DK200900341A - Fremgangsmåde og apparat til afköling af en carbonhydridström - Google Patents

Fremgangsmåde og apparat til afköling af en carbonhydridström Download PDF

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DK200900341A
DK200900341A DK200900341A DKPA200900341A DK200900341A DK 200900341 A DK200900341 A DK 200900341A DK 200900341 A DK200900341 A DK 200900341A DK PA200900341 A DKPA200900341 A DK PA200900341A DK 200900341 A DK200900341 A DK 200900341A
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stream
mixed refrigerant
cooling
flow
cooled
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DK200900341A
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Chantant Francois
Dijk Jan Frederick Van
Jager Dick Marco
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Shell Int Research
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    • 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
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B9/00—Compression machines, plants or systems, in which the refrigerant is air or other gas of low boiling point
    • F25B9/002—Compression machines, plants or systems, in which the refrigerant is air or other gas of low boiling point characterised by the refrigerant
    • F25B9/006—Compression machines, plants or systems, in which the refrigerant is air or other gas of low boiling point characterised by the refrigerant the refrigerant containing more than one component
    • 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
    • F25J1/0032—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 the feed stream itself or separated fractions from it, i.e. "internal refrigeration"
    • F25J1/0042—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 the feed stream itself or separated fractions from it, i.e. "internal refrigeration" by liquid expansion with extraction of work
    • 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
    • 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
    • F25J1/003—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
    • F25J1/0057—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 after expansion of the liquid refrigerant stream with extraction of work
    • 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
    • F25J1/0214—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 dual level refrigeration cascade with at least one 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
    • F25J1/0279—Compression of refrigerant or internal recycle fluid, e.g. kind of compressor, accumulator, suction drum etc.
    • F25J1/0281—Compression of refrigerant or internal recycle fluid, e.g. kind of compressor, accumulator, suction drum etc. characterised by the type of prime driver, e.g. hot gas expander
    • F25J1/0283—Gas turbine as the prime mechanical driver
    • 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
    • F25J1/0279—Compression of refrigerant or internal recycle fluid, e.g. kind of compressor, accumulator, suction drum etc.
    • F25J1/0292—Refrigerant compression by cold or cryogenic suction of the refrigerant 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
    • F25J1/02—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
    • F25J1/0279—Compression of refrigerant or internal recycle fluid, e.g. kind of compressor, accumulator, suction drum etc.
    • F25J1/0295—Shifting of the compression load between different cooling stages within a refrigerant cycle or within a cascade refrigeration system

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  • 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)
  • Production Of Liquid Hydrocarbon Mixture For Refining Petroleum (AREA)

Claims (17)

