ES2000265A6 - Procedimiento de recuperacion para adsorcion de al menos un constituyente preferiblemente adsorbible de una mezcla gaseosa - Google Patents
Procedimiento de recuperacion para adsorcion de al menos un constituyente preferiblemente adsorbible de una mezcla gaseosaInfo
- Publication number
- ES2000265A6 ES2000265A6 ES8600168A ES8600168A ES2000265A6 ES 2000265 A6 ES2000265 A6 ES 2000265A6 ES 8600168 A ES8600168 A ES 8600168A ES 8600168 A ES8600168 A ES 8600168A ES 2000265 A6 ES2000265 A6 ES 2000265A6
- Authority
- ES
- Spain
- Prior art keywords
- adsorber
- stage
- cycle
- termed
- pressure
- 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
Links
- 239000000203 mixture Substances 0.000 title abstract 3
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 abstract 2
- 230000006837 decompression Effects 0.000 abstract 2
- 238000001179 sorption measurement Methods 0.000 abstract 2
- 229910002092 carbon dioxide Inorganic materials 0.000 abstract 1
- 239000001569 carbon dioxide Substances 0.000 abstract 1
- 238000011084 recovery Methods 0.000 abstract 1
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
- B01D53/0476—Vacuum 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
- B01D2253/102—Carbon
-
- 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
- B01D2256/22—Carbon dioxide
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2257/00—Components to be removed
- B01D2257/50—Carbon oxides
- B01D2257/504—Carbon dioxide
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2258/00—Sources of waste gases
- B01D2258/02—Other waste gases
- B01D2258/025—Other waste gases from metallurgy plants
-
- 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
- B01D2259/40011—Methods relating to the process cycle in pressure or temperature swing adsorption
- B01D2259/40013—Pressurization
- B01D2259/40015—Pressurization with two sub-steps
-
- 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
- B01D2259/40011—Methods relating to the process cycle in pressure or temperature swing adsorption
- B01D2259/4002—Production
- B01D2259/40022—Production with two sub-steps
-
- 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
- B01D2259/40011—Methods relating to the process cycle in pressure or temperature swing adsorption
- B01D2259/40028—Depressurization
- B01D2259/4003—Depressurization with two sub-steps
-
- 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
- B01D2259/40011—Methods relating to the process cycle in pressure or temperature swing adsorption
- B01D2259/40028—Depressurization
- B01D2259/40032—Depressurization with three sub-steps
-
- 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
- B01D2259/40011—Methods relating to the process cycle in pressure or temperature swing adsorption
- B01D2259/40058—Number of sequence steps, including sub-steps, per cycle
- B01D2259/40062—Four
-
- 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
- B01D2259/40011—Methods relating to the process cycle in pressure or temperature swing adsorption
- B01D2259/40058—Number of sequence steps, including sub-steps, per cycle
- B01D2259/40066—Six
-
- 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
