CA2198527A1 - Single stage secondary high purity oxygen concentrator - Google Patents

Single stage secondary high purity oxygen concentrator

Info

Publication number
CA2198527A1
CA2198527A1 CA002198527A CA2198527A CA2198527A1 CA 2198527 A1 CA2198527 A1 CA 2198527A1 CA 002198527 A CA002198527 A CA 002198527A CA 2198527 A CA2198527 A CA 2198527A CA 2198527 A1 CA2198527 A1 CA 2198527A1
Authority
CA
Canada
Prior art keywords
molecular sieve
sieve bed
valve
outlet valve
charge cycle
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.)
Granted
Application number
CA002198527A
Other languages
French (fr)
Other versions
CA2198527C (en
Inventor
Robert Louis Cramer
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.)
Cobham Mission Systems Davenport LSS Inc
Original Assignee
Litton Systems Inc
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 Litton Systems Inc filed Critical Litton Systems Inc
Publication of CA2198527A1 publication Critical patent/CA2198527A1/en
Application granted granted Critical
Publication of CA2198527C publication Critical patent/CA2198527C/en
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
    • B01D53/047—Pressure swing adsorption
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2253/00—Adsorbents used in seperation treatment of gases and vapours
    • B01D2253/10—Inorganic adsorbents
    • B01D2253/106—Silica or silicates
    • B01D2253/108—Zeolites
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2253/00—Adsorbents used in seperation treatment of gases and vapours
    • B01D2253/10—Inorganic adsorbents
    • B01D2253/116—Molecular sieves other than zeolites
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2253/00—Adsorbents used in seperation treatment of gases and vapours
    • B01D2253/25—Coated, impregnated or composite adsorbents
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2256/00—Main component in the product gas stream after treatment
    • B01D2256/12—Oxygen
    • 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
    • B01D2257/104—Oxygen
    • 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
    • B01D2259/402—Further details for adsorption processes and devices using two beds
    • 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
    • B01D53/0446—Means for feeding or distributing gases

Abstract

A single stage secondary high purity oxygen concentrator and method of concentrating oxygen are described. The concentrator has at least a first and a second inlet valve, a first and a second molecular sieve bed, and a first and a second outlet valve. According to a first embodiment of the present invention, the concentrator further comprises a relief valve. During a charge cycle of the first molecular sieve bed, the first inlet valve is open, the first outlet valve is closed, the second inlet valve is closed, and the second outlet valve is open such that adsorbed oxygen of the second molecular sieve bed is desorbed or withdrawn while the first molecular sieve bed is charging. Similarly, during a charge cycle of the second molecular sieve bed, the first input valve is closed, the first outlet valve is open, the second inlet valve is open, and the second outlet valve is closed such that adsorbed oxygen of the first molecular sieve bed is desorbed or withdrawn from the first molecular sieve bed while the second molecular sieve bed is charging. After completion of the charge cycle of the first molecular sieve bed, the first outlet valve opens and a surge of gas is vented by the relief valve and after completion of the charge cycle of the second molecular sieve bed, the second outlet valve opens and a surge of gas is vented by the relief valve.
According to a second embodiment of the present invention, the concentrator further comprises a pump which during the charge cycle of the first molecular sieve bed withdraws adsorbed oxygen from the first molecular sieve bed and during the charge cycle of the second molecular sieve bed withdraws adsorbed oxygen from the second molecular sieve bed.
CA002198527A 1996-07-19 1997-02-26 Single stage secondary high purity oxygen concentrator Expired - Fee Related CA2198527C (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US08/684,950 1996-07-19
US08/684,950 US5766310A (en) 1996-07-19 1996-07-19 Single stage secondary high purity oxygen concentrator

Publications (2)

Publication Number Publication Date
CA2198527A1 true CA2198527A1 (en) 1998-01-20
CA2198527C CA2198527C (en) 2002-08-13

Family

ID=24750191

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002198527A Expired - Fee Related CA2198527C (en) 1996-07-19 1997-02-26 Single stage secondary high purity oxygen concentrator

Country Status (7)

Country Link
US (1) US5766310A (en)
EP (1) EP0819461A1 (en)
JP (1) JPH1087302A (en)
KR (1) KR100287497B1 (en)
AR (1) AR006323A1 (en)
BR (1) BR9704030A (en)
CA (1) CA2198527C (en)

