水包油乳状液稳定性影响因素分析研究综述

Review of Analytical Research of Influencing Factors of the Stability of Oil-in-water Emulsions

管道运输是油品运输的重要方式之一,所以稠油乳状液在运输过程中的稳定性对运输效率起到决定性作用。不同类型的表面活性剂、界面张力、油水比、乳化温度、分散相粒径、化学添加剂、界面电荷等对稠油乳状液稳定性有着不同的影响,而影响水包油乳状液稳定性的主要因素是稠油乳状液分散性粒径的大小、界面张力和油水界面膜的性质。分析了平均粒径、界面张力和油水界面膜性质对水包油型稠油乳状液的稳定性影响,探究了使其稳定的机理和影响平均粒径、界面张力、油水界面膜性质的因素,并对水包油乳状液稳定性研究的发展前景进行展望。

Pipeline transportation is one of the important ways of oil transportation,so the stability of heavy oil emulsion during transportation plays a decisive role in transportation efficiency.Different types of surfactants,interfacial tension,oil-water ratio,emulsification temperature,dispersed phase particle size,chemical additives,interfacial charge,etc.have different effects on the stability of heavy oil emulsion,and the main factors affecting the stability of oil-in-water emulsion are the size of the dispersible particle size,interfacial tension and the nature of oil-water interface film of heavy oil emulsion.In this paper,the effect of average particle size,interfacial tension and oil-water interface film properties on the stability of oil-in-water heavy oil emulsion was analyzed,the mechanism of stabilization was investigated as well as the factors affecting average particle size,interfacial tension and oil-water interface film properties,and the development prospect of oil-in-water emulsion stability research was analyzed.