综述了国内外对火电厂烟道气中温室气体二氧化碳的捕集回收技术、基本原理及各自的特点,并对其进行了比较。重点叙述了膜分离方法和水合物分离方法的原理和特点,提出了将膜分离技术和水合物分离技术结合起来形成的在多孔膜的微孔内形成水合物而达到分离效果的水合物膜分离方法,阐述了此方法的基本原理,开发了水合物膜分离方法的工艺流程并对其可行性和优势进行了讨论。 In this paper, the domestic and foreign technologies and techniques for capture and recovery of greenhouse gas carbon dioxide from flue gas in thermal power plants are summarized and their characteristics are compared. The principles and characteristics of the membrane separation method and the hydrate separation method are mainly described. The hydrate membrane separation method which combines the membrane separation technology and the hydrate separation technology and forms the hydrate in the micropores of the porous membrane to achieve the separation effect is proposed Method, the basic principle of this method is expounded, the technological process of the hydrate film separation method is developed, and the feasibility and advantages are discussed.