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氧化锌负载混合载体催化剂在正丁烷芳构化反应中催化性能的研究(英文) Title:InvestigationoftheCatalyticPerformanceofZincOxideSupportedMixedCatalystsintheAromatizationofn-Butane Abstract: Thestudyexploresthecatalyticperformanceofzincoxide(ZnO)supportedmixedcatalystsinthearomatizationofn-butane.Theaimofthisresearchistoenhanceourunderstandingofthereactionmechanismandtoproposestrategiesforimprovingthecatalyticactivityandselectivityofn-butanearomatization.Asetofexperimentshavebeenconductedtoinvestigatetheinfluenceofdifferentparameterssuchasreactiontemperature,feedcomposition,andcatalystcompositionontheconversionofn-butaneandselectivitytoaromatics.Additionally,physicochemicalcharacterizationsofthecatalystswereperformedtoobservethecorrelationbetweencatalyticperformanceandcatalystproperties. 1.Introduction 1.1Background 1.2Motivation 1.3Objectives 2.ExperimentalSection 2.1CatalystPreparation 2.2CatalyticReactionSetup 2.3CatalystCharacterizationTechniques 3.ResultsandDiscussion 3.1InfluenceofReactionTemperature 3.2EffectofFeedComposition 3.3CatalystCompositionVariation 4.CharacterizationofCatalysts 4.1SurfaceAreaAnalysis 4.2PoreSizeandDistributionAnalysis 4.3X-rayDiffractionAnalysis 4.4ScanningElectronMicroscopyAnalysis 5.MechanisticInsights 5.1ProposedReactionPathway 5.2SurfaceReactionIntermediates 6.Conclusion 6.1SummaryofFindings 6.2ImplicationsoftheResearch 6.3FutureResearchDirections 7.References Inthisstudy,mixedcatalystsconsistingofZnOsupportedonvariouscarrierswereinvestigatedfortheircatalyticperformanceinthearomatizationofn-butane.Theexperimentswereconductedinafixed-bedreactorwithvaryingoperatingconditionssuchasreactiontemperature,feedcomposition,andcatalystcomposition.Theconversionofn-butaneandselectivitytoaromaticsweremeasuredtoevaluatethecatalyticperformance. Theresultsshowedthatthecatalyticactivityandselectivitywerestronglyinfluencedbythereactiontemperature.Highertemperaturesfavoredthearomatizationreaction,leadingtoincreasedconversionofn-butaneandselectivitytoaromatics.Theeffectoffeedcompositionwas