Patent Number: 7,955,506

Title: Process for dewatering an aqueous organic solution

Abstract: An energy-efficient process for dewatering an aqueous organic solution includes using freely available solar energy to concentrate a draw solution within a reservoir. The draw solution is used in conjunction with a membrane to remove water from the organic solution in a forward osmosis process. The draw solution is diluted by the osmosis process, and returned to the reservoir to be re-concentrated and reused in the osmosis process.

Inventors: Bryan; Paul F. (Pinole, CA), Husain; Shabbir (San Pablo, CA), Prakash; Prakhar (San Ramon, CA)

Assignee: Chevron U.S.A. Inc.

International Classification: B01D 11/00 (20060101); B01D 61/00 (20060101)

Expiration Date: 2019-06-07 0:00:00