Field Study on the formation and emission characteristics of PM2.5 in coal fired power plant unit

2018 2nd International Workshop on Renewable Energy and Development

能源学;经济学

Xia, Yongjun^1 ; Huang, Guohui^2 ; Zhu, Yunpeng^1 ; Wang, Qian^1

Jiang Xi Electric Power Science and Research Institute of National Grid, Nanchang, Jiangxi Province, 330096, China^1

China Power Investment Corporation Jiangxi Branch Xinchang Power Ltd., Nanchang, Jiangxi Province

330117, China^2

关键词: Bimodal size distribution;    Coal-fired power plant;    Emission characteristics;    Fabric filters;    Particulate Matter;    Performance characteristics;    Pulverized coal fired power plant;    Wet flue gas desulfurization;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/153/6/062073/pdf
DOI  :  10.1088/1755-1315/153/6/062073

来源: IOP

【 摘 要 】

Particulate matter(PM) measurements were performed at the inlet and outlet of Fabric filter(FF) and the outlet of limestone-gypsum wet flue gas desulfurization (WFGD) tower at a 220MW pulverized coal fired power plant unit, and the PM formation characteristics, the performance characteristics of FF and the influence of WFGD to PM emission were discussed. The results showed that PM were of bimodal size distribution. The concentration of PMs larger than 2.5μm reduced in the WFGD while PMs less than 2.5μm particularly the PM diameter around 0.5μm increased due to the ultrafine PM aggregation as well as new PM formation from gypsum slurry entrainment.