STABILITY OF WATER-IN-CRUDE OIL EMULSIONS: ROLE PLAYED BY THE STATE OF SOLVATION OF ASPHALTENES AND BY WAXES

1 January 1998

journal article
research article
Published by Taylor & Francis in Journal of Dispersion Science and Technology

Vol. 19 (2-3) , 339-367
https://doi.org/10.1080/01932699808913179

Abstract

The stability of water-in-crude oil (or model crude oil) emulsions was determined by means of separation/sedimentation tests and high voltage destabilization tests. First the impact of the state of solvation of asphaltencs on their ability to stabilize emulsions were studied. Secondly, we analyzed the role of naturally occurring waxes in the stabilization of emulsions. Finally, the emulsion stability when both asphaltenes and waxes are involved was investigated.

Keywords

This publication has 15 references indexed in Scilit:

Asphalt flocculation and deposition: I. The onset of precipitation
AIChE Journal, 1996
THERMODYNAMICS OF ASPHALTENE PRECIPITATION AND DISSOLUTION INVESTIGATION OF TEMPERATURE AND SOLVENT EFFECTS
Fuel Science and Technology International, 1996
Crude oil emulsions in high electric fields as studied by dielectric spectroscopy. Influence of interaction between commercial and indigenous surfactants
Colloids and Surfaces A: Physicochemical and Engineering Aspects, 1996
Peptization studies of asphaltene and solubility parameter spectra
Fuel, 1994
W/O EMULSIONS IN HIGH ELECTRIC FIELDS AS STUDIED BY MEANS OF DIELECTRIC SPECTROSCOPY
Journal of Dispersion Science and Technology, 1994
Interfacial properties of asphaltenes
Fuel, 1992
Dielectric relaxation time of bound water in biological materials
The Journal of Physical Chemistry, 1991
INFLUENCE OF TEMPERATURE AND SOLVENT ON THE PRECIPITATION OF ASPHALTENES
Fuel Science and Technology International, 1990
Emulsification and demulsification related to crude oil production
Colloids and Surfaces, 1985
Etude de l'état des asphaltènes dans les mélanges d'hydrocarbures : taille des amas moléculaires
Revue de l'Institut Français du Pétrole, 1983