Partitioning of complex surfactant mixtures between oil/water/microemulsion phases at high surfactant concentrations

Journal Article · Wed Jun 01 00:00:00 EDT 1983 · J. Colloid Interface Sci.; (United States)

DOI:https://doi.org/10.1016/0021-9797(83)90431-9· OSTI ID:5766711

Graciaa, A; Lachaise, J; Sayous, J G; Grenier, P; Yiv, S

A model describing the partitioning of surfactant molecules between excess and microemulsion phases which are in equilibrium is proposed. The important parameters characterizing the individual molecules comprising the mixture are the critical micelle concentrations in water and the partition coefficients between oil and water phases. The model considers the existence of a separate surfactant phase which is the palisade layer of a micelle and leads to predictions for both fractionation and phase concentrations of surfactant. Predictions based on this model have been compared to experimentally determined quantities and the agreement is good for all cases tested. The model leads to a relatively simple mathematical formulation which can be used to study the effect of varying the overall system surfactant concentration and of changing the system water-to-oil ratio. 21 references.

• OSTI ID: 5766711
• Journal Information: J. Colloid Interface Sci.; (United States), Vol. 93:2
• Country of Publication: United States
• Language: English

Related Subjects

02 PETROLEUM
MICROEMULSIONS
PARTITION
PHASE STUDIES
SURFACTANTS
ENHANCED RECOVERY
EQUILIBRIUM
FRACTIONATION
MATHEMATICAL MODELS
MICELLAR SYSTEMS
PETROLEUM
QUANTITY RATIO
TESTING
WATER
WATERFLOODING
COLLOIDS
DISPERSIONS
EMULSIONS
ENERGY SOURCES
FLUID INJECTION
FOSSIL FUELS
FUELS
HYDROGEN COMPOUNDS
OXYGEN COMPOUNDS
RECOVERY
SEPARATION PROCESSES
020300* - Petroleum- Drilling & Production