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:
Jan. 27, 2015
Filed:
Mar. 10, 2011
Phillip Goebel, New Hope, MN (US);
David Olson, Minneapolis, MN (US);
David M. Polizzotti, Yardley, PA (US);
Abdul Rafi Khwaja, Upper Gwynedd Township, PA (US);
Phillip Goebel, New Hope, MN (US);
David Olson, Minneapolis, MN (US);
David M. Polizzotti, Yardley, PA (US);
Abdul Rafi Khwaja, Upper Gwynedd Township, PA (US);
General Electric Company, Schenectady, NY (US);
Abstract
A spiral wound module is suitable for use with high temperature water that is also very alkaline or has a high pH, for example SAGD produced water. The module uses a polyamide-based membrane with a polysulfone or polyethersulfone backing material. For other components, the module uses primarily one or more of, EPDM; polyamide; polyphenylene oxide; polyphenylene sulfide; polysulfone; polyethersulfone; polysulfonamide; polyvinylidene fluoride; mylar; fiberglass; and, epoxy. Polyester is not used. Polypropylene is not used for the feed spacer. For example, a module may use a PVDF feed spacer, a nylon permeate spacer and a polysulfone center tube. The center tube may be provided with 4 rows of 0.063″ diameter holes and be rolled under high tension.