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WO1992010279A1 - Dispositif pour la separation de melanges de matieres liquides ou gazeuses - Google Patents

Dispositif pour la separation de melanges de matieres liquides ou gazeuses Download PDF

Info

Publication number
WO1992010279A1
WO1992010279A1 PCT/DE1991/000965 DE9100965W WO9210279A1 WO 1992010279 A1 WO1992010279 A1 WO 1992010279A1 DE 9100965 W DE9100965 W DE 9100965W WO 9210279 A1 WO9210279 A1 WO 9210279A1
Authority
WO
WIPO (PCT)
Prior art keywords
container
membrane
caps
retentate
sleeves
Prior art date
Application number
PCT/DE1991/000965
Other languages
German (de)
English (en)
Inventor
Joachim Curth
Johannes Neumann
Wilfried Pawlowski
Roland Pelzer
Original Assignee
Preussag Anlagenbau Gmbh
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.)
Filing date
Publication date
Application filed by Preussag Anlagenbau Gmbh filed Critical Preussag Anlagenbau Gmbh
Publication of WO1992010279A1 publication Critical patent/WO1992010279A1/fr

Links

Classifications

    • 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
    • B01D63/04—Hollow fibre modules comprising multiple hollow fibre assemblies
    • B01D63/043—Hollow fibre modules comprising multiple hollow fibre assemblies with separate tube sheets
    • 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
    • B01D63/04—Hollow fibre modules comprising multiple hollow fibre assemblies
    • B01D63/046—Hollow fibre modules comprising multiple hollow fibre assemblies in separate housings
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2313/00—Details relating to membrane modules or apparatus
    • B01D2313/21—Specific headers, end caps
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2313/00—Details relating to membrane modules or apparatus
    • B01D2313/44—Cartridge types
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2317/00—Membrane module arrangements within a plant or an apparatus
    • B01D2317/04—Elements in parallel
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A20/00—Water conservation; Efficient water supply; Efficient water use
    • Y02A20/124—Water desalination
    • Y02A20/131—Reverse-osmosis

