Atmospheric emission inventory of SO3 from coal-fired power plants in China in the period 2009-2014
Atmospheric emission inventory of SO3 from coal-fired power plants in China in the period 2009-2014
复制标题
2009-2014年中国燃煤电厂SO3大气排放清单
DOI：
10.1016/j.atmosenv.2018.10.008
复制
发表时间：
2019
影响因子：
5
通讯作者：
Gao Xiang
中科院分区：
文献类型：
--
作者：
Shen Jiali;Zheng Chenghang;Xu Linjie;Zhang Yang;Zhang Yongxin;Liu Shaojun;Gao Xiang
三氧化硫（SO 3）污染是继SO2、NOx、PM之后燃煤电厂面临的又一严重问题，但我国SO 3排放特征尚不清楚。本文建立了精细化的活性数据，并根据文献综述和现场试验结果，总结了不同控制技术的去除效果。编制了2009 - 2014年中国燃煤电厂SO 3排放清单，结果表明，2009 - 2014年中国燃煤电厂SO 3排放量从199.7千吨增加到314.6千吨，年均增长率为9.7%。结果表明，内蒙古、陕西、江苏、山东、广东和贵州是2014年SO 3的最大排放源，占总排放量的49.7%。利用ArcGIS系统对历史数据进行分析，将排放量划分为36 km × 36 km的网格单元。此外，研究结果还显示出空间分布的不均匀性。结合未来经济发展和政策实施情况，设定了三种不同的情景来预测2020年燃煤电厂的SO 3排放量，这些情景代表了SO 3减排的潜力。与情景A相比，情景B可减少SO 3排放量83.9 kt，情景C可减少SO 3排放量38.4 kt。燃煤电厂应根据锅炉类型、含硫量和排放标准的不同，采用不同的技术路线来满足超低排放要求，减少SO 3的排放。
Sulfur trioxide (SO3) pollution is becoming another severe problem in coal-fired power plants after SO2, NOx, and PM, however, the characteristics of SO3emission in China remains unclear. In this paper, we established a refined activity data, and summarized the removal efficiency of different control technologies according to the literature review and field test results. An emission inventory of SO3from coal-fired power plants in China between 2009 and 2014 was developed, which indicated the SO3emission increased from 199.7 kilotons (kt) to 314.6 kt at an average annual growth rate of 9.7%. The results show that Neimenggu, Shānxi, Jiangsu, Shandong, Guangdong and Guizhou were the largest emitters, accounting for 49.7% of the total SO3emissions in 2014. We analyzed the historical data with ArcGIS system, which allocates the emission into 36 km × 36 km grid cells. In addition, the result shows the unevenly spatial distribution. Combined with future economic development as well as implementation of policy, three different scenarios were set to project SO3emission in coal-fired power plants in 2020, which represented the potential of SO3emission reduction. Compared with scenario A, SO3emission can be reduced to 83.9 kt in scenario B, and in scenarios C, SO3emission can be reduced to 38.4 kt. Coal-fired power plants should adopt different technology routes to meet the ultra-low emission requirement and reduce the SO3emission according to the boiler type, sulfur content, and the emission standard.