DE102008019392A1 - Process for liquefying a hydrocarbon-rich fraction - Google Patents
Process for liquefying a hydrocarbon-rich fraction Download PDFInfo
- Publication number
- DE102008019392A1 DE102008019392A1 DE102008019392A DE102008019392A DE102008019392A1 DE 102008019392 A1 DE102008019392 A1 DE 102008019392A1 DE 102008019392 A DE102008019392 A DE 102008019392A DE 102008019392 A DE102008019392 A DE 102008019392A DE 102008019392 A1 DE102008019392 A1 DE 102008019392A1
- Authority
- DE
- Germany
- Prior art keywords
- hydrocarbon
- rich fraction
- refrigerant mixture
- gas
- liquefied
- 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.)
- Withdrawn
Links
- 229930195733 hydrocarbon Natural products 0.000 title claims abstract description 36
- 150000002430 hydrocarbons Chemical class 0.000 title claims abstract description 36
- 239000004215 Carbon black (E152) Substances 0.000 title claims abstract description 31
- 238000000034 method Methods 0.000 title claims abstract description 22
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims abstract description 28
- 239000003507 refrigerant Substances 0.000 claims abstract description 26
- 239000000203 mixture Substances 0.000 claims abstract description 25
- 239000007789 gas Substances 0.000 claims abstract description 21
- 239000007791 liquid phase Substances 0.000 claims abstract description 15
- 238000001816 cooling Methods 0.000 claims abstract description 10
- 239000003345 natural gas Substances 0.000 claims abstract description 9
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 12
- OFBQJSOFQDEBGM-UHFFFAOYSA-N n-pentane Natural products CCCCC OFBQJSOFQDEBGM-UHFFFAOYSA-N 0.000 claims description 8
- 229910052757 nitrogen Inorganic materials 0.000 claims description 6
- ATUOYWHBWRKTHZ-UHFFFAOYSA-N Propane Chemical compound CCC ATUOYWHBWRKTHZ-UHFFFAOYSA-N 0.000 claims description 5
- 239000007788 liquid Substances 0.000 claims description 5
- OTMSDBZUPAUEDD-UHFFFAOYSA-N Ethane Chemical compound CC OTMSDBZUPAUEDD-UHFFFAOYSA-N 0.000 claims description 3
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 claims description 3
- IJDNQMDRQITEOD-UHFFFAOYSA-N n-butane Chemical compound CCCC IJDNQMDRQITEOD-UHFFFAOYSA-N 0.000 claims description 3
- 239000005977 Ethylene Substances 0.000 claims description 2
- 239000001273 butane Substances 0.000 claims description 2
- 230000006835 compression Effects 0.000 claims description 2
- 238000007906 compression Methods 0.000 claims description 2
- 239000001294 propane Substances 0.000 claims description 2
- 238000000926 separation method Methods 0.000 claims description 2
- 238000010438 heat treatment Methods 0.000 claims 1
- 239000012071 phase Substances 0.000 abstract description 3
- 241001295925 Gegenes Species 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000007710 freezing Methods 0.000 description 1
- 230000008014 freezing Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 230000002040 relaxant effect Effects 0.000 description 1
- 230000008016 vaporization Effects 0.000 description 1
- 238000010792 warming Methods 0.000 description 1
Classifications
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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
- F25J1/0047—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
- F25J1/02—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
-
- 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
- F25J1/0245—Different modes, i.e. 'runs', of operation; Process control
- F25J1/0249—Controlling refrigerant inventory, i.e. composition or quantity
- F25J1/025—Details related to the refrigerant production or treatment, e.g. make-up supply from feed gas itself
-
- 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
-
- 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.
