应用化学 ›› 1990, Vol. 0 ›› Issue (4): 75-77.

• 研究简报 • 上一篇    下一篇

稀土复合氧化物催化剂上的甲烷氧化偶联

王连驰, 远松月, 边宏, 吴越   

  1. 中国科学院长春应用化学研究所 长春 130022
  • 收稿日期:1989-09-13 修回日期:1989-11-10 出版日期:1990-08-10 发布日期:1990-08-10
  • 基金资助:
    国家自然科学基金

OXIDATIVE COUPLING OF METHANE OVER RARE EARTH MIXED OXIDE CATALYSTS

Wang Lianchi, Yuan Song ue, Bian Hong, Wu Yue   

  1. Changchun Institute of Applied Chemistry, Academia Sinica, Changchun 130022
  • Received:1989-09-13 Revised:1989-11-10 Published:1990-08-10 Online:1990-08-10

摘要: 甲烷氧化偶联反应是近年来研究十分活跃的反应,开发的催化剂体系多种多样,各有特点,活性相近,但尚没有一致公认的优良催化剂体系,根据我国稀土资源丰富的特点,本文旨在开发含稀土的复合氧化物新催化剂体系并探讨其催化行为。

关键词: 甲烷, 氧化偶联, 催化剂, 稀土氧化物

Abstract: Rare earth oxides have been used as catalysts for the oxidative coupling of methane,La2O3 and Sm2O3 showed higher C2 selectivity. The mixture of La2O3 and alkaline earthoxide was found to be effective for oxidative coupling, among them binary oxide of La-Ba(1:1) gave the highest C2 yield, up to 20%. It is suggested that there could be a combination effect of this binary system due to the structural influences, such as the specific sur-face area. Based on the temperature dependence of the products distribution, a mechanism ofthe reaction was proposed.

Key words: methane, oxidative coupling, catalyst, rare earth oxide