- B01D2259/40011—Methods relating to the process cycle in pressure or temperature swing adsorption
- B01D2259/40058—Number of sequence steps, including sub-steps, per cycle
- B01D2259/40067—Seven
-
- 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
- B01D2259/00—Type of treatment
- B01D2259/40—Further details for adsorption processes and devices
- B01D2259/403—Further details for adsorption processes and devices using three beds
-
- 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
- B01D2259/404—Further details for adsorption processes and devices using four beds
-
- 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
- Y02C—CAPTURE, STORAGE, SEQUESTRATION OR DISPOSAL OF GREENHOUSE GASES [GHG]
- Y02C20/00—Capture or disposal of greenhouse gases
- Y02C20/40—Capture or disposal of greenhouse gases of CO2
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Analytical Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Separation Of Gases By Adsorption (AREA)
- Carbon And Carbon Compounds (AREA)
Abstract
EL PROCEDIMIENTO DESCRITO, APLICABLE A LA RECUPERACION DE ANHIDRIDO CARBONICO A PARTIR DE MEZCLAS QUE NO CONTIENEN MAS QUE 10 A 30% DEL MISMO, INCLUYE UN CICLO DE ADSORCION QUE UTILIZA DOS ADSORBEDORES Y COMPRENDE LAS FASES SIGUIENTES: A) UNA ADSORCION ISOBARA A APROXIMADAMENTE 1 BAR, EN LA CUAL LA MEZCLA A TRATAR CIRCULA A TRAVES DE UN ADSORBEDOR EN UN SENTIDO DENOMINADO ISOCORRIENTE; B) UNA PRIMERA DESCOMPRESION DEL ADSORBEDOR A ISOCORRIENTE HASTA UNA PRESION DEL ORDEN DE 0,6 BAR; C) UNA SEGUNDA DESCOMPRESION DEL ADSORBEDOR A CONTRACORRIENTE HASTA UNA PRESION DEL ORDEN DE 0,1 BAR; Y D) UNA SUBIDA DE PRESION DEL ADSORBEDOR HASTA APROXIMADAMENTE 1 BAR. DURANTE ESTA FASE, DESPUES DE UNA FASE DE EQUILIBRADO, SE RECICLA HACIA ESTE ADSORBEDOR UNA PARTE DEL GAS EXTRAIDO DEL OTRO ADSORBEDOR EN C), CONSTITUYENDO EL RESTO DE ESTE GAS LA PRODUCCION DE LA INSTALACION.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR8510405A FR2584307B1 (fr) | 1985-07-08 | 1985-07-08 | Procede de traitement d'un melange gazeux par adsorption |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| ES2000265A6 true ES2000265A6 (es) | 1988-02-01 |
Family
ID=9321064
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| ES8600168A Expired ES2000265A6 (es) | 1985-07-08 | 1986-07-07 | Procedimiento de recuperacion para adsorcion de al menos un constituyente preferiblemente adsorbible de una mezcla gaseosa |
Country Status (14)
| Country | Link |
|---|---|
| US (1) | US4840647A (es) |
| EP (1) | EP0227771B1 (es) |
| JP (1) | JPS62503155A (es) |
| AR (1) | AR240988A1 (es) |
| AU (1) | AU586016B2 (es) |
| BR (1) | BR8603172A (es) |
| CA (1) | CA1301076C (es) |
| DE (1) | DE3673785D1 (es) |
| ES (1) | ES2000265A6 (es) |
| FR (1) | FR2584307B1 (es) |
| NZ (1) | NZ216797A (es) |
| PT (1) | PT82929A (es) |
| WO (1) | WO1987000076A1 (es) |
| ZA (1) | ZA865009B (es) |
Families Citing this family (31)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2633846B1 (fr) * | 1988-07-05 | 1991-04-19 | Air Liquide | Procede de traitement d'un melange gazeux par adsorption a variation de pression |
| FR2633847B1 (fr) * | 1988-07-08 | 1991-04-19 | Air Liquide | Procede de traitement d'un melange gazeux par adsorption |
