| 民用煤排放PM2.5中碳组分与水溶性离子特征 |
| |
| 引用本文： | 李朋,周卫青,徐其春,宁亮,吴华成,周子龙,丁立萍.民用煤排放PM2.5中碳组分与水溶性离子特征[J].中国环境科学,2022,42(11):5047-5054. |
| |
| 作者姓名： | 李朋 周卫青 徐其春 宁亮 吴华成 周子龙 丁立萍 |
| |
| 作者单位： | 1. 国网冀北电力有限公司电力科学研究院(华北电力科学研究院有限责任公司), 北京 100045;2. 国网冀北电力有限公司唐山供电公司, 河北 唐山 063000 |
| |
| 基金项目： | 国家电网公司总部科技项目(5200-202114093A-0-0-00) |
| |
| 摘 要： | 研究4种典型民用煤燃烧排放PM2.5中的碳组分以及水溶性离子含量特点,并通过PAM-OFR(潜在气溶胶质量-氧化流动反应器)模拟了大气老化过程(2d)对煤球与烟煤燃烧PM2.5中碳组分与水溶性离子含量的变化影响。结果表明,烟煤燃放PM2.5中碳组分含量最高,达到57.96%,其EC含量是其他煤种的4.3~9.6倍。民用煤燃烧产生PM2.5中水溶性离子以Na+与SO42-为主,其在总水溶性离子中占比合计约47%~76%。经历了大气老化试验后,煤球与烟煤燃烧排放PM2.5中NH4+和NO3-离子含量大幅增加,与之相比,TC占PM2.5比例分别下降了12.03%与19.99%。
|
| 关 键 词： | 民用煤 碳组分 水溶性离子 大气老化 PAM-OFR |
| 收稿时间： | 2022-04-03 |
Emission characteristics of carbonaceous components and water-soluble ions in PM2.5 from residential coal combustion |
| |
| LI Peng,ZHOU Wei-qing,XU Qi-chun,NING Liang,WU Hua-cheng,ZHOU Zi-long,DING Li-ping.Emission characteristics of carbonaceous components and water-soluble ions in PM2.5 from residential coal combustion[J].China Environmental Science,2022,42(11):5047-5054. |
| |
| Authors: | LI Peng ZHOU Wei-qing XU Qi-chun NING Liang WU Hua-cheng ZHOU Zi-long DING Li-ping |
| |
| Institution: | 1. Jibei Electric Power Research Institute, State Grid Jibei Electric Power Co., Ltd., (North China Electric Power Research Institute Company Limited), Beijing 100045, China;2. Tangshan Electric Power Company, State Grid Jibei Electric Power Co., Ltd., Tangshan 063000, China |
| |
| Abstract: | In this study, the characteristics of carbonaceous components and water-soluble ions in PM2.5 emitted from the combustion of 4typical residential coals were studied, and the effects of atmospheric aging (2d) on the content of carbonaceous components and water-soluble ions in PM2.5emitted from briquettes and bituminous coal were simulated by PAM-OFR (potential-aerosol-mass oxidation flow reactor). The results showed that bituminous coal had the highest content of carbonaceous components in PM2.5, reaching 57.96%, and its EC content was 4.3~9.6 times that of other residential coals. The water-soluble ions in PM2.5 emitted by residential coal combustion were mainly Na+ and SO42-, which accounted for 47%~76% of the total water-soluble ions. After the atmospheric aging, the content of NH4+ and NO3- ions in PM2.5 emitted from the combustion of briquettes and bituminous coal increased significantly, while the proportion of TC in PM2.5 decreased by 12.03% and 19.99%, respectively. |
| |
| Keywords: | residential coal carbonaceous components water-soluble ions atmospheric aging PAM-OFR |
|
| 点击此处可从《中国环境科学》浏览原始摘要信息 |
| 点击此处可从《中国环境科学》下载免费的PDF全文 |
|
