WO2017051021A1 - Procédé pour refroidir, liquéfier ou traiter un gaz et mélange réfrigérant correspondant - Google Patents

Procédé pour refroidir, liquéfier ou traiter un gaz et mélange réfrigérant correspondant Download PDF

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Publication number
WO2017051021A1
WO2017051021A1 PCT/EP2016/072778 EP2016072778W WO2017051021A1 WO 2017051021 A1 WO2017051021 A1 WO 2017051021A1 EP 2016072778 W EP2016072778 W EP 2016072778W WO 2017051021 A1 WO2017051021 A1 WO 2017051021A1
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Prior art keywords
mol
refrigerant mixture
refrigerant
mixture
azeotropic
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PCT/EP2016/072778
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English (en)
Inventor
Christoph Windmeier
Original Assignee
Linde Aktiengesellschaft
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Publication of WO2017051021A1 publication Critical patent/WO2017051021A1/fr

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    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
    • C09K5/00—Heat-transfer, heat-exchange or heat-storage materials, e.g. refrigerants; Materials for the production of heat or cold by chemical reactions other than by combustion
    • C09K5/02—Materials undergoing a change of physical state when used
    • C09K5/04—Materials undergoing a change of physical state when used the change of state being from liquid to vapour or vice versa
    • C09K5/041—Materials undergoing a change of physical state when used the change of state being from liquid to vapour or vice versa for compression-type refrigeration systems
    • C09K5/042—Materials undergoing a change of physical state when used the change of state being from liquid to vapour or vice versa for compression-type refrigeration systems comprising compounds containing carbon and hydrogen only
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
    • C09K5/00—Heat-transfer, heat-exchange or heat-storage materials, e.g. refrigerants; Materials for the production of heat or cold by chemical reactions other than by combustion
    • C09K5/02—Materials undergoing a change of physical state when used
    • C09K5/04—Materials undergoing a change of physical state when used the change of state being from liquid to vapour or vice versa
    • C09K5/041—Materials undergoing a change of physical state when used the change of state being from liquid to vapour or vice versa for compression-type refrigeration systems
    • C09K5/044—Materials undergoing a change of physical state when used the change of state being from liquid to vapour or vice versa for compression-type refrigeration systems comprising halogenated compounds
    • C09K5/045—Materials undergoing a change of physical state when used the change of state being from liquid to vapour or vice versa for compression-type refrigeration systems comprising halogenated compounds containing only fluorine as halogen
    • 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
    • F25J1/0012—Primary atmospheric gases, e.g. air
    • 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
    • F25J1/0012—Primary atmospheric gases, e.g. air
    • F25J1/0015—Nitrogen
    • 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
    • F25J1/0012—Primary atmospheric gases, e.g. air
    • F25J1/0017—Oxygen
    • 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
    • F25J1/0012—Primary atmospheric gases, e.g. air
    • F25J1/002—Argon
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
    • F25J1/00—Processes or apparatus for liquefying or solidifying gases or gaseous mixtures
    • F25J1/0002—Processes or apparatus for liquefying or solidifying gases or gaseous mixtures characterised by the fluid to be liquefied
    • F25J1/0022—Hydrocarbons, e.g. natural gas
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
    • F25J1/00—Processes or apparatus for liquefying or solidifying gases or gaseous mixtures