Definitions

  • the invention relates to a system for separating liquid or gaseous substance mixtures, in which a semipermeable membrane separates a retentate space through which a substance mixture flows and a permeate space from which the permeate separated from the substance mixture is removed, the semipermeable membrane being composed of individual elements Hollow fiber modules is composed.
  • Plants of the specified type are used for separation processes based on the principle of reverse osmosis, for example for the desalination of water.
  • the water is introduced under pressure into the retentate space, where it can penetrate the semipermeable membrane, while the substances dissolved in the water are retained by the membrane.
  • the hollow fiber modules a large number of hollow fibers are held together to form a fiber bundle in such a way that the open fiber ends can be flowed through and the medium penetrating the fiber wall can be drained off.
  • the invention has for its object to provide a system with hollow fiber modules of the type mentioned, which allows a large membrane area to be accommodated with little construction in a small space, and is characterized by low flow losses and a high exchange rate.
  • the permeate space is formed by an elongate, tubular container into which a plurality of membrane cartridges each containing a hollow fiber bundle are inserted at a distance from one another and transversely to its longitudinal axis, the wall of the container for the connection of Supply and retentate pipes are provided in which the ends of the membrane cartridges are held and sealed.
  • the invention enables the simple arrangement of a plurality of hollow fiber bundles held by membrane cartridges in a simple, easy to manufacture manner in a compact structural unit formed by the container.
  • the hollow fiber bundles can have a comparatively short length, so that the pressure losses in the hollow fibers remain small and a correspondingly high exchange rate can be achieved.
  • the arrangement of membrane cartridges in a tubular container further enables a small cartridge spacing and accordingly the accommodation of a large membrane area in a small installation space.
  • the container serves as a permeate collector, which, thanks to its large cross-section, enables the permeate to flow out almost without loss and eliminates the need for complex piping for permeate discharge.
  • Another advantage is that the membrane cartridges are easily accessible from the outside through the pipe socket and can therefore be easily replaced. As a result, the maintenance and repair ture can be kept low.
  • the feed and retentate lines can be brought to the pipe socket from different directions, so that there is a good adaptation to the given spatial conditions with regard to the design
  • the container is penetrated transversely to its longitudinal axis by cylindrical sleeves which are connected pressure-tight to the container wall, the walls of the sleeves having openings within the container and the ends of the sleeves from the Stick out the container and form the pipe socket.
  • caps are provided which are detachably connected to the pipe socket by a thread. Such caps are easy to remove, making maintenance easier.
  • the caps have a central connecting piece for the supply or retentate line.
  • the supply lines and / or the retentate lines are connected to the pipe socket radially between the caps and the membrane cartridge. You can choose between the Caps flange rings with passages may be provided. In this embodiment, the membrane cartridges can be replaced without loosening the supply and retentate lines.
  • the metal cartridges can be inserted loosely into the pipe sockets or the sleeves and can be sealed off from the pipe sockets by sealing rings which encompass the ends of the membrane cartridges.
  • the ends of the membrane cartridges are screwed together with flange rings which can be inserted from the outside into the end openings of the pipe socket and are held by screw caps. which can be screwed onto the pipe socket.
  • the flange rings can be sealed off from the membrane cartridges on the one hand and the pipe sockets and / or screw caps on the other hand by means of elastic sealing rings in order to make it easier to replace the membrane cartridges.
  • the pipe flanges are arranged approximately in the middle between the axial ends of the containers, so that there are short Disturbance routes and correspondingly low interference losses result.
  • FIG. 1 shows a view of several containers of a plant according to the invention for separating a hydrocarbon-air mixture
  • FIG. 2 shows a cross section through a container according to FIG. 1 in the plane of a membrane cartridge
  • FIG. 3 shows a cross section through a sleeve end with a radial connection of the feed or retentate line
  • Figure 4 shows a cross section through a sleeve end according to Figure 3 with a different storage of the membrane cartridge.
  • FIG. 1 shows three tubular containers 1 of a system comprising a plurality of such containers for separating a mixture of air and hydrocarbon vapors, as is the case when filling tank systems with hydrocarbons.
  • the container 1 consist of cylindrical tubes which are closed at both ends. In the middle between their closed ends, the containers 1 are connected to one another by pipe flanges 2 and connected to a permeate line 3.
  • Each container 1 is penetrated perpendicular to its longitudinal axis by sleeves arranged parallel to one another, the opposite ends of which protrude beyond the outer wall of the container 1 and are closed with screwed-on caps 4.
  • the caps 4 are provided with a connecting piece 5.
  • the connecting pieces 5 of the caps 4 are connected to a supply line 6 for supplying the air-hydrocarbon mixture.
  • a retentate line 7 is connected to the connecting piece 5 of the caps 4 on the rear side of the container 1, which is not visible. With the aid of valves 8, the supply lines 6 and the retentate lines 7 of the individual containers 1 can be blocked.
  • the internal structure of the container 1 can be seen from the sectional illustration in FIG.
  • the sleeves 9 are inserted into a bore penetrating the container 1 and connected to the container 1 in a pressure-tight manner by means of weld seams 10.
  • the wall of the sleeves 9 is provided with slots 11 through which the interior of the sleeves 9 communicates with the interior of the container 1.
  • the ends 12 of the sleeves 9 protruding from the container 1 each form a pipe socket and have an external thread onto which the caps 4 are screwed.
  • each sleeve 9 there is a membrane cartridge 13.
  • the membrane cartridge 13 consists of a housing 14 formed by a cylinder sleeve, which has a conically enlarged collar 15 at both ends.
  • the central, cylindrical section of the housing 14 is provided with a plurality of longitudinal slots 16.
  • In the interior of the housing 14 there is a bundle of hollow fibers, the length of which corresponds to the housing 14 and the open ends of which are facing the two end faces of the housing 4.
  • the hollow fibers consist of a porous polysulfone structure.
  • the inside diameter is approx. 400 jt_m and its wall thickness is approx. 120 ⁇ m.
  • Each membrane cartridge contains approx. 2500 - 4000 such hollow fibers, which corresponds to a membrane area of 0.6 - 1 qm.
  • the fiber ends are sealed against each other and against the housing 14 with the aid of a plastic which is thrown into the spaces.
  • the membrane cartridges 13 are held in the sleeves 9 with the aid of flange rings 17 which are provided with an internal thread and onto which the bundles 15 of the membrane cartridges 13 which are provided with a corresponding external thread are screwed at their ends.
  • a sealing ring 18 is arranged in each case between the flange rings 17 and the end faces of the housing 14.
  • the flange rings 17 engage with a centering collar 19 in the bore of the sleeve 9 and are supported by a sealing ring 20 on the respective end face of the sleeve 9.
  • the flange rings 17 are held by the caps 4 and pressed against the sleeve 9, a sealing washer 21 being inserted between the flange rings 17 and the bottom surface of the caps 4 in order to seal the supply or retentate side to the outside.
  • the supply line 6 and the retentate line 7 are connected to the connecting pieces 5 of the caps 4 using conventional pipe fittings.
  • the hydrocarbon-air mixture is supplied via line 6 at a pressure of approximately 10 bar.
  • the pressure in line 7 on the retentate side is somewhat below 10 bar and is determined by the pressure drop in the membrane cartridge 13.
  • a pressure of approx. 800 mbar is present in the permeate space of the container 1. Since the hydrocarbons preferably penetrate the semipermeable wall of the hollow fibers, the pressure drop between the microchannel of the individual hollow fibers and connected to the feed line 6 and the retentate line 7 occurs the surrounding permeate space to split the hydrocarbon-air Mixtures into a hydrocarbon enriched permeate and a depleted retentate.
  • the hydrocarbons can be recovered from the enriched permeate, while the emaciated retentate is subsequently cleaned by means of catalytic oxidation.
  • the end of the sleeve 9 is provided with a stepped bore 22 which has an internal thread at its outer end.
  • a flange ring 23 screwed to the membrane cartridge 13 is arranged in the stepped bore 22 and sealed with a sealing ring 24 arranged in its peripheral flat. Inwardly, the flange ring 23 is supported on the step surface delimiting the step bore 22.
  • the flange ring 23 On its side facing away from the membrane cartridge 13, the flange ring 23 has projections 26 which are separated from one another by cutouts 25 and which bear against the inner surface of a cap 27 screwed into the sleeve 9.
  • a radial connection bore 28 of a connection piece 29 arranged on the jacket surface of the sleeve 9 opens, to which the feed line 6 or the retentate line 7 can be connected.
  • a sealing ring 30 is located between the cap 27 and the end face of the sleeve 9.
  • the membrane cartridge 13 is accessible without loosening the feed or retentate line. It is only necessary to unscrew the cap 27 in order to be able to remove the membrane cartridge 13 together with the flange ring 23 from the sleeve 9.
  • the diameter of the housing 14 of the membrane cartridge 13 is enlarged and on to achieve a large membrane area its ends are provided with a cylindrical collar 15, the outer diameter of which is matched to the inner diameter of the sleeve 9.
  • a sealing ring 32 is arranged on the step 31 formed by the stepped bore 22 and provided with a chamfer, which spans the collar 15.
  • the sealing ring 32 is held on the step 31 by a flange ring 33.
  • the adjacent end face of the flange ring 33 is likewise provided with a chamfer on its inner edge, which forms a triangular groove in connection with the chamfer of the step 31.
  • the flange ring lies with the outer edge of the end face
  • the flange ring 33 on the radially outer edge of step 31. With its opposite end face, the flange ring 33 bears against the cap 27, which is firmly clamped against the flange ring 33 when screwed in. Between the flange ring 33 and a sealing surface 34 on the radially outer edge of the cap 27, a sealing ring 35 is arranged, which is pressed against the stepped bore 22 when the cap 27 is screwed in and thereby for a seal between the cap 27 and the end 12 of the sleeve 9 cares.
  • the flange ring 33 has radial bores 36 which open into an annular groove 37 adjacent to the connecting bore 28 in its outer surface.
  • the length of the membrane cartridge 13 is dimensioned such that there is little play in the longitudinal direction between its end face and the flange ring 33. This ensures that the membrane cartridge 13 cannot be tightened by tightening the cap 27.
  • the ends of the membrane cartridge 13 are not supported on the sleeve 9 in the direction of the container 1. The pressure forces acting on the end faces of the membrane cartridge 13 te are therefore taken up by the housing 14.
  • the size of the game can vary considerably. Accordingly, the manufacturing accuracy with regard to the length of the membrane cartridge 13 is subject to only minor requirements.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Analytical Chemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Separation Using Semi-Permeable Membranes (AREA)

