Granted Patent B2

US 11,913,681 · App. 18/220,777 · Granted Feb 27, 2024

Inventors: Sheng Peng (Hockessin, DE); Mario Joseph Nappa (Leesburg, FL)

Assignee: THE CHEMOURS COMPANY FC, LLC

F25B13/00C07C17/357C07C19/08C07C21/18

Abstract

Claims (20)

1. A fluoropropene composition comprising greater than 0 and less than 500 ppm Z-1,3,3,3-tetrafluoropropene based on the total fluoropropene composition, E-1,3,3,3-tetrafluoropropene, E-1336mzz, and between 0.00001 to 5 mol % 2,3,3,3-tetrafluoropropene (HFO-1234yf) based on the total fluoropropene composition, and further comprising at least one of R-134a, R-227a, R-1225ye and R-1233zd.

2. The composition of claim 1 , wherein the 2,3,3,3-tetrafluoropropene is present in an amount of 0.00001 to 0.4 mol % based on the total fluoropropene composition.

3. The composition of claim 1 , further comprising at least one of HFC-245fa and HFC-245cb present in an amount of between 0.001 mole percent and 2 mole percent, based on the total fluoropropene composition.

4. The composition of claim 1 , wherein the fluoropropene composition includes R-1233zd(E) in an amount of 0.001 mole percent to 1.15 mole percent, based on the total fluoropropene composition.

5. The composition of claim 1 , wherein the fluoropropene composition includes R-1233zd(Z) in an amount of 0.001 mole percent to 0.25 mole percent, based on the total fluoropropene composition.

6. The composition of claim 1 , wherein the fluoropropene composition includes R-143a in an amount of 0.001 mole percent to 0.25 mole percent, based on the total fluoropropene composition.

7. The composition of claim 1 wherein the additional compounds comprise at least one of R-134a and R-227a.

8. The composition of claim 7 comprising about 17 wt. % E-1336mzz based on the total fluoropropene composition.

9. The composition of any of claim 7 or 8 comprising about 12 wt. % E-1336mzz based on the total fluoropropene composition.

10. The composition of claim 9 comprising about 10 wt. % R-134a based on the total fluoropropene composition.

11. The composition of claim 1 wherein the composition is near azeotropic.

12. A process for transferring heat, comprising: providing an article; contacting the article with a heat transfer media; wherein the heat transfer media comprises the fluoropropene composition of claim 1 .

13. A refrigeration system, comprising: an evaporator; a condenser; a compressor; an expansion device; and a heat transfer media; wherein the heat transfer media comprises the fluoropropene composition of claim 1 .

14. A process comprising replacing older generation refrigerants, including R404A and R502a with the refrigerant composition of claim 1 .

15. The composition of claim 1 , further comprising at least one of HFC-245fa and HFC-245cb present in an amount of between 0.001 mole percent and 2 mole percent, based on the total fluoropropene composition.

16. A process for transferring heat, comprising: providing an article; contacting the article with a heat transfer media; and wherein the heat transfer media comprises the fluoropropene composition of claim 1 .

17. A refrigeration system, comprising: an evaporator; a condenser; a compressor; an expansion device; and a heat transfer media; wherein the heat transfer media comprises the fluoropropene composition of claim 1 .

18. The composition of claim 1 , wherein the fluoropropene composition includes R-1233zd(E) in an amount of 0.001 mole percent to 1.15 mole percent, based on the total fluoropropene composition.

19. The composition of claim 1 , wherein the fluoropropene composition includes R-1233zd(Z) in an amount of 0.001 mole percent to 0.25 mole percent, based on the total fluoropropene composition.

20. The composition of claim 16 , wherein the fluoropropene composition includes R-143a in an amount of 0.001 mole percent to 0.25 mole percent, based on the total fluoropropene composition.

Assignments (1)

Continuity (9)