Classifications

• • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
  • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
  • F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
  • F25J3/00—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification
  • F25J3/02—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream
  • F25J3/0228—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream characterised by the separated product stream
  • F25J3/0266—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream characterised by the separated product stream separation of carbon dioxide
• • 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
  • F25J3/00—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification
  • F25J3/02—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream
  • F25J3/0204—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream characterised by the feed stream
  • F25J3/0223—H2/CO mixtures, i.e. synthesis gas; Water gas or shifted synthesis gas
• • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
  • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
  • F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
  • F25J2200/00—Processes or apparatus using separation by rectification
  • F25J2200/02—Processes or apparatus using separation by rectification in a single pressure main column 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
  • F25J2200/00—Processes or apparatus using separation by rectification
  • F25J2200/40—Features relating to the provision of boil-up in the bottom of a column
• • 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
  • F25J2200/00—Processes or apparatus using separation by rectification
  • F25J2200/70—Refluxing the column with a condensed part of the feed stream, i.e. fractionator top is stripped or self-rectified
• • 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
  • F25J2205/00—Processes or apparatus using other separation and/or other processing means
  • F25J2205/02—Processes or apparatus using other separation and/or other processing means using simple phase separation in a vessel or drum
  • F25J2205/04—Processes or apparatus using other separation and/or other processing means using simple phase separation in a vessel or drum in the feed line, i.e. upstream of the fractionation step
• • 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
  • F25J2210/00—Processes characterised by the type or other details of the feed stream
  • F25J2210/04—Mixing or blending of fluids with the feed 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
  • F25J2210/00—Processes characterised by the type or other details of the feed stream
  • F25J2210/70—Flue or combustion exhaust gas
• • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
  • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
  • F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
  • F25J2220/00—Processes or apparatus involving steps for the removal of impurities
  • F25J2220/80—Separating impurities from carbon dioxide, e.g. H2O or water-soluble contaminants
  • F25J2220/82—Separating low boiling, i.e. more volatile components, e.g. He, H2, CO, Air gases, CH4
• • 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
  • 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
  • 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
  • F25J2235/02—Processes or apparatus involving steps for increasing the pressure or for conveying of liquid process streams using a pump in general or hydrostatic pressure increase
• • 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
  • F25J2235/80—Processes or apparatus involving steps for increasing the pressure or for conveying of liquid process streams the fluid being carbon dioxide
• • 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
  • F25J2240/00—Processes or apparatus involving steps for expanding of process streams
  • F25J2240/90—Hot gas waste turbine of an indirect heated gas for power generation
• • 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
  • F25J2270/00—Refrigeration techniques used
  • F25J2270/02—Internal refrigeration with liquid vaporising 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
  • F25J2270/00—Refrigeration techniques used
  • F25J2270/80—Quasi-closed internal or closed external carbon dioxide refrigeration 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
  • F25J2290/00—Other details not covered by groups F25J2200/00 - F25J2280/00
  • F25J2290/34—Details about subcooling of liquids
• • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
  • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
  • Y02C—CAPTURE, STORAGE, SEQUESTRATION OR DISPOSAL OF GREENHOUSE GASES [GHG]
  • Y02C20/00—Capture or disposal of greenhouse gases
  • Y02C20/40—Capture or disposal of greenhouse gases of CO2

