The effect of air sparging on the electrical resolution of water-in-oil emulsions
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Date
2001
Authors
Journal Title
Journal ISSN
Volume Title
Publisher
Elsevier Science Ltd.
Abstract
A novel process is described in which the resolution of a stable water-in-oil emulsion is augmented by the simultaneous use of
pulsed DC electric 1elds and mild bubbling of the emulsion with air. The work has indicated that there is a synergistic effect of
air sparging on demulsi1cation in the electric 1eld and that the maximum emulsion resolution requires the voltage to be pulsed
with optimum frequency. Emulsion resolution was found to increase steadily with increasing air 5ow rate until a maximum value
is reached after which the extent of phase separation starts to fall rapidly with further increase in the air 5ow rate. The electrical
resolution was best (79% resolution) when the ratio of air to emulsion 5ow rate (volumetric) in the coalescer was about 120 : 1.
Description
Research Article
Keywords
Air sparging, Emulsion breaking, Coalescence, Electric field, Surfactant
Citation
Bailes, P.J. & Kuipa, P.K., 2001. The effect of air sparging on the electrical resolution of water-in-oil emulsions. Chemical Engineering Science, 56, pp.6279–6284.