煤基能源碳捕集利用与封存技术研究进展

Research progress on carbon dioxide capture,utilization and storage technology for coal-based energy industry

综述了国内外二氧化碳捕集利用与封存(CCUS)全链条技术研究进展,探讨了燃烧前、富氧燃烧、燃烧后等CO_(2)捕集技术,其中化学吸收法技术最成熟、应用最广泛;分析了化学利用、生物利用、地质利用与封存等CO_(2)下游消纳技术,拓展转化利用途径和提升循环利用效率是关键;总结了煤电和煤化工CCUS典型工程案例,指出了探索典型能源基地CCUS产业集群具有重要意义,可为双碳目标提供兜底保障。

The research progress on the whole CCUS chain technology in the world is reviewed.The CO_(2)capture technologies based on pre-combustion,oxy-fuel combustion and post-combustion are discussed,among which chemical absorption method is the most mature and widely used technology.Furthermore,the CO_(2)consumption technologies such as chemical utilization,biological utilization,geological utilization and storage are analyzed,and the key is to expand the conversion and utilization ways,and improve recycling efficiency.The typical CCUS demonstration project cases in coal-fired power and coal chemical industry are summarized.It is proposed that exploring CCUS industrial clusters in typical energy bases should be of great significance in the future,so as to provide guarantee for achieving China's carbon dioxide emission peaking and carbon neutralization goal.