Azeotrope-like compositions of tetrafluoropropene and hydrofluorocarbons
Provided are azeotrope-like compositions comprising tetrafluoropropene and hydrofluorocarbons and uses thereof, including use in refrigerant compositions, refrigeration systems, blowing agent compositions, and aerosol propellants.
1. A heat transfer composition comprising a refrigerant composition comprising from about 86.6% by weight to about 98.9% by weight of trans-1,3,3,3-tetrafluoropropene (transHFO-1234ze) and from about 1.1% by weight to about 13.4% by weight of 1,1,1,2,3,3,3-heptafluoropropane (“HFC-227ea”).
2. The heat transfer composition of claim 1 further comprising at least one lubricant.
3. The heat transfer composition of claim 1 wherein said refrigerant consists essentially of said transHFO-1234ze and said HFC-227ea and wherein the boiling point of said refrigerant is less than the boiling point of said trans-1,3,3,3-tetrafluoropropene (transHFO-1234ze).
4. The heat transfer composition of claim 1 wherein said refrigerant composition comprises from about 86.6% by weight to about 93.2% by weight of trans-1,3,3,3-tetrafluoropropene (transHFO-1234ze) and from about 6.8% by weight to about 13.4% by weight of 1,1,1,2,3,3,3-heptafluoropropane (“HFC-227ea”).
5. The heat transfer composition of claim 1 wherein said refrigerant composition comprises from about 93.2% by weight to about 98.9% by weight of trans-1,3,3,3-tetrafluoropropene (transHFO-1234ze) and from about 1.1% by weight to about 6.8% by weight of 1,1,1,2,3,3,3-heptafluoropropane (“HFC-227ea”).
6. The heat transfer composition of claim 2 , wherein said at least one lubricant comprises at least one POE.
7. The heat transfer composition of claim 4 , wherein said heat transfer composition further comprises at least one lubricant.
8. The heat transfer composition of claim 7 , wherein said at least one lubricant comprises at least one POE.
9. The heat transfer composition of claim 5 , wherein said heat transfer composition further comprises at least one lubricant.
10. The heat transfer composition of claim 1 , wherein said refrigerant composition has a boiling point of from about 18.7° C. to about 18.3° C. at a pressure of about 14.4 psia.
11. The heat transfer composition of claim 2 , wherein said refrigerant composition has a boiling point of from about −18.7° C. to about −18.3° C. at a pressure of about 14.4 psia.
12. A refrigeration system comprising the heat transfer composition of claim 1 wherein said system is selected from the 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, heat pump systems, and combinations of two or more of these.
13. A refrigeration system comprising the heat transfer composition of claim 2 wherein said system is selected from the 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, heat pump systems, and combinations of two or more of these.
14. The refrigeration system of claim 13 , wherein said lubricant comprises at least one POE.
15. The refrigeration system of claim 13 , wherein said lubricant is selected from the group consisting of PAGs and PAG esters.
16. The refrigeration system of claim 14 , wherein said lubricant(s) together are present in an amount of from about 5 to about 50% by weight of the heat transfer composition.
17. A method of using a refrigerant system of the type that is useful with 1,1,1,2,-tetrafluoroethane (“HFC-134a”), said method comprising:
(a) providing a refrigerant composition comprising from about 86.6% by weight to about 98.9% by weight of trans-1,3,3,3-tetrafluoropropene (transHFO-1234ze) and from about 1.1% by weight to about 13.4% by weight of 1,1,1,2,3,3,3-heptafluoropropane (“HFC-227ea”); and
(b) introducing said refrigerant composition into the system.
18. The method of claim 17 wherein said refrigerant composition comprises from about 86.6% by weight to about 93.2% by weight of trans-1,3,3,3-tetrafluoropropene (transHFO-1234ze) and from about 6.8% by weight to about 13.4% by weight of 1,1,1,2,3,3,3-heptafluoropropane (“HFC-227ea”).
19. The method of claim 17 wherein said refrigerant composition comprises from about 93.2% by weight to about 98.9% by weight of trans-1,3,3,3-tetrafluoropropene (transHFO-1234ze) and from about 1.1% by weight to about 6.8% by weight of 1,1,1,2,3,3,3-heptafluoropropane (“HFC-227ea”).
