中国燃煤发电1993—2008年CO_2减排研究

Study on CO_2 Reduction by Chinese Coal-Fired Power Generation between 1993 and 2008

对158种中国动力煤的CO2排放因子(CEF)进行了计算,给出了CEF随挥发分和发热量的分布规律。计算结果表明:中国无烟煤、贫煤、烟煤、褐煤的CEF平均值(1.0 MJ原煤发热量对应的CO2排放量)分别为0.102 8、0.096 8、0.097 8、0.099 7 kg/MJ,中国动力煤的CEF平均值是0.100 3 kg/MJ。根据1993—2008年中国燃煤发电量和供电煤耗数据,结合CEF的结果,计算得到1993—2008年中国燃煤发电累计减排的CO2量达到3.31亿t。

CO2 emission factors(CEF) of 158 Chinese power coals were calculated,and the distribution law of CEF with Vdaf and Qne,ar was obtained.The calculation results revealed that the CEF3 of Chinese anthracite,sub-bituminous coal,bituminous coal and lignite are 0.102 8,0.096 8,0.097 8,and 0.099 7 kg/MJ respectively.The average CEF3 of Chinese power coal is 0.100 3 kg/MJ.The electricity production and power supply coal consumption from 1993 to 2008 were studied,and combined with CEF3 calculation results,the calculation results revealed that from 1993 to 2008,the accumulative CO2 emission reduction of Chinese coal fired power plants reached 0.331 Gt.