WO2011101622A1 - Heat transfer compositions - Google Patents
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- WO2011101622A1 WO2011101622A1 PCT/GB2011/000202 GB2011000202W WO2011101622A1 WO 2011101622 A1 WO2011101622 A1 WO 2011101622A1 GB 2011000202 W GB2011000202 W GB 2011000202W WO 2011101622 A1 WO2011101622 A1 WO 2011101622A1
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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
- C09K5/044—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
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P6/00—Restoring or reconditioning objects
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
- C08J9/04—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent
- C08J9/12—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent by a physical blowing agent
- C08J9/14—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent by a physical blowing agent organic
- C08J9/143—Halogen containing compounds
- C08J9/144—Halogen containing compounds containing carbon, halogen and hydrogen only
- C08J9/146—Halogen containing compounds containing carbon, halogen and hydrogen only only fluorine as halogen atoms
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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
- C09K3/00—Materials not provided for elsewhere
- C09K3/30—Materials not provided for elsewhere for aerosols
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- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D7/00—Compositions of detergents based essentially on non-surface-active compounds
- C11D7/50—Solvents
- C11D7/5004—Organic solvents
- C11D7/5018—Halogenated solvents
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- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D7/00—Compositions of detergents based essentially on non-surface-active compounds
- C11D7/50—Solvents
- C11D7/5036—Azeotropic mixtures containing halogenated solvents
- C11D7/504—Azeotropic mixtures containing halogenated solvents all solvents being halogenated hydrocarbons
- C11D7/505—Mixtures of (hydro)fluorocarbons
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01K—STEAM ENGINE PLANTS; STEAM ACCUMULATORS; ENGINE PLANTS NOT OTHERWISE PROVIDED FOR; ENGINES USING SPECIAL WORKING FLUIDS OR CYCLES
- F01K25/00—Plants or engines characterised by use of special working fluids, not otherwise provided for; Plants operating in closed cycles and not otherwise provided for
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2203/00—Foams characterized by the expanding agent
- C08J2203/14—Saturated hydrocarbons, e.g. butane; Unspecified hydrocarbons
- C08J2203/142—Halogenated saturated hydrocarbons, e.g. H3C-CF3
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2203/00—Foams characterized by the expanding agent
- C08J2203/16—Unsaturated hydrocarbons
- C08J2203/162—Halogenated unsaturated hydrocarbons, e.g. H2C=CF2
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2203/00—Foams characterized by the expanding agent
- C08J2203/18—Binary blends of expanding agents
- C08J2203/182—Binary blends of expanding agents of physical blowing agents, e.g. acetone and butane
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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
- C09K2205/00—Aspects relating to compounds used in compression type refrigeration systems
- C09K2205/10—Components
- C09K2205/12—Hydrocarbons
- C09K2205/122—Halogenated hydrocarbons
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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
- C09K2205/00—Aspects relating to compounds used in compression type refrigeration systems
- C09K2205/10—Components
- C09K2205/12—Hydrocarbons
- C09K2205/126—Unsaturated fluorinated hydrocarbons
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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
- C09K2205/00—Aspects relating to compounds used in compression type refrigeration systems
- C09K2205/22—All components of a mixture being fluoro compounds
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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
- C09K2205/00—Aspects relating to compounds used in compression type refrigeration systems
- C09K2205/40—Replacement mixtures
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- 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
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T29/00—Metal working
- Y10T29/49—Method of mechanical manufacture
- Y10T29/49716—Converting
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- 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
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T29/00—Metal working
- Y10T29/49—Method of mechanical manufacture
- Y10T29/49718—Repairing
Definitions
- the invention relates to heat transfer compositions, and in particular to heat transfer compositions which may be suitable as replacements for existing refrigerants such as R- 134a, R-152a, R-1234yf, R-22, R-410A, R-407A, R-407B, R-407C, R507 and R-404a.
- a refrigerant liquid evaporates at low pressure taking heat from the surrounding zone.
- the resulting vapour is then compressed and passed to a condenser where it condenses and gives off heat to a second zone, the condensate being returned through an expansion valve to the evaporator, so completing the cycle.
- Mechanical energy required for compressing the vapour and pumping the liquid is provided by, for example, an electric motor or an internal combustion engine.
- the properties preferred in a refrigerant include low toxicity, non-flammability, non-corrosivity, high stability and freedom from objectionable odour.
- Other desirable properties are ready compressibility at pressures below 25 bars, low discharge temperature on compression, high refrigeration capacity, high efficiency (high coefficient of performance) and an evaporator pressure in excess of 1 bar at the desired evaporation temperature.
