资源描述：
《fcc汽油脱硫用交联hec渗透汽化膜的性能评价_渠慧敏》由会员上传分享，免费在线阅读，更多相关内容在教育资源-天天文库。
1、石油学报(石油加工)2008年4月ACTAPETROLEISINICA(PETROLEUMPROCESSINGSECTION)第24卷第2期文章编号:100128719(2008)0220232205FCC汽油脱硫用交联HEC渗透汽化膜的性能评价11,2211渠慧敏,孔瑛,张玉忠,杨金荣,林立刚(1.中国石油大学重质油国家重点实验室,山东东营257601;2.天津工业大学教育部中空纤维膜重点实验室,天津300160)摘要:采用溶液浇铸法制备FCC汽油脱硫用交联HEC渗透汽化膜,并对膜结构进行红外表征。分别用硫质量分数
2、为225μg/g和1050μg/g的2种FCC汽油评价交联HEC渗透汽化膜的脱硫性能,探讨了料液的含硫质量分数、硫化物组成、脱硫温度对该渗透汽化膜渗透通量和富集因子的影响。结果表明,料液的硫质量分数越高、硫化物组成越复杂,HEC渗透汽化膜的富集因子就越低,渗透通量就越高。随着脱硫温度的升高,渗透通量一直增加,而富集因子出现极大值。富集因子最大时对应的温度为渗透汽化膜的最佳脱硫温度。对于含硫225μg/g和1050μg/g的FCC汽油,采用交联HEC渗透汽化膜脱硫的最佳温度分别为368K和383K,因此其较适用于低硫F
3、CC汽油的脱硫。对于含硫225μg/g的FCC汽油,交联HEC渗透汽化膜的富集因子达到4.5。关键词:渗透汽化;交联HEC膜;FCC汽油;脱硫性能中图分类号:TE063文献标识码: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
