GB483494A - Improvements in a method of separating the constituents of a mixture of gases - Google Patents

Improvements in a method of separating the constituents of a mixture of gases

Info

Publication number
GB483494A
GB483494A GB28562/36A GB2856236A GB483494A GB 483494 A GB483494 A GB 483494A GB 28562/36 A GB28562/36 A GB 28562/36A GB 2856236 A GB2856236 A GB 2856236A GB 483494 A GB483494 A GB 483494A
Authority
GB
United Kingdom
Prior art keywords
nitrogen
oxygen
air
exchanger
exchangers
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
GB28562/36A
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
Priority to FR821576D priority Critical patent/FR821576A/en
Application filed by Individual filed Critical Individual
Priority to GB28562/36A priority patent/GB483494A/en
Publication of GB483494A publication Critical patent/GB483494A/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
    • F25J3/04624—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 integrated mass and heat exchange, so-called non-adiabatic rectification, e.g. dephlegmator, reflux exchanger
    • F25J3/0463—Simultaneously between rectifying and stripping sections, i.e. double dephlegmator
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D3/00—Distillation or related exchange processes in which liquids are contacted with gaseous media, e.g. stripping
    • B01D3/14—Fractional distillation or use of a fractionation or rectification column
    • B01D3/141—Fractional distillation or use of a fractionation or rectification column where at least one distillation column contains at least one dividing wall
    • 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
    • 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
    • F25J3/04866—Construction and layout of air fractionation equipments, e.g. valves, machines
    • F25J3/04896—Details of columns, e.g. internals, inlet/outlet devices
    • F25J3/04933—Partitioning walls or sheets
    • F25J3/04939—Vertical, e.g. dividing wall columns
    • 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
    • F25J2200/04—Processes or apparatus using separation by rectification in a dual pressure main column system

Landscapes

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

Abstract

483,494. Separating gases by liquefaction. TWOMEY, L. S. Oct. 20, 1936, No. 28562. [Class 8 (ii)] Air freed from dust and carbon dioxide is cooled by passage through exchangers A, B and passes to a rectifying column J, K; the separated products flow back through the exchangers, cooling the air. Between the exchangers the nitrogen, or in some cases the oxygen or the air, is regulably cooled by a bath C of liquefied ethylene to compensate for fluctua. tions in the condition of the incoming air ; the moisture deposited in exchanger A is drawn off through drains 14. The air enters the lower section K of the rectifier, in the base of which crude oxygen is deposited ; this oxygen is drawn off and cooled in a vessel H where it boils oxygen from the second stage of rectification, and in a vessel F where it vaporizes an auxiliary liquefied gas such as nitrogen which is forced by a compressor 98 in circuit through a water cooler 89, an exchanger 85, a second oxygen boiler G and the vessel F, and so back through the exchanger to the compressor. Nitrogen condenses in a condenser separating the two rectifier sections and collects in a trough 80. Additional nitrogen is formed by a compound refrigeration process involving circuits, e.g. of ammonia, ethylene and methane and added to the nitrogen in the trough before passing to an oxygen boiler I from which the revaporized nitrogen flows to an exchanger D and thence to a vaporizer E and so to the upper column. An internal or external argon column L may be provided.
GB28562/36A 1936-10-19 1936-10-20 Improvements in a method of separating the constituents of a mixture of gases Expired GB483494A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
FR821576D FR821576A (en) 1936-10-19 1936-10-19 Process for the separation of constituent elements of air
GB28562/36A GB483494A (en) 1936-10-19 1936-10-20 Improvements in a method of separating the constituents of a mixture of gases

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR821576T 1936-10-19
GB28562/36A GB483494A (en) 1936-10-19 1936-10-20 Improvements in a method of separating the constituents of a mixture of gases

Publications (1)

Publication Number Publication Date
GB483494A true GB483494A (en) 1938-04-20

Family

ID=10277581

Family Applications (1)

Application Number Title Priority Date Filing Date
GB28562/36A Expired GB483494A (en) 1936-10-19 1936-10-20 Improvements in a method of separating the constituents of a mixture of gases

Country Status (2)

Country Link
FR (1) FR821576A (en)
GB (1) GB483494A (en)

Also Published As

Publication number Publication date
FR821576A (en) 1937-12-08

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