GB1175688A

GB1175688A – Diffusion Systems for Separating Fluid Mixtures
– Google Patents

GB1175688A – Diffusion Systems for Separating Fluid Mixtures
– Google Patents
Diffusion Systems for Separating Fluid Mixtures

Info

Publication number
GB1175688A

GB1175688A
GB23139/69A
GB2313969A
GB1175688A
GB 1175688 A
GB1175688 A
GB 1175688A
GB 23139/69 A
GB23139/69 A
GB 23139/69A
GB 2313969 A
GB2313969 A
GB 2313969A
GB 1175688 A
GB1175688 A
GB 1175688A
Authority
GB
United Kingdom
Prior art keywords
line
unit
lines
permeate
effluent
Prior art date
1965-12-22
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)

Expired

Application number
GB23139/69A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)

EIDP Inc

Original Assignee
EI Du Pont de Nemours and Co
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
1965-12-22
Filing date
1966-12-13
Publication date
1969-12-23

1965-12-22
Priority claimed from US515621A
external-priority
patent/US3339341A/en

1966-12-13
Application filed by EI Du Pont de Nemours and Co
filed
Critical
EI Du Pont de Nemours and Co

1966-12-13
Priority claimed from GB55708/66A
external-priority
patent/GB1175687A/en

1969-12-23
Publication of GB1175688A
publication
Critical
patent/GB1175688A/en

Status
Expired
legal-status
Critical
Current

Links

Espacenet

Global Dossier

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Classifications

B—PERFORMING OPERATIONS; TRANSPORTING

B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL

B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING

B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts

B29C70/04—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising reinforcements only, e.g. self-reinforcing plastics

B29C70/28—Shaping operations therefor

B29C70/54—Component parts, details or accessories; Auxiliary operations, e.g. feeding or storage of prepregs or SMC after impregnation or during ageing

B29C70/542—Placing or positioning the reinforcement in a covering or packaging element before or during moulding, e.g. drawing in a sleeve

B—PERFORMING OPERATIONS; TRANSPORTING

B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL

B01D—SEPARATION

B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols

B01D53/22—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by diffusion

B—PERFORMING OPERATIONS; TRANSPORTING

B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL

B01D—SEPARATION

B01D63/00—Apparatus in general for separation processes using semi-permeable membranes

B01D63/02—Hollow fibre modules

B—PERFORMING OPERATIONS; TRANSPORTING

B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL

B01D—SEPARATION

B01D63/00—Apparatus in general for separation processes using semi-permeable membranes

B01D63/02—Hollow fibre modules

B01D63/021—Manufacturing thereof

B—PERFORMING OPERATIONS; TRANSPORTING

B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL

B01D—SEPARATION

B01D63/00—Apparatus in general for separation processes using semi-permeable membranes

B01D63/02—Hollow fibre modules

B01D63/021—Manufacturing thereof

B01D63/0233—Manufacturing thereof forming the bundle

B—PERFORMING OPERATIONS; TRANSPORTING

B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL

B01D—SEPARATION

B01D63/00—Apparatus in general for separation processes using semi-permeable membranes

B01D63/02—Hollow fibre modules

B01D63/031—Two or more types of hollow fibres within one bundle or within one potting or tube-sheet

B—PERFORMING OPERATIONS; TRANSPORTING

B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL

B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING

B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts

B29C70/68—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts by incorporating or moulding on preformed parts, e.g. inserts or layers, e.g. foam blocks

B29C70/84—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts by incorporating or moulding on preformed parts, e.g. inserts or layers, e.g. foam blocks by moulding material on preformed parts to be joined

B29C70/845—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts by incorporating or moulding on preformed parts, e.g. inserts or layers, e.g. foam blocks by moulding material on preformed parts to be joined by moulding material on a relative small portion of the preformed parts