- F25J1/0291—Refrigerant compression by combined gas compression and liquid pumping
-
- 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
- F25J2220/00—Processes or apparatus involving steps for the removal of impurities
- F25J2220/60—Separating impurities from natural gas, e.g. mercury, cyclic hydrocarbons
- F25J2220/64—Separating heavy hydrocarbons, e.g. NGL, LPG, C4+ hydrocarbons or heavy condensates in general
-
- 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
- F25J2245/90—Processes or apparatus involving steps for recycling of process streams the recycled stream being boil-off gas from storage
-
- 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
- F25J2290/00—Other details not covered by groups F25J2200/00 - F25J2280/00
- F25J2290/32—Details on header or distribution passages of heat exchangers, e.g. of reboiler-condenser or plate heat exchangers
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
Es wird ein Verfahren zum Verflüssigen einer kohlenwasserstoffreichen Fraktion, insbesondere von Erdgas, wobei die zu verflüssigende kohlenwasserstoffreiche Fraktion lediglich gegen ein Kältemittelgemisch abgekühlt und verflüssigt wird und das Kältemittelgemisch vor seiner Abkühlung in eine Gas- und eine Flüssigphase aufgetrennt wird, beschrieben. Erfindungsgemäß werden die Gas- (5) und die Flüssigphase (6) getrennt abgekühlt (E) und erst nach erfolgter Abkühlung (E) entspannt (a, b) und wiedervereinigt (8).The invention relates to a process for liquefying a hydrocarbon-rich fraction, in particular natural gas, wherein the hydrocarbon-rich fraction to be liquefied is merely cooled and liquefied against a refrigerant mixture and the refrigerant mixture is separated into a gas phase and a liquid phase before being cooled. According to the gas (5) and the liquid phase (6) are cooled separately (E) and only after cooling (E) relaxed (a, b) and reunited (8).
Description
Die Erfindung betrifft ein Verfahren zum Verflüssigen einer Kohlenwasserstoff-reichen Fraktion, insbesondere von Erdgas, wobei die zu verflüssigende Kohlenwasserstoffreiche Fraktion lediglich gegen ein Kältemittelgemisch abgekühlt und verflüssigt wird und das Kältemittelgemisch vor seiner Abkühlung in eine Gas- und eine Flüssigphase aufgetrennt wird.The The invention relates to a process for liquefying a hydrocarbon-rich Fraction, in particular of natural gas, the liquefied Hydrocarbon-rich fraction only against a refrigerant mixture chilled and liquefied is and the refrigerant mixture before its cooling off in a gas and a liquid phase is separated.
Gattungsgemäße Verfahren zum Verflüssigen einer Kohlenwasserstoff-reichen Fraktion kommen insbesondere bei der Realisierung von Erdgas-Verflüssigungsprozessen mit einer Verflüssigungsleistung von 200 kW bis mehr als 20 MW zur Anwendung.Generic method for liquefying a hydrocarbon-rich fraction is particularly important the realization of natural gas liquefaction processes with a liquefaction performance from 200 kW to more than 20 MW for use.
In
der
Die
zu verflüssigende,
Kohlenwasserstoff-reiche Fraktion wird über Leitung
Das
bei der Abkühlung
und Verflüssigung
der Kohlenwasserstoff-reichen Fraktion vollständig verdampfte Kältemittelgemisch
wird über
Leitung
Die
Gasphase wird über
die Leitung
Die
miteinander vermischte Gas- und Flüssigphase werden über Leitung
Dieses Vermischen von Gas- und Flüssigphase unmittelbar vor Eintritt in den Wärmetauscher E' ist deswegen sinnvoll, da dadurch die Verwendung eines konstruktiv einfachen und damit kostengünstigen Wärmetauschers ermöglicht wird. Von Nachteil dabei ist jedoch, dass das Vermischen der Gas- und Flüssigphase vergleichsweise aufwendig ist, da wenigstens eine Pumpe P' vorzusehen ist. Pumpen wiederum sind jedoch vergleichsweise kosten- sowie wartungsintensiv.This Mixing of gas and liquid phase just before entering the heat exchanger E 'is therefore useful as a result, the use of a structurally simple and thus inexpensive heat exchanger allows becomes. However, the disadvantage here is that the mixing of the gas and liquid phase is relatively expensive, since at least one pump P 'is provided. Pumps, however, are comparatively expensive and maintenance-intensive.
