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多级孔Ni_2PTiO_2-Al_2O_3催化加氢脱萘工艺条件优化.docx

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多级孔Ni_2PTiO_2-Al_2O_3催化加氢脱萘工艺条件优化 Title:OptimizationoftheProcessConditionsforHydrogenationandDenitrationofNaphthaleneusingaMulti-levelPoreNi2PTiO2-Al2O3Catalyst Abstract: Thehydrogenationanddenitrationofnaphthaleneisanessentialprocessinthepetroleumindustryfortheproductionofhigh-qualityfuels.Inthisstudy,wefocusonoptimizingtheprocessconditionsforthehydrogenationanddenitrationofnaphthaleneusingamulti-levelporeNi2PTiO2-Al2O3catalyst.Theobjectiveistoenhancethecatalyticactivityandselectivity,aswellastomaximizetheyieldofthedesiredproducts.Thisoptimizationprocesswillcontributetothedevelopmentofmoreefficientandenvironmentallyfriendlyprocessesinthefieldofpetroleumrefining. 1.Introduction 1.1Background 1.2Objective 2.ExperimentalSetup 2.1Catalystpreparation 2.2Characterizationtechniques 2.3Reactionapparatus 3.ResultsandDiscussion 3.1Optimizationofreactiontemperature 3.2Influenceofhydrogenpressure 3.3Effectofcatalystloading 3.4Differenttypesofsolvents 3.5Catalyststabilityandrecyclability 3.6Reactionkineticsandmechanism 4.Conclusion 4.1Summaryofresults 4.2Futureperspectivesforfurtheroptimization 1.Introduction 1.1Background Naphthaleneisapolycyclicaromatichydrocarbon(PAH)commonlyfoundincrudeoilandcoaltar.Ithasahighmeltingpoint,makingitdifficulttohandleandprocess.Theconversionofnaphthaleneintomorevaluablecompounds,suchasalkylatedderivativesandcleaner-burningfuels,isessentialforthepetroleumindustry.Hydrogenationanddenitrationofnaphthalenearetwokeystepsinthisconversionprocess,aimingtoincreasethehydrogencontentandremovetheundesirednitrogen-containingcompounds(nitroandaminogroups). 1.2Objective Theobjectiveofthisstudyistooptimizetheprocessconditionsforhydrogenationanddenitrationofnaphthaleneusingamulti-levelporeNi2PTiO2-Al2O3catalyst.Theoptimizationwillfocusonimprovingthecatalyticactivityandselectivityofthecatalyst,aswellasmaximizingtheyieldofthedesiredproducts.Theeffectsofreactiontemperature,hydrogenpressure,catalystloading,solventtype,catalyststability,andrecyclabilitywillbeevaluat