Refrigerants containing (e)-1,1,1,4,4,4-hexafluorobut-2-ene

Patent metadata

Field	Value
Publication number	US-2016115362-A1
Application number	US-201614990546-A
Country	US
Kind code	A1
Filing date	Jan 7, 2016
Priority date	Nov 25, 2010
Publication date	Apr 28, 2016
Grant date	—

Abstract

A composition including (E)-1,1,1,4,4,4-hexafluorobat-2-ene as a mixture with at least one hydrocarbon, hydrofluorocarbon or fluoroolefin compound having a boiling point less than or equal to −12° C., and also to the use of this composition as a heat transfer fluid. A process for reducing the environmental impact of heat-transfer equipment including a vapor compression circuit containing an initial heat-transfer fluid, said process comprising a step replacing the initial heat-transfer fluid in the vapor compression circuit with a final heat-transfer fluid, the final heat-transfer fluid having a GWP which is lower than the initial heat-transfer fluid, wherein the final heat-transfer fluid is the above composition.

First claim

1 . A composition comprising (E)-1,1,1,4,4,4-hexafluorobut-2-ene and at least one compound having a boiling point less than or equal to −12° C. at a pressure of 101.325 KPa selected from the group consisting of an ether, a hydrofluoroether and a fluoroolefin.

2 - 3 . (canceled)

4 . The composition as claimed in claim 1 , wherein the composition comprises a mixture selected from the group consisting of:
(E)-1,1,1,4,4,4-hexafluorobut-2-ene, 1,1,1,2-tetrafluoroethane and 1,3,3,3-tetrafluoropropene; (E)-1,1,1,4,4,4-hexafluorobut-2-ene, 1,1,1,2-tetrafluoroethane and 2,3,3,3-tetrafluoropropene; (E)-1,1,1,4,4,4-hexafluorobut-2-ene, 1,1,1,2-tetrafluoroethane and 3,3,3-trifluoropropene; (E)-1,1,1,4,4,4-hexafluorobut-2-ene, isobutane and 1,3,3,3-tetrafluoropropene; (E)-1,1,1,4,4,4-hexafluorobut-2-ene, isobutane and 2,3,3,3-tetrafluoropropene; (E)-1,1,1,4,4,4-hexafluorobut-2-ene, isobutane and 1,1-difluoroethane; (E)-1,1,1,4,4,4-hexafluorobut-2-ene, isobutane and propane; (E)-1,1,1,4,4,4-hexafluorobut-2-ene, 3,3,3-trifluoropropene and 2,3,3,3-tetrafluoropropene; (E)-1,1,1,4,4,4-hexafluorobut-2-ene, 3,3,3-trifluoropropene and 1,3,3,3-tetrafluoropropene; (E)-1,1,1,4,4,4-hexafluorobut-2-ene, 3,3,3-trifluoropropene and isobutane; (E)-1,1,1,4,4,4-hexafluorobut-2-ene, 3,3,3-trifluoropropene and 1,1-difluoroethane; (E)-1,1,1,4,4,4-hexafluorobut-2-ene, 3,3,3-trifluoropropene and propane; (E)-1,1,1,4,4,4-hexafluorobut-2-ene, 1,3,3,3-tetrafluoropropene and 2,3,3,3-tetrafluoropropene; (E)-1,1,1,4,4,4-hexafluorobut-2-ene, 1,3,3,3-tetrafluoropropene and propane; (E)-1,1,1,4,4,4-hexafluorobut-2-ene, 1,3,3,3-tetrafluoropropene and 1,1-difluoroethane; (E)-1,1,1,4,4,4-hexafluorobut-2-ene, 2,3,3,3-tetrafluoropropene and propane; (E)-1,1,1,4,4,4-hexafluorobut-2-ene, 2,3,3,3-tetrafluoropropene and 1,1-difluoroethane; (E)-1,1,1,4,4,4-hexafluorobut-2-ene, pentafluoroethane and 1,3,3,3-tetrafluoropropene; (E)-1,1,1,4,4,4-hexafluorobut-2-ene, pentafluoroethane and 2,3,3,3-tetrafluoropropene; and (E)-1,1,1,4,4,4-hexafluorobut-2-ene, pentafluoroethane and 3,3,3-trifluoropropene.