Aufgabe der vorliegenden Erfindung ist es, ein gattungsgemäßes Verfahren zum Verflüssigen einer Kohlenwasserstoff-reichen Fraktion, insbesondere von Erdgas, anzugeben, das die vorgenannten Probleme vermeidet und insbesondere die Realisierung eines kostengünstigeren und weniger wartungsintensiven Verflüssigungsprozesses ermöglicht.task The present invention is a generic method for liquefying a hydrocarbon-rich fraction, especially natural gas, to avoid the problems mentioned above and in particular the realization of a cheaper and less maintenance-intensive liquefaction process.
Zur Lösung dieser Aufgabe wird ein gattungsgemäßes Verfahren zum Verflüssigen einer Kohlenwasserstoff-reichen Fraktion, insbesondere von Erdgas vorgeschlagen, das dadurch gekennzeichnet ist, dass die Gas- und die Flüssigphase getrennt abgekühlt und erst nach erfolgter Abkühlung entspannt und wieder verreinigt werden.to solution This object will be a generic method for liquefying a hydrocarbon rich Fraction, in particular proposed by natural gas, characterized is that the gas and the liquid phase cooled separately and only relaxed after cooling off and be re-purified.
Erfindungsgemäß werden die Gas- sowie die Flüssigphase nunmehr getrennt auf die gewünschte Temperatur abgekühlt und erst anschließend, nach einer Entspannung auf den gewünschten Druck, zusammengeführt. Bei dieser erfindungsgemäßen Verfahrensweise kann auf die Verwendung einer Flüssigkeitspumpe verzichtet werden. Die mit einer derartigen Pumpe verbundenen Nachteile werden somit vermieden. Anstelle der Pumpe wird jedoch ein weiteres Entspannungsventil erforderlich.According to the invention the gas and the liquid phase now separated to the desired temperature chilled and only afterwards, after relaxing to the desired pressure, merged. at this procedure according to the invention may be due to the use of a liquid pump be waived. The disadvantages associated with such a pump are thus avoided. Instead of the pump, however, another Expansion valve required.
Der Entfall der vergleichsweise störungsanfälligen Pumpe führt zu einer höheren Betriebssicherheit sowie zu einer längeren Laufzeit des Verflüssigungsprozesses. Des Weiteren wird das Betriebspersonal entlastet, da das Überwachen der bisher erforderlichen Pumpen entfällt. Darüber hinaus führt das erfindungsgemäße Verfahren zu einer Einsparung von Betriebskosten, insbesondere von Wartungs-, Strom- und Personalkosten.Of the Abandonment of the comparatively fault-prone pump leads to a higher one Operational safety and a longer duration of the liquefaction process. Furthermore, the operating staff is relieved because the monitoring the previously required pumps deleted. In addition, the method according to the invention leads to a saving of operating costs, in particular of maintenance, electricity and staff costs.
