Environmentally friendly refrigerant compositions having low flammability and low GWP

Environmentally friendly refrigerant compositions having low flammability and low GWP

A refrigerant composition includes R-125 (pentafluoroethane), R-134a (1,1,1,2-tetrafluoroethane), R-32 (difluoromethane), R-227ea (1,1,1,2,3,3,3-heptafluoropropane), R-152a (1,1-difluoroethane), CO2 and R-1234ze (1,3,3,3-tetrafluoropropene). In one exemplary embodiment, the refrigerant includes 18.5...

Ausführliche Beschreibung

Gespeichert in:
Bibliographische Detailangaben
Hauptverfasser: Couchot, David L, Ramanan, Sankara N
Format: Patent
Sprache:eng
Schlagworte:
ADHESIVES
CHEMISTRY
DYES
MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FORELSEWHERE
METALLURGY
MISCELLANEOUS APPLICATIONS OF MATERIALS
MISCELLANEOUS COMPOSITIONS
NATURAL RESINS
PAINTS
POLISHES
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Beschreibung
Zusammenfassung:A refrigerant composition includes R-125 (pentafluoroethane), R-134a (1,1,1,2-tetrafluoroethane), R-32 (difluoromethane), R-227ea (1,1,1,2,3,3,3-heptafluoropropane), R-152a (1,1-difluoroethane), CO2 and R-1234ze (1,3,3,3-tetrafluoropropene). In one exemplary embodiment, the refrigerant includes 18.5-20.5 wt % R-125, about 9-11 wt % R-134a, about 20-22 wt % R-32, about 3-5 wt % R-227ea, about 2.5-4.5 wt % R-152a, about 1-3 wt % CO2 and about 39-41 wt % R-1234ze. Formulating with reclaimed material lowers the global warming potential to about 400 to about 750.