Coal Mine, Landfill, Biogas
Methane Emissions from LandfillsMEGTEC has installed methane emission systems at numerous landfills that efficiently abate methane concentrations as low as 0.1 Vol-% without adding energy to the oxidation process. VOC/HAP Emission Control System QuestionnaireBiogas UtilizationIn applications with low energy content of emissions such as odor, biogas is utilized as supplementary fuel, being a cost efficient alternative to natural gas. Coal Mine Ventilation Air Methane (VAM)MEGTEC Systems recently announced the inauguration of the first power plant in the world to use MEGTEC's technology to generate electrical power by using coal mine ventilation air methane (VAM) as its primary fuel. The power plant is now in full operation in Australia at the West Cliff Colliery of BHP Billiton, the world's largest diversified resources company. Innovative Technology Each hour, the installation is treats 0.9 % of methane content in 150,000 scfm (250,000 m3) of ventilation air. The energy produced from the methane is utilized to generate steam suitable for running a conventional 6 Megawatt turbine, resulting in this first power plant of its kind. The volume of ventilation air treated amounts to only 20 % of the total volume of ventilation air available from the ventilation shaft. Methane as a Greenhouse Gas When coal is formed, so is methane. When the coal is excavated, methane is released. Since methane in air is explosive in concentrations between 5 and 15%, ventilation air is used to dilute the methane to levels below 1 % - well below the explosion limit. This safety measure leads to very large volumes of air with extremely low methane content being released to atmosphere. Since methane is a green house gas driving the global warming more than 20 times more potent than CO2, BHP Billiton can convert the emission reduction to carbon credits corresponding to 250,000 tons of CO2e (CO2-equivalents). A VAM Power Plant treating the full volume of ventilation air can generate approximately one million carbon credits.
Contact MEGTEC today to ask about how we can help you with methane emissions & greenhouse gas abatement solutions! Products Coal Mine Methane Abatement & Energy Production: Energy from Coal Mine Ventilation Air Methane
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