Definitions

• the present invention relates to a method and apparatus for separating a mixture containing carbon dioxide by cryogenic distillation.
• it relates to the purification of a liquid mixture of CO 2 and dissolved impurities by cryogenic distillation, the bottom liquid of the distillation column being reboiled and superheated.
• the purification of liquid CO 2 containing more volatile dissolved impurities is mainly by cryogenic distillation. To do this, it feeds the liquid CO 2 distillation column and vaporizes a portion of the liquid in the bottom of the column to generate the steam that will go against the current of the liquid throughout the column.
• a reboiler is most often used: a hot fluid will warm the liquid up to its boiling point to generate the vapor at a temperature as close as possible to its liquid / vapor equilibrium temperature to improve distillation at the bottom of the column.
• the nature of the hot fluid can be various: a utility (liquid water or steam, electricity ...) a fluid of the process ... Indeed, the heat exchange in the reboiler allows to cool the hot fluid. We can therefore value the cold exchanged.
• the gas to be purified In the case of a cryogenic separation of CO 2 (partial condensation, solidification, permeation, etc.), the gas to be purified must be cooled to enrich CO 2 production. This gas can therefore be cooled against the liquid of the column vessel to be distilled in the reboiler. Since the gas must often be cooled to lower temperatures than the column vessel, it will continue to be cooled in another exchanger against another cold fluid, as seen in EP-A-1953486.
• US-A-201 1/029867 illustrates only in the figures a pipe for sending liquid tank from the carbon dioxide distillation column to a heat exchanger where the mixture to be cooled is cooled.
• a pipe also allows the return of a fluid to the column but the document does not specify in what state this fluid is.
• Percentages for purity in this text are molar percentages.
• a method for separating at least one lighter impurity from a gaseous mixture containing at least 30 mol% of carbon dioxide in which:
• the gaseous mixture is cooled in a heat exchanger, entering the heat exchanger at the hot end thereof, and then separated by means comprising a distillation column, the gaseous mixture or a fluid derived from the gaseous mixture , this fluid containing at least 60% of carbon dioxide, being sent to the distillation column,
• At least a portion of the carbon dioxide enriched liquid is sent into the exchanger characterized in that the at least a portion of the liquid sent to the exchanger is vaporized and then heated to a first temperature above its temperature d boiling in the exchanger and exiting the exchanger at the hot end thereof, and at least a portion of the vaporized and heated liquid is sent from the hot end of the exchanger to the first temperature, without being cooled in the exchanger and without being compressed, to the lower part of the distillation column, where it participates in the distillation by enriching itself with at least one light impurity.
• the gas mixture may contain at least 40%, at least 45% or at least 60% carbon dioxide.
• the first temperature may be at least 5 ° C higher than the boiling temperature.
• the first temperature may be greater than 0 ° C or greater than
• the gaseous mixture can enter the heat exchanger at the hot end thereof at a temperature between 2 and 10 ° C higher than the first temperature.
• the vaporized tank liquid in the exchanger can be divided into two, one part being returned to the column at the first temperature and the other part constituting at least a part of a final product. This simplifies the structure of the exchanger since a passage is used to transport a single fluid that will have two different purposes.
• an apparatus for separating at least one lighter impurity from a gaseous mixture containing at least 30 mol% of carbon dioxide comprising a heat exchanger having a first end and a second end, separation means comprising at least one distillation column, a first conduit for sending the gaseous mixture to cool in the heat exchanger connected to the first end of the heat exchanger to allow the entry of the gaseous mixture a second conduit for feeding the cooled gaseous mixture from the heat exchanger of the second end to the separation means, a third conduit for feeding the gaseous mixture or fluid derived from the gaseous mixture to the distillation column or one of the columns of distillation, a fourth pipe for withdrawing a carbon dioxide-enriched liquid in the bottom of the column connected to the reactor heat exchanger to allow the heating of at least a portion of the withdrawn liquid, a fifth pipe for withdrawing a carbon dioxide depleted gas and enriched in at least one lighter impurity at the column head connected to the heat exchanger for allow the reheat
• the apparatus may include a seventh line connected to the first point of the first end of the exchanger to exit the vapor resulting from the vaporization of the apparatus as the final product.
• a seventh line connected to the first point of the first end of the exchanger to exit the vapor resulting from the vaporization of the apparatus as the final product.
• the apparatus does not include a heat exchanger in the column vessel.
• the apparatus does not include means for reducing the vapor pressure in the sixth conduit between the first point of the exchanger and the column.
• the apparatus does not comprise means for compressing the vapor resulting from the vaporization.
• the steam is produced at the pressure of the column vessel.
