Secondary processes on coal deposits change the emission of greenhouse gases
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60461373%3A22310%2F22%3A43933989" target="_blank" >RIV/60461373:22310/22:43933989 - isvavai.cz</a>
Alternative codes found
RIV/00216224:14310/22:00128088 RIV/00025798:_____/22:00000114
Result on the web
<a href="https://www.sciencedirect.com/science/article/pii/S0166516222001781?via%3Dihub" target="_blank" >https://www.sciencedirect.com/science/article/pii/S0166516222001781?via%3Dihub</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1016/j.coal.2022.104102" target="_blank" >10.1016/j.coal.2022.104102</a>
Alternative languages
Result language
angličtina
Original language name
Secondary processes on coal deposits change the emission of greenhouse gases
Original language description
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 δ13C values of the released methane (CH4) and carbon dioxide (CO2) corresponded to their biogenic origin (δ13C (CH4) −70 ‰ to −55 ‰ vs. VPDB, δ2H − 275 ‰ to −260 ‰ vs. VSMOW, δ13C (CO2) -10 ‰ to −16 ‰ 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). © 2022
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
10500 - Earth and related environmental sciences
Result continuities
Project
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Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Others
Publication year
2022
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
INTERNATIONAL JOURNAL OF COAL GEOLOGY
ISSN
0166-5162
e-ISSN
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Volume of the periodical
262
Issue of the periodical within the volume
262
Country of publishing house
NL - THE KINGDOM OF THE NETHERLANDS
Number of pages
11
Pages from-to
nestránkováno
UT code for WoS article
000870199600002
EID of the result in the Scopus database
2-s2.0-85138461670