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1、0448FuelCellDemonstrationUsingCoalMineMethaneG.SteinfeldandJ.Hunt,FuelCellEnergy,Inc.P.M.Sööt,Ph.D.,NorthwestFuelDevelopmentInc.ABSTRACTPowergenerationisamongseveraloptionsforutilizationandmitigationofcoalminemethane.Amongthepowergenerationtechnologyoptions,highte
2、mperaturefuelcellsprovidethehighestefficiencieswiththelowestemissions.TheresultsofafuelcelldemonstrationutilizingcoalminemethaneconductedinHopedale,Ohioin2003arepresented.ThedemonstrationwassupportedbytheU.S.DepartmentofEnergy,NationalEnergyTechnologyLaboratoryand
3、wasconductedatatestsiteoperatedbyNorthwestFuelDevelopment,Inc.ThesiteistheNelmsMiningComplexinHarrisonCounty,Ohio,ownedbyAEPOhioCoalLLCatthetimeofthedemonstration.Forthisdemonstration,FuelCellEnergyusedoneofitshightemperaturecarbonatefuelcellpowerplantsdesignedfor
4、operationwithnaturalgasfuel.Theseplantsarecurrentlybeinginstalledinhotels,hospitals,datacenters,universities,wastewatertreatmentplants,andothercommercialandindustrialapplications.Thisdemonstrationindicatedthatcoalminemethanethatisbelowpipelinequalitystandardscould
5、beutilizedathighefficiencytoproducepowerbyafuelcell.The200kilowatt(kW)carbonatefuelcellpowerplanttestedgenerated140kWnetatanefficiencyof40.1percent.Thehighefficiencyandlowemissionsofhightemperaturefuelcellpowerplantsmakethemanattractivealternativetomitigationofgre
6、enhousegasfromcoalminemethanewheretheeconomicsarefavorable.INTRODUCTIONCoalminemethaneisaby-productofcoalminingoperationsthatrequireitsremovalforsafetyreasons.Inthepast,mostminingoperationshavesimplyventedthemethanefromcoalseamspriortoandduringminingwithoutattempt
7、ingtoutilizeit.Morerecently,thevalueofthisresourcehasbeenrecognizedandthecollectionanduseofcoalminemethaneisgainingmomentumbothforenvironmentalandeconomicreasons.Whileactiveminesneedtoremovemethanefromthecoalseampriortoandduringminingoperations,thereisalsoasignifi
8、cantpotentialforcoalminemethanerecoveryfromabandonedmines.Methaneis23timesmorepotentthancarbondioxideattrappingheatintheatmospherebasedontheGlobalWarmin
