合成气催化转化直接制备低碳烯烃研究进展

Research progress in the direct conversion of syngas to lower olefins

合成气直接催化转化制备低碳烯烃是C1化学与化工领域中一个极具挑战性的研究课题,具有流程短、能耗低等优势,已成为非石油路径生产烯烃的新途径。直接转化方式主要包括经由OX-ZEO双功能催化剂直接制低碳烯烃的双功能催化路线以及经由费托反应直接制备低碳烯烃的FTO路线。综述简述了近年来在合成气直接制备低碳烯烃方面的研究进展,重点讨论了低碳烯烃的形成机理、新型催化剂的研发及助剂对其催化性能的影响,并对合成气直接制烯烃的未来进行了展望。

The direct conversion of syngas to lower olefins is one of the most challenging subjects in the field of C1 chemistry; it is considered as a new attractive route for producing lower olefins from non-petroleum resources,owing to its process simplicity and low energy consumption. Bifunctional catalysis using composite catalysts such as OX-ZEO and Fischer-Tropsch to olefins（ FTO） reaction are two main pathways for the direct conversion of syngas to lower olefins. In this paper,the recent research progress made in the direct conversion of syngas to lower olefins via these ways was reviewed. The catalysis mechanism for olefins formation,the design and development of novel catalysts,as well as the effect of various additives on the catalyst performance were considered; lastly,an expectation outlook was given on the future trend for the direct conversion of syngas to lower olefins.