2010～2015年中国燃煤电厂NO_x排放特征  

Characteristics of NO_x emissions from coal-fired power plants in China from 2010 to 2015

作　　者：蒋春来[1] 宋晓晖[1] 钟悦之[1] 王彦超[1] 雷宇[1] JIANG Chun-lai;SONG Xiao-hui;ZHONG Yue-zhi;WANG Yan-chao;LEI Yu＊(Chinese Academy for Environmental Planning,Beijing 100012,China)

机构地区：[1]环境保护部环境规划院,北京100012

出　　处：《中国环境科学》2018年第8期2903-2910,共8页China Environmental Science

基　　金：国家重点研发计划大气污染成因与控制技术研究专项(2016YFC0208400)

摘　　要：基于中国2011～2015年发电企业逐台燃煤机组基础信息、活动水平及控制技术等,建立了燃煤电厂NO_x排放量计算方法和排放数据库.利用该方法,计算了2011～2015年逐个机组NO_x排放量,分析了2010～2015年中国燃煤电厂NO_x排放特征.结果表明:中国燃煤电厂NO_x排放量自2010年的1073万t增加到2011年的1132万t,达到排放峰值,随后逐年下降,到2015年下降到522万t.燃煤电厂NO_x排放地区分布不均衡,2015年内蒙、山东、江苏、江西、河南、河北、辽宁是排放量最大的省份,占中国燃煤电厂排放总量的48.8%.上海、江苏、天津、宁夏、山东、浙江和山西是排放强度最大的省份.从机组规模来看,单台容量在300～≤600MW之间的燃煤机组是NO_x排放的主要来源,当机组装机容量从100MW提高到1000MW时,NO_x平均排放绩效从2.91g/kWh降至0.48g/kWh,下降了近84%,这主要是由于装机容量越大的燃煤发电机组,电力工业技术水平和污染治理水平越高,NO_x平均绩效越低,环境行为越好.The activity data and technical information of coal-fired power units in China from 2011 to 2015 were collected. A NOxemission calculating model and an emission database was developed for coal-fired power plants. And the NOx emissions characteristics of coal-fired power plants in China from 2011～2015 were analysed. NOx emissions increased from 10.73 million tons in 2010 to 11.32 million tons in 2011, then decreased in the following 4 years, to 5.22 million tons in 2015. The layout of NOxemissions is uneven. Inner Mongolia, Shandong, Jiangsu, Jiangxi, Henan, Hebei and Liaoning contributed 48.8% of total NOxemissions from Chinese coal-fired power plants in 2015. Shanghai, Jiangsu, Tianjin, Ningxia, Shandong, Zhejiang and Shanxi ranked top 7 by emission intensity. Units with capacity between 300 MW and 600 MW contribute the largest part of NOx emissions. The average NOx emission performance of 100 MW level units was 2.91 g/kWh, and which of 1000 MW level units was 0.48 g/kWh. The larger units performs better in terms of emissions because they apply better technology and install more advanced pollution abatement facilities.

关 键 词：电厂 NOx 排放特征 排放清单 中国 

分 类 号：X511[环境科学与工程—环境工程]