GB1480866A - Process for obtaining nitrogen-rich gases from gases containing oxygen and nitrogen - Google Patents

Process for obtaining nitrogen-rich gases from gases containing oxygen and nitrogen

Info

Publication number
GB1480866A
GB1480866A GB35833/75A GB3583375A GB1480866A GB 1480866 A GB1480866 A GB 1480866A GB 35833/75 A GB35833/75 A GB 35833/75A GB 3583375 A GB3583375 A GB 3583375A GB 1480866 A GB1480866 A GB 1480866A
Authority
GB
United Kingdom
Prior art keywords
gas
nitrogen
coke
rich
gases
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
Application number
GB35833/75A
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.)
Bergwerksverband GmbH
Original Assignee
Bergwerksverband 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 Bergwerksverband GmbH filed Critical Bergwerksverband GmbH
Publication of GB1480866A publication Critical patent/GB1480866A/en
Expired 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
    • 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
    • B01D53/04—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
    • B01D53/0473—Rapid pressure swing adsorption
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B21/00—Nitrogen; Compounds thereof
    • C01B21/04—Purification or separation of nitrogen
    • 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
    • B01D2256/10—Nitrogen
    • 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
    • B01D2257/00—Components to be removed
    • B01D2257/50—Carbon oxides
    • B01D2257/502—Carbon monoxide
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2257/00—Components to be removed
    • B01D2257/80—Water
    • 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
    • B01D2259/40001—Methods relating to additional, e.g. intermediate, treatment of process gas
    • 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
    • B01D2259/40035—Equalization
    • B01D2259/40037—Equalization 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
    • B01D2259/40058—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
    • B01D2259/40064—Five
    • 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
    • B01D53/26—Drying gases or vapours
    • B01D53/261—Drying gases or vapours by adsorption

Abstract

1480866 Nitrogen rich gas BERGWERKSVERBAND GmbH 29 Aug 1975 [29 Aug 1974] 35833/75 Heading B1L A process for obtaining nitrogen-rich product gas from a feed gas containing O 2 and N 2 , comprises rejected cycles in each of which carbon-containing molecular sieve coke is desorbed by evacuation and then charged with feed gas which is caused to flow through the coke until the O 2 content of the emergent gas reaches a preselected limiting value, the gas which has passed through up to this point being collected as product gas. The desorption is preferably carried out below 100 mm Hg, and the feed gas is charged at 2-5 bars at 0.01-0.04 N m<SP>3</SP>/m<SP>3</SP> of molecular sieve coke per second for approximately 40-80 seconds and may be air or gas already passed through the coke. The direction of gas flow during desorption may be opposite to that during charging. The sieve coke may be prepared as described in Specifications 1424501 and 1364674.
GB35833/75A 1974-08-29 1975-08-29 Process for obtaining nitrogen-rich gases from gases containing oxygen and nitrogen Expired GB1480866A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2441447A DE2441447C3 (en) 1974-08-29 1974-08-29 Process for the adsorptive separation of gas mixtures containing at least nitrogen in addition to nitrogen

Publications (1)

Publication Number Publication Date
GB1480866A true GB1480866A (en) 1977-07-27

Family

ID=5924411

Family Applications (1)

Application Number Title Priority Date Filing Date
GB35833/75A Expired GB1480866A (en) 1974-08-29 1975-08-29 Process for obtaining nitrogen-rich gases from gases containing oxygen and nitrogen

Country Status (11)

Country Link
JP (1) JPS5150298A (en)
AU (1) AU503999B2 (en)
BE (1) BE831821A (en)
BR (1) BR7505509A (en)
CA (1) CA1084421A (en)
DE (1) DE2441447C3 (en)
FR (1) FR2283094A1 (en)
GB (1) GB1480866A (en)
IT (1) IT1040717B (en)
NL (1) NL181559C (en)
ZA (1) ZA755356B (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4256469A (en) * 1978-11-06 1981-03-17 Linde Aktiengesellschaft Repressurization technique for pressure swing adsorption
US4348213A (en) 1980-03-31 1982-09-07 Boc Limited Process for the separation of a gaseous mixture
US4415340A (en) * 1979-08-09 1983-11-15 Bergwerksverband Gmbh Adsorptive separation of gases
GB2152834A (en) * 1983-07-23 1985-08-14 Derek Edward Ward Producing nitrogen from air
US4576614A (en) * 1980-10-30 1986-03-18 The Boc Group, Inc. Process and apparatus for separation of a gaseous mixture