- Dichlorodifluoromethane (refrigerant R-12) possesses a suitable combination of properties and was for many years the most widely used refrigerant. Due to international concern that fully and partially halogenated chlorofluorocarbons were damaging the earth's protective ozone layer, there was general agreement that their manufacture and use should be severely restricted and eventually phased out completely. The use of dichlorodifluoromethane was phased out in the 1990's.
- Chlorodifluoromethane (R-22) was introduced as a replacement for R-12 because of its lower ozone depletion potential. Following concerns that R-22 is a potent greenhouse gas, its use is also being phased out. Whilst heat transfer devices of the type to which the present invention relates are essentially closed systems, loss of refrigerant to the atmosphere can occur due to leakage during operation of the equipment or during maintenance procedures. It is important, therefore, to replace fully and partially halogenated chlorofluorocarbon refrigerants by materials having zero ozone depletion potentials.
- R-410A and R-407 refrigerants have been introduced as a replacement refrigerant for R-22.
- R-22, R-410A and the R-407 refrigerants all have a high global warming potential (GWP, ajso known as greenhouse warming potential).
- R-134a 1 ,1 ,1 ,2-tetrafluoroethane
- R-134a 1 ,1 ,1 ,2-tetrafluoroethane
- R-134a has a GWP of 1300. It would be desirable to find replacements for R-134a that have a lower GWP.
- R-152a (1 ,1-difluoroethane) has been identified as an alternative to R-134a. It is somewhat more efficient than R-134a and has a greenhouse warming potential of 120. However the flammability of R-152a is judged too high, for example to permit its safe use in mobile air conditioning systems. In particular it is believed that its lower flammable limit in air is too low, its flame speeds are too high, and its ignition energy is too low.
- R-1234yf (2,3,3,3-tetrafluoropropene) has been identified as a candidate alternative refrigerant to replace R-134a in certain applications, notably the mobile air conditioning or heat pumping applications. Its GWP is about 4. R-1234yf is flammable but its flammability characteristics are generally regarded as acceptable for some applications including mobile air conditioning or heat pumping. In particular, when compared with R- 152a, its lower flammable limit is higher, its minimum ignition energy is higher and the flame speed in air is significantly lower than that of R-152a.
- R-1234yf The energy efficiency and refrigeration capacity of R-1234yf have been found to be significantly lower than those of R-134a and in addition the fluid has been found to exhibit increased pressure drop in system pipework and heat exchangers. A consequence of this is that to use R-1234yf and achieve energy efficiency and cooling performance equivalent to R-134a, increased complexity of equipment and increased size of pipework is required, leading to an increase in indirect emissions associated with equipment. Furthermore, the production of R-1234yf is thought to be more complex and less efficient in its use of raw materials (fluorinated and chlorinated) than R-134a. So the adoption of R-1234yf to replace R-134a will consume more raw materials and result in more indirect emissions of greenhouse gases than does R-134a.
- a principal object of the present invention is therefore to provide a heat transfer composition which is usable in its own right or suitable as a replacement for existing refrigeration usages which should have a reduced GWP, yet have a capacity and energy efficiency (which may be conveniently expressed as the "Coefficient of Performance") ideally within 10% of the values, for example of those attained using existing refrigerants (e.g.
- the subject invention addresses the above deficiencies by the provision of a heat transfer composition consisting essentially of from about 60 to about 85 % by weight frans-1 ,3,3,3-tetrafluoropropene (R-1234ze(E)) and from about 15 to about 40 % by weight of fluoroethane (R-161). These will be referred to herein as the binary compositions of the invention, unless otherwise stated.
- compositions of the invention contain substantially no other components, particularly no further (hydro)(fluoro)compounds (e.g. (hydro)(fluoro)alkanes or (hydro)(fluoro)alkenes) known to be used in heat transfer compositions.
- hydro)(fluoro)compounds e.g. (hydro)(fluoro)alkanes or (hydro)(fluoro)alkenes
- compositions herein are by weight based on the total weight of the compositions, unless otherwise stated.
- the binary compositions of the invention consist essentially of from about 62 to about 84 % by weight of R-1234ze(E) and from about 16 to about 38 % by weight of R-161.
- the binary compositions of the invention consist essentially of from about 65 to about 82 % by weight of R-1234ze(E) and from about 18 to about 35 % by weight of R-161.
- the binary compositions of the invention consist essentially of from about 70 to about 80 % by weight of R-1234ze(E) and from about 20 to about 30 % by weight of R-161.
