Gas separation – Means within gas stream for conducting concentrate to collector
Patent
1991-07-29
1992-10-27
Spitzer, Robert
Gas separation
Means within gas stream for conducting concentrate to collector
55 68, 55158, 21032181, 2103219, B01D 5322, B01D 6302
Patent
active
051585812
ABSTRACT:
A membrane module for separation of a fluid mixture comprises a containment vessel enclosing a bundle of hollow fiber membranes having all fibers potted in a common end-plug located at a first end where all fiber bores are open. A fluid-impervious barrier is disposed transversely to the bundle axis near the second end, distal from the end-plug, and forms a fluid-tight seal with the interior surface of the vessel so that the interior volume is divided into two zones not in direct fluid communication. The barrier thereby segregates the external surface of each fiber into a first region lying in the zone between the end-plug and the barrier and a second region lying in the zone between the barrier and the second end. The unobstructed bore of each fiber is open only in the end-plug so that permeate may be collected only from that end of the bundle for removal from the module. The fiber portions in the second zone may be either in the form of re-entrant loops or sealed stubs so that, having no open ends, fluid communication between their external surfaces and their bores is only via passage across the hollow fiber membrane wall.
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