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OALib Journal期刊
ISSN: 2333-9721
费用：99美元
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EffectofHydrohalogenationofPtRe/H-ZSM-5forCyclohexeneConversion
DOI: 10.1016/S1872-2067(11)60372-0, PP. 697-705
Abstract:
？ExtendeduseofsupportedPtcatalystscausesthermalmigrationofPtparticlestoformlargeagglomerates,thusdecreasingthecatalyticactivity.ThecombinationofPtwithReprotectsPtagainstmigration.Inaddition,Cl-injectionintothereactorassistsPtparticlesredispersiontoprolongcatalystlife.Inthiswork,aPtRe/H-ZSM-5catalystwastreatedwitheitherHClorHFtoinvestigatetheirroleinactivatingordeactivatingthecatalyst.Theconversionexceeded90%inthewholetemperaturerangewiththePtRe/H-ZSM-5(HCl)catalyst,anditsactivityforthedirectisomerizationofcyclohexenetomethylcyclopentenes(MCPEs)wasthelowestbuttheactivityforthehydrogenationoftheMCPEstomethylcyclopentanewasthehighest.ThereactivitiesofMCPEsandcyclohexadienesonthecatalystsweresimilarbecausebotharedehydrogenationreactions.Benzeneproductionwassignificantlyhigheronthehydrochlorinatedcatalystthanontheothercatalysts,anditshydrocrackingactivitywasthelowest,whichisagoodcharacteristicforprocessingcatalystswherecrackingisundesired.
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