Method of and composition for breaking oil and water emulsions in crude oil processing operations
AssigneeBetzDearborn Inc.
InventorsPaul R. Hart, Jen-Chi Chen, Fu Chen, Thai H. Duong
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Abstract
Methods and compositions for breaking oil and water emulsions are disclosed. Oil and water emulsions are broken by treating the emulsion with a copolymer of tannin and a cationic monomer. The preferred composition is an aqueous solution of a copolymer of tannin and a cationic monomer, a water soluble organic multivalent salt and a glycol. The preferred salt is aluminum chlorohydrate and the preferred glycol is hexylene glycol.
Claims12
An oil and water emulsion breaking composition comprising an aqueous solution of 1 to 50% by weight a copolymer of tannin and a cationic monomer, 1 to 50% by weight a multivalent inorganic salt and 1 to 30% by weight a glycol.
Dependencies are inferred from the claim text.