氣液界面?zhèn)髻|(zhì)機(jī)理與強(qiáng)化.pdf

1、y1532173氣液界面?zhèn)髻|(zhì)機(jī)理與強(qiáng)化Themechanismandenhancementofgasliquidinterfacialmasstransfer博士學(xué)位論文一級(jí)學(xué)科化學(xué)工程與技術(shù)二級(jí)學(xué)科化學(xué)工程作者姓名高習(xí)群指導(dǎo)教師馬友光教授天津大學(xué)化工學(xué)院2007年12月ABSTRACTGas—liquidmasstransferisoftenencounteredinchemicalengineeringprocessHowever，

2、uptonow，mostresearchesinthefieldarebasedonmacrophenomenonTheclassicmasstransfertheoriesandhypothesisaredevelopedonthebasisofsomeempiricalandsemi—empiricalcorrelationsTherefore，theinherentmasstransfercharacteristicandmech

3、anismhavenotyetbeenwellknownItisofvirtualsignificancetodeeplyinvestigatethemicromechanismofinterfacialmasstransferanddevelopaccuracynonlinearmasstransferpatterntakingintoaccounttheinterfacialnonequilibriumprincipleThemas

4、stransferprocessofmethanol—C02，ethanolC02，npropanolC02，nbutanol—C02andinfluenceofvariousconcentrationssodiumdodecylsulfate(SDS)，sodiumdodecylbenzenesulfonate(SDBS)，cetyltrimethylammoniumbromide(CTAB)，polyacrylicacid(PAA)

5、onmasstransferatdifferentbodyvelocitieswerestudiedrespectivelyusingmicroholographicinterferometer，andtheconcentrationdistributionneartheinterface，interfacialconcentrationandconcentrationboundarylayerthicknessonliquidside

6、weredeterminedOnthebasisofmoleculethermodynamics，combiningthegeneralchemicalpotentialdrivingforceequationofmasstransferflux，thenonequilibriumprincipleattheinterfacewasproposedandaconcentrationcorrelationbetweentwophasesa

7、ttheinterfaceisderivedandsolvedunderbothquiescentandmobileconditionsintheabsorptionprocessesofbubble，respectively，goodagreementshavebeenachievedbetweenthecalculateddataandexperimentaldataFortheabsorptionprocessofgaseouss

8、peciesintostationarydroplets，equilibriumrelationandnonequilibriumrelationsattheinterfacewereusedtoanalyzeandpredicttheabsorptiontimeforaphysicalabsorptionatarelativelylowsolubilityofgas，andtheconcentrationdistributionwit