FR2420366A1 - PROCESS FOR SEPARATING AT LEAST ONE GAS FROM A GAS MIXTURE BY USING AT LEAST TWO STAGES OF A SERIAL CROSS-THROUGH DEVICE, INCLUDING A SEPARATION MEMBRANE - Google Patents

PROCESS FOR SEPARATING AT LEAST ONE GAS FROM A GAS MIXTURE BY USING AT LEAST TWO STAGES OF A SERIAL CROSS-THROUGH DEVICE, INCLUDING A SEPARATION MEMBRANE

Info

Publication number
FR2420366A1
FR2420366A1 FR7906906A FR7906906A FR2420366A1 FR 2420366 A1 FR2420366 A1 FR 2420366A1 FR 7906906 A FR7906906 A FR 7906906A FR 7906906 A FR7906906 A FR 7906906A FR 2420366 A1 FR2420366 A1 FR 2420366A1
Authority
FR
France
Prior art keywords
gas
total pressure
separation membrane
passed
separating
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
FR7906906A
Other languages
French (fr)
Other versions
FR2420366B1 (en
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.)
Monsanto Co
Original Assignee
Monsanto Co
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 claimed from US05/888,105 external-priority patent/US4180388A/en
Priority claimed from US05/888,103 external-priority patent/US4180552A/en
Application filed by Monsanto Co filed Critical Monsanto Co
Publication of FR2420366A1 publication Critical patent/FR2420366A1/en
Application granted granted Critical
Publication of FR2420366B1 publication Critical patent/FR2420366B1/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01C—AMMONIA; CYANOGEN; COMPOUNDS THEREOF
    • C01C1/00—Ammonia; Compounds thereof
    • C01C1/02—Preparation, purification or separation of ammonia
    • C01C1/04—Preparation of ammonia by synthesis in the gas phase
    • C01C1/0405—Preparation of ammonia by synthesis in the gas phase from N2 and H2 in presence of a catalyst
    • C01C1/0476—Purge gas treatment, e.g. for removal of inert gases or recovery of H2
    • 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
    • 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
    • B01D53/225—Multiple stage diffusion
    • B01D53/226—Multiple stage diffusion in serial connexion
    • 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
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P20/00—Technologies relating to chemical industry
    • Y02P20/50—Improvements relating to the production of bulk chemicals
    • Y02P20/52—Improvements relating to the production of bulk chemicals using catalysts, e.g. selective catalysts

Landscapes

  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • General Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Organic Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Separation Using Semi-Permeable Membranes (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Hydrogen, Water And Hydrids (AREA)

Abstract

Procédé de séparation d'au moins un gaz à partir d'un mélange d'alimentation gazeux et nouveaux produits ainsi obtenus. Dans ce procédé, on fait passer le mélange d'alimentation gazeux vers au moins deux étages de dispositif de perméation 36, 42 (ou de traversée) en série; chaque étage contient une membrane de séparation qui a une face d'alimentation et une face de sortie du produit ayant traversé et présente une perméation (ou traversée) sélective d'au moins un gaz, par comparaison avec la traversée d'au moins un autre gaz; une différence de pressions totales est maintenue sur l'epaisseur de la membrane de séparation dans chaque étage de dispositif de traversée pour fournir une force d'entraînement pour la traversée d'au moins un gaz sur la membrane; le rapport entre la pression totale sur la face d'alimentation et la pression totale sur la face de sortie du produit ayant traversé, pour au moins un étage du dispositif de perméation ou de traversée, est inférieur au rapport entre la pression totale sur la face d'alimentation et la pression totale sur la face de sortie (du produit ayant traversé) de la membrane de séparation pour au moins un étage suivant du dispositif de traversée, c'est-à-dire en aval. La présente invention est particulièrement utile pour permettre la séparation d'au moins un gaz à partir d'un mélange gazeux et, dans un exemple de réalisation, elle sert à séparer au moins un gaz employé pour traiter un courant de purge de synthèse d'ammoniac.Process for separating at least one gas from a gaseous feed mixture and new products thus obtained. In this process, the gas feed mixture is passed to at least two stages of permeation device 36, 42 (or feedthrough) in series; each stage contains a separation membrane which has a supply face and an outlet face of the product having passed through and has a selective permeation (or passage) of at least one gas, compared with the passage of at least one other gas; a total pressure difference is maintained across the thickness of the separation membrane in each lead-through device stage to provide a driving force for the crossing of at least one gas over the membrane; the ratio between the total pressure on the supply face and the total pressure on the outlet face of the product having passed through, for at least one stage of the permeation or feed-through device, is less than the ratio between the total pressure on the face supply and the total pressure on the outlet face (of the product having passed through) of the separation membrane for at least one next stage of the crossing device, that is to say downstream. The present invention is particularly useful for allowing the separation of at least one gas from a gas mixture and, in an exemplary embodiment, it is useful for separating at least one gas used to treat a synthesis purge stream of ammonia.

