GB1180904A - Air Separation Process. - Google Patents

Air Separation Process.

Info

Publication number
GB1180904A
GB1180904A GB24522/66A GB2452266A GB1180904A GB 1180904 A GB1180904 A GB 1180904A GB 24522/66 A GB24522/66 A GB 24522/66A GB 2452266 A GB2452266 A GB 2452266A GB 1180904 A GB1180904 A GB 1180904A
Authority
GB
United Kingdom
Prior art keywords
column
oxygen
withdrawn
expansion
valve
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
GB24522/66A
Inventor
Kenneth Cecil Smith
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
British Oxigen 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 British Oxigen Ltd filed Critical British Oxigen Ltd
Priority to GB24522/66A priority Critical patent/GB1180904A/en
Priority to US637271A priority patent/US3447331A/en
Priority to DE19671551565 priority patent/DE1551565A1/en
Priority to FR108585A priority patent/FR1525489A/en
Priority to AU23304/67A priority patent/AU425030B2/en
Publication of GB1180904A publication Critical patent/GB1180904A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • F25J3/04406—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 dual pressure main column system
    • F25J3/04412—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 dual pressure main column system in a classical double column flowsheet, i.e. with thermal coupling by a main reboiler-condenser in the bottom of low pressure respectively top of 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
    • F25J3/04248—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
    • F25J3/04309—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 nitrogen
    • F25J3/04315—Lowest pressure or impure nitrogen, so-called waste nitrogen expansion
    • 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
    • F25J3/04666—Producing crude argon in a crude argon column as a parallel working rectification column of the low pressure column in a dual pressure main column system
    • F25J3/04672—Producing crude argon in a crude argon column as a parallel working rectification column of the low pressure column in a dual pressure main column system having a top condenser
    • F25J3/04678—Producing crude argon in a crude argon column as a parallel working rectification column of the low pressure column in a dual pressure main column system having a top condenser cooled by oxygen enriched liquid from high pressure column bottoms
    • 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
    • F25J5/00—Arrangements of cold exchangers or cold accumulators in separation or liquefaction 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
    • F25J2200/20—Processes or apparatus using separation by rectification in an elevated pressure multiple column system wherein the lowest pressure column is at a pressure well above the minimum pressure needed to overcome pressure drop to reject the products to atmosphere
    • 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
    • F25J2250/02—Bath type boiler-condenser using thermo-siphon effect, e.g. with natural or forced circulation or pool boiling, i.e. core-in-kettle heat exchanger

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Separation By Low-Temperature Treatments (AREA)

Abstract

1,180,904. Cold separation of air. BRITISH OXYGEN CO. Ltd. 23 May, 1967 [1 June, 1966], No. 24522/66. Heading F4P. In a two-stage air rectification process comprising passing compressed air through reversing heat exchangers 6A, 6B in series traversed by reverse flowing high purity oxygen and waste nitrogen product streams 27, 29 withdrawn from the low-pressure column 10, feeding the socooled compressed air stream 20 into the highpressure column 12, withdrawing from the latter an oxygen-rich fraction 21 and expanding it at a valve 22 into column 10, withdrawing a relatively pure nitrogen fraction from column 12 and expanding at least a portion of it at a valve 26 into column 10, substantially the whole of the cold requirements of the process are met by work-expansion to one atmosphere of at least one of the product streams, e.g. waste nitrogen in a turbine 7 and prior to expansion all or part of the streams are heated, e.g. in a pass of heatexchanger 6B thereby effecting thermal balancing of the exchangers 6A, 6B. That portion of the relatively pure high-pressure nitrogen stream not expanded at 26 into column 10 is returned through the heat-exchangers 6B, 6A. A gaseous argon-rich fraction may be withdrawn from column 10 and fed through a line 31 to a side column 13 to which is also fed a portion of the oxygen-rich liquid stream 21 after expansion at a valve 32. The resulting argon-rich gas is withdrawn through a line 34.
GB24522/66A 1966-06-01 1966-06-01 Air Separation Process. Expired GB1180904A (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
GB24522/66A GB1180904A (en) 1966-06-01 1966-06-01 Air Separation Process.
US637271A US3447331A (en) 1966-06-01 1967-05-09 Air separation employing waste nitrogen reheated by incoming air in work expansion
DE19671551565 DE1551565A1 (en) 1966-06-01 1967-05-12 Method for separating air
FR108585A FR1525489A (en) 1966-06-01 1967-05-31 Process for separating air components
AU23304/67A AU425030B2 (en) 1966-06-01 1967-06-19 ajr SEPARATION PROCESS

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB24522/66A GB1180904A (en) 1966-06-01 1966-06-01 Air Separation Process.

Publications (1)

Publication Number Publication Date
GB1180904A true GB1180904A (en) 1970-02-11

Family

ID=10212976

Family Applications (1)

Application Number Title Priority Date Filing Date
GB24522/66A Expired GB1180904A (en) 1966-06-01 1966-06-01 Air Separation Process.

