[go: up one dir, main page]

GB1416163A - Air separation - Google Patents

Air separation

Info

Publication number
GB1416163A
GB1416163A GB91272A GB91272A GB1416163A GB 1416163 A GB1416163 A GB 1416163A GB 91272 A GB91272 A GB 91272A GB 91272 A GB91272 A GB 91272A GB 1416163 A GB1416163 A GB 1416163A
Authority
GB
United Kingdom
Prior art keywords
air
stream
oxygen
enriched
withdrawn
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
GB91272A
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.)
BOC Group Ltd
Original Assignee
BOC International Ltd
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 BOC International Ltd filed Critical BOC International Ltd
Priority to GB91272A priority Critical patent/GB1416163A/en
Priority to AU50822/73A priority patent/AU476904B2/en
Priority to GB1054673A priority patent/GB1457882A/en
Publication of GB1416163A publication Critical patent/GB1416163A/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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
    • F25J3/00—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification
    • F25J3/02—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream
    • F25J3/04—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream for air
    • F25J3/04248—Generation of cold for compensating heat leaks or liquid production, e.g. by Joule-Thompson expansion
    • F25J3/04278—Generation of cold for compensating heat leaks or liquid production, e.g. by Joule-Thompson expansion using external refrigeration units, e.g. closed mechanical or regenerative refrigeration units
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
    • F25J3/00—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification
    • F25J3/02—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream
    • F25J3/04—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream for air
    • F25J3/04248—Generation of cold for compensating heat leaks or liquid production, e.g. by Joule-Thompson expansion
    • F25J3/04284—Generation of cold for compensating heat leaks or liquid production, e.g. by Joule-Thompson expansion using internal refrigeration by open-loop gas work expansion, e.g. of intermediate or oxygen enriched (waste-)streams
    • F25J3/0429—Generation of cold for compensating heat leaks or liquid production, e.g. by Joule-Thompson expansion using internal refrigeration by open-loop gas work expansion, e.g. of intermediate or oxygen enriched (waste-)streams of feed air, e.g. used as waste or product air or expanded into an auxiliary column
    • F25J3/04296—Claude expansion, i.e. expanded into the main or high pressure column
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
    • F25J3/00—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification
    • F25J3/02—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream
    • F25J3/04—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream for air
    • F25J3/04636—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream for air using a hybrid air separation unit, e.g. combined process by cryogenic separation and non-cryogenic separation techniques
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
    • F25J3/00—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification
    • F25J3/02—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream
    • F25J3/04—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream for air
    • F25J3/04642—Recovering noble gases from air
    • F25J3/04648—Recovering noble gases from air argon
    • F25J3/04654—Producing crude argon in a crude argon column
    • F25J3/0466—Producing crude argon in a crude argon column as a parallel working rectification column or auxiliary column system in a single pressure main column system
    • 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
    • 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
    • B01D2258/00—Sources of waste gases
    • B01D2258/02—Other waste gases
    • B01D2258/025—Other waste gases from metallurgy plants
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
    • F25J2200/00—Processes or apparatus using separation by rectification
    • F25J2200/02—Processes or apparatus using separation by rectification in a single pressure main column system
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
    • F25J2200/00—Processes or apparatus using separation by rectification
    • F25J2200/50—Processes or apparatus using separation by rectification using multiple (re-)boiler-condensers at different heights of the column
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
    • F25J2205/00—Processes or apparatus using other separation and/or other processing means
    • F25J2205/60—Processes or apparatus using other separation and/or other processing means using adsorption on solid adsorbents, e.g. by temperature-swing adsorption [TSA] at the hot or cold end
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
    • F25J2205/00—Processes or apparatus using other separation and/or other processing means
    • F25J2205/80—Processes or apparatus using other separation and/or other processing means using membrane, i.e. including a permeation step
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
    • F25J2250/00—Details related to the use of reboiler-condensers
    • F25J2250/20—Boiler-condenser with multiple exchanger cores in parallel or with multiple re-boiling or condensing streams

