大庆原油降凝降黏剂合成及性能评价  

SYNTHESIS AND PERFORMANCE EVALUATION OF DAQING CRUDE OIL POUR POINT DEPRESSANT AND VISCOSITY REDUCER

作　　者：靳璐璐 龙小柱 Jin Lulu;Long Xiaozhu(School of Chemical Engineering, Shenyang University of Chemical Technology, Shenyang 110000, Liaoning, China)

机构地区：[1]沈阳化工大学化学工程学院,辽宁沈阳110000

出　　处：《精细石油化工》2020年第5期31-34,共4页Speciality Petrochemicals

摘　　要：以甲基丙烯酸(MA)、十四醇、二十二醇、苯乙烯(ST)、富马酸(FA)为原料制备了具有降凝降黏作用的三元共聚物。最佳酯化工艺条件为:甲基丙烯酸与混合醇[n(C14醇)∶n(C22醇)=3∶1]摩尔比为1∶1.4,携水剂用量为40%,催化剂质量分数为0.5%;最佳聚合工艺条件为:甲基丙烯酸混合醇酯/苯乙烯/富马酸(摩尔比)为6∶2∶2,引发剂的量为0.8%,聚合反应温度为80℃,聚合反应时间为3.5 h。加剂量为0.4%时,大庆原油凝固点可降低14℃,降黏率可达66.02%。Using methacrylic acid(MA),myristyl alcohol,behenyl alcohol,styrene(ST),and fumaric acid(FA)as raw materials,a terpolymer with pour point and viscosity reduction effects was prepared.IR analysis showed that the functional group structure of the synthesized product was consistent with the target product.The optimal process conditions for esterification,the molar ratio of methacrylic acid and mixed alcohol[n(C14 alcohol)∶n(C22 alcohol)=3∶1]is 1∶1.4,the amount of water-carrying agent is 40%,and the mass fraction of catalyst is 0.5%.The optimal process conditions for polymerization,the molar ratio of methacrylic acid mixed alcohol ester to styrene and fumaric acid is 6∶2∶2,the amount of initiator is 0.8%,the polymerization temperature is 80℃,and the polymerization time is 3.5 h.When the dosage is 0.4%,the freezing point of Daqing crude oil can be reduced by 14℃,and the viscosity reduction rate can reach 66.02%.

关 键 词：降凝降黏 三元共聚物 大庆原油 降黏率 

分 类 号：TE869[石油与天然气工程—油气储运工程]