INVESTIGATIONS INTO THE ELECTRICAL AND COALESCENCE BEHAVIOUR OF WATER-IN-CRUDE OIL EMULSIONS IN HIGH VOLTAGE ELECTRIC FIELDS.

Taylor, SE (1986) INVESTIGATIONS INTO THE ELECTRICAL AND COALESCENCE BEHAVIOUR OF WATER-IN-CRUDE OIL EMULSIONS IN HIGH VOLTAGE ELECTRIC FIELDS. American Institute of Chemical Engineers, National Meeting.

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Abstract

The stability of water-in-crude oil emulsions when subjected to high voltage electric fields depends on the nature of the crude oil and the presence of chemical additives. Optical microscopy, conductivity and coalescence measurements have revealed two distinct types of behaviour, designated type I and type II. These are shown to be related to the crude oil/water interfacial rheological properties. For incompressible crude oil/water films, droplet-droplet coalescence is hindered and chains of water droplets are established. These increase the electrical conductivity of the emulsion (type I behaviour). On the other hand, efficient droplet-droplet coalescence occurs in electric fields if the interfacial film is compressible (type II).

Item Type:	Article
Divisions :	Surrey research (other units)
Authors :	Name Email ORCID Taylor, SE s.taylor@surrey.ac.uk
Date :	1 January 1986
Depositing User :	Symplectic Elements
Date Deposited :	17 May 2017 12:56
Last Modified :	24 Jan 2020 23:08
URI:	http://epubs.surrey.ac.uk/id/eprint/837345

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