Country Status (4)

Country Link
US (1) US3447331A (en)
AU (1) AU425030B2 (en)
DE (1) DE1551565A1 (en)
GB (1) GB1180904A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2245961A (en) * 1990-07-12 1992-01-15 Boc Group Plc Air separation
US5081845A (en) * 1990-07-02 1992-01-21 Air Products And Chemicals, Inc. Integrated air separation plant - integrated gasification combined cycle power generator
AU649907B2 (en) * 1990-07-02 1994-06-02 Air Products And Chemicals Inc. Integrated air separation plant - integrated gasification combined cycle power generator
US5421166A (en) * 1992-02-18 1995-06-06 Air Products And Chemicals, Inc. Integrated air separation plant-integrated gasification combined cycle power generator

Families Citing this family (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2041701B1 (en) * 1969-05-05 1974-02-01 Air Liquide
US4439220A (en) * 1982-12-02 1984-03-27 Union Carbide Corporation Dual column high pressure nitrogen process
US4453957A (en) * 1982-12-02 1984-06-12 Union Carbide Corporation Double column multiple condenser-reboiler high pressure nitrogen process
US4817393A (en) * 1986-04-18 1989-04-04 Erickson Donald C Companded total condensation loxboil air distillation
FR2655137B1 (en) * 1989-11-28 1992-10-16 Air Liquide AIR DISTILLATION PROCESS AND INSTALLATION WITH ARGON PRODUCTION.
US5235816A (en) * 1991-10-10 1993-08-17 Praxair Technology, Inc. Cryogenic rectification system for producing high purity oxygen
US5197296A (en) * 1992-01-21 1993-03-30 Praxair Technology, Inc. Cryogenic rectification system for producing elevated pressure product
US5551257A (en) * 1992-10-01 1996-09-03 The Boc Group, Inc. Production of ultrahigh purity nitrogen
US5305611A (en) * 1992-10-23 1994-04-26 Praxair Technology, Inc. Cryogenic rectification system with thermally integrated argon column
US5666828A (en) * 1996-06-26 1997-09-16 Praxair Technology, Inc. Cryogenic hybrid system for producing low purity oxygen and high purity oxygen
US6269659B1 (en) 1998-04-21 2001-08-07 L'air Liquide, Societe Anonyme Pour L'etude Et L'exploitation Des Procedes Georges Claude Method and installation for air distillation with production of argon
FR2777641B1 (en) * 1998-04-21 2000-05-19 Air Liquide AIR DISTILLATION PROCESS AND INSTALLATION WITH ARGON PRODUCTION
FR2787562B1 (en) * 1998-12-22 2001-02-09 Air Liquide AIR DISTILLATION PROCESS AND INSTALLATION WITH ARGON PRODUCTION
US10612842B2 (en) 2016-11-18 2020-04-07 L'air Liquide Societe Anonyme Pour L'etude Et L'exploitation Des Procedes Georges Claude LNG integration with cryogenic unit
EP3625509A4 (en) 2017-05-16 2021-02-10 Ebert, Terrence, J. Apparatus and process for liquefying gases
CN112229142A (en) * 2020-10-29 2021-01-15 浙江智海化工设备工程有限公司 Low-coupling multi-strand composite expansion air separation flow device and method
CN118009603B (en) * 2024-04-09 2024-06-28 三立福新材料(福建)有限公司 Heat exchanger for cooling chemical materials

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2502250A (en) * 1946-12-13 1950-03-28 Air Reduction Recovery of oxygen from the atmosphere
FR1148546A (en) * 1956-09-27 1957-12-11 Air Liquide Process of separating air into its elements
GB976352A (en) * 1960-04-04 1964-11-25 Petrocarbon Dev Ltd Improvements in and relating to the production of oxygen
GB943669A (en) * 1961-11-03 1963-12-04 Petrocarbon Dev Ltd Separation of oxygen from air
DE1226616B (en) * 1961-11-29 1966-10-13 Linde Ag Process and device for the production of gaseous pressurized oxygen with simultaneous production of liquid decomposition products by low-temperature air separation
US3217502A (en) * 1963-04-22 1965-11-16 Hydrocarbon Research Inc Liquefaction of air
US3327488A (en) * 1964-04-17 1967-06-27 Air Prod & Chem Refrigeration system for gas liquefaction
US3340697A (en) * 1964-05-06 1967-09-12 Hydrocarbon Research Inc Heat exchange of crude oxygen and expanded high pressure nitrogen
US3375673A (en) * 1966-06-22 1968-04-02 Hydrocarbon Research Inc Air separation process employing work expansion of high and low pressure nitrogen

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5081845A (en) * 1990-07-02 1992-01-21 Air Products And Chemicals, Inc. Integrated air separation plant - integrated gasification combined cycle power generator
AU630564B2 (en) * 1990-07-02 1992-10-29 Air Products And Chemicals Inc. Integrated air separation plant
AU649907B2 (en) * 1990-07-02 1994-06-02 Air Products And Chemicals Inc. Integrated air separation plant - integrated gasification combined cycle power generator
GB2245961A (en) * 1990-07-12 1992-01-15 Boc Group Plc Air separation
GB2245961B (en) * 1990-07-12 1994-09-28 Boc Group Plc Air separation
US5421166A (en) * 1992-02-18 1995-06-06 Air Products And Chemicals, Inc. Integrated air separation plant-integrated gasification combined cycle power generator

Also Published As

Publication number Publication date
DE1551565A1 (en) 1969-10-16
AU2330467A (en) 1969-01-09
US3447331A (en) 1969-06-03
AU425030B2 (en) 1972-06-14

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