CN115307056A - System for supplying consumers - Google Patents

System for supplying consumers Download PDF

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Publication number
CN115307056A
CN115307056A CN202210486276.XA CN202210486276A CN115307056A CN 115307056 A CN115307056 A CN 115307056A CN 202210486276 A CN202210486276 A CN 202210486276A CN 115307056 A CN115307056 A CN 115307056A
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CN
China
Prior art keywords
gas
liquid
channel
supply system
heat exchanger
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.)
Pending
Application number
CN202210486276.XA
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Chinese (zh)
Inventor
E.奥兰迪
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.)
Gaztransport et Technigaz SA
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Gaztransport et Technigaz SA
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Publication date
Application filed by Gaztransport et Technigaz SA filed Critical Gaztransport et Technigaz SA
Publication of CN115307056A publication Critical patent/CN115307056A/en
Pending legal-status Critical Current

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C9/00—Methods or apparatus for discharging liquefied or solidified gases from vessels not under pressure
    • F17C9/02—Methods or apparatus for discharging liquefied or solidified gases from vessels not under pressure with change of state, e.g. vaporisation
    • F17C9/04—Recovery of thermal energy
    • 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
    • F25J1/0025—Boil-off gases "BOG" from storages
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C13/00—Details of vessels or of the filling or discharging of vessels
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C9/00—Methods or apparatus for discharging liquefied or solidified gases from vessels not under pressure
    • F17C9/02—Methods or apparatus for discharging liquefied or solidified gases from vessels not under pressure with change of state, e.g. vaporisation
    • 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"
    • F25J1/004—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 flash gas recovery
    • 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"
    • F25J1/0045—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 vaporising a liquid return 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
    • 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
    • F25J1/0201—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 only internal refrigeration means, i.e. without external refrigeration
    • F25J1/0202—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 only internal refrigeration means, i.e. without external refrigeration in a quasi-closed internal refrigeration loop
    • 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
    • F25J1/0203—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 single-component refrigerant [SCR] fluid in a closed vapor compression cycle
    • F25J1/0208—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 single-component refrigerant [SCR] fluid in a closed vapor compression cycle in combination with an internal quasi-closed refrigeration loop, e.g. with deep flash recycle loop
    • 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
    • F25J1/0228—Coupling of the liquefaction unit to other units or processes, so-called integrated processes
    • F25J1/0229—Integration with a unit for using hydrocarbons, e.g. consuming hydrocarbons as feed stock
    • F25J1/023—Integration with a unit for using hydrocarbons, e.g. consuming hydrocarbons as feed stock for the combustion as fuels, i.e. integration with the fuel gas 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
    • 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
    • F25J1/0275—Construction and layout of liquefaction equipments, e.g. valves, machines adapted for special use of the liquefaction unit, e.g. portable or transportable devices
    • F25J1/0277—Offshore use, e.g. during shipping
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2221/00—Handled fluid, in particular type of fluid
    • F17C2221/03—Mixtures
    • F17C2221/032—Hydrocarbons
    • F17C2221/033—Methane, e.g. natural gas, CNG, LNG, GNL, GNC, PLNG
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2223/00—Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel
    • F17C2223/01—Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel characterised by the phase
    • F17C2223/0146—Two-phase
    • F17C2223/0153—Liquefied gas, e.g. LPG, GPL
    • F17C2223/0161—Liquefied gas, e.g. LPG, GPL cryogenic, e.g. LNG, GNL, PLNG
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2223/00—Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel
    • F17C2223/03—Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel characterised by the pressure level
    • F17C2223/033—Small pressure, e.g. for liquefied gas
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2223/00—Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel
    • F17C2223/04—Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel characterised by other properties of handled fluid before transfer
    • F17C2223/042—Localisation of the removal point
    • F17C2223/043—Localisation of the removal point in the gas
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2227/00—Transfer of fluids, i.e. method or means for transferring the fluid; Heat exchange with the fluid
    • F17C2227/03—Heat exchange with the fluid
    • F17C2227/0337—Heat exchange with the fluid by cooling
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2227/00—Transfer of fluids, i.e. method or means for transferring the fluid; Heat exchange with the fluid
    • F17C2227/03—Heat exchange with the fluid
    • F17C2227/0367—Localisation of heat exchange
    • F17C2227/0388—Localisation of heat exchange separate
    • F17C2227/039—Localisation of heat exchange separate on the pipes
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2260/00—Purposes of gas storage and gas handling
    • F17C2260/03—Dealing with losses
    • F17C2260/031—Dealing with losses due to heat transfer
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2265/00—Effects achieved by gas storage or gas handling
    • F17C2265/03—Treating the boil-off
    • F17C2265/032—Treating the boil-off by recovery
    • F17C2265/033—Treating the boil-off by recovery with cooling
    • F17C2265/034—Treating the boil-off by recovery with cooling with condensing the gas phase
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    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2265/00—Effects achieved by gas storage or gas handling
    • F17C2265/03—Treating the boil-off
    • F17C2265/032—Treating the boil-off by recovery
    • F17C2265/037—Treating the boil-off by recovery with pressurising
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    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2265/00—Effects achieved by gas storage or gas handling
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    • F17C2265/038—Treating the boil-off by recovery with expanding
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    • F17C2265/00—Effects achieved by gas storage or gas handling
    • F17C2265/06—Fluid distribution
    • F17C2265/066—Fluid distribution for feeding engines for propulsion
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    • F17C2270/00—Applications
    • F17C2270/01—Applications for fluid transport or storage
    • F17C2270/0102—Applications for fluid transport or storage on or in the water
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    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2270/00—Applications
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    • 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
    • F25J2230/00—Processes or apparatus involving steps for increasing the pressure of gaseous process streams
    • F25J2230/30—Compression of the feed stream
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
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    • 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
    • F25J2230/00—Processes or apparatus involving steps for increasing the pressure of gaseous process streams
    • F25J2230/60—Processes or apparatus involving steps for increasing the pressure of gaseous process streams the fluid being hydrocarbons or a mixture of hydrocarbons
    • 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
    • F25J2235/00—Processes or apparatus involving steps for increasing the pressure or for conveying of liquid process streams
    • F25J2235/60—Processes or apparatus involving steps for increasing the pressure or for conveying of liquid process streams the fluid being (a mixture of) hydrocarbons
    • 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
    • F25J2245/02—Recycle of a stream in general, e.g. a by-pass 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
    • F25J2290/00—Other details not covered by groups F25J2200/00 - F25J2280/00
    • F25J2290/34—Details about subcooling of liquids

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  • General Engineering & Computer Science (AREA)
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  • Thermal Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Ocean & Marine Engineering (AREA)
  • Combustion & Propulsion (AREA)
  • Filling Or Discharging Of Gas Storage Vessels (AREA)

Abstract

The invention relates to a system (1) for supplying a consumer (7) configured to be supplied with fuel, comprising a preparation system (45) which is arranged after an outlet (393) of a first channel (39) of a thermodynamic heat exchanger (41) of the preparation system. The preparation system (45) comprises a first phase separator (47), a second phase separator (55) and an expansion device (53) arranged on a conduit (51) connecting a liquid outlet (475) of the first phase separator (47) to an inlet (551) of the second phase separator. The inlet (471) of the first phase separator is connected to the outlet (393) of the first channel (39). The gas outlet (473) of the first phase separator is connected to a consumer (7) for delivering fuel. The supply system is configured to fluidly communicate the liquid outlet (555) of the second phase separator with at least one tank (3, 7).

