To solve the problem of heavy oil demulsification difficulties in Liaohe Oilfield, phenolamine resin initiator was synthesized from p-trifluoromethyl phenol, and then FB series fluorinated polyether demulsifiers were synthesized by block polymerization using ethylene oxide (EO) and propylene oxide (PO) as raw materials. The demulsifiers were characterized by infrared spectroscopy, cloud point, hydrophilic–lipophilic balance (HLB) value, and surface tension. The demulsifying and dehydrating properties were tested by demulsifying and dehydrating experiments, the demulsification mechanism was analyzed by the microscopic demulsification process test, and the influence of demulsifier addition and demulsifying temperature on demulsifying performance was also studied. The results showed that under the condition of the optimum demulsification temperature of 60 °C and the optimum demulsifier dosage of 100 mg/L, the water removal (%) of fluorinated polyether demulsifier of FB 4 was the highest, and the overall water removal (%) of 50 mL crude oil emulsion in Liaohe Oilfield reached 90.33% within 2 h, which was better than the current demulsifier used in Liaohe crude oil.

中文翻译：

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一种新型重油乳化破乳用氟化聚醚破乳剂的合成与研究

为了解决在辽河油田重油破乳难的问题，phenolamine树脂引发剂合成自p-三氟甲基苯酚，然后以环氧乙烷（EO）和环氧丙烷（PO）为原料，通过嵌段聚合合成了FB系列氟化聚醚破乳剂。通过红外光谱、浊点、亲水亲油平衡 (HLB) 值和表面张力对破乳剂进行表征。通过破乳脱水实验测试了破乳脱水性能，通过显微破乳工艺试验分析了破乳机理，并研究了破乳剂添加量和破乳温度对破乳性能的影响。结果表明，在最佳破乳温度为60℃、最佳破乳剂用量为100mg/L的条件下，