Weitere vorteilhafte Ausgestaltungen des erfindungsgemäßen Verfahren zum Verflüssigen einer Kohlenwasserstoff-reichen Fraktion, insbesondere von Erdgas, die Gegenstände der abhängigen Patentansprüche darstellen, sind dadurch gekennzeichnet, dass
- – die Wiedervereinigung der Gas- und Flüssigphase vor oder nach deren Anwärmung gegen die zu verflüssigende Kohlenwasserstoff-reiche Fraktion erfolgt,
- – aus der abzukühlenden Kohlenwasserstoff-reichen Fraktion eine an schwereren Kohlenwasserstoffen reiche Fraktion abgetrennt wird,
- – das Kältemittelgemisch die Komponenten Stickstoff, Methan, Ethan, Ethylen, Propan, Butan und/oder Pentan aufweist,
- – dem Kältemittelgemisch zumindest ein Teil der abzukühlenden Kohlenwasserstoff-reichen Fraktion, der abgetrennten, an schwereren Kohlenwasserstoffen reichen Fraktion und/oder der verflüssigten Kohlenwasserstoff-reichen Fraktion zugesetzt wird, wobei diese Fraktionen vorzugsweise die Komponente Methan ersetzen,
- – sofern die verflüssigte Kohlenwasserstoff-reiche Fraktion in einem Speicherbehälter (zwischen) gelagert wird, das in dem Speicherbehälter anfallende Rückgas zumindest teilweise dem Kältemittelgemisch zugesetzt wird, wobei dieses Rückgas vorzugsweise die Komponente Stickstoff ersetzt und
- – sofern das Kältemittelgemisch wenigstens zweistufig verdichtet wird, die auf dem oder einem Zwischendruck nach der Abkühlung des verdichteten Kältemittelgemisches anfallende(n) Flüssigfraktion(en) auf den Enddruck der Verdichtung gepumpt und der Auftrennung des Kältemittelgemisches zugespeist wird bzw. werden.
- The reunification of the gas and liquid phases takes place before or after their warming up against the hydrocarbon-rich fraction to be liquefied,
- A fraction rich in heavier hydrocarbons is separated from the hydrocarbon-rich fraction to be cooled,
- The refrigerant mixture comprises the components nitrogen, methane, ethane, ethylene, propane, butane and / or pentane,
- At least part of the hydrocarbon-rich fraction to be cooled is added to the refrigerant mixture, to the separated fraction rich in heavier hydrocarbons and / or to the liquefied hydrocarbon-rich fraction, these fractions preferably replacing the component methane,
- - If the liquefied hydrocarbon-rich fraction is stored in a storage container (between), the resulting in the storage tank return gas is at least partially added to the refrigerant mixture, said return gas preferably replaces the component nitrogen and
- If the refrigerant mixture is compressed at least in two stages, the liquid fraction (s) obtained at or after an intermediate pressure after cooling of the compressed refrigerant mixture is pumped to the final pressure of the compression and fed to the separation of the refrigerant mixture.
Das
erfindungsgemäße Verfahren
zum Verflüssigen
einer Kohlenwasserstoff-reichen Fraktion, insbesondere von Erdgas,
sowie weitere Ausgestaltungen desselben seien nachfolgend anhand
des in der
Wie
bereits anhand der
Über Leitung
Die über Leitung
Alternativ
zu der in der
Claims (7)
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102008019392A DE102008019392A1 (en) | 2008-04-17 | 2008-04-17 | Process for liquefying a hydrocarbon-rich fraction |
AU2009201206A AU2009201206B2 (en) | 2008-04-17 | 2009-03-27 | Method of liquefying a hydrocarbon-rich fraction |
GB0905581A GB2459173B (en) | 2008-04-17 | 2009-03-31 | Method of liquefying a hydrocarbon-rich fraction |
US12/425,064 US20090260392A1 (en) | 2008-04-17 | 2009-04-16 | Method of liquefying a hydrocarbon-rich fraction |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102008019392A DE102008019392A1 (en) | 2008-04-17 | 2008-04-17 | Process for liquefying a hydrocarbon-rich fraction |
Publications (1)
Publication Number | Publication Date |
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DE102008019392A1 true DE102008019392A1 (en) | 2009-10-22 |