Description

System for supplying consumers
Technical Field
The present invention relates to the field of transportation and/or storage of cryogenic liquids. The invention relates more particularly to a system for supplying a consumer configured to be supplied with a fuel prepared from a cryogenic liquid comprising at least methane.
Background
Gaseous hydrocarbons at room temperature and atmospheric pressure liquefy at low temperatures, i.e. temperatures below-60 ℃, to facilitate their transportation and/or storage. The hydrocarbons thus liquefied, also called cryogenic liquid, are then placed in tanks in a floating or onshore structure.
However, such tanks are never completely thermally insulated, and therefore vaporization of the cryogenic liquid is unavoidable. The phenomenon of natural evaporation is called vaporization and the gas produced by this natural evaporation is called Boil Off Gas (BOG). Thus, the tank of this structure comprises a liquid cryogenic liquid and a gas resulting from the vaporization of the liquid cryogenic liquid.
Part of the gas produced by the vaporization of the liquid cryogenic liquid can be used as fuel to supply at least one consumer, such as an engine, arranged to meet the operating energy requirements of a floating or onshore structure. Thus, power can be generated for the electrical equipment.
The consumers are generally adapted to the specific type of cryogenic liquid being transported and/or stored in the tanks of the structure. Thus, when another type of cryogenic liquid is transported and/or stored in the structure, the gas produced by vaporization may not be usable as fuel for the consumer. Therefore, the structure is typically dedicated to a particular type of cryogenic liquid.
Disclosure of Invention
It is an object of the present invention to provide a system for supplying fuel to a consumer configured to be supplied with fuel prepared from a gas resulting from the evaporation of a cryogenic liquid comprising at least methane, which cryogenic liquid is stored and/or transported simultaneously or alternately in at least one tank of a structure.
The present invention proposes a supply system for supplying a consumer configured to be supplied with a fuel prepared from a gas resulting from the evaporation of a cryogenic liquid comprising at least methane, the cryogenic liquid being stored in at least one tank, in particular a tank having a structure, the supply system comprising: a fuel preparation system; a supply branch configured to supply at least a portion of the gas from the tank to the preparation system; thermodynamic heat exchanger comprising at least two channels, wherein a first channel constitutes a supply branch comprising at least one compression device arranged before the inlet of the first channel, the supply system comprising a cooling branch configured to be passed by a cryogenic liquid, the cooling branch comprising a second channel of the heat exchanger configured to exchange heat with the first channel in order to at least partially liquefy the gas circulating in the first channel. The preparation system is arranged after the outlet of the first channel. The preparation system comprises a first phase separator, a second phase separator, and an expansion device arranged on a conduit connecting a liquid outlet of the first phase separator to an inlet of the second phase separator, the inlet of the first phase separator being connected to an outlet of the first channel, for example by a conduit, at least one gas outlet of the first phase separator being connected to a consumer for delivering fuel, the supply system being configured to fluidly communicate the liquid outlet of the second phase separator with at least one tank.
The supply system proposed by the invention is therefore configured to compress a gas resulting from the evaporation of a cryogenic liquid comprising at least methane, then to at least partially liquefy the gas by heat exchange in a thermodynamic heat exchanger, and to separate a liquid phase from a gaseous phase of the at least partially liquefied gas, the gaseous phase being the fuel of the consumer. Thus, the gaseous phase of the at least partially liquefied gas has a different composition than the cryogenic liquid contained in the tank(s) of the structure. More specifically, the methane content of the gaseous phase of the at least partially liquefied gas is greater than the methane content of the cryogenic liquid. Preferably, the gaseous phase of the at least partially liquefied gas has a methane index greater than or equal to 70.
In this context, it should be understood that the configuration of the supply system is therefore particularly suitable for cryogenic liquids comprising at least methane in a content lower than the content of at least one other compound contained in the cryogenic liquid. Thus, this configuration of the supply system can be implemented using a cryogenic liquid comprising at least methane, the methane content being the lowest compared to the other components contained in the cryogenic liquid.
"configured to be passed by cryogenic liquid" is understood to mean that the cooling branch uses cryogenic liquid as the gaseous cooling fluid. The gas circulating in the second channel of the thermal heat exchanger is therefore cooled by the cryogenic liquid circulating in the first channel of the thermal heat exchanger, which belongs to the cooling branch.
According to one embodiment, the supply system comprises a bypass branch with at least a phase separator, the bypass branch being arranged between the outlet of the compression device and the gas outlet of the first phase separator. The bypass branch may also allow to avoid the first passage of the thermal heat exchanger.
According to one embodiment, the gas outlets of the second phase separator are connected by a junction of the supply branches arranged between the gas outlet of the tank and the inlet of the compression device. Thus, the gas phase contained in the second phase separator can be reused.
According to one embodiment, the supply system comprises a heat exchanger configured to exchange heat between a gas produced by evaporation of the cryogenic liquid before it is compressed by the compression device and the gas compressed by the compression device. Thus, fuel production is improved.
According to one embodiment, the heat exchanger comprises a first channel arranged between a gas inlet of the supply system intended to be connected to the outlet of the tank and a second channel arranged between the outlet of the compression device and the inlet of the first channel of the thermodynamic heat exchanger, and the junction point.
According to one embodiment, the cooling branch comprises a cooling device arranged between the liquid inlet of the cooling branch and the inlet of the second channel of the thermodynamic heat exchanger to cool the cryogenic liquid. Thus, the heat exchange between the first channel of the thermal heat exchanger and the second channel of the thermal heat exchanger is improved.
According to one embodiment, the supply system comprises a heater-cooler arranged between the gas outlet of the preparation system and the gas outlet of the supply system connected to the fuel inlet of the consumer.
According to one embodiment, the cryogenic liquid comprising at least methane is liquefied natural gas or a mixture of liquid methane and alkanes having at least two carbon atoms and being in the liquid state. Preferably, the mixture consists of liquid ethane and liquid methane.
According to one embodiment, the alkane having at least two carbon atoms is selected from ethane, propane, butane and at least one mixture thereof. It should be understood that herein and hereinafter, "butane" refers to n-butane and isobutane, also known as 2-methylpropane.
