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0(IPCC),[1]。2005—2012,、。,CO2,;,2020CO254×108t,16.5%,2030,(47.3~67.9)×108t。,,CO2。,CO2(CarbonDioxideCaptureandStorage,CCS)CO2,:CO2,,,CO2。,、。[2],2012,1981mCO2100t;,1000t;20093“CO2”[3],CCS。CO2;,、、、、CCS。、、、、、CO21,2(1.,710054;2.,100011):CO2CO2。CO2,CO2,。,、、、CH4、CO2,,CO2,、、、,、、。,CO2,CO2。:;;;CO2;:X141;X24:A:“973”(2005CB221501-04)、(2008ZX05040)。:(1975—),,,,。:2010-08-31:ADiscussiononMainGeologicControllingFactorsofCO2SequestrationinDeepCoalSeamsJiangWenping1,CuiYongjun2(1.XianBranch,ChinaCoalResearchInstitute,Xian,Shaanxi710054;2ChinaShenhuaCoaltoLiquidandChemicalCo.Ltd.,Beijing100011)Abstract:TheCO2captureandstorage(CCS)asoneofeffectivemeasuresincarbonemissionreductioniswidelyadoptedinmajorcountries.Inwhich,CO2sequestrationindeepunrecoverablecoalseamscanservetwoends:reductionofcarbonemissionandsubstitutionofCBMfromsuchcoalseams.Basedonlaboratorystudies,analyzedimpactsfromcoalrank,temperature,pressure,moistureandnitrogenonadsorptionofCH4andCO2bycoal,combinedwithCBMexploitationareaselectionassessment,discussedmaingeologiccontrollingfactorsofCO2sequestrationincoalseams,andfinallyreckonedthattheyarecoalrank,coalthickness,burieddepthandpermeability,whilegeologicalstructure,hydrogeologyandmethanecontentaresubordinate.ThecomprehensiveanalysishasconsideredthatthepotentialofCO2sequestrationindeepcoalseamsinthecountryisquitelarge,whiletheNorthChinaareaisthepreferred.Keywords:coalbedmethane;adsorption;sequestration;CO2;geologicfactorCOALGEOLOGYOFCHINAVol.22No.11Nov.20102211201011:1674-1803(2010)11-0001-06doi:10.3969/j.issn.1674-1803.2010.11.0122CCS,、、、、、CCS,。,CO2,CO2,———、,。,,CO2,,CO2。,CO2,。,。CO2,CO2-ECBM,1996,10tCO2。AlbertaECBM,。,CO2-ECBM。2003CO2CO2-ECBMR。1CO2CO2,,CO2。,;,。,。,:,,,,,,,;,,、,,。CO22,2CO21[4],CO2[5]。,,2CO211。,CO2,,。2CO22.1CO2,,CO2。,。CO2。、、CO2,,,〉〉〉(1)。,CO2,,CO2(2)。,,CO2,CO2。2.2CO2,。,,CO2,1CO2Figure1CO2adsorptionisothermofdifferentcoals2CO2Figure2CO2adsorptionpotentialenergycurveofdifferentcoalranks2113CO2Figure3CO2adsorptionofcoalunderdifferenttemperatures4Figure4Contrastofmethaneadsorptioncapacityunderdryandbalancedmoistureexperimentalconditions。CO2,CO2。2.2.1,,。CO2CH4,,CO2。EkremOzdemir[4]CO2,CO2。3[4],,CO2。2.2.2Kroossetal.[6]40℃、60℃、80℃,20MPa、CO2,,8~10MPa;,,。CH4,CO2。,CO2,CO2。2.2.330℃,。4,,0.5~4.5cm3/g。Joubertetal.[7],,;,。,CO2。EkremOzdemir[4],,CO2;,CO2(5)。,CO2[8],CO2。,CO2。,CO2。6,,,CO2,。2.2.4CO2,,:CO23225CO2Figure5ImpactfrommoisturetoCO2adsorptioncapacityCH4、CO2、N2。(7),CO2CH4、N2。(8),CO2,CO2。