| US5137549A (en) * | 1988-10-14 | 1992-08-11 | Vbm Corporation | Two stage super-enriched oxygen concentrator |
| FR2647431B1 (fr) * | 1989-05-24 | 1991-08-16 | Air Liquide | Procede et installation de production d'oxygene gazeux sous haute pression |
| JP3076912B2 (ja) * | 1989-11-08 | 2000-08-14 | 株式会社日立製作所 | 混合ガスの分離方法及び装置 |
| JPH04505448A (ja) * | 1990-03-02 | 1992-09-24 | ル・エール・リクイツド・ソシエテ・アノニム・プール・ル・エチユド・エ・ル・エクスプルワテシヨン・デ・プロセデ・ジエオルジエ・クロード | 空気から吸着分離による酸素の製造方法 |
| US5084075A (en) * | 1990-04-10 | 1992-01-28 | Air Products And Chemicals, Inc. | Vacuum swing adsorption process for production of 95+% n2 from ambient air |
| US5176722A (en) * | 1990-06-19 | 1993-01-05 | The Boc Group, Inc. | Pressure swing adsorption method for separating gaseous mixtures |
| US5074893A (en) * | 1990-09-04 | 1991-12-24 | On Site Gas Systems, Inc. | Fluid adsorption system |
| JPH04358516A (ja) * | 1991-02-05 | 1992-12-11 | Teisan Kk | 排ガス処理方法 |
| JP3215713B2 (ja) * | 1992-03-17 | 2001-10-09 | クラレケミカル株式会社 | 窒素ガス分離方法 |
| FR2718056B1 (fr) * | 1994-03-30 | 1996-05-03 | Air Liquide | Procédé de production d'un gaz par adsorption. |
| US5520720A (en) * | 1994-11-30 | 1996-05-28 | The Boc Group, Inc. | Pressure swing adsorption process |
| US5531808A (en) * | 1994-12-23 | 1996-07-02 | The Boc Group, Inc. | Removal of carbon dioxide from gas streams |
| DE29719775U1 (de) * | 1996-12-11 | 1998-02-05 | SGI-Prozesstechnik GmbH, 63674 Altenstadt | Druckwechselanlage zur Gewinnung von Sauerstoff aus der Luft |
| ATE261757T1 (de) * | 1996-12-11 | 2004-04-15 | Sgi Prozess Technik Gmbh | Verfahren zum betrieb einer druckwechselanlage zur gewinnung von sauerstoff aus der luft |
| US6010555A (en) * | 1997-11-04 | 2000-01-04 | Praxair Technology, Inc. | Vacuum pressure swing adsorption system and method |
| JPH11137942A (ja) * | 1997-11-11 | 1999-05-25 | Kansai Coke & Chem Co Ltd | 圧力スイング吸着法を用いるガス精製法 |
| US6245127B1 (en) | 1999-05-27 | 2001-06-12 | Praxair Technology, Inc. | Pressure swing adsorption process and apparatus |
| FR2836060B1 (fr) * | 2002-02-15 | 2004-11-19 | Air Liquide | Procede et unite de production d'hydrogene a partir d'un gaz de charge riche en hydrogene |
| FR2874683B1 (fr) * | 2004-08-31 | 2007-03-30 | Air Liquide | Procede et appareil de production de dioxyde de carbone a partir d'un gaz siderurgique par absorption chimique |
| US7618478B2 (en) * | 2006-04-03 | 2009-11-17 | Praxair Technology, Inc. | Process and apparatus to recover medium purity carbon dioxide |
| US7740688B2 (en) * | 2006-09-26 | 2010-06-22 | Praxair Technology, Inc. | Process and apparatus for carbon dioxide recovery |
| FR2933313B1 (fr) * | 2008-07-03 | 2011-07-22 | Air Liquide | Traitement de gaz humide contenant des poussieres |
| US8535417B2 (en) * | 2008-07-29 | 2013-09-17 | Praxair Technology, Inc. | Recovery of carbon dioxide from flue gas |
| US7927573B2 (en) * | 2008-09-26 | 2011-04-19 | Praxair Technology, Inc. | Multi-stage process for purifying carbon dioxide and producing acid |
| FR2937258B1 (fr) * | 2008-10-21 | 2011-05-20 | Air Liquide | Repressurisation d'un vsa traitant un melange gazeux comprenant un combustible |
| US8709136B2 (en) | 2012-04-03 | 2014-04-29 | Air Products And Chemicals, Inc. | Adsorption process |
