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1、石油学报(石油加工)2006年6月ACTAPETROLEISINICA(PETROLEUMPROCESSINGSECTION)第22卷第3期文章编号:10018719(2006)03009106醇解型柴油降凝剂的合成及其应用SYNTHESISOFALCOHOLYSISDEPRESSANTANDITSAPPLICATIONFORDIESELFUEL12111于海莲,齐邦峰,王璐璐,曹祖宾,胡震12111YUHailian,QIBangfeng,WANGLulu,CAOZubin,HU
2、Zhen(1.辽宁石油化工大学石油化工学院,辽宁抚顺113001;2.中国石化抚顺石油化工研究院,辽宁抚顺113003)(1.SchoolofPetrochemicalEngineering,LiaoningUniversityofPetroleum&ChemicalTechnology,Fushun113001,China;2.FushunResearchInstituteofPetroleum&Petrochemicals,SINOPEC,Fushun113003,China)摘要:合成了丙烯酸酯(AAE)、马来酸酐
3、(MA)和醋酸乙烯酯(EA)三元共聚物的醇解型柴油降凝剂,考察了该降凝剂的降凝助滤效果及最佳反应条件,初步讨论了其降凝机理。以0.6%(质量分数,以下同)的对苯二酚为阻聚剂,1.5%的对甲苯磺酸为催化剂,n(十六醇)n(丙烯酸)=1.01.6,合成AAE;以甲苯为溶剂,1.2%的过氧化苯甲酰为引发剂,n(MA)n(EA)n(AAE)=144,恒温85,聚合7h,得三元共聚物;以1.5%的对甲苯磺酸为催化剂,用碳数16的脂肪醇醇解三元共聚物,得到醇解型降凝剂。结果表明,当降凝剂添加量为500g/g时,可使抚
4、顺石油一厂、二厂、三厂5#柴油的凝点分别降低16、19、18,冷滤点分别降低5、7、6。关键词:醇解型柴油降凝剂;合成;凝点;冷滤点;降凝机理中图分类号:TE624.8+1文献标识码:AAbstract:Thesynthesisofthealcoholysistripolymerdepressantfordieselfuelswithmaleicanhydride(MA),ethyleneacetate(EA)andacrylicalkylester(AAE)werecarriedout.Theeffecto
5、fSPandCFPPdepression,optimumreactionconditionandthemechanismofthedepressantwereinvestigated.TheAAEwasproducedbyusingpbenezenedride(0.6%massfraction),cetylalcoholandacrylicacid(moleratioof1.01.6)asrawmaterials,pmethylbenezenesulfonicacid(1.5%massfraction)asthec
6、atalyst.Thetripolymerwasproducedbyusingmethylbezeneassolvents,MA,EAandAAE(moleratioof144)asrawmaterials,dibenzoylperoxide(1.2%massfraction)asinitiator,attheconstanttemperatureof85andpolymerizationtimeof7h.Thealcoholysistripolymerwasalcoholyzedbycetylalcoholund
7、erthepresenceofpmethylbenezenesulfonicacid(1.5%massfraction).Atthesaidcopolymer#dosageof500g/g,theSPofthe5dieselfuelsfromFushunNumber1Refinerywaslowered#by16andtheCFPP5;theSPofthe5dieselfuelsfromFushunNumber2Refinerywas#loweredby19andtheCFPP7;theSPofthe5die
8、selfuelsfromFushunNumber3Refinerywasloweredby18andtheCFPP6.Keywords:alcoholysisdepressantfordieselfuel;synthesis;solidificationpoint(SP);coldfilterpluggingpo
