Adsorption characteristics of bituminous coal seams in Zonguldak Basin

Olgun Esen*, Samet Can Özer, Abdullah Fişne

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Özet

Zonguldak Coal Basin, located on the Black Sea coast, is the main part of the Upper Carboniferous bituminous coal basin of Turkey. Much of the bituminous coal mining has thus been concentrated in the Zonguldak Basin. The estimated coal reserve, carried to 1200 m under sea level, is about 1.32x109 tons of coal in this basin. 57 coal seams have been identified and 38 are workable with their thickness varying from 0.7-10 m and dips from 0-90°. The most important coal seams are the Cay and Acilik seams having average thickness of 6 and 4.5 m, respectively. Furthermore, the Sulu, Hacimemis, Domuzcu and Buyuk seams having an average thickness ranging from 1.5 m to 2.5 m are the other coal seams which are regarded as important for coal production. The aim of this study is to determine the gas adsorption characteristics of coal seams in the Zonguldak Basin. A number of samples were collected from 8 different seams. The adsorption characteristics of samples were measured and attempts made to correlate the results with different coal properties determined with the help of proximate analyses. Methane adsorption isotherms were measured at constant temperature of 25°C at different gas pressures up to 50 bar and the results were discussed in relation to the gas capacities of coal seams. Langmuir equation was used to interpret the adsorption isotherms. Results of the interpretation of the adsorption isotherms indicate that Langmuir (monolayer) adsorption capacity of coal seams varies between 10.3 m3/t and 18.2 m3/t. Although the respective data are highly scattered, a certain correlation could be defined between different coal properties and the adsorption capacity. The most apparent correlation is observed between the ash content and the gas adsorption capacity. The trends between Langmuir adsorption capacity and ash content are generally in accordance with the trends observed in other coal basins.

Orijinal dilİngilizce
Yayın durumuYayınlandı - 2016
Etkinlik33rd Annual International Pittsburgh Coal Conference: Coal - Energy, Environment and Sustainable Development, PCC 2016 - Cape Town, South Africa
Süre: 8 Ağu 201612 Ağu 2016

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???event.eventtypes.event.conference???33rd Annual International Pittsburgh Coal Conference: Coal - Energy, Environment and Sustainable Development, PCC 2016
Ülke/BölgeSouth Africa
ŞehirCape Town
Periyot8/08/1612/08/16

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Publisher Copyright:
© 2016 International Pittsburgh Coal Conference. All rights reserved.

Finansman

This study was carried out as part of Scientific and Technological Research Council of Turkey (TUBITAK) founded project “Determination of the Gas Contents and Gas Desorption Characteristics of the Coal Seams in Zonguldak Hardcoal Basin”, Grant No. 113M460. The authors gratefully acknowledge to the Scientific and Technological Research Council of Turkey (TUBITAK) for funding this research.

FinansörlerFinansör numarası
TUBITAK113M460
Türkiye Bilimsel ve Teknolojik Araştirma Kurumu

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