高校化学工程学报2016，Vol.30Issue(2)：349-357,9.DOI:10.3969/j.issn.1003-9015.2016.02.014
油溶性双亲分子对草桥稠油缔合结构与流动性的影响
Effects of Oil-Soluble Amphiphiles on Associating State and Flowability of Caoqiao Heavy Oil
摘要
Abstract
The effects of four types amphiphiles, alkaline, acidic, Bolar and Gemini, on associating structure and flowability of Caoqiao heavy oil were investigated through DSC analysis, viscosity-temperature test, conductivity measurement and particle size analysis. Experimental results show that the alkaline alkyl amines act as asphaltenes flocculants, which decrease the conductivity of heavy oils and flocculate asphaltene aggregates into larger units, these cause the obvious viscosity decrease of heavy oil. Dodecyl benzene sulfonic acid and 1,2-benzenedicarboxylic acid (dioctadecanamide of Gemini type) perform as asphaltenes dispersants, bringing up the conductivity of heavy oils and dispersing asphaltene aggregates into smaller units, resulting in the significant viscosity increase of heavy oil. In addition,ethylenediamine and sebacic acid of Bolar-type amphiphilies can not only flocculate asphaltenes particles into larger ones, but also self associate into large amounts of polar micelles in heavy oil thus greatly enhancing the efficient polar fractions, which causes the conductivity and viscosity increase of heavy oil. The asphaltenes dispersion ability of dodecylaniline of alkaline type, lauric acid and dodecylphenol of acidic type is limited in the heavy oil, and do not significantly change the conductivity and viscosity of heavy oil.关键词
油溶性双亲分子/稠油/黏度/沥青质/缔合结构Key words
oil-soluble amphiphiles/heavy oil/viscosity/asphaltenes/associating structure分类
化学化工引用本文复制引用
李传宪,马洋洋,杨飞,杨爽,姚博,张钦..油溶性双亲分子对草桥稠油缔合结构与流动性的影响[J].高校化学工程学报,2016,30(2):349-357,9.基金项目
国家自然科学基金(51204202)；中央高校基本科研业务费专项资金(14CX06141A，14CX02210A，15CX06072A，15CX06066A)。 （51204202）
