摘要
为研究燃煤电厂烟气汞在未来不同情景下的减排潜力,统计并计算中国原煤中汞的平均含量以及超低排放控制下中国燃煤电厂治理设施对汞的平均综合脱除效率,并对不同情景模式下中国未来燃煤电厂发电煤炭消耗量进行预测,最后通过排放因子法估算出中国燃煤电厂在目标年份的烟气汞的排放量。结果表明:中国原煤中汞的平均含量为0.201g/t;在超低排放下的燃煤电厂治理设施对汞的平均脱除效率达到了88.44%,不同的超低排放治理设施组合在对烟气中的汞都具有较好的脱除效果;在既有政策和强化政策两种情景模式下,预测在2025、2030年,中国燃煤电厂煤炭消耗量分别在18.85亿~21.30亿t和18.47亿~24.40亿t;与2018年中国燃煤电厂55.98t烟气汞的排放量相比,2020年的减排幅度为2.07%,两种情景模式下,2025年减排幅度为7.15%和17.85%,2030年减排幅度为20.35%和34.35%。
In order to study the emission reduction potential of mercury in flue gas of China's coal-fired power plants in the future,the average content of mercury in raw coal in China,as well as the average comprehensive mercury removal efficiency of treatment facilities of coal-fired power plants in China under ultra-low emission control is recorded and calculated.Moreover,the coal consumption of coal-fired power plants in China in the future under different scenario models is predicted.The mercury emission in the flue gas of China's coal-fired power plants in the target year is estimated by the emission factor method.The results show that the average content of mercury in raw coal in China is 0.201g/t;the average comprehensive mercury removal efficiency of treatment facilities of coal-fired power plants in China under ultra-low emission control is 88.44%and different combinations of ultra-low emission treatment facilities have good removal effects on mercury;the coal consumption of China's coal-fired power plants will be 1.885 billion~2.130 billion ton and 1.847 billion~2.440 billion ton in 2025 and 2030 respectively under the two scenarios of existing policies and strengthened policies.Compared with the emission of 55.98 t flue gas mercury from China's coal-fired power plants in 2018,the emission reduction rate in 2020 was 2.07%.Under the above two scenarios,the emission reduction rates in 2025 will be 7.15%and 17.85%,and that in 2030 will be 20.35%and 34.35%.
作者
王家新
孙雪丽
朱法华
许月阳
李辉
WANG Jiaxin;SUN Xueli;ZHU Fahua;XU Yueyang;LI Hui(State Environmental Protection Key Laboratory of Atmospheric Physical Modeling and Pollution Control(CHN ENERGY Science and Technology Research Institute Co.,Ltd.),Nanjing 210031,Jiangsu Province,China)
出处
《中国电机工程学报》
EI
CSCD
北大核心
2023年第10期3875-3884,共10页
Proceedings of the CSEE
基金
国家能源集团科技项目(GJNY-20-109)
国家重点研发计划项目(2016YFC0208102)。
关键词
燃煤电厂
烟气汞
减排潜力
排放因子法
超低排放
情景模式
coal fired power plant
mercury in fuel gas
emission reduction potential
emission factor method
ultra low emission
scenarios
