可再生能.发电对 PM10和 PM2.5减排的贡献核算

摘要

Developing renewable energy power generation is an important measure of Action Plan for Air Pollution Prevention and Control, which is helpful to promote PM10 and PM2.5 emission reduction and improve air quality . From life cycle perspective , the PM10 and PM2.5 emission factors of all kinds of renewable energy power generation are lower than coal-fired thermal power generation .The PM10 and PM2.5 reduction factor of unit power generation of different kinds of renewable energy power generation are in descending order of hydro power , grid connected wind power, solar power, and biomass power.According to life cycle assessment results , a reduction of 3.787 ×105 t/a PM10 and 1.894 ×105 t/a PM2.5 was realized by replacing coal-fired thermal power generation with renewable energy power generation in 2012 , showing a good effect of emission reduction .There should be a greater reduction potential in the future, with a reduction of 4.421 ×105 t/a PM10 and 2.210 ×105 t/a PM2.5 in 2015 and 6.541 ×105 t/a PM10 and 3.271 ×105 t/a PM2.5 in 2020.%发展可再生能源发电是《大气污染防治行动计划》的一项重要措施，有助于推进PM10和PM2.5减排，改善空气质量。从生命周期来看，各类可再生能源发电的PM10和PM2.5排放系数均低于燃煤火电，各类可再生能源发电单位发电量的PM10和PM2.5减排因子由高到低依次为水电＞并网风电＞太阳能发电＞生物质发电。通过生命周期评价计算可知，以可再生能源发电替代燃煤发电，PM10和PM2.5在2012年已经实现了较好的减排效果，减排量分别为37.87×104和18.94×104 t/a；未来仍将具有较大的减排潜力，2015年PM10和PM2.5可分别减排44.21×104和22.10×104 t/a，2020年PM10和PM2.5可分别减排65.41×104和32.71×104 t/a。