摘要:
A vapor compression refrigeration system, including a reciprocating, scroll, or rotary compressor and a refrigerant composition. The refrigerant composition comprises difluoromethane (R-32), 2,3,3,3-tetrafluoropropene (R-1234yf), and propane (R-290).
摘要:
The present invention relates to compositions comprising at least one fluoroolefin, HFC-32, and an effective amount of at least one inhibitor. The stabilized compositions may be useful in cooling and heating apparatus, such as refrigeration, air-conditioning, chillers, and heat pumps, as well as in applications as foam blowing agents, solvents, aerosol propellants, fire extinguishants, and sterilants.
摘要:
The present application provides compositions comprising 1,2-dichloro-1,2 -difluoroethylene (i.e., CFO-1112) and an additional component. The present application further provides use of the compositions provided herein in fire suppression applications (e.g., total flooding and/or streaming fire suppression applications).
摘要:
A method and apparatus for reclaiming refrigerant. The method includes transferring, an unreclaimed refrigerant composition, including one or more hydrofluoro olefins, from a source vessel to a receiving vessel and transporting the receiving vessel to a recycling center. The unreclaimed refrigerant composition is analyzed to determine the composition of the unreclaimed refrigerant composition sample. A target composition is determined, based on the analyzed unreclaimed refrigerant composition, and one or more treatments are determined, based on the target composition. The unreclaimed refrigerant composition is treated, with the one or more treatments, to form a reclaimed refrigerant composition having the composition of the reclaimed refrigerant composition is equal to the target composition.
摘要:
The present invention relates to processes for preparing refrigerant blends comprising one or more purified hydrofluorocarbon compounds, wherein the one or more hydrofluorocarbon compounds have been recovered from one or more refrigeration, air conditioning or heat pump systems, and purified.
摘要:
Disclosed is a mixture comprising the compound Z-1-chloro-2,3,3,3-tetrafluoroprop-1-ene and at least one additional compound selected from the group consisting ofHFOs, HFCs, HFEs, CFCs, CO2, olefins, organic acids, alcohols, hydrocarbons, ethers, aldehydes, ketones, and others such as methyl formate, formic acid, trans-1,2 dichloroethylene, carbon dioxide, cis-HFO-1234ze+HFO-1225yez; mixtures of these plus water; mixtures of these plus CO2; mixtures of these trans 1,2-dichloroethylene (DCE); mixtures of these plus methyl formate; mixtures with cis-HFO-1234ze+CO2; mixtures with cis-HFO-1234ze+HFO-1225yez+CO2; mixtures with cis-HFO-1234ze+HFC-245fa; and azeotrope or azeotrope-like compositions. Also disclosed are methods of using the compositions as blowing agents, solvents, heat transfer compositions, aerosol propellant compositions, fire extinguishing and suppressant compositions.
摘要:
Disclosed herein is a method to improve miscibility in refrigeration, air conditioning, heat pump or power cycle systems comprising charging a refrigeration, air conditioning or heat pump system with a refrigerant composition; wherein the refrigerant composition comprises at least one refrigerant and a lubricant comprising at least one perfluoropolyether and at least one non-fluorinated lubricant, provided that the refrigerant composition has no more than two liquid phases over the range of the composition and over a range of temperature from about −40° C. to about +60° C. Also disclosed is a refrigeration, air conditioning, heat pump, or power cycle system containing said refrigerant composition.
摘要:
The present application relates to compositions comprising difluoromethane (R-32), trifluoroiodomethane (CF3I), and carbon dioxide (CO2), that are useful in refrigeration, air conditioning, or heat pump systems. Methods of replacing a refrigerant selected from R-410A and R-32 in refrigeration, air conditioning, or heat pump systems are also provided.
摘要:
A refrigeration system, including a low back pressure (LBP) hermetic reciprocating compressor and a refrigerant composition. The refrigerant composition includes difluoromethane (R-32), and 2,3,3,3-tetrafluoropropene (R-1234yf).
摘要:
A refrigeration system including a flooded evaporator. The flooded evaporator additionally includes a liquid evaporator refrigerant composition and a vapor evaporator refrigerant composition. The liquid refrigerant composition includes difluoromethane (HFC-32), and 2,3,3,3-tetrafluoropropene (R-1234yf) and the vapor refrigerant composition includes difluoromethane (HFC-32), and 2,3,3,3-tetrafluoropropene (R-1234yf). The mass fraction of difluoromethane in the liquid evaporator refrigerant composition is lower than the mass fraction of difluoromethane in the vapor evaporator refrigerant composition and the mass fraction of 2,3,3,3-tetrafluoropropene in the liquid evaporator refrigerant composition is greater than the mass fraction of 2,3,3,3-tetrafluoropropene in the vapor evaporator refrigerant composition.