京津冀大气污染传输通道城市燃煤大气污染减排潜力

以京津冀大气污染传输通道城市为研究对象，建立了燃煤电厂、燃煤锅炉、农村散煤三大污染源主要大气污染物排放计算方法，以2015年为基准年，梳理现有燃煤污染减排政策措施，对2017年“2+26”城市燃煤污染源SO₂、NOx、PM、PM₁₀、PM_2.5的减排潜力进行了分析.结果表明：实施燃煤电厂超低排放改造、燃煤锅炉淘汰或改造、散煤改电（气）等措施后，“2+26”城市2017年燃煤SO₂、NOx、PM、PM₁₀、PM_2.5排放量分别达到87×10⁴t、56×10⁴t、64×10⁴t、45×10⁴t、32×10⁴t，预计比2015年分别减少44%、48%、33%、32%、30%.燃煤电厂、燃煤锅炉、农村散煤替代各项污染物减排比例分别在55%~70%、31%~38%、18%~21%，未来农村散煤治理的减排潜力还较大.从各城市情况来看，多数城市燃煤SO₂、NO_x减排主要来自燃煤电厂超低排放改造；保定、廊坊等城市燃煤颗粒物减排量较大，得益于散煤治理工作的大力推进.

Air pollutant emissions reduction potential from burning coal in cities of air pollution transmission channel in Beijing-Tianjin-Hebei area

A framework to estimate air pollutant emissions from coal-fired power plants, coal-fired boilers, and rural residential coal-using was developed for the "2+26" cities located in the air pollution transport channels in the Beijing-Tianjin-Hebei area. The existing policies and measures to control emissions from burning coal in "2+26" cities were summarized and the potentials of reducing SO₂、NO_x、PM、PM₁₀、PM_2.5 emissions was quantified for year 2017. The results showed that SO₂、NO_x、PM、PM₁₀、PM_2.5 emissions from burning coal were 87×10⁴t、56×10⁴t、64×10⁴t、45×10⁴t、32×10⁴t in 2017, respectively, 44%, 48%, 33%, 32% and 30% less than which in 2015 due to implementation of major emission control measures including the ultra-low emissions retrofitting in coal-fired power plants, eliminating the coal-fired boilers and switching raw coal into electricity (gas). The reduction rates of coal-fired power plants, coal-fired boilers, and rural raw coal were 55%~70%, 31%~38%, 18%~21%, respectively. SO₂ and NO_x emission reductions were mainly attributed to the ultra-low emission of coal-fired power plants for most cities, and PM emission reductions from burning coal of Langfang and Baoding were most significant in the "2+26" cities, mainly thanks to strongly promoting switch from coal into electricity and gas in residential sector.