FR2689785B1 - Dispositif rotatif de separation par adsorption d'au moins un constituant d'un melange gazeux. - Google Patents

Dispositif rotatif de separation par adsorption d'au moins un constituant d'un melange gazeux.

Info

Publication number
FR2689785B1
FR2689785B1 FR9204487A FR9204487A FR2689785B1 FR 2689785 B1 FR2689785 B1 FR 2689785B1 FR 9204487 A FR9204487 A FR 9204487A FR 9204487 A FR9204487 A FR 9204487A FR 2689785 B1 FR2689785 B1 FR 2689785B1
Authority
FR
France
Prior art keywords
adsorption
constituent
separating
gaseous mixture
rotary device
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.)
Expired - Fee Related
Application number
FR9204487A
Other languages
English (en)
Other versions
FR2689785A1 (fr
Inventor
Pierre Petit
Michel Poteau
Jean-Marc Scudier
Xavier Vigor
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.)
Air Liquide SA
Original Assignee
Air Liquide SA
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
Priority to FR9204487A priority Critical patent/FR2689785B1/fr
Application filed by Air Liquide SA filed Critical Air Liquide SA
Priority to CA002111207A priority patent/CA2111207A1/fr
Priority to PCT/FR1993/000288 priority patent/WO1993020925A1/fr
Priority to AU37577/93A priority patent/AU664607B2/en
Priority to EP93922322A priority patent/EP0637262A1/fr
Priority to BR9305472A priority patent/BR9305472A/pt
Priority to JP5518032A priority patent/JPH07501980A/ja
Priority to US08/162,029 priority patent/US5441559A/en
Publication of FR2689785A1 publication Critical patent/FR2689785A1/fr
Application granted granted Critical
Publication of FR2689785B1 publication Critical patent/FR2689785B1/fr
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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
    • B01D53/02—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 adsorption, e.g. preparative gas chromatography
    • B01D53/04—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 adsorption, e.g. preparative gas chromatography with stationary adsorbents
    • B01D53/0407—Constructional details of adsorbing systems
    • B01D53/0431—Beds with radial gas flow
    • 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
    • B01D53/02—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 adsorption, e.g. preparative gas chromatography
    • B01D53/04—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 adsorption, e.g. preparative gas chromatography with stationary adsorbents
    • B01D53/047—Pressure swing adsorption
    • B01D53/0476—Vacuum pressure swing adsorption
    • 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
    • B01D53/02—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 adsorption, e.g. preparative gas chromatography
    • B01D53/06—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 adsorption, e.g. preparative gas chromatography with moving adsorbents, e.g. rotating beds
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B13/00—Oxygen; Ozone; Oxides or hydroxides in general
    • C01B13/02—Preparation of oxygen
    • C01B13/0229—Purification or separation processes
    • C01B13/0248—Physical processing only
    • C01B13/0259—Physical processing only by adsorption on solids
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2257/00—Components to be removed
    • B01D2257/10—Single element gases other than halogens
    • B01D2257/102—Nitrogen
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2259/00—Type of treatment
    • B01D2259/40—Further details for adsorption processes and devices
    • B01D2259/40003—Methods relating to valve switching
    • B01D2259/40005—Methods relating to valve switching using rotary valves
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2259/00—Type of treatment
    • B01D2259/40—Further details for adsorption processes and devices
    • B01D2259/406—Further details for adsorption processes and devices using more than four beds
    • B01D2259/4068—Further details for adsorption processes and devices using more than four beds using more than ten beds
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B2210/00—Purification or separation of specific gases
    • C01B2210/0043—Impurity removed
    • C01B2210/0046—Nitrogen
FR9204487A 1992-04-13 1992-04-13 Dispositif rotatif de separation par adsorption d'au moins un constituant d'un melange gazeux. Expired - Fee Related FR2689785B1 (fr)

Priority Applications (8)

