静电强化乳液中油滴（纳米尺度）聚并过程

Chinese Journal of Chemical Engineering ›› 2012, Vol. 20 ›› Issue (4): 654-658.

静电强化乳液中油滴（纳米尺度）聚并过程

HOSSEINI M.; SHAHAVI M.H.

Faculty of Chemical Engineering, Babol Noshirvani University of Technology, Babol, Iran

收稿日期:2010-08-26 修回日期:2011-09-24 出版日期:2012-08-28 发布日期:2011-09-24

Electrostatic enhancement of coalescence of oil droplets (in nanometer scale) in water emulsion

HOSSEINI M.; SHAHAVI M.H.

Faculty of Chemical Engineering, Babol Noshirvani University of Technology, Babol, Iran

Received:2010-08-26 Revised:2011-09-24 Online:2012-08-28 Published:2011-09-24

摘要/Abstract

摘要： Oil droplets in nanometer scale which are dispersed in water cannot be separated easily. An attractive technique is carried out by electrical phenomena to demulsify oil in water emulsion. In this research, non-uniform electric field or dielectrophoresis (DEP) is applied to remove sunflower oil (which is dispersed in the water). Effects of temperature, time and voltage (using AC-electric field) were considered to get the highest DEP-force (Fdi) and the best results. The oil particles sizes with average of approximately 76 nm have been shown using a ZetaSizer Nano ZS, Model ZEN 1600 (Malvern Instrument Ltd.). The maximum separation efficiency of 85% is obtained at the optimum temperature of 38 °C and voltage of 3000 V.

关键词: demulsification, oil/water, emulsion, electric field, dielectrophoresis

Abstract: Oil droplets in nanometer scale which are dispersed in water cannot be separated easily. An attractive technique is carried out by electrical phenomena to demulsify oil in water emulsion. In this research, non-uniform electric field or dielectrophoresis (DEP) is applied to remove sunflower oil (which is dispersed in the water). Effects of temperature, time and voltage (using AC-electric field) were considered to get the highest DEP-force (Fdi) and the best results. The oil particles sizes with average of approximately 76 nm have been shown using a ZetaSizer Nano ZS, Model ZEN 1600 (Malvern Instrument Ltd.). The maximum separation efficiency of 85% is obtained at the optimum temperature of 38 °C and voltage of 3000 V.

Key words: demulsification, oil/water, emulsion, electric field, dielectrophoresis

HOSSEINI M., SHAHAVI M.H.. 静电强化乳液中油滴（纳米尺度）聚并过程[J]. Chinese Journal of Chemical Engineering, 2012, 20(4): 654-658.

HOSSEINI M., SHAHAVI M.H.. Electrostatic enhancement of coalescence of oil droplets (in nanometer scale) in water emulsion[J]. Chin.J.Chem.Eng., 2012, 20(4): 654-658.

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