Method for producing hydrogen gas-containing material and device for producing hydrogen gas-containing material
There are provided a method for producing a hydrogen gas-containing material in which higher safety than in a production method of the related art is secured and which is simple and has high production efficiency, and a method for producing a hydrogen gas-containing material and a device for producing a hydrogen gas-containing material in which it is possible to prevent nitrogen gas from being mixed into the hydrogen gas-containing material produced by the production method and it is easy to control an amount of hydrogen contained in the hydrogen gas-containing material. As one aspect, there is provided a method for producing a hydrogen gas-containing material including mixing a liquid composition containing a gelling agent or a thickener and a liquid medium with hydrogen gas in a line mixer ( 20 ) and cooling the liquid composition containing hydrogen gas in a liquid-transfer pipe ( 22 ) connected to the line mixer ( 20 ) and causing the liquid composition containing hydrogen gas to gel or thicken.
1 . A method for producing a hydrogen gas-containing material, the method comprising:
mixing a first liquid composition with a hydrogen gas in a line mixer, thereby producing a second liquid composition comprising the hydrogen gas, wherein the first liquid composition and the second liquid composition are both in liquid state;
cooling the second liquid composition in a liquid-transfer pipe connected to the line mixer and causing the second liquid composition to gel or thicken, thereby forming the hydrogen gas-containing material; and
filling the hydrogen gas-containing material into a filling container at an end part of the liquid-transfer pipe;
wherein the mixing, the cooling, and the filling are performed without exposing to outside air,
wherein the first liquid composition comprises:
a liquid medium; and
a gelling agent or thickener,
wherein the mixing is at a first temperature that is higher than a gelling temperature of the gelling agent when the first liquid composition comprises the gelling agent, and higher than a temperature at which thickening is prevented in the thickener when the first liquid composition comprises the thickener, and
wherein the cooling is to a second temperature that is lower than the gelling temperature of the gelling agent when the first liquid composition comprises the gelling agent, and lower than the temperature at which thickening is prevented in the thickener when the first liquid composition comprises the thickener.
2 . The method according to claim 1 ,
wherein the second liquid composition in the liquid-transfer pipe is further cooled using an additional cooler.
3 . The method according to claim 1 ,
wherein the first liquid composition is transferred as a liquid to the line mixer using a pump.
4 . The method according to claim 1 , further comprising:
preparing the first liquid composition by mixing the gelling agent or the thickener, and the liquid medium in the line mixer prior to the mixing with the hydrogen gas.
5 . The method according to claim 4 , further comprising:
circulating the first liquid composition through a circulation path including the line mixer prior to the mixing with the hydrogen gas.
6 . The method according to claim 1 , wherein:
the liquid-transfer pipe has a first end directly connected to the line mixer and a second end directly connected to the filling container.
7 . The method according to claim 1 , wherein:
the first liquid composition comprises the gelling agent,
the mixing is at the first temperature that is higher than the gelling temperature of the gelling agent, and
the cooling is to the second temperature that is lower than the gelling temperature of the gelling agent.
8 . A device for producing a hydrogen gas-containing material, the device comprising:
a line mixer for mixing a first liquid composition with a hydrogen gas, thereby producing a second liquid composition comprising the hydrogen gas, wherein the first liquid composition and the second liquid composition are both in liquid state;
a liquid-transfer pipe connected to the line mixer;
a cooler for cooling the second liquid composition in the liquid-transfer pipe connected to the line mixer and causing the second liquid composition to gel or thicken, thereby forming the hydrogen gas-containing material;
a filling container at an end part of the liquid-transfer pipe; and
a filling device for filling the hydrogen gas-containing material into the filling container at the end part of the liquid-transfer pipe,
wherein the mixing, the cooling, and the filling are performed without exposing to outside air,
wherein the first liquid composition comprises:
a liquid medium; and
a gelling agent or thickener,
wherein the mixing is at a first temperature that is higher than a gelling temperature of the gelling agent when the first liquid composition comprises the gelling agent, and higher than a temperature at which thickening is prevented in the thickener when the first liquid composition comprises the thickener, and
wherein the cooling is to a second temperature that is lower than the gelling temperature of the gelling agent when the first liquid composition comprises the gelling agent, and lower than the temperature at which thickening is prevented in the thickener when the first liquid composition comprises the thickener.
9 . The device according to claim 8 , further comprising:
a pump that transfers the first liquid composition as a liquid to the line mixer.
10 . The device according to claim 8 , wherein:
the filling device is connected to the end part of the liquid-transfer pipe.
11 . The device according to claim 8 , wherein:
the line mixer is in a circulation path.
12 . The device according to claim 11 , further comprising:
a line switching unit for switching liquid transfer to the circulation path to liquid transfer to the liquid-transfer pipe.