    • F25J1/0002—Processes or apparatus for liquefying or solidifying gases or gaseous mixtures characterised by the fluid to be liquefied
    • F25J1/0027—Oxides of carbon, e.g. CO2
    • 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
    • F25J1/0055—Processes or apparatus for liquefying or solidifying gases or gaseous mixtures characterised by the kind of cold generation within the liquefaction unit for compensating heat leaks and liquid production using an "external" refrigerant stream in a closed vapor compression cycle by vaporising a liquid refrigerant stream originating from an incorporated cascade
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
    • F25J1/00—Processes or apparatus for liquefying or solidifying gases or gaseous mixtures
    • F25J1/006—Processes or apparatus for liquefying or solidifying gases or gaseous mixtures characterised by the refrigerant fluid used
    • F25J1/0097—Others, e.g. F-, Cl-, HF-, HClF-, HCl-hydrocarbons etc. or mixtures thereof
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
    • F25J1/00—Processes or apparatus for liquefying or solidifying gases or gaseous mixtures
    • F25J1/02—Processes or apparatus for liquefying or solidifying gases or gaseous mixtures requiring the use of refrigeration, e.g. of helium or hydrogen ; Details and kind of the refrigeration system used; Integration with other units or processes; Controlling aspects of the process
    • F25J1/0211—Processes or apparatus for liquefying or solidifying gases or gaseous mixtures requiring the use of refrigeration, e.g. of helium or hydrogen ; Details and kind of the refrigeration system used; Integration with other units or processes; Controlling aspects of the process using a multi-component refrigerant [MCR] fluid in a closed vapor compression cycle
    • F25J1/0212—Processes or apparatus for liquefying or solidifying gases or gaseous mixtures requiring the use of refrigeration, e.g. of helium or hydrogen ; Details and kind of the refrigeration system used; Integration with other units or processes; Controlling aspects of the process using a multi-component refrigerant [MCR] fluid in a closed vapor compression cycle as a single flow MCR cycle
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
    • F25J1/00—Processes or apparatus for liquefying or solidifying gases or gaseous mixtures
    • F25J1/02—Processes or apparatus for liquefying or solidifying gases or gaseous mixtures requiring the use of refrigeration, e.g. of helium or hydrogen ; Details and kind of the refrigeration system used; Integration with other units or processes; Controlling aspects of the process
    • F25J1/0243—Start-up or control of the process; Details of the apparatus used; Details of the refrigerant compression system used
    • F25J1/0257—Construction and layout of liquefaction equipments, e.g. valves, machines
    • F25J1/0262—Details of the cold heat exchange system
    • F25J1/0264—Arrangement of heat exchanger cores in parallel with different functions, e.g. different cooling streams
    • F25J1/0265—Arrangement of heat exchanger cores in parallel with different functions, e.g. different cooling streams comprising cores associated exclusively with the cooling of a refrigerant stream, e.g. for auto-refrigeration or economizer
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
    • C09K2205/00—Aspects relating to compounds used in compression type refrigeration systems
    • C09K2205/10—Components
    • C09K2205/12—Hydrocarbons
    • C09K2205/126—Unsaturated fluorinated hydrocarbons
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
    • C09K2205/00—Aspects relating to compounds used in compression type refrigeration systems
    • C09K2205/32—The mixture being azeotropic
    • 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
    • F25J2215/00—Processes characterised by the type or other details of the product stream
    • F25J2215/62—Ethane or ethylene