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Separation By Low-Temperature Treatments (AREA)
  • Oxygen, Ozone, And Oxides In General (AREA)
  • Separation Using Semi-Permeable Membranes (AREA)

Abstract

1416163 Air separation BOC INTERNATIONAL Ltd 5 Jan 1973 [7 Jan 1972] 912/72 Heading F4P In an air separation process, the air is subjected to oxygen enrichment to at least 30% oxygen, preferably 70-85%, and then cooled and rectified. Feed air is passed through a filter 10, compressor 12 and after-cooler 14, and fed to an adsorption unit 16 having purging and evacuating means, where nitrogen water vapour and carbon dioxide are alternately absorbed and rejected, the oxygen-enriched stream then being passed through a heat exchanger 24 where the stream is divided into two streams prior to introduction to a single stage rectification column, one stream 26 being work-expanded at 28. Nitrogen withdrawn through line 34 cools heat exchanger 24 and unit 16, and oxygen is withdrawn at 38. A further, argon-rich stream may be withdrawn at 36. The column 32 has a reflux and reboil cycle 40. A two-stage column may be used, the enriched air being compressed to about 15 bars, a portion being employed as reboil in the lower stage. The air may be enriched by membrane separation or diffusion, and the enriched air may be added to a further stream of compressed air before rectification.
GB91272A 1972-01-07 1972-01-07 Air separation Expired GB1416163A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
GB91272A GB1416163A (en) 1972-01-07 1972-01-07 Air separation
AU50822/73A AU476904B2 (en) 1972-01-07 1973-01-08 Air separation
GB1054673A GB1457882A (en) 1972-01-07 1973-03-05 Air separation

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB91272A GB1416163A (en) 1972-01-07 1972-01-07 Air separation

Publications (1)

Publication Number Publication Date
GB1416163A true GB1416163A (en) 1975-12-03

Family

ID=9712699

Family Applications (1)

Application Number Title Priority Date Filing Date
GB91272A Expired GB1416163A (en) 1972-01-07 1972-01-07 Air separation

Country Status (2)

Country Link
AU (1) AU476904B2 (en)
GB (1) GB1416163A (en)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5666828A (en) * 1996-06-26 1997-09-16 Praxair Technology, Inc. Cryogenic hybrid system for producing low purity oxygen and high purity oxygen
EP0852325A2 (en) * 1997-01-07 1998-07-08 Praxair Technology, Inc. Cryogenic hybrid system for producing low purity oxygen and high purity nitrogen
WO1998058219A1 (en) * 1997-06-16 1998-12-23 Sequal Technologies, Inc. Methods and apparatus to generate liquid ambulatory oxygen from an oxygen concentrator
EP1278036A1 (en) * 2001-07-18 2003-01-22 Air Products And Chemicals, Inc. Cryogenic hydrogen and carbon monoxide production using an expander fed by the permeat of a membrane separation unit
US7213400B2 (en) 2004-10-26 2007-05-08 Respironics In-X, Inc. Liquefying and storing a gas
US7913497B2 (en) 2004-07-01 2011-03-29 Respironics, Inc. Desiccant cartridge
CN105758120A (en) * 2014-12-19 2016-07-13 常熟市永安工业气体制造有限公司 Pretreatment device for air separation system
CN112452095A (en) * 2020-11-10 2021-03-09 中国石油化工股份有限公司 Improved tail gas rectification method

