文献类型：期刊文献

中文题名：高凝原油降凝剂的合成及性能研究

英文题名：STUDY ON SYNTHESIS AND PROPERTIES OF POUR-POINT DEPRESSANT FOR HIGH POUR-POINT CRUDE OIL

作者：吴本芳[1];吴一昊[2];徐承中[1];李颖[1];段林林[1];张宗兵[1];张昶明[1]

机构：[1]华东理工大学化工学院,上海200237;[2]上海理工大学材料科学与工程学院,上海200093

年份：2014

卷号：31

期号：4

起止页码：9

中文期刊名：精细石油化工

外文期刊名：Speciality Petrochemicals

收录：CSTPCD;;Scopus;北大核心:【北大核心2011】；CSCD:【CSCD_E2013_2014】；

语种：中文

中文关键词：高凝油;降凝;降凝剂;共聚物;合成与表征

外文关键词：high pour-point crude oil; pour-point depression; pour-point depressant; copolymer;synthesis and characterization

摘要：针对我国中部某油田凝点高达56℃的高凝原油(Y14)对市售降凝剂感受性差的现状,合成了新型高效降凝剂——三元共聚物(LMZ)中探索了降凝机理。优化合成工艺条件为:m(溶剂)∶m(引发剂)∶m(链转移剂)∶m(总单体)=5∶0.05∶0.1∶1,反应温度110℃。在LMZ-6加剂量w(LMZ-6)=0.4%及热处理温度75℃的条件下,可使高凝油Y14凝点降低6℃,优于市售降凝剂EVA。研究发现聚合物的降凝性能不仅与其组成结构有关,还与其相对分子质量有关。
A new type pour-point depressant was synthesized to solve problems of Y 14, a kind of high pour-point oil with pour-point of 56℃ in an oilfield in Central China, which had bad impressibility to the commercial pour-point depressants. The optimum synthesis conditions of terpolymer pour-point depressant LMZ were as follows： the mass ratio of solvent, initiator and chain transfer agent to total monomers was 5 ： 0.05 ： 0.1 ： 1,the reaction temperature was 110 ℃. With the addition of 0.4% dosage and under the disposing temperature of 75 ℃, the synthesized optimized pour-point depressant LMZ-6 made the pour-point of Y14 reduced by 6 ℃,which was better than that of the commercial pour-point depressant EVA. It was found that the pour-point depressing performance of copolymer depend on not only its composition structure but also its relative molecule weights. The mechanism of pour-point depression was investigated as well.