GB1182615A - Improvements in or relating to the Separation of Mixtures of Gases - Google Patents

Improvements in or relating to the Separation of Mixtures of Gases

Info

Publication number
GB1182615A
GB1182615A GB25441/67A GB2544167A GB1182615A GB 1182615 A GB1182615 A GB 1182615A GB 25441/67 A GB25441/67 A GB 25441/67A GB 2544167 A GB2544167 A GB 2544167A GB 1182615 A GB1182615 A GB 1182615A
Authority
GB
United Kingdom
Prior art keywords
exchanger
condensers
column
cooled
reboiler
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
GB25441/67A
Inventor
Roman Stoklosinski
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to GB25441/67A priority Critical patent/GB1182615A/en
Priority to US732670A priority patent/US3605423A/en
Priority to DE19681751450 priority patent/DE1751450A1/en
Priority to FR1570115D priority patent/FR1570115A/fr
Publication of GB1182615A publication Critical patent/GB1182615A/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
    • F25J3/04248—Generation of cold for compensating heat leaks or liquid production, e.g. by Joule-Thompson expansion
    • F25J3/04333—Generation of cold for compensating heat leaks or liquid production, e.g. by Joule-Thompson expansion using quasi-closed loop internal vapor compression refrigeration cycles, e.g. of intermediate or oxygen enriched (waste-)streams
    • F25J3/04351—Generation of cold for compensating heat leaks or liquid production, e.g. by Joule-Thompson expansion using quasi-closed loop internal vapor compression refrigeration cycles, e.g. of intermediate or oxygen enriched (waste-)streams of nitrogen
    • 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
    • F25J3/044—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 single pressure main column system only
    • 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
    • F25J3/04763—Start-up or control of the process; Details of the apparatus used
    • F25J3/04769—Operation, control and regulation of the process; Instrumentation within the process
    • F25J3/04854—Safety aspects of operation
    • F25J3/0486—Safety aspects of operation of vaporisers for oxygen enriched liquids, e.g. purging of liquids
    • 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
    • F25J2200/00—Processes or apparatus using separation by rectification
    • F25J2200/76—Refluxing the column with condensed overhead gas being cycled in a quasi-closed loop refrigeration cycle
    • 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
    • F25J2270/00—Refrigeration techniques used
    • F25J2270/02—Internal refrigeration with liquid vaporising loop
    • 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
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S62/00—Refrigeration
    • Y10S62/90—Triple column

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

1,182,615. Gas mixture separation process. R. STOKLOSINSKI. 1 June, 1967, No. 25441/67. Heading F4P. A binary gas mixture e.g., air rectification column 24 has at least two superposed reboilers 26, 27 heated respectively by a portion of the air feed and by at least a portion of nitrogen effluent fraction, and the column also has at least two superposed condensers 28, 29 located above the highest reboiler 27 and at least one of which condensers is cooled by at least a portion of the liquid oxygen bottoms fraction. In operation feed air at just above atmospheric pressure having been freed of water vapour and carbon dioxide at 20 and cooled to dew point in an exchanger 22 is fed to about the mid-point of the column 24. Nitrogen effluent having been warmed in exchanger 22 is in part directed through purifiers 20 and in part to a compressor 30 by which it is forced through exchanger 22 and the reboiler 27 where it is liquefied after which it is expanded at a valve 34 and returned to the column as reflux. Air for heating reboiler 26 is withdrawn from the feed stream at the warm end of exchanger 22, compressed at 32, cooled in exchanger 22 and after being liquefied in said reboiler 26 is expanded at 36 and fed to the column as reflux. As shown both condensers 28, 29 are cooled by liquid oxygen bottoms expanded at valves 42, 40 and the resulting oxygen vapour having been warmed in exchanger 22 is compressed at 31 and discharged as product. Build-up of impurities in the boiling oxygen in condensers .'28, 29 is avoided by withdrawing a portion thereof : by a pump 44, purifying at 46 and returning -to the condensers.
GB25441/67A 1967-06-01 1967-06-01 Improvements in or relating to the Separation of Mixtures of Gases Expired GB1182615A (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
GB25441/67A GB1182615A (en) 1967-06-01 1967-06-01 Improvements in or relating to the Separation of Mixtures of Gases
US732670A US3605423A (en) 1967-06-01 1968-05-28 Air rectification with multiple reboilers and condensers
DE19681751450 DE1751450A1 (en) 1967-06-01 1968-05-31 Process for fractional distillation, especially of air
FR1570115D FR1570115A (en) 1967-06-01 1968-05-31

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB25441/67A GB1182615A (en) 1967-06-01 1967-06-01 Improvements in or relating to the Separation of Mixtures of Gases

Publications (1)

Publication Number Publication Date
GB1182615A true GB1182615A (en) 1970-02-25

Family

ID=10227721

Family Applications (1)

Application Number Title Priority Date Filing Date
GB25441/67A Expired GB1182615A (en) 1967-06-01 1967-06-01 Improvements in or relating to the Separation of Mixtures of Gases

Country Status (4)

Country Link
US (1) US3605423A (en)
DE (1) DE1751450A1 (en)
FR (1) FR1570115A (en)
GB (1) GB1182615A (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1310514A (en) * 1969-07-02 1973-03-21 Bligh B R Process of contunuous distillation
IT1034544B (en) * 1975-03-26 1979-10-10 Siad PROCEDURE AND PLANT FOR AIR FRACTION WITH A SIMPLE GRINDING COLUMN
DE2535488A1 (en) * 1975-08-08 1977-02-10 Linde Ag METHOD AND DEVICE FOR LOW TEMPERATURE DISPOSAL OF AIR
US5263327A (en) * 1992-03-26 1993-11-23 Praxair Technology, Inc. High recovery cryogenic rectification system
US5656065A (en) * 1995-10-04 1997-08-12 Air Products And Chemicals, Inc. Multibed pressure swing adsorption apparatus and method for the operation thereof
US5682764A (en) * 1996-10-25 1997-11-04 Air Products And Chemicals, Inc. Three column cryogenic cycle for the production of impure oxygen and pure nitrogen
US6568209B1 (en) * 2002-09-06 2003-05-27 Praxair Technology, Inc. Cryogenic air separation system with dual section main heat exchanger

Also Published As

Publication number Publication date
US3605423A (en) 1971-09-20
DE1751450A1 (en) 1971-07-08
FR1570115A (en) 1969-06-06

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PLNP Patent lapsed through nonpayment of renewal fees