聚硅氧烷原油破乳剂的合成与应用  

Synthesis and Application of Comb-like Polyorganosiloxane Demulsifier

作　　者：陈诚[1] 郭睿[1] 王博涛[2] 

机构地区：[1]陕西科技大学化学与化工学院,陕西西安710021 [2]陕西能源职业技术学院,陕西咸阳712000

出　　处：《油田化学》2012年第3期331-334,共4页Oilfield Chemistry

摘　　要：以含氢硅油为主链,在反应温度90℃,反应时间5.5 h,催化剂用量35 mg/L的条件下与甲基丙酸(MAA)、甲基丙烯酸甲酯(MMA)、丙烯酸丁酯(BA)通过氢化加成反应,合成了具有梳型结构的聚硅氧烷原油破乳剂。本文通过单因素实验考察MAA、MMA、BA不同摩尔比对长庆油田宝塔区原油破乳效果的影响,确定最佳MAA、MMA、BA摩尔比为4∶3∶2。在70℃、破乳剂加量100 mg/L的条件下,处理120 min后原油的脱水率达87.46%。在破乳条件相同的情况下,将该破乳剂与破乳剂DB-2000按质量比8∶2复配使用,原油脱水率可达90.58%。所合成的破乳剂具有良好的应用效果。Comb-like polyorganosiloxane demulsifier was synthesized by hydrosilylation of Hydrogen silicone oil as the main link with methacrylic acid（MAA）、 methyl methacrylate（MMA）、n-butyl acrylate（BA） at the condition of reaction temperature of 90℃, reaction time of 5.5 h and the catalyst dosage of 35 mg/L. According to the single factor examination, the effects of the molar ratio of MAA, MMA and BA on the dehydration rate of Changqing Baota area oil were investigated, and the optimal molar ratio of MAA, MMA and BA was obtained, being of 4 ： 3 ： 2. The dehydration rate of Changqing Baota area oil reached up to 87.46%, after treated by the obtaiued product at the dosage of 100 mg/L at 70℃ for 120 min. At the same condition, when the product was conpounded with demulsifier DB-2000 at the mass ratio of 8：2, dehydration rate could reach up to 90.58%.

关 键 词：聚硅氧烷破乳剂 含氢硅油 甲基丙酸 甲基丙烯酸甲酯 丙烯酸丁酯 复配破乳剂 

分 类 号：O634.41[理学—高分子化学] TE39[理学—化学]