Compositions containing tetrafluoropropene, tetrafluoroethane and pentafluoropropene and uses thereof

Patent metadata

Field	Value
Publication number	US-12428586-B2
Application number	US-202218686515-A
Country	US
Kind code	B2
Filing date	Sep 7, 2022
Priority date	Sep 8, 2021
Publication date	Sep 30, 2025
Grant date	Sep 30, 2025

Abstract

Disclosed herein are compositions for cooling and heating comprising refrigerant consisting essentially of HFO-1225yeE, HFO-1234zeE, and optionally HFC-134. These compositions are useful in methods for cooling and heating, in systems for cooling and heating, and in methods for replacing HFO-1234zeE, R-515A or R-515B. The inventive compositions provide non-flammable, low GWP refrigerants that can match performance of HFO-1234zeE.

First claim

What is claimed is:

1. A composition comprising a refrigerant comprising from about 10 to 98 weight percent HFO-1225yeE, about 1 to 64 weight percent HFO-1234zeE, and about 1 to 27 weight percent HFC-134.

2. The composition of claim 1 , said refrigerant comprising from about 10 to 78 weight percent HFO-1225yeE, about 11 to 64 weight percent HFO-1234zeE, and about 11 to 27 weight percent HFC-134.

3. The composition of claim 1 , said refrigerant comprising from about 23 to 78 weight percent HFO-1225yeE, about 11 to 64 weight percent HFO-1234zeE, and about 11 to 13 weight percent HFC-134.

4. The composition of claim 1 , said refrigerant comprising from about 23 to 39 weight percent HFO-1225yeE, about 12 to 64 weight percent HFO-1234zeE, and about 12 to 13 weight percent HFC-134.

5. The composition of claim 1 , wherein said refrigerant is non-flammable by ASTM E681.

6. The composition of claim 1 that provides volumetric cooling capacity within 10% of HFO-1234zeE at the same operating conditions, preferably within 8% and more preferably within 5%.

7. The composition of claim 1 , further comprising at least one lubricant, at least one stabilizer, or at least one tracer.

8. The composition of claim 7 , wherein said lubricant is selected from the group consisting of polyalkylene glycol, polyol ester, and polyvinyl ether, and combinations thereof.

9. The composition of claim 7 wherein said stabilizer is selected from the group consisting of nitromethane, ascorbic acid, terephthalic acid, azoles, phenolic compounds, cyclic monoterpenes, terpenes, phosphites, phosphates, phosphonates, thiols, lactones, and combinations thereof.

10. The composition of claim 9 wherein said stabilizer is selected from the group consisting of tolutriazole, benzotriazole, tocopherol, hydroquinone, t-butyl hydroquinone, 2,6-di-tertbutyl-4-methylphenol, fluorinated epoxides, n-butyl glycidyl ether, hexanediol diglycidyl ether, allyl glycidyl ether, butylphenylglycidyl ether, d-limonene, α-terpinene, β-terpinene, γ-terpinene, α-pinene, β-pinene, butylated hydroxytoluene, and combinations thereof.

11. The composition of claim 7 , wherein said tracer is selected from hydrofluorocarbons, hydrofluoroolefins, hydrochlorocarbons, hydrochloroolefins, hydrochlorofluorocarbons, hydrochlorofluoroolefins, hydrochlorocarbons, hydrochloroolefins, chlorofluorocarbons, chlorofluoroolefins, hydrocarbons, perfluorocarbons, perfluoroolefins, and combinations thereof.

12. The composition of claim 11 , wherein said tracer is selected from HFC-23, HCFC-31, HFC-41, HFC-161, HFC-152a, HFC-143a, HFC-125, HFC-227ca, HFC-227ea, HFC-236fa, HFC-236cb, HFC-236ea, HFC-245cb, HFC-245fa, HFC-245eb, HFC-254eb, HFC-263fb, HFC-272ca, HFC-281ea, HFC-281fa, HFC-329p, HFC-329mmz, HFC338mf, HFC-338pcc, CFC-12, CFC-11, CFC-114, CFC-114a, HCFC-22, HCFC-123, HCFC-124, HCFC-124a, HCFC-141b, HCFC-142b, HCFC-151a, HCFC-244bb, HCC-40, HFO-1141, HCFO-1130, HCFO-1130a, HCFO-1131, HCFO-1122, HFO-1123, HFO-1234ye, HFO-1243zf, HFO-1225yeZ, HFO-1225zc, PFC-116, PFC-C216, PFC-218, PFC-C318, PFC-1216, PFC-31-10mc, PFC-31-10my, and combinations thereof.

13. A process for producing cooling comprising evaporating the composition of claim 1 in the vicinity of a body to be cooled and thereafter condensing said composition.

14. A process for producing heating comprising condensing the composition of claim 1 in the vicinity of a body to be heated and thereafter evaporating said composition.

15. A system for cooling comprising an evaporator, compressor, condenser, and expansion device, said system containing the composition of claim 1 .

16. The system of claim 15 , which is a chiller.

17. A system for heating comprising an evaporator,
compressor, condenser, and expansion device, said system containing the composition of claim 1 .

18. The system of claim 17 , which is a heat pump.

19. A method for replacing HFO-1234zeE in a system for cooling or heating comprising providing the composition of claim 1 to said system.

20. The method of claim 19 , wherein the system for cooling or heating is a chiller or a heat pump.

21. A method for replacing HFO-1234zeE or R-515A or R-515B in a system for cooling or heating comprising providing the composition of claim 1 to said system, wherein the system comprises a centrifugal compressor.

22. A composition comprising a refrigerant consisting essentially of about 26 weight percent HFO-1225yeE, about 62 weight percent HFO-1234zeE, and about 12 weight percent HFC-134.

Assignees

• Chemours Co Fc Llc

Inventors

• Hughes Joshua
• Simoni Luke David

Classifications

• C09K2205/40

  Replacement mixtures · CPC title

• C09K2205/22

  All components of a mixture being fluoro compounds · CPC title

• C09K2205/126

  Unsaturated fluorinated hydrocarbons · CPC title

• C10M2207/2835

  used as base material · CPC title

• C10M2209/043

  used as base material · CPC title