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Mercury speciation and its emissions from a 220 MW pulverized coal-fired boiler power plant in flue gas

  • Presented at the 6th Korea-China Workshop on Clean Energy Technology
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Abstract

Distributions of mercury speciation of Hg0, Hg2+ and HgP in flue gas and fly ash were sampled by using the Ontario Hydro Method in a 220 MW pulverized coal-fired boiler power plant in China. The mercury speciation was varied greatly when flue gas going through the electrostatic precipitator (ESP). The mercury adsorbed on fly ashes was found strongly dependent on unburnt carbon content in fly ash and slightly on the particle sizes, which implies that the physical and chemical features of some elemental substances enriched to fly ash surface also have a non-ignored effect on the mercury adsorption. The concentration of chlorine in coal, oxyge nand NO x in flue gas has a positive correlation with the formation of the oxidized mercury, but the sulfur in coal has a positive influence on the formation of elemental mercury.

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Authors and Affiliations

  1. Thermoenergy Engineering Research Institute, Southeast University, Nanjing, 210096, China

    Xianghua Yang, Yufeng Duan, Liguo Yang & Yiman Jiang

  2. Thermal Power Engineering Department, Hohai University, Changzhou, 213022, China

    Xianghua Yang

  3. Thermal Engineering Department, Tsinghua University, Beijing, 100084, China

    Yuqun Zhuo, Lei Chen, Liang Zhang & Xuchang Xu

Authors
  1. Xianghua Yang
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  2. Yuqun Zhuo
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  3. Yufeng Duan
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  4. Lei Chen
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  5. Liguo Yang
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  6. Liang Zhang
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  7. Yiman Jiang
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  8. Xuchang Xu
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Corresponding author

Correspondence to Yufeng Duan.

Additional information

This work was presented at the 6th Korea-China Workshop on Clean Energy Technology held at Busan, Korea, July 4–7, 2006.

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Yang, X., Zhuo, Y., Duan, Y. et al. Mercury speciation and its emissions from a 220 MW pulverized coal-fired boiler power plant in flue gas. Korean J. Chem. Eng. 24, 711–715 (2007). https://doi.org/10.1007/s11814-007-0031-9

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  • DOI: https://doi.org/10.1007/s11814-007-0031-9

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