Compositions containing fluorine substituted olefins and methods and systems using same

摘要

Disclosed are the use of fluorine substituted olefins, including tetra- and penta-fluoropropenes, in a variety of applications, including in methods of depositing catalyst on a solid support, methods of sterilizing articles, cleaning methods and compositions, methods of applying medicaments, fire extinguishing/suppression compositions and methods, flavor formulations, fragrance formulations and inflating agents.

主权项

1. A method for producing an automobile air conditioning system for use with 2,3,3,3-tetrafluoropropene (HFO-1234yf) comprising:
(a) providing an automobile vapor compression air conditioning system usable with refrigerant 1,1,1,2-tetrafluoroethane (HFC-134a) and having at least one compressor and at least one condenser; and (b) providing a heat transfer composition in said system, said heat transfer composition consisting essentially of: (i) at least about 50% by weight of a low toxicity refrigerant suitable for use in automobile air conditioning systems, said refrigerant consisting essentially of HFO-1234yf; and (ii) lubricant consisting essentially of polyalkylene glycol(s), and wherein (1) said condenser is operable with said refrigerant in a temperature range that includes 150° F. and (2) said system when operating at a condenser temperature of 150° F. achieves a capacity relative to HFC-134a of about 1 and a Coefficient of Performance (COP) relative to HFC-134a of about 1.