Title of article :
Influence of demulsifier on interfacial film between oil and water
Author/Authors :
Kang، نويسنده , , Wanli and Jing، نويسنده , , Guolin and Zhang، نويسنده , , Hongyan and Li، نويسنده , , Mingyuan and Wu، نويسنده , , Zhaoliang، نويسنده ,
Issue Information :
روزنامه با شماره پیاپی سال 2006
Pages :
5
From page :
27
To page :
31
Abstract :
Demulsification of a synthetic water in oil (W/O) crude oil emulsion was studied by measuring water–oil interfacial properties such as life time and thinning rate of oil film in the presence of various demulsifiers. The results indicated that the interfacial elasticity decreased both the strength and the life time of oil film and film thickness when adding the demulsifiers. The oil film broke when film thickness came to a critical level. As for a demulsifier, the interfacial elasticity was decreased with demulsifier concentration increase, and stayed constant above a critical demulsifier concentration. The rate of dewatering is related to interfacial elasticity. When different demulsifiers were compared, the more the interfacial elasticity was lowered, the more efficient was the dewatering. The mechanism of the different types of demulsifiers was discussed based on the experimental results. The demulsifiers partially replaced the emulsifiers, which led to the interfacial elasticity decreased. The effect of chemical structure of the demulsifiers on water–oil interfacial film was studied.
Keywords :
Dewatering rate , Interfacial viscosity , interfacial elasticity , Demulsifier , Oil film life , Interfacial tension , Thinning rate of oil film
Journal title :
Colloids and Surfaces A Physicochemical and Engineering Aspects
Serial Year :
2006
Journal title :
Colloids and Surfaces A Physicochemical and Engineering Aspects
Record number :
1791268
Link To Document :
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