| US11148092B2 (en) | 2018-06-27 | 2021-10-19 | University Of South Carolina | Temperature-vacuum swing adsorption process for capture of CO2 |
| US11007473B2 (en) | 2018-07-09 | 2021-05-18 | University Of South Carolina | Removal of water vapor from streams containing carbon dioxide and/or carbon monoxide |
| JP2023161481A (ja) * | 2022-04-25 | 2023-11-07 | 株式会社デンソー | 二酸化炭素回収システム |
Family Cites Families (19)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NL262128A (es) * | 1960-03-09 | 1900-01-01 | ||
| NL297067A (es) * | 1962-09-04 | 1900-01-01 | ||
| CH417534A (de) * | 1964-07-01 | 1966-07-31 | Exxon Research Engineering Co | Adsorptionsverfahren |
| US3430418A (en) * | 1967-08-09 | 1969-03-04 | Union Carbide Corp | Selective adsorption process |
| FR1602353A (es) * | 1968-08-08 | 1970-11-16 | ||
| US3564816A (en) * | 1968-12-30 | 1971-02-23 | Union Carbide Corp | Selective adsorption process |
| US3636679A (en) * | 1971-01-04 | 1972-01-25 | Union Carbide Corp | Selective adsorption gas separation process |
| US3788037A (en) * | 1971-06-28 | 1974-01-29 | Don C Shell | Separation process |
| US3738087A (en) * | 1971-07-01 | 1973-06-12 | Union Carbide Corp | Selective adsorption gas separation process |
| US3751878A (en) * | 1972-10-20 | 1973-08-14 | Union Carbide Corp | Bulk separation of carbon dioxide from natural gas |
| FR2270927A1 (en) * | 1974-05-15 | 1975-12-12 | Air Liquide | Gas mixt. fractioning of adsorption type - uses pressurising and expanding phases in several adsorption zones followed by equalising zone |
| US4077779A (en) * | 1976-10-15 | 1978-03-07 | Air Products And Chemicals, Inc. | Hydrogen purification by selective adsorption |
| CA1202576A (en) * | 1982-01-12 | 1986-04-01 | Satoshi Ihara | Process for separating carbonic acid gas from methane- rich gas |
| FR2534827A1 (fr) * | 1982-10-22 | 1984-04-27 | Air Liquide | Procede de traitement de gaz par adsorption comportant plusieurs adsorbeurs en phase de production simultanee |
| FR2535981A1 (fr) * | 1982-11-12 | 1984-05-18 | Air Liquide | Procede et installation de separation par adsorption d'un gaz composite |
| JPS6096A (ja) * | 1983-06-16 | 1985-01-05 | 松下電器産業株式会社 | 高周波加熱装置 |
| US4512780A (en) * | 1983-11-08 | 1985-04-23 | Union Carbide Corporation | Pressure swing adsorption with intermediate product recovery |
| PT79586B (en) * | 1983-12-07 | 1986-10-15 | Calgon Carbon Corp | Process for separating a feed stream gas mixture using pressure swing adsorption |
| JPS60168513A (ja) * | 1983-12-15 | 1985-09-02 | ベルクヴエルクスフエルバント・ゲゼルシヤフト・ミツト・ベシユレンクテル・ハフツング | 吸着剤に相対的に強く吸着されうるガスの他は大体において相対的に弱い吸着性のガスのみを含有する混合ガスから前者のガスを分離しかつ回収する方法 |
-
1985
- 1985-07-08 FR FR8510405A patent/FR2584307B1/fr not_active Expired
-
1986
- 1986-07-04 DE DE8686904210T patent/DE3673785D1/de not_active Expired - Lifetime
- 1986-07-04 AU AU61288/86A patent/AU586016B2/en not_active Ceased
- 1986-07-04 ZA ZA865009A patent/ZA865009B/xx unknown
- 1986-07-04 JP JP61503745A patent/JPS62503155A/ja active Pending
- 1986-07-04 WO PCT/FR1986/000240 patent/WO1987000076A1/fr not_active Ceased
- 1986-07-04 EP EP86904210A patent/EP0227771B1/fr not_active Expired - Lifetime
