For utilization of coal mine methane (CMM) below 18% by volume methane concentration there are currently no economically viable technologies available. In order to avoid the emission of considerable amounts of greenhouse gas in the long term, the “LowCH4-MDT-Module“ project aims to develop, build and demonstrate a prototype of a modular plant with a lean gas burner, steam boiler and micro steam turbine. This prototype should enable a reliable utilization of CMM between five and 18 vol. % CH4 and thus further avoid CH4 emissions of today's approx. 270 million Nm³/a (corresponding to 3.6 million t CO2 eq/a) for at least another decade.
For this purpose, the specification of a corresponding plant is derived by analyzing site data of CMM utilizations in the Ruhr Area. Based on this, the modular prototype will be designed, developed, planned, built and commissioned, optimized and put into trial operation at a CMM site of Stadtwerke Herne AG. Based on the technical and economic results, the potential of further use at CMM sites in the Ruhr Area will be evaluated.