GB1165274A - Cold Separation of Binary Gas Mixtures - Google Patents

Cold Separation of Binary Gas Mixtures

Info

Publication number
GB1165274A
GB1165274A GB33495/67A GB3349567A GB1165274A GB 1165274 A GB1165274 A GB 1165274A GB 33495/67 A GB33495/67 A GB 33495/67A GB 3349567 A GB3349567 A GB 3349567A GB 1165274 A GB1165274 A GB 1165274A
Authority
GB
United Kingdom
Prior art keywords
column
nitrogen
cooled
line
liquid
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
GB33495/67A
Inventor
Emil Cimler
Raymond Hippeli
Edward Harold Van Baush
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.)
Hydrocarbon Research Inc
Original Assignee
Hydrocarbon Research Inc
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 US365279A priority Critical patent/US3340697A/en
Application filed by Hydrocarbon Research Inc filed Critical Hydrocarbon Research Inc
Priority to GB33495/67A priority patent/GB1165274A/en
Publication of GB1165274A publication Critical patent/GB1165274A/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
    • F25J3/04248—Generation of cold for compensating heat leaks or liquid production, e.g. by Joule-Thompson expansion
    • F25J3/04284—Generation of cold for compensating heat leaks or liquid production, e.g. by Joule-Thompson expansion using internal refrigeration by open-loop gas work expansion, e.g. of intermediate or oxygen enriched (waste-)streams
    • F25J3/04309—Generation of cold for compensating heat leaks or liquid production, e.g. by Joule-Thompson expansion using internal refrigeration by open-loop gas work expansion, e.g. of intermediate or oxygen enriched (waste-)streams of nitrogen
    • 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
    • F25J3/0423—Subcooling of liquid process streams
    • 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
    • F25J3/04763—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
    • F25J3/04812—Different modes, i.e. "runs" of operation
    • 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
    • F25J3/04854—Safety aspects of operation
    • 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
    • F25J2200/50—Processes or apparatus using separation by rectification using multiple (re-)boiler-condensers at different heights of the column
    • F25J2200/52—Processes or apparatus using separation by rectification using multiple (re-)boiler-condensers at different heights of the column in the high pressure column of a double 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
    • 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
    • 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
    • F25J2245/00—Processes or apparatus involving steps for recycling of process streams
    • F25J2245/42—Processes or apparatus involving steps for recycling of process streams the recycled stream being nitrogen

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

1,165,274. Cold separation of air. HYDROCARBON RESEARCH, Inc. 20 July, 1967, No. 33495/67. Heading F4P. In a two-stage binary gas mixture, e.g. air, separation process wherein oxygen-rich liquid is withdrawn at 40, 40b from the base of a high pressure column 30 and expanded in a valve 50 into a low pressure column 54 from which waste nitrogen and product liquid oxygen are withdrawn at 66, 68, crude high pressure gaseous nitrogen is withdrawn from column 30 through a line 32, is expanded at 34 and the so-cooled nitrogen is passed in heat exchange at 36 with a portion of the oxygenrich liquid bottoms from column 30. Exchanger 36 may serve to vaporize said liquid bottoms which pass through open valves 73, 71 back to column 30; valves 72, 74 being closed. Alternatively exchanger 36 may subcool the liquid bottoms which pass through open valves 72, 74 to a line 46a leading to expansion valve 50; valves 71, 73 being closed. The temperature of the nitrogen feed to the expander 34 is adjusted by a flow-dividing valve 75 and by valves 76, 77 which determine the nitrogen flow through an exchanger 42a cooled by waste nitrogen in line 66. In operation feed air from a compressor 14 is cooled in reversible heat exchangers 22, 24 in counterflow with product gaseous nitrogen discharged by expander 34 through lines 38, 38a and in counterflow with product gaseous oxygen withdrawn from column 54 through lines 62, 62a and the so-cooled feed air is delivered through a line 28 to column 30. That portion of oxygen-rich bottoms from column 30 not passed through exchangers 36 is cooled in parallel exchangers 42, 44 and is passed through a line 46, acetylene absorbers 48, expansion valve 50 and a heat exchanger 52 where it sub-cools liquid nitrogen prior to expansion of the latter in a valve 60.
GB33495/67A 1964-05-06 1967-07-20 Cold Separation of Binary Gas Mixtures Expired GB1165274A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
US365279A US3340697A (en) 1964-05-06 1964-05-06 Heat exchange of crude oxygen and expanded high pressure nitrogen
GB33495/67A GB1165274A (en) 1964-05-06 1967-07-20 Cold Separation of Binary Gas Mixtures

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US365279A US3340697A (en) 1964-05-06 1964-05-06 Heat exchange of crude oxygen and expanded high pressure nitrogen
GB33495/67A GB1165274A (en) 1964-05-06 1967-07-20 Cold Separation of Binary Gas Mixtures

Publications (1)

Publication Number Publication Date
GB1165274A true GB1165274A (en) 1969-09-24

Family

ID=47108310

Family Applications (1)

Application Number Title Priority Date Filing Date
GB33495/67A Expired GB1165274A (en) 1964-05-06 1967-07-20 Cold Separation of Binary Gas Mixtures

Country Status (2)

Country Link
US (1) US3340697A (en)
GB (1) GB1165274A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3018476A1 (en) * 1979-05-16 1980-11-20 Hitachi Ltd METHOD FOR RECOVERING NITROGEN IN A LOW-PRESSURE AIR SEPARATOR

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1180904A (en) * 1966-06-01 1970-02-11 British Oxygen Co Ltd Air Separation Process.
FR2064440B1 (en) * 1969-10-20 1973-11-23 Kobe Steel Ltd
JPS4940071B1 (en) * 1970-01-09 1974-10-30
IL36741A (en) * 1971-04-30 1974-11-29 Zakon T Method for the separation of gaseous mixtures with recuperation of mechanical energy and apparatus for carrying out this method
JPS55150472A (en) * 1979-05-09 1980-11-22 Hitachi Ltd Full low pressure type air separator
US4407135A (en) * 1981-12-09 1983-10-04 Union Carbide Corporation Air separation process with turbine exhaust desuperheat
US4416677A (en) * 1982-05-25 1983-11-22 Union Carbide Corporation Split shelf vapor air separation process

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL31736C (en) * 1929-04-19
US2715323A (en) * 1948-09-11 1955-08-16 Hydrocarbon Research Inc Production of oxygen by liquefaction and rectification of air
US2537046A (en) * 1949-02-24 1951-01-09 Hydrocarbon Research Inc Process for producing oxygen by the liquefaction and rectification of air
GB699429A (en) * 1951-08-27 1953-11-04 British Oxygen Co Ltd Improvements in or relating to the dispensing of gases
US2762208A (en) * 1952-12-19 1956-09-11 Air Reduction Separation of the constituents of air
BE539332A (en) * 1954-06-29 1900-01-01
US3039274A (en) * 1958-03-28 1962-06-19 Union Carbide Corp Process and apparatus for purifying and separating compressed gas mixtures
NL289327A (en) * 1962-02-27

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3018476A1 (en) * 1979-05-16 1980-11-20 Hitachi Ltd METHOD FOR RECOVERING NITROGEN IN A LOW-PRESSURE AIR SEPARATOR

Also Published As

Publication number Publication date
US3340697A (en) 1967-09-12

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
435 Patent endorsed 'licences of right' on the date specified (sect. 35/1949)
PCNP Patent ceased through non-payment of renewal fee