A STUDY OF DYNAMIC INTERFACIAL MECHANISMS FOR DEMULSIFICATION OF WATER-IN-OIL EMULSIONS

被引：109

作者：

KIM, YH

WASAN, DT

BREEN, PJ

机构：

[1] IIT,DEPT CHEM ENGN,CHICAGO,IL 60616

[2] BAKER PERFORMANCE CHEM INC,HOUSTON,TX 77027

来源：

COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS | 1995年 / 95卷 / 2-3期

基金：

美国国家科学基金会;

关键词：

DEMULSIFICATION; DYNAMIC INTERFACIAL MECHANISMS; RHEOLOGY; WATER-IN-OIL EMULSIONS;

D O I：

10.1016/0927-7757(94)03032-U

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：

A novel technique is described for measuring theological properties of a water/oil/water film. Data are presented for several commercial-type demulsifiers which demonstrate a strong connection between good performance (fast coalescence) and dynamic film theological properties, using samples of an actual crude oil emulsion and brine. Measurements of dynamic interfacial tension and activities with a conventional drop-volume apparatus support the water/oil/water film results. Measurements of static interfacial tension fail to correlate with performance data. The data provide useful insight into physicochemical mechanisms needed to obtain rapid coalescence, and could help guide the development of better performing demulsifiers.

引用

页码：235 / 247

页数：13

共 10 条

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[2]

Edwards DA, 1991, INTERFACIAL TRANSPOR

[3]

Hunsel JV, 1986, J COLLOID INTERF SCI, V114, P432

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