According to one embodiment, the methane index of the mixture is less than 70. The methane index is a measure of the mechanical resistance to the shock generated in the engine during combustion of the gas; this is also known as engine knock. It is assigned to the test fuel based on operation in the knock test unit at the same standard knock intensity. Pure methane was designated as a reference fuel with a methane number of 100. Pure dihydro was also used as knock sensitive reference fuel with a methane number of 0. More specifically, the mixture comprises a majority of alkanes having at least two carbon atoms in a liquid state; thus, more alkanes having at least two carbon atoms are liquid in the mixture than liquid methane.
The invention also relates to a structure for transporting and/or storing a cryogenic liquid comprising methane, the structure comprising at least one tank containing the cryogenic liquid, the structure comprising at least one consumer consuming a fuel prepared from a gas resulting from the vaporization of the cryogenic liquid and at least one supply system according to the above, the supply system comprising at least one conduit connecting the gas outlet of the first separator to the consumer.
According to one embodiment, the direction of the flow of the methane comprising cryogenic liquid in the first channel of the thermodynamic heat exchanger is opposite to the direction of the flow of the methane comprising cryogenic liquid in the second channel of the thermodynamic heat exchanger. In other words, the flow of the methane-containing cryogenic liquid in the first channel of the thermodynamic heat exchanger occurs opposite to the flow of the methane-containing cryogenic liquid in the second channel of the thermodynamic heat exchanger.
According to one embodiment, the direction of the methane comprising cryogenic liquid flow in the first pass of the heat exchanger is opposite to the direction of the methane comprising cryogenic liquid flow in the second pass of the heat exchanger. In other words, the flow of the methane-containing cryogenic liquid in the first pass of the heat exchanger occurs opposite to the flow of the methane-containing cryogenic liquid in the second pass of the heat exchanger.
According to one embodiment, the supply system comprises a switching device configured to alternate between a first configuration for supplying the consumers with a fuel prepared from a gas resulting from the evaporation of a natural gas liquid contained in at least one tank of the structure and a second configuration of the supply system for supplying the consumers with a fuel prepared from a gas resulting from the evaporation of a mixture of liquid methane and an alkane having at least two carbon atoms and being in a liquid state in at least one tank of the structure.
According to one embodiment, the switching means comprises a plurality of regulating means at least partly provided in the supply branch, said plurality of regulating means comprising a first regulating means arranged to control the gas flow in the first passage and/or the bypass branch of the heat exchanger.
According to one embodiment, the switching means comprise a plurality of regulating means arranged at least partially in the cooling branch, said plurality of regulating means comprising at least a second regulating means arranged to control the liquid circulation in the second passage of the thermodynamic heat exchanger and/or into the bypass branch. Additionally or alternatively, the second regulating means may also be arranged to control the liquid circulation in the connecting passage of the supply system. The connecting passage connects the inlet of the second channel of the thermal heat exchanger to the connection point of the cooling branch. The connection point is arranged on the cooling branch between the second control device of the distribution device and the injection device.
According to one embodiment, the switching means comprises a plurality of regulating means arranged at least partly in the bypass branch and/or the supply branch, the plurality of regulating means comprising a third regulating means arranged to control the liquid circulation in the second passage of the heat exchanger or in the bypass branch.
The invention also proposes a transfer system for a cryogenic liquid comprising methane, the system comprising a structure having at least one of the aforementioned features, an insulated pipeline arranged to connect a tank installed in the structure to a floating or onshore storage facility, and a pump for driving cryogenic liquid through the insulated pipeline from the floating or onshore storage facility to the tank of the structure or from the tank to the floating or onshore storage facility.
The present invention also provides a method for loading or unloading a structure having at least one of the foregoing features, in which method cryogenic liquid is transferred from or from a floating or on-shore storage facility to a tank of the structure via an insulated pipeline.
The invention proposes a method for preparing a fuel from a gas produced by evaporation of a cryogenic liquid containing at least methane and stored in at least one tank, by means of a supply system having at least one of the aforementioned characteristics. The method comprises the steps of compressing the gas by means of a compression device, exchanging heat between the compressed gas and the cooled cryogenic liquid in a thermodynamic heat exchanger to at least partially liquefy the compressed gas, separating a liquid phase and a gaseous phase of the at least partially liquefied gas, and supplying said gaseous phase as fuel to a consumer.
Further characteristics and advantages of the invention will emerge from the description which follows and from the several exemplary embodiments which are given for illustrative purposes and are not limited to the reference to the enclosed schematic drawings, in which:
fig. 1 is a schematic view of a floating structure including a consumer supply system according to the present invention;
fig. 2 is a schematic diagram of a supply system for a consumer of the floating structure of fig. 1 in a first configuration;
FIG. 3 is a schematic view of a supply system for a consumer of the floating structure of FIG. 1 in a second configuration;
fig. 4 is a schematic cross-sectional view of the floating structure of fig. 1 and a loading/unloading terminal for a tank of the floating structure.
Detailed Description
It should be noted at the outset that although the drawings illustrate embodiments of the invention in detail, these drawings can of course be used to better define the invention where appropriate. It should also be noted that throughout the appended drawings, elements that are similar and/or perform the same function are referred to by the same reference frame.
Fig. 1 schematically shows a floating structure 70 comprising at least one tank 3,5 for storing and/or transporting at least one cryogenic liquid LC1, LC2 comprising methane. In the example shown, the structure 70 comprises a plurality of tanks 3,5 containing cryogenic liquids LC1, LC2.
The cryogenic liquid LC1, LC2 comprising methane may be liquefied natural gas LC1 or a mixture LC2 of liquid methane and alkanes having at least two carbon atoms and being in the liquid state, in particular at atmospheric pressure. The alkane may be selected from ethane, propane, butane and at least one mixture thereof. Preferably, the mixture consists of liquid ethane and liquid methane, in particular at atmospheric pressure. The methane index of the mixture LC2 is less than 70.
Referring to fig. 1, tanks 3,5 contain liquid cryogenic liquids LC1, LC2 of L2, L1. As the thermal insulation of the tanks 3,5 is not perfect, part of the cryogenic liquid LC1, LC2 vaporizes. Thus, tanks 3,5 of structure 70 include cryogenic liquids LC1, LC2 in liquid form L2, L1 and cryogenic liquids LC1, LC2 in gaseous form G1, G2.
The structure 70 comprises at least one propulsion device 9 supplied with fuel. For example, the at least one propulsion device 9 may be a propulsion engine of this construction, such as an ME-GI or XDF engine. It will be appreciated that this is only an exemplary embodiment of the invention, and that different propulsion devices may be installed without departing from the scope of the invention.
With reference to fig. 1, the structure 70 comprises a system 11 for supplying fuel to the propulsion device 9. The supply system 11 comprises a branch 13 for sampling the liquid phases L1, L2 of the cryogenic liquids LC1, LC2 contained in at least one tank 3,5 of the structure 70.
