Azeotropic compositions of hfo-1234yf and hydrocarbons
AssigneeThe Chemours Company Fc, LLC
InventorsMARY E. KOBAN, LUKE DAVID SIMONI
Life of this patent
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Abstract
Refrigerant compositions including 2,3,3,3-tetrafluoropropene (HFO-1234yf) and at least one of ethane (R-170) or propane (R-290) which exhibit near-azeotropic or azeotrope-like behavior. The refrigerant compositions exhibit a low global warming potential (GWP) and are non-ozone depleting. The refrigerant compositions are useful as a heating or cooling fluids in a variety of heating or cooling systems including heat pumps and other heating and cooling loops, in, for example, the automotive industry.
Claims48
A refrigerant composition comprising:
- 2,3,3,3-tetrafluoropropene (HFO-1234yf) and at least one of ethane (R-170) or propane (R-290);
- wherein the composition is near-azeotropic.
A refrigerant composition comprising:
- 2,3,3,3-tetrafluoropropene (HFO-1234yf) and propane (R-290);
- wherein the propane (R-290) is present in an amount between 0.1 to 15 weight percent, based on the total refrigerant composition.
A refrigerant composition comprising:
- 2,3,3,3-tetrafluoropropene (HFO-1234yf) and propane (R-290);
- wherein the propane (R-290) is present in an amount between 0.1 to 22 weight percent, based on the total refrigerant composition.
A method for improving gross contaminants from a refrigerant composition comprising:
- providing a first refrigerant composition;
- wherein the first refrigerant composition is not near azeotropic and includes 2,3,3,3-tetrafluoropropene (HFO-1234yf) and at least one of ethane (R-170) or propane (R-290);
- providing at least one of 2,3,3,3-tetrafluoropropene (HFO-1234yf), ethane (R-170) or propane (R-290) to the first refrigerant composition to form a second refrigerant composition;
- wherein the second refrigerant composition is near azeotropic.
Dependencies are inferred from the claim text.