- R-1234ze(E) the binary compositions of the invention may be interchanged in any way, provided that the resulting ranges fall within the broadest scope of the invention.
- a binary composition of the invention may consist essentially of from about 65 to about 85 % by weight of R-1234ze(E) and from about 15 to about 35 % by weight of R-161 , or from about 62 to about 83 % by weight of R- 1234ze(E) and from about 17 to about 38 % by weight of R-161.
- compositions of the invention comprise R-1234ze(E), R-161 , and additionally 1,1 ,1 ,2-tetrafluoroethane (R-134a). These will be referred to herein as the (ternary) compositions of the invention.
- the R-134a typically is included to reduce the flammability of the compositions of the invention, both in the liquid and vapour phases. Preferably, sufficient R-134a is included to render the compositions of the invention non-flammable.
- compositions typically contain up to about 50% by weight R-134a, preferably from about 25% to about 40% by weight R-134a.
- the remainder of the composition will contain R-161 and R-1234ze(E), suitably in similar preferred proportions as described hereinbefore.
- the composition of the invention may contain from about 4 to about 20 % by weight R-161, from about 25 to about 50 % R-134a, and from about 30 to about 71 % by weight R-1234ze(E). If the proportion of R-134a in the composition is about 25% by weight, then the remainder of the composition typically contains from about 6 to about 15 % by weight R- 161 , and from about 60 to about 69 % by weight R-1234ze(E). If the proportion of R-134a in the composition is about 40% by weight, then the remainder of the composition typically contains from about 4 to about 14% by weight R- 52a, and from about 46 to about 56 % by weight R-1234ze(E).
- compositions of the invention which contain R-134a are non-flammable at a test temperature of 60°C using the ASHRAE 34 methodology.
- compositions of the invention containing R-1234ze(E), R-161 and R-134a may consist essentially (or consist of) these components.
- any of the ternary compositions of the invention described herein, including those with specifically defined amounts of components may consist essentially of (or consist of) the components defined in those compositions.
- compositions according to the invention conveniently comprise substantially no R-1225 (pentafluoropropene), conveniently substantially no R-1225ye (1 ,2,3,3,3- pentafluoropropene) or R-1225zc (1 ,1 ,3,3,3-pentafluoropropene), which compounds may have associated toxicity issues.
- compositions of the invention contain 0.5% by weight or less of the stated component, preferably 0.1% or less, based on the total weight of the composition.
- compositions of the invention may contain substantially no:
- compositions of the invention consist essentially of (or consist of) R-1234ze(E), R-161 , and R-134a in the amounts specified above. In other words, these are ternary compositions.
- the compositions of the invention have zero ozone depletion potential.
- the compositions of the invention e.g. those that are suitable refrigerant replacements for R-134a, R-1234yf or R-152a
- a GWP that is less than 1300, preferably less than 1000, more preferably less than 500, 400, 300 or 200, especially less than 150 or 100, even less than 50 in some cases.
- IPCC Intergovernmental Panel on climate Change
- TAR Tin Assessment Report
- the compositions are of reduced flammability hazard when compared to the individual flammable components of the compositions, e.g. R-161.
- the compositions are of reduced flammability hazard when compared to R-1234yf.
- the compositions have one or more of (a) a higher lower flammable limit; (b) a higher ignition energy; or (c) a lower flame velocity compared to R-161 or R-1234yf.
- the compositions of the invention are non-flammable.
- the mixtures of vapour that exist in equilibrium with the compositions of the invention at any temperature between about -20°C and 60°C are also nonflammable.
- Flammability may be determined in accordance with ASHRAE Standard 34 incorporating the ASTM Standard E-681 with test methodology as per Addendum 34p dated 2004, the entire content of which is incorporated herein by reference. In some applications it may not be necessary for the formulation to be classed as nonflammable by the ASHRAE 34 methodology; it is possible to develop fluids whose flammability limits will be sufficiently reduced in air to render them safe for use in the application, for example if it is physically not possible to make a flammable mixture by leaking the refrigeration equipment charge into the surrounds. We have found that the effect of adding R-1234ze to flammable refrigerant R-161 is to modify the flammability in mixtures with air in this manner.
- Minor et al (Du Pont Patent Application WO2007/053697) provide teaching on the flammability of many hydrofluoroolefins, showing that such compounds could be expected to be non-flammable if the fluorine ratio is greater than about 0.7.
- the compositions of the invention have a fluorine ratio of from about 0.42 to about 0.7, such as from about 0.46 to about 0.67, for example from about 0.56 to about 0.65.
