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在负载型Pd、Pt催化剂上苯酚水相加氢脱氧实验研究.docx

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在负载型Pd、Pt催化剂上苯酚水相加氢脱氧实验研究 摘要： 本研究通过实验探究了负载型Pd、Pt催化剂在苯酚水相加氢脱氧反应中的催化性能。实验结果表明Pd、Pt催化剂均可催化苯酚水相加氢脱氧反应，并且在不同反应条件下具有不同的催化活性和选择性。同时，本实验还对反应条件进行了优化，并将实验结果与先前的研究进行了比较。本研究有望为进一步研究催化剂的开发提供参考。 关键词：催化剂；苯酚；加氢脱氧；选择性；催化活性 Abstract: Inthisstudy,thecatalyticperformanceofPdandPt-supportedcatalystsinthephenolaqueousphasehydrogenationdeoxygenationreactionwasinvestigatedbyexperiments.TheresultsshowedthatbothPdandPtcatalystscancatalyzephenolaqueousphasehydrogenationdeoxygenationreaction,andtheyhavedifferentcatalyticactivityandselectivityunderdifferentreactionconditions.Atthesametime,thereactionconditionswereoptimized,andtheexperimentalresultswerecomparedwithpreviousstudies.Thisstudyisexpectedtoprovidereferenceforfurtherresearchanddevelopmentofcatalysts. Keywords:catalyst;phenol;hydrogenationdeoxygenation;selectivity;catalyticactivity Introduction: Phenoliswidelyusedinthechemicalindustry,butitstoxicityandenvironmentalpollutionmakeitoneofthemostconcernedpollutants.Thecatalytichydrogenationdeoxygenationofphenolisapromisingmethodforthepreparationofvalue-addedchemicals,suchascyclohexanone,cyclohexanol,andphenylcyclohexane.Thereactioncanbecarriedoutundermildconditionswithhighyieldsandselectivity. Catalystsarekeyfactorsinhydrogenationdeoxygenationreactions.PdandPt-supportedcatalystsarewidelyusedduetotheirhighactivityandselectivity.However,thecatalyticperformanceofPdandPt-supportedcatalystsinphenolaqueousphasehydrogenationdeoxygenationreactionstillneedstobefurtherinvestigated. Inthisstudy,PdandPt-supportedcatalystswereusedinphenolaqueousphasehydrogenationdeoxygenationreaction,andtheeffectsofdifferentreactionconditionsonthecatalyticperformancewereinvestigated. Experimental: Materials: Phenol(AR),Pd/C(20wt.%),Pt/C(20wt.%),andhydrogenwerepurchasedfromTCI(Shanghai)DevelopmentCo.,Ltd. Instrumentation: Thereactionwascarriedoutinahigh-pressurereactorwithastirringsystemat150℃and4MPa.ThereactionproductswereanalyzedbyGC-FIDonaShimadzuGC-2010PlusgaschromatographequippedwithanHP-5column. PreparationofCatalys