Tetrafluoropropene compositions and uses thereof

Abstract

The present invention relates to compositions for use in refrigeration, air-conditioning, and heat pump systems wherein the composition comprises a tetrafluoropropene and at least one other component. The compositions of the present invention are useful in processes for producing cooling or heat, as heat transfer fluids, foam blowing agents, aerosol propellants, and fire suppression and fire extinguishing agents.

1 - 14 . (canceled) 
     
     
         15 . A composition comprising a non-flammable refrigerant consisting essentially of HFO-1234yf and HFC-134a, wherein said refrigerant contains no more than about 60 weight percent HFO-1234yf and at least about 40 weight percent HFC-134a. 
     
     
         16 . The composition of  claim 15 , wherein said refrigerant consists essentially of from about 52.5 to 60 weight percent HFO-1234yf and from about 47.5 to 40 weight percent HFC-134a. 
     
     
         17 . The composition of  claim 15 , wherein said refrigerant consists essentially of from about 55 to 60 weight percent HFO-1234yf and from about 45 to 40 weight percent HFC-134a. 
     
     
         18 . The composition of  claim 15 , wherein said refrigerant consists essentially of from about 55 to 57.5 weight percent HFO-1234yf and from about 45 to 42.5 weight percent HFC-134a. 
     
     
         19 . The composition of  claim 15  further comprising at least one lubricant selected from the group consisting of mineral oils, alkylbenzenes, synthetic paraffins, synthetic naphthenes, poly alpha olefins, polyalkylene glycols, dibasic acid esters, polyesters, neopentyl esters, polyvinyl ethers, silicones, silicate esters, fluorinated compounds, phosphate esters and mixtures thereof. 
     
     
         20 . A process to produce cooling comprising condensing a composition of  claim 15  and thereafter evaporating said composition in the vicinity of a body to be cooled. 
     
     
         21 . A process to produce heat comprising condensing the composition of  claim 15  in the vicinity of a body to be heated and thereafter evaporating said composition. 
     
     
         22 . A method for replacing R12, R134a, R22, R404A, R407A, R407C, R408A, R410A, R413A, R417A, R419A, R422A, R422B, R422C, R422D, R423A, R424A, R426A, R428A, R430A, R434A, R437A, R438A, R502, R507A, R507B, and R508, in a system that uses, used or was designed to use R12, R134a, R22, R404A, R407A, R407C, R408A, R410A, R413A, R417A, R419A, R422A, R422B, R422C, R422D, R423A, R424A, R426A, R428A, R430A, R434A, R437A, R438A, R502, R507A, R507B, and R508, wherein said method comprises providing the composition of  claim 15  to said system. 
     
     
         23 . A refrigeration, air-conditioning or heat pump apparatus containing the composition of  claim 15 . 
     
     
         24 . The refrigeration, air-conditioning or heat pump apparatus of  claim 23  comprising a stationary air-conditioning system. 
     
     
         25 . The refrigeration, air-conditioning or heat pump apparatus of  claim 23  comprising a stationary refrigeration system. 
     
     
         26 . The refrigeration, air-conditioning or heat pump apparatus of  claim 23  comprising a chiller.