負(fù)載型Co、Ni催化劑催化噻吩加氫脫硫的研究.pdf

1、南昌大學(xué)碩士學(xué)位論文負(fù)載型Co、Ni催化劑催化噻吩加氫脫硫的研究姓名：李治俊申請學(xué)位級別：碩士專業(yè)：工業(yè)催化指導(dǎo)教師：石秋杰20071201AbslaactABSTRACTInthefirstpartofthethesis，PtandPdwereselectedasthesecondcomponentstoaddCoBhA1203topromoteitsactivityforthiphenehydrodesulfurizationCoM

2、B／rA1203(M=Pt、Pd)catalystswerepreparedbychemicalreductionmethodTheinfluenceofPt、PdonthepropertiesofCoBhA1203wasinvestigatedbydifferentialthermalanalysispTA)，inductivelycoupledplasma(ICP)，temperatureprogrammedreduction(TP

3、R)，temperatureprogrammeddesurptionofhydrogen012一TPD)TheresultsshowedthattheCoPt—B／TA1203andCoPdB／，rA1203catalystsexhibitedbettercatalyticperformancethanCoB／yA1203TheadditionofPtorPdchangedthecompositionCoBalloy，resulting

4、intheenhanceofthethermalstabilityofthecatalystMoreoverthereductiontemperatureofCo—B|、A1203andthestrengthofH2adsorptionOVerthesurfaceofCoB／y—A1203werebothdecreasedbytheadditionofPtorPd，buttheactivesurfaceareaandthenumbero

5、ftheadsorptionsiteswereincreased，whichareinfavorofthereactionInthesecondpartofthethesis，Ni／ZnOcatalystwaspreparedbyimpregnationmethodforHDSofthiophene，comparingtotheNi／A1203catalystZnOwaspreparedbycombustionsynthesisrnet

6、hoflandtheeffectofNdOnNi／ZnOcatalysrwasm癌edTheresultsshowedthat：(i)礎(chǔ)ZnOcatalystwasbetterthanNi／刖203catalystforHDSofthiopheneThereasonsforitwerethatthemoreamountofadsorptioncentersandthestrongerinteractionbetweenZnOandNie

7、xisitedOVerthesurfaceofNi／ZnOthanthoseOVOfNi／舢203，andZnOhadpromotingeffectoncatalysis(ii)NiNd／ZnOexhibitedhighercatalyticactivitythanNi，ZnOTheactivesurfaceareathenumberoftheadsorptionsitesandtheacidpropertyofNi／ZnOwerein

8、creasedbytheadditionofNd，whichareinfavorofthereaction(iii)Ni／ZnO(C)exhibitedhighercatalyticactivitythanNi／ZnO，whichwasduetothebiggerspecificsurfaceareaandaverageporediameterinZnO(C)ComparedwithNi／ZnO，Ni／ZnO(C)showbiggera