20. The method of claim 17 wherein said system comprises at least one lubricant 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-olefins) (PAOs), and combinations of these.
21. The method of claim 17 wherein said lubricant comprises at least one POE.
22. The method of claim 17 wherein said lubricant is selected from the group consisting of PAGs, PAG esters, and combinations of these.
23. The method of claim 17 wherein said refrigerant composition has a boiling point of from about −18.7° C. to about −18.3° C. at a pressure of about 14.4 psia.
24. The method of claim 17 wherein said refrigerant consists essentially of said transHFO-1234ze and said HFC-227ea and wherein the boiling point of said refrigerant is less than the boiling point of said trans-1,3,3,3-tetrafluoropropene (transHFO-1234ze).
25. The method of claim 17 wherein said system is selected from the group consisting of residential refrigerator systems, commercial refrigerator systems, chiller refrigeration systems, and combinations of two or more of these.
26. The method of claim 17 wherein said system is a chiller refrigeration system.
27. The method of claim 17 wherein said system is a residential refrigeration system air.
28. A heat transfer composition comprising:
(1) a refrigerant composition comprising from about 47% by weight to less than 100% by weight of trans-1,3,3,3-tetrafluoropropene (transHFO-1234ze) and from greater than 0% by weight to about 53% by weight of 1,1,1,2,3,3,3-heptafluoropropane (“HFC-227ea”); and
(2) at least one lubricant 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-olefins) (PAOs), and combinations of these.
29. The heat transfer composition of claim 28 wherein said refrigerant consists essentially of said transHFO-1234ze and said HFC-227ea and wherein the boiling point of said refrigerant is less than the boiling point of said trans-1,3,3,3-tetrafluoropropene (transHFO-1234ze).
30. The heat transfer composition of claim 28 , wherein said lubricant comprises at least one POE.
31. The heat transfer composition of claim 29 , wherein said lubricant comprises at least one POE.
32. The method of claim 28 wherein said refrigerant composition comprises from about 86.6% by weight to about 93.2% by weight of trans-1,3,3,3-tetrafluoropropene (transHFO-1234ze) and from about 6.8% by weight to about 13.4% by weight of 1,1,1,2,3,3,3-heptafluoropropane (“HFC-227ea”).
33. The method of claim 28 wherein said refrigerant composition comprises from about 93.2% by weight to about 98.9% by weight of trans-1,3,3,3-tetrafluoropropene (transHFO-1234ze) and from about 1.1% by weight to about 6.8% by weight of 1,1,1,2,3,3,3-heptafluoropropane (“HFC-227ea”).
34. The method of claim 28 wherein said refrigerant composition comprises from about 86.6% by weight to about 98.9% by weight of trans-1,3,3,3-tetrafluoropropene (transHFO-1234ze) and from about 1.1% by weight to about 13.4% by weight of 1,1,1,2,3,3,3-heptafluoropropane (“HFC-227ea”).
35. The heat transfer composition of claim 28 wherein said refrigerant composition consists essentially of about 93.2% by weight of trans-1,3,3,3-tetrafluoropropene (transHFO-1234ze) and about 6.8% by weight of 1,1,1,2,3,3,3-heptafluoropropane (“HFC-227ea”).
36. The heat transfer composition of claim 28 wherein said refrigerant composition consists essentially of about 86.6% by weight of trans-1,3,3,3-tetrafluoropropene (transHFO-1234ze) and about 13.4% by weight of 1,1,1,2,3,3,3-heptafluoropropane (“HFC-227ea”).
37. The heat transfer composition of claim 1 wherein said refrigerant composition consists essentially of about 93.2% by weight of trans-1,3,3,3-tetrafluoropropene (transHFO-1234ze) and about 6.8% by weight of 1,1,1,2,3,3,3-heptafluoropropane (“HFC-227ea”).
38. The heat transfer composition of claim 1 wherein said refrigerant composition consists essentially of about 86.6% by weight of trans-1,3,3,3-tetrafluoropropene (transHFO-1234ze) and about 13.4% by weight of 1,1,1,2,3,3,3-heptafluoropropane (“HFC-227ea”).
39. The method of claim 17 wherein said system is a commercial refrigerator system.