二氧化碳氧化剂在烷烃催化转化反应中的应用研究进展

Study of carbon dioxide as oxidant in alkanes catalytic conversion

本文综述了近年来国内外有关利用二氧化碳作为氧化剂在烷烃催化转化反应中的研究状况。担载型的金属氧化物催化剂具有较好的催化活性。催化剂表面碱性位的存在可稳定活性中心并且有利于CO2的活化,CO2的作用是与烷烃脱氢产物H2和生成的表面积炭反应,从而提高反应活性及催化剂的稳定性。

A review is presented on carbon dioxide as oxidant in alkanes catalytic conversion in the last 30 years.The supported metal oxide catalysts exhibits high catalytic performance.The results shows that the surface basic sites of catalysts are important to firm active centers and activate CO2.One of the actions of CO2 is to react with H2 or coke from dehydrogenation of alkanes and enhances catalytic performance.The reaction mechanisms are also discussed.