Effect of acidic components on the dynamic interfacial tensions in surfactant/alkali/acidic crude oil systems

被引：6

作者：

Lu, Z ^{[1
]}

Lan, L ^{[1
]}

Sui, Z ^{[1
]}

Yu, JY ^{[1
]}

机构：

[1] Chinese Acad Sci, Inst Photog Chem, Beijing 100101, Peoples R China

来源：

JOURNAL OF DISPERSION SCIENCE AND TECHNOLOGY | 2001年 / 22卷 / 01期

关键词：

D O I：

10.1081/DIS-100102679

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

The acidic components have been extracted from the crude oil by solvents. The dynamic interfacial tensions (IFTs) in surfactant/alkali/acidic crude oil or the residual oil systems were investigated by spinning drop method. The transient, the minimum and the stable IFT values were obtained. It is shown that the acidic components play an important role in lowering IFTs between the alkaline solutions and the crude oil or affecting IFTs between the surfactant solutions and the crude oil when the ionic strength is low. The minima of dynamic IFTs are affected by both the adsorption-desorption barriers and the concentrations and the ratios of the interfacial active substances on the interfaces.

引用

页码：41 / 55

页数：15

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