高蜡原油微波破乳乙酸钠-聚乙二醇添加剂的研究

采用乙酸钠和聚乙二醇2000复配添加剂对大庆高蜡原油破乳效果进行了研究。结果表明，利用SH9402微波反应系统，含水率为50%的大庆石蜡基高蜡原油乳状液在辐射功率为225 W、系统压力为0.7 MPa、恒压时间为7 min、剂油质量比为0.05、乙酸钠和聚乙二醇2000质量比为3：7时，脱水率达到96.39%，盐回收率达93.98%。与单一使用乙酸钠相比，不仅破乳效率高，而且乙酸钠用量降低，乙酸钠回收率提高，解决了乙酸钠残留的问题。

STUDY ON THE MICROWAVE-DEMULSIFICATION OF HIGH WAX CRUDE OIL USING SODIUM ACETATE-POLYETHYLENE GLYCOL ADDITIVE

The demulsification performance of Daqing crude oil with high wax content was studied using sodium acetate (NaAC) and polyethylene glycol (PEG) 2000 compound additive. Test results showed that when the emulsion feed was a Daqing high wax crude containing 50% water, using SH9402 microwave reaction system under the conditions of a microwave power of 225 W, a system pressure of 0.7 MPa, a reaction time of 7 min, an additive/oil mass ratio of 0.05 and a NaAC/PEG2000 mass ratio of 3/7, the dehydration rate reached 96.39% and the salt recovery rate was 93.98%. Compared with using single NaAC as additive, not only the efficiency of demulsification was enhanced, but also the dosage of NaAC added was decreased and the NaAC recovery rate was increased.