Compositions comprising fluoroolefins and uses thereof
AssigneeE. I. Du Pont de Nemours and Company
InventorsMario Joseph Nappa, Barbara Haviland Minor
Life of this patent
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Abstract
The present invention relates to fluoroolefin compositions. The fluoroolefin compositions of the present invention are useful as refrigerants or heat transfer fluids and in processes for producing cooling or heat. Additionally, the fluoroolefin compositions of the present invention may be used to replace currently used refrigerant or heat transfer fluid compositions that have higher global warming potential.
Claims13
1-48. (canceled)
A process for cooling, said process comprising condensing a composition comprising 1,1,1,4,4,5,5,5-octafluoro-2-pentene and thereafter evaporating said composition in the vicinity of a body to be cooled, wherein said condensing and evaporating takes place in a chiller.
A process to produce cooling comprising compressing a composition comprising 1,1,1,4,4,5,5,5-octafluoro-2-pentene in a centrifugal compressor, condensing said composition, and thereafter evaporating said composition in the vicinity of a body to be cooled.
A process to produce cooling, said process comprising condensing a composition comprising 1,1,1,4,4,5,5,5-octafluoro-2-pentene and thereafter evaporating said composition in the vicinity of a body to be cooled, wherein said condensing and evaporating take place in a heat exchanger selected from the group consisting of fin and tube heat exchangers, microchannel heat exchangers, vertical or horizontal single pass tube or plate type heat exchangers, and single slab/single pass heat exchangers.
A method for replacing an original refrigerant or heat transfer fluid composition with a second refrigerant or heat transfer fluid composition said method comprising providing a composition comprising 1,1,1,4,4,5,5,5-octafluoro-2-pentene as the second refrigerant or heat transfer fluid composition, wherein said original refrigerant or heat transfer fluid comprises CFC-113, CFC-11, HCFC-123, HFC-245fa, CFC-114, HFC-236fa, or HFC-365mfc.
A composition comprising 1,1,1,4,4,5,5,5-octafluoro-2-pentene and at least one additive selected from the group consisting of nitromethane, hindered phenols, hydroxylamines, thiols, phosphites, epoxides and lactones.
Dependencies are inferred from the claim text.