Abstract
With regard to PM emission reduction, systematic design of both electrostatic precipitator (ESP) and flue gas desulfurization (FGD) benefits not only SO2 but also PM10 and PM2.5 (particles with diameters of less than 2.5 and 10 μm) emission control. For our 330–660 MW coal-fired boilers, PM2.5 and PM10 concentrations at the ESP outlet are usually below 2.5 and 20 mg/m3, respectively. Their concentrations at the FGD outlet are usually below 2.5 and 5 mg/m3, respectively. For colder-side ESPs with a specific collection area of not less than 100 m2/m3/s, the PM10 and PM2.5 concentrations can be controlled to be below 10 and 1.0 mg/m3, respectively. In comparison with traditional ESP at 120–140 °C energized by single-phase transformer reactifers (T/Rs), PM10 and PM2.5 emissions are usually reduced by a factor of 10 by using three-phase T/Rs.
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References
Wang SL et al (2014) PM10 and PM2.5 emission control by electrostatic precipitator(ESP) for coal-fired power plants I: ESP sizing and application; II: evaluation of ESP upgrading in terms of PM10 and PM2.5 emission reduction with a 660 MW generator, III: application with a 4 × 330 MW power plant. Sci Technol Rev 32(33):23–42 (in Chinese)
Xiao CY (2014) Technical progress for achieving low particle matter emission from coal-fired power plant. Sci Technol Rev 32(33):12 (in Chinese)
Zheng Q et al (2015) Recent progress of electrostatic precipitator for PM2.5 collection from coal-fired boiler, 2015 Asian aerosol conference (AAC2015), Kanazawa, Japan, 24–26 June 2015
Acknowledgments
This work was supported by National High Technology Research and Development Program of China (No. 2013AA065000). Author also likes to thank Prof. Dr. keeping Yan’s group of Zhejiang University for PM10 and PM2.5 measurements.
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© 2016 Springer Science+Business Media Singapore and Tsinghua University Press
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Xiao, C.Y. (2016). Technical Progress for PM Emission Control from Coal-Fired Boilers. In: Yue, G., Li, S. (eds) Clean Coal Technology and Sustainable Development. ISCC 2015. Springer, Singapore. https://doi.org/10.1007/978-981-10-2023-0_59
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DOI: https://doi.org/10.1007/978-981-10-2023-0_59
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