Family
ID=40672070
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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DE102008019392A Withdrawn DE102008019392A1 (en) | 2008-04-17 | 2008-04-17 | Process for liquefying a hydrocarbon-rich fraction |
Country Status (4)
Country | Link |
---|---|
US (1) | US20090260392A1 (en) |
AU (1) | AU2009201206B2 (en) |
DE (1) | DE102008019392A1 (en) |
GB (1) | GB2459173B (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2484999A3 (en) * | 2011-02-08 | 2017-03-08 | Linde Aktiengesellschaft | Method for cooling a single or multi-component flow |
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Publication number | Priority date | Publication date | Assignee | Title |
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US20110259044A1 (en) * | 2010-04-22 | 2011-10-27 | Baudat Ned P | Method and apparatus for producing liquefied natural gas |
US20120000242A1 (en) * | 2010-04-22 | 2012-01-05 | Baudat Ned P | Method and apparatus for storing liquefied natural gas |
GB201912126D0 (en) * | 2019-08-23 | 2019-10-09 | Babcock Ip Man Number One Limited | Method of cooling boil-off gas and apparatus therefor |
Family Cites Families (12)
Publication number | Priority date | Publication date | Assignee | Title |
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US3282059A (en) * | 1964-01-21 | 1966-11-01 | Chicago Bridge & Iron Co | Method of purging heat exchangers of solidified impurities in the liquefaction of natural gas |
US3323315A (en) * | 1964-07-15 | 1967-06-06 | Conch Int Methane Ltd | Gas liquefaction employing an evaporating and gas expansion refrigerant cycles |
US3302416A (en) * | 1965-04-16 | 1967-02-07 | Conch Int Methane Ltd | Means for maintaining the substitutability of lng |
US3360944A (en) * | 1966-04-05 | 1968-01-02 | American Messer Corp | Gas liquefaction with work expansion of major feed portion |
FR2540612A1 (en) * | 1983-02-08 | 1984-08-10 | Air Liquide | METHOD AND INSTALLATION FOR COOLING A FLUID, IN PARTICULAR A LIQUEFACTION OF NATURAL GAS |
GB2326465B (en) * | 1997-06-12 | 2001-07-11 | Costain Oil Gas & Process Ltd | Refrigeration cycle using a mixed refrigerant |
DE10206388A1 (en) * | 2002-02-15 | 2003-08-28 | Linde Ag | Process for liquefying a hydrocarbon-rich stream |
DE10209799A1 (en) * | 2002-03-06 | 2003-09-25 | Linde Ag | Process for liquefying a hydrocarbon-rich stream |
FR2855526B1 (en) * | 2003-06-02 | 2007-01-26 | Technip France | METHOD AND INSTALLATION FOR THE SIMULTANEOUS PRODUCTION OF A NATURAL GAS THAT CAN BE LIQUEFIED AND A CUTTING OF NATURAL GAS LIQUIDS |
DE102005010051A1 (en) * | 2005-03-04 | 2006-09-07 | Linde Ag | Process for vaporizing a hydrocarbon-rich stream |
DE102005010055A1 (en) * | 2005-03-04 | 2006-09-07 | Linde Ag | Process for liquefying a hydrocarbon-rich stream |
US8650906B2 (en) * | 2007-04-25 | 2014-02-18 | Black & Veatch Corporation | System and method for recovering and liquefying boil-off gas |
-
2008
- 2008-04-17 DE DE102008019392A patent/DE102008019392A1/en not_active Withdrawn
-
2009
- 2009-03-27 AU AU2009201206A patent/AU2009201206B2/en not_active Ceased
- 2009-03-31 GB GB0905581A patent/GB2459173B/en not_active Expired - Fee Related
- 2009-04-16 US US12/425,064 patent/US20090260392A1/en not_active Abandoned
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2484999A3 (en) * | 2011-02-08 | 2017-03-08 | Linde Aktiengesellschaft | Method for cooling a single or multi-component flow |
Also Published As
Publication number | Publication date |
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GB2459173A (en) | 2009-10-21 |
GB0905581D0 (en) | 2009-05-13 |
GB2459173B (en) | 2010-11-17 |
AU2009201206A1 (en) | 2009-11-05 |
US20090260392A1 (en) | 2009-10-22 |
AU2009201206B2 (en) | 2014-08-07 |
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