Ternary refrigerant compositions which contain perfluoroorgano sulfur compounds as replacements for R-22
AssigneeClemson University
InventorsDarryl D. DesMarteau, Adolph L. Beyerlein, Ismail Kul
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Abstract
Refrigerant compositions include mixtures of at least three different components, including a fluorinated sulfur-containing compound with at least one of a fluorinated ether or a fluorinated hydrocarbon. Also, methods for cooling a body include compressing such a refrigerant composition and bringing the body into heat transfer relation to it. The disclosed refrigerant compounds have refrigerant-significant properties similar to those of R-22, and they can be employed as drop-in substitutes in refrigeration apparatus designed for R-22 application.
Claims18
A refrigerant composition consisting essentially of a mixture of three components, each said component being different from the other said components, a first said component being a first fluorinated ether and each of a second said component and a third said component being selected from the group consisting of a fluorinated ether, an ether, a fluorinated hydrocarbon, and a fluorinated sulfur-containing compound and said fluorinated sulfur-containing compound is a component, and wherein said three components when mixed have improved miscibility and show less than about 2% separation at temperatures within the operational range.
A refrigerant composition consisting essentially of a mixture of trifluoromethyl pentafluoroethyl ether and trifluoromethyl sulfur pentafluoride and 1,1-difluoroethane.
A refrigerant composition consisting essentially of a first, second and third component
- wherein said first component is selected from the group consisting of perfluoromethyl ethyl ether, pentafluorodimethyl ether, and trifluoromethyl methyl ether,
- said second component is a fluorinated ether selected form the group consisting of perfluoromethyl ethyl ether, pentafluorodimethyl ether, and trifuloromethyl methyl ether and
- said third component is selected from the group consisting of bis trifluoromethyl sulfide and trifluoromethylsulfur pentafluorine.
Dependencies are inferred from the claim text.