GB1026282A - Improvements in and relating to gas mixture fractionating systems - Google Patents

Improvements in and relating to gas mixture fractionating systems

Info

Publication number
GB1026282A
GB1026282A GB27527/63A GB2752763A GB1026282A GB 1026282 A GB1026282 A GB 1026282A GB 27527/63 A GB27527/63 A GB 27527/63A GB 2752763 A GB2752763 A GB 2752763A GB 1026282 A GB1026282 A GB 1026282A
Authority
GB
United Kingdom
Prior art keywords
nitrogen
oxygen
withdrawn
gas
column
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
GB27527/63A
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.)
Werkspoor NV
Original Assignee
Werkspoor NV
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 Werkspoor NV filed Critical Werkspoor NV
Publication of GB1026282A publication Critical patent/GB1026282A/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
    • F25J3/04151—Purification and (pre-)cooling of the feed air; recuperative heat-exchange with product streams
    • F25J3/04187—Cooling of the purified feed air by recuperative heat-exchange; Heat-exchange with product streams
    • F25J3/04218—Parallel arrangement of the main heat exchange line in cores having different functions, e.g. in low pressure and high pressure cores
    • F25J3/04224—Cores associated with a liquefaction or 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
    • 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
    • F25J3/04763—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
    • F25J3/04787—Heat exchange, e.g. main heat exchange line; Subcooler, external reboiler-condenser
    • 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
    • F25J2205/24—Processes or apparatus using other separation and/or other processing means using regenerators, cold accumulators or reversible heat exchangers
    • 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
    • F25J2270/90—External refrigeration, e.g. conventional closed-loop mechanical refrigeration unit using Freon or NH3, unspecified external refrigeration

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

1,026,282. Cold separation of gas mixtures. WERKSPOOR N.V. July 11, 1963 [July 11, 1962], No. 27527/63. Heading F4P. In a process for separating a gas mixture, e.g. air, into at least two components, e.g. oxygen and nitrogen, by rectification in a column 1, Fig. 1 (not shown), supplied with cold by at least one cold gas refrigerator 2, 3 of reversed hot gas engine type and wherein the separated components are withdrawn from the column in the gaseous phase and a portion of each is passed through a heat exchanger 5 having an incoming feed air passage 6 means is provided whereby at least one of the separated components is withdrawn in both the gaseous and liquid phase. A portion of the feed air is passed through an optional conventional refrigerator 27, a coil 20 immersed in a chamber 11 containing liquid nitrogen resulting from condensation in the cold gas refrigerator 13 of that portion of nitrogen gas leaving the head of column 1 and not traversing the exchanger 5. Product liquid nitrogen is withdrawn through a duct 14, product gaseous nitrogen through a duct 9 and product gaseous oxygen through a duet 17. Oxygen in the liquid phase is obtained by withdrawing a portion of the oxygen gas from a point 33, Fig. 5 (not shown), on the upstream end of exchanger 5 and condensing it in a chamber 36 cooled by liquid nitrogen in adjacent chamber 11 and from which product liquid oxygen is withdrawn through a duct 38. A portion of condensed nitrogen may be withdrawn from chamber 11, Fig. 6 (not shown), through a duct 31 leading to the head of column 1 and the cold gas refrigerator 2 is dispensed with. In a modification, the exchanger 5 and chamber 11 are duplicated; switching valves being provided. In all constructions division of incoming feed air is effected by a valve 18 controlled by a temperature-sensitive element 26 within the exchanger 5. Flow of effluent nitrogen and oxygen issuing from the column is maintained constant by devices 23, 24.
GB27527/63A 1962-07-11 1963-07-11 Improvements in and relating to gas mixture fractionating systems Expired GB1026282A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL280782 1962-07-11

Publications (1)

Publication Number Publication Date
GB1026282A true GB1026282A (en) 1966-04-14

Family

ID=19753967

Family Applications (1)

Application Number Title Priority Date Filing Date
GB27527/63A Expired GB1026282A (en) 1962-07-11 1963-07-11 Improvements in and relating to gas mixture fractionating systems

Country Status (7)

Country Link
AT (1) AT249647B (en)
BE (1) BE634861A (en)
CH (1) CH434322A (en)
DE (1) DE1242650B (en)
FR (1) FR1363620A (en)
GB (1) GB1026282A (en)
NL (1) NL280782A (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113405316B (en) * 2021-06-01 2022-08-26 米菁 Main cooling method for realizing rapid cooling of air separation equipment

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE516872A (en) * 1952-01-12
US2873583A (en) * 1954-05-04 1959-02-17 Union Carbide Corp Dual pressure cycle for air separation
NL113690C (en) * 1959-03-17 1967-06-15

Also Published As

Publication number Publication date
CH434322A (en) 1967-04-30
AT249647B (en) 1966-09-26
BE634861A (en)
NL280782A (en) 1900-01-01
FR1363620A (en) 1964-06-12
DE1242650B (en) 1967-06-22

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