LOW GWP HEAT TRANSFER COMPOSITIONS
    1.
    发明公开
    LOW GWP HEAT TRANSFER COMPOSITIONS 审中-公开
    WÄRMEÜBERTRAGUNGSZUSAMMENSETZUNGENMIT GERINGEM GWP-WERT

    公开(公告)号:EP2885367A4

    公开(公告)日:2016-04-06

    申请号:EP13831453

    申请日:2013-08-08

    CPC classification number: C09K5/045 C09K2205/106 C09K2205/126

    Abstract: The present invention relates, in part, to heat transfer compositions and methods that include (a) from about 65% to about 75% by weight of HFC-32; (b) from about 15% to about 35% by weight of a compound selected from unsaturated —CF3 terminated propenes, unsaturated —CF3 terminated butenes, and combinations of these; and (c) from greater than about 0% to less than about 10% by weight of CO2, provided that the amount of component (c) is effective to improve heating capacity of the composition and reduce the defrost cycle in refrigerant applications, as compared to compositions lacking this component.

    Abstract translation: 本发明部分涉及包含(a)约65%至约75%重量的HFC-32的热转移组合物和方法; (b)约15%至约35%重量的选自不饱和-CF 3封端的丙烯,不饱和-CF 3封端的丁烯及其组合的化合物; 如果组分(c)的用量有效提高组合物的加热能力并减少制冷剂应用中的除霜循环,则相对于(c)大于约0%至小于约10% 对缺乏该组分的组合物。

    Heat transfer methods, systems and compositions

    公开(公告)号:AU2018337829A1

    公开(公告)日:2020-04-02

    申请号:AU2018337829

    申请日:2018-09-19

    Abstract: Disclosed are methods for providing heating and/or cooling of the type comprising evaporating refrigerant liquid and condensing refrigerant vapor in a plurality of repeating cycles, where the method comprises (a) providing the refrigerant comprising at least about 5% by weight of a lower alkyl iodofluorocarbon; and (b) exposing at least a portion of said refrigerant in at least a portion of said plurality of said cycles to a sequestration material comprising: i) copper or a copper alloy; ii) a molecular sieve (preferably a zeolite), comprising copper, silver, lead or a combination thereof; iii) an anion exchange resin, and iv) a combination of two or more of these, wherein said exposing temperature is preferably above about 20C.

    HEAT TRANSFER COMPOSITIONS, METHODS, AND SYSTEMS

    公开(公告)号:CA3089233A1

    公开(公告)日:2019-08-08

    申请号:CA3089233

    申请日:2019-01-30

    Abstract: The present invention relates to a refrigerant composition, including difluoromethane (HFC- 32), pentafluoroethane (HFC-125), and trifluoroiodomethane (CF3I) for use in a heat exchange system, including air conditioning and refrigeration applications and in particular aspects to the use of such compositions as a replacement of the refrigerant R-410A for heating and cooling applications and to retrofitting heat exchange systems, including systems designed for use with R-410A.

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