Abstract

Dispositif dans lequel un espace de rétentat traversé par un mélange de matières et un espace de perméation sont séparés par une membrane semi-perméable composée de divers modules de fibres creuses. Afin de pouvoir loger une grande surface de membrane dans un faible espace et de limiter les pertes à l'écoulement, l'espace de perméation est réalisé sous la forme d'un récipient tubulaire (1) s'étendant longitudinalement, traversé perpendiculairement à son axe longitudinal par des manchons cylindriques (9) reliés de façon étanche à la paroi du récipient, et présentant des ouvertures à l'intérieur du récipient, et dont les extrémités, fermées par des chapeaux (4), sont raccordées d'une part à un conduit d'alimentation (6) et, d'autre part, à un conduit de rétentat (7). Des cartouches à membrane (13) contenant chacune un faisceau de fibres creuses sont disposées dans les manchons (9), les extrémités ouvertes des fibres creuses étant en communication avec le conduit d'alimentation ou avec le conduit de rétentat.
PCT/DE1991/000965 1990-12-14 1991-12-12 Dispositif pour la separation de melanges de matieres liquides ou gazeuses WO1992010279A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DEP4039967.2 1990-12-14
DE4039967A DE4039967A1 (de) 1990-12-14 1990-12-14 Anlage zur trennung von fluessigen oder gasfoermigen stoffgemischen