The liquid inlet 131 of the sampling branch 13 is immersed in the liquid phases L1, L2 of the cryogenic liquids LC1, LC2 so as to penetrate the liquid phases L1, L2. The gas outlet 133 from the sampling branch 13 is connected to the inlet 901 of the propulsion device 9 to deliver fuel thereto.
The sampling branch 13 comprises a compression member 15 to supply fuel to the propulsion means under sufficient pressure. The sampling branch 13 may include a heater-cooler 17 to bring the fuel to a suitable temperature. The fuel is in the gaseous state at the gas outlet 133 of the sampling branch 13. In case the cryogenic liquid comprising methane is liquefied natural gas, the propulsion device 9 will be supplied with liquefied natural gas LC1 in gaseous form. If the cryogenic liquid comprising methane is a mixture of liquid methane and an alkane having at least two carbon atoms and being in the liquid state, in particular at atmospheric pressure, the propulsion device 9 will be supplied with the mixture LC2 in gaseous form. The alkane having at least two carbon atoms may be selected from ethane, propane, butane, and at least one mixture thereof.
The sampling branch 13 may comprise at least one sampling valve 19 in order to control the penetration of the liquid phases L1, L2 of the cryogenic liquids LC1, LC2 contained in the at least one tank 3, 5. In other words, the sampling valve 19 makes it possible to allow penetration, inhibit penetration and/or adjust the penetration flow rate of the liquid phases L1, L2 of the cryogenic liquids LC1, LC2. The sampling valve 19 is arranged between the inlet 131 of the sampling branch 13 and the inlet of the heater-cooler 17. The sampling valve 19 may be a three-way valve or two valves as shown in fig. 1.
In the embodiment shown in fig. 1, the sampling branch 13 comprises several liquid inlets 131, each liquid inlet 131 being immersed in the liquid phase L1, L2 of the cryogenic liquid LC1, LC2 of a different tank 3, 5. The sampling branch 13 further comprises several sampling valves 19, which sampling valves 19 are arranged to enable also the selection of a tank for the penetration of the liquid phases L1, L2 of the cryogenic liquids LC1, LC2. The plurality of sampling valves 19 may also allow to regulate the flow rate of the liquid phase L2, L1 being permeated.
The sampling branch 13 may comprise at least one pump 135 immersed in the liquid phases L1, L2 of the cryogenic liquids LC1, LC2 in order to penetrate the liquid phases L1, L2 of the cryogenic liquids LC1, LC2. A pump 135 is arranged at the liquid inlet 131 of the sampling branch 13.
Referring to fig. 1, the structure 70 comprises at least one fuel consumer 7, the fuel being prepared from a gas contained in the tank(s) 3,5 of the structure, the gas being a gaseous phase G1G 2 resulting from the vaporization of the cryogenic liquid LC1, LC2 stored and/or transported in the tank(s) 3,5 of the structure.
As an example, said at least one consumer 7 may be a generator of the DFDE (dual fuel diesel generation) type, that is to say a gas consumer configured to ensure the electrical supply of the structure 70. It will be appreciated that this is merely an exemplary embodiment of the invention and that different gas consumer installations may be provided without departing from the invention.
The arrangement 70 comprises a supply system 1 for supplying fuel to a consumer 7. The supply system 1 includes: at least one gas inlet 101 in fluid communication with at least one gas outlet 303, 503 from the tank(s) 3,5 of the structure 70; and a gas outlet 103 in fluid communication with at least one fuel inlet 701 of the consumer 7.
The supply system 1 comprises a fuel preparation system 45, at least one gas outlet 453 of which is connected to the consumer 7 for delivering fuel and to a supply branch 21, the supply branch 21 being configured to bring at least a portion of the gases G1, G2 from the tanks 3,5 to an inlet 451 of the preparation system 45.
The supply system 1 comprises a heat exchanger 23, the heat exchanger 23 comprising a first channel 25 constituting the supply branch 21. The first channel 25 is provided at the at least one gas inlet 211 of the supply branch 21. The gas inlet 211 of the supply branch 21 forms part of the gas inlet 101 of the supply system 1. The gas inlet 211 of the supply branch 21 is thus connected via a conduit to the gas outlet 303, 503 of at least one of the tanks 3,5 of the structure 70.
In the embodiment shown in fig. 1, the supply branch 21 comprises a plurality of gas inlets 211, which form part of the plurality of gas inlets 101 of the supply system 1. The gas inlets 211 of the supply branches 21 are each connected to a gas outlet 303, 503 of a tank 3,5 of the structure 70.
The supply system 1 comprises a bypass branch 29 of the first channel 25 of the heat exchanger 23. The bypass branch 29 connects the inlet 251 of the first passage 25 with the outlet 253 of the first passage 25. The bypass branch 29 is thus installed in parallel with the first channel 25 of the heat exchanger 23.
Referring to fig. 1, the heat exchanger 23 includes a second passage 27 constituting the supply branch 21. The second channel 27 is connected to the first channel 25 through the connecting portion 215 of the supply branch 21. In other words, the outlet of the first passage 253 is connected to the inlet of the second passage 271 through the connecting portion 215 of the supply branch 21.
The second passage 27 of the heat exchanger 23 is configured to exchange heat with the first passage 25 of the heat exchanger 23.
The connecting portion 215 of the supply branch 21 comprises at least one compression device 31, which compression device 31 is configured to increase the pressure of the fluid flowing in the connecting portion 215 of the supply branch 21. Thus, the compression device is arranged between the outlet 253 of the first channel 25 and the inlet 271 of the second channel 27.
The supply system 1 comprises a thermal heat exchanger 37, the thermal heat exchanger 37 comprising a first channel 39 constituting the supply branch 21. The first channel 39 of the thermal heat exchanger 37 is arranged between the outlet 273 of the second channel 27 of the heat exchanger 23 and the inlet 451 of the preparation system 45.
With reference to fig. 1, the supply system 1 comprises a cooling branch 33, which cooling branch 33 is configured to be passed by a portion of the liquid phase L1, L2 of the cryogenic liquid LC1, LC2 contained in at least one tank 3,5 of the structure 70. Therefore, a part of the liquid phase L1 of the liquefied natural gas LC1 or a part of the liquid phase L2 of the mixture LC2 can flow into the cooling branch 33.
More specifically, the liquid inlet 331 of the cooling branch 33 is immersed in the liquid phase L1, L2 of the cryogenic liquid LC1, LC2 contained in the tank(s) 3,5 of the structure 70. The liquid inlet 331 of the cooling branch 33 is part of the liquid inlet 105 of the supply system 1. In the embodiment shown in fig. 1, the cooling branch 33 comprises a plurality of liquid inlets 331, each liquid inlet 331 being immersed in a tank 3,5 different from the structure 70.
