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In underground mines the methane, accompanying the exploitation of the primary mineral - hard coal, and is discharged into the atmosphere in two ways: with ventilation air (70%) and methane drainage system (30%). The development of methane from coal seams is important for the following reasons: as it can be used for the production of electricity and heat or in cogeneration. This is because the emission of methane into the atmosphere contributes to the greenhouse effect. Currently the work is being carried out by t...