低碳烷烃与二氧化碳催化转化研究进展

页岩气革命为低碳经济发展提供了重要契机.在低碳烷烃(甲烷和乙烷)催化转化过程中,以二氧化碳作为氧化剂参与反应,通过C–H键的选择性活化可将页岩气转化为优质化工原料——合成气和乙烯,是一种低碳烷烃转化与二氧化碳资源化利用的工艺路线.本文总结了近年来甲烷干重整与乙烷和二氧化碳反应中与C–H键活化相关的研究进展,分析了甲烷干重整中镍基催化剂积碳及乙烷和二氧化碳反应中产物选择性的主要影响因素,并对该研究未来的发展方向进行了展望.

Progress in the catalytic conversion of light alkanes with carbon dioxide

The shale gas revolution provides an important opportunity for the development of low-carbon economy. In the catalytic conversion process of light alkanes(methane and ethane), carbon dioxide(CO₂) is used as an oxidant to participate in the reaction, where shale gas is converted into high-quality raw materials—synthesis gas and ethylene through C–H bond activation—an efficient process route for light alkanes conversion and CO₂ utilization. This article summarizes the recent progress related to C–H bond activation in dry reforming of methane(DRM), oxidative dehydrogenation of ethane(ODHE), and dry reforming of ethane(DRE) with CO₂, and analyzes the key factors of carbon deposition on Ni-based catalysts in DRM as well as product selectivity in ODHE and DRM. The prospect for the future research in this direction is also proposed.