高等学校化学学报

高等学校化学学报 ›› 1991, Vol. 12 ›› Issue (3): 394.

• 论文 • 上一篇    下一篇

Bi2O3/γ-Al2O3系助燃剂的性能研究

杜尧国1, 崔湘浩2, 王宝辉2, 马英德2   

  1. 1. 吉林大学环境科学系, 130023;
    2. 吉林大学化学系
  • 收稿日期:1989-07-17 出版日期:1991-03-24 发布日期:1991-03-24
  • 通讯作者: 杜尧国

Studies on the Properties of Bi2O3-Al2O3Type Promotors

Du Yao-guo1, Cui Xiang-hao2, Wang Bao-hui2, Ma Ying-de2   

  1. 1. Department of Environment Science, Jilin University, Changchun, 130023;
    2. Department of Chemistry, Jilin University, Changchun
  • Received:1989-07-17 Online:1991-03-24 Published:1991-03-24

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摘要： 负载性Pt助燃剂已被广泛应用。由于助燃剂能促进CO的转化成CO2,对焦炭本身的燃烧速度无明显影响,故欲强化催化剂再生过程应提高其表面结焦的燃烧速度。我们制备了一系列Bi2O3/γ-Al2O3助燃剂以取代较为昂贵的Pt系助燃剂,并考察了Bi系助燃剂的物相结构、表面吸附性能、抗硫性及CO催化氧化活性和烧碳速度。结果表明,在高温实用区域,Bi系和Pt系对CO催化氧化活性相近,Bi系尚具有较好的去焦性能,有利于催化剂再生。

关键词: Bi2O3/&gamma, -Al2O3, CO氧化, 助燃剂

Abstract: Aseries of alumina-supported promotors Bi2O3/Al2O3were prepared by the methods of the impregnation and the decomposition of their corresponding salts. The catalytic activities of CO oxidation and coke-carbon, and sulfur-resistant of the promotors were investigated. The results show that the promotors are close to Pt/Al2O j in the catalytic activities and sulfur-resistant at about 600℃. It is expected that the Pt/Al2O3is used as the promotors for the catalytic cracking in the regeneration of zeolite catalyst, in which it can enhance the combustion rate of coke and decrease the percentage of CO in tail gases.

Key words: Bi2O3/γ-Al2O3, CO oxidation, Promotors

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