燃煤电站锅炉二氧化碳捕集封存技术经济性分析

40320095BOILERTECHNOLOGYVol.40,No.3May.,2009:2008212218:(19842),,,:CN3121508(2009)0320036206,(,200092):;;CO2;:(CCS),,350MW,138/CO2,77/CO2,0.06/kWh,0.10/kWh:TK229.6:A0CO2,(IPCC)20051.16.4,1859cm,3.5,40%70%,2008,,,,CCS(CarbonCaptureSequestration),CO2,,2007:,19.4t,11.8t,8.6t,5.1t,1.8t,,76%20052162012,2007CDM,,(2,20050.74;CO21,28010-6,37510-6),2008115CO2CO2,,CO2,CO2,3,:CO2,,CO2,1CCSCCS2:CO21.13()CO2(1)1(1)CO2,,MHIsKS21,RectisolSelexol(2)H2CO,,CO2,IGCC()NGCC()(3),CO2CO2(90%)CO21.2CO21977,:(1),;,(2),3000m;,5000m(3),,,(4),2CCS2.12.1.1CO2,CO2,,CO2,CO2,CO2,,,,,,,CO2,IPCC2005,1575/CO2,25115/CO2(1)73401CCSCCS1575/CO2555/CO225115/CO218/CO20.58/CO2:0.10.3/CO2530/CO250100/CO22.1.2IGCCNGCC2,IGCC,,,,,,CO2NGCC,IGCC,,IGCC,50%60%,,CO2,,,IGCC1025/kW2.1.3,,,CO2,,,1/5,CO2,,N2,NOx,,,,,2.22.2.1,,,800m,(),65709000,1502000,100001000000(CO2)(1),,2.2.2,,3000m,300,,,,200012000t(1),,,,,,2.2.3,,,,,,,,,833,:,,,,,,,3,11.63.7t,2.64.7t,50100/CO2(1)2.2.4,,,,500MW2000km2,,,1%,1,1%2%2.3CCS,,,,CO2,,,,,,,,,,2:CO2,CO2,CO2,,CO2,API;,,,,,,3CCS350MW,CCS(1),CO220Nm3/h,25.6kg/h(140,1.28kg/m3),3.5GJ/tCO2,250kW/tCO2,1.5kg/tCO218.8/GJ,0.3/kWh,1.1:1.1(3.518.8+2500.3)256=39649.3/h(2),100Nm3/h,20.95Nm3/h(20.95%)20.95Nm3/h,,112,73,:0.380.40kWh/Nm3O2,0.45kWh/Nm3O2,0.3/kWh:0.30.45209500=28282.5/h,q=6%,1/5,q=4.74%0.36kg/kWh,,A/:0.360.04743501000=5972.4kg/h,:5.97A/h(3)CO2,CO28MPa,1014MPa,CO20.1MPa,,50,V1=0.6108m3/kg,n=1.35,10MPa,201,V2=0.0896m3/kg,=0.7,Cv=0.66kJ/(kgk),cp=0.85kJ/(kgk),0.3/kWh:9340h=n-1nRT1p2p1n-1n-1=1.35-11.35287.64323100.11.35-11.35-1=55.306kJ/kgh=h=55.3060.7=79.01kJ/kg:0.379.01256000/3600=1686/h(4)CO2,CO210MPa,201,CO2,10MPa,47CO2,256t/h,25050/tCO2,40/tCO2,1.4/tCO2,200:(50200/250+40+1.4)256=20838.4/h(5)CO2,CDMCO21015/tCO2,B/tCO2,:256B/hCO2EOR()ECBM(),,IPCCEOR5060/tCO2,(80),,C/tCO2,:256C/h1:+:39649.3+1686+20838.4-256B=62174-256B/h2:+:39649.3+1686+20838.4-256(B+C)=62174-256(B+C)/h3:+:28282.5-5.97A+1686+20838.4-256B=50807-5.97A-256B/h4:+:28282.5-5.97A+1686+20838.4-256(B+C)=50807-5.97A-256(B+C)/h4CO2,,CO2,(700/)(50)(15/)71,4(/h)35294(138/CO2)-20706(0.06/kWh)19748(77/tCO2)-36252(0.10/kWh)()138/tCO2,77/tCO2,0.06/kWh,0.10/kWh,,,,,:[1].[C].,2005.[2].[J].,2008(1).[3],.[J].,2008(4).[4],.[J].,2006(5).[5],.:[J].,2007(12):78-83.[6],,,.CO2[J].,2006,39(10).[7],,.[J].,2007,16(10).[8]JieXiong,etal.AneconomicfeasibilitystudyofO2/CO2re2cyclecombustiontechnologybasedonexistingcoal2firedpowerplantsinChina[C].Fuel,2008.