III George E. (Berkeley) Dunning Stephen A. (Lafayette) Clark Daniel O. (Benica CA)
출원인 / 주소
The Dow Chemical Company (Midland MI 02)
인용정보
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37인용 특허 :
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초록▼
The present invention is a fluid separation module having improved permeate flow characteristics and improved space/volume requirements. Such modules comprise a hollow fiber bundle, a first and optional second tubesheet, an optional casing, a feed inlet, a permeate outlet, and a non-permeate outlet.
The present invention is a fluid separation module having improved permeate flow characteristics and improved space/volume requirements. Such modules comprise a hollow fiber bundle, a first and optional second tubesheet, an optional casing, a feed inlet, a permeate outlet, and a non-permeate outlet. The module is coiled, curved or bent into a useful non-linear shape which reduces the space requirements for the module essentially without diminishing the effectiveness of the fluid separation. The feed fluid is introduced to the module either in a boreside or a shellside manner. Coil, french horn, spiral or U-shaped configuration or combinations thereof are useful.
대표청구항▼
A non-linear shaped fluid separation module having boreside feed, comprising: A. a plurality of hollow fiber membranes, wherein the hollow fiber membranes are arranged in a bundle form having a first end and a second end and are adapted for the separation of one or more fluids from one or more other
A non-linear shaped fluid separation module having boreside feed, comprising: A. a plurality of hollow fiber membranes, wherein the hollow fiber membranes are arranged in a bundle form having a first end and a second end and are adapted for the separation of one or more fluids from one or more other fluids; B. a first tubesheet comprising a thermoset or thermoplastic polymeric material at the first end of the bundle, arranged such that the hollow fiber membranes are embedded in the first tubesheet and communicate through the first tubesheet and are open on the opposite face of the first tubesheet, and the disposition of the second end of the fiber bundle is selected from the group consisting of: (a) the hollow fiber bundle having the hollow fiber bores sealed at the second end; (b) the hollow fiber bundle having the second end embedded in the first tubesheet and communicating through the first tubesheet, wherein the hollow fiber bores at the second end are also open on the opposite face of the first tubesheet; and (c) the hollow fiber bundle having the second end embedded in an optional second separate tubesheet such that the optional second tubesheet wherein when present the optional second tubesheet comprises a thermoset or thermoplastic polymeric material at the second end of the bundle, arranged such that the hollow fiber membranes are embedded in the second tubesheet, and the bores communicate through the second tubesheet and are open on the opposite face of the second tubesheet such that the membranes in the tubesheet have means for enabling said fluid separation module to be reshaped or reformed to a shape or size to meet the space or volume requirements of a particular fluid separation application; C. bundle protection means for protecting the bundle from mechanical damage; D. optional tubesheet and bundle casing means which comprises an envelope which encloses the bundle wherein the casing means is bonded to, embedded in, or attached to the first tubesheet, and the casing means is optionally bonded to, embedded in, or attached to the optional second tubesheet; E. a feed inlet means adapted for introducing a feed mixture of fluids to be separated into the bores of the hollow fiber membranes by contacting the feed mixture with the hollow fiber membranes at the opposite face of the first tubesheet; F. optionally a non-permeate outlet means adapted for removing the fluids, which do not permeate through the hollow fiber membranes, from the bore of the hollow fiber membranes at the opposite face of the optional second tubesheet; G. exit means for removing the fluids which permeate through the hollow fiber membranes from the vicinity of the hollow fiber membranes, wherein said exit means are optionally located near to the first tubesheet to obtain countercurrent flow of the permeate; H. a feed inlet region adjacent to the opposite face of the first tubesheet arranged to form a cavity into which the feed inlet means introduces the feed mixture, wherein the region is sealed such that fluid can only enter or leave the region through the feed inlet means or the hollow fiber membranes, and the feed inlet region is arranged to introduce the feed fluid mixture into the bores of the hollow fiber membranes; I. an optional non-permeate outlet region adjacent to the opposite face of the optional second tubesheet arranged to form a cavity into which the hollow fiber membranes convey those fluids which do not permeate the membrane, and from which the non-permeate outlet removes the non-permeating fluids from the module, wherein the non-permeate outlet region is sealed such that fluid can only enter or leave the region through the bores of the hollow fiber membranes or the non-permeate outlet means; J. optionally a means for forming a connection between the first tubesheet means and the casing means, such that fluid cannot communicate between the feed inlet region and the region beyond the first tubesheet which is outside of the exterior surface of the hollow fibers; K. optionally a means for forming a connection between the optional second tubesheet means or the casing means, such that fluid cannot communicate between the non-permeate outlet region and the region beyond the first tubesheet to the optional tubesheet; and further includes either L. a first end capping means arranged for sealing the first tubesheet means, thereby forming the feed inlet region and, a first attachment means arranged for attaching the first end capping means to the tubesheet means or the casing means; or M. a second end capping means arranged for sealing the optional second tubesheet means, thereby forming the non-permeate outlet region with second attachment means arranged for attaching the second end capping means to the optional second tubesheet or casing means.
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