In fig. 1, the liquid inlet 331 of the sampling branch 33 is optionally provided with at least one pump 335 immersed in the liquid phases L1, L2 of the cryogenic liquids LC1, LC2 for facilitating penetration of the liquid phases L1, L2 of the cryogenic liquids LC1, LC2.
In an embodiment not shown, the cooling branch 33 comprises a plurality of penetration valves in order to inhibit, allow and control the sampling of the liquid phase from the tank of the structure.
The thermal heat exchanger 37 comprises a second channel 41 constituting the cooling branch 33. The cooling branch 33 therefore comprises a second channel 41 of the thermal heat exchanger 37. The second channel 41 of the thermal heat exchanger 37 is configured to exchange heat with the first channel 39 of the thermal heat exchanger 37 in order to at least partially liquefy the gas circulating in the first channel 39 of the thermal heat exchanger 37.
The outlet 413 of the second channel 41 of the thermal heat exchanger 37 is connected to the liquid outlet 333 of the cooling branch 33. The liquid outlet 333 of the cooling branch 33 is connected to the spraying device 58 arranged inside the tank 3, 5. The spraying device 58 is arranged to be located above the liquid phase contained in the tanks 3, 5. The spray device 58 allows the liquid from the second channel 41 of the thermal heat exchanger 37 to disperse in the form of droplets.
In the embodiment of fig. 1, the outlet 413 of the second channel 41 of the thermal heat exchanger 37 is connected to a plurality of liquid outlets 333 of the cooling branch 33, each liquid outlet 333 being connected to the injection device 58 contained in the tank 3, 5.
The outlet 413 of the second channel 41 of the thermal heat exchanger 37 is also connected to the discharge conduit 57 by means of the connecting conduit 56. The discharge duct 57 will be described below.
The supply system 1 comprises a distribution device 64, which distribution device 64 is configured to allow or inhibit the passage of fluid towards the injection device(s) 58 and/or towards the discharge conduit 57.
The distribution device 64 comprises a plurality of control devices 641, 643. The first control device 643 is disposed on the connecting duct 56. The first control device 643 is, for example, a check valve.
The second control means 641 is arranged on the cooling branch 33 between the junction of the cooling branch 33 with the connecting duct 56 and the injection means 58. The second control device 641 is, for example, a check valve.
The cooling branch 33 comprises a cooling device 35 arranged between the liquid inlet 105 of the supply system 1 and the inlet 411 of the second channel 41 of the thermal heat exchanger 37. In other words, the cooling device 35 is arranged between the liquid inlet 331 of the cooling branch 33 and the inlet 411 of the second channel 41 of the thermal heat exchanger 37.
The cooling device 35 is configured to cool the liquid phase portions L1, L2 of the low-temperature liquids LC1, LC2 circulating in the cooling branch 33. For example, the cooling device 35 may alternately cool a portion of the liquid phase L1 of the liquefied natural gas LC1 and a portion of the liquid phase L2 of the mixture LC2.
The supply system 1 comprises a bypass branch 43 of the second channel 41 of the thermal heat exchanger 37. The bypass branch 43 connects the inlet 411 of the second channel 41 of the thermal heat exchanger 37 to the outlet 413 of the second channel 41 of the thermal heat exchanger 37. In other words, the bypass branch 43 is installed in parallel with the second channel 41 of the thermal heat exchanger.
The supply system 1 comprises a connection passage 330 from the inlet 411 of the second channel 41 of the thermal heat exchanger 37 to a connection point PR0 of the cooling branch 33. The connection point PR0 is arranged on the cooling branch 33 between the second control means 641 of the distribution means 64 and the injection means 58.
Referring to FIG. 1, the fuel preparation system 45 includes a first phase separator 47, a second phase separator 55, and an expansion device 53.
The first phase separator 47 includes an inlet 471 that is connected to the outlet 393 of the first channel 39 of the thermal heat exchanger 37. It will be appreciated that in this case, inlet 471 of first phase separator 47 is part of inlet 451 of preparation system 45.
The first phase separator 47 comprises a gas outlet 473, which forms part of the gas outlet 103 of the supply system 1. The gas outlet 473 of the first phase separator 47 is connected to the fuel inlet 701 of the consumer 7 to deliver fuel. The connection between the gas outlet 473 of the first phase separator 47 and the consumer 7 is ensured by a connecting conduit 49.
It will thus be appreciated that the connecting duct 49 also ensures the connection between the gas outlet 103 of the supply system 1 and the fuel inlet 701 of the consumer 7. It should also be understood that the gas outlet 473 of the first phase separator 47 is part of the gas outlet 453 of the preparation system 45, which gas outlet 453 in turn is part of the gas outlet 103 of the supply system 1.
The first phase separator 47 comprises a liquid outlet 475 which is connected to an inlet 551 of the second phase separator 55 by means of a line 51. An expansion device 53 is disposed on line 51. The line 51 may be a conduit, for example.
The second phase separator 55 comprises a gas outlet 553, which gas outlet 553 is connected to the junction PJ of the supply branch 21 by means of a conduit 59. The junction point PJ is arranged between the gas outlet 303, 503 of at least one of the tanks 3,5 of the structure 70 and the inlet 311 of the compression device 31. In the embodiment shown in fig. 1, the junction is provided on the connecting portion 211 of the supply branch 21.
The second phase separator 55 includes a liquid outlet 555 in fluid communication with the tank(s) 3,5 of the structure 70. In other words, the liquid outlet 555 of the second phase separator 55 is connected inside at least one tank 3,5 through the discharge conduit 57. One end of the discharge conduit 57 is immersed in the liquid phases L1, L2 of the cryogenic liquids LC1, LC2 stored and/or transported in the tanks 3, 5. In the example shown in fig. 1, the discharge conduit 57 includes a plurality of ends, each end being immersed in the liquid phases L1, L2 of the cryogenic liquids LC1, LC2.
Referring to fig. 1, the supply system 1 comprises a bypass branch 61 having at least the preparation system 45. In the embodiment shown in fig. 1, the bypass branch 61 also makes it possible to bypass the heat exchanger 23 and the thermal heat exchanger 37.
The bypass branch 61 is arranged between the outlet 313 of the compression device 31 and the gas outlet 453 of the preparation system 45. In other words, the bypass branch 61 connects the outlet 313 of the compression device 31 and the gas outlet 453 of the preparation system 45. In the embodiment shown in fig. 1, the compression device 31 comprises a plurality of compression stages 315.
The supply system 1 comprises a fuel heater-cooler 65 arranged between the gas outlet 453 of the preparation system 45 and the gas outlet 103 of the supply system 1 connected to the fuel inlet 701 of the consumer 7. It will thus be appreciated that in the embodiment of fig. 1, the heater-cooler 65 is disposed on the connecting conduit 49 between the gas outlet 453 of the preparation system 45 and the fuel inlet 701 of the consumer 7.
