柴油车排放法规及后处理技术的现状与展望

xStateoftheartandoutlookofdieselemissionregulationsandaftertreatmenttechnologiesSHUAIShijin,TANGTao,ZHAOYanguang,HUALunStateKeyLaboratoryofAutomotiveSafetyandEnergy,TsinghuaUniversity,Abstract:Dieselenginehasadvantagesoflowfuelconsumption,hightorqueoutputandwidepowerrange,andhasbeenwidelyusedintransportationandengineeringmachineryasapower.Thedieselpoweredvehiclescanonlymeetfuturestringentemissionregulationsusingaftertreatmentdevices.ThispapercomparedthedifferentvehicleemissionregulationsinEurope,theUSA,JapanandChina,andanalyzedin-cylinderandaftertreatmenttechnicalapproachestomeettheemissionregulationsforlight-dutyandheavy-dutydieselvehicles.Theresearchstatusofthemainstreamaftertreatmenttechnologieslikedieseloxidationcatalyst(DOC),nitrogenoxides(NOx)selectivecatalyticreduction(SCR),leanNOxtrap(LNT)anddieselparticulatefilter(DPF)wasdescribedanddiscussed.Thefuturedevelopmentofthedieselemissionregulationsandaftertreatmenttechnologieswasprospected.Keywords:dieselengine;emissionregulation;aftertreatment;selectivecatalyticreduction(SCR);dieselparticulatefilter(DPF)xxxxxxxxxeexx††††xxexexxeexxxeexPPeeexexxxxexxxxexexxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxλxxxxxxxxxxxxxxxxxxxxxxxxxxxßSAEPaperSAEPaperxxHighVoltageEngxxJShandongJianzhuUniversitySAEPaperSAEPaperSAEPaper23MaterialsReview23AppliedCatalysisB:Environmental70SAEPaperSAEPaperöChemEngJ150SAEPaperxxSAEPaperxSAEPaperInt’lConfonInternalCombustionEngineTechnologySAEPaperxxChinInternalCombustionEngineEngineering40SmallInternalCombustionEngineandMotorcycle40xSAEPaperxSAEPaperSAEPaperSAEPaperxDirectionsinEngine-EfficiencyandEmissionsResearchConfxxSAEPaper24ChinJCatalysis24x25xxChinJCatalysis25SAEPaperSAEPaperSAEPaper41JJilinUniv:EngandTechEd)41SciandTechofAdvMaterials832AutomotiveEng32SAEPaperxSAEPaperxSAEPaperSAEPaperSAEPaperDirectionsinEngine-EfficiencyandEmissionsResConfxSAEPaperxSAEPaperSAEPaperDirectionsinEngine-EfficiencyandEmissionsResearchConfDirectionsinEngine-EfficiencyandEmissionsResearchConfDirectionsinEngine-EfficiencyandEmissionsResearchConfSAEPaperProf.SHUAIShijinStateKeyLaboratoryofAutomotiveSafetyandEnergyatTsinghuaUniversityCenterforCombustionEnergyatTsinghuaUniversityAlternativeFuelVehiclesCommitteeofSocietyofAutomotiveEngineeringChinaOilProductsandCleanFuelsCommitteeofChineseSociatyforInternalCombustionEngine