Hydrofobowość węgla kamiennego z zagłębia węglowego Ostrava-Karviná

• Autorzy: Koval L. , Duraj M. , Raclavska H. , Skrobankova H. , Cihalova S.

Warianty tytułu

EN

Hydrophobicity of Black Coal from Ostrava-Karviná Coal District (Czech Republic)

• Języki publikacji: PL EN

Abstrakty

PL

Właściwości hydrofobowe/hydrofilowe węgla znacząco wpływają na wartość wilgoci, która jest bardzo istotnym parametrem z punktu widzenia wykorzystania węgla do produkcji energii. Hydrofobowość została zbadana dzięki pomiarom kąta zwilżania. Dowiedziono, że w przypadku węgla kamiennego właściwości hydrofilowe wzrastają wraz ze wzrostem uwęglenia. Z drugiej strony, związek ten nie znalazł odbicia w przypadku niższego stopnia uwęglenia. Wartość kąta zwilżania jest warunkowana przez zawartość części lotnych i zawartość popiołu. Zależność kąta zwilżania od głębokości wydobycia surowca została również udowodniona. Wartość kąta zwilżania maleje wraz z głębokością.

EN

Hydrophobic/hydrophilic properties of coal influence significantly value of moisture which represents very important parameter from the point of utilization of coal in energy production. Hydrofobicity were studied by means of contact angle measurements. It was proved that for black coal the hydrofilic properties increase with coalification. On the contrary, this relationship was not found for coals with lower degree of coalification. The value of contact angle is influenced by content of volatile combustibles and content of ash. The dependence of contact angle on the depth of mining was also proved. The value of contact angle decreases with depth.

Słowa kluczowe

PL

kąt zwilżania; absorpcja wody; stopień uwęglenia; witrynit

EN

contact angle; water absorption; coal; degree of codification; vitrinite

• Wydawca: Polskie Towarzystwo Przeróbki Kopalin
• Czasopismo: Inżynieria Mineralna
• Rocznik: 2013
• Tom: R. 14, nr 1
• Strony: 3--10
• Opis fizyczny: Bibliogr. 22 poz., rys., wykr., tab.

Twórcy

autor

Koval L.

• Institute of Environmental Engineering, Faculty of Mining and Geology, VŠB – Technical University of Ostrava; 17. listopadu 15, 708 33 Ostrava – Poruba, Czech Republic

autor

Duraj M.

• Institute of Geological Engineering, Faculty of Mining and Geology, VŠB – Technical University of Ostrava; 17. listopadu 15, 708 33 Ostrava – Poruba, Czech Republic

autor

Raclavska H.

• Institute of Geological Engineering, Faculty of Mining and Geology, VŠB – Technical University of Ostrava; 17. listopadu 15, 708 33 Ostrava – Poruba, Czech Republic

autor

Skrobankova H.

• Institute of Geological Engineering, Faculty of Mining and Geology, VŠB – Technical University of Ostrava; 17. listopadu 15, 708 33 Ostrava – Poruba, Czech Republic

autor

Cihalova S.

• Institute of Environmental Engineering, Faculty of Mining and Geology, VŠB – Technical University of Ostrava; 17. listopadu 15, 708 33 Ostrava – Poruba, Czech Republic

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