Application Number Priority Date Filing Date Title
FR9204487A FR2689785B1 (fr) 1992-04-13 1992-04-13 Dispositif rotatif de separation par adsorption d'au moins un constituant d'un melange gazeux.
PCT/FR1993/000288 WO1993020925A1 (fr) 1992-04-13 1993-03-23 Dispositif rotatif de separation par adsorption d'au moins un constituant d'un melange gazeux
AU37577/93A AU664607B2 (en) 1992-04-13 1993-03-23 Rotary device for separating at least one component of a gaseous mixture by adsorption
EP93922322A EP0637262A1 (fr) 1992-04-13 1993-03-23 Dispositif rotatif de separation par adsorption d'au moins un constituant d'un melange gazeux
CA002111207A CA2111207A1 (fr) 1992-04-13 1993-03-23 Dispositif rotatif de separation par adsorption d'au moins un constituant d'un melange gazeux
BR9305472A BR9305472A (pt) 1992-04-13 1993-03-23 Dispositivo rotativo de separação por adsorção de pelo menos um constituinte de uma mistura gasosa.
JP5518032A JPH07501980A (ja) 1992-04-13 1993-03-23 ガス状混合物から少なくとも一成分を吸着により分離する回転式装置
US08/162,029 US5441559A (en) 1992-04-13 1993-03-23 Rotatable device for the separation by adsorption of at least one constituent of a gaseous mixture

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR9204487A FR2689785B1 (fr) 1992-04-13 1992-04-13 Dispositif rotatif de separation par adsorption d'au moins un constituant d'un melange gazeux.

Publications (2)

Publication Number Publication Date
FR2689785A1 FR2689785A1 (fr) 1993-10-15
FR2689785B1 true FR2689785B1 (fr) 1994-05-20

Family

ID=9428780

Family Applications (1)

Application Number Title Priority Date Filing Date
FR9204487A Expired - Fee Related FR2689785B1 (fr) 1992-04-13 1992-04-13 Dispositif rotatif de separation par adsorption d'au moins un constituant d'un melange gazeux.

Country Status (8)

Country Link
US (1) US5441559A (fr)
EP (1) EP0637262A1 (fr)
JP (1) JPH07501980A (fr)
AU (1) AU664607B2 (fr)
BR (1) BR9305472A (fr)
CA (1) CA2111207A1 (fr)
FR (1) FR2689785B1 (fr)
WO (1) WO1993020925A1 (fr)

