超支化聚酰胺-胺的合成及其在O/W型乳状液的破乳应用  

Preparation of hyperbranched poly(amido amine) and its application to demulsification of oil-in-water emulsions

作　　者：李松涛 赵谨 张丽锋 LI Songtao;ZHAO Jin;ZHANG Lifeng(China BlueChemical Ltd.,Beijing 100029,China;CNOOC Tianjin Chemical Research and Design Institute Company Limited,Tianjin 300131,China;School of Chemical Engineering&Technology,Tianjin University,Tianjin 300072,China)

机构地区：[1]中海石油化学股份有限公司,北京100029 [2]中海油天津化工研究设计院有限公司,天津300131 [3]天津大学化工学院,天津300072

出　　处：《化工进展》2023年第1期401-408,共8页Chemical Industry and Engineering Progress

基　　金：中国博士后科学基金(2019M661034);中海油集团公司科研项目(CNOOC-KJ145FZDXM00TJY002TJY2021)。

摘　　要：采用“一锅法”,通过Michael加成法以及逐步升温缩聚法,调节起始剂和丙烯酸甲酯的比例,合成了一系列超支化聚酰胺-胺(h-PAMAM)破乳剂,并应用数字化技术控制产品质量更加稳定,考察了添加量、破乳温度及沉降时间对破乳性能的影响,并探究界面张力和破乳过程中乳状液透射率与粒径的变化,分析其破乳机理。结果表明,在60℃、沉降时间为30min、破乳剂的添加量为40mg/L时,其脱油率达到95%。与商用破乳剂相比,超支化聚酰胺-胺因具有独特的超支化多位点以及酰胺基团和伯胺基团结构,用作破乳剂时界面活性高、沉降时间短。In this work,with the application of one-pot synthesis based on Michael addition and temperature-programmed reaction,a series of h-PAMAM samples were successfully synthesized through adjusting the ratio of methyl acrylate(MA)to initiator.Moreover,the application of digital technology made the quality of product more reliable.The effects of demulsifier concentration,temperature and settling time on the performance of demulsifier were systematically investigated.Meanwhile,the research of interfacial tension,the real-time size and transmittance changes of oil droplets in the demulsification were also explored to analyze its demulsification mechanism.The results indicated that the oil removal rate could reach 95%with condition of 40mg/L,30min and 60℃.Compared with commercial demulsifiers,h-PAMAM exhibited high interfacial activity and short settling time because of the unique hyperbranched multipoint structures,amido and amine groups.

关 键 词：超支化聚合物 破乳剂 破乳机理 数字化 

分 类 号：TE39[石油与天然气工程—油气田开发工程]