In order to objectively evaluate the energy consumption level,effectiveness and economy of different CO2 capture technologies,the concept and calculation model of emission reduction efficiency are proposed.The CO2 emission reduction efficiency represents the effective emission reduction ability of a kind of CO2 capture technology,that is,the effective reduction of CO2 emissions per unit of CO2 captured.The emission reduction efficiency model collects and normalizes the energy consumption of CO2 capture technology,and the larger the value,the better the emission reduction effect.Using the emission reduction efficiency model,the theoretical maximum emission reduction efficiency of CO2 capture technology in coal-fired power plants in China is currently 98％.The emission reduction efficiency of pre-combustion,combustion,and post-combustion capture technologies reaches 80％,70％,and 58％to 68％,respectively.Through engineering application practice verification,the emission reduction efficiency model can meet the evaluation requirements.The development of CO2 capture technology is discussed,and the CO2 emission reduction efficiency will exceed 90％in the future with the continuous progress and innovation of capture technology.
关键词
燃煤电厂/"双碳"目标/减排效率/CO2捕集/能耗
Key words
coal-fired power plant/carbon peak and carbon neutrality goals/emission reduction efficiency/CO2 capture/energy consumption
万方数据