Families Citing this family (65)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2722426B1 (fr) * 1994-07-18 1996-08-23 Air Liquide Procede de separation d'azote d'un melange gazeux par adsorption
US5593478A (en) * 1994-09-28 1997-01-14 Sequal Technologies, Inc. Fluid fractionator
SE517561C2 (sv) * 1996-03-04 2002-06-18 Aga Ab Förfarande och anordning för framställning av en gas genom separation från en gasblandning
BE1010028A6 (fr) * 1996-03-04 1997-11-04 Tamis Moleculaires Pour La Pro Procede et dispositif de separation selective d'au moins un composant d'un melange gazeux.
USRE38493E1 (en) * 1996-04-24 2004-04-13 Questair Technologies Inc. Flow regulated pressure swing adsorption system
US5759242A (en) * 1996-07-23 1998-06-02 Praxair Technology, Inc. Radial bed vaccum/pressure swing adsorber vessel
US5814130A (en) * 1996-09-27 1998-09-29 The Boc Group, Inc. Process and apparatus for gas separation
US5814131A (en) * 1996-09-27 1998-09-29 The Boc Group, Inc. Process and apparatus for gas separation
US5807423A (en) * 1996-09-27 1998-09-15 The Boc Group, Inc. Process and apparatus for gas separation
ID19678A (id) * 1996-09-27 1998-07-30 Boc Group Inc Proses dan alat pemisahan gas
US5827358A (en) * 1996-11-08 1998-10-27 Impact Mst, Incorporation Rapid cycle pressure swing adsorption oxygen concentration method and apparatus
US5820656A (en) * 1997-01-21 1998-10-13 The Boc Group, Inc. Process and apparatus for gas separation
US5891217A (en) * 1997-01-21 1999-04-06 The Boc Group, Inc. Process and apparatus for gas separation
US6056804A (en) * 1997-06-30 2000-05-02 Questor Industries Inc. High frequency rotary pressure swing adsorption apparatus
FR2767716B1 (fr) * 1997-08-26 1999-10-01 Air Liquide Appareil de separation de gaz par adsorption et utilisation pour le traitement de flux d'air
JP4708562B2 (ja) * 1997-12-01 2011-06-22 ウエストエアー・テクノロジーズ・インコーポレイテッド モジュール圧力スイング吸収装置
US7094275B2 (en) * 1997-12-01 2006-08-22 Questair Technologies, Inc. Modular pressure swing adsorption apparatus
US6051050A (en) * 1997-12-22 2000-04-18 Questor Industries Inc. Modular pressure swing adsorption with energy recovery
US5980615A (en) * 1998-01-22 1999-11-09 Roe; Robert J. Compact air dryer
US6921597B2 (en) * 1998-09-14 2005-07-26 Questair Technologies Inc. Electrical current generation system
US6143056A (en) * 1998-11-19 2000-11-07 Praxair Technology, Inc. Rotary valve for two bed vacuum pressure swing absorption system
CA2354400A1 (fr) * 1998-12-16 2000-06-22 Questair Technologies Inc. Separation de gaz avec turbomachines centrifuges a courant separe
US6905535B2 (en) * 1998-12-16 2005-06-14 Questair Technologies Inc. Gas separation with split stream centrifugal turbomachinery
WO2000076628A1 (fr) 1999-06-09 2000-12-21 Questair Technologies Inc. Appareil rotatif a adsorption modulee par pression
AU5381300A (en) * 1999-06-10 2001-01-02 Questair Technologies, Inc. Chemical reactor with pressure swing adsorption
CA2274312A1 (fr) * 1999-06-10 2000-12-10 Kevin A. Kaupert Appareil modulaire a adsorption modulee en pression a joints de soupape surdimensionnes
CA2274388A1 (fr) * 1999-06-10 2000-12-10 Bowie Keefer Adsorbateur de surtension de regulation de debit pour adsorption modulee en pression
US7250073B2 (en) * 1999-12-09 2007-07-31 Questair Technologies, Inc. Life support oxygen concentrator
US6514319B2 (en) 1999-12-09 2003-02-04 Questair Technologies Inc. Life support oxygen concentrator
CA2306311C (fr) 2000-04-20 2007-04-10 Quest Air Gases Inc. Structures lamellees adsorbantes
CN1232336C (zh) * 2000-09-25 2005-12-21 探索空气技术公司 多层歧管压力交变吸附装置和方法
CA2320551C (fr) 2000-09-25 2005-12-13 Questair Technologies Inc. Petit appareil d'adsorption modulee en pression
AU2002214858A1 (en) * 2000-10-27 2002-05-06 Questair Technologies, Inc. Systems and processes for providing hydrogen to fuel cells
CA2325072A1 (fr) * 2000-10-30 2002-04-30 Questair Technologies Inc. Systeme de separation de gaz pour pile a combustible a carbonates fondus
US7097925B2 (en) * 2000-10-30 2006-08-29 Questair Technologies Inc. High temperature fuel cell power plant
CA2430271A1 (fr) * 2000-12-08 2002-06-13 Questair Technologies Inc. Procedes et dispositifs pour la separation de gaz par adsorption modulee en pression, avec injection partielle de produit gazeux dans une source d'alimentation a pile a combustible
