Patent · US Active

Recovery and separation of crude oil and water from emulsions

US8911615B2 · kind B2 · utility

3Cited by

9References

8Claims

0Family size

Assignees

William Marsh Rice University · US
Nalco Company LLC · US

Inventors

Olina G. Raney · Houston, US
John Hera, Jr. · Sugar Land, US
Duy T. Nguyen · Richmond, US
Michael K. Poindexter · Sugar Land, US
George J. Hirasaki · Bellaire, US
Clarence A. Miller · Houston, US

Key dates

Filing date	Apr 8, 2010
Grant date	Dec 16, 2014
Priority date	—
Expiry date	Jan 21, 2033

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC10G2300/44
WIPO fieldChemical engineering
WIPO sectorChemistry

Abstract

A composition and method demulsify a produced emulsion from anionic surfactants and polymer (SP) and alkali, surfactants, and polymer (ASP). The produced emulsion is demulsified into oil and water. In one embodiment, the composition includes a surfactant. The surfactant comprises a cationic surfactant, an amphoteric surfactant, or any combinations thereof.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.