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1、上海交通大学硕士学位论文ABSTRACTCatalyticOxidationofElementalMercurywithTheThermal-DecompositionofCuBr2andAMembraneDeliverySetupABSTRACTMercuryexistedintheenvironmentcharacterizedashighvolatileandpersistentpollutant.Itaccumulatedinthebodyofcreaturesintheformofmethylmercuryandbroug
2、htaprofoundimpactonnervoussystem.There2+0P2+Pwerethreestatesinfluegas:Hg,HgandHg.Amongthem,HgandHgcouldbeeliminatedwithcurrentairpollutioncontrollingdevice(APCD).0However,duetoitshighvolatilityandlowsolubility,Hgwasdifficulttobe02+eliminated.Onefeasiblemeasurementwasth
3、atHgoxidizedtoHgwithcatalysts.Nowadaysmanycatalystshavebeendeveloped.Butduetotrace0levelofHgconcentration,excessiveoxidantlikeHClwasaddedtomeettheeliminationrequirement.ExcessiveHClcausedductcorrosionaswellassecondarypollution.Thecurrentresearchemployedcontrolled-relea
4、secatalysismembrane02+systemtoachievetheconversionfromHgtoHg.Inaddition,wedesignedadevicethatcancombinethereactionreactorwiththemercurydetectionasaIII万方数据上海交通大学硕士学位论文ABSTRACTwhole,toavoidthedataerrorsresultedfromtheadsorbedBronthedownstreampipewhichcausedthewalleffecto
5、ntheoutletmercurymeasurement.Thusmorereliableexperimentaldatacouldbeobtained.Thestudyshowedthatthedatafromthereactionanddetectionintegrationdevicedisplayedhighcredibility.0AccordingtoCo,V,Cu,Mn,Zrcatalysismembrane,HgoxidationefficiencywastheutmostwithMnOxcatalysismembr
6、ane,andBrperformed0muchbetterthanCl.80%Hgcouldbeeliminatedat200℃and75mg0Al2O3.However,SO2influegasseemedtoinfluenceHgoxidationobviouslywhileNOshowedslightpromotion.Addtionally,byaddingZrintoMncatalysismembrane,Mn-Zrsystem0performedbetterHgoxidationandanti-SO2ability.Mo
7、reover,Mn-Zrcatalysismembranehadawidetemperaturewindowwhichwasfrom200℃to300℃.Meanwhile,XRD,H2-TPRandXPSwereemployedtotestcatalysismembrane.IntheMnOx-ZrOx/α-Al2O3catalysismembranesystem,MnOx0existedmainlyintheformofMnO2.SO2andHgcompetitivelyadsorbedontheactivesites,thus
8、SO2couldtransformintosulfate.ZrOxwasinertia.TheroleofZrfocusedonpromotingdispersionofMnOxandincreasingtheactivesites.
