超支化聚合物破乳性能及机理的研究  

Study on demulsification performance and mechanism of hyperbranched polymer

作　　者：张丽锋 詹宁宁 秦立娟 赵新星 周立山 滕厚开 ZHANG Li-feng;ZHAN Ning-ning;QIN Li-juan;ZHAO Xin-xing;ZHOU Li-shan;TENG Hou-kai(School of Chemical Engineering&Technology,Tianjin University,Tianjin 300072,China;CNOOC Tianjin Chemical Research and Design Institute Company Limited,Tianjin 300131,China;CNOOC Energy Technology&Service Limited-Drilling&Production Co.,Tianjin 300450,China;School of Chemical Engineering and Technology,Hebei University of Technology,Tianjin 300132,China)

机构地区：[1]天津大学化工学院,天津300072 [2]中海油天津化工研究设计院有限公司,天津300131 [3]中海油能源发展股份有限公司工程技术分公司,天津300450 [4]河北工业大学化工学院,天津300132

出　　处：《工业用水与废水》2021年第3期41-45,共5页Industrial Water & Wastewater

基　　金：中国博士后科学基金项目(2019M661034)。

摘　　要：针对瓶试法评定破乳剂存在的精确性较差、人为误差等不确定性问题,优选室内合成的具有合适取代度的超支化聚醚型破乳剂(HPG-MA)和具有合适多乙烯多胺的超支化聚酰胺-胺型破乳剂(h-PAMAM),采用紫外可见分光光度法测定其破乳性能。首次采用动态光散射法和紫外-可见分光光度法,并结合界面张力的变化规律,详细研究了其破乳机理。结果表明,2种超支化聚合物破乳剂的脱油率均高于85%,超支化聚合物破乳剂的破乳机理为絮凝聚结机理和顶替置换机理。In view of the uncertainty of bottle test method in evaluating demulsifier,which presents with poor accuracy and human error,HPG-MA demulsifiers with suitable values of degree of substitution and h-PAMAM demulsifiers with proper polyethylene polyamine,which synthesized in laboratory,were selected,meanwhile,its demulsification performance were determined by ultraviolet-visible spectrophotometry method.Combining with the change rule of interfacial tension,the demulsification performance of the said two kinds of demulsifiers was studied in detail using dynamic light scattering-visible spectrophotometry method.The results showed that,the oil removal rates of the two kinds of hyperbranched polymer demulsifiers were both above 85%,and the demulsification mechanism of them were flocculation and replacement.

关 键 词：O/W型乳状液 超支化聚醚型破乳剂 超支化聚酰胺-胺型破乳剂 破乳机理 

分 类 号：X703.5[环境科学与工程—环境工程] X741