Cited By (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5666828A (en) * 1996-06-26 1997-09-16 Praxair Technology, Inc. Cryogenic hybrid system for producing low purity oxygen and high purity oxygen
EP0821211A2 (en) * 1996-06-26 1998-01-28 Praxair Technology, Inc. Cryogenic hybrid system for producing low purity oxygen and high purity oxygen
EP0821211A3 (en) * 1996-06-26 1998-03-11 Praxair Technology, Inc. Cryogenic hybrid system for producing low purity oxygen and high purity oxygen
EP0852325A2 (en) * 1997-01-07 1998-07-08 Praxair Technology, Inc. Cryogenic hybrid system for producing low purity oxygen and high purity nitrogen
EP0852325A3 (en) * 1997-01-07 1998-12-16 Praxair Technology, Inc. Cryogenic hybrid system for producing low purity oxygen and high purity nitrogen
WO1998058219A1 (en) * 1997-06-16 1998-12-23 Sequal Technologies, Inc. Methods and apparatus to generate liquid ambulatory oxygen from an oxygen concentrator
US5979440A (en) * 1997-06-16 1999-11-09 Sequal Technologies, Inc. Methods and apparatus to generate liquid ambulatory oxygen from an oxygen concentrator
US6568206B2 (en) 2001-07-18 2003-05-27 Air Products And Chemicals, Inc. Cryogenic hydrogen and carbon monoxide production with membrane permeate expander
EP1278036A1 (en) * 2001-07-18 2003-01-22 Air Products And Chemicals, Inc. Cryogenic hydrogen and carbon monoxide production using an expander fed by the permeat of a membrane separation unit
US7913497B2 (en) 2004-07-01 2011-03-29 Respironics, Inc. Desiccant cartridge
US7213400B2 (en) 2004-10-26 2007-05-08 Respironics In-X, Inc. Liquefying and storing a gas
US7318327B2 (en) 2004-10-26 2008-01-15 Respironics In-X, Inc. Liquefying and storing a gas
US7555916B2 (en) 2004-10-26 2009-07-07 Respironics In-X, Inc. Liquefying and storing a gas
CN105758120A (en) * 2014-12-19 2016-07-13 常熟市永安工业气体制造有限公司 Pretreatment device for air separation system
CN112452095A (en) * 2020-11-10 2021-03-09 中国石油化工股份有限公司 Improved tail gas rectification method
CN112452095B (en) * 2020-11-10 2022-11-08 中国石油化工股份有限公司 Improved tail gas rectification method

Also Published As

Publication number Publication date
AU476904B2 (en) 1976-10-07
AU5082273A (en) 1974-07-11

Similar Documents

Publication Publication Date Title
ZA905571B (en) Process and apparatus for producing nitrogen from air
GB1516478A (en) Production of oxygen by the two-stage low-temperature rectification of air
ATE54425T1 (en) PRESSURE SWING ADSORPTION PROCESS.
ZA862817B (en) Ozone-producing process and apparatus
DE69009127D1 (en) Production of pure carbon dioxide.
US5080703A (en) Air separation
GB1325166A (en) Air rectification process for the production of gaseous or liquid nitrogen
AU1573388A (en) Companded total condensation reboil cryogenic air separation
KR0141438B1 (en) Cryogenic air separation process producing elevated pressure nitrogen by pumped liquid nitrogen
JPH02122809A (en) Simultaneously manufacturing process of argon and nitrogen
GB1416163A (en) Air separation
GB1069866A (en) Production of ultrahigh purity oxygen
GB2011272A (en) Air separation by adsorption
ES2032107T3 (en) AIR SEPARATION.
US5463869A (en) Integrated adsorption/cryogenic distillation process for the separation of an air feed
GB1511976A (en) Separation of low-boiling gas mixtures
GB1457882A (en) Air separation
GB1166518A (en) Improvements in or relating to Gas Separation Processes
FR2250971A1 (en) Atmospheric air fractionating process - has separate condensation-vaporisation zone receiving oxygen enriched liquid
EP0714005A2 (en) Air separation
GB974639A (en) Separation of air
GB1419857A (en) Production of pure nitrogen
KR980003439A (en) Method for Producing Low Purity Oxygen and High Purity Oxygen
GB1150952A (en) The production of Oxygen-Enriched Air
SU121804A1 (en) Method of air separation in low pressure installations with a turbo expander

Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee