The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 07, 2011
Filed:
Aug. 03, 2009
Applicants:
Paul F. Bryan, Pinole, CA (US);
Shabbir Husain, San Pablo, CA (US);
Prakhar Prakash, San Ramon, CA (US);
Inventors:
Paul F. Bryan, Pinole, CA (US);
Shabbir Husain, San Pablo, CA (US);
Prakhar Prakash, San Ramon, CA (US);
Assignee:
Chevron U.S.A. Inc., San Ramon, CA (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
B01D 11/00 (2006.01); B01D 61/00 (2006.01);
U.S. Cl.
CPC ...
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.