1. Fremgangsmåde til afkøling af en carbonhydridstrøm, såsom en naturgasstrøm, hvilken fremgangsmåde omfatter følgende trin: (a) at tilvejebringe en blandet kølemiddefstrøm som omfatter et første blandet kølemiddel; (b) at lede den blandede kølemiddelstrøm gennem en eller flere varmevekslere til tilvejebringelse af en afkølet blandet kølemiddelstrøm; (c) at overvåge temperaturen (TI) og flowet (Fl) af mindst en del af den afkølede blandede kølemiddelstrøm; (d) at tilvejebringe en afkølingsstrøm som omfatter et andet blandet kølemiddel; (e) at overvåge flowet (F2) af mindst en del af den afkølingsstrøm som er tilvejebragt i trin (d); (f) at ekspandere i det mindste en fraktion af afkølingsstrømmen til tilvejebringelse af en eller flere af de ekspanderede afkølingsstrømme; (g) at lede den mindst ene ekspanderede afkølingsstrøm gennem en eller flere af varmevekslerne i trin (b) til afkøling af den blandede kølemiddelstrøm, hvorved den afkølede blandede kølemiddelstrøm tilvejebringes; (h) at regulere afkølingsstrømmens flow (F2) under anvendelse af flowet (Fl) og temperaturen (TI) af mindst en del af den afkølede blandede kølemiddelstrøm; (i) at anvende den afkølede blandede kølemiddelstrøm til afkøling af carbonhydridstrømmen.
2. Fremgangsmåde ifølge krav 1, hvor trin (i) omfatter: (11) at lede den afkølede blandede kølemiddelstrøm gennem mindst en primær varmeveksler; og (12) at lede carbonhydridstrømmen gennem den mindst ene primære varmeveksler for at blive afkølet af den afkølede blandede kølemiddelstrøm eller i det mindste en del deraf.
3. Fremgangsmåde ifølge krav 1 eller krav 2, hvor mindst en del af afkølingsstrømmen også passerer gennem den mindst ene varmeveksler i trin (b), for at tilvejebringe en eller flere køligere afkølingsstrømme før ekspansionen i trin (0.
4. Fremgangsmåde ifølge krav 3, hvor flowet (F2) af mindst en del af afkølingsstrømmen overvåges som flowet af mindst en del af en køligere afkølingsstrøm.
5. Fremgangsmåde ifølge et eller flere af de foregående krav, hvor den blandede kølemiddelstrøm før trin (i) ledes gennem et hvilket som helst antal fra 1 til 6 varmevekslere, og hvor en anden ekspanderet afkølingsstrøm af den mindst ene afkølingsstrøm fra trin (f) ledes gennem hver varmeveksler og afkøler den blandede kølemiddelstrøm.
6. Fremgangsmåde ifølge krav 5, hvor den afkølede blandede kølemiddelstrøms temperatur (Tla, Tlb) og flow (Fla, Flb) overvåges nedstrøms for hver varmeveksler.
7. Fremgangsmåde ifølge et eller flere af de foregående krav, hvor carbonhydridstrømmen også passerer gennem mindst en af varmevekslerne før trin (i).
8. Fremgangsmåde ifølge et eller flere af de foregående krav, hvor afkølingsstrømmens gennemsnitlige molekylvægt er højere end den blandede kølemiddelstrøms gennemsnitlige molekylvægt.
9. Fremgangsmåde ifølge et eller flere af de foregående krav, hvor den afkølede blandede kølemiddelstrøm før trin (i) opdeles i en lettere strøm og en tungere strøm.
10. Fremgangsmåde ifølge krav 9, hvor anvendelsen, i trin (i), af den afkølede blandede kølemiddelstrøm til afkøling af carbonhydridstrømmen omfatter varmeveksling af carbonhydridstrømmen mod den lettere strøm og den tungere strøm,
11. Fremgangsmåde ifølge krav 9 eller 10, hvor overvågning af flowet (Fl) af mindst en del af den afkølede blandede kølemiddelstrøm omfatter overvågning af flowet (F3) af den tungere strøm.
12. Fremgangsmåde ifølge krav 11, hvor den tungere strøm definerer mindst en del af den afkølede blandede strøm.
13. Fremgangsmåde ifølge et eller flere af de foregående krav, hvor de målte værdier for temperaturen (TI) og flowet (Fl) af mindst en del af den afkølede blandede kølemiddelstrøm og for flowet (F2) af afkølingsstrømmen sendes til en reguleringsindretning som regulerer ekspansionen i trin (f).
14. Fremgangsmåde ifølge et eller flere af de foregående krav, hvor carbonhydridstrømmen fortættes i den primære varmeveksler nar carbonhydridstrømmen ledes gennem den mindst ene primære varmeveksler, hvorved der tilvejebringes en fortættet (flydende) carbonhydridstrøm, såsom fortættet (flydende) naturgas.
