Browsing by Subject "methane emission"

Now showing 1 - 5 of 5

Access status: Open Access ,
An analysis of the potential use of methane from hard coal mines in a trigeneration system to reduce emissions into the atmosphere
(Wydawnictwa AGH, 2024) Borowski, Marek; Zwolińska-Glądys, Klaudia; Szmuk, Andrzej
Greenhouse gases and their emissions are issues that are being increasingly discussed due to climate change. Next to carbon dioxide, methane is considered one of the most important greenhouse gases. Reducing methane emissions could result in noticeable environmental benefits in a short time. Anthropogenic emissions constitute approximately 60 of total methane emissions and thus solutions to reduce emissions of this gas are most often sought in this sector. The subject of the study is the methane capture system in the “Pniówek” mine, belonging to the Upper Silesian Coal Basin (southern Poland), and the potential for methane management using a trigeneration system. The article discusses the utilization of methane from hard coal mines to reduce its emissions into the atmosphere and as a profitable solution to use the emitted gas. The authors describe a trigeneration system in which methane from the mine is burned in gas engines and used to produce electricity, heat, and cooling energy. This allows for reducing methane emissions into the atmosphere while increasing the efficiency of coal use. The article shows the results of measurements carried out in a hard coal mine in Poland. The presented example indicates the ecological and economic benefits resulting from the use of a trigeneration system.
Access status: Restricted ,
Analiza zmienności strumienia emisji metanu i dwutlenku węgla rejestrowanego z wykorzystaniem przenośnego analizatora w wybranym rejonie polskiej części Karpat zewnętrznych
(Data obrony: 2017-07-11) Mieszczanek, Dominik
Wydział Geologii, Geofizyki i Ochrony Środowiska
W pracy przedstawiono wyniki pomiarów próbek gazu glebowego oraz pomiaru strumienia emisji metanu. Badania wykonano przy użyciu metody sondy geochemicznej oraz metody komór statycznych na 96 stanowiskach na wybranym obszarze zachodnich Karpat zewnętrznych. Pobrane próbki badano z wykorzystaniem chromatografii gazowej pod kątem występowania gazów węglowodorowych oraz gazów towarzyszących (O2, N2, CO2) . W wyniku analizy statystycznej stwierdzono, iż największy udział wśród składników węglowodorowych ma metan, którego stężenie waha się w granicach od 1.11 do 2100 ppm, a poziom jego emisji badany nad płytkim otworem (0.6 m) oscyluje w granicach od -1.0 do -71.5 mg/m2/d. Przeprowadzona analiza pozwoliła na wstępną ocenę obecności i określenie charakteru wgłębnych akumulacji węglowodorów, a także procesów odpowiedzialnych za migrację składników lotnych do atmosfery.
Access status: Open Access ,
Badania wydzielania metanu do wyrobisk chodnikowych drążonych kombajnami w pokładach węgla
(2006) Szlązak, Nikodem; Borowski, Marek
This article characterizes the sources of methane emission to a heading. Dependencies, on whose basis the stream of methane emitted from extracted coal, surface area of coal walls and face of heading can be calculated, are given. The results of measurements of methane emission to headings with continuous miners of very gassy mines, which were ventilated by means of overlap auxiliary ventilation system (main forcing duct and short exhaust duct with a dust seperator) are presented. On the basis of those results the co-efficient characterizing velocity of methane emission from surface area of coal wall and intensity of emission from exposed surface area of coal was determined. The values of those co-efficients are dependent on average methane content of coal seam (which was determined during underground drivages). The percentage contribution of face zone of heading comprising 50 m from the face in total volumetric methane flow was also determined. On the basis of those measurements it can be concluded that this zone includes 65% of total methane emission into a heading.
Access status: Open Access ,
Changes in the methane emissions and hard coal output in the Brzeszcze mine (the Upper Silesian Coal Basin, Poland)
(Wydawnictwa AGH, 2020) Dreger, Marcin
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 ($CH_{4}$) 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 m$^{3}$ of $CH_{4}$ is captured by the drainage systems and over 70 million m$^{3}$ $CH_{4}$ (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.
Access status: Open Access ,
Oil and gas industry challenges in light of the new EU methane law
(Wydawnictwa AGH, 2025) Łukańko, Łukasz; Wartak, Joanna
The implementation of the new European Union methane regulation presents significant challenges for oil and gas companies, requiring compliance with stricter emission control measures. The regulation mandates systematic monitoring, transparent reporting, and the reduction of methane leaks throughout the supply chain. Adherence to these requirements necessitates substantial investments in advanced detection technologies, infrastructure upgrades, and operational modifications to minimize emissions effectively. Moreover, companies must contend with increased compliance costs and the risk of financial penalties for non-compliance. Beyond the financial implications, these regulatory changes may influence corporate strategies, driving a transition toward more sustainable practices, such as methane capture and utilization. This article examines the primary challenges and strategic responses of oil and gas companies in adapting to the evolving regulatory framework during oil and gas exploration.