CA2329475A1 (fr) * 2000-12-11 2002-06-11 Andrea Gibbs Amp a cycle eleve avec adsorbants sensibles a l'humidite atmospherique
US6692545B2 (en) 2001-02-09 2004-02-17 General Motors Corporation Combined water gas shift reactor/carbon dioxide adsorber for use in a fuel cell system
US6964692B2 (en) * 2001-02-09 2005-11-15 General Motors Corporation Carbon monoxide adsorption for carbon monoxide clean-up in a fuel cell system
US6902602B2 (en) * 2002-03-14 2005-06-07 Questair Technologies Inc. Gas separation by combined pressure swing and displacement purge
JP2006505095A (ja) * 2002-03-14 2006-02-09 クエストエアー テクノロジーズ インコーポレイテッド 固体酸化物燃料電池用の水素リサイクル
US6770120B2 (en) * 2002-05-01 2004-08-03 Praxair Technology, Inc. Radial adsorption gas separation apparatus and method of use
US7285350B2 (en) 2002-09-27 2007-10-23 Questair Technologies Inc. Enhanced solid oxide fuel cell systems
EP1652255A2 (fr) * 2003-02-26 2006-05-03 QuestAir Technologies Inc. Recyclage d'hydrogene pour piles a combustible a haute temperature
US7276095B2 (en) * 2003-03-14 2007-10-02 General Motors Corporation Fuel processor module for hydrogen production for a fuel cell engine using pressure swing adsorption
US20040197616A1 (en) * 2003-04-01 2004-10-07 Edlund David J. Oxidant-enriched fuel cell system
US6878186B2 (en) * 2003-09-09 2005-04-12 David Lloyd Neary Pure vacuum swing adsorption system and apparatus
US7443803B2 (en) * 2004-03-23 2008-10-28 Fujitsu Limited Estimating and managing network traffic
US7189280B2 (en) * 2004-06-29 2007-03-13 Questair Technologies Inc. Adsorptive separation of gas streams
CA2585963A1 (fr) * 2004-11-05 2006-05-18 Questair Technologies Inc. Separation de dioxyde de carbone d'autres gaz
US7393382B2 (en) * 2004-12-20 2008-07-01 Idatech Llc Temperature-based breakthrough detection and pressure swing adsorption systems and fuel processing systems including the same
US7833311B2 (en) * 2004-12-20 2010-11-16 Idatech, Llc Temperature-based breakthrough detection and pressure swing adsorption systems and fuel processing systems including the same
US7399342B2 (en) * 2004-12-22 2008-07-15 Idatech, Llc Systems and methods for regulating heating assembly operation through pressure swing adsorption purge control
US20070044657A1 (en) * 2005-09-01 2007-03-01 Laven Arne Fuel cell systems and methods for passively increasing hydrogen recovery through vacuum-assisted pressure swing adsorption
US20070289445A1 (en) * 2006-06-15 2007-12-20 Mei Hua Compact and efficient pressure swing oxygen concentrator
US8070841B2 (en) * 2007-12-12 2011-12-06 Idatech, Llc Systems and methods for supplying auxiliary fuel streams during intermittent byproduct discharge from pressure swing adsorption assemblies
US7837765B2 (en) 2007-12-12 2010-11-23 Idatech, Llc Systems and methods for supplying auxiliary fuel streams during intermittent byproduct discharge from pressure swing adsorption assemblies
US8449649B2 (en) 2010-05-11 2013-05-28 Idatech, Llc Systems and methods for starting up pressure swing adsorption assemblies and hydrogen-producing fuel processing systems including the same
US8920996B2 (en) 2010-05-11 2014-12-30 Dcns Systems and methods for regulating fuel cell air flow during low loads or cold temperature operation
US8920732B2 (en) 2011-02-15 2014-12-30 Dcns Systems and methods for actively controlling steam-to-carbon ratio in hydrogen-producing fuel processing systems
NL2011310C2 (en) * 2013-08-15 2014-09-29 Ice Ind Properties B V Fluid distributing apparatus.
US11177494B2 (en) 2018-03-05 2021-11-16 H2 Powertech, Llc Systems and methods for forming a liquid mixture having a predetermined mix ratio and reforming systems, reforming methods, fuel cell systems, and fuel cell methods that utilize the liquid mixture
ES2751176B2 (es) * 2018-09-29 2021-07-21 Bluegeneration S L Instalación y procedimiento para recuperar sustancias gaseosas a partir de corrientes gaseosas
US11953104B2 (en) 2021-01-29 2024-04-09 Pathway Industries, Inc. Rotary multi-way distributor with plural port tracks
CN116440654B (zh) * 2023-03-13 2023-11-21 河北红光燃料有限责任公司 一种燃煤烟气脱硫脱硝脱碳设备

