摘要： 以二乙烯三胺和丙烯酸甲酯为原料合成2.0G聚酰胺-胺，用自制季铵化试剂QT对其进行改性，得到末端带正电荷的改性聚酰胺-胺季铵盐反相破乳剂Q-PAMAM，并对其进行了红外色谱表征。利用瓶试法对Q-PAMAM进行了破乳性能评价，结果显示，Q-PAMAM与破乳剂协同使用时，当用量分别为133、200 mg/L时，在破乳温度85℃，破乳时间60 min条件下，对超稠原油的脱水率达到96.6%，且油水界面紧、齐，乳化层厚度仅为0.2%。

关键词: 树枝状聚酰胺-胺, 改性, 季铵化, 原油破乳

Abstract: Diethylenetriamine and methyl acrylate as raw materials have been used for the synthesis of 2.0G polya-mide-amine,modified with homemade quaternization reagent QT to modified 2.0G polyamide-amine,so as to obtain a positively charged modified polyamide-amine quaternary ammonium salt inverse demulsifier Q-PAMAM,and char-acterized by infrared spectroscopy. The demulsification performance of Q-PAMAM is evaluated by bottle tests. The results show that when Q-PAMAM is used synergistically with demulsifiers under the following conditions:the dos-ages are 133 mg/L and 200 mg/L,respectively,demulsifying temperature is 85℃,and demulsifying time 60 min,the super-heavy crude oil dehydration rate reaches 96.6%,and the oil and water interface is tight,neat,and the thickness of the emulsion layer is only 0.2%.

Key words: dendritic polyamidoamine, modified, quaterion, crude oil demulsifier

中图分类号: 

• TE357.43