GB1392972A - Cooling fluids at low temperatures - Google Patents

Cooling fluids at low temperatures

Info

Publication number
GB1392972A
GB1392972A GB4419572A GB4419572A GB1392972A GB 1392972 A GB1392972 A GB 1392972A GB 4419572 A GB4419572 A GB 4419572A GB 4419572 A GB4419572 A GB 4419572A GB 1392972 A GB1392972 A GB 1392972A
Authority
GB
United Kingdom
Prior art keywords
exchanger
mixture
separator
cooling
line
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
GB4419572A
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.)
Petrocarbon Developments Ltd
Original Assignee
Petrocarbon Developments 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 Petrocarbon Developments Ltd filed Critical Petrocarbon Developments Ltd
Priority to GB4419572A priority Critical patent/GB1392972A/en
Priority to AU60531/73A priority patent/AU6053173A/en
Publication of GB1392972A publication Critical patent/GB1392972A/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
    • F25J1/00—Processes or apparatus for liquefying or solidifying gases or gaseous mixtures
    • F25J1/02—Processes or apparatus for liquefying or solidifying gases or gaseous mixtures requiring the use of refrigeration, e.g. of helium or hydrogen ; Details and kind of the refrigeration system used; Integration with other units or processes; Controlling aspects of the process
    • F25J1/0243—Start-up or control of the process; Details of the apparatus used; Details of the refrigerant compression system used
    • F25J1/0244—Operation; Control and regulation; Instrumentation
    • 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
    • F25J1/00—Processes or apparatus for liquefying or solidifying gases or gaseous mixtures
    • F25J1/0002—Processes or apparatus for liquefying or solidifying gases or gaseous mixtures characterised by the fluid to be liquefied
    • F25J1/0022—Hydrocarbons, e.g. natural gas
    • 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
    • F25J1/00—Processes or apparatus for liquefying or solidifying gases or gaseous mixtures
    • F25J1/003—Processes or apparatus for liquefying or solidifying gases or gaseous mixtures characterised by the kind of cold generation within the liquefaction unit for compensating heat leaks and liquid production
    • F25J1/0047—Processes or apparatus for liquefying or solidifying gases or gaseous mixtures characterised by the kind of cold generation within the liquefaction unit for compensating heat leaks and liquid production using an "external" refrigerant stream in a closed vapor compression cycle
    • F25J1/0052—Processes or apparatus for liquefying or solidifying gases or gaseous mixtures characterised by the kind of cold generation within the liquefaction unit for compensating heat leaks and liquid production using an "external" refrigerant stream in a closed vapor compression cycle by vaporising a liquid refrigerant stream
    • F25J1/0055—Processes or apparatus for liquefying or solidifying gases or gaseous mixtures characterised by the kind of cold generation within the liquefaction unit for compensating heat leaks and liquid production using an "external" refrigerant stream in a closed vapor compression cycle by vaporising a liquid refrigerant stream originating from an incorporated cascade
    • 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
    • F25J1/00—Processes or apparatus for liquefying or solidifying gases or gaseous mixtures
    • F25J1/02—Processes or apparatus for liquefying or solidifying gases or gaseous mixtures requiring the use of refrigeration, e.g. of helium or hydrogen ; Details and kind of the refrigeration system used; Integration with other units or processes; Controlling aspects of the process
    • F25J1/0211—Processes or apparatus for liquefying or solidifying gases or gaseous mixtures requiring the use of refrigeration, e.g. of helium or hydrogen ; Details and kind of the refrigeration system used; Integration with other units or processes; Controlling aspects of the process using a multi-component refrigerant [MCR] fluid in a closed vapor compression cycle
    • F25J1/0212—Processes or apparatus for liquefying or solidifying gases or gaseous mixtures requiring the use of refrigeration, e.g. of helium or hydrogen ; Details and kind of the refrigeration system used; Integration with other units or processes; Controlling aspects of the process using a multi-component refrigerant [MCR] fluid in a closed vapor compression cycle as a single flow MCR cycle

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)
  • General Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Separation By Low-Temperature Treatments (AREA)

Abstract

1392972 Liquefying or separating gases PETROCARBON DEVELOPMENTS Ltd 17 Sept 1973 [25 Sept 1972] 44195/72 Heading F4P A process for coding a feedstock, e.g. for liquefying natural gas in line 14, comprises cooling and partially condensing a compressed mixture of gases from line 22 in heat exchanger 2, dividing the partially condensed mixture into two portions, one of which leads to separator 4, and the other of which by-passes the separator 4, combining the uncondensed vapour from separator 4 with the by-pass portion before cooling the combination in heat exchanger 6 to effect further condensation and separating out a second liquid condensate in separator 8, and expanding at 26, 32 the first and second liquid condensates from separators 4, 8 to provide streams of refrigerating liquid which pass back through exchangers 6 and 10 respectively. Valve 42 controls the ratio between the divided portions of the mixture partially condensed in exchanger 2. Condensate in line 44 produced by cooling the feed mixture to line 22 to remove the heat of compression thereof is sub-cooled in exchanger 2 and then expanded at 40 to pass back through exchanger 2 as refrigerating fluid. The compressed gas mixture can be separated into two portions before entry to exchanger 2, the valve determining the ratio of the portions being controlled by means sensing the temperature of the gas being liquefied between exchangers 6 and 10 (Fig. 2, not shown). The feedstock may be the compressed mixture of gases, whereby the process becomes one of separating the mixture by successive cooling, and in this case the condensed portion from each separator can be expanded and fed back through the exchanger in which it was formed without the need for sub-cooling in the next coldest exchanger.
GB4419572A 1972-09-25 1972-09-25 Cooling fluids at low temperatures Expired GB1392972A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
GB4419572A GB1392972A (en) 1972-09-25 1972-09-25 Cooling fluids at low temperatures
AU60531/73A AU6053173A (en) 1972-09-25 1973-09-20 Cooling fluids at low temperatures

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB4419572A GB1392972A (en) 1972-09-25 1972-09-25 Cooling fluids at low temperatures

Publications (1)

Publication Number Publication Date
GB1392972A true GB1392972A (en) 1975-05-07

Family

ID=10432207

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4419572A Expired GB1392972A (en) 1972-09-25 1972-09-25 Cooling fluids at low temperatures

Country Status (2)

Country Link
AU (1) AU6053173A (en)
GB (1) GB1392972A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0299157A2 (en) * 1987-07-17 1989-01-18 The M. W. Kellogg Company Method for partial condensation of hydrocarbon gas mixtures
WO2006094675A1 (en) * 2005-03-04 2006-09-14 Linde Aktiengesellschaft Method for liquefaction of a stream rich in hydrocarbons

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0299157A2 (en) * 1987-07-17 1989-01-18 The M. W. Kellogg Company Method for partial condensation of hydrocarbon gas mixtures
EP0299157A3 (en) * 1987-07-17 1989-06-14 The M. W. Kellogg Company Method for partial condensation of hydrocarbon gas mixtures
WO2006094675A1 (en) * 2005-03-04 2006-09-14 Linde Aktiengesellschaft Method for liquefaction of a stream rich in hydrocarbons
AU2006222325B2 (en) * 2005-03-04 2011-03-24 Linde Aktiengesellschaft Method for liquefaction of a stream rich in hydrocarbons

Also Published As

Publication number Publication date
AU6053173A (en) 1974-01-03

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee