| BUZEK, F., B. CEJKOVA, I. JACKOVA, Eva GERŠLOVÁ, K. MACH, M. LHOTKA, J. CURIK a F. VESELOVSKY. Secondary processes on coal deposits change the emission of greenhouse gases. International Journal of Coal Geology. Elsevier, 2022, roč. 262, October, s. 1-11. ISSN 0166-5162. Dostupné z: https://dx.doi.org/10.1016/j.coal.2022.104102. |
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@article{2247586,
author = {Buzek, F. and Cejkova, B. and Jackova, I. and Geršlová, Eva and Mach, K. and Lhotka, M. and Curik, J. and Veselovsky, F.},
article_number = {October},
doi = {http://dx.doi.org/10.1016/j.coal.2022.104102},
keywords = {Coal; Opencast coal mine; Coal bed methane; Secondary gas production; Methane and carbon dioxide emissions; Carbon and hydrogen isotopes},
language = {eng},
issn = {0166-5162},
journal = {International Journal of Coal Geology},
title = {Secondary processes on coal deposits change the emission of greenhouse gases},
url = {https://www.sciencedirect.com/science/article/pii/S0166516222001781},
volume = {262},
year = {2022}
}
TY - JOUR
ID - 2247586
AU - Buzek, F. - Cejkova, B. - Jackova, I. - Geršlová, Eva - Mach, K. - Lhotka, M. - Curik, J. - Veselovsky, F.
PY - 2022
TI - Secondary processes on coal deposits change the emission of greenhouse gases
JF - International Journal of Coal Geology
VL - 262
IS - October
SP - 1-11
EP - 1-11
PB - Elsevier
SN - 01665162
KW - Coal
KW - Opencast coal mine
KW - Coal bed methane
KW - Secondary gas production
KW - Methane and carbon dioxide emissions
KW - Carbon and hydrogen isotopes
UR - https://www.sciencedirect.com/science/article/pii/S0166516222001781
N2 - The opencast Bilina coal mine (Czech Republic) produces eight million tons of subbituminous coal per year. To evaluate greenhouse gas emissions from the mine, we measured the chemical and isotopic composition of gases released from fresh coals using the canister method and after coal crushing and milling. The 813C values of the released methane (CH4) and carbon dioxide (CO2) corresponded to their biogenic origin (813C (CH4)-70 %o to-55 %o vs. VPDB, 82H -275 %o to-260 %o vs. VSMOW, 813C (CO2)-10 %o to-16 %o vs. VPDB). The findings revealed that secondary biogenic gas production replaced original coal bed gases and the excavated coal is rich in CO2 (0.615 m3 ton-1), but very low in CH4 (0.09 m3 ton-1). Additionally, most of the secondary CH4 was released before excavation. The loss of CH4 (0.235 m3 ton-1) was calculated back from the isotope fractionation of residual CO2. High CO2 emission increased its atmospheric concentration in the mine (570-2000 ppm).
ER -
BUZEK, F., B. CEJKOVA, I. JACKOVA, Eva GERŠLOVÁ, K. MACH, M. LHOTKA, J. CURIK a F. VESELOVSKY. Secondary processes on coal deposits change the emission of greenhouse gases. \textit{International Journal of Coal Geology}. Elsevier, 2022, roč.~262, October, s.~1-11. ISSN~0166-5162. Dostupné z: https://dx.doi.org/10.1016/j.coal.2022.104102.
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