PROCEDE ET DISPOSITIF DE MESURE GRAVIMETRIQUE DES CARACTERISTIQUES DE LA SEPARATION D'UN HYDROCARBURE LIQUIDE EN PLUSIEURS PHASES

• Main Authors: VASSILAKIS DESPINA, CLAUDY PIERRE, FAURE YAN, MALLET CATHERINE, LETOFFE JEAN MARIE
• Format: Patent
• Language: French
• Published: 28.08.1998
• Edition: 6
• Subjects: INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES; MEASURING; PHYSICS; TESTING

The invention concerns a method and device for determining the temperature stability of a water-hydrocarbon emulsion capable of phase separation by monitoring the weight variations of a gravimetric sensor part of which is immersed in said mixture. The method consists in a first step of cooling or heating the emulsion to a predetermined temperature; and a second step during which the emulsion is maintained at this temperature, the time-dependent variation curve of said weight in time enabling the determination of the solid mass collected and the separation speed into two phases by determining the slope of this curve, the stability of the emulsion being obtained by comparison with reference emulsions known to be stable. La présente invention concerne un procédé de mesure gravimétrique des caractéristiques de la séparation d'un hydrocarbure liquide en plusieurs phases. Ce procédé comprend la mesure des variations de poids d'une nacelle, plongée dans le liquide, lors des changements de température du liquide entraînant une séparation de phases. Il pourra être utilisé dans l'industrie pétrolière pour comparer l'efficacité de certains additifs tels que les émulsifiants ou les additifs antisédimentation.