摘要
针对新疆稠油黏度大、流动性差的特点,合成了具有苯基和酰胺基的聚酯型MAS系列降黏剂,采用红外光谱仪(FTIR)对合成产物进行了分析表征,并对MAS系列降黏剂用于新疆稠油的降黏效果进行研究评定。结果表明,具有乙酸乙酯主链的MAS5和具有高碳丙烯酸酯(C_(18))主链的MAS4的降黏效果较好。MAS5中的酰胺基团可与稠油中的胶质沥青质发生相互作用;苯基会影响稠环芳烃之间的π-π作用力;乙酸乙酯主链可在沥青质聚集体周围形成溶剂化层减少沥青质分子的聚集,使得稠油的黏度降低。对MAS5合成条件进行优化,温度为50℃下,当MAS5的用量为600mg/L和1000mg/L时对稠油的降黏率分别为50.6%和53.7%,黏度从5180m Pa·s分别降低至391m Pa·s和335m Pa·s,对稠油的降黏效果明显。MAS5同时具有合成原料价格较低的特点,具有较好的工业应用前景。
To solve the problem of high viscosity and poor fluidity of Xinjiang heavy oil, the polyester series MAS oil-soluble viscosity reducer with phenyl group and amide bond was synthesized and characterized by Fourier Transform Infrared Spectrometer （FTIR） . The effectiveness of the viscosity reducer on Xinjiang heavy oil was evaluated. The results showed that MAS5 with main chain of ethyl acetate and MAS4 with long main chain alkyl acrylate （C18） performed better in viscosity reduction on heavy oil. The amide bond in MAS5 can interact with the resin and asphaltene inheavy oil, and the benzene ring can affect π-π force between the polycyclic aromatic molecules, and the ethyl acetate can form the solvation layer around the asphaltene aggregate to reduce further aggregation of the asphaltene molecules, all of these resulting in the viscosity decrease ofheavy oil. The synthesis conditions for MAS5 were optimized. When the dosages of MAS5 viscosity reducer in Xinjiang heavy oil are 600mg/L and 1000mg/L, the corresponding rates of viscosity reduction were 50.6% and 53.7%, respectively at 50℃. Furthermore, the price of raw materials for MAS5 is lower so it has a better prospect for industrial applications.
出处
《化工进展》
EI
CAS
CSCD
北大核心
2017年第6期2282-2288,共7页
Chemical Industry and Engineering Progress
关键词
稠油
油溶性降黏剂
乙酸乙烯酯
降黏率
heavy oil
oil-soluble viscosity reducer
vinyl acetate
viscosity reduction rate
