Mercury concentration in coal—unraveling the puzzle

Toole-O'Neil, B.; Tewalt, Susan J.; Finkelman, Robert B.; Akers, D.J.

doi:10.1016/s0016-2361(98)00112-4

Cited by 125 publications

(44 citation statements)

References 9 publications

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“…It illustrates differences in technological characteristics of coal cleaned in different coal preparation plants. The densities of heavy media in Polish coal preparation plants amount mainly 1.6-1.7 g/cm 3 , although there are exceptions. In the first case mercury concentrates in fraction +1.7 g/cm 3 , while in the second case in the fraction -1.7 g/cm 3 .…”

Section: Resultsmentioning

confidence: 99%

“…The densities of heavy media in Polish coal preparation plants amount mainly 1.6-1.7 g/cm 3 , although there are exceptions. In the first case mercury concentrates in fraction +1.7 g/cm 3 , while in the second case in the fraction -1.7 g/cm 3 . The arithmetic mean mercury content in coarse and medium coal size fractions amounts 68.9 Pg/kg (Fig.…”

Section: Resultsmentioning

confidence: 99%

“…[1][2][3][4]. Determination of the mercury content in raw coal and assessment of potential reduction of mercury in used coal have become the crucial topic for coal dependent economies.…”

Section: Introductionmentioning

confidence: 99%

“…Coal cleaning is regarded as one of the methods of mercury in coal reduction. This method is so called precombustion [3][4][5][6][7][8][9]. Thus, coal cleaning, which reduces the ash in coal and increases the calorific value of the coal fuel, has gained additional significance.…”

Section: Introductionmentioning

confidence: 99%

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Separation of mercury in industrial processes of Polish hard steam coals cleaning

Wierzchowski

Pyka

2016

E3S Web Conf.

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Abstract. Coal use is regarded as one of main sources of anthropogenic propagation of mercury in the environment. The coal cleaning is listed among methods of the mercury emission reduction. The article concerns the statistical assessment of mercury separation between coal cleaning products. Two industrial processes employed in the Polish coal preparation plants are analysed: coal cleaning in heavy media vessels and coal cleaning in jigs. It was found that the arithmetic mean mercury content in coarse and medium coal size fractions for clean coal from heavy media vessels, amounts 68.9 Pg/kg, and most of the results lay below the mean value, while for rejects it amounts 95.5 Pg/kg. It means that it is for around 25 Pg/kg greater than in the clean coal. The arithmetic mean mercury content in raw coal smalls amounts around 118 Pg/kg. The cleaning of smalls in jigs results in clean coal and steam coal blends characterized by mean mercury content 96.8 Pg/kg and rejects with mean mercury content 184.5 Pg/kg.

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Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

“…[1][2][3][4]. Determination of the mercury content in raw coal and assessment of potential reduction of mercury in used coal have become the crucial topic for coal dependent economies.…”

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Separation of mercury in industrial processes of Polish hard steam coals cleaning

Wierzchowski

Pyka

2016

E3S Web Conf.

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“…Due to the huge and growing consumption of petroleum, the risk of mercury emissions from petroleum consumption should be considered. The mean concentration of mercury in coal is about 200 ng g À 1 [30], while the mean concentration is 1500 ng g À 1 for crude oil [6]. It indicates that the petroleum contains a higher level of mercury and might cause higher mercury emissions.…”

Section: Estimation the Mercury Emissions From Petroleum Consumptionmentioning

confidence: 98%