简介：Thespraybehaviorsofthecombinedtrapezoidspraytray(CTST)haveasignificanteffectonthegas-liquidinterface.Inthispaper,thesprayprocessofCTSTinacolumn,570mmindiameter,wasexperimentallyinvestigatedbyusingahigh-speedcamera,andatheoreticalmodeloftheaveragedropletsizewasestablishedaccordingtotheunstablewavetheory.Theresultsdemonstratedthatgasvelocitypassingthroughtheholeisthekeyfactoraffectingthesprayangle,whichincreasesgraduallywithanincreaseinthegasvelocity.Whenthegasvelocityexceeds7.5m/s,thesprayanglebecomesstableataround55°.Theaverageflowvelocityoftheliquidsheetatthespray-holeincreasessignificantlywithanincreaseinthegasvelocity,anddecreasesslightlywithanincreaseintheliquidflowrate;moreover,itincreasesfromthebottomofsprayholeupwardtothetop.ThedensityofliquiddropsdistributioninthesprayareacanbedescribedbytheRosinRammlerfunction.Inaddition,theliquiddropsaremainlyconcentratedintheareaofsprayanglerangingfrom20°to40°,andtheygraduallybecomeuniformwiththeincreaseinthegasvelocityandtheliquidflowrate.Theaverageliquiddropsizedeceaseswithanincreaseinthegasvelocity,andincreasesslightlywithanincreasingliquidflowrate.Inthenormalworkingrange,theaverageliquiddropsizeisabout1.0mmto2.5mmindiameter.

简介：Inordertoimprovethestabilityandcorrosioninhibitionperformanceofbioenzyme,lipaseandlsozymewereco-immobilizedonthemesoporousmolecularsieveMCM-41bytheadsorptionmethod.Thentheimmobilizedenzymeswerecombinedwithaminotrimethylenephosphonicacidandpolyasparticacidtopreventcorrosioncausedbycirculatingcoolingwater.Theweight-lossmethodandelectrochemicaltechniqueswereusedtoevaluatetheperformanceofcompositeinhibitors.Theco-immobilizedlysozymeandlipaseachievedgoodinhibitioneffects.Aftertheywerecombinedwithaminotrimethylenephosphonicacidandpolyasparticacid,thecorrosioninhibitionpropertieswerefurtherimproved.Theinhibitionefficiencywaspromotedto94.4%.Duringthecorrosioninhibitionprocess,theimmobilizedenzymesplayedanimportantrole.Theadditionofcorrosioninhibitorcouldinhibittheanodicdissolutionandcathodichydrogenevolutionprocessofcarbonsteelatthesametime.Theadsorptionofco-immobilizedlysozymeandlipasecompositeinhibitoronthesteelsurfacewasajointactioninvolvingphysicaladsorptionandchemicaladsorption.