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1、SelectionandanalysisoffluegastreatmenttechnologiestoachieveultralowemissionsfrominferiorcoalfiredpowerplantsProf.LONGHui12thECCRIACONFERENCEDr.HUANGJingjingDeputyChiefEngineerCardiffUniversity,Cardiff,UKSeniorEngineer5th-7thSeptember2018ThisspecificworkissupportedbyNationalKey

2、R&DPlan,asProjectNo.2016YFC0203701-1”Keytechnologiesofultra-lowemissionoffluegaspollutant”.CONTENT1BackgroundsofEmissionStandardsandPolicyinChina2DevelopmentofPollutantsControlTechnology3Ultra-lowEmissionEngineeringReconstructioninChina4InferiorCoalFiredPowerPlantandPollutants

3、Emissions35FlueGasTreatmentTechnologiesforInferiorCoalFiredUSCUnitwithCHP/CCHPPowerPlants6ExpectationofUltra-lowEmissionofCoalFiredPowerPlants1BackgroundsofEmissionStandardsandPolicyinChinaDustEmissionStandards---historyDustemissionstandardofthermalpowerplantwasindependentlyst

4、artedfrom1991,inEmissionStandardofAirPollutantsforThermalPowerPlants(GB13223-1991).GB13223wasrevisedin1996,2003and2011,andGB13223-2011isthecurrentemissionstandardandhasmuchstricterrequirements,anduniformedonesingledustemissionlimitofallthermalpowerplantconstructedindifferentst

5、ages.1BackgroundsofEmissionStandardsandPolicyinChinaSOEmissionStandards----history2EmissionStandardofAirPollutantsforThermalPowerPlants(GB13223-1996)firstlyrequiredSOemissionofthermal2powerplants.Emissionlimit:1200mg/Nm3(ifSar>1%),2100mg/Nm3(ifSar≤1%)GB13223-2003requireddesul

6、furizationinthermalpowerplants.1BackgroundsofEmissionStandardsandPolicyinChinaNOEmissionStandards----historyxGB13223-1996firstlyrequiredNOemissionfornewboilersxhigherthan1000t/hratedevaporation。1000mg/Nm3forliquidslagdischarge;650mg/Nm3forsolid-statedischargeGB13223-2003requi

7、redemissionlimitsonallthermalunitsdistinguishedfromfuelcharactersandconstructiontime.GB13223-2011hasmuchstricterrequirementsonpulverizedcoalfurnace(includingW-flamefurnace)andCFB.1BackgroudsofEmissionStandardsandPolicyinChinaCurrentemissionlimitsGB13223-2011:dust-30mg/Nm3,SO-1

8、00mg/Nm3,NO-2x100mg/Nm3ingeneralareas.Specialemissionlimits:d