JPH10299576A - Hydrogen fuel supply system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent drying-up of fossil fuel, increase of carbon dioxide gas, air pollution, and warming of the earth by supplying hydrogen obtained by carrying out electrolysis of water to a hydrogen fuel supplying place, and supplying hydrogen to a hydrogen vehicle. SOLUTION: Electricity generated by a power generator 2 is supplied to an electrolysis device 3, and water is decomposed into hydrogen and oxygen by electricity. Hydrogen to be decomposed is pressurized by a compressor 4, and is supplied to a storage chamber 5. And then, it is stored in a hydrogen storage alloy 6 in the storage chamber 5. Hydrogen storage alloy 6 in which hydrogen is stored is carried to a hydrogen fuel supplying place 10 provided in the vicinity of the city, and is entered into a discharging chamber 11. Hydrogen discharged into the discharging chamber 11 is formed as fuel for a hydrogen vehicle 14, and the hydrogen vehicle 14 is traveled by a pump 13. Since fossil fuel is not used in power generation, it is possible to prevent generation of the problem such as drying-up of fossil fuel, increase of carbon dioxide gas, air pollution, and warming of the earth.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a hydrogen fuel supply system for a hydrogen vehicle that runs on hydrogen as a fuel.

[0002]

2. Description of the Related Art Gasoline, light oil, LP are used as fuels for automobiles.
Although there are various types such as G, all are fossil fuels and will be depleted in the near future. In addition, fossil fuel is carbon fixed in ancient times, and burning it increases carbon dioxide gas, causing problems of air pollution and global warming. Therefore, vehicles that run on energy other than fossil fuels are required, and hydrogen vehicles that run on hydrogen are currently being developed. By the way, hydrogen, which is the driving energy of a hydrogen vehicle, is produced by electrolyzing water, and the same problem as described above occurs if the power is obtained from a thermal power plant that generates electricity by burning fossil fuel.

[0003]

Accordingly, the present invention provides a hydrogen fuel supply system for electrolyzing water with electric power generated without using fossil fuels and supplying hydrogen obtained by the electrolysis as fuel for a hydrogen vehicle. It is to provide.

[0004]

SUMMARY OF THE INVENTION In order to achieve the above object, the present invention provides a method for electrolyzing water with electricity generated by natural energy, and using hydrogen obtained by electrolyzing water as a hydrogen fuel supply station. And supplies hydrogen to the hydrogen vehicle at the hydrogen fuel supply station. Since no fossil fuel is used for power generation, problems such as depletion of fossil fuel, increase of carbon dioxide, air pollution, and global warming do not occur.

[0005] Since the natural energy is sunlight, waves, wind or geothermal energy, power generation in a depopulated area where such energy can be used abundantly helps to promote the depopulated area.

Further, the hydrogen is stored in the hydrogen storage alloy and transported to the hydrogen fuel supply station or liquefied and transported to the hydrogen fuel supply station, so that the hydrogen is safe and easy to handle.

[0007]

Embodiments of the present invention will be described below. As shown in FIG. 1, a power plant 1 is provided in a depopulated area such as a remote island or a mountainous area. For example, a solar cell can be used in a place where sunshine is long, a wind power generator can be used in a place where wind is strong, a wave generator can be used in a place where waves are high on an isolated island, and a geothermal generator can be used in a volcanic area.

[0008] The electricity generated by the generator 2 is sent to an electrolyzer 3 where the electricity decomposes water into hydrogen and oxygen, and the decomposed hydrogen is pressurized by a compressor 4 and sent to an occlusion chamber 5. Is stored in the hydrogen storage alloy 6 in the storage chamber 5.

As the hydrogen storage alloy 6, a lanthanum / nickel alloy, an iron / titanium alloy or the like can be used. The lanthanum-nickel alloy is particularly effective when exposed to 3 atmospheres of hydrogen at 20 ° C., absorbing about 3 moles of hydrogen per mole and releasing about 17 atmospheres of hydrogen when heated to 80 ° C.

The storage chamber 5 is cooled by a cooler 7 so that the storage of hydrogen is promoted. This storage room 5
Is 20 ° C. or less when the hydrogen storage alloy 6 is a lanthanum-nickel alloy.

The hydrogen storage alloy 6 storing the hydrogen in this manner is transported to a hydrogen fuel supply station 10 provided near a city and is put into a discharge chamber 11. The release chamber 11 is heated by the heater 12 so that the release of hydrogen from the hydrogen storage alloy 6 is promoted. When the hydrogen storage alloy 6 is a lanthanum-nickel alloy, the heating temperature of the discharge chamber 11 is 80 ° C. or higher.

The hydrogen thus released into the discharge chamber 11 is supplied to the fuel tank of the hydrogen vehicle 14 by the pump 13. The hydrogen vehicle 14 runs using this hydrogen as fuel.

In the above-described embodiment, hydrogen is stored in the hydrogen storage alloy 6 and transported from the power plant 1 to the hydrogen fuel supply station 10, but hydrogen may be liquefied and transported. That is, as shown in FIG. 2, the electricity generated by the generator 2 is sent to an electrolyzer 3, where the electricity decomposes water into hydrogen and oxygen, and the decomposed hydrogen is pressurized by a compressor 4. And sent to the liquefaction chamber 15 to be liquefied. Then, the liquefied hydrogen is put into a hydrogen cylinder 17 by a pump 16 and transported to a hydrogen fuel supply station 10 provided near the city. The hydrogen cylinder 17 transported to the hydrogen fuel supply station 10 is connected to a pump 18 and supplied to the fuel cylinder of the hydrogen vehicle 14 by the pump 18.

The oxygen produced by the electrolyzer 3 of the power plant 1 is pressurized by the compressor 8 and stored in the oxygen cylinder 9 and transported to the city for effective use.

[0015]

As described above, according to the present invention, water is electrolyzed by electricity generated by natural energy, hydrogen obtained by electrolyzing water is carried to a hydrogen fuel supply station, and the hydrogen fuel supply is performed. Supply hydrogen to automobiles. Since no fossil fuel is used for power generation, problems such as depletion of fossil fuel, increase of carbon dioxide, air pollution, and global warming do not occur.

[Brief description of the drawings]

FIG. 1 is a conceptual diagram showing a hydrogen fuel supply system of the present invention.

FIG. 2 is a conceptual diagram showing another embodiment of the hydrogen fuel supply system of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Power plant 2 Generator 3 Electrolysis device 4, 8 Compressor 5 Storage room 6 Hydrogen storage alloy 7 Cooler 9 Oxygen cylinder 10 Hydrogen fuel supply station 11 Release room 12 Heater 13, 16, 18 Pump 14 Hydrogen vehicle 15 Liquefaction room 17 Hydrogen cylinder

Claims (4)

[Claims] 1. Hydrolysis of water with electricity generated by natural energy, transporting hydrogen obtained by electrolyzing water to a hydrogen fuel supply station, and supplying hydrogen to the hydrogen vehicle at the hydrogen fuel supply station A hydrogen fuel supply system characterized by the following. 2. The hydrogen fuel supply system according to claim 1, wherein the natural energy is sunlight, waves, wind, or geothermal. 3. The hydrogen fuel supply system according to claim 1, wherein the hydrogen is stored in a hydrogen storage alloy and transported to a hydrogen fuel supply station. 4. The hydrogen fuel supply system according to claim 1, wherein the hydrogen is liquefied and transported to a hydrogen fuel supply station.