Hfo-1234ze and hfo-1234yf compositions and processes for producing and using the compositions
AssigneeThe Chemours Company Fc, LLC
InventorsSHENG PENG, MARIO JOSEPH NAPPA
Life of this patent
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Abstract
A fluoropropene composition comprising Z-1,3,3,3-tetrafluoropropene, E-1,3,3,3-tetrafluoropropene, 2,3,3,3-tetrafluoropropene, and optionally 1,1,1,3,3-pentafluoropropane wherein the 2,3,3,3-tetrafluoropropene being present in an amount of 0.001 to 1.0%. A method of producing the fluoropropene, methods for using the fluoropropene and the composition formed are also disclosed.
Claims10
A composition comprising Z-1,3,3,3-tetrafluoropropene (HFO-1234ze(Z)), E-1,3,3,3-tetrafluoropropene (HFO-1234ze(E)), 2,3,3,3-tetrafluoropropene (HFO-1234yf), 1,1,1,2,2-pentafluoropropane (HFC-245cb), optionally 1,1,1,3,3-pentafluoropropane (HFC-245fa), and wherein the amount of HFO-1234ze(Z) is less than about 500 ppm and the amount of HFO-1234ze(E) is about 99 mole percent based on the total amount of the composition.
A process for transferring heat, comprising:
- providing an article;
- contacting the article with a fluoropropene composition comprising one of:
- (A) Z-1,3,3,3-tetrafluoropropene (HFO-1234ze(Z)), E-1,3,3,3-tetrafluoropropene (HFO-1234ze(E)), 2,3,3,3-tetrafluoropropene (HFO-1234yf), 1,1,1,2,2-pentafluoropropane (HFC-245cb), and optionally 1,1,1,3,3-pentafluoropropane (HFC-245fa), wherein based on the total amount of the composition HFO-1234ze(E) is present in an amount of between about 98 mole percent and about 99 mole percent, HFO-1234yf is present in an amount of between greater than 0 and less than 0.5 mole percent and HFO-1234ze(Z) is present in an amount of between greater than 0 and 500 ppm, or
- (B) Z-1,3,3,3-tetrafluoropropene (HFO-1234ze(Z)), E-1,3,3,3-tetrafluoropropene (HFO-1234ze(E)), 2,3,3,3-tetrafluoropropene (HFO-1234yf), and 1,1,1,2,2-pentafluoropropane (HFC-245cb), wherein based on the total weight of the fluoropropene composition, the amount of HFO-1234ze(Z) is less than about 500 ppm and the amount of HFO-1234ze(E) is about 99 mole percent;
- and
- transferring heat between the article and the fluoropropene composition.
A refrigeration system, comprising:
- an evaporator;
- a condenser;
- a compressor;
- an expansion device;
- and
- a heat transfer media comprising a composition selected from the group consisting of:
- (i) a composition comprising Z-1,3,3,3-tetrafluoropropene (HFO-1234ze(Z)), E-1,3,3,3-tetrafluoropropene (HFO-1234ze(E)), 2,3,3,3-tetrafluoropropene (HFO-1234yf), 1,1,1,2,2-pentafluoropropane (HFC-245cb), and optionally 1,1,1,3,3-pentafluoropropane (HFC-245fa), wherein based on the total weight of the composition, HFO-1234ze(E) is present in an amount of between about 98 mole percent and about 99 mole percent, HFO-1234yf is present in an amount of between greater than 0 and less than 0.5 mole percent, and greater than 0 and 500 ppm Z-1,3,3,3-tetrafluoropropene if present, or
- (ii) a composition comprising Z-1,3,3,3-tetrafluoropropene (HFO-1234ze(Z)), E-1,3,3,3-tetrafluoropropene (HFO-1234ze(E)), 2,3,3,3-tetrafluoropropene (HFO-1234yf), 1,1,1,2,2-pentafluoropropane (HFC-245cb), and optionally 1,1,1,3,3-pentafluoropropane (HFC-245fa), wherein based on the total weight of the composition, the amount of HFO-1234ze(Z) is less than about 500 ppm, the amount of HFO-1234ze(E) is about 99 mole percent, and the amount of HFC-245fa is greater than 0 and 0.25 mole percent based on the total amount of the composition.
A method of replacing a refrigerant, the method comprising replacing one of R.404A or R-502 with a heat transfer media comprising one of:
- a. a composition comprising Z-1,3,3,3-tetrafluoropropene (HFO-1234ze(Z)), E-1,3,3,3-tetrafluoropropene (HFO-1234ze(E)), 2,3,3,3-tetrafluoropropene (HFO-1234yf), optionally 1,1,1,3,3-pentafluoropropane (HFC-245fa), and 1,1,1,2,2-pentafluoropropane (HFC-245cb), wherein based on the total weight of the composition, HFO-1234ze(E) is present in an amount of between about 98 mole percent and about 99 mole percent, HFO-1234yf is present in an amount of between greater than 0 and less than 0.5 mole percent, and Z-1,3,3,3-tetrafluoropropene is present in an amount of between greater than 0 and 500 ppm, or
- b. a composition comprising Z-1,3,3,3-tetrafluoropropene (HFO-1234ze(Z)), E-1,3,3,3-tetrafluoropropene (HFO-1234ze(E)), 2,3,3,3-tetrafluoropropene (HFO-1234yf), optionally 1,1,1,3,3-pentafluoropropane (HFC-245fa), and 1,1,1,2,2-pentafluoropropane (HFC-245cb), wherein based on the total amount of the composition, the amount of HFO-1234ze(Z) is less than about 500 ppm, the amount of HFO-1234ze(E) is about 99 mole percent, and the amount of HFC-245fa is greater than 0 and 0.25 mole percent, if present.
Dependencies are inferred from the claim text.