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EP0946271A1 - Membrane composite comportant un revetement de copolymeres sequences polyether-polyester, destinee a la separation de gaz polaires contenus dans des melanges gazeux - Google Patents

Membrane composite comportant un revetement de copolymeres sequences polyether-polyester, destinee a la separation de gaz polaires contenus dans des melanges gazeux

Info

Publication number
EP0946271A1
EP0946271A1 EP97935495A EP97935495A EP0946271A1 EP 0946271 A1 EP0946271 A1 EP 0946271A1 EP 97935495 A EP97935495 A EP 97935495A EP 97935495 A EP97935495 A EP 97935495A EP 0946271 A1 EP0946271 A1 EP 0946271A1
Authority
EP
European Patent Office
Prior art keywords
composite membrane
membrane according
blocks
water vapor
separation
Prior art date
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.)
Withdrawn
Application number
EP97935495A
Other languages
German (de)
English (en)
Inventor
Klaus-Viktor Peinemann
Yanwei Cen
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.)
GKSS Forshungszentrum Geesthacht GmbH
Original Assignee
GKSS Forshungszentrum Geesthacht 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 GKSS Forshungszentrum Geesthacht GmbH filed Critical GKSS Forshungszentrum Geesthacht GmbH
Publication of EP0946271A1 publication Critical patent/EP0946271A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D71/00—Semi-permeable membranes for separation processes or apparatus characterised by the material; Manufacturing processes specially adapted therefor
    • B01D71/06—Organic material
    • B01D71/76—Macromolecular material not specifically provided for in a single one of groups B01D71/08 - B01D71/74
    • B01D71/80—Block polymers
    • 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
    • B01D53/228—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 characterised by specific membranes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D71/00—Semi-permeable membranes for separation processes or apparatus characterised by the material; Manufacturing processes specially adapted therefor
    • B01D71/06—Organic material
    • B01D71/48—Polyesters
    • B01D71/481—Polyarylates
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D71/00—Semi-permeable membranes for separation processes or apparatus characterised by the material; Manufacturing processes specially adapted therefor
    • B01D71/06—Organic material
    • B01D71/52—Polyethers
    • B01D71/521—Aliphatic polyethers
    • B01D71/5211—Polyethylene glycol or polyethyleneoxide

Definitions

  • the invention relates to a composite membrane consisting of a microporous carrier membrane and a separating layer applied thereon, and to the use thereof for separating polar gases from gas mixtures.
  • adsorbents for example molecular sieves or silica gel
  • the adsorbent is loaded with water in the first step and regenerated in a second step using heat, pressure changes or a dry gas flow.
  • This known method is particularly suitable for drying low-load streams. In addition, particularly low residual moisture levels can be achieved.
  • a block copolymer ester which consists of 70 wt. -7.
  • Polyethylene terephthalate and 30% by weight polyethylene glycol commercially available as Sympatex (R) (Akzo)
  • 49.5 g of 1, 1, 2-trichloroethane were added and the mixture was heated under reflux at the boiling point for 12 h.
  • a microporous polyacrylic nitri 1 membrane manufactured by GKSS
  • GKSS microporous polyacrylic nitri 1 membrane

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

Membrane composite constituée d'une membrane support microporeuse et d'une couche de séparation appliquée sur ladite membrane support. Cette membrane composite se caractérise en ce que la couche de séparation est réalisée à partir d'un copolyéther-ester séquencé et présente une épaisseur ≤ 3 νm. Cette membrane composite permet de séparer sélectivement des gaz polaires (vapeur d'eau, hydrogène sulfuré) contenus dans des mélanges gazeux, et peut être utilisée par exemple pour sécher du gaz naturel avant son introduction dans un réseau central de distribution.
EP97935495A 1996-08-07 1997-07-30 Membrane composite comportant un revetement de copolymeres sequences polyether-polyester, destinee a la separation de gaz polaires contenus dans des melanges gazeux Withdrawn EP0946271A1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19631841 1996-08-07
DE19631841A DE19631841C2 (de) 1996-08-07 1996-08-07 Kompositmembran mit einer Beschichtung aus Polyether-Polyester-Block-Copolymeren zur Abtrennung von polaren Gasen aus Gasgemischen
PCT/DE1997/001618 WO1998005414A1 (fr) 1996-08-07 1997-07-30 Membrane composite comportant un revetement de copolymeres sequences polyether-polyester, destinee a la separation de gaz polaires contenus dans des melanges gazeux

