简介:Oneofthepathwaysforachievingthegoalofincreasingtheefficiencyofcoal-firedpowerplantsandreducingtheemissionofpollutantsandCO2isbyimprovingthesteamtemperatureandpressure.Buttheincreaseofsteamparametersdependonthedevelopmentofnewhigh-temperaturemetalmaterials.ThispaperpresentedtheconstructivesuggestionsoncriticalmaterialsselectionforChina’snewgenerationof700℃cleanandhigh-efficiencycoal-firedboilerbysummarizingtheresearchanddevelopmentsituationofcriticalmaterialsforcoal-firedboilersoperatingat700℃/35MPaoftheEurope,JapanandUSA.
简介:CeO2andCuOx-CeO2supportedpotassiumcatalystsweresynthesizedbywetnessimpregnationmethod.ThecatalystswerecharacterizedbyBET,NO-TPO,NOx-TPDandsoot-TPOmeasurements.Bythedecorationofpotassiumandcopper,themaximumsootcombustiontemperatureoftheceria-basedcatalystdecreasedto338and379°CinthepresenceandabsenceofNOunderaloosecontactmode,re-spectively.ThepronouncedlyenhancedNOoxidationabilitybycopperintroductionandNOxstoragecapacitybypotassiummodif...
简介:ThermalsimulationtestswereconductedatdifferentdeformationtemperaturesanddegreesbyaGleeblesimulator.Theresultsshowthatthealloyhashigherresistancetodeformation;withanincreaseofthedeformationtemperature,thealloy'sflowstressandmaximumvaluedecrease;withanincreaseofthedeformationdegree,boththeinitialrecrystallizationtemperatureandthecompleterecrystallizationtemperaturedecreasesharply.Whenthedeformationdegreereaches30%,60%and80%,theinitialrecrystalliza...