Coal production is accompanied by the release of methane, which for security reasons is removed from the mine. Annually in Poland into the atmosphere with ventilation air is emitted around 580 million m~3 of methane. Methane is a greenhouse gas which has a potential 21 times greater than carbon dioxide. The maximum content of methane in ventilation air according to the Polish mining law amounts to 0.75%. The use of methane from ventilation air is very important from economic and environmental reasons. Efficient way to use low concentration air-methane mixtures is catalytic oxidation.
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