GB919118A - Fractionating column and tray unit therefor - Google Patents

Fractionating column and tray unit therefor

Info

Publication number
GB919118A
GB919118A GB17576/60A GB1757660A GB919118A GB 919118 A GB919118 A GB 919118A GB 17576/60 A GB17576/60 A GB 17576/60A GB 1757660 A GB1757660 A GB 1757660A GB 919118 A GB919118 A GB 919118A
Authority
GB
United Kingdom
Prior art keywords
column
tray
plate
fractionating
oxygen
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
GB17576/60A
Inventor
Basil Reginald Brown
John Francis Head
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 GB17576/60A priority Critical patent/GB919118A/en
Priority to FR861991A priority patent/FR1289869A/en
Publication of GB919118A publication Critical patent/GB919118A/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
    • 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
    • B01D3/16—Fractionating columns in which vapour bubbles through liquid
    • B01D3/18—Fractionating columns in which vapour bubbles through liquid with horizontal bubble plates
    • 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
    • F25J5/002—Arrangements of cold exchangers or cold accumulators in separation or liquefaction plants for continuously recuperating cold, i.e. in a so-called recuperative heat exchanger
    • F25J5/007—Arrangements of cold exchangers or cold accumulators in separation or liquefaction plants for continuously recuperating cold, i.e. in a so-called recuperative heat exchanger combined with mass exchange, i.e. in a so-called dephlegmator
    • 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
    • F25J2200/90—Details relating to column internals, e.g. structured packing, gas or liquid distribution

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)
  • Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)

Abstract

919,118. Fractionating columns. BRITISH OXYGEN CO. Ltd. May 18, 1961 [May 18, 1960], No. 17576/60. Class 55 (2). A fractionating column incorporates a tray unit comprising a plate of unperforated material having a flat upper surface and a plurality of dependent fins on the lower surface thereof, each said fin extending across the plate in a plane generally transverse to the direction of vapour flow over the plate when in use. The fins may be rectangular in shape, and may be normal or inclined to the plate. A series of the tray units may be mounted within a casing such that the upper surface of each tray is spaced from the lower surface of the next tray, the tray units being staggered so that a gap is left for fluid flow between the end of each unit and the casing, as in Fig. 2. Cross-flow of liquid over the plates may be promoted by placing slots along one edge of each tray unit in the direction of fluid flow, adjacent units having the slots on opposite sides. Such a construction may be employed in a condenserevaporator for producing liquid oxygen enriched air, as illustrated in Fig. 1, in which saturated air at elevated pressure is fed at 14 into column 10 which acts as a fractionating condenser. Nitrogen leaves the column at 15 and a liquid enriched in oxygen collects at the bottom of the column 10 and is fed through an expansion valve 16 to the top of the evaporator 11, in which it passes downwardly, being warmed and evaporated by heat exchange through the dividing wall 13, and finally leaves the base of the column as vapour at 17.
GB17576/60A 1960-05-18 1960-05-18 Fractionating column and tray unit therefor Expired GB919118A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
GB17576/60A GB919118A (en) 1960-05-18 1960-05-18 Fractionating column and tray unit therefor
FR861991A FR1289869A (en) 1960-05-18 1961-05-16 Fractionation column and tray for such a column

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB17576/60A GB919118A (en) 1960-05-18 1960-05-18 Fractionating column and tray unit therefor

Publications (1)

Publication Number Publication Date
GB919118A true GB919118A (en) 1963-02-20

Family

ID=10097608

Family Applications (1)

Application Number Title Priority Date Filing Date
GB17576/60A Expired GB919118A (en) 1960-05-18 1960-05-18 Fractionating column and tray unit therefor

Country Status (1)

Country Link
GB (1) GB919118A (en)

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