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1、石油學報(石油加工)2008年4月ACTAPETROLEISINICA(PETROLEUMPROCESSINGSECTION)第24卷第2期文章編號:100128719(2008)0220232205FCC汽油脫硫用交聯(lián)HEC滲透汽化膜的性能評價11,2211渠慧敏,孔瑛,張玉忠,楊金榮,林立剛(1.中國石油大學重質(zhì)油國家重點實驗室,山東東營257601;2.天津工業(yè)大學教育部中空纖維膜重點實驗室,天津300160)摘要:采用溶液澆鑄法制備FCC汽油脫硫用交聯(lián)HEC滲透汽化膜,并對膜結(jié)構進行紅外表征。分別用硫質(zhì)量分數(shù)
2、為225μg/g和1050μg/g的2種FCC汽油評價交聯(lián)HEC滲透汽化膜的脫硫性能,探討了料液的含硫質(zhì)量分數(shù)、硫化物組成、脫硫溫度對該滲透汽化膜滲透通量和富集因子的影響。結(jié)果表明,料液的硫質(zhì)量分數(shù)越高、硫化物組成越復雜,HEC滲透汽化膜的富集因子就越低,滲透通量就越高。隨著脫硫溫度的升高,滲透通量一直增加,而富集因子出現(xiàn)極大值。富集因子最大時對應的溫度為滲透汽化膜的最佳脫硫溫度。對于含硫225μg/g和1050μg/g的FCC汽油,采用交聯(lián)HEC滲透汽化膜脫硫的最佳溫度分別為368K和383K,因此其較適用于低硫F
3、CC汽油的脫硫。對于含硫225μg/g的FCC汽油,交聯(lián)HEC滲透汽化膜的富集因子達到4.5。關鍵詞:滲透汽化;交聯(lián)HEC膜;FCC汽油;脫硫性能中圖分類號:TE063文獻標識碼:APROPERTYEVALUATTIONOFCROSSLINKEDHECPERVAPORATIONMEMBRANEFORFCCGASOLINEDESULFURIZATION11,2211QUHui2min,KONGYing,ZHANGYu2zhong,YANGJin2rong,LINLi2gang(1.StateKeyLaboratoryo
4、fHeavyOilProcessing,ChinaUniversityofPetroleum,Dongying257601,China;2.KeyLaboratoryofHollowFibreMembraneMaterials&MembraneProcess,TianjinPolytechnicUniversity,Tianjin300160,China)Abstract:ThecrosslinkedHECpervaporationmembraneforFCCgasolinedesulfurizationwaspre
5、paredbyacastingmethod,andthemembranestructurewascharacterizedbyIRspectroscopy.Theeffectsofsulfurcompositionandsulfurmassfractionoffeedgasoline,desulfurizationtemperatureonthepermeationfluxandenrichmentfactorofthemembranewereinvestigated,inwhichtwoFCCgasolinesam
6、pleswiththesulfurmassfractionsof225μg/gand1050μg/g,respectively,wereusedasthefeed.Theresultsshowedthatthehighersulfurmassfractionormorecomplexsulfurcompositioninfeedcouldmakeenrichmentfactordecreaseandpermeationfluxincrease.Withthedesulfurizationtemperatureincr
7、easing,thepermeationfluxincreased,andamaximumvalueoftheenrichmentfactoroccurred.Thedesulfurizationtemperature,atwhichthemaximumenrichmentfactorwasobtained,wascalledoptimalone.Theoptimaldesulfurizationtemperatureswere368Kand383KforthetwoFCCgasolinesampleswiththe
8、sulfurmassfractionsof225μg/gand1050μg/g,respectively,fromwhichitisindicatedthatthecrosslinkedHECmembranewassuitabletothedesulfurizationofFCCgasolinewithlowsulfurlevel.Forthe