- a fluorine ratio of from about 0.42 to about 0.7, such as from about 0.46 to about 0.67, for example from about 0.56 to about 0.65.
- the upper and lower values of these fluorine ratio ranges may be interchanged in any way, provided that the resulting ranges fall within the broadest scope of the invention.
- compositions of the invention exhibit a completely unexpected combination of low-/non-flammability, low GWP and improved refrigeration performance properties. Some of these refrigeration performance properties are explained in more detail below.
- Temperature glide which can be thought of as the difference between bubble point and dew point temperatures of a zeotropic (non-azeotropic) mixture at constant pressure, is a characteristic of a refrigerant; if it is desired to replace a fluid with a mixture then it is often preferable to have similar or reduced glide in the alternative fluid.
- the compositions of the invention are zeotropic.
- the temperature glide (in the evaporator) of the compositions of the invention is less than about 10K, preferably less than about 5K.
- the volumetric refrigeration capacity of the compositions of the invention is at least 85% of the existing refrigerant fluid it is replacing, preferably at least 90% or even at least 95%.
- compositions of the invention typically have a volumetric refrigeration capacity that is at least 90% of that of R-1234yf.
- the compositions of the invention have a volumetric refrigeration capacity that is at least 95% of that of R-1234yf, for example from about 95% to about 120% of that of R-1234yf.
- the cycle efficiency (Coefficient of Performance, COP) of the compositions of the invention is within about 5% or even better than the existing refrigerant fluid it is replacing.
- the compressor discharge temperature of the compositions of the invention is within about 15K of the existing refrigerant fluid it is replacing, preferably about 10K or even about 5K.
- the compositions of the invention preferably have energy efficiency at least 95% (preferably at least 98%) of R-134a under equivalent conditions, while having reduced or equivalent pressure drop characteristic and cooling capacity at 95% or higher of R-134a values.
- the compositions have higher energy efficiency and lower pressure drop characteristics than R-134a under equivalent conditions.
- the compositions also advantageously have better energy efficiency and pressure drop characteristics than R-1234yf alone.
- the heat transfer compositions of the invention are suitable for use in existing designs of equipment, and are compatible with all classes of lubricant currently used with established HFC refrigerants. They may be optionally stabilized or compatibilized with mineral oils by the use of appropriate additives.
- the composition of the invention when used in heat transfer equipment, is combined with a lubricant.
- the lubricant is selected from the group consisting of mineral oil, silicone oil, polyalkyl benzenes (PABs), polyol esters (POEs), polyalkylene glycols (PAGs), polyalkylene glycol esters (PAG esters), polyvinyl ethers (PVEs), poly (alpha-olefms) and combinations thereof.
- PABs polyalkyl benzenes
- POEs polyol esters
- PAGs polyalkylene glycols
- PAG esters polyalkylene glycol esters
- PVEs polyvinyl ethers
- poly (alpha-olefms) poly (alpha-olefms) and combinations thereof.
- the lubricant further comprises a stabiliser.
- the stabiliser is selected from the group consisting of diene-based compounds, phosphates, phenol compounds and epoxides, and mixtures thereof.
- composition of the invention may be combined with a flame retardant.
- the flame retardant is selected from the group consisting of tri-(2- chloroethyl)-phosphate, (chloropropyl) phosphate, tri-(2,3-dibromopropyl)-phosphate, tri- (1 ,3-dichloropropyl)-phosphate, diammonium phosphate, various halogenated aromatic compounds, antimony oxide, aluminium trihydrate, polyvinyl chloride, a fluorinated iodocarbon, a fluorinated bromocarbon, trifluoro iodomethane, perfluoroalkyl amines, bromo-fluoroalkyl amines and mixtures thereof.
- the heat transfer composition is a refrigerant composition.
- the invention provides a heat transfer device comprising a composition of the invention.
- the heat transfer device is a refrigeration device.
- the heat transfer device is selected from group consisting of automotive air conditioning systems, residential air conditioning systems, commercial air conditioning systems, residential refrigerator systems, residential freezer systems, commercial refrigerator systems, commercial freezer systems, chiller air conditioning systems, chiller refrigeration systems, and commercial or residential heat pump systems.
- the heat transfer device is a refrigeration device or an air-conditioning system.
- the heat transfer device contains a centrifugal-type compressor.
- the invention also provides the use of a composition of the invention in a heat transfer device as herein described.
- a blowing agent comprising a composition of the invention.
- a foamable composition comprising one or more components capable of forming foam and a composition of the invention.
- the one or more components capable of forming foam are selected from polyurethanes, thermoplastic polymers and resins, such as polystyrene, and epoxy resins.
