Coal Mine Methane Emissions and Utilization Potential for the Zonguldak Coal Basin, Turkey
Coal Mine Methane (CMM) is a significant safety concern for coal mining activities in the Zonguldak Coal Basin, Turkey. The high level of methane release at coal mines in the basin increase the risk of accidents, affected mine productivity and clearly reduced coal production. Despite the long history of mining in gassy seams in the basin, very little data is available on the in-situ parameters related to CMM emissions. Historical CMM emission trends between 1980 and 2020 from coal mines in the basin were analyzed to quantify the total methane emissions, power generation potential and GHG reduction opportunities. The results show that the total methane emissions from the mines in the basin has been declining over the years with the decreasing coal production and nearly 2.28 billion m 3 of CMM has been released to the atmosphere during the concerned period, and if the mines will produce coal at their historical rate a power generation potential of 6.63 MWe would be available. Moreover, an average of 55.7 million tons of methane (almost 692,000 tons of CO 2 e) might be avoided yearly in the mines by the utilization of available methane mitigation technologies. The effects of coal production, average mining depth and gas content of mined coal seams on methane emissions were also investigated and discussed in detail. The results show that CMM emission rates from the mines depend primarily on the coal production rate and mining depth. The basin-specific emission factors, which can be used to accurately determine high-emission regions, assisting decision-makers in developing emission-reduction strategies and improve inventories of methane emissions from underground coal mining, were calculated from historical measurement data. The average methane emission factors calculated in this study for coal mines in the basin ranged from 7.24 m 3 /t to 21.66 m 3 /t, and are more representative than the default values recommended by the Intergovernmental Panel on Climate Change (IPCC). The findings of this work will fill the important data gap in the estimation of methane emissions from underground coal mining in Turkey, especially in the Zonguldak coal basin, and will provide a framework for future research on methane emissions from underground coal mines at various sizes
Year of publication: |
[2022]
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Authors: | Fisne, Abdullah ; Rend, Ata Ramazani ; Esen, Olgun ; Özer, Samet Can ; Soylu, Anıl ; Bozdoğan, Samet ; Barış, Kemal |
Publisher: |
[S.l.] : SSRN |
Subject: | Türkei | Turkey | Kohlenbergbau | Coal mining | Kohle | Coal |
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