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    Low GWP heat transfer compositions
    11.
    发明授权
    Low GWP heat transfer compositions 有权

    公开(公告)号：US09783721B2

    公开(公告)日：2017-10-10

    申请号：US13804941

    申请日：2013-03-14

    Applicant: HONEYWELL INTERNATIONAL INC.

    Inventor： Mark W. Spatz ,  Ankit Sethi ,  Samuel F. Yana Motta ,  Elizabet Del Carmen Vera Becerra

    IPC: C09K5/04

    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.

    LOW GWP HEAT TRANSFER COMPOSITIONS
    16.
    发明申请
    LOW GWP HEAT TRANSFER COMPOSITIONS 审中-公开
    低GWP热转印组合物

    公开(公告)号：US20150315446A1

    公开(公告)日：2015-11-05

    申请号：US14703128

    申请日：2015-05-04

    Applicant: HONEYWELL INTERNATIONAL INC.

    Inventor： Samuel F. Yana Motta ,  Gustavo Pottker ,  Mark W. Spatz

    IPC: C09K5/04

    CPC classification number: C09K5/045 ,  C09K2205/106 ,  C09K2205/122 ,  C09K2205/126 ,  C09K2205/22 ,  C09K2205/40

    Abstract: The present invention relates, in part, to heat transfer compositions, methods, and uses thereof that include (a) from about 17% to about 40% by weight of HFC-32; (b) from about 51% to about 83% by weight of a tetrafluoropropene; and (c) from greater than about 0% to less than about 9% by weight of CO2. The amount of component (c) improves one or more of a capacity, efficiency, discharge temperature, discharge pressure, and/or energy consumption of the composition, particularly in a low or medium temperature refrigeration system and as compared to composition lacking component (c) and/or the refrigerant R-404A.

    Abstract translation: 本发明部分涉及包含（a）约17重量％至约40重量％的HFC-32的热转印组合物，方法和用途; （b）约51％至约83％重量的四氟丙烯; 和（c）大于约0％至小于约9％的CO 2。 组分（c）的量改善组合物的容量，效率，排出温度，排出压力和/或能量消耗中的一种或多种，​​特别是在低或中温制冷系统中，并且与缺少组分的组合物（c ）和/或制冷剂R-404A。

    HEAT TRANSFER COMPOSITIONS AND METHODS
    19.
    发明公开
    HEAT TRANSFER COMPOSITIONS AND METHODS 审中-公开

    公开(公告)号：US20240352298A1

    公开(公告)日：2024-10-24

    申请号：US18758941

    申请日：2024-06-28

    Applicant: HONEYWELL INTERNATIONAL INC.

    Inventor： Ankit Sethi ,  Samuel F. Yana Motta ,  Gustavo Pottker ,  Mark W. Spatz

    IPC: C09K5/04 ,  F25B45/00

    CPC classification number: C09K5/045 ,  F25B45/00 ,  C09K2205/122 ,  C09K2205/126 ,  C09K2205/22 ,  C09K2205/40

    Abstract: Disclosed are methods of retrofitting heat transfer systems containing or designed to containing HFC-134a as the refrigerant comprising: removing at least a portion of said HFC-134a from said system; and introducing into said system a refrigerant comprising at least about 97.5% by weight of the following four components, with each compound being present in the following relative percentages:



    (a) from 2% to about 7% by weight of difluoromethane (HFC-32);
    (b) from 2% to about 7 by weight of pentafluoroethane (HFC-125);
    (c) from about 35% to about 50% by weight of 1,1,1,2-tetrafluoroethane (HFC-134a); and
    (d) from about 50% to about 55% by weight of trans-1,3,3,3-tetrafluoropropene (HFO-1234ze(E)).

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