Definitions

  • the present invention basically relates to methods and apparatus for cascaded cooling of fluid streams.
  • the present invention is particularly related to methods and apparatus used in offshore gas processing plants.
  • non-azeotropic composition - an azeotropic mixture at any composition other than its azeotropic composition
  • - refrigerant mixture - a blend of one key component, at least one azeotropic component, and optionally one or more impurity;
  • C0 2 such as the R-744 product available from the Linde Group
  • the CO 2 has to be compressed to pressures significantly about the critical pressure of pure CO 2 . Use of such pressures can lead to unsafe operating conditions.
  • mixtures of CO 2 and saturated or unsaturated C 2 -HC and C 2 -FC that form azeotropic mixtures over a wide pressure range.
  • the composition of the azeotropic mixture is strongly dependent on the choice of the C 2 compound and the respective system pressure.
  • Propane (R-290) is known to form azeotropic mixtures with some HFCs but such mixtures are not described as useful for standardized refrigerant blends. To the contrary, some zeotropic mixtures containing propane and HFCs are described as being in the class of standardized refrigerant blends.
  • an object of the present invention is to overcome the limitations and problems that earlier methods and apparatus have experienced.
  • the present invention basically provides for improved methods and apparatus for cascaded cooling of fluid streams and particularly for cascaded cooling of fluid streams on offshore chemical and gas processing plants.
  • the azeotropic component may be a saturated or unsaturated hydrocarbon or fluorocarbon having a carbon chain length of two; in particular, the azeotropic component may be C2H6, C2F6, C2H4, C2F4, C2H2, or C2F2.
  • the method and apparatus of the present invention may be used for cooling, liquefaction or processing of natural gas, ethylene, CO2, air, and pure or mixed air components (for example nitrogen, oxygen, argon).
  • natural gas ethylene, CO2, air, and pure or mixed air components (for example nitrogen, oxygen, argon).
  • Fig. 1 shows a comparison of the principal effect of adding high and low boiling impurities as well as azeotropic components to the phase behaviour of the key component if the key component is CO2 near its triple point;
  • Fig. 2 shows a variety of refrigerant phase behaviours based on the addition of different compounds to a pure key component (preferably CO2), including
  • case 2 zeotropic mixtures with irregular phase behaviour formed by a key component and multiple azeotropic components
  • Fig. 3 shows an exemplary phase diagram for CO2 (key component) and C2H6 (azeotropic component) according to the present invention
  • Fig. 4 shows an exemplary process scheme according to the present invention.
  • the refrigerant mixture consists of a mixture of the key component and one or more azeotropic components as shown in Fig. 2, case 1 a, case 1 b and case 2.
  • the refrigerant mixture consists of a mixture containing a key component, at least one azeotropic component and at least one impurity.
  • the low pressure boiling point temperature of the refrigerant mixture should be below the pure substance boiling point temperatures of at least two of the mixture components at the same pressure as shown in Fig. 2, case 2, case 3a, case 3b and case 3c.
  • the sum of the impurities included is below 30 mol%, preferably below 15 mol% and more preferably below 5 mol%.
  • These impurities may be present in the refrigerant mixture naturally (for example originating from impure CO 2 makeup) or may be added deliberately. It is noted that small amounts of impurity may be added to the mixture to improve the phase behaviour of the mixture to a more favorable shape of the phase envelope.
  • the effect of impurities may be, for example,
  • One embodiment of the present invention is to a refrigerant mixture comprising CO2 as the key component and at least C2H6 as the azeotropic component.
  • the CO2 content for this refrigerant mixture is less than or equal to 95 mol% and greater than the azeotropic composition of the binary system C2H6 CO2 at low pressure.
  • Preferred compositions for this refrigerant mixture have CO2 content between 58 mol% and 93 mol%, and more preferably between 80 mol% and 90 mol%.
  • a preferred range for the CO2 component is from 58 mol% to 93 mol% and more preferable from 80 mol% to 90 mol%. These ranges provide the highest benefit for counter-current heat exchangers in the bottom stage evaporator.
  • Fig. 4 shown an exemplary process scheme for use of the refrigerant mixtures according to the present invention.
  • a warm fluid WF passes through a cascade of heat exchangers, E01 , E02, E03 and E04, and is cooled in the course to a lower temperature and condensed fully or partially.
  • the outlet temperature of the cold fluid CF is below the triple point temperature of pure CO2.
  • the formed vapour is recycled to the cold-end inlet of E07 and the formed liquid is supplied to top stage, kettle type evaporator E01 where it is partially evaporated.
  • the formed vapour is recycled to the cold-end inlet of E07.
  • the pressure of the remaining liquid is expanded down further (for example 30 bar to 50 bar) and the refrigerant is supplied to a second, kettle-type evaporator where it is again partially evaporated.
  • the formed vapour is fed into the first compressor stage.
  • the pressure of the remaining liquid is expanded down further (for example 15 bar to 25 bar) and the refrigerant is supplied to a third, kettle-type evaporator where it is again partially evaporated.
  • the formed vapour is fed into the first compressor stage.
  • the pressure of the remaining liquid is expanded down further (for example 5.5 bar to 10 bar) and the refrigerant is evaporated completely in a counter flow to the pre-cooled fluid stream in E04.
  • the formed vapour is fed into the first compressor stage.
  • the compressor stage C01 compresses the vapour from E02, E03 and E04 to a subcritical pressure (ca. 60 bar to 70 bar) and the refrigerant passes through the intercooler E05 and is unified with the vapour coming from E07 and fed into the suction line of the second compressor stage C02.
  • the method and apparatus of the present invention may be used for cooling, liquefaction or processing of natural gas, ethylene, CO 2 , air, and pure or mixed air components (for example nitrogen, oxygen, argon).

