GB1317657A - Process for regulating the temperature of liquefied gases in a liquefying apparatus - Google Patents

Process for regulating the temperature of liquefied gases in a liquefying apparatus

Info

Publication number
GB1317657A
GB1317657A GB3171770A GB3171770A GB1317657A GB 1317657 A GB1317657 A GB 1317657A GB 3171770 A GB3171770 A GB 3171770A GB 3171770 A GB3171770 A GB 3171770A GB 1317657 A GB1317657 A GB 1317657A
Authority
GB
United Kingdom
Prior art keywords
refrigerant
valve
temperature
expansion
responsive
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
GB3171770A
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.)
Technip France SAS
Original Assignee
Technip SA
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 Technip SA filed Critical Technip SA
Publication of GB1317657A publication Critical patent/GB1317657A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
    • G05D23/00—Control of temperature
    • G05D23/19—Control of temperature characterised by the use of electric means
    • G05D23/1919—Control of temperature characterised by the use of electric means characterised by the type of controller
    • 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
    • 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
    • F25J1/02—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
    • F25J1/0245—Different modes, i.e. 'runs', of operation; Process control
    • F25J1/0249—Controlling refrigerant inventory, i.e. composition or quantity
    • 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
    • F25J1/0257—Construction and layout of liquefaction equipments, e.g. valves, machines
    • F25J1/0262—Details of the cold heat exchange system
    • F25J1/0264—Arrangement of heat exchanger cores in parallel with different functions, e.g. different cooling streams
    • F25J1/0265—Arrangement of heat exchanger cores in parallel with different functions, e.g. different cooling streams comprising cores associated exclusively with the cooling of a refrigerant stream, e.g. for auto-refrigeration or economizer
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
    • G05D23/00—Control of temperature

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Automation & Control Theory (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

1317657 Gas liquefaction process; refrigerating COMPAGNIE FRANCAISE D'ETUDES & DE CONSTRUCTION TECHNIP 30 June 1970 [8 Jan 1970] 31717/70 Headings F4H and F4P In a gas, e.g. natural gas, liquefaction process wherein feed gas is discharged by a compressor 13 through heat exchange coils 12, 20, 27 where it is cooled to liquefaction temperature by indirect heat exchange with a portion of successive liquid fractions of a multicomponent refrigerant having been withdrawn from separators 6, 14, 21 and expanded through injector heads 11, 19, 26, and wherein further cooling of the feed is effected in a coil 30 by indirect heat exchange with the most volatile component of the refrigerant, e.g., nitrogen having been withdrawn from the gas space of separator 21, liquefied at 25 in heat exchange with the remainder of the liquid from 21, after expansion at 24 and expanded through an injector head 29, the temperature of the liquid product is controlled by (a) a flow regulating valve 32 in the refrigerant line upstream of expansion head 24, (b) a flow regulating valve 33 upstream of expansion head 29 and (c) a flow regulating valve 34 in a make-up line for admitting a mixture of the two most volatile components of the refrigerant; said valves 32, 33, 34 being univocally responsive to at least two condition parameters of the coldest refrigerant, e.g. temperature and pressure. As shown, flow valve 33 is responsive to pressure within separator 21 as measured by a gauge 35, valve 32 is responsive to the temperature indicated by 36 of the coldest refrigerant prior to expansion at 29 and make-up valve 34 is responsive to temperature indicated at 37 of refrigerant after expansion at 29. A further measurement of pressure of expanded refrigerant taken by gauge 38 serves to control the speed of refrigerant compressor 3. In a modification valve 32 is controlled by temperature probe 37, valve 33 by 36, valve 34 by pressure gauge 35 and compressor speed by gauge 38. Reference has been directed by the Comptroller to Specification 1,122,860.
GB3171770A 1970-01-08 1970-06-30 Process for regulating the temperature of liquefied gases in a liquefying apparatus Expired GB1317657A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR707000526A FR2074594B1 (en) 1970-01-08 1970-01-08

