JPS54107494A - Separating argon and apparatus therefor - Google Patents

Separating argon and apparatus therefor

Info

Publication number
JPS54107494A
JPS54107494A JP1346278A JP1346278A JPS54107494A JP S54107494 A JPS54107494 A JP S54107494A JP 1346278 A JP1346278 A JP 1346278A JP 1346278 A JP1346278 A JP 1346278A JP S54107494 A JPS54107494 A JP S54107494A
Authority
JP
Japan
Prior art keywords
tower
impure
pipe
cooling agent
crude
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.)
Granted
Application number
JP1346278A
Other languages
Japanese (ja)
Other versions
JPS6044585B2 (en
Inventor
Norio Nakazato
Takeo Komuro
Yukiyoshi Yoshimatsu
Seiichi Yoshikawa
Michimasa Okabe
Yukiya Hiratsuka
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 JP53013462A priority Critical patent/JPS6044585B2/en
Publication of JPS54107494A publication Critical patent/JPS54107494A/en
Publication of JPS6044585B2 publication Critical patent/JPS6044585B2/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
    • F25J3/04763—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
    • F25J3/04793—Rectification, e.g. columns; Reboiler-condenser
    • F25J3/048—Argon recovery
    • 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
    • F25J3/04412—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 in a classical double column flowsheet, i.e. with thermal coupling by a main reboiler-condenser in the bottom of low pressure respectively top of high pressure 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
    • 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
    • F25J3/04672—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 having a top 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
    • F25J2205/02—Processes or apparatus using other separation and/or other processing means using simple phase separation in a vessel or drum
    • 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
    • F25J2280/00—Control of the process or apparatus
    • F25J2280/40—Control of freezing of components

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:High Ar recovery rate is provided by using impure N2 with low Ar content obtanined from rectifying lower tower, as cooling agent for crude AR condenser. CONSTITUTION:A portion of reflux liquid is taken out from the lower tower 3 of the combined type rectifying tower 1. The liquid is passed through the pipe d and the expansion valve 11, and used as cooling agent for the condenser 7 of the crude Ar tower 4. The liquid exchanges heat with the condenser 7 and gasifies, then returns to the top tower 2 through the pipe e. To prevent possible Ar solidification at the top of the tower 4, which might be caused by temperature decrease of cooling agent, the cooling agent outlet (pipe d) of the lower tower 3 should be installed below the outlet of the impure N2 (pipe b). Through this process, Ar concentration is decreased in impure N2 and Ar escape from impure N2 is reduced. Thus, high- content Ar gas is supplied from the lower portion of the top tower 2 to the tower 4, resulting in increased amount of crude Ar, that is, a high rate Ar recovery.
JP53013462A 1978-02-10 1978-02-10 Argon separation method and device Expired JPS6044585B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP53013462A JPS6044585B2 (en) 1978-02-10 1978-02-10 Argon separation method and device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP53013462A JPS6044585B2 (en) 1978-02-10 1978-02-10 Argon separation method and device

Publications (2)

Publication Number Publication Date
JPS54107494A true JPS54107494A (en) 1979-08-23
JPS6044585B2 JPS6044585B2 (en) 1985-10-04

Family

ID=11833802

Family Applications (1)

Application Number Title Priority Date Filing Date
JP53013462A Expired JPS6044585B2 (en) 1978-02-10 1978-02-10 Argon separation method and device

Country Status (1)

Country Link
JP (1) JPS6044585B2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58193080A (en) * 1981-12-08 1983-11-10 ユニオン・カ−バイド・コ−ポレ−シヨン Method and device for recovering argon from air separating plant only for oxygen

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3108867A (en) * 1960-08-10 1963-10-29 Air Reduction Separation of the elements of air
US3127260A (en) * 1964-03-31 Separation of air into nitrogen
JPS5152394A (en) * 1974-11-01 1976-05-08 Hitachi Ltd ARUGONSEISEIHO

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3127260A (en) * 1964-03-31 Separation of air into nitrogen
US3108867A (en) * 1960-08-10 1963-10-29 Air Reduction Separation of the elements of air
JPS5152394A (en) * 1974-11-01 1976-05-08 Hitachi Ltd ARUGONSEISEIHO

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58193080A (en) * 1981-12-08 1983-11-10 ユニオン・カ−バイド・コ−ポレ−シヨン Method and device for recovering argon from air separating plant only for oxygen

Also Published As

Publication number Publication date
JPS6044585B2 (en) 1985-10-04

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