2020 Volume 39 Issue 10
Article Contents

DA Chunnian, WANG Hai, XU Bo, LIU Guijian, LIU Zhuang, WEI Yong, WANG Ruwei. The migration and release characteristics of chlorine during coal combustion in coal-fired power plants[J]. Environmental Chemistry, 2020, (10): 2833-2839. doi: 10.7524/j.issn.0254-6108.2020041702
Citation: DA Chunnian, WANG Hai, XU Bo, LIU Guijian, LIU Zhuang, WEI Yong, WANG Ruwei. The migration and release characteristics of chlorine during coal combustion in coal-fired power plants[J]. Environmental Chemistry, 2020, (10): 2833-2839. doi: 10.7524/j.issn.0254-6108.2020041702

The migration and release characteristics of chlorine during coal combustion in coal-fired power plants

  • Corresponding author: LIU Guijian, lgj@ustc.edu.cn
  • Received Date: 17/04/2020
    Fund Project: Supported by Anhui Postdoctoral Fund (2019B332), Domestic Visiting and Training Program for Outstanding Young Talents in Colleges and Universities (gxgnfx2019057), Natural Science Foundation of Anhui Province (2008085MD119) and National Key Research and Development Program of China(2016YFC0201600).
  • Based on the contents of chlorine (Cl) determined by ion chromatography, this study systematically investigated the levels, occurrence and transformation of Cl in coal and its combustion products from four coal-fired power plants (CFPPs) in Anhui province. Results indicated that Cl content in coals was low, which positively correlated with the contents of lead, mercury, and total sulfur, whereas weakly correlated with the moisture and ash yield.The releasing rate of Cl during coal combustion was highly correlated with temperature and volatile matter, and most Cl transferred into the flue gas. Dust collector and wet flue gas devices equipped in the CFPPs were robust to remove Cl in particulate phase, and the fabric filter showed higher removal efficiency compared with the electrostatic precipitator.
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The migration and release characteristics of chlorine during coal combustion in coal-fired power plants

Fund Project: Supported by Anhui Postdoctoral Fund (2019B332), Domestic Visiting and Training Program for Outstanding Young Talents in Colleges and Universities (gxgnfx2019057), Natural Science Foundation of Anhui Province (2008085MD119) and National Key Research and Development Program of China(2016YFC0201600).

Abstract: Based on the contents of chlorine (Cl) determined by ion chromatography, this study systematically investigated the levels, occurrence and transformation of Cl in coal and its combustion products from four coal-fired power plants (CFPPs) in Anhui province. Results indicated that Cl content in coals was low, which positively correlated with the contents of lead, mercury, and total sulfur, whereas weakly correlated with the moisture and ash yield.The releasing rate of Cl during coal combustion was highly correlated with temperature and volatile matter, and most Cl transferred into the flue gas. Dust collector and wet flue gas devices equipped in the CFPPs were robust to remove Cl in particulate phase, and the fabric filter showed higher removal efficiency compared with the electrostatic precipitator.

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