Working fluid for heat cycle
AssigneeAGC Inc.
InventorsMai TASAKA, Hirokazu TAKAGI, Masato FUKUSHIMA, Toshiyuki TANAKA
Life of this patent
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Abstract
There is provided a working fluid for heat cycle that uses (Z)-1-chloro-2,3,3,3-tetrafluoropropane (HCFO-1224yd(Z)) which has a less impact on the ozone layer, has a less impact on global warming, and has excellent cycle performance, the working fluid for heat cycle having sufficiently ensured stability and having high productivity. The working fluid for heat cycle contains HCFO-1224yd(Z) and an impurity, wherein the impurity includes a specific trace component, and a total content ratio of the trace component to a total amount of the working fluid is less than 1.5 mass %.
Claims8
A working fluid for heat cycle, comprising:
- (Z)-1-chloro-2,3,3,3-tetrafluoropropene;
- and
- an impurity including at least one kind of trace component selected from the group consisting of 1,3-dichloro-1,1,2,2,3-pentafluoropropane, 1,1,1,2-tetrafluoropropane, 1,1-dichloro-2,3,3,3-tetrafluoropropene, (E)-1-chloro-2,3,3,3-tetrafluoropropene, (Z)-2-chloro-1,3,3,3-tetrafluoropropene, (E)-2-chloro-1,3,3,3-tetrafluoropropene, 2,3,3,3-tetrafluoropropene, (Z)-1,3,3,3-tetrafluoropropene, (E)-1,3,3,3-tetrafluoropropene, 1-chloro-3,3,3-trifluoro-1-propyne, fluorohydrocarbon represented by C4H4F4, 2-chloro-1,1,1,2-tetrafluoropropane, 1,1,1,3,3-pentafluoropropane, 2-chloro-1,1,3,3,3-pentafluoro-1-propene, 3,3-dichloro-1,1,1,2,2-pentafluoropropane, 1,1,1,2,2,3,3-heptafluoropropane, methanol, ethanol, acetone, chloroform, and hexane;
- wherein a total content ratio of the trace component to a total amount of the working fluid for heat cycle is less than 1.5 mass %.
Dependencies are inferred from the claim text.