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2652486A1 (en) * 1976-11-18 1978-05-24 Bergwerksverband Gmbh METHOD FOR THE EXTRACTION OF NITROGEN-GASES FROM GASES CONTAINING N LOW 2 LESS THAN AT LEAST O LOW 2, E.g. AIR
DE2923325A1 (en) * 1979-06-08 1980-12-11 Linde Ag CYCLICAL ADSORPTION METHOD FOR DISASSEMBLING A GAS MIXTURE
JPS5745320A (en) * 1980-08-31 1982-03-15 Ishikawaken Method and equipment of production for concentration- adjustable oxygen-enriched air
DE3132572A1 (en) * 1981-08-18 1983-03-10 Linde Ag, 6200 Wiesbaden METHOD FOR THE ADSORPTIVE DISASSEMBLY OF A GAS MIXTURE
DE3137569A1 (en) * 1981-09-22 1983-04-21 Leybold-Heraeus GmbH, 5000 Köln METHOD AND DEVICE FOR PRODUCING HIGH PURITY NITROGEN
DE3146189A1 (en) * 1981-11-21 1983-05-26 Leybold-Heraeus GmbH, 5000 Köln METHOD FOR OPERATING A PRESSURE EXCHANGE SYSTEM AND PRESSURE EXCHANGE SYSTEM WORKING THIS METHOD
JPS607920A (en) * 1983-06-29 1985-01-16 Hitachi Ltd Separation of mixed gas and its apparatus
JP2634015B2 (en) * 1993-02-25 1997-07-23 東洋エンジニアリング株式会社 Pressure swing separator for ammonia separation and ammonia separation method
JP5902920B2 (en) 2011-11-10 2016-04-13 大陽日酸株式会社 Nitrogen gas production method, gas separation method and nitrogen gas production apparatus

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4256469A (en) * 1978-11-06 1981-03-17 Linde Aktiengesellschaft Repressurization technique for pressure swing adsorption
US4415340A (en) * 1979-08-09 1983-11-15 Bergwerksverband Gmbh Adsorptive separation of gases
US4348213A (en) 1980-03-31 1982-09-07 Boc Limited Process for the separation of a gaseous mixture
US4576614A (en) * 1980-10-30 1986-03-18 The Boc Group, Inc. Process and apparatus for separation of a gaseous mixture
GB2152834A (en) * 1983-07-23 1985-08-14 Derek Edward Ward Producing nitrogen from air
US4572723A (en) * 1983-07-23 1986-02-25 Bergwerksverband Gmbh Nitrogen generator process for the production of low volumes of high purity nitrogen from compressed air

Also Published As

Publication number Publication date
FR2283094A1 (en) 1976-03-26
JPS5417595B2 (en) 1979-06-30
CA1084421A (en) 1980-08-26
DE2441447B2 (en) 1979-09-06
JPS5150298A (en) 1976-05-01
FR2283094B1 (en) 1980-04-25
NL181559C (en) 1987-09-16
AU503999B2 (en) 1979-09-27
NL181559B (en) 1987-04-16
IT1040717B (en) 1979-12-20
BE831821A (en) 1976-01-28
ZA755356B (en) 1976-07-28
AU8436875A (en) 1977-03-03
BR7505509A (en) 1976-08-03
DE2441447C3 (en) 1980-05-22
NL7510234A (en) 1976-03-02
DE2441447A1 (en) 1976-03-18

Similar Documents

Publication Publication Date Title
GB1480866A (en) Process for obtaining nitrogen-rich gases from gases containing oxygen and nitrogen
IL49941A0 (en) Process for separating gas mixtures such as hydrogen containing carbon dioxide and nitrogen impurities,by adiabatic pressure swing adsorption
GB1449864A (en) Adsorption system
GB1456465A (en) Gas separation
ATE24171T1 (en) METHOD AND APPARATUS FOR THE PRODUCTION OF AMMONIA.
ES446370A1 (en) Fractionation of air by adsorption
ATE54425T1 (en) PRESSURE SWING ADSORPTION PROCESS.
FR2371381A2 (en) PROCESS FOR THE PREPARATION OF GAS RICH IN NITROGEN FROM GAS CONTAINING, IN ADDITION TO NITROGEN, AT LEAST OXYGEN, SUCH AS AIR
MY8300064A (en) Process and compositions for the removing of carbon dioxide from gas streams
ES447653A1 (en) Gas purification method and apparatus
GB1362567A (en) Production of hydrogen and of gaseous mixtures containing hydrogen
ES458562A1 (en) Gas separation
JPS5250979A (en) Method of condensing or liquefying a specific component
GB1357701A (en) Adsorption process for recovering nitrogen oxides
GB1356147A (en) Process for removing nitric oxide from gaseous mixtures
FR2366050A1 (en) PROCESS FOR SEPARATING A GAS MIXTURE
ES8406372A1 (en) Process for the separation and purification of hydrogen.
GB1471699A (en) Partially crosslinked silalactone polymers their preparation and their use
GB1207925A (en) Adsorption process
YU41449B (en) Process for the, separation of ammonia from gases in the production of hydrogen cyanide
GB1327475A (en) Adsorption
GB1166518A (en) Improvements in or relating to Gas Separation Processes
JPS5253787A (en) Adsorbent compoition
ES8703289A1 (en) Process and apparatus for the production of air enriched with oxygen by adsorption.
GB1452242A (en) Method for the oxygen enrichment of gases process and apparatus for the production of viscose

Legal Events

Date Code Title Description
PS Patent sealed
PE20 Patent expired after termination of 20 years

Effective date: 19950828