超支化聚甲基丙烯酸环氧丙酯破乳剂的破乳性能  

DEMULSIFICATION PERFORMANCE OF HYPERBRANCHED EPOXY PROPYL POLYMETHACRYLATE DEMULSIFIER

作　　者：徐明飞[1] 刘磊[1] 何德磊[1] 万永乾 Xu Mingfei;Liu Lei;He Delei;Wang Yongqian(China Oilfield Services Limited,Shenzhen 518067,Guangdong,China)

机构地区：[1]中海油田服务股份有限公司,广东深圳518067

出　　处：《精细石油化工》2022年第5期6-10,共5页Speciality Petrochemicals

基　　金：中海油南海东部油田重大科技专项(CCL2019SZPS0503)。

摘　　要：报道了超支化聚甲基丙烯酸环氧丙酯破乳剂在O/W型乳状液中的破乳效果。以甲基丙烯酸环氧丙酯修饰超支化聚酰胺-胺,得到超支化聚甲基丙烯酸环氧丙酯(HPA-G)破乳剂。采用红外光谱、核磁共振表征其结构,通过考察端基取代数、温度、破乳时间及添加量对破乳效果的影响,筛选出添加量少且破乳时间短的优良超支化聚合物破乳剂。结果表明,多取代产物HPA-G5在温度60℃,破乳时间60 min,加量为2 g/L条件下,能实现较快速度破乳,HPA-G5脱油率能达到88%,满足工业需求。The demulsification effect of hyperbranched epoxypropyl polymethacrylate demulsifier in O/W emulsion was reported.Hyperbranched poly(methyl acrylic epoxy propyl ester(HPA-G)demulsifier was obtained by the modification of hyperbranched polyamide-amine with epoxy propyl methacrylate.Its structure was characterized by infrared spectrum(IR)and nuclear magnetic resonance(NMR).By examining the effect of end group substitution number,temperature,demulsification time and the addition amount,the hyperbranched demulsifier with less addition amount and short demulsification time was screened.The results show that HPA-G5 can achieve rapid and effective demulsification under the conditions of 60℃,demulsification time of 60 min,and dosage of 2 g/L,and the oil removal rate of HPA-G5 can reach 87%,which meets the industrial demand.

关 键 词：超支化聚酰胺-胺 破乳 脱油率 O/W型乳状液 

分 类 号：TE39[石油与天然气工程—油气田开发工程]