Coal Mine Gas - Experience - Drivers & Barriers Gerhard Klammer CityPlan - Prag, 2 GE Energy Jenbacher gas engines Coal Mine Gas Safety & Environmental Issues Hazardous situations caused by frequent coal mine gas explosions. GWP of Methane is 21 times more reactive than carbon dioxide. Creating adverse impacts on the ozone and contributing to increased smog formation and global warming. Coal mine gas can substitute coal in residential use and as a fuel for power generation. CMM utilization can improve (finance) Mine safety. CityPlan - Prag, 3 GE Energy Jenbacher gas engines Coal Mine Gas Coal Mine Methane Utilization with Gas Engines Electrical energy generated can be utilized in the coal mine or fed into the public power grid Thermal energy can be used for heating purposes on-site or fed into a district heating system Improving safety issues in coal mines (avoiding explosions) Positive environmental impact Potential to generate carbon credits through CDM projects by avoiding liberation of methane (CH4) into the atmosphere CityPlan - Prag, 4 GE Energy Jenbacher gas engines Coal Mine Gas Coal Mine Methane – Unexploited Source of Energy Approx. 6 - 7% of the global CH4 e from hard coal mining*) These are approx. Billion m³CH4/year only approx. 6% are currently used, the rest is released unburned *) Source: OECD/IEA **) based on electrical efficiency 40%; Energy Mix Germany 1996; 8,000 hrs/y kWh coal mine gas => 1 kWhel kWh coal mine gas = kg CH4 GWPCH4 = approx. 21 => kg CO2 equivalent => kg/kWhel CO2 reduction by CHP with coal mine gas 1 MWel from coal mine => approx. 34,000 t CO2/y reduction potential**) Utilization of Coal Mine Methane with Gas Engines Coal Mine Gas: Properties, Characteristics Impact for utilization in gas engines Examples Drivers & Barriers CityPlan - Prag, 6 GE Energy Jenbacher gas engines Coal Mine Gas Coalbed Methane (CBM) coal mine gas fr
