Patent ID: 6489368
Filing Date: 2002-12-03
Classification: C10G

Abstract:
A crude oil demulsifier composition comprising:about 10 wt. % to about 80 wt. % based on the weight of the chemical demulsifier formulation of an additive having the formula: Râ€”Arâ€”SO3H â€ƒwhere R is an alkyl group containing at least 16 carbons and at least one branch of an alkyl group, Ar is an aromatic group containing at least two 6 carbon-ring aromatic groups and about 90 wt. % to about 20 wt. % based on the weight of the chemical demulsifier formulation of a co-additive selected from the group consisting of dipropylene monobutyl ether, isoparaffinic solvent, cycloparaffinic solvent, diethylene glycol monobutyl ether, benzyl alcohol, and mixtures thereof.