Electric Power ›› 2019, Vol. 52 ›› Issue (3): 29-35.DOI: 10.11930/j.issn.1004-9649.201812056

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Collaborative Removal of SO3 and Hg by Electrostatic-Fabric Integrated Precipitator

CHEN Kuixu   

  1. Fujian Longking Co., Ltd., State Environmental Protection Engineering Technology Center for Power Industry Dust Control, Longyan 364000, China
  • Received:2018-12-17 Revised:2019-01-08 Online:2019-03-05 Published:2019-03-27

Abstract: Featured by long-term stable dust emissions, high adaptability to varieties of coal, low investments, less land occupation and low maintenance costs, the electrostatic-fabric integrated precipitator (EFIP) technology has been widely used in coal-fired power plants in China in recent years. The removal efficiency of SO3 by EFIP exceeds 60%, which can be boosted to more than 80% after spraying a small amount of alkaline adsorbent. The removal efficiency of HgP by EFIP exceeds 99%. As for gaseous and total amount of mercury, though affected by the distribution of mercury in flue gas, the removal efficiency of gaseous mercury can still be improved to over 90% after spraying the adsorbents. Compared with other pollutant removal equipment, EFIP has obvious advantages in its high efficiency and low cost for collaborative removal of gaseous pollutants such as SO3 and Hg.

Key words: coal-fired power plant, electrostatic-fabric integrated precipitator, collaborative removal, SO3, Hg

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