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以脂肪醇类聚醚(BP2040)和丙烯酸为原料,苯磺酸为催化剂,二甲苯为溶剂,过氧化苯甲酰(BPO)为引发剂,进行酯化—聚合反应,一步法合成了高分子低温原油破乳剂。探究了反应的最佳合成工艺,并针对某炼油厂含水35.2%的石蜡基原油的合成产品进行了低温破乳性能评价。研究结果表明:m(BP2040)∶m(丙烯酸)=5∶1,催化剂质量分数为0.6%,引发剂质量分数为0.3%,酯化时间为4 h,聚合时间为4 h时,合成产品的破乳性能优于单剂BP2040。产品在60℃下的脱水率为99.10%,与当前炼厂100℃以上脱水效率相当,达到低温破乳的目的。
The fatty alcohol polyether (BP2040) and acrylic acid as raw materials, benzene sulfonic acid as catalyst, xylene as solvent, benzoyl peroxide (BPO) as initiator, esterification - polymerization, one- Low temperature crude oil demulsifier. The optimum synthesis process of the reaction was explored. The low temperature demulsification performance of synthetic products containing 35.2% paraffinic crude oil in a refinery was evaluated. The results show that when m (BP2040): m (acrylic acid) = 5:1, the mass fraction of catalyst 0.6%, the initiator mass fraction 0.3%, the esterification time 4 h and the polymerization time 4 h, Demulsification performance is better than a single dose of BP2040. The dehydration rate of the product at 60 ℃ is 99.10%, which is equivalent to the dewatering efficiency of over 100 ℃ in the current refinery and achieves the purpose of low temperature demulsification.