The supply system 1 comprises a switching device 69 configured to alternate between a first configuration and a second configuration of the supply system 1.
The switching means 69 comprises first regulating means 231, 233, 235, the first regulating means 231, 233, 235 being arranged to control the gas flow in the first passage 25 or in the bypass branch 29 of the heat exchanger 23. Thus, the first regulating device 231, 233, 235 allows, inhibits and/or regulates the passage of fluid in at least a part of the supply system 1.
In the example shown in fig. 1, the first regulating means 231, 233, 235 comprise a plurality of non-return valves. The first check valve 231 is arranged at the inlet 251 of the first passage 25 of the heat exchanger 23, the second check valve 233 is arranged at the outlet 253 of the first passage 25 of the heat exchanger 23, and the third check valve 235 is arranged in the bypass branch 29. These one-way valves 231, 233, 235 will make it possible to allow or inhibit the passage of fluid in the first passage 25 and/or the bypass branch 29 of the heat exchanger 23. In other words, the check valves 231, 233, 235 are configured to assume an open position, a semi-open position to regulate flow, or a closed position.
In an embodiment not shown, the first regulation means comprise a two-way valve arranged at the junction between the supply branch and the bypass branch.
The switching device 69 comprises second regulating means 371, 373, 375, 377, the second regulating means 371, 373, 375, 377 being arranged to control the liquid circulation in the second channel 41 of the thermal heat exchanger 37 or in the bypass branch 43 or in the connecting channel 330. Thus, the second regulating device 371, 373, 375, 377 allows, inhibits and/or regulates a passage of a fluid in at least a part of the supply system 1.
In the example shown in FIG. 1, the second regulating device 371, 373, 375, 377 includes a plurality of one-way valves. A first check valve 371 is arranged at the inlet 411 of the second channel 41 of the thermal heat exchanger 37, a second check valve 373 is arranged at the outlet 413 of the second channel 41 of the thermal heat exchanger 37, a third check valve 375 is arranged in the bypass branch 43, and a fourth check valve 377 is arranged in the connection passage 330. The non-return valve of the second regulating device 371, 373, 375, 377 will make it possible to allow or prohibit the passage of fluid in the first channel 25 of the thermal heat exchanger 37 and/or in the bypass branch 43 and/or in the connecting passage 330. In other words, the one-way valve of the second regulating device 371, 373, 375, 377 is configured to assume an open position, a semi-open position to regulate the flow or a closed position.
In an embodiment not shown, the second regulating means comprise a two-way valve arranged at the junction between the cooling branch and the bypass branch.
The switching means 69 comprise third regulating means 611, 613, 615, which third regulating means 611, 613, 615 are arranged to control the liquid circulation in the second channel 27 of the heat exchanger 23 or in the bypass branch 61. Thus, the third regulation means 611, 613, 615 allow, inhibit and/or regulate the passage of fluid in at least a part of the supply system 1.
In the example shown in fig. 1, the third regulation means 611, 613, 615 comprise a plurality of one-way valves. The first one-way valve 611 is arranged at the inlet 271 of the second channel 27 of the heat exchanger 23, the second one-way valve 613 is arranged on the bypass branch 61, and the third one-way valve 615 is arranged at the gas outlet 453 of the preparation system 45. The one-way valves of the third regulation means 611, 613, 615 will allow or prohibit the passage of fluid in the second passage 27 and/or the bypass branch 61 of the heat exchanger 23. In other words, the one-way valves of the third regulation means 611, 613, 615 are configured to assume an open position, a half-open position regulating the flow or a closed position.
In an embodiment not shown, the third adjustment means comprise a two-way or three-way valve arranged at the junction between the supply branch and the bypass branch and at the junction between the bypass branch and the connecting conduit.
Fig. 2 is a diagrammatic view of the supply system 1 in a first configuration. Tanks 3,5 of structure 70 contain cryogenic liquids LC1, LC2 comprising methane. More specifically, the cryogenic liquids LC1, LC2 are liquefied natural gas LC1.
In a first configuration of the supply system 1, the first regulation means 231, 233, 235 allow the passage of fluid in the bypass branch 29 and inhibit the passage of fluid in the first passage 25 of the heat exchanger 23.
The second regulation devices 371, 373, 375, 377 allow the passage of fluid in the bypass branch 43, inhibit the passage of fluid in the second passage 41 of the thermal heat exchanger 37 and inhibit the passage of fluid in the connection passage 330.
Third regulation means 611, 613, 615 allow fluid communication in bypass branch 61. The third regulation means 611, 613, 615 prohibit the passage of fluids in the first channel 39 of the thermal heat exchanger 37, the second channel 27 of the heat exchanger 23 and the preparation system 45.
In this first configuration, the gas G1 generated by the vaporization of the cryogenic liquid LC1 in the form of liquid L1 contained in the tank(s) 3,5 of the structure 70 is taken from one of the tanks 3,5 by the supply branch 21. The gas G1 enters the bypass branch 29.
Then, the gas G1 is compressed by the compression device 31. Therefore, the pressure of the gas G1 at the inlet 311 of the compression device 31 is lower than the pressure of the gas G1 at the outlet 313 of the compression device 31.
The compressed gas G1 flows into the bypass branch 61. Thus, compressing the gas G1 avoids the heat exchanger 23, the thermodynamic heat exchanger 37, and the preparation system 45.
After passing through the bypass branch 61, the compressed gas G1 flows into the connecting branch 49 and through the heater-cooler 65, which heater-cooler 65 raises the temperature of the compressed gas G1 before it is led to the at least one consumer 7. The compressed gas G1 cannot enter the first phase separator 47 because the third one-way valve 615 of the third regulating means 611, 613, 615 prevents entry into it.
In parallel, a portion of the cryogenic liquid LC1 in the form of liquid L1 in at least one tank 3,5 of the structure 70 is sampled. The liquid L1 flows in the cooling branch 33, in the cooling device 35 which cools the liquid L1, in the cooling branch 33, in the bypass branch 43 and then again in the cooling branch 33 in sequence.
The distribution device 64 is in a configuration that allows the liquid L1 to flow into the connecting duct 56 and thus to the discharge duct 57, and this configuration prevents the liquid L1 from flowing towards the spraying device 58.
Fig. 3 shows the supply system 1 in a second configuration. Tanks 3,5 of structure 70 contain cryogenic liquids LC1, LC2 comprising methane. More specifically, the cryogenic liquid LC1, LC2 is a mixture L2 of liquid methane and alkanes having at least two carbon atoms and being in the liquid state. The alkane may be selected from ethane, propane, butane and at least one mixture thereof. The content of alkanes having at least two carbon atoms in the mixture L2 is greater than the content of methane in the mixture L2. Thus, the methane index of the mixture is less than 70.