[9]CH4、CO2—CO2CH4,CO2,,CO2。3CO2CO2,[10]、[11]、WhiteCM[12]。,,CO2。3.1、、;,CO2CH410。,,CO2。,,CO2,,,CO2。,,CO2。,,,,。,,。6CO2Figure6AschematicdiagramofwetcoalbodyCO2adsorption7Figure7Differentgasesadsorptionisothermsoflongflamecoalandanthracite4113.2CO2,,CO2。,。,。,,;,CO2,CO2。3.3300~1500m。,;[13];,,,CO2。IPCC、Bachu[1,14],1300~1500m;CO2,800~1000m。,CO2。3.4IPCC、BachuS[1,14]CO2。()。。,CO2,CO2,,CO2。,,CO2。CO29。,;,。CO2,;99%。,。CO2、N2,,。,CO2(1~5mD)。3.5,,,CO2。,,CO2;CH4,CO2。,、,。,CO2,,,、。3.6,,CO2。,8Figure8Resultsoflongflamecoalandcokingcoaladsorptionofdifferentmulticomponentgases9Figure9Fluidflowingincoalseamintersections(,;,、、),:CO2522CO2,CO2。,。CO2,、,。3.7,CO2。,CH4,。8m3/t,CO2,,。CO2。,,。,。CO2,。,CO2、,。4CO2,。CO2,。[11]、CO2CH4,300~1500mCO2;,CO2120t,2002CO23.6。YuHongguan[15]290~1500m1500~2000mCO2。,0~1500m,CO2。1500~2000m,CO2,1427t,0~1500m868t,1500~2000m558t。,,CO2、。,1500~2000m,CO2。,,。CO2。CO2,,,、CO2、、、CO2。CO2,。:[1]MetzB,DavidsonO,deConinckHC,etal.SpecialReportonCarbonDioxideCaptureandStorage[C]//IPCC-InergovernmentalPanelonClimateChange.UKandNewYork:CambridgeUniversityPress,2005:195-276.[2]100[J].,2009,3:51.[3].[N/OL].,2009-04-07.[4]EkremOzdemir,ChemistryoftheadsorptionofcarbondioxidebyArgonnepremiumcoalsandamodeltosimulateCO2sequestrationincoalseams[D].ThedissertationofDoctorofPhiliosophyofUniversityofPittsburgh,2004.[5],,,.CH4、N2CO2[J].,2005(1):61-65.[6]KroossBM,vanBergenF,GensterblumY,etal.High-pressuremethaneandcarbondioxideadsorptionondryandmoisture-equilibratedPennsylvaniancoals[J].IntJCoalGeol,2002,51(27):69-92.[7]JoubertJI,GreinCT,BienstockD.Sorptionofmethaneinmoistcoal[J].Fuel,1973,52(3):181.[8],,.[J].,2007(4):576-579.[9],,,.CO2[J].,2004,10(3):463-467.[10],,,.CO2[J].,2008,13(2):93-99.[11],,.CO2[J].,2005,24(16):2947-2952.[12]WhiteCM,SmithDH,JonesKL,etal,Sequestrationofcarbondioxideincoalwithenhancedcoalbedmethanerecovery-Areview[J].EnergyFuels,2005,19(3):659-724.[13]CapacityandFairwaysSubgroupoftheGeologicWorkingGroupoftheDOERegionalCarbonSequestrationPartnerships.MethodologyforDevelopmentofGeologicStorageEstimatesforCarbonDioxide[M].VSDepartmentofEnergyNationalEnergyTechnologyLaboratorgCarbonSeqnestrationProgram,Augwt2008.[14]BachuS,BonijolyD,BradshawJ,etal.CO2storagecapacityestimationMethodologyandgaps[J].InternationalJournalofGreenhouseGasControl,2007,1:430-443.[15]YuH,ZhouG,FanW,etal.PredictedCO2enhancedcoalbedmethanerecoveryandCO2sequestrationinChina[J].InternationalJournalofCoalGeology,2007,71:345-357.6
本文标题:深部煤层封存CO_2的地质主控因素探讨
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