- a foam obtainable from the foamable composition of the invention.
- the foam comprises a composition of the invention.
- a sprayabie composition comprising a material to be sprayed and a propellant comprising a composition of the invention.
- a method for cooling an article which comprises condensing a composition of the invention and thereafter evaporating said composition in the vicinity of the article to be cooled.
- a method for heating an article which comprises condensing a composition of the invention in the vicinity of the article to be heated and thereafter evaporating said composition.
- a method for extracting a substance from biomass comprising contacting the biomass with a solvent comprising a composition of the invention, and separating the substance from the solvent.
- a method of cleaning an article comprising contacting the article with a solvent comprising a composition of the invention.
- a method for extracting a material from an aqueous solution comprising contacting the aqueous solution with a solvent comprising a composition of the invention, and separating the material from the solvent.
- a method for extracting a material from a particulate solid matrix comprising contacting the particulate solid matrix with a solvent comprising a composition of the invention, and separating the material from the solvent.
- a mechanical power generation device containing a composition of the invention.
- the mechanical power generation device is adapted to use a Rankine Cycle or modification thereof to generate work from heat.
- a method of retrofitting a heat transfer device comprising the step of removing an existing heat transfer fluid, and introducing a composition of the invention.
- the heat transfer device is a refrigeration device or (a static) air conditioning system.
- the method further comprises the step of obtaining an allocation of greenhouse gas (e.g. carbon dioxide) emission credit.
- an existing heat transfer fluid can be fully removed from the heat transfer device before introducing a composition of the invention.
- An existing heat transfer fluid can also be partially removed from a heat transfer device, followed by introducing a composition of the invention.
- the existing heat transfer fluid is R-134a
- the composition of the invention contains R134a, R-1234ze(E) and R-161 (and optional components as a lubricant, a stabiliser or an additional flame retardant), R-1234ze(E), R- 161 , etc, can be added to the R-134a in the heat transfer device, thereby forming the compositions of the invention, and the heat transfer device of the invention, in situ.
- Some of the existing R-134a may be removed from the heat transfer device prior to adding the R-1234ze(E), R-161 , etc, to facilitate providing the components of the compositions of the invention in the desired proportions.
- the invention provides a method for preparing a composition and/or heat transfer device of the invention comprising introducing R-1234ze(E) and R-161 , and optional components such as a lubricant, a stabiliser or an additional flame retardant, into a heat transfer device containing an existing heat transfer fluid which is R-134a.
- a lubricant such as a lubricant, a stabiliser or an additional flame retardant
- at least some of the R-134a is removed from the heat transfer device before introducing the R-1234ze(E), R-161 , etc.
- compositions of the invention may also be prepared simply by mixing the R-1234ze(E) and R-161 , optionally R-134a (and optional components such as a lubricant, a stabiliser or an additional flame retardant) in the desired proportions.
- the compositions can then be added to a heat transfer device (or used in any other way as defined herein) that does not contain R-134a or any other existing heat transfer fluid, such as a device from which R-134a or any other existing heat transfer fluid have been removed.
- a method for reducing the environmental impact arising from operation of a product comprising an existing compound or composition comprising replacing at least partially the existing compound or composition with a composition of the invention.
- this method comprises the step of obtaining an allocation of greenhouse gas emission credit.
- environmental impact we include the generation and emission of greenhouse warming gases through operation of the product.
- this environmental impact can be considered as including not only those emissions of compounds or compositions having a significant environmental impact from leakage or other losses, but also including the emission of carbon dioxide arising from the energy consumed by the device over its working life.
- Such environmental impact may be quantified by the measure known as Total Equivalent Warming Impact (TEWI). This measure has been used in quantification of the environmental impact of certain stationary refrigeration and air conditioning equipment, including for example supermarket refrigeration systems (see, for example, http://en.wikipedia.orq/wiki/Total equivalent warming impact).
- the environmental impact may further be considered as including the emissions of greenhouse gases arising from the synthesis and manufacture of the compounds or compositions.
- the manufacturing emissions are added to the energy consumption and direct loss effects to yield the measure known as Life-Cycle Carbon Production (LCCP, see for example http://www.sae.orq/events/aars/presentations/2007papasawa.pdf).
- LCCP Life-Cycle Carbon Production
- the use of LCCP is common in assessing environmental impact of automotive air conditioning systems.
- a method for generating greenhouse gas emission credit(s) comprising (i) replacing an existing compound or composition with a composition of the invention, wherein the composition of the invention has a lower GWP than the existing compound or composition; and (ii) obtaining greenhouse gas emission credit for said replacing step.
