甲烷二氧化碳氧气氧化重整的研究

STUDY ON OXIDATIVE REFORMING OF CH4 WITH CO2 AND O2

在镍基催化剂催化的甲烷二氧化碳重整反应中加入氧气使得放热性的甲烷选择性氧化与吸热的二氧化碳重整两种反应能够同时进行。实验结果表明,氧气的加入降低了反应温度,同时还可以在一定程度上调节H2/CO比。良好的催化剂稳定性可能是由于镍粒子在表面镧氧化物中分布的结果。

The methane reforming with CO2 in the presence of O2 was studied on a Ni - based catalyst. It is found that the exothermic partial oxidation of CH4 and the endothermic CO2 reforming can be carried out simultaneously, whieh make it possible for the reaction to be operated at temperatures lower than methane reforming with CO2 and to tune the H2/CO ratio of the product to a certain extent. The excellent stability of the Ni-based catalyst is attributed to the fine distribution of Ni particles into the lanthanum oxide.