B—PERFORMING OPERATIONS; TRANSPORTING

B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL

B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES

B29L2031/00—Other particular articles

B29L2031/14—Filters

Abstract

1,175,688. Diffusion separation system. E. I. DU PONT DE NEMOURS & CO. 13 Dec., 1966 [22 Dec., 1965], No. 23139/69. Divided out of 1,175,687. Heading D1L. A plurality of diffusion units of the type disclosed in the original Specification 55708/66 (see also Figs. 1, 2, 2A, not shown) are employed in high efficiency systems to separate gaseous mixtures, e.g. He of 99.99+ % purity from natural gas containing <1% He, or from N 2 containing 0.47% He. In Fig. 3, feed passes by lines 201 203 to first diffusion unit 100 and through hollow filamentary mem branes (111) (see Figs. 1, 2, 2A, not shown), depleted effluent leaving by lines 204, 205. Part of the feed stream is diverted by line 210 to act as a sweep medium for the permeate fraction; permeate and sweep medium is then passed by lines 211 and 213 (having been compressed by compressor 212) to second diffusion unit 100. Effluent therefrom is recycled by lines 214-216 to feed line 203, permeate product which passes through the hollow filamentary membranes leaving by line 219. The process is controlled automatically, analyzer units 207, and 217 and 220 in conjunction, respectively controlling the amounts of sweep medium and recycle flow through valves 208, 218. In Figs. 4 and 6 (not shown), 3- and 4-unit systems are respectively described. In Fig. 5, feed passes by lines 430, 431, 432 to the hollow filamentary membranes of two first-stage diffusion units 100, depleted effluent leaving by line 433. Part of the effluent is however returned by line 434 as sweep medium, the swept permeate leaving by line 435 and part thereof being passed by line 436 to sweep the first unit. The combined swept permeate stream is passed through a "deoxo" unit and then dried before being passed by lines 441, 443, 444 to points at both ends of second-stage unit 100 external to the hollow filaments, unpermeated effluent being recycled by line 442. The permeate into the filaments is collected from both ends thereof by lines 448, 449 and passed by lines 450, 451 to both ends of a similar third-stage unit 100, unpermeated effluent therefrom being recycled by line 445 to the input of the second-stage unit, and permeate product leaving the system through line 456. In order to avoid variations in unit performance from unavoidable constructional factors, it is preferred that each unit, whatever the mode of operation, be substituted by three units operating in parallel. By judicious control of the various flow, sweep and effluent rates (see Fig. 6A, not shown), the effluent and permeate compositions from each may thereby be kept constant, and the disturbing effect of these factors on the overall throughput of the three units in parallel greatly minimized. GB23139/69A 1965-12-22 1966-12-13 Diffusion Systems for Separating Fluid Mixtures Expired GB1175688A (en) Applications Claiming Priority (3) Application Number Priority Date Filing Date Title US51553565A 1965-12-22 1965-12-22 US515621A US3339341A (en) 1965-12-22 1965-12-22 Fluid separation process and apparatus GB55708/66A GB1175687A (en) 1965-12-22 1966-12-13 Diffusion Apparatus for Separating Fluid Mixtures Publications (1) Publication Number Publication Date GB1175688A true GB1175688A (en) 1969-12-23 Family ID=27260400 Family Applications (1) Application Number Title Priority Date Filing Date GB23139/69A Expired GB1175688A (en) 1965-12-22 1966-12-13 Diffusion Systems for Separating Fluid Mixtures Country Status (1) Country Link GB (1) GB1175688A (en) Cited By (3) * Cited by examiner, † Cited by third party Publication number Priority date Publication date Assignee Title FR2852255A1 (en) * 2003-03-11 2004-09-17 Air Liquide Treatment of gas mixture by selective permeation uses flow of scavenging gas adjusted according to a parameter of at least one of the feed/output gases WO2013020887A1 (en) * 2011-08-10 2013-02-14 Ksm Water Gmbh Filter device and a production method WO2014121964A1 (en) * 2013-02-05 2014-08-14 Axiom Angewandte Prozesstechnik Ges.M.B.H. Gas separation having a membrane separation unit 1966 1966-12-13 GB GB23139/69A patent/GB1175688A/en not_active Expired Cited By (5) * Cited by examiner, † Cited by third party Publication number Priority date Publication date Assignee Title FR2852255A1 (en) * 2003-03-11 2004-09-17 Air Liquide Treatment of gas mixture by selective permeation uses flow of scavenging gas adjusted according to a parameter of at least one of the feed/output gases WO2013020887A1 (en) * 2011-08-10 2013-02-14 Ksm Water Gmbh Filter device and a production method AU2012292985B2 (en) * 2011-08-10 2017-03-09 Nanostone Water Gmbh Filter device and a production method US9833745B2 (en) 2011-08-10 2017-12-05 Nanostone Water Gmbh Filter device and a production method WO2014121964A1 (en) * 2013-02-05 2014-08-14 Axiom Angewandte Prozesstechnik Ges.M.B.H. Gas separation having a membrane separation unit Similar Documents Publication Publication Date Title JP3167794B2 (en) 2001-05-21 Multi-stage cascade sweep process for diaphragm gas separation US5185014A (en) 1993-02-09 Membrane oxygen process and system US4857082A (en) 1989-08-15 Membrane unit turn-down control system US2951554A (en) 1960-09-06 Process for separation of vapor phase mixtures, especially of isotopes GB975819A (en) US5282969A (en) 1994-02-01 High pressure feed membrane separation process US5314528A (en) 1994-05-24 Permeation process and apparatus Stern et al. 1984 Recycle and multimembrane permeators for gas separations US6197090B1 (en) 2001-03-06 Method and apparatus for recovering a gas from a gas mixture US5482539A (en) 1996-01-09 Multiple stage semi-permeable membrane process and apparatus for gas separation US20040000513A1 (en) 2004-01-01 Apparatus using solid perm-selective membranes in multiple groups for simultaneous recovery of specified products from a fluid mixture US10561978B2 (en) 2020-02-18 Membrane-based gas separation with retentate sweep US5302189A (en) 1994-04-12 Membrane nitrogen gas generator with improved flexibility EP0110858A1 (en) 1984-06-13 Membrane gas separation process US5252219A (en) 1993-10-12 Compressed permeate sweep membrane separation process GB1175688A (en) 1969-12-23 Diffusion Systems for Separating Fluid Mixtures EP0438214A2 (en) 1991-07-24 Reversible membrane plant US5006132A (en) 1991-04-09 Membrane processed purified pipeline gas KR102557207B1 (en) 2023-07-18 Membrane process and system for high recovery of a nonpermeating gas Vorotyntsev et al. 2001 Ultrapurification of gases in a continuous membrane column cascade US4474586A (en) 1984-10-02 Gas separation process US4166727A (en) 1979-09-04 Process for separating substances of different masses Rautenbach et al. 1987 Oxygen and methane enrichment—a comprison of module arrangements in gas permeation SU1119718A1 (en) 1984-10-23 Method of separating gas mixtures US2902111A (en) 1959-09-01 Diffusion process and apparatus Legal Events Date Code Title Description 1970-05-06 PS Patent sealed [section 19, patents act 1949]
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