Study on the Emission Characteristics of Organic Components in Condensable Particulate Matter from Low-Low Temperature Electric Precipitator and Sea Water Desulfurization

doi:10.11930/j.issn.1004-9649.202005153

Electric Power ›› 2020, Vol. 53 ›› Issue (12): 263-269.DOI: 10.11930/j.issn.1004-9649.202005153

Study on the Emission Characteristics of Organic Components in Condensable Particulate Matter from Low-Low Temperature Electric Precipitator and Sea Water Desulfurization

LIU Xiaomin¹, WANG Lele², HUANG Jianxun¹, HUANG Rongting³, XU Jizhuang¹, KONG Fanhai², XIE Jiannan¹, LI Jinjin³, YANG Linjun³, ZHANG Fajie², HE Chuan²

1. Xiamen Huaxia International Power Development Co., Ltd., Xiamen 361026, China;
2. Xi' an Thermal Power Research Institution Co., Ltd. (Suzhou Branch), Suzhou 215153, China;
3. Key Laboratory of Energy Thermal Conversion and Control of Ministry of Education (Southeast University), Nanjing 210096, China

Received:2020-05-19 Revised:2020-07-16 Published:2020-12-16
Supported by:
This work is supported by National Key Research and Development Program of China (Emission Control Technologies of Organic Compounds from Coal-Fired Process, No.2018YFB0605200), National Natural Science Foundation of China (Study on the Transition Mechanism of PM_2.5 in the Process of SCR Denitrification and its Effect on the Emission Characteristics of Coal-Fired Power Plants, No.51576039)

Abstract

Abstract: As the emission of condensable particulate matter (CPM) could exacerbate haze pollution, recently it has received more attention. In this study, CPM and its organic components were tested at different sampling sites of a flue gas purification system under the Coal 1 and Coal 2 combustion conditions, respectively. The top 10 organic components in CPM were analyzed. The results show that under the Coal 1 and Coal 2 combustion conditions, the mass emissions of CPM at the stack inlet are 4.2 and 5.6 mg/m³, respectively, and the removal efficiency of CPM by pollution control facilities after ultra-low emission transformation are 97.21% and 98.18%, respectively. In particular, the removal rates of the organic CPM by the low-low temperature electrostatic precipitator (LLTESP), the sea water wet flue-gas desulfurization (SWFGD) and the wet electrostatic precipitator (WESP) are 71.82%, 56.36% and 76.61% by average, respectively. Among them, LLTSEP exhibits general removal effect on esters, hydrocarbon and all other organic compounds. In comparison, SWFGD excels in the removal of the hydrocarbon compounds, while WESP has remarkable performance on reducing ester compounds.

Key words: coal-fired ultra-low emission unit, condensable particulate matter, organic components, emission characteristics, low-low temperature electrostatic precipitator, sea water wet flue-gas desulfurization

LIU Xiaomin, WANG Lele, HUANG Jianxun, HUANG Rongting, XU Jizhuang, KONG Fanhai, XIE Jiannan, LI Jinjin, YANG Linjun, ZHANG Fajie, HE Chuan. Study on the Emission Characteristics of Organic Components in Condensable Particulate Matter from Low-Low Temperature Electric Precipitator and Sea Water Desulfurization[J]. Electric Power, 2020, 53(12): 263-269.

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Study on the Emission Characteristics of Organic Components in Condensable Particulate Matter from Low-Low Temperature Electric Precipitator and Sea Water Desulfurization

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