15. Apparat til afkøling afen carbonhydridstrøm, såsom en naturgasstrøm, hvilket apparat omfatter mindst: en flowmonitor til overvågning af flowet (F2) af mindst en del af en afkølingsstrøm som omfatter et andet blandet kølemiddel; en eller flere ekspandere til ekspansion af i det mindste en fraktion af afkølingsstrømmen, hvorved der tilvejebringes en eller flere ekspanderede afkølingsstrømme; en eller flere varmevekslere som er indrettet til at modtage og afkøle en blandet kølemiddelstrøm der omfatter et første blandet kølemiddel, mod den mindst ene ekspanderede afkølingsstrøm, hvorved der tilvejebringes en afkølet blandet kølemiddelstrøm; en temperaturmonitor og en flowmonitor til overvågning af temperaturen (TI) og flowet (Fl) af mindst en del af den afkølede blandede kølemiddelstrøm; en reguleringsindretning ti! regulering af afkølingsstrømmens flow (F2) under anvendelse af de målte værdier for flowet (Fl) og temperaturen (TI) af mindst en del af den afkølede blandede kølemiddelstrøm; mindst en primær varmeveksler som er anbragt nedstrøms for den mindst ene varmeveksler til modtagelse af den afkølede blandede kølemiddelstrøm og carbonhydridstrømmen og til afkøling af carbonhydridstrømmen mod den afkølede blandede kølemiddelstrøm.
16. Fremgangsmåde til afkøling af en blandet kølemiddelstrøm, hvilken fremgangsmåde mindst omfatter følgende trin: (a) at tilvejebringe en blandet kølemiddelstrøm som omfatter et første blandet kølemiddel; (b) at lede den blandede kølemiddelstrøm gennem en eller flere varmevekslere til tilvejebringelse af en afkølet blandet kølemiddelstrøm; (c) at overvåge temperaturen (TI) og flowet (Fl) af mindst en del af den afkølede blandede kølemiddelstrøm; (d) at tilvejebringe en afkølingsstrøm som omfatter et andet blandet kølemiddel; (e) at overvåge flowet (F2) af mindst en del af den afkølingsstrøm som tilvejebringes i trin (d); (f) at ekspandere i det mindste en fraktion af afkølingsstrømmen til tilvejebringelse af en eller flere ekspanderede afkølingsstrømme; (g) at lede den mindst ene ekspanderede afkølingsstrøm gennem en eller flere af varmevekslerne i trin (b) til afkøling af den blandede kølemiddelstrøm, hvorved den afkølede blandede kølemiddelstrøm tilvejebringes; og (h) regulering af afkølingsstrømmens flow (F2) under anvendelse af flowet (Fl) og temperaturen (TI) af mindst en del af den afkølede blandede kølemiddelstrøm, hvor en carbonhydridstrøm, såsom en naturgasstrøm, også passerer gennem mindst en af varmevekslerne i trin (b), i hvilke varmevekslere den afkøles til frembringelse af en afkølet carbonhydridstrøm.
17, Apparat til afkøling af en blandet kølemiddelstrøm, hvilket apparat omfatter mindst: en flowmonitor til overvågning af flowet (F2) af mindst en del af en afkølingsstrøm som omfatter et andet blandet kølemiddel; en eller flere ekspandere til ekspansion af mindst en fraktion af afkølingsstrømmen, hvorved der tilvejebringes en eller flere ekspanderede kølestrømme; en eller flere varmevekslere som er indrettet til at modtage og afkøle en blandet kølemiddelstrøm som omfatter et første blandet kølemiddel, og en carbonhydridstrøm, såsom en naturgasstrøm, mod den mindst ene ekspanderede afkølingsstrøm, hvorved der tilvejebringes en afkølet blandet kølemiddelstrøm; en temperaturmonitor og en flowmonitor til overvågning af temperaturen (TI) og flowet (Fl) af mindst en del af den afkølede blandede kølemiddelstrøm; en reguleringsindretning til regulering af afkølingsstrømmens flow (F2) under anvendelse af de målte værdier for flowet (Fl) og temperaturen (TI) af mindst en del af den afkølede blandede kølemiddelstrøm.
DK200900341A 2007-07-12 2009-03-12 Fremgangsmåde og apparat til afkøling af en carbonhydridstrøm DK178396B1 (da)

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EP07112351 2007-07-12
EP07112351 2007-07-12
EP2008059046 2008-07-10
PCT/EP2008/059046 WO2009007435A2 (en) 2007-07-12 2008-07-10 Method and apparatus for cooling a hydrocarbon stream

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US (1) US10012432B2 (da)
EP (1) EP2165138A2 (da)
JP (1) JP5683266B2 (da)
KR (1) KR20100032919A (da)
CN (1) CN101688752B (da)
AU (1) AU2008274179B2 (da)
BR (1) BRPI0814619B1 (da)
CA (1) CA2692967C (da)
DK (1) DK178396B1 (da)
RU (1) RU2469249C2 (da)
TW (1) TWI435044B (da)
WO (1) WO2009007435A2 (da)

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