In a first configuration of the supply system 1, the first regulation means 231, 233, 235 allow the passage of fluid in the first passage 25 of the heat exchanger 23 and inhibit the passage of fluid in the bypass branch 29.
The second regulation devices 371, 373, 375, 377 allow the passage of fluid in the second channel 41 of the thermal heat exchanger 37, inhibit the passage of fluid in the bypass branch 43 and inhibit the passage of fluid in the connection passage 330.
The third conditioning means 611, 613, 615 allow the fluid circulation in the first channel 39 of the thermal heat exchanger 37, in the second channel 27 of the heat exchanger 23 and in the preparation system 45. The third regulating means 611, 613, 615 inhibit the passage of fluid in the bypass branch 61.
In this second configuration, the gas G2 resulting from the vaporization of the cryogenic liquid LC2 in the form of liquid L2 contained in the tank(s) 3,5 of the structure 70 is taken from one of the tanks 3,5 through the supply branch 21.
The gas G2 flows in the first passage 25 of the heat exchanger 23 by exchanging heat with the second passage 27 of the heat exchanger 23. At the outlet 253 of the first passage 25 of the heat exchanger 23, the temperature of the gas G2 has increased.
The heated gas G2 is then compressed by the compression device 31. Thus, the gas G2 has a pressure at the outlet 313 of the compression device 31 suitable for entering the preparation system 45. For example, in this embodiment, the pressure at the outlet 313 of the compression device 31 is 6.5 bar. The temperature of the compressed gas G2 is kept substantially the same as the temperature of the gas G2 at the outlet of the first passage 25 of the heat exchanger 23.
Then, the gas G2 flows into the second passage 27 of the heat exchanger 23, and generates heat by exchanging this heat with the first passage 25 of the heat exchanger 23. Therefore, the temperature of the gas G2 decreases at the outlet of the second passage 27 of the heat exchanger 23.
In the heat exchanger 23, the direction of the compressed gas flow G2 in the second passage 27 is opposite to the direction of the gas flow G1 in the first passage 25.
The gas G2 then flows in the first channel 39 of the thermal heat exchanger 37. The gas G2 generates heat again by exchanging heat at the second passage 41 of the thermal heat exchanger 37. The gas G2 is then at least partially liquefied.
At the outlet 393 of the first channel 39 of the thermal heat exchanger 37 there is a mixture of gas and liquid of different composition. The fuel preparation system 45 will allow the fuel to be separated from the mixture.
The mixture passes through a first phase separator 47. The gas phase, which is the fuel of the consumer 7, is separated from the liquid phase of the mixture. The gas phase contained in the first phase separator 47 flows into the connecting branch 49 to be supplied to the consumer through the heater-cooler 65.
The liquid phase of the mixture is sent to the second phase separator 55 through line 51, line 51 connecting the liquid outlet 475 of the first phase separator 47 to the inlet 551 of the second phase separator 55.
Via line 51, the liquid phase of the mixture is expanded by an expansion device 53. A portion of the liquid phase evaporates, producing another mixture of liquid and gas phases that will be decanted in the second phase separator 55.
The liquid phase contained in the second phase separator 55 is returned to at least one of the tanks 3,5 of the structure 70. The gas phase contained in the second phase separator 55 returns to the supply branch 21 at a junction point PJ located between the outlet 253 of the first channel 25 of the heat exchanger 23 and the inlet 311 of the compression device 31.
In parallel, a portion of the cryogenic liquid LC1 in the form of liquid L1 in at least one tank 3,5 of the structure 70 is sampled. The liquid L1 flows into the cooling branch 33 and successively enters the cooling device 35 and the second channel 41 of the thermal heat exchanger 37, eventually being dispersed in one of the tanks 3,5 by the spraying device 58.
Thus, in the embodiment shown in FIG. 3, the dispensing device 64 is in a configuration that prevents the liquid L1 from flowing into the connecting conduit 56 and allows the liquid L1 to flow toward the spray device 58.
The flow of the liquid cryogenic liquid in the second channel 41 of the thermal heat exchanger 37 makes it possible to at least partially liquefy the gas that passes simultaneously in the first channel 39 of the thermal heat exchanger 37.
In the thermal heat exchanger 37, the flow direction of the gas G2 in the first channel 39 is opposite to the flow direction of the liquid G2 in the second channel 41 of the thermal heat exchanger 37.
Referring to fig. 4, a cross-sectional view of a floating structure 70 shows the sealed, insulated tanks 3,5 installed in a double hull 72 of the floating structure 70, which floating structure 70 may be a vessel or a floating platform. The walls of the tanks 3,5 comprise a primary sealing barrier intended to be in contact with the cryogenic liquid contained in the tanks 3,5, a secondary sealing barrier arranged between the primary sealing barrier and the double hull 72 of the vessel, and two heat-insulating barriers arranged between the primary sealing barrier and the secondary sealing barrier and between the secondary sealing barrier and the double hull 72, respectively. In a simplified version, the floating structure 70 comprises a simple hull.
The loading/unloading pipe 73 arranged on the upper deck of the floating structure 70 may be connected to a marine or harbour terminal by means of a suitable connector for transporting the cryogenic liquid cargo out of or to the tanks 3, 5.
Referring to fig. 4, a cross-sectional view of a floating structure 70 shows sealed, thermally insulated tanks 3,5 installed in a double hull 72 of the floating structure 70, which floating structure 70 may be a vessel or a floating platform. The walls of the tanks 3,5 comprise a primary sealing barrier intended to be in contact with the cryogenic liquid contained in the tanks 3,5, a secondary sealing barrier arranged between the primary sealing barrier and the double hull 72 of the vessel, and two heat-insulating barriers arranged between the primary sealing barrier and the secondary sealing barrier and between the secondary sealing barrier and the double hull 72, respectively. In a simplified version, the floating structure 70 comprises a simple hull.
The loading/unloading pipe 73 arranged on the upper deck of the floating structure 70 may be connected to a marine or harbour terminal by means of a suitable connector for transporting the cryogenic liquid cargo out of or to the tanks 3, 5.
Figure 4 shows an example of a marine terminal comprising a loading and/or unloading station 75, a submarine conduit 76 and an onshore facility 77. The loading and/or unloading station 75 is a fixed offshore facility comprising a mobile arm 74 and a tower 78 supporting the mobile arm 74. The moving arm 74 carries a bundle of insulated flexible tubes 79, the tubes 79 being connectable to the loading/unloading duct 73. The transfer arm 74 is adjustable and accommodates all of the floating structure templates 70. A not shown connecting conduit extends inside the tower 78. Loading and/or unloading station 75 allows floating structure 70 to be loaded and/or unloaded from an onshore facility 77 to onshore facility 77. The latter comprises a cryogenic liquid storage tank 80 and a connecting conduit 81, the connecting conduit 81 being connected to the loading and unloading station 75 by means of the submerged conduit 76. The subsea conduit 76 allows cryogenic liquid to be transported over long distances, e.g., 5 kilometers, between the loading or unloading station 75 and the onshore facility 77, which allows the floating structure 70 to remain off shore during loading and/or unloading operations.
