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OALib Journal期刊
ISSN: 2333-9721
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NiMo/γ-Al2O3CatalystsfromNiHeteropolyoxomolybdateandEffectofAluminaModificationbyB,Co,orNi
DOI: 10.1016/S1872-2067(11)60376-8, PP. 952-961
Keywords: nickel,cobalt,boron,nickelheteropolyoxomolybdate,hydrodesulfurization
Abstract:
？AhydrotreatingNiMo/γ-Al2O3catalyst(12wt%Moand1.1wt%Ni)waspreparedbyimpregnationofthesupportwiththeAnderson-typeheteropolyoxomolybdate(NH4)4Ni(OH)6Mo6O18.Beforeimpregnationofthesupport,itwasmodifiedwithanaqueoussolutionofH3BO3,Co(NO3)2,orNi(NO3)2.ThecatalystswereinvestigatedusingN2adsorption,O2chemisorption,X-raydiffraction,UV-Visspectroscopy,Fouriertransforminfraredspectroscopy,temperature-programmedreduction,temperature-programmeddesorption,andX-rayphotoelectronspectroscopy.TheadditionofCo,Ni,orBinfluencedtheAl2O3phasecompositionandgaveincreasedcatalyticactivityfor1-benzothiophenehydrodesulfurization(HDS).X-rayphotoelectronspectroscopyconfirmedthatthepriorloadingofNi,CoorBincreasedthedegreeofsulfidationoftheNiMo/γ-Al2O3catalysts.ThehighestHDSactivitywasobservedwiththeNiMo/γ-Al2O3catalystwithpriorloadedNi.
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