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U.S. Department of Energy
Office of Scientific and Technical Information

Aromaticity influencing the thermostability of micellar dispersions

Patent ·
OSTI ID:7215939
The thermostability of a micellar dispersion is shifted to higher temperature ranges by increasing the aromaticity of the hydrocarbon within the dispersion. The micellar solution is composed of kerosene and light catalytic cycle oil (hydrocarbons), water, sodium or ammonium alkyl aryl naphthenic sulfonates (petroleum sulfonate surfactant), isopropanol (cosurfactant), and sodium sulfate (electrolyte). The aromatic content of the light catalytic cycle oil is higher than the aromatic content of the kerosene. By increasing the concentration of cycle oil to kerosene, stable micellar solutions at temperatures from ambient to 200/sup 0/F can be obtained. The aqueous medium can be soft, brackish, or a brine.
Assignee:
Marathon Oil Co.
Patent Number(s):
US 3495660
OSTI ID:
7215939
Country of Publication:
United States
Language:
English