文章基本信息

标题：Synergistic Emission Reduction of Particulate Pollutants in Coal-fired Power Plants Using Ultra-low Emission Technology
本地全文：下载
作者：Leixing Tao ; Yanyan Wang ; Chunmei Yue 等
期刊名称：Aerosol and Air Quality Research
印刷版ISSN：1680-8584
出版年度：2020
卷号：20
期号：11
页码：2529-2535
DOI：10.4209/aaqr.2020.01.0004
语种：English
出版社：Chinese Association for Aerosol Research in Taiwan
摘要：The total particulate matter (TPM) is a crucial indicator when evaluating flue gas emissions from coal-fired units. TPM contains solid and liquid contaminants and condensable particulate matter (CPM), which is mainly composed of sulfate and various anions, cations, and metal ions. This study selected three typical large-capacity coal-fired power plants in Shanghai retrofitted with ultra-low emission technology and monitored their emissions of PM2.5, SO3, and CPM during power generation. The results showed that the plants achieved comprehensive removal rates of 99.689–99.878% and 86.99–92.92% for PM2.5 and SO3, resulting in emitted concentrations of approximately 0.99–1.79 and 1.91–2.50 mg m–3, respectively, which are considerably lower than those associated with the traditional flue gas process. Additionally, a significant decrease in the emitted filterable particulate matter (FPM) caused a simultaneous decrease in CPM. After being equipped with the ultra-low emission technology, the units displayed a 76% reduction in the emitted FPM concentration and a smaller FPM/CPM ratio (1:2 vs. 1:1). The emitted TPM (the sum of CPM and FPM) was reduced by 82%, with an average measured concentration of 7.36 ± 3.56 mg m–3. The values we obtained are representative and provide basic data for environmental assessment and local environmental policy formulation.
关键词：Ultra-low emission; Total particulate matter; Condensable particulate matter; PM2.5; SO3.