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CA2270216C (en) * 1996-10-31 2006-05-30 Ultrafilter Gmbh Adsorption drier system and method and device for testing the operation thereof
US6156100A (en) * 1999-02-01 2000-12-05 Fantom Technologies, Inc. Method and apparatus for concentrating a gas using a single stage adsorption zone
US6217635B1 (en) 1998-11-09 2001-04-17 Fantom Technologies Inc. Method and apparatus for concentrating a gas using a single stage adsorption chamber
US6394089B1 (en) * 2000-01-18 2002-05-28 Northrop Grumman Corporation Patient ventilator oxygen concentration system
PL191724B1 (en) * 2000-02-18 2006-06-30 Inst Ciezkiej Syntezy Orga Method of separating from each other the constituents of gaseous mixtures of oxygen, nitrogen and argon
US6755895B2 (en) * 2002-04-09 2004-06-29 H2Gen Innovations, Inc. Method and apparatus for pressure swing adsorption
US6997970B2 (en) * 2002-06-25 2006-02-14 Carleton Life Support Systems, Inc. Oxygen/inert gas generator
DE60308615T2 (en) * 2002-08-22 2007-08-23 Honeywell Normalair-Garrett (Holdings) Ltd., Yeovil Method for installing a molecular sieve gas enrichment system
US20040211414A1 (en) * 2003-04-28 2004-10-28 Litton Systems, Inc. Oxygen concentration system having selectable beds
US20070148038A1 (en) * 2005-04-25 2007-06-28 Sundhar Shaam P Plug-In Oxygenator
US7445660B2 (en) 2005-04-27 2008-11-04 Carleton Life Support Systems, Inc. Method for operating gas generators in tandem
US20090065007A1 (en) * 2007-09-06 2009-03-12 Wilkinson William R Oxygen concentrator apparatus and method
US20090205493A1 (en) * 2008-02-20 2009-08-20 Thompson Loren M Method of removing water from an inlet region of an oxygen generating system
US20090205494A1 (en) * 2008-02-20 2009-08-20 Mcclain Michael S Single manifold assembly for oxygen-generating systems
US7722698B2 (en) * 2008-02-21 2010-05-25 Delphi Technologies, Inc. Method of determining the purity of oxygen present in an oxygen-enriched gas produced from an oxygen delivery system
US20090211443A1 (en) * 2008-02-21 2009-08-27 Youngblood James H Self-serviceable filter for an oxygen generating device
US20090214393A1 (en) * 2008-02-22 2009-08-27 Chekal Michael P Method of generating an oxygen-enriched gas for a user
US8075676B2 (en) * 2008-02-22 2011-12-13 Oxus America, Inc. Damping apparatus for scroll compressors for oxygen-generating systems
US20090212962A1 (en) * 2008-02-22 2009-08-27 Delphi Technologies, Inc. Oxygen Generating System with Self-Contained Electronic Diagnostics and Fault-Tolerant Operation
US20090229460A1 (en) * 2008-03-13 2009-09-17 Mcclain Michael S System for generating an oxygen-enriched gas
US8177886B2 (en) * 2009-05-07 2012-05-15 General Electric Company Use of oxygen concentrators for separating N2 from blast furnace gas
US8616207B2 (en) 2010-09-07 2013-12-31 Inova Labs, Inc. Oxygen concentrator heat management system and method
US20120055474A1 (en) 2010-09-07 2012-03-08 Wilkinson William R Methods and systems for providing oxygen enriched gas
EP3578220B1 (en) 2012-10-12 2023-05-24 Inova Labs, Inc. Oxygen concentrator systems and methods
BR112015008210A2 (en) 2012-10-12 2017-07-04 Inova Labs Inc dual oxygen concentrator methods and systems.
BR112015008203A2 (en) 2012-10-12 2017-07-04 Inova Labs Inc method and systems for the supply of oxygen enriched gas.
US9440179B2 (en) 2014-02-14 2016-09-13 InovaLabs, LLC Oxygen concentrator pump systems and methods
US11247015B2 (en) 2015-03-24 2022-02-15 Ventec Life Systems, Inc. Ventilator with integrated oxygen production
US10315002B2 (en) 2015-03-24 2019-06-11 Ventec Life Systems, Inc. Ventilator with integrated oxygen production
WO2017192660A1 (en) 2016-05-03 2017-11-09 Inova Labs, Inc. Method and systems for the delivery of oxygen enriched gas
US10773049B2 (en) 2016-06-21 2020-09-15 Ventec Life Systems, Inc. Cough-assist systems with humidifier bypass
CN106245050B (en) * 2016-08-29 2019-03-05 山东昆达生物科技有限公司 A kind of preparation method of ultrapure oxygen
CN114504714A (en) 2018-05-13 2022-05-17 万泰生命系统公司 Portable medical ventilator system using portable oxygen concentrator
CN114180529A (en) * 2021-11-30 2022-03-15 湖南泰瑞医疗科技有限公司 Medical oxygen purification device and method
TWI810788B (en) * 2022-01-14 2023-08-01 蘇貫庭 Non-electric gas concentration system

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Also Published As

Publication number Publication date
EP0819461A1 (en) 1998-01-21
AR006323A1 (en) 1999-08-25
BR9704030A (en) 1999-02-09
CA2198527C (en) 2002-08-13
KR100287497B1 (en) 2001-04-16
JPH1087302A (en) 1998-04-07
US5766310A (en) 1998-06-16
KR980010303A (en) 1998-04-30

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