Tests of methane desorption and emission from samples of hard coal in the context of mine closures through flooding

Krause, E.; Karbownik, Marcin

doi:10.46873/2300-3960.1098

Cited by 1 publication

(2 citation statements)

References 0 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The highest methane emissions are observed during current mining works and one month after work liquidation (e.g. Krause & Karbownik 2019). The most intense and constant emission of methane occurs during mining and related works in longwalls and in the vicinity of gobs.…”

Section: Methane Conditions and The Layoutmentioning

confidence: 99%

“…Frączek & Frączek 2004, Karacan et al 2011, Szlązak et al 2014, Szlązak 2015. Beside ventilation air methane and degassing, CH 4 can be captured from virgin (unmined) coal seams -coal bed methane (CBM) (90-98% of CH 4 ) or from abandoned coal workings when methane is still being emitted from diffuse vents, cracks or fissures (Kozłowski & Grębski 1982, Honysz 2015, Duda & Krzemień 2018, Krause & Karbownik 2019, Kholod et al 2020. The methane emitted or produced during mining activities (CMM) can be utilised in many ways, providing benefits such as: reducing greenhouse gas emissions, increasing mine safety or delivering valuable fuel for power and heat generation.…”

Section: Ventilation Air Methane Emission Outgassing and Specific Methane Emissionmentioning

confidence: 99%

See 1 more Smart Citation

Changes in the methane emissions and hard coal output in the Brzeszcze mine (the Upper Silesian Coal Basin, Poland)

Dreger

2020

geol

View full text Add to dashboard Cite

The paper presents the variability of methane emissions in mining excavations in the Brzeszcze mine (Poland) against the background of hard coal output, geological and mining factors. The geological structure of the Upper Silesian Coal Basin (USCB) is very diverse. The Brzeszcze coal deposit is located close to the large and permeable Jawiszowice fault which increases the methane hazard during mining activities performed close to this fault. The overall decrease in hard coal output (1988–2018) has coincided with a rapid increase in methane emissions (1997–2018). Throughout the study period, hard coal output decreased threefold from 3.9 to 1.2 million Mg annually. Coal extraction in high methane content beds (e.g. 510, 405/1, 364, 352) increases the total methane (CH4) emission into mining excavations, aggravating the methane hazard due to the high explosiveness of the gas. To protect miners, coal workings need to be continuously ventilated, taking the harmful gas out of the mine (ventilation air methane emission) or methane needs to be captured by underground methane systems (degassing). Every year, over 34 million m3 of CH4 is captured by the drainage systems and over 70 million m3 CH4 (average) is discharged through ventilation shafts into the atmosphere. The presence of the large, permeable regional dislocation, the Jawiszowice fault zone, shaped the methane concentration in the fault vicinity, when the highest methane emissions during coal mining was studied.

show abstract

Section: Methane Conditions and The Layoutmentioning

confidence: 99%

Section: Ventilation Air Methane Emission Outgassing and Specific Methane Emissionmentioning

confidence: 99%

Changes in the methane emissions and hard coal output in the Brzeszcze mine (the Upper Silesian Coal Basin, Poland)

Dreger

2020

geol

View full text Add to dashboard Cite

show abstract

Tests of methane desorption and emission from samples of hard coal in the context of mine closures through flooding

Cited by 1 publication

References 0 publications

Changes in the methane emissions and hard coal output in the Brzeszcze mine (the Upper Silesian Coal Basin, Poland)

Changes in the methane emissions and hard coal output in the Brzeszcze mine (the Upper Silesian Coal Basin, Poland)

Contact Info

Product

Resources

About