【摘要】：針對新疆稠油黏度大、流動性差的特點,合成了具有苯基和酰胺基的聚酯型MAS系列降黏劑,采用紅外光譜儀(FTIR)對合成產物進行了分析表征,并對MAS系列降黏劑用于新疆稠油的降黏效果進行研究評定。結果表明,具有乙酸乙酯主鏈的MAS5和具有高碳丙烯酸酯(C_(18))主鏈的MAS4的降黏效果較好。MAS5中的酰胺基團可與稠油中的膠質瀝青質發(fā)生相互作用;苯基會影響稠環(huán)芳烴之間的π-π作用力;乙酸乙酯主鏈可在瀝青質聚集體周圍形成溶劑化層減少瀝青質分子的聚集,使得稠油的黏度降低。對MAS5合成條件進行優(yōu)化,溫度為50℃下,當MAS5的用量為600mg/L和1000mg/L時對稠油的降黏率分別為50.6%和53.7%,黏度從5180m Pa·s分別降低至391m Pa·s和335m Pa·s,對稠油的降黏效果明顯。MAS5同時具有合成原料價格較低的特點,具有較好的工業(yè)應用前景。
[Abstract]:According to the characteristics of high viscosity and poor mobility of Xinjiang heavy oil, polyester MAS series viscosity reducer with phenyl and amino group was synthesized and characterized by infrared spectrometer (FTIR). The viscosity reduction effect of MAS series viscosity reducer in Xinjiang heavy oil was studied and evaluated. The results show that the viscosity reduction effect of MAS5 with ethyl acetate main chain and MAS4 with high carbon acrylic ester (C18) main chain is better. The amide group in MAS5 can interact with colloidal asphaltene in heavy oil. Benzene group affects the 蟺-蟺 force between polycyclic aromatic hydrocarbons, and the main chain of ethyl acetate can form a solvation layer around the asphaltene aggregates to reduce the accumulation of asphaltene molecules and reduce the viscosity of heavy oil. The synthesis conditions of MAS5 were optimized at 50 鈩，

本文編號：2493427