[9]PageS.C.etal.Carboncaptureandstorage:Fundamentalthermodynamicsandcurrenttechnology[C].EnergyPolicy,2008.[10]TerryF.wall.Combustionprocessesofcarboncapture[C].ProceedingsofcombustionInstitute,2007.043,:AnalysisofCarbonCaptureSequestrationTechnologyofCoal2firedBoilerTIANMu,ANEn2ke(ThermalEnergyandEnvironmentalEngineeringInstituteofTongjiUniversity,Shanghai200092,China)Keywords:carboncapturesequestration;O2combustionofpulverized2coal;CO2adsorption;technicalanalysisAbstract:ThisarticleexpoundsthenecessityofChinesecoal2firedpowerstationadoptingCCS(carboncapturesequestration)technology.AnalyzeseveralmethodsofCCSprogram,andtakeakindof350MWpowerstationasexampletoanalyzeeconomicalefficiencyoftheseprograms.Cometoaconclusionthatthekeyeconomicpointofpost2combustionsystemis138RMBpertonofCO2,thekeyeconomicpointofO2combustionsystemis77RMBpertonofCO2.Theprofitofpost2combustionsystemwithEORis0.06RMBperkWh,theprofitofO2combustionsystemwithEORis0.10RMBperkWh.(9)(3),NOxNOx,NOx:[1],,,.[J].,2004,24(4):184-188.[2],,.NOx[J].,2002,22(1):33-37.[3],,,.NOx[J].,2003(1):68-71.[4],.NOx[J].,2004(10):233-237.[5]J.Platt.Aresourceallocatingnetworkforfunctioninterpola2tion[J].NeuralComputation.1991(3):213-225.[6]Y.Lu,N.Sundararajan,P.Saratchandran.performancee2valuationofasequentialminimalradialbasisfunction(RBF)learningalgorithm[J].IEEETrans.NeuralNetworks,1998(9):308-318.AnEfficiencyandNOxEmissionsModelforPowerStationBoilersonImprovedMinimalResourceAllocatingNetworksXUChang1,2,LUJian2hong1,ZHENYuan2(1.HoaiUniversity,Nanjing210098,China;2.SoutheastUniversity,Nanjing210096,China)Keywords:MinimalResourceAllocatingNetworks(MRAN);NOx;boilerefficiencyAbstract:TherehavebeenconsiderableattractionstohighefficiencyandlowNOxemissionscombustionoptimizingtechnologyforpowerstationboilerstheseyears.HighefficiencyandlowNOxemissionscombustionoptimizationisbasedonboilerscombustionefficiencyandNOxemissionsmodel.Fromthepointofimprovingthegenerationcapabilities,thispaperimprovesthehiddennodesreducingstrategiesofMRANbyaddingpunishingandincorporatingstrategies,appliestheimprovedalgorithmtomodelNOxemissionsandefficiencyonlineforapowerstationboiler.SimulationresultsshowtheimprovedmodelhasmorecompactstructurethanMRANexceptthegeneralexcellence.Theimprovedmodelismulti2outputandcanpredictNOxemissionsandefficiencyatthesametime,andsuitableforNOxemissionsandefficiencyglobeoptimizingonlineforpowerplantboilers.14