基于在线监测的2015年中国火电排放清单

伴随着超低排放技术在中国火电行业的广泛应用，中国火电行业排放水平已发生了显著变化.故现有火电排放清单排放因子和排放量等无法反映当前火电污染物排放提标情况.基于全国火电在线监测（CEMS）、环境统计和排污许可等数据，提出一种自下而上逐企业建立中国火电行业排放清单的方法.与传统方法相比较，该方法的特点是更加全面的考虑了火电行业超低技术，实际排放浓度与活动水平等综合因素.作为实例，本文基于所提出的火电行业排放清单的方法计算了新的2015年中国火电行业排放清单（HPEC）.结果表明2015年全国火电厂SO₂、NO_x和烟尘平均排放浓度范围分别为7.88~208.57、40.33~238.2和5.86~53.93mg/m³.北京、上海火电排放基本达到《煤电节能减排升级与改造行动计划（2014~2020年）》制定的超低改造目标；绝大部分的省份SO₂、NO_x在线监测均值小于排污许可执行标准均值.中国燃煤机组的SO₂、NO_x、烟尘排放因子平均值分别为0.67、0.76、0.16g/kg（以入炉煤计）.全国火电CO、VOCs、NO_x、SO₂、PM₁₀、PM_2.5总排放量分别为403.87、10.73、122.94、146.68、28.72和22.80万t/a，平均排放绩效值分别为1.06、0.03、0.32、0.39、0.08、0.06g/（kW×h）.

High resolution power emission inventory for China based on CEMS in 2015

Ultra-low-emission technology has been extensively applicated in China's thermal power industry. Accompanyed with it, the emission level of China's thermal power industry has undergone significant changes. Therefore, inventory emission factors and emissions in China's thermal power industry is unable to reflect the current situation of thermal power pollutant emissions. In this paper, a bottom-up method was proposed to establish China's thermal power industry emissions, which was based on the data of continuous emission monitoring systems (CEMS) for thermal power, environmental statistics and the data of pollutant emission permits. Compared with traditional way, the proposed new method was characterized by a more comprehensive consideration of the ultra-low-tech thermal power industry, the actual concentration of emissions and activity levels and other comprehensive factors. It is a concrete example. And accroding to the proposed the bottom-up method, this paper calculated high resolution power emission inventory for China based on CEMS in 2015 (HPEC). The results showed that in 2015, the average emission concentration values of SO₂, NO_x and particulate matter in different provinces are 7.88~208.57, 40.33~238.20 and 5.86~53.93mg/m³, respectively. Beijing and Shanghai had reached ultra-low emission requirements as a whole. In most provinces, the average concentrations values of SO₂ and NO_x online monitoring less than the average implementation of emission permits standards. The average emission factors of SO₂, NO_x and particulate matter (PM) for China's thermal power plants were 0.667, 0.764, 0.162g/kg of coal for coal-fired power plants, respectively. The emission performance values of CO, VOCs, SO₂, NO_x, PM₁₀, PM_2.5 were 1.06, 0.03, 0.32, 0.39, 0.08, 0.06g/(kW×h), respectively. The emissions of that in 2015 were 4038.7, 107.3, 1229.4, 1466.8, 287.2, 228.0kt/a, respectively.