B - Operations – Transporting – 01 – D
Patent
B - Operations, Transporting
01
D
B01D 63/08 (2006.01) B01D 61/36 (2006.01) B01D 65/00 (2006.01) B01D 65/08 (2006.01)
Patent
CA 2134238
2134238 9324210 PCTABS00028 A membrane fluid separation apparatus comprising A) a vessel; B) a plurality of membrane cassettes in the vessel which comprise: i) a plurality of membrane units capable of performing a fluid separation at a relatively low transmembrane pressure arranged substantially parallel to one another with the ends of the membrane units bound in a cured binder such that the interior of the membrane units are open at one or both of the bound ends, ii) a casing comprising a frame arranged about one or more of the plurality of membrane units such that there are two fluid flow systems which do not communicate, the first fluid flow system is in contact with the outside of the membrane units and is adapted for contacting feed fluid with the membrane units and the second fluid flow system is in contact with the interior of the membrane units and comprises a permeate collection chamber at one or both ends of the plurality of membrane units and a flow passage which is adapted for removing permeate from the vicinity of the membrane units; C) a means for introducing feed fluid to the vessel; D) a means for contacting the feed fluid with the feed side of the membrane units; E) a means for removing the permeate from the permeate flow passages of the plurality of membrane cassettes and the vessel; F) one or more means for creating a transmembrane pressure differential wherein at least part of the pressure differential is achieved by use of a means which creates a vacuum on the permeate side of the membrane units; and G) a means of removing feed fluid which does not permeate across the membrane from the vessel.
Dow Danmark A/s
Smart & Biggar
LandOfFree
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