Family Cites Families (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1590266A (en) * 1924-08-28 1926-06-29 Hoechst Ag Continuous-absorption apparatus
GB239189A (en) * 1924-08-28 1926-07-15 Hoechst Ag Apparatus for subjecting gases or vapours to the absorptive action of solids
DE709018C (de) * 1939-01-11 1941-08-04 Carbo Norit Union Verwaltungs Vorrichtung zur kontinuierlichen Durchfuehrung von Adsorptionsverfahren
FR1007584A (fr) * 1950-01-04 1952-05-07 Ateliers Et Chantiers Loire Sa Perfectionnement à la captation des vapeurs dans les milieux gazeux
US2680492A (en) * 1951-06-22 1954-06-08 Roger S Kopp Air dehydration unit
US2877861A (en) * 1957-12-23 1959-03-17 Jefferson Lake Sulphur Co Method of and system for recovering hs from natural gas containing a high percentage of hs
DE1544036C3 (de) * 1966-03-11 1978-08-31 Graeff, Roderich Wilhelm, Dr.-Ing., 6100 Darmstadt Verfahren zur selektiven Adsorption von Bestandteilen eines Gas- oder Flüssigkeitsgemisches und Vorrichtung mit Adsorptionskammern zur Durchführung des Verfahrens
US4614205A (en) * 1984-12-10 1986-09-30 Uop Inc. Rotary valve with two seating surfaces for interconnecting conduits
US4614204A (en) * 1984-12-10 1986-09-30 Uop Inc. Rotary valve for interconnecting conduits in three groups
US4778492A (en) * 1987-02-19 1988-10-18 Advanced Separation Technologies Incorporated Continuous gas treatment method and apparatus for adsorption processes
US4775484A (en) * 1987-03-09 1988-10-04 Life Systems, Inc. Method and apparatus for the continuous separation of contaminants from a fluid mixture
US4946479A (en) * 1987-10-28 1990-08-07 Daikin Industries, Ltd. Apparatus for solvent recovery
AT389822B (de) * 1988-07-08 1990-02-12 Andritz Ag Maschf Verfahren zum kontinuierlichen reinigen von gasen von mitgefuehrten beladestoffen sowie vorrichtung zu seiner durchfuehrung
US5112367A (en) * 1989-11-20 1992-05-12 Hill Charles C Fluid fractionator
US5057128A (en) * 1990-07-03 1991-10-15 Flakt, Inc. Rotary adsorption assembly
FR2667801B1 (fr) * 1990-10-11 1992-12-04 Air Liquide Procede et equipement de separation par adsorption d'au moins un constituant d'un melange gazeux.
US5248325A (en) * 1991-05-09 1993-09-28 Mitsubishi Jukogyo Kabushiki Kaisha Gas separating system and gas recovery system

Also Published As

Publication number Publication date
BR9305472A (pt) 1994-10-11
FR2689785A1 (fr) 1993-10-15
WO1993020925A1 (fr) 1993-10-28
AU664607B2 (en) 1995-11-23
AU3757793A (en) 1993-11-18
JPH07501980A (ja) 1995-03-02
EP0637262A1 (fr) 1995-02-08
US5441559A (en) 1995-08-15
CA2111207A1 (fr) 1993-10-28

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