原油降凝剂的合成及性能研究  

The synthesis and properties of crude pour point depressant

作　　者：陈杰[1] 郭向明[2] 

机构地区：[1]吉林化工学院化工与材料工程学院,吉林吉林132022 [2]吉林化工学院科研处,吉林吉林132022

出　　处：《应用化工》2010年第10期1549-1551,共3页Applied Chemical Industry

摘　　要：针对我国原油含蜡量较高的特点,采用在原油中加入化学降凝剂的方法,对原油降凝。以高活性聚异丁烯为主要原料,先与苯进行烷基化反应得到聚异丁烯烷基苯,再以浓硫酸为磺化剂进行磺化反应,制得的烷基苯磺酸经中和反应制得烷基苯磺酸盐原油降凝剂。红外光谱分析表明,产物为预期产物。用偏光显微镜研究了加剂前后晶体形态,并探讨了降凝机理。通过对产物与大庆原油进行的降凝效果的测定,证实合成的产物在大庆原油中加入量为0.6%时降凝效果最好,降凝幅度为8℃。Based on the characteristics of high wax content of crude oil,chemical additives was added into the crude oil.Taking the polyisobutylene as a raw material,the alkylate reacted with the benzene to prepare the alkyl benzenes,then the sulfonation reaction carried on with the strong sulfuric acid as the sulfonating agent,the alkyl benzenes sulfonate surface active agent was obtained from alkyl benzene sulfonic acid via the neutral response system.The infrared spectrum analysis indicated that the product was the anticipated product.The crystal habit was researched by the polarization microscope and the mechanism of the depressant was studied.The synthetic alkyl benzenes sulfonate could reduce the crude oil condensation point according to the determination results of Daqing crude oil.The optimal depressant amount 0.6%,the crude oil condensation point could reduce by 8 ℃.

关 键 词：降凝剂 烷基苯磺酸盐 聚异丁烯 凝点 

分 类 号：O631[理学—高分子化学] TE832.3[理学—化学]