FR7906906A 1978-03-20 1979-03-19 PROCESS FOR SEPARATING AT LEAST ONE GAS FROM A GASEOUS MIXTURE USING AT LEAST TWO STAGES OF SERIAL CROSSING DEVICE, COMPRISING A SEPARATION MEMBRANE Expired FR2420366B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US05/888,105 US4180388A (en) 1978-03-20 1978-03-20 Processes
US05/888,103 US4180552A (en) 1978-03-20 1978-03-20 Process for hydrogen recovery from ammonia purge gases

Publications (2)

Publication Number Publication Date
FR2420366A1 true FR2420366A1 (en) 1979-10-19
FR2420366B1 FR2420366B1 (en) 1985-05-31

Family

ID=27128872

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7906906A Expired FR2420366B1 (en) 1978-03-20 1979-03-19 PROCESS FOR SEPARATING AT LEAST ONE GAS FROM A GASEOUS MIXTURE USING AT LEAST TWO STAGES OF SERIAL CROSSING DEVICE, COMPRISING A SEPARATION MEMBRANE

Country Status (14)

Country Link
JP (1) JPS6022966B2 (en)
KR (1) KR840000966B1 (en)
AU (1) AU517235B2 (en)
BR (1) BR7901688A (en)
CA (1) CA1129626A (en)
DD (1) DD142299A5 (en)
DE (2) DE2910661A1 (en)
FR (1) FR2420366B1 (en)
GB (1) GB2016945B (en)
IT (1) IT1113311B (en)
NL (1) NL182796C (en)
PL (1) PL123383B1 (en)
RO (2) RO84536B (en)
TR (1) TR20794A (en)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4367135A (en) * 1981-03-12 1983-01-04 Monsanto Company Processes
US4362613A (en) * 1981-03-13 1982-12-07 Monsanto Company Hydrocracking processes having an enhanced efficiency of hydrogen utilization
EP0075431A1 (en) * 1981-09-17 1983-03-30 Monsanto Company Method of separating one gas from a mixture of gases
JPS5990613A (en) * 1982-07-29 1984-05-25 リンデ・アクチエンゲゼルシヤフト Method and apparatus for separating gaseous mixture
WO1990007372A1 (en) * 1986-10-27 1990-07-12 Richard Alan Sauer Process for membrane separation of gas mixtures
US4758250A (en) * 1987-06-01 1988-07-19 Air Products And Chemicals, Inc. Ammonia separation using ion exchange polymeric membranes and sorbents
US4762535A (en) * 1987-06-02 1988-08-09 Air Products And Chemicals, Inc. Ammonia separation using semipermeable membranes
DE4010602A1 (en) * 1989-04-05 1990-10-11 Piesteritz Agrochemie Residual gas re-use in ammonia synthesis plant
DE4010603A1 (en) * 1989-04-05 1990-10-11 Piesteritz Agrochemie METHOD FOR THE PUBLIC USE OF PRODUCT RELAXATION GAS
FR2731163B1 (en) * 1995-03-03 1997-06-20 Air Liquide PROCESS AND PLANT FOR SEPARATING A GAS MIXTURE BY PERMEATION
JP2008247654A (en) * 2007-03-29 2008-10-16 Hiroshima Univ Method for separating ammonia, method for producing ammonia, and gas separation membrane
JP7031214B2 (en) * 2017-10-13 2022-03-08 宇部興産株式会社 Helium-enriched gas production method and gas separation system
WO2024117237A1 (en) * 2022-12-02 2024-06-06 日本碍子株式会社 Separation membrane system

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3657113A (en) 1970-02-03 1972-04-18 Mobil Oil Corp Separating fluids with selective membranes
JPS5610089B2 (en) * 1973-07-31 1981-03-05
JPS5297684A (en) * 1976-02-12 1977-08-16 Mitsubishi Electric Corp Semiconductor element
JPS52114576A (en) * 1976-03-24 1977-09-26 Toshiba Corp Gas separator

Also Published As

Publication number Publication date
NL7902101A (en) 1979-09-24
DE2953814A1 (en) 1982-09-16
NL182796B (en) 1987-12-16
RO84536B (en) 1984-08-30
FR2420366B1 (en) 1985-05-31
JPS6022966B2 (en) 1985-06-05
TR20794A (en) 1982-08-17
KR830000538A (en) 1983-04-16
KR840000966B1 (en) 1984-07-02
CA1129626A (en) 1982-08-17
PL123383B1 (en) 1982-10-30
NL182796C (en) 1988-05-16
JPS54130484A (en) 1979-10-09
BR7901688A (en) 1979-10-16
AU4521879A (en) 1979-09-27
GB2016945B (en) 1982-09-15
RO78306A (en) 1982-04-12
IT1113311B (en) 1986-01-20
GB2016945A (en) 1979-10-03
RO84536A (en) 1984-06-21
PL214236A1 (en) 1980-02-25
IT7921114A0 (en) 1979-03-19
AU517235B2 (en) 1981-07-16
DE2910661A1 (en) 1979-10-18
DD142299A5 (en) 1980-06-18

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