摘要
Thisstudyprovidesadetailedreportonthesynthesisofsphericalactivatedcarbonwithmesoporousstructureusingasolublelowmolecularweightphenolicresolprecursorthroughanammoniumalginateassistedsol–gelmethod.TheeffectsofcalcinatingtemperatureandtheadditionofCaCO3asapore-enlargingagentontexturestructureandcatalyticperformanceinisobutanedehydrogenationtoisobutenewereinvestigated.CharacterizationofN2sorption,mechanicalstrengthtests,andopticalphotographsconfirmedthattheobtainedcarbonmaterialshadhighmechanicalstrength,agooddegreeofsphericity,andalargesurfacearea.IntroducingCaCO3asapore-enlargingagentduringthepreparationprocesspromotedtheformationofamesoporousstructureofcarbonspheresandevidentlyincreasedthesurfaceareaandoxygencontent,whichcanimproveisobutaneconversionandisobuteneselectivityofthesecarbonspheres.Theconversionofisobutanereachedupto28%forthissphericalactivatedcarbon,andtheselectivityofisobutenereachedupto96%.Isobutaneconversionincreasedwithanincreaseincalcinationtemperatureduetoanincreaseintheoxygencontent,whereastheselectivityofisobutenedecreasedduetotheslightdecreaseinthespecificsurfacearea.
出版日期
2018年04月14日(中国期刊网平台首次上网日期,不代表论文的发表时间)