- the use of the composition of the invention results in the equipment having a lower Total Equivalent Warming Impact, and/or a lower Life-Cycle Carbon Production than that which would be attained by use of the existing compound or composition.
- any suitable product for example in the fields of air-conditioning, refrigeration (e.g. low and medium temperature refrigeration), heat transfer, blowing agents, aerosols or sprayable propellants, gaseous dielectrics, cryosurgery, veterinary procedures, dental procedures, fire extinguishing, flame suppression, solvents (e.g. carriers for flavorings and fragrances), cleaners, air horns, pellet guns, topical anesthetics, and expansion applications.
- the field is air- conditioning or refrigeration.
- suitable products include a heat transfer devices, blowing agents, foamable compositions, sprayable compositions, solvents and mechanical power generation devices.
- the product is a heat transfer device, such as a refrigeration device or an air-conditioning unit.
- the existing compound or composition has an environmental impact as measured by GWP and/or TEWI and/or LCCP that is higher than the composition of the invention which replaces it.
- the existing compound or composition may comprise a fluorocarbon compound, such as a perfluoro-, hydrofluoro-, chlorofluoro- or hydrochlorofluoro-carbon compound or it may comprise a fluorinated olefin
- the existing compound or composition is a heat transfer compound or composition such as a refrigerant.
- refrigerants that may be replaced include R-134a, R-152a, R-1234yf, R-410A, R-407A, R-407B, R-407C, R507, R-22 and R-404A.
- the compositions of the invention are particularly suited as replacements for R- 134a, R-152a or R-1234yf. Any amount of the existing compound or composition may be replaced so as to reduce the environmental impact. This may depend on the environmental impact of the existing compound or composition being replaced and the environmental impact of the replacement composition of the invention.
- the existing compound or composition in the product is fully replaced by the composition of the invention.
- the flammability of R-161 in air at atmospheric pressure and controlled humidity was studied in a test flask apparatus as described by the methodology of ASHRAE standard 34.
- the test temperature used was 23°C; the humidity was controlled to be 50% relative to a standard temperature of 77°F (25°C).
- the diluent used was R-1234ze(E), which was found to be non flammable under these test conditions.
- the fuel and diluent gases were subjected to vacuum purging of the cylinder to remove dissolved air or other inert gases prior to testing.
- non flammable mixtures comprising R-161 and R-1234ze(E) can be created if the fluorine ratio of the mixture is greater than about 0.56.
- the basic property data required to use this model were: critical temperature and critical pressure; vapour pressure and the related property of Pitzer acentric factor; ideal gas enthalpy, and measured vapour liquid equilibrium data for the binary system R-161/R- 1234ze(E).
- the basic property data (critical properties, acentric factor, vapour pressure and ideal gas enthalpy) for R-161 were derived from measurements of the vapour pressure and from literature sources including: Han et al, Isothermal vapour-liquid equilibrium of (pentafluoroethane + fluoroethane) at temperatures between 265.15K and 303.15K obtained with a recirculating still, J Chem Eng Data 2006 51 1232-1235; Chen et al, Gaseous PVT properties of ethyl fluoride Fluid Phase Equilibria, 237 (2005) 11-116; and Beyerlein et al, Properties of novel fluorinated compounds and their mixtures as alternative refrigerants, Fluid Phase Equilibria 150- 51 (1997) 287-296 (all of which are incorporated by reference).
- Vapour liquid equilibrium data for the binary mixtures was regressed to the Peng Robinson equation using a binary interaction constant incorporated into van der Waal's mixing rules as follows.
- Vapour liquid equilibrium data for R161 with R-1234ze(E) was modelled by using the equation of state with van der Waals mixing rules and setting the interaction constant to zero.
- the refrigeration performance of selected compositions of the invention were modelled using the following cycle conditions.
- the performance analysis shows that it is possible to achieve significant improvements as compared to the performance of R-1234ze(E) by incorporating minor amounts of R- 161, while maintaining flammability levels lower than for R-1234yf.
- This latter property is especially beneficial for automotive air conditioning systems, in which the diameter of the suction line can be an important factor in vehicle engine compartment layout.
- a major cause of efficiency and cooling capacity loss in an automotive a/c system is the pressure drop between the evaporator and the compressor; so it is beneficial to achieve the cooling capacity of 1234yf whilst reducing this pressure drop.
- the performance analysis also shows that the temperature glide in the evaporator will be low (typically less than 2K) even though the mixtures of the invention are zeotropic.