In order to generate the pressure required for transporting the cryogenic liquid, pumps on the floating structure 70 and/or pumps mounted on the onshore facility 77 and/or pumps mounted on the loading and unloading station 75 are used.
Examples have been described for floating structures; however, they are also applicable to land-based structures. Furthermore, the invention is not limited to the use of liquefied natural gas or a mixture of liquid methane and alkanes having at least two carbon atoms and being in the liquid state (in particular at atmospheric pressure).
Of course, the invention is not limited to the examples just described, and many modifications can be made to these examples without departing from the scope of the invention.

Claims (12)

1. A supply system (1) for supplying a consumer (7), the consumer being configured to be supplied with fuel prepared from a gas (G1, G2), the gas (G1, G2) resulting from evaporation of a cryogenic liquid (L1, LC1; L2, LC 2) comprising at least methane, the cryogenic liquid (LC 1, LC 2) being stored in at least one tank (3, 5), the supply system (1) comprising: -a fuel preparation system (45) configured to supply at least a portion of the gas from the tank (3, 5) to a supply branch (21) of the preparation system (45), -a thermodynamic heat exchanger (37) comprising at least two channels (39, 41), wherein a first channel (39) constitutes the supply branch (21), -the supply branch (21) comprises at least one compression device (31) arranged before an inlet (391) of the first channel (39), -the supply system (1) comprises a cooling branch (33) configured to be passed through by the cryogenic liquid (L1, LC1; L2, LC 2), -the cooling branch (33) comprises a second channel (41) of the heat exchanger (37), -the second channel (41) is configured to exchange heat with the first channel (39) in order to at least partially liquefy the gas (G1, G2) circulating in the first channel (39), characterized in that the preparation system (45) is arranged after an outlet (39) of the first channel (39) and comprises a phase separator (47) connected to a phase separator (47) and a phase separator (55) arranged on an inlet (475) of the first channel (47), the inlet (471) of the first phase separator is connected to the outlet (393) of the first channel (39), the at least one gas outlet (473) of the first phase separator (47) is connected to the consumer (7) for delivering fuel, and the supply system (1) is configured to fluidly communicate the liquid outlet (555) of the second phase separator (55) with at least one tank (3, 7).
2. Supply system (1) according to claim 1, comprising a bypass branch (61) having at least a phase separator (47, 55), the bypass branch (61) being arranged between the outlet (313) of the compression device (31) and the gas outlet (473) of the first phase separator (47).
3. Supply system according to any one of the preceding claims, wherein a gas outlet (553) of the second phase separator (55) is arranged in connection with a junction Point (PJ) of the supply branch (21) between a gas outlet (303, 503) of the tank (3, 5) and an inlet (311) of the compression device (31).
4. Supply system (1) according to any one of the preceding claims, comprising a heat exchanger (23) configured to exchange heat between a gas (G1, G2) resulting from evaporation before the cryogenic liquid (L1, LC1; L2, LC 2) is compressed by the compression device (31) and the gas compressed by the compression device (31).
5. Supply system (1) according to claim 4 in combination with claim 3, wherein the heat exchanger (23) comprises a first channel (25) arranged between a gas inlet (101) of the supply system (1) intended to be connected to the outlet of the tank (303, 503) and the junction Point (PJ), and a second channel (27) arranged between the outlet (313) of the compression device (31) and the inlet (391) of the first channel (39) of the heat exchanger (37).
6. Supply system (1) according to any one of the preceding claims, wherein the cooling branch (33) comprises a cooling device (35) arranged between the liquid inlet (105) of the cooling branch (33) and the inlet (411) of the second channel (41) of the heat exchanger (37) to cool the cryogenic liquid (L1, LC1; L2, LC 2).
7. The supply system (1) according to any one of the preceding claims, comprising a heater-cooler (65) arranged between a gas outlet (453) of the preparation system (45) and a gas outlet (103) of the supply system (1) connected to a fuel inlet (701) of the consumer (7).
8. Supply system (1) according to any one of the preceding claims, wherein the cryogenic liquid (LC 1, LC 2) comprising methane is liquefied natural gas (LC 1) or a mixture (LC 2) of liquid methane and an alkane having at least two carbon atoms and being in the liquid state.
9. A structure (70) for transporting and/or storing a cryogenic liquid (LC 1, LC 2) comprising methane, the structure (70) comprising at least one tank (3, 5) containing the cryogenic liquid (LC 1, LC 2), the structure (70) comprising: at least one consumer (7) consuming a fuel prepared from a gas (G1, G2) resulting from the evaporation of the cryogenic liquid (L1, LC1; L2, LC 2); and at least one supply system (1) according to any one of the preceding claims, the supply system (1) comprising at least one conduit (49) connecting the gas outlet (473) of the first separator (47) to the consumer (7).
10. A delivery system for a cryogenic liquid comprising methane, the system comprising: a structure (70) according to claim 10; insulated piping (73, 79, 76, 81) arranged to connect tanks (3, 5) installed in the structure (70) to a floating or onshore storage facility (77); and a pump for driving cryogenic liquid through the insulated conduit from a floating or onshore storage facility (77) to the tank (3, 5) of the structure (70) or from the tank (3, 5) of the structure (70) to a floating or onshore storage facility (77).
11. A method for loading or unloading a floating structure (70) according to claim 10, wherein cryogenic liquid is transferred from a floating or onshore storage facility (77) to a tank (3, 5) of the floating structure (70) or from a tank (3, 5) of the floating structure (70) to a floating or onshore storage facility (77) by means of insulated pipelines (73, 79, 76, 81).
12. A method for preparing a fuel from a gas resulting from the evaporation of a cryogenic liquid containing at least methane and stored in at least one tank (3, 5) by means of a supply system (1) according to any one of claims 1 to 9, the method comprising the steps of compressing the gas by means of a compression device (31), exchanging heat between the compressed gas and the cooled cryogenic liquid in a thermodynamic heat exchanger (37) for at least partially liquefying the compressed gas, separating a liquid phase and a gaseous phase of the at least partially liquefied gas, and supplying the gaseous phase as fuel to a consumer (7).
CN202210486276.XA 2021-05-07 2022-05-06 System for supplying consumers Pending CN115307056A (en)

Applications Claiming Priority (2)

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FR2104876 2021-05-07
FR2104876A FR3122706B1 (en) 2021-05-07 2021-05-07 Supply system for a consumer configured to be supplied with a fuel prepared from a gas resulting from the evaporation of a cryogenic liquid comprising at least methane

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FR3122706A1 (en) 2022-11-11
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