Compositions comprising 1,2-dichloro-1,2-difluoroethylene for use in heat transfer applications

Patent metadata

Field	Value
Publication number	US-12180407-B2
Application number	US-201917279622-A
Country	US
Kind code	B2
Filing date	Oct 3, 2019
Priority date	Oct 5, 2018
Publication date	Dec 31, 2024
Grant date	Dec 31, 2024

Abstract

This invention relates to compositions comprising 1,2-dichloro-1,2-difluoroethylene (i.e., CFO-1112) and an additional component. The compositions described herein may be useful, for example, in heat transfer applications.

First claim

What is claimed is:

1. A composition, comprising:
i) 15-99 wt % 1,2-dichloro-1,2-difluoroethylene; and
ii) 85-1 wt % R-1336mzzZ.

2. The composition of claim 1 , wherein the composition comprises about 50 to about 99 weight percent 1,2-dichloro-1,2-difluoroethylene and about 50 to about 1 weight percent R-1336mzzZ.

3. A method for producing cooling, comprising evaporating a composition in the vicinity of a body to be cooled, and thereafter condensing said composition, the composition comprising:
i) 15-99 wt % 1,2-dichloro-1,2-difluoroethylene; and
ii) 85-1 wt % R-1336mzzZ.

4. A method for producing heating, comprising condensing a composition in the vicinity of a body to be heated, and thereafter evaporating said composition, the composition comprising:
i) 15-99 wt % 1,2-dichloro-1,2-difluoroethylene; and
ii) 85-1 wt % R-1336mzzZ.

5. A refrigeration, air-conditioning, or heat pump apparatus comprising a composition, that comprises:
i) 15-99 wt % 1,2-dichloro-1,2-difluoroethylene; and
ii) 85-1 wt % R-1336mzzZ.

6. The refrigeration, air-conditioning, or heat pump apparatus of claim 5 , comprising a chiller apparatus.

7. The refrigeration, air-conditioning, or heat pump apparatus of claim 6 , comprising a centrifugal chiller apparatus.

8. The refrigeration, air-conditioning, or heat pump apparatus of claim 7 , wherein said high temperature heat pump comprises a centrifugal compressor.

9. The refrigeration, air-conditioning, or heat pump apparatus of claim 6 , comprising a screw or scroll chiller apparatus.

10. The refrigeration, air-conditioning, or heat pump apparatus of claim 5 , comprising a high temperature heat pump.

11. A process for replacing an incumbent refrigerant in a refrigeration apparatus or a refrigeration system, comprising substantially replacing said incumbent refrigerant with a composition, comprising:
i) 15-99 wt % 1,2-dichloro-1,2-difluoroethylene; and
ii) 85-1 wt % R-1336mzzZ.

12. The process of claim 11 , wherein the incumbent refrigerant is selected from R-123, R-245fa, R-236fa, R-124, R-134a, R-22, and R-401A.

13. The process of claim 11 , wherein the replacement refrigerant composition exhibits a cooling capacity that is within about ±15% of the cooling capacity of the incumbent refrigerant.

14. A method of transferring heat comprising transporting a composition from a heat source to a heat sink, the composition comprising:
i) 15-99 wt % 1,2-dichloro-1,2-difluoroethylene; and
ii) 85-1 wt % R-1336mzzZ.

15. The method of claim 14 , wherein the transferring of heat is in a heat pipe.

16. The method of claim 14 , wherein the transferring of heat is in a constant conductance heat pipe or a thermosyphon.

17. The method of claim 14 , wherein the transferring of heat is in an immersion cooler.

Assignees

• Chemours Co Fc Llc

Inventors

• Simoni Luke David
• Minor Barbara Haviland
• Kontomaris Konstantinos
• Petrov Viacheslav A

Classifications

• F25B45/00

  Arrangements for charging or discharging refrigerant · CPC title

• C09K2205/43

  Type R22 · CPC title

• C09K2205/24

  Only one single fluoro component present · CPC title

• C09K2205/22

  All components of a mixture being fluoro compounds · CPC title

• C09K2205/126

  Unsaturated fluorinated hydrocarbons · CPC title