改性超支化破乳剂的合成及其破乳性能评价  

Synthesis and Demulsification Performance Evaluation of Modified Hyperbranched Demulsifier

作　　者：何德磊[1] 万永乾 聂亚 刘磊[1] 严涵 HE Delei;WAN Yongqian;NIE Ya;LIU Lei;YAN Han(China Oilfield Services Limited,Shenzhen 518067,China;College of Chemical and Environmental Engineering,Yangtze University,Jingzhou 434023,China)

机构地区：[1]中海油田服务股份有限公司,广东深圳518067 [2]长江大学化学与环境工程学院,湖北荆州434023

出　　处：《合成化学》2023年第2期124-129,共6页Chinese Journal of Synthetic Chemistry

摘　　要：采用新癸酰氯(C10H19CIO)对超支化聚乙烯亚胺(HPEI)进行改性,合成了双亲性超支化破乳剂HPEI-C10,并对其化学组分、热稳定性及润湿性进行了表征。考察了破乳剂的质量浓度、破乳温度、沉降时间以及pH对HPEI和HPEI-C10的破乳效率的影响,并借助偏光显微镜观察破乳过程。结果表明:在质量浓度为50 mg·L^(-1)、破乳温度为20℃、沉降时间为30 min以及pH为6的条件下,HPEI-C10破乳效率可达91.95%。HPEI-C10在破乳温度为20~60℃时的破乳效率均大于90.00%。与HPEI相比,HPEI-C10具有添加量少、适用温度范围广和沉降时间短等优势,为HPEI-C10的广泛应用提供了数据支撑。The study modified hyperbranched polyethylenimine(HPEI) with neodecanoyl chloride(C10H19CIO), and synthesized the amphiphilic hyperbranched demulsifier HPEI-C10. Its chemical components, thermal stability and wettability were characterized. The effects of demulsifiers concentration, demulsification temperature, settling time and pH on the demulsification efficiency of HPEI and HPEI-C10were investigated, and the demulsification process was observed by polarizing microscope. The demulsification experiment results show that the demulsification efficiency of HPEI-C10can reach 91.95% when the mass concentration of HPEI-C10is 50 mg·L^(-1), demulsification temperature is 20 ℃,settling time is 30 min and the pH is 6. In addition, when the demulsification temperature is 20~60 ℃, the demulsification efficiency is more than 90.00%. Compared with HPEI, HPEI-C10has the advantages of small addition amount, wide temperature range, short settling time, which provides experimental support for its wide use.

关 键 词：O/W乳状液 超支化聚合物 超支化聚乙烯亚胺 双亲性 疏水性 高效破乳剂 

分 类 号：TE39[石油与天然气工程—油气田开发工程]