Improving glide in refrigerant blends and/or azeotopic blends, alternatives to R123 refrigerant, and refrigerant compositions, methods, and systems thereof

Patent metadata

Field	Value
Publication number	US-10400149-B2
Application number	US-201615569272-A
Country	US
Kind code	B2
Filing date	Apr 27, 2016
Priority date	Apr 27, 2015
Publication date	Sep 3, 2019
Grant date	Sep 3, 2019

Abstract

Methods of using refrigerant compositions and systems thereof are described. In particular, methods of using refrigerant compositions and systems thereof, include refrigerant compositions including a two component blend. One of the components is a refrigerant blend that, when first combined, is considered an azeotropic blend, azeotrope, near azeotropic, or the like. This component is one component of the two components of the resulting refrigerant composition, which is combined with a second component being another refrigerant.

First claim

The invention claimed is:

1. A method of reducing temperature glide of a refrigerant composition, comprising:
adding an amount of a first refrigerant to an amount of a second refrigerant to make a first component, the first component is an azeotropic or near azeotropic blend, the first refrigerant is R1336mzz(Z) and the second refrigerant is R1130(E);
adding a second component to the first component, the second component is an amount of a third refrigerant to obtain a resulting refrigerant composition, wherein the third refrigerant is R1233zd(E);
wherein the resulting refrigerant composition thereby exhibits reduced temperature glide, and
wherein a respective weight percent of R1336mzz(Z)/R1130(E)/R1233zd(E) ranges from 67.5 wt %/22.5 wt %/10 wt % to 61.5 wt %/20.5 wt %/18 wt % by weight of the refrigerant composition.

2. The method of claim 1 , wherein the first component is non-flammable, has a global warming potential (GWP) of less than 10, and is a suitable replacement for R123.

3. The method of claim 1 , wherein a weight percentage ratio of R1336mzz(Z) and R1130(E) is at or about 3:1.

4. A system, comprising:
a refrigerant composition including a first component, and a second component, the first component is a refrigerant blend of two refrigerants that, when first combined, is an azeotropic blend, the refrigerant blend including R1336mzz(Z) and R1130(E) to which the second component is added, the second component being a single refrigerant that reduces temperature glide of the refrigerant composition, the single refrigerant being R1233zd(E),
wherein a respective weight percent of R1336mzz(Z)/R1130(E)/R1233zd(E) ranges from 67.5 wt %/22.5 wt %/10 wt % to 61.5 wt %/20.5 wt %/18 wt % by weight of the refrigerant composition.

5. A method of preparing a refrigerant composition, comprising:
adding an amount of a first refrigerant to an amount of a second refrigerant to make a first component, the first component is an azeotropic or near azeotropic blend, the first refrigerant is R1336mzz(Z) and the second refrigerant is R1130(E); and
adding a second component to the first component, the second component is an amount of a third refrigerant to obtain a resulting refrigerant composition, wherein the third refrigerant is R1233zd(E),
wherein the resulting refrigerant composition exhibits reduced temperature glide, and
wherein a respective weight percent of R1336mzz(Z)/R1130(E)/R1233zd(E) ranges from 67.5 wt %/22.5 wt %/10 wt % to 61.5 wt %/20.5 wt %/18 wt % by weight of the refrigerant composition.

6. The method of claim 5 , wherein the adding an amount of the first refrigerant to an amount of the second refrigerant comprises weighing the amount of the first refrigerant and the amount of the second refrigerant, and combining the weighed amount of the first refrigerant with the weighed amount of the second refrigerant,
the adding the second component comprises weighing the amount of the third refrigerant and combining the weighed amount of the third refrigerant with the first component.

7. The method of claim 5 , further comprising reclaiming the first component from a volume of a refrigerant composition from at least one refrigerant container; removing impurities from the reclaimed volume of the refrigerant composition, and combining the first component, which is reclaimed, with the second component.

8. The method of claim 5 , further comprising retrofitting an existing refrigerant composition, wherein the existing refrigerant composition includes the first component, and includes adding the second component at the location of the first component.

Assignees

• Trane Int Inc

Inventors

• Schultz Kenneth J
• Kujak Stephen A

Classifications

• C09K5/045 Primary

  containing only fluorine as halogen · CPC title

• C09K5/044 Primary

  comprising halogenated compounds · CPC title

• C09K2205/122

  Halogenated hydrocarbons · CPC title

• C09K2205/32

  The mixture being azeotropic · CPC title

• C09K2205/40

  Replacement mixtures · CPC title