Test and Research for Mercury Emission of Boilers in 700 MW Units

Fa Sheng Liu; Yong Lu Zhong; Rui Xu; Lin Guo Chen; Yong Jun Xia

doi:10.4028/www.scientific.net/AMM.672-674.1514

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vols. 672-674Test and Research for Mercury Emission of Boilers...

Test and Research for Mercury Emission of Boilers in 700 MW Units

Abstract:

In this paper, the conversion process and the existing forms of mercury in the course of coal firing are first analyzed, and different methods to measure mercury are introduced; To assess the mercury emission levels of boilers in large power plants, through testing the mercury content in combustion products of the boiler in 700 MW unit under different loads in one power plant of Jiangxi Province, we analyzed the formation distribution of mercury emissions and the effect of low temperature economizer on the mercury concentration before and after the ESP, and acquired the mercury emission characteristics of 700 MW boiler. In study, we found that mercury in the coal burnt in 700 MW boiler was mainly discharged in the form of gas, with a small amount existing in burnt solids. The change of gaseous mercury before and after the ESP is not obvious, but the concentration of bivalent mercury is higher than that of zero-valent mercury; and more than 90% of the particulate mercury is removed. The low temperature economizer in operation can obviously reduce the concentration of mercury in flue gas at the ESP outlet by 30.8%.

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Periodical:

Applied Mechanics and Materials (Volumes 672-674)

Pages:

1514-1518

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.672-674.1514

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Online since:

October 2014

Authors:

Fa Sheng Liu*, Yong Lu Zhong, Rui Xu, Lin Guo Chen, Yong Jun Xia

Keywords:

Boiler, Emission Characteristics, Low Temperature Economizer, Mercury

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* - Corresponding Author

References

[1] Wang Qichao, Shen Wenguo, Ma Zhuangwei. Estimation of Mercury Emission from Coal Fired in China [J]. China Environmental Science, （1999）194, pp.318-321.

Google Scholar

[2] National Coal Standardization Technology Committee. 15224. 2 GB/T - 2010, Classification for Coal Quality Based on Sulfur Content [S]. Beijing: China Standard Press, (2010).

Google Scholar

[3] Sun Limei, Bai Yanying. Analysis of Form Distribution and Migration Behavior of Mercury in the Process of Coal Burning in Power Plants [J]. Journal of Clean Coal Technology, (2008), 14 (5) , pp.93-95.

Google Scholar