Mass Balance and Isotope Characteristics of Mercury in Two Coal-Fired Power Plants in Guizhou, China

Zhong Gen Li; Xin Bin Feng; Guang Hui Li; Run Sheng Yin; Ben Yu

doi:10.4028/www.scientific.net/AMR.518-523.2576

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 518-523Mass Balance and Isotope Characteristics of...

Mass Balance and Isotope Characteristics of Mercury in Two Coal-Fired Power Plants in Guizhou, China

Abstract:

Mercury distribution and stable isotope composition in solid samples of two coal-fired power plants in Guizhou province were determined. Results shown electrostatic precipitator (ESP) has mercury removal efficiency between 29.53% to 58.41%, and wet flue gas desulfurization (WFGD) between 12.29% to 58.60%, mercury removal efficiency of ESP and WFGD mainly depends on the coal properties. Most mercury (70% to 88%) in coal was captured by the combination of ESP+WFGD. Mercury in fly ash and gypsum were much heavier in isotope composition compared to the coal, hints mercury escaped into atmosphere was enriched in lighter mercury isotopes.

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Periodical:

Advanced Materials Research (Volumes 518-523)

Pages:

2576-2579

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.518-523.2576

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Online since:

May 2012

Authors:

Zhong Gen Li, Xin Bin Feng, Guang Hui Li, Run Sheng Yin, Ben Yu

Keywords:

Coal-Fired Power Plant, Hg Stable Isotope, Mass Balance, Mercury, Removal Efficiency

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