1997-06-10 Online:1997-06-10

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摘要： 研究了Ni/Al2O3催化剂对甲烷部分氧化制合成气的反应性能。结果表明,催化剂在其活性组份Ni为10%时反应性能最好。条件实验表明,在600～900℃范围内,甲烷转化率和CO、H2的选择性随温度升高而增加;转化率和选择性在甲烷空速≤1.5×105h-1时基本不变,空速>1.5×105h-1时,转化率和选择性有所下降。随着压力的增加(0.05～0.40MPa),转化率和选择性下降。SEM和化学分析结果证明在反应过程中,Ni组份存在烧结和流失现象。

关键词: 甲烷, 部分氧化, 合成气, Ni/Al2O3催化剂

Abstract: The catalytic activity of Ni/α-Al2O3 for partial oxidation of methane to synthesis gas has been studied. It is found that the catalyst of 10% Ni content was the best one for partial oxidation of methane under the conditions of 600～900℃ reaction temperature, 0.05 MPa pressure, a high space velocity of methane, and CH4/O2=2 0. Under the conditions used the methane conversion and the selectivity of CO and H2 were increased with increase of temperature(600～900℃)and decreased with increase of pressure(0.05 MPa～0.4 MPa)the space velocity influenced the catalyst activity. During the reaction, Ni component was found to be sintered and diminished, as confirmed by SEM observations and chemical analysis.

Key words: methane, partial oxidation, synthesis gas, Ni/α-Al2O3 catalyst

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