- 1986-07-07 PT PT82929A patent/PT82929A/pt not_active Application Discontinuation
- 1986-07-07 BR BR8603172A patent/BR8603172A/pt unknown
- 1986-07-07 ES ES8600168A patent/ES2000265A6/es not_active Expired
- 1986-07-08 AR AR304471A patent/AR240988A1/es active
- 1986-07-08 CA CA000513322A patent/CA1301076C/fr not_active Expired - Lifetime
- 1986-07-09 NZ NZ216797A patent/NZ216797A/xx unknown
-
1988
- 1988-10-21 US US07/267,636 patent/US4840647A/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| NZ216797A (en) | 1987-07-31 |
| US4840647A (en) | 1989-06-20 |
| JPS62503155A (ja) | 1987-12-17 |
| CA1301076C (fr) | 1992-05-19 |
| AU586016B2 (en) | 1989-06-29 |
| EP0227771B1 (fr) | 1990-08-29 |
| AR240988A1 (es) | 1991-04-30 |
| AR240988A2 (es) | 1991-04-30 |
| DE3673785D1 (de) | 1990-10-04 |
| PT82929A (fr) | 1986-08-01 |
| FR2584307B1 (fr) | 1989-10-20 |
| BR8603172A (pt) | 1987-02-24 |
| EP0227771A1 (fr) | 1987-07-08 |
| AU6128886A (en) | 1987-01-30 |
| ZA865009B (en) | 1987-02-25 |
| FR2584307A1 (fr) | 1987-01-09 |
| WO1987000076A1 (fr) | 1987-01-15 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| ES2000265A6 (es) | Procedimiento de recuperacion para adsorcion de al menos un constituyente preferiblemente adsorbible de una mezcla gaseosa | |
| FR2633847B1 (fr) | Procede de traitement d'un melange gazeux par adsorption | |
| GB1456465A (en) | Gas separation | |
| DE3462999D1 (en) | Process for separating aggressive gases from gas mixtures | |
| EG15650A (en) | Improved process and apparatus for the production of ammonia | |
| JPS6443327A (en) | Method for obtaining high concentration oxygen from air | |
| ES481711A1 (es) | Procedimiento para el tratamiento de agua. | |
| FI864524L (fi) | Foerbaettrat adsorptionsfoerfarande med trycksvaengning. | |
| KR860007009A (ko) | 산소-보강된 기류의 제조방법 | |
| KR880000128A (ko) | 흡착에 의한 기체 혼합물의 분리 방법 | |
| ATE88988T1 (de) | Verfahren und vorrichtung zur herstellung von ozonhaeltigen gasen und loesungen. | |
| MW3385A1 (en) | Gas separation | |
| JPS6434422A (en) | Method for separating and recovering high purity co2 from exhaust gas discharged from ironworks | |
| DE3166854D1 (en) | Process for producing deuterium enriched water during the production of hydrogen | |
| ES8703289A1 (es) | Una instalacion para producir aire sobreoxigenado por adsorcion | |
| JPS5663804A (en) | Oxygen concentrating method | |
| JPS52152893A (en) | Separation and recovery of nitrogen | |
| GB1439614A (en) | Selective removal of constituents from fluids | |
| ES2006971A6 (es) | Procedimiento e instalacion para la recuperacion de oxidos de nitrogeno procedentes de plantas industriales. | |
| GB1292122A (en) | Improvements in or relating to the treatment of gaseous mixtures | |
| US3191361A (en) | Method of relieving a hydrogen-containing gas-mixture of readily soluble gases contained in the mixture | |
| JPS55152518A (en) | Concentrating method for gas containing oxygen | |
| US1212456A (en) | Purification of gases. | |
| JPS5524517A (en) | Air separation process by varying pressure | |
| JPS57174116A (en) | Oxygen concentrating method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| FD1A | Patent lapsed |
Effective date: 20020708 |