5 . The composition as claimed in claim 1 , wherein the difference between the liquid saturation pressure and the vapor saturation pressure at a temperature of −5° C. is less than or equal to 10% of the liquid saturation pressure, and wherein the composition comprises:
from 1% to 8% of (E)-1,1,1,4,4,4-hexafluorobut-2-ene and from 92% to 99% of 2,3,3,3-tetrafluoropropene; or
from 1% to 12% of (E)-1,1,1,4,4,4-hexafluorobut-2-ene and from 88% to 99% of 1,3,3,3-tetrafluoropropene; or
from 1% to 9% of (E)-1,1,1,4,4,4-hexafluorobut-2-ene and from 91% to 99% of 1,1,1,2-tetrafluoroethane; or
from 1% to 6% of (E)-1,1,1,4,4,4-hexafluorobut-2-ene and from 94% to 99% of difluoromethane; or
from 1% to 17% of (E)-1,1,1,4,4,4-hexafluorobut-2-ene and from 83% to 99% of 1,1-difluoroethane; or
from 1% to 26% of (E)-1,1,1,4,4,4-hexafluorobut-2-ene and from 74% to 99% of propane; or
from 1% to 10% of (E)-1,1,1,4,4,4-hexafluorobut-2-ene and from 90% to 99% of 3,3,3-trifluoropropene; or
from 1% to 10% of (E)-1,1,1,4,4,4-hexafluorobut-2-ene, from 1% to 98% of 1,1,1,2-tetrafluoroethane and from 1% to 98% of 1,3,3,3-tetrafluoropropene; or
from 1% to 8% of (E)-1,1,1,4,4,4-hexafluorobut-2-ene, from 1% to 98% of 1,1,1,2-tetrafluoroethane and from 1% to 98% of 2,3,3,3-tetrafluoropropene; or
from 1% to 8% of (E)-1,1,1,4,4,4-hexafluorobut-2-ene, from 1% to 98% of 2,3,3,3-tetrafluoropropene and from 1% to 98% of 3,3,3-trifluoropropene; or
from 1% to 8% of (E)-1,1,1,4,4,4-hexafluorobut-2-ene, from 1% to 98% of 1,1,1,2-tetrafluoroethane and from 1% to 98% of 3,3,3-trifluoropropene; or
from 1% to 8% of (E)-1,1,1,4,4,4-hexafluorobut-2-ene, from 1% to 98% of 2,3,3,3-tetrafluoropropene and from 1% to 98% of 1,3,3,3-tetrafluoropropene; or
from 1% to 20% of (E)-1,1,1,4,4,4-hexafluorobut-2-ene, from 1% to 98% of 2,3,3,3-tetrafluoropropene and from 1% to 98% of propane; or
from 1% to 13% of (E)-1,1,1,4,4,4-hexafluorobut-2-ene, from 1% to 98% of 2,3,3,3-tetrafluoropropene and from 1% to 98% of 1,1-difluoroethane; or
from 1% to 15% of (E)-1,1,1,4,4,4-hexafluorobut-2-ene, from 1% to 98% of 1,3,3,3-tetrafluoropropene and from 1% to 98% of 1,1-difluoroethane; or
from 1% to 20% of (E)-1,1,1,4,4,4-hexafluorobut-2-ene, from 1% to 98% of 1,3,3,3-tetrafluoropropene and from 1% to 98% of propane.

6 . (canceled)

7 . (canceled)

8 . A heat-transfer composition comprising the composition as claimed in claim 1 and also one or more additives chosen from lubricants, stabilizers, surfactants, tracers, fluorescent agents, odorous agents and solubilizing agents, and mixtures thereof.

9 . Heat-transfer equipment comprising a vapor compression circuit containing a composition as claimed in claim 1 .

10 . The heat-transfer equipment as claimed in claim 9 , selected from mobile heat-pump heating or stationary heat-pump heating, air conditioning, refrigeration equipment and freezing equipment, and Rankine cycles.

11 . A process for heating or cooling a fluid or a body by means of a vapor compression circuit containing a heat-transfer fluid, said process successively comprising evaporation of the heat-transfer fluid, compression of the heat-transfer fluid, condensation of the heat-transfer fluid and expansion of the heat-transfer fluid, wherein the heat-transfer fluid is a composition as claimed in claim 1 .

12 . The process as claimed in claim 11 , comprising a process for cooling a fluid or a body, wherein the temperature of the fluid or of the body cooled is from −15° C. to 15° C.

13 . A process for reducing the environmental impact of heat-transfer equipment comprising a vapor compression circuit containing an initial heat-transfer fluid, said process comprising a step replacing the initial heat-transfer fluid in the vapor compression circuit with a final heat-transfer fluid, the final heat-transfer fluid having a GWP which is lower than the initial heat-transfer fluid, wherein the final heat-transfer fluid is a composition as claimed in claim 1 .

14 . The composition of claim 1 , wherein the difference between the liquid saturation pressure and the vapor saturation pressure at a temperature of −5° C. is less than or equal to 10% of the liquid saturation pressure.

15 . The composition as claimed in claim 14 , wherein the difference between the liquid saturation pressure and the vapor saturation pressure at a temperature of −5° C. is less than or equal to 5% of the liquid saturation pressure.

16 . The composition as claimed in claim 1 , wherein the at least one compound includes an ether.

17 . The composition as claimed in claim 1 , wherein the at least one compound includes a hydrofluoroether.

18 . The composition as claimed in claim 1 , wherein the at least one compound includes a fluoroolefin.

19 . The process as claimed in claim 12 , comprising a process for cooling a fluid or a body, wherein the temperature of the fluid or of the body cooled is from −10° C. to 10° C.

20 . The process as claimed in claim 19 , comprising a process for cooling a fluid or a body, wherein the temperature of the fluid or of the body cooled is from −5° C. to 5° C.

21 . The process as claimed in claim 11 , comprising a process for heating a fluid or a body, wherein the temperature of the fluid or of the body heated is from 30° C. to 90° C.

22 . The process as claimed in claim 21 , comprising a process for heating a fluid or a body, wherein the temperature of the fluid or o

Assignees

• Arkema France

Inventors

• Rached Wissam

Classifications

• C09K2205/12

  Hydrocarbons · CPC title

• F25B29/003

  of the compression type system · CPC title

• C09K2205/11

  Ethers · CPC title

• C09K5/045 Primary

  containing only fluorine as halogen · CPC title

• F25B1/00

  Compression machines, plants or systems with non-reversible cycle (F25B3/00, F25B5/00, F25B6/00, F25B7/00, F25B9/00 take precedence) · CPC title