- compositions in weight % Compositions in weight %
- Evaporator inlet T (°C) 0.0 0.0 0.0 0.0 -0.1 -0.3 -0.4 -0.5 -0.6 -0.7 -0.7
- Refrigeration effect (kJ/kg) 123.76 94.99 108.63 1 1 1.89 1 15.1 1 1 18.29 121.44 124.56 127.65 130.71
- volumetric flow rate (m3/hr) 13.16 14.03 18.29 17.68 17.13 16.62 16.15 15.71 15.31 14.93
- Fluorine ratio R F/(F+H) 0.667 0.644 0.622 0.601 0.581 0.562 0.544 0.527
- compositions in weight % Compositions in weight %
- Evaporator inlet T (°C) 0.0 0.0 -0.8 -0.9 -0.9 -0.9 -1.0 -1.0 -1.0 -1.0 -1.0
- Refrigeration effect (kJ/kg) 123.76 94.99 133.76 136.78 139.79 142.79 145.77 148.74 151.70 154.65
- volumetric flow rate (m3/hr) 13.16 14.03 14.58 14.25 13.95 13.66 13.39 13.14 12.91 12.68
- Fluorine ratio R F/(F+H) 0.511 0.495 0.481 0.466 0.453 0.439 0.427 0.415
- compositions in weight % Compositions in weight %
- Evaporator inlet T (°C) 0.0 0.0 -0.3 -0.3 -0.3 -0.3 -0.3 -0.3 -0.2
- Mass flow rate (kg/hr) 174.53 227.39 190.29 189.64 188.97 188.24 187.45 186.59 185.64
- volumetric flow rate (m3/hr) 13.16 14.03 16.09 15.75 15.43 15.14 14.87 14.62 14.39
- compositions in weight % Compositions in weight %
- Mass flow rate (kg/hr) 174.53 227.39 185.10 184.50 183.87 183.19 182.44 181.62 180.70
- Fluorine ratio R F/(F+H) 0.623 0.623 0.623 0.623 0.624 0.624 0.624
- compositions in weight % Compositions in weight %
- Evaporator inlet T (°C) 0.0 0.0 -0.5 -0.5 -0.4 -0.4 -0.4 -0.3 -0.3
- Refrigeration effect (kJ/kg) 123.76 94.99 119.86 120.23 120.63 121.06 121.55 122.09 122.70
- Fluorine ratio R F/(F+H) 0.602 0.603 0.603 0.603 0.604 0.604 0.604
- compositions in weight % Compositions in weight %
- Evaporator inlet T (°C) 0.0 0.0 -0.5 -0.5 -0.5 -0.4 -0.4 -0.4 -0.3
- Refrigeration effect (kJ/kg) 123.76 94.99 123.01 123.37 123.76 124.20 124.69 125.24 125.&
- Mass flow rate (kg/hr) 74.53 227.39 175.60 175.08 174.52 173.91 173.23 172.47 171.62
- volumetric flow rate (m3/hr) 13.16 14.03 14.90 14.63 14.37 14.12 13.90 13.69 13.50
- volumetric capacity (m3/hr) 1641 1540 1449 1477 1504 1529 1554 1578 163 ⁇ 4b
- Fluorine ratio R F/(F+H) 0.583 0.583 0.584 0.584 0.585 0.585 0.585
- Relative COP 100.0% 94.3% 100.2% 100.1 % 100.1 % 100.0% 99.9% 99.9% 99.8%
- compositions in weight % Compositions in weight %
- Evaporator inlet T (°C) 0.0 0.0 -0.6 -0.6 -0.5 -0.5 -0.4 -0.4 -0.3
- Fluorine ratio R F/(F+H) 0.564 0.565 0.566 0.566 0.567 0.567 0.567 0.567
- compositions in weight % Compositions in weight %
- Evaporator inlet T (°C) 0.0 0.0 -0.6 -0.6 -0.5 -0.5 -0.5 -0.4 -0.4
- Mass flow rate (kg/hr) 174.53 227.39 167.12 166.66 166.16 165.59 164.96 164.25 163.46
- Fluorine ratio R F/(F+H) 0.547 0.547 0.548 0.549 0.549 0.550 0.550
- Relative COP 100.0% 94.3% 100.7% 100.6% 00.5% 100.4% 100.3% 100.3% 100.3%
- compositions in weight % Compositions in weight %
- Evaporator inlet T (°C) 0.0 0.0 -0.7 -0.6 -0.6 -0.5 -0.5 -0.4 -0.4
- Refrigeration effect (kJ/kg) 123.76 94.99 132.35 132.70 133.10 133.54 134.05 134.62 135.27
- volumetric flow rate (m3/hr) 13.16 14.03 13.94 13.71 13.49 13.29 13.10 12.92 12.76
- Fluorine ratio R F/(F+H) 0.530 0.531 0.531 0.532 0.533 0.533 0.534
- Relative COP 100.0% 94.3% 100.8% 00.8% 100.7% 100.6% 100.5% 100.5% 100.5%
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Abstract
Description
Claims
Priority Applications (12)
