D - Textiles – Paper – 01 – D
Patent
D - Textiles, Paper
01
D
183/1
D01D 5/24 (2006.01) B01D 53/22 (2006.01) B01D 63/02 (2006.01) D02G 3/02 (2006.01) D02G 3/22 (2006.01)
Patent
CA 1114307
CRIMPED HOLLOW FIBERS FOR FLUID SEPARATIONS AND BUNDLES CONTAINING THE HOLLOW FIBERS ABSTRACT OF THE DISCLOSURE Hollow, semi-permeable fibers which are intended for use in fluid separations axe provided with relatively low amplitude waves, or crimps. The relatively low amplitude crimps enable the hollow fibers to be assembled in a bundle comprising substantially parallelly-oriented hollow fibers wherein the bundle has a relatively high packing factor, i.e., the percentage of the cross-sectional area of the bundle occupied by hollow fibers, such that unduly large volumes of separation apparatus are not required for a given amount of hollow fiber surface area. The relatively low amplitude crimps enable good fluid dispersion through a bundle comprising substantially parallelly-oriented hollow fibers such that shell-side (i.e., the exterior sides of the hollow fibers) feed of the fluid mixture to be treated can be attractive, even when the flow of the feed is predominantly axial to the hollow fibers. Shell-side feed of the fluid mixture to be treated is often particularly advantageous since the fluid mixture can frequently be recovered from the fluid separation with a relatively low pressure drop.
317048
Mcfadden Fincham
Monsanto Company
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