共聚物ME-TA-MA的合成及对盘锦原油的降凝降粘作用  

Synthesis of ME-TA-MA and its effects on pour point depression and viscosity reduction of Panjin crude oil

作　　者：龙小柱[1] 张爽[1] 王肖肖[1] 唐磊[1] 王闯[1] 

机构地区：[1]沈阳化工大学化学工程学院,辽宁沈阳110142

出　　处：《化工科技》2013年第3期39-43,共5页Science & Technology in Chemical Industry

摘　　要：根据盘锦原油的性质,成功研制了以甲基丙烯酸、十四醇、马来酸酐为原料的共聚物ME-TA-MA降凝降粘剂。单因素实验确定了合适的工艺条件。酯化:n(十四醇)∶n(甲基丙烯酸)=1.25∶1,m(催化剂):m(甲基丙烯酸+十四醇)=2%,m(溶剂)∶m(甲基丙烯酸+十四醇)=50%;聚合:n(马来酸酐)∶n(酯化产物)=1∶1,m(引发剂):(甲基丙烯酸十四酯+马来酸酐)=1.5%,m(溶剂)∶m(甲基丙烯酸十四酯+马来酸酐)=50%,聚合温度80℃,聚合时间3h。IR结果表明,所制备产物的官能团结构与设计的目标产物相符。将最佳条件下合成的产物以m(降凝剂)∶m(原油)=0.23%的加剂量加入到盘锦原油中,凝点可降低13℃,粘度可降低61.33%。Aimed at the nature of Panjin crude oil,apour point depressant and viscosity reducer-META-MA was successfully synthesized from methacrylic acid（ME）-tetradecyl alcohol（TA）-maleic anhydride（MA）.Through the single factor experiments,the optimal conditions for preparing ME-TAMA are obtained：For esterification reaction：the molar ratio of methacrylic acid to tetradecyl alcohol is 1∶1.25,with catalyst（p-toluenesulfonic acid）of 2.0% and solvent（toluene）50%;For polymerization reaction：the molar ratio of tetradecyl methyl-acrylate to maleic anhydride of 1∶1,with initiator（BPO）of 1.5% and solvent（toluene）of 50wt%,and polymerization time is 3h,polymerization temperature of 80℃.The infrared analysis showed that the molecular functional group of the prepared products matches with the designed target products（copolymer of tetradecyl methyl-acrylate and maleic anhydride）.Solidifying point can be lowered by 13℃ and viscosity lowered by 63.33% when 0.23% of the pour point depressant and viscosity reducer（ME-TA-MA）was added in the Panjin crude oil.

关 键 词：甲基丙烯酸 十四醇 马来酸酐 盘锦原油 降凝减粘 

分 类 号：TQ314.2[化学工程—高聚物工业]