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MX2012009136A MX2012009136A (en) | 2010-02-16 | 2011-02-14 | Heat transfer compositions. |
KR1020127024064A KR20130009968A (en) | 2010-02-16 | 2011-02-14 | Heat transfer compositions |
RU2012139636/05A RU2557604C2 (en) | 2010-02-16 | 2011-02-14 | Heat-transmitting compositions |
BR112012020516A BR112012020516A2 (en) | 2010-02-16 | 2011-02-14 | composition, heat transfer and mechanical energy generation devices, use of a composition, blowing agent, foam, and methods for cooling and heating an article, for extracting a substance from biomass and a material, for cleaning an article, to retrofit a heat transfer device, to reduce the environmental impact to prepare a heat transfer composition and / or device, and to generate greenhouse gas emission credit. |
JP2012553388A JP5843788B2 (en) | 2010-02-16 | 2011-02-14 | Heat transfer composition |
US13/579,458 US20130187078A1 (en) | 2010-02-16 | 2011-02-14 | Heat transfer compositions |
CA2789352A CA2789352A1 (en) | 2010-02-16 | 2011-02-14 | Heat transfer compositions |
CN2011800096583A CN102782076A (en) | 2010-02-16 | 2011-02-14 | Heat transfer compositions |
AU2011217064A AU2011217064B2 (en) | 2010-02-16 | 2011-02-14 | Heat transfer compositions |
EP11709757A EP2536805A1 (en) | 2010-02-16 | 2011-02-14 | Heat transfer compositions |
ZA2012/05825A ZA201205825B (en) | 2010-02-16 | 2012-08-02 | Heat transfer compositions |
US14/797,932 US20150315447A1 (en) | 2010-02-16 | 2015-07-13 | Heat Transfer Compositions |
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EP (1) | EP2536805A1 (en) |
JP (1) | JP5843788B2 (en) |
KR (1) | KR20130009968A (en) |
CN (1) | CN102782076A (en) |
AU (2) | AU2011217064B2 (en) |
BR (1) | BR112012020516A2 (en) |
CA (1) | CA2789352A1 (en) |
GB (1) | GB201002617D0 (en) |
MX (1) | MX2012009136A (en) |
RU (1) | RU2557604C2 (en) |
WO (1) | WO2011101622A1 (en) |
ZA (1) | ZA201205825B (en) |
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US9828536B2 (en) | 2010-12-14 | 2017-11-28 | The Chemours Company Fc, Llc | Combinations of E-1,3,3,3-tetrafluoropropene and at least one tetrafluoroethane and their use for heating |
US10119056B2 (en) | 2010-09-20 | 2018-11-06 | Arkema France | Composition based on 1,3,3,3,-tetrafluoropropene |
US10144855B2 (en) | 2012-03-27 | 2018-12-04 | Jxtg Nippon Oil And Energy Corporation | Working fluid composition for refrigerator |
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WO2013147045A1 (en) * | 2012-03-29 | 2013-10-03 | Jx日鉱日石エネルギー株式会社 | Working fluid composition for refrigerator |
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RU2557604C2 (en) | 2015-07-27 |
BR112012020516A2 (en) | 2018-04-10 |
US20150315447A1 (en) | 2015-11-05 |
EP2536805A1 (en) | 2012-12-26 |
AU2014213522A1 (en) | 2014-09-04 |
ZA201205825B (en) | 2016-01-27 |
AU2011217064B2 (en) | 2014-07-03 |
CN102782076A (en) | 2012-11-14 |
AU2011217064A1 (en) | 2012-09-06 |
MX2012009136A (en) | 2012-10-01 |
CA2789352A1 (en) | 2011-08-25 |
GB201002617D0 (en) | 2010-03-31 |
JP5843788B2 (en) | 2016-01-13 |
RU2012139636A (en) | 2014-03-27 |
KR20130009968A (en) | 2013-01-24 |
JP2013519779A (en) | 2013-05-30 |
AU2014213522B2 (en) | 2015-03-12 |
US20130187078A1 (en) | 2013-07-25 |
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