Method for producing working fluid
First Claim
1. A method for producing a working fluid containing trifluoroethylene in a proportion of at most 70 mol % based on the entire amount, which comprises mixing a first component containing trifluoroethylene in a proportion of higher than 70 mol % stored in a first container, and a second component having no self-decomposition property containing at least one member selected from a saturated hydrofluorocarbon, an unsaturated hydrofluorocarbon, an unsaturated hydrochlorofluorocarbon and an unsaturated chlorofluorocarbon in a proportion of at least 30 mol %, stored in a second container, by the following step (A), (B) or (C):
- (A) the first component is supplied to the second container under the following condition (1) or (2);
(1) the temperature (t1) of the first component at the time of the supply is t1<
0.5°
C., and at least during the period from the start of the supply to the completion of mixing, the relation between the gauge pressure (P2) in the second container and the gauge pressure (p1) of the first component at the time of the supply is kept to be p1>
P2, and the temperature (T2) in the second container is kept to be in a state of T2<
0.5°
C.;
(2) the first component at the time of the supply is in a gaseous state with its temperature (t1) of 0.5°
C.≤
t1≤
180°
C. and its gauge pressure (p1) of p1[MPa]<
1.05−
0.0025t1, and at least during the period from the start of the supply to the completion of mixing, the relation between the gauge pressure (P2) in the second container and the gauge pressure (p1) of the first component is kept to be p1>
P2, and the temperature (T2) in the second container is kept to be in a state of T2≤
180°
C. and T2<
(1.05−
p1)/0.0025;
(B) the second component is supplied to the first container under the following conditions (3) and (4);
(3) at least during the period from the start of the supply to the completion of mixing, the temperature (T1) and the gauge pressure (P1) in the first container are kept to be in a state of T1<
0.5°
C. or in a state of 0.5°
C.≤
T1≤
180°
C. and P1[MPa]<
1.05−
0.0025T1,(4) the gauge pressure (p2) of the second component is p2>
P1 at least at the time of the supply;
(C) to a separate third container, while at least during the period from the start of the following supply to the completion of mixing, the temperature (T3) and the gauge pressure (P3) in the third container are kept to be in a state of T3<
0.5°
C. or in a state of 0.5°
C.≤
T3≤
180°
C. and P3[MPa]<
1.05−
0.0025T3, the first component is supplied under the following condition (5) or (6), and the second component is supplied while at least at the time of the supply, its gauge pressure (p2) is kept to be p2>
P3;
(5) the temperature (t1) of the first component at the time of the supply is t1<
0.5°
C., and at least during the period from the start of the supply to the completion of mixing, the relation between the gauge pressure (P3) in the third container and the gauge pressure (p1) of the first component at the time of the supply is kept to be p1>
P3, and the temperature (T3) in the third container is kept to be in a state of T3<
0.5°
C.;
(6) the first component at the time of the supply is in a gaseous state with its temperature (t1) of 0.5°
C.≤
T1≤
180°
C. and its gauge pressure (p1) of p1[MPa]<
1.05−
0.0025t1, and at least during the period from the start of the supply to the completion of mixing, the relation between the gauge pressure (P3) in the third container and the gauge pressure (p1) of the first component is kept to be p1>
P3, and the temperature (T3) in the third container is kept to be in a state of T3≤
180°
C. and T3<
(1.05−
p1)/0.0025.
2 Assignments
0 Petitions
Accused Products
Abstract
To provide a method for stably and efficiently producing a working fluid which has less influence over global warming and which can be stably used by a usual operation even though it contains trifluoroethylene (HFO-1123) excellent in the cycle performance.
A method for producing a working fluid containing HFO-1123 in a proportion of at most 70 mol %, which comprises mixing a first component containing HFO-1123 in a proportion of higher than 70 mol % stored in a first container, and a second component having no self-decomposition property stored in a second container, by supplying the first component to the second container, by supplying the second component to the first container, or by supplying both the first component and the second component to a separate third container, respectively under the predetermined conditions.
10 Citations
12 Claims
-
1. A method for producing a working fluid containing trifluoroethylene in a proportion of at most 70 mol % based on the entire amount, which comprises mixing a first component containing trifluoroethylene in a proportion of higher than 70 mol % stored in a first container, and a second component having no self-decomposition property containing at least one member selected from a saturated hydrofluorocarbon, an unsaturated hydrofluorocarbon, an unsaturated hydrochlorofluorocarbon and an unsaturated chlorofluorocarbon in a proportion of at least 30 mol %, stored in a second container, by the following step (A), (B) or (C):
-
(A) the first component is supplied to the second container under the following condition (1) or (2); (1) the temperature (t1) of the first component at the time of the supply is t1<
0.5°
C., and at least during the period from the start of the supply to the completion of mixing, the relation between the gauge pressure (P2) in the second container and the gauge pressure (p1) of the first component at the time of the supply is kept to be p1>
P2, and the temperature (T2) in the second container is kept to be in a state of T2<
0.5°
C.;(2) the first component at the time of the supply is in a gaseous state with its temperature (t1) of 0.5°
C.≤
t1≤
180°
C. and its gauge pressure (p1) of p1[MPa]<
1.05−
0.0025t1, and at least during the period from the start of the supply to the completion of mixing, the relation between the gauge pressure (P2) in the second container and the gauge pressure (p1) of the first component is kept to be p1>
P2, and the temperature (T2) in the second container is kept to be in a state of T2≤
180°
C. and T2<
(1.05−
p1)/0.0025;(B) the second component is supplied to the first container under the following conditions (3) and (4); (3) at least during the period from the start of the supply to the completion of mixing, the temperature (T1) and the gauge pressure (P1) in the first container are kept to be in a state of T1<
0.5°
C. or in a state of 0.5°
C.≤
T1≤
180°
C. and P1[MPa]<
1.05−
0.0025T1,(4) the gauge pressure (p2) of the second component is p2>
P1 at least at the time of the supply;(C) to a separate third container, while at least during the period from the start of the following supply to the completion of mixing, the temperature (T3) and the gauge pressure (P3) in the third container are kept to be in a state of T3<
0.5°
C. or in a state of 0.5°
C.≤
T3≤
180°
C. and P3[MPa]<
1.05−
0.0025T3, the first component is supplied under the following condition (5) or (6), and the second component is supplied while at least at the time of the supply, its gauge pressure (p2) is kept to be p2>
P3;(5) the temperature (t1) of the first component at the time of the supply is t1<
0.5°
C., and at least during the period from the start of the supply to the completion of mixing, the relation between the gauge pressure (P3) in the third container and the gauge pressure (p1) of the first component at the time of the supply is kept to be p1>
P3, and the temperature (T3) in the third container is kept to be in a state of T3<
0.5°
C.;(6) the first component at the time of the supply is in a gaseous state with its temperature (t1) of 0.5°
C.≤
T1≤
180°
C. and its gauge pressure (p1) of p1[MPa]<
1.05−
0.0025t1, and at least during the period from the start of the supply to the completion of mixing, the relation between the gauge pressure (P3) in the third container and the gauge pressure (p1) of the first component is kept to be p1>
P3, and the temperature (T3) in the third container is kept to be in a state of T3≤
180°
C. and T3<
(1.05−
p1)/0.0025. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
-
Specification