Experimental Study on the Relationship between Mercury Enrichment Coal and the Depth of Coalseam

Abstract:

The mercury concentration in the coals from Datong and Xiaoyi, Shanxi has been measured to study the relationship between mercury enrichment in coal and coalseam depth. Ten samples were researched, of which 7 coal and rock samples from the main coalseam and the places around it were collected at a miner in Datong city, and 3 coal samples from three coalseams at a miner in Xiaoyi city. The mercury concentration in the coal and rock samples was measured with US EPA Method7471, which is a standard method recommended by the US EPA. The results show that the mercury enrichment in coal is higher than that in rock in the same conditions, and the mercury concentration in the longer-buried coal is higher than that of the shorter-buried. However, the mercury concentration in coal with depth has no definite linear correlation, varying in different coal fields.

• Periodical: Advanced Materials Research (Volumes 268-270)
• Pages: 351-355
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.268-270.351
• Online since: July 2011
• Authors: Jiang Wu, Jin Hong Zhang, Shuai Zheng, Yan Yan Zhang, Wei Guo Pan, Jian Xing Ren, Song Chen, Kai Ding, Tai Zhang
• Keywords: Depth of Coalseam, Mercury Enrichment, Mercury in Coal

References

[1] Qinghua Chi. Mercury in the crust, rocks and loose sediments, geochemistry, 2004, 33 (6), pp.641-648.

[2] Jiang Wu, Yan Cao, Weiguo Pan, et al., Evaluation of Mercury Sorbents in a Lab-Scale Multiphase Flow Reactor, a Pilot-Scale Slipstream Reactor and Full-Scale Power Plant, Chemical Engineering Science, 2008, 63, (3), pp.792-780.

DOI: 10.1016/j.ces.2007.09.041

[3] Yan Cao, Hongcang Zhou, Jiang Wu, et al., Studies of the fate of sulfur trioxide in coal-fired utility boilers based on modified selected condensation methods, Environ. Sci. Technol., 2010, 44, pp.3429-3434.

DOI: 10.1021/es903661b

[4] Xinbin Feng, Yetang Hong, Bing Hong, et al., Occurrence of mercury in coal research Mineralogy, Petrology and Geochemistry, 2001, 4, pp.71-78.

[5] Dai S. F., Ren D. Y., Tang Y. G., et al., Concentration and distribution of element s in Late Permian coals from western Guizhou Province, China, International Journal of Coal Geology, 2005, 61, pp.119-137.

DOI: 10.1016/j.coal.2004.07.003

[6] Liugen Zheng, Guijian Liu, Cuicui Qi, et al., China's coal geochemistry of mercury in the environment, China University of Science and Technology reported, 2007, 8, pp.953-963.

[7] Fusheng Wei, Jingsheng Chen, Yanyu Wu, et al. Environmental background values of Chinese soil, Environmental Science, 1991, 12 (4), pp.12-19.

[8] Luo K. L. , Ren D. Y., Xu L. R., et al., Fluorine content and distribution pattern in Chinese coals International Journal of Coal Geology, 2004, 57, pp.143-149.

DOI: 10.1016/j.coal.2003.10.003

[9] Dai S. F., Han D. X., Chou C. L., Petrography and geochemistry of the Middle Devonian coal from Luquan, Yunnan Province, China, Fuel, 2006b, 85, pp.456-464.

DOI: 10.1016/j.fuel.2005.08.017

[10] Wang D Y, He L , Wei S Q , et al. Estimation of mercury emission from different sources to atmosphere in Chongqing , China, Science of the Total Environment, 2006, 366, pp.722-728.

DOI: 10.1016/j.scitotenv.2005.09.054

[11] Juwarkar A. A. ，Jambhulkar H. P., Phyto remediation of coal mine spoil dump through integrated biotechnological approach, Bioresour. Technol., 2007, 9, p.60.

DOI: 10.1016/j.biortech.2007.09.060

[12] Khvostikov V.A., Telen G.F., Grazhuleness. Determination of Mercury by Nondispemive At Ionic Fluorescence Spectrometry, Journal of Analytical Chemistry, 2003, 58(6), pp.519-523.

[13] Liugen Zheng, GuiJian Liu, Cuicui Qi, Ying Zhang, et al. Huaibei Coal Occurrence of mercury in coal, Earth Science - China University of Geosciences, 2007, 32 (2), pp.279-284.

[14] Feng X.B., Hong Y. T.,. Modes of occurrence of mercury in coals from Guizhou, People's Republic of China, Fuel , 1999, 78, pp.1181-1188.

DOI: 10.1016/s0016-2361(99)00077-0