TS-1催化乙烯、丁烯气相环氧化的初步探索的开题报告.docxVIP

TS-1催化乙烯、丁烯气相环氧化的初步探索的开题报告

(Title)PreliminaryexplorationofTS-1catalyzedgasphaseepoxidationofethyleneandbutene

(Body)

1.Introduction

Theepoxidationofolefinstoformepoxidesisanimportantindustrialprocessusedfortheproductionofavarietyofchemicals.Conventionally,theprocesshasbeencarriedoutusingorganicperacidsormetalcatalysts,whichsufferfromvariouslimitationssuchashighcost,lowselectivity,andenvironmentalconcerns.TS-1,azeolite-basedcatalyst,hasemergedasapromisingalternativeduetoitshighselectivity,activity,andstabilityinthegas-phaseepoxidationofolefins.

2.Objectives

TheobjectiveofthisstudyistoinvestigatethecatalyticperformanceofTS-1inthegas-phaseepoxidationofethyleneandbutene.Themainfocusofthestudywillbeontheeffectofoperatingparameterssuchastemperature,pressure,andreactantconcentrationonthecatalyticreaction.

3.Experimentalprocedure

Thegas-phaseepoxidationreactionwillbecarriedoutinafixed-bedreactorpackedwithTS-1catalyst.Thereactants(ethyleneandbutene)willbefedintothereactoralongwiththeoxidant(oxygen)andasolvent(acetonitrile).Thereactionwillbecarriedoutundervariousoperatingconditions,includingdifferenttemperatures,pressures,andreactantconcentrations.Theproductsofthereactionwillbeanalyzedbygaschromatography-massspectrometry(GC-MS)todeterminetheselectivityandyieldoftheepoxideproducts.

4.Expectedresults

ItisexpectedthatTS-1willexhibithighselectivitytowardstheepoxidationofbothethyleneandbutene,withhighyieldsofthecorrespondingepoxides,ethyleneoxideandbuteneoxide.Itisalsoexpectedthattheoptimaloperatingconditionsforthereactionwillbedetermined,whichwillincludespecifictemperature,pressure,andreactantconcentrationranges.

5.Significance

Thegas-phaseepoxidationofethyleneandbuteneusingTS-1catalysthasthepotentialtobea