Publications (1)

Publication Number Publication Date
EP0946271A1 true EP0946271A1 (fr) 1999-10-06

Family

ID=7802002

Family Applications (1)

Application Number Title Priority Date Filing Date
EP97935495A Withdrawn EP0946271A1 (fr) 1996-08-07 1997-07-30 Membrane composite comportant un revetement de copolymeres sequences polyether-polyester, destinee a la separation de gaz polaires contenus dans des melanges gazeux

Country Status (3)

Country Link
EP (1) EP0946271A1 (fr)
DE (1) DE19631841C2 (fr)
WO (1) WO1998005414A1 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10101295A1 (de) * 2001-01-12 2002-07-18 Linde Ag Verfahren zum Verlüssigen eines Kohlenwasserstoffreichen Stromes
US6860920B2 (en) 2002-03-28 2005-03-01 L'air Liquide-Societe Anoyme A Directoire Et Conseil De Surveillance Pour L'etude Et L'exploitation Des Procedes George Claude Block polyester-ether gas separation membranes
RU2488089C1 (ru) * 2012-03-14 2013-07-20 Общество С Ограниченной Ответственностью Научно-Техническая Фирма "Бакс" Пробоотборник для отбора сероводорода из расплава серы

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3653180A (en) * 1970-11-02 1972-04-04 Gen Electric Block copolymer membrane for separating polar contaminants from gaseous mixtures
JPS4973384A (fr) * 1972-11-14 1974-07-16
JPS594417A (ja) * 1982-07-01 1984-01-11 Teijin Ltd 乾燥用品
CA1191439A (fr) * 1982-12-02 1985-08-06 Cornelius M.F. Vrouenraets Produit flexible multicouche
JPH04227827A (ja) * 1987-07-20 1992-08-17 Mitsubishi Rayon Co Ltd 多孔質中空繊維状膜の製造方法及び多孔質中空繊維状膜
CA1321153C (fr) * 1987-11-12 1993-08-10 Shunichi Shimatani Methode de separation de mithane d'un melange gazeux a l'aide d'une membrane permeable
US4857078A (en) * 1987-12-31 1989-08-15 Membrane Technology & Research, Inc. Process for separating higher hydrocarbons from natural or produced gas streams
DE4306276A1 (de) * 1992-10-07 1994-04-14 Wolff Walsrode Ag Wasserdampfdurchlässige, atmungsaktive Folien sowie deren Verwendung
US5407466A (en) * 1993-10-25 1995-04-18 Membrane Technology And Research, Inc. Sour gas treatment process including membrane and non-membrane treatment steps
US5628179A (en) * 1993-11-04 1997-05-13 General Electric Co. Steam attemperation circuit for a combined cycle steam cooled gas turbine
WO1995024260A1 (fr) * 1994-03-11 1995-09-14 Akzo Nobel Nv Dispositif permettant de separer des melanges de substances ou de purifier des substances par pervaporation
DE4432482C2 (de) * 1994-09-13 2002-12-19 Membrana Gmbh Vorrichtung zur Trocknung gasförmiger Medien

Non-Patent Citations (3)

* Cited by examiner, † Cited by third party
Title
"Römpp Chemie Lexicon", 1992, THIEME, STUTTGART *
MULDER M.: "Basic principles of Membrane Technology", 1990, KLUWER, DORDRECHT, NL *
See also references of WO9805414A1 *

Also Published As

Publication number Publication date
WO1998005414A1 (fr) 1998-02-12
DE19631841C2 (de) 1998-11-05
DE19631841A1 (de) 1998-02-12

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Legal Events

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