Publications (1)

Publication Number Publication Date
WO1992010279A1 true WO1992010279A1 (fr) 1992-06-25

Family

ID=6420334

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/DE1991/000965 WO1992010279A1 (fr) 1990-12-14 1991-12-12 Dispositif pour la separation de melanges de matieres liquides ou gazeuses

Country Status (3)

Country Link
AU (1) AU9048591A (fr)
DE (2) DE4039967A1 (fr)
WO (1) WO1992010279A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL9401903A (nl) * 1994-11-15 1996-06-03 Stork Friesland Bv Variabele modulaire membraanfiltratie-eenheid en verbindingselement voor een dergelijke eenheid.
WO1998013130A1 (fr) * 1996-09-26 1998-04-02 Bucher-Guyer Ag Systeme de filtration par membrane selon un procede d'ecoulement tangentiel

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5468283A (en) * 1994-07-21 1995-11-21 Transfair Corporation Hollow fiber membrane modules with transverse gas flow tailored for improved gas separation
RU2135271C1 (ru) * 1998-06-02 1999-08-27 Ткатчук Елена Никаноровна Мембранный элемент
US6126724A (en) * 1999-02-19 2000-10-03 Hansen Inc. Locomotive air processing apparatus
ATE457194T1 (de) 2004-04-22 2010-02-15 Bekaert Progressive Composites Filtrationsapparat mit druckgefäss zum halten von zylindrischen filterpatronen

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0321637A2 (fr) * 1987-12-22 1989-06-28 E.I. Du Pont De Nemours And Company Dispositif de perméation d'air modulaire sans enveloppe
DE3839985A1 (de) * 1988-11-26 1990-02-22 Daimler Benz Ag Permeationseinrichtung zur an- oder abreicherung von gasbestandteilen in bzw. von gasgemischen

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DE2150241A1 (de) * 1970-10-22 1973-04-12 Deutsches Brennstoffinstitut F Verfahren und vorrichtung zum abtrennen einzelner und/oder mehrerer komponenten aus gasgemischen
FR2540396B1 (fr) * 1983-02-04 1988-09-23 Petroles Cie Francaise Procede de deshydratation de gaz
US4824444A (en) * 1986-04-11 1989-04-25 Applied Membrane Technology, Inc. Gas permselective composite membrane prepared by plasma polymerization coating techniques
DE3716653A1 (de) * 1987-05-19 1988-12-08 Draegerwerk Ag Stoffaustauschsystem, insbesondere zur befeuchtung von gasen
HU207491B (en) * 1987-10-13 1993-04-28 Tatabanyai Banyak Vallalat Device for separating the components of fluid solutions and gas mixtures and method for forming the device
DE3737931C2 (de) * 1987-11-07 1996-03-07 Mbt Membrantechnik Gmbh Verfahren zur Herstellung einer druckstabilen Rohrmembran
DE3805414C1 (fr) * 1988-02-22 1989-09-07 Secon Gesellschaft Fuer Separations- Und Concentrationstechnik Mbh, 3402 Dransfeld, De
DE3839567A1 (de) * 1988-11-24 1990-06-07 Akzo Gmbh Hohlfadenmodul zum abtrennen von gas

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0321637A2 (fr) * 1987-12-22 1989-06-28 E.I. Du Pont De Nemours And Company Dispositif de perméation d'air modulaire sans enveloppe
DE3839985A1 (de) * 1988-11-26 1990-02-22 Daimler Benz Ag Permeationseinrichtung zur an- oder abreicherung von gasbestandteilen in bzw. von gasgemischen

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL9401903A (nl) * 1994-11-15 1996-06-03 Stork Friesland Bv Variabele modulaire membraanfiltratie-eenheid en verbindingselement voor een dergelijke eenheid.
WO1998013130A1 (fr) * 1996-09-26 1998-04-02 Bucher-Guyer Ag Systeme de filtration par membrane selon un procede d'ecoulement tangentiel
US6083390A (en) * 1996-09-26 2000-07-04 Bucher-Guyer Ag System for membrane filtration in a cross stream process

Also Published As

Publication number Publication date
DE4039967A1 (de) 1992-06-17
DE4193195D2 (de) 1993-11-18
AU9048591A (en) 1992-07-08

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