近年来,对天然气的综合利用已逐渐为人们所重视。甲烷氧化偶联制乙烯、乙烷这一新课题受到催化工作者愈来愈多的关注。本工作初步探讨了Li-Ln-MgO三元氧化物催化剂对甲烷氧化偶联反应的催化性能。添加稀土元素可使C_2的选择性、单收明显提高。本催化剂体系制备简单、原料便宜,值得进一步开发研究。 In recent years, the comprehensive utilization of natural gas has gradually attracted people’s attention. The new topic of oxidative coupling of methane to ethylene and ethane has drawn more and more attention from catalytic workers. In this work, the catalytic performance of Li-Ln-MgO ternary oxide catalyst for methane oxidative coupling was discussed. Addition of rare earth elements C 2 selectivity, single significantly improved. The preparation of the catalyst system is simple, cheap raw materials, it is worth further development and research.