Publications (1)

Publication Number Publication Date
GB1317657A true GB1317657A (en) 1973-05-23

Family

ID=9048749

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3171770A Expired GB1317657A (en) 1970-01-08 1970-06-30 Process for regulating the temperature of liquefied gases in a liquefying apparatus

Country Status (8)

Country Link
US (1) US3742721A (en)
AR (1) AR196289A1 (en)
CA (1) CA938881A (en)
DE (1) DE2036222A1 (en)
FR (1) FR2074594B1 (en)
GB (1) GB1317657A (en)
NL (1) NL7011067A (en)
SU (1) SU455554A3 (en)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2201444B1 (en) * 1972-09-22 1977-01-14 Teal Procedes Air Liquide Tech
US4809154A (en) * 1986-07-10 1989-02-28 Air Products And Chemicals, Inc. Automated control system for a multicomponent refrigeration system
US4784677A (en) * 1987-07-16 1988-11-15 The Boc Group, Inc. Process and apparatus for controlling argon column feedstreams
US4970867A (en) * 1989-08-21 1990-11-20 Air Products And Chemicals, Inc. Liquefaction of natural gas using process-loaded expanders
US5139548A (en) * 1991-07-31 1992-08-18 Air Products And Chemicals, Inc. Gas liquefaction process control system
US5791160A (en) * 1997-07-24 1998-08-11 Air Products And Chemicals, Inc. Method and apparatus for regulatory control of production and temperature in a mixed refrigerant liquefied natural gas facility
TWI314637B (en) * 2003-01-31 2009-09-11 Shell Int Research Process of liquefying a gaseous, methane-rich feed to obtain liquefied natural gas
FR2890761B1 (en) * 2005-09-12 2007-10-19 Air Liquide METHOD FOR SUPPLYING A GAS MIXTURE
CA2692967C (en) 2007-07-12 2016-05-17 Shell Internationale Research Maatschappij B.V. Method and apparatus for cooling a hydrocarbon stream
US20090025422A1 (en) * 2007-07-25 2009-01-29 Air Products And Chemicals, Inc. Controlling Liquefaction of Natural Gas
CA2735884C (en) * 2008-09-19 2017-01-17 Shell Internationale Research Maatschappij B.V. Method of cooling a hydrocarbon stream and an apparatus therefor
GB2469077A (en) * 2009-03-31 2010-10-06 Dps Bristol Process for the offshore liquefaction of a natural gas feed
NO2449325T3 (en) * 2009-07-03 2018-01-20
US20140183027A1 (en) * 2011-05-09 2014-07-03 Fluor Technologies Corporation Internal heat exchanger for distillation column

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2581558A (en) * 1947-10-20 1952-01-08 Petrocarbon Ltd Plural stage cooling machine
US2772543A (en) * 1953-03-24 1956-12-04 Berry Frank Multiple hydraulic compressor in a refrigeration system
US3010289A (en) * 1959-04-14 1961-11-28 Carrier Corp Refrigeration system with variable speed compressor
US3300991A (en) * 1964-07-07 1967-01-31 Union Carbide Corp Thermal reset liquid level control system for the liquefaction of low boiling gases
US3364685A (en) * 1965-03-31 1968-01-23 Cie Francaise D Etudes Et De C Method and apparatus for the cooling and low temperature liquefaction of gaseous mixtures
GB1135871A (en) * 1965-06-29 1968-12-04 Air Prod & Chem Liquefaction of natural gas

Also Published As

Publication number Publication date
DE2036222A1 (en) 1971-07-22
AR196289A1 (en) 1973-12-18
SU455554A3 (en) 1974-12-30
CA938881A (en) 1973-12-25
US3742721A (en) 1973-07-03
FR2074594B1 (en) 1973-02-02
NL7011067A (en) 1971-07-12
FR2074594A1 (en) 1971-10-08

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PLNP Patent lapsed through nonpayment of renewal fees