Abstract: The present invention is directed to a contactor for degrassing a liquid. The contractor includes a perforated core and a microporous membrane fabric wrapped around the core. The fabric includes a polymethyl pentene hollow fiber as a weft fiber and a warp yarn. A tube sheet secures the ends of the wound fiber and a shell encases the tube sheet and fabric. The shell has at least one opening to permit fluid flow through the shell and an end cap. In a further embodiment the invention is directed to a contactor for degrassing a liquid wherein the contactor is adapted to withstand pressures greater than 0.4 MPa and temperatures greater than 50° C.
Type:
Grant
Filed:
June 21, 2001
Date of Patent:
September 9, 2003
Assignee:
Celgard Inc.
Inventors:
Kwantai Cho, Clifton J. Delozier, Linus I. Holstein, R. Allen Pittman, Charles J. Runkle, Amitava Sengupta