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Combustion & Propulsion (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Health & Medical Sciences (AREA)
  • Emergency Medicine (AREA)
  • General Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Separation By Low-Temperature Treatments (AREA)

Abstract

Afin de surmonter les limitations et les problèmes auxquels ont été exposés les procédés pour refroidir, liquéfier ou traiter un gaz, il est proposé d'utiliser un mélange réfrigérant comprenant du CO2 et au moins un composant azéotrope. Un mélange réfrigérant correspondant est également divulgué.
PCT/EP2016/072778 2015-09-24 2016-09-24 Procédé pour refroidir, liquéfier ou traiter un gaz et mélange réfrigérant correspondant WO2017051021A1 (fr)

Applications Claiming Priority (2)

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US201562222812P 2015-09-24 2015-09-24
US62/222,812 2015-09-24

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109135677A (zh) * 2018-08-22 2019-01-04 安徽工业大学 一种co2/r170共沸制冷剂

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US5345013A (en) * 1993-06-10 1994-09-06 E. I. Du Pont De Nemours And Company Safe handling of tetrafluoroethylene
EP0765924A2 (fr) * 1992-07-10 1997-04-02 E.I. Du Pont De Nemours And Company Compositions azéotropes de perfluoroéthane et de trifluorométhane, ou d'oxyde, d'oxyde azote, de dioxyde de carbone ou de fluorométhane
WO2001069149A1 (fr) 2000-03-15 2001-09-20 Den Norske Stats Oljeselskap A.S. Procede de liquefaction de gaz naturel
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EP0765924A2 (fr) * 1992-07-10 1997-04-02 E.I. Du Pont De Nemours And Company Compositions azéotropes de perfluoroéthane et de trifluorométhane, ou d'oxyde, d'oxyde azote, de dioxyde de carbone ou de fluorométhane
US5345013A (en) * 1993-06-10 1994-09-06 E. I. Du Pont De Nemours And Company Safe handling of tetrafluoroethylene
WO2001069149A1 (fr) 2000-03-15 2001-09-20 Den Norske Stats Oljeselskap A.S. Procede de liquefaction de gaz naturel
US20110079026A1 (en) * 2006-05-20 2011-04-07 Earthcare Products Limited Refrigerant
US20140060111A1 (en) 2012-09-06 2014-03-06 Linde Aktiengesellschaft Process for liquefying a hydrocarbon-rich fraction
DE102012017653A1 (de) 2012-09-06 2014-03-06 Linde Ag Verfahren zum Verflüssigen einer Kohlenwasserstoff-reichen Fraktion
US20150013380A1 (en) 2013-07-11 2015-01-15 Linde Aktiengesellschaft Method for separating off acid gases from natural gas
DE102013011640A1 (de) 2013-07-11 2015-01-29 Linde Aktiengesellschaft Verfahren zum Abtrennen von Sauergasen aus Erdgas

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NAGAHAMA K ET AL: "BINARY VAPOR-LIQUID EQUILIBRIA OF CARBON DIOXIDE-LIGHT HYDROCARBONS AT LOW TEMPERATURE", JOURNAL OF CHEMICAL ENGINEERING OF JAPAN, SOCIETY OF CHEMICAL ENGINEERS, JP, vol. 7, no. 5, 1 January 1974 (1974-01-01), pages 323, XP008061255, ISSN: 0021-9592, DOI: 10.1252/JCEJ.7.323 *
NASRUDDIN: "a cascade refrigeration system using mixture of carbon dioxide and hydrocarbons for low temperature applications", 1 January 2011 (2011-01-01), pages 379 - 386, XP055351109, Retrieved from the Internet <URL:http://docsdrive.com/pdfs/medwelljournals/jeasci/2011/379-386.pdf> [retrieved on 20170302] *

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109135677A (zh) * 2018-08-22 2019-01-04 安徽工业大学 一种co2/r170共沸制冷剂

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