基于N-芳基取代马来酰亚胺稠油降粘剂的合成及评价

发布时间：2018-04-24 20:24

  本文选题：稠油 + N-芳基取代马来酰亚胺　； 参考：《西南石油大学》2015年硕士论文

【摘要】：稠油粘度高、流动性差,严重影响到稠油的开采和集输。因此稠油降粘技术在稠油开采和集输过程中广泛采用,油溶性降粘剂的开发及在稠油集输过程中的应用是当前的重要研究方向之一。 论文合成了N-苯基马来酰亚胺、N-苄基马来酰亚胺和N-对羟基苯基马来酰亚胺三种有机物,并将这三种N-芳基取代马来酰亚胺分别与甲基丙烯酸十八酯和丙烯酰胺进行三元共聚,合成了三种油溶性降粘剂,通过红外光谱和核磁氢谱对单体及聚合物进行了结构表征。 三种降粘剂中N-苄基马来酰亚胺/甲基丙烯酸十八酯/丙烯酰胺三元共聚物油溶性降粘剂对新疆风城114#稠油的降粘效果较好,通过正交实验及单因素实验确定了该降粘剂的聚合反应条件为：n(甲基丙烯酸十八酯)：n(N-苄基马来酰亚胺)：n(丙烯酰胺)=10：4：3,引发剂(AIBN)加量为单体总质量的1%,反应温度为85℃,反应时间为5h。选取柴油作为降粘剂溶剂,在降粘剂加量为1000mg/L,稠油温度为50℃的条件下,降粘率可达36.1%。将该降粘剂与表面活性剂十二烷基苯磺酸钠按质量比为1：2复配时,可将降粘率提升到43.3%。 最后,对油溶性降粘剂降粘机理进行了初步探究,通过对照加剂前后胶质和沥青质的红外谱图、电镜照片以及紫外可见分光光度计测定降粘剂对沥青质的分散效率,表明降粘剂能够减弱胶质、沥青质分子之间的氢键,进而削弱了它们之间的聚集作用,使沥青质聚集体得到明显的分散,稠油形态变得相对疏松,且在降粘剂分子中引入具有拆分作用的苯环可以提高降粘剂分散沥青质的效率,进而降低稠油粘度。
[Abstract]:Heavy oil has high viscosity and poor fluidity, which seriously affects the recovery and gathering of heavy oil. Therefore, viscous oil viscosity reduction technology is widely used in heavy oil recovery and gathering and transportation process. The development of oil-soluble viscosity reducer and its application in heavy oil gathering and transportation process is one of the important research directions at present. In this paper, N- phenylmaleimide (N- phenylmaleimide) and N- (p-hydroxyphenyl) maleimide (N- (p-hydroxyphenyl) maleimide) were synthesized, and the three N-arylsubstituted maleimides were copolymerized with octadecyl methacrylate and acrylamide, respectively. Three kinds of oil-soluble viscosity reducers were synthesized and characterized by IR and NMR spectra. The oil-soluble viscosity reducer of N-benzylmaleimide / octadecyl methacrylate / acrylamide terpolymer has a good viscosity reduction effect on the heavy oil in Fengcheng, Xinjiang, and the viscosity reducing agent of N- benzyl Maleimide / octadecyl methacrylate / acrylamide terpolymer is better. The polymerization conditions of the viscosity reducer were determined by orthogonal experiment and single factor experiment. The reaction temperature was 85 鈩，

本文编号：1798104