• a gaseous mixture 1 containing at least 30% or even at least 45% of carbon dioxide and at least one light impurity, which may be oxygen, carbon monoxide, nitrogen, argon, hydrogen, methane or at least two of these constituents are separated to form a fluid richer in carbon dioxide.
• the gaseous mixture comes from a source 100 which may be an oxy-fuel combustion unit followed by purification units to remove water and other contaminants, such as dust, SOx, ⁇ .
• the gaseous mixture is compressed as required, for example at a pressure above 6 bar abs.
• the gas mixture 1 under pressure is cooled in a heat exchanger 43 with brazed aluminum plates or tubes.
• the cooled gas mixture is, if necessary, treated in a treatment means, for example a separation means 1 13.
• This separation means 1 13 may constitute a phase separator or several phase separators in series to increase the dioxide content carbon of the gaseous mixture upstream of the column 25, for example to achieve at least 80% carbon dioxide for the liquid of a phase separator.
• the separating means 11 may alternatively or additionally comprise adsorbent beds and / or a distillation column, for example a column for removing NOx.
• the liquid 1 1 enriched in carbon dioxide is sent to the top of the separation column at low temperature 10.
• the overhead gas is withdrawn in column head and is enriched in light components with respect to the liquid 1 1.
• a portion 106 of the gas is discharged into the atmosphere and the remainder 6 is heated in the exchanger 43.
• the trough liquid 101 contains more than 90% carbon dioxide and is separated into two parts.
• a portion 31 is expanded in a valve 39 and vaporizes in the heat exchanger to form a gaseous product rich in carbon dioxide.
• the remainder 27 is sent to an intermediate level of the heat exchanger 43, vaporizes and is heated to the hot end of the exchanger at a first temperature.
• the vaporized flow exits the heat exchanger at the hot end at the first temperature and is then divided in two, a portion 23 serving as a product and the remainder 31 being returned to the column 25.
• the gas 31 is neither compressed nor relaxed between the hot end and the column 25.
• the gas 31 at the first temperature is returned to the bottom of the column 25, without having been heated or cooled, in or out of the exchanger 43, and goes up in the column 25. enriching with light impurities.
• the inlet for the flow 27 serves to vaporize liquid to produce frigories for the process and to produce the reboil gas.
• a wet gas 1 containing carbon dioxide and oxygen oxide on carbon dioxide is compressed in a compressor 3.
• This compressor 3 comprises four stages 3A, 3B, 3C, 3D, each being monitored. by a cooling means 5A, 5B, 5C, 5D.
• the gas 1 is cooled by the cooler 5 E to form the gas 7 and sent to a purification unit 9 to remove the moisture.
• the dry gas formed 1 1 is cooled in a first exchanger 43 where it cools and is partially condensed.
• the partially condensed gas is sent to a phase separator 13.
• the liquid of the phase separator 13 is sent to a valve 21 to form the liquid 23 and gas generated by the expansion which feed the distillation column 25 at the head.
• a gas enriched with oxygen and / or nitrogen 6 is withdrawn from the top of the column and sent upstream of the cooler 5D. Alternatively it can be returned to the oxy-fuel unit from which gas 1 comes.
• the remainder of the tank liquid 29 is not heated in the exchanger but is subcooled in the subcooler 63 and then mixed with a cycle fluid 51.
• the subcooling can also be done in the exchanger 43.
• the formed mixture 31 is divided into three parts. Part 37 is expanded by valve 41 at a low pressure and sent to a phase separator.
• the phase separator gas is heated in the first exchanger and the phase separator liquid is vaporized in the first exchanger 43 and then the gas and the vaporized liquid are compressed in a compressor 47.
• the portion 35 is expanded by the valve 39 at medium pressure, vaporized in the first exchanger 43 and then compressed by a compressor 45.
• the mixture 49 thus formed by mixing the gas 61 and the compressed gases in the compressors 45, 47 is compressed in a compressor 51, condensed and then divided into two.
• a portion 56 is pressurized by a pump 53 to form a liquid product.
• the remainder 55 cools in the first exchanger 43, is expanded in the valve 57 and mixed with the flow 29 to be returned to the first exchanger 43 in the refrigeration cycle.
• the gas 15 of the phase separator 13 is heated in the first exchanger 43 to form a flow 17 which is heated by the heaters 5F, 5G and expanded by two turbines 19F, 19G in series to form the expanded flow 19.

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• Engineering & Computer Science (AREA)
• Physics & Mathematics (AREA)
• Mechanical Engineering (AREA)
• Thermal Sciences (AREA)
• General Engineering & Computer Science (AREA)
• Chemical & Material Sciences (AREA)
• Chemical Kinetics & Catalysis (AREA)
• Separation By Low-Temperature Treatments (AREA)
• Carbon And Carbon Compounds (AREA)
• Gas Separation By Absorption (AREA)

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• 2012
  • 2012-09-25 FR FR1258999A patent/FR2995985A1/fr active Pending
• 2013
  • 2013-09-24 CN CN201380049553.XA patent/CN104662384B/zh not_active Expired - Fee Related
  • 2013-09-24 CA CA2885677A patent/CA2885677A1/fr active Pending
  • 2013-09-24 US US14/431,219 patent/US9851142B2/en not_active Expired - Fee Related
  • 2013-09-24 EP EP13782750.7A patent/EP2901094A1/de not_active Withdrawn
  • 2013-09-24 WO PCT/FR2013/052237 patent/WO2014049259A1/fr not_active Ceased
  • 2013-09-24 AU AU2013322411A patent/AU2013322411A1/en not_active Abandoned

Non-Patent Citations (2)

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