燃煤电厂二氧化碳捕捉技术进展研究

Research on CO_(2) Capture Technology Progress for Coal-fired Power Plant

在中国能源供应结构仍以化石能源为主、电力供应仍以燃煤电厂为主的状况下,为实现碳中和的目标,二氧化碳捕捉技术作为可能的兜底技术仍具有重要的意义。通过对主流的二氧化碳捕捉技术的原理和特点进行系统梳理,得出了富氧燃烧技术尤其是化学链燃烧技术、氧化钙循环捕捉技术与燃煤电厂的工艺耦合性好、成本相对较低,适用于燃煤电厂存量市场的技术改造。

At present,the fossil fuel still plays a dominant role to satisfy the energy needs domestically,especially in the form of coal-fired power plant.Thus,it is most likely for CO_(2) capture technology to be an important choice to achieve carbon neutrality.By systematically combing the principles and characteristics of mainstream CO_(2) capture technology,this paper concluded that oxy-combustion,especially the chemical looping combustion and the CaO-based looping capture technology is of good coupling with the process of coal-fired power plants and of lower costs,which is suitable for the technological transformation of the coal-fired power plant stock market.