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

Wu, Jihuai; Zhang, Jin Hong; Zheng, Shuai; Zhang, Yan Yan; Pan, Wei; Ren, Jian; Song, Chen; Ding, Kai; Zhang, Tai

doi:10.4028/www.scientific.net/amr.268-270.351

Cited by 3 publications

(2 citation statements)

References 10 publications

(9 reference statements)

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“…Existing speciation of mercury in coal was affected by many factors, such as coal rank, depositional environment of coal formation process and the late coal, structural factors and so on. Even at the same coal mine, the mercury contents were different as coal seam changes [6] . The experiment measured 5 kinds of coal samples are from coal mine domestic.…”

Section: Resultsmentioning

confidence: 97%

Research on the Correlation between Mercury and Sulfur Content in Coals

Liu

Zhang

Zhao

et al. 2012

AMR

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To reduce mercury emission in the flue gas at coal-fired power plant, it is very important and meaningful to research the mercury content and the existing status of other elements in coal. In this paper, mercury and sulfur content including their relevant relations of existing speciations from five coal samples were studied. Experimental method was based on U.S. EPA Method 7471 and experimental apparatus was automatic mercury analysis system Hydra AA. The results showed that in these 5 coal samples, the range of mercury content was from 0.284μg/g to 0.663μg/g and the average content was 0.401μg/g. The range of sulfur content was from 0.688% to 5.546% and the average content was 2.30% . The existing status of mercury and sulfur in coal was very complex. Under normal circumstances, when there was high sulfur content in coal, there was also high mercury content. However, the low sulfur coal may be of high mercury content.

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Section: Resultsmentioning

confidence: 97%

Research on the Correlation between Mercury and Sulfur Content in Coals

Liu

Zhang

Zhao

et al. 2012

AMR

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“…The concentration, distribution and occurrence of mercury in coals have attracted the attention of many scholars. Zheng [12], Dai [13], Wu [14], Huang [15], Song [16], Gao [17], and Wang [18] et al have studied mercury content in coals from different regions successively. However, there are relatively few studies on the distribution of mercury in coals based on the national scale.…”

Section: Introductionmentioning

confidence: 99%

Concentration, distribution and occurrence of mercury in Chinese coals

et al. 2021

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Mercury in coals is one of the important sources of atmospheric mercury, which is potentially harmful to the ecological environment. Based on the data of 970 coal samples, the concentration, spatial distribution and occurrence of mercury in Chinese coals were analyzed. The main conclusions are as follows: The distribution of mercury concentration in Chinese coalfields is uneven; medium and high mercury coals are mainly distributed in southwest China and eastern Inner Mongolia. The mercury concentrations in various coal-forming periods are as follows: K (0.320 mg/kg) > P2 (0.220 mg/kg) > C3 (0.179 mg/kg) > J (0.177 mg/kg) > D (0.165 mg/kg) > P1 (0.136 mg/kg) > C1 (0.090 mg/kg) > E (0.086 mg/kg) > T3 (0.066 mg/kg). The mercury concentrations in different coal ranks are as follows: Lignite (0.164 mg/kg), long flame coal (0.078 mg/kg), non-caking coal (0.256 mg/kg), weakly caking coal (0.086 mg/kg), gas coal (0.151 mg/kg), fat coal (0.122 mg/kg), coking coal (0.171 mg/kg), lean coal (0.393 mg/kg), meagre coal (0.161 mg/kg), anthracite (0.160 mg/kg). Sulfide bound state is the main form of mercury in coals, and pyrite is the main occurrence medium.

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