碳捕集利用与封存技术研究进展

Research progress of carbon capture utilization and storage technology

碳捕集、利用与封存(Carbon Capture,Utilization and Storage,CCUS)作为应对全球气候变化的关键技术,是实现“双碳”目标之利器,受到全球的广泛关注。本文对CCUS全流程及其技术进行总结,重点介绍了燃烧前捕集、富氧燃烧捕集和燃烧后捕集3种类型,其中燃烧后捕集在技术上最为成熟;CO_(2)运输方式主要有管道运输、罐车运输以及船舶运输,其中管道运输是未来发展的重点。阐述了国内外现阶段CCUS示范项目发展现状,同时总结了制约目前CCUS发展的经济、技术及政策等因素。未来应重点突破的技术壁垒,研发新型高效、低耗碳捕集技术,加快发展多能互补耦合利用模式,以促进CCUS项目落地发展,保障我国碳排放战略的实施和实现。

Carbon capture,utilization and storage(CCUS),as a key technology to address global climate change,is a powerful tool to achieve the goal of“dual carbon”and has received widespread attention worldwide.This paper summarized the whole CCUS process and its technology and focused on three types of capture including pre-combustion capture,oxy-fuel combustion capture,and post-combustion capture.Among them,the last one is the most mature technology.CO2 transport methods mainly include pipeline transport,tanker transport and ship transport,among which the first one is the focus of future development.The current development status of CCUS demonstration projects at home and abroad was explained,and the economic,technical and policy factors that restrict its development were summarized.In the future,the focus should be on breaking through technical barriers,developing new high-efficiency and low-energy carbon capture technologies,and accelerating the development of multi-energy complementary coupling utilization models to promote the development of CCUS projects,thereby realizing China's carbon emission strategy.