JPS5326276A - Liquefying separation method of air - Google Patents

Liquefying separation method of air

Info

Publication number
JPS5326276A
JPS5326276A JP10053376A JP10053376A JPS5326276A JP S5326276 A JPS5326276 A JP S5326276A JP 10053376 A JP10053376 A JP 10053376A JP 10053376 A JP10053376 A JP 10053376A JP S5326276 A JPS5326276 A JP S5326276A
Authority
JP
Japan
Prior art keywords
air
separation method
low pressure
raw gas
liquefying separation
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.)
Pending
Application number
JP10053376A
Other languages
Japanese (ja)
Inventor
Norio Nakazato
Yukiyoshi Yoshimatsu
Norihide Saho
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.)
Hitachi Ltd
Original Assignee
Hitachi 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 Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP10053376A priority Critical patent/JPS5326276A/en
Publication of JPS5326276A publication Critical patent/JPS5326276A/en
Pending 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
    • F25J3/04636—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 hybrid air separation unit, e.g. combined process by cryogenic separation and non-cryogenic separation techniques
    • 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
    • F25J3/04424—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 without thermally coupled high and low pressure columns, i.e. a so-called split 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
    • 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
    • F25J2210/00—Processes characterised by the type or other details of the feed stream
    • F25J2210/50—Oxygen

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

PURPOSE:To liquefy and to separate the air at a low pressure, by feeding raw gas, raised the content of oxygen more than the oxygen concentration of air with pretreatment, into the duplex rectifying tower and using low pressure raw gas and also, decreasing the electric power consumption of compressor.
JP10053376A 1976-08-25 1976-08-25 Liquefying separation method of air Pending JPS5326276A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP10053376A JPS5326276A (en) 1976-08-25 1976-08-25 Liquefying separation method of air

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP10053376A JPS5326276A (en) 1976-08-25 1976-08-25 Liquefying separation method of air

Publications (1)

Publication Number Publication Date
JPS5326276A true JPS5326276A (en) 1978-03-10

Family

ID=14276587

Family Applications (1)

Application Number Title Priority Date Filing Date
JP10053376A Pending JPS5326276A (en) 1976-08-25 1976-08-25 Liquefying separation method of air

Country Status (1)

Country Link
JP (1) JPS5326276A (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5878494U (en) * 1981-11-20 1983-05-27 大阪瓦斯株式会社 air separation equipment
JPS58221373A (en) * 1982-06-18 1983-12-23 株式会社日立製作所 Method of sampling impure nitrogen
JPS5960488U (en) * 1982-10-14 1984-04-20 川崎製鉄株式会社 Air separation equipment with oxygen, argon enrichment equipment
JPS61217671A (en) * 1985-01-14 1986-09-27 ザ・ビ−オ−シ−・グル−プ・ピ−エルシ− Separation from gas mixture
JPS6391475A (en) * 1986-10-01 1988-04-22 ザ・ビーオーシー・グループ・インコーポレーテッド Simultaneous manufacture of argon and nitrogen
JP2004309119A (en) * 2003-03-26 2004-11-04 Air Water Inc Air separator

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5878494U (en) * 1981-11-20 1983-05-27 大阪瓦斯株式会社 air separation equipment
JPS6142071Y2 (en) * 1981-11-20 1986-11-29
JPS58221373A (en) * 1982-06-18 1983-12-23 株式会社日立製作所 Method of sampling impure nitrogen
JPH0145553B2 (en) * 1982-06-18 1989-10-04 Hitachi Ltd
JPS5960488U (en) * 1982-10-14 1984-04-20 川崎製鉄株式会社 Air separation equipment with oxygen, argon enrichment equipment
JPS61217671A (en) * 1985-01-14 1986-09-27 ザ・ビ−オ−シ−・グル−プ・ピ−エルシ− Separation from gas mixture
JPS6391475A (en) * 1986-10-01 1988-04-22 ザ・ビーオーシー・グループ・インコーポレーテッド Simultaneous manufacture of argon and nitrogen
JPH0310868B2 (en) * 1986-10-01 1991-02-14 Boc Group Inc
JP2004309119A (en) * 2003-03-26 2004-11-04 Air Water Inc Air separator

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