JP2002249031A - Hydrogen supply stand - Google Patents

Abstract

PROBLEM TO BE SOLVED: To produce hydrogen and supply it stably at a low cost. SOLUTION: This hydrogen feed stand, supplying hydrogen to a hydrogen vehicle using hydrogen as power fuel, is constituted of at least two types of hydrogen producing means 2, 3, 4 with different energy sources used to produce hydrogen, a hydrogen storage means 6 for storing hydrogen produced by the respective hydrogen producing means 2, 3, 4, a hydrogen production control means 1 capable of individual control of supply/no supply of hydrogen from the hydrogen producing means 2, 3, 4 to the hydrogen storage means 6, and a hydrogen metering and supplying means 7 of metering and supplying hydrogen stored in the hydrogen storage means 6 to the hydrogen vehicle.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a hydrogen supply station for supplying hydrogen to a hydrogen vehicle using hydrogen as power fuel.

[0002]

2. Description of the Related Art In recent years, electric power can be obtained when hydrogen is converted into water for the purpose of eliminating air pollution caused by automobiles from the viewpoint of reducing carbon dioxide emission which causes global warming. The development of a fuel cell vehicle, which is one of hydrogen vehicles using a fuel cell and driving a motor with electric power from the fuel cell to obtain power, has been rapidly progressing.

Since these fuel cells generate electric power by converting hydrogen into water as described above, it is necessary to supply hydrogen as a raw material to the fuel cells. A vehicle is equipped with a raw fuel such as gasoline or alcohol composed of naphtha or the like containing a saturated hydrocarbon as a main component, and a hydrogen converter for generating hydrogen therefrom. A technique has been used in which hydrogen is generated from raw fuel and supplied to the fuel cell to obtain electric power.

[0004] However, the method of mounting these hydrogen converters on each vehicle is disadvantageous in that the hydrogen converters are relatively expensive and the unit price of the vehicle itself becomes high, and the weight of the vehicle itself is increased by mounting these hydrogen converters. Since hydrogen gas is generated at a relatively high temperature in order to obtain the required hydrogen using the smallest possible hydrogen converter, nitrogen oxides and carbon dioxide In view of the possibility of generation, a fuel cell vehicle using hydrogen gas itself stored in a hydrogen storage alloy or a hydrogen tank without using such a hydrogen converter is being studied.

[0005] In the case of a fuel cell vehicle in which hydrogen itself is stored in the vehicle without installing a hydrogen converter, when the remaining amount of hydrogen to be stored becomes small, it is necessary to supply hydrogen similarly to conventional gasoline. Therefore, the development of a hydrogen supply station, which is a hydrogen supply point that can supply these hydrogen to fuel cell vehicles, is indispensable for the spread of fuel cell vehicles that store hydrogen themselves in vehicles. In the method of producing hydrogen at a production plant and transporting it in the same way as conventional gasoline, hydrogen gas is flammable and dangerous, and the pressure of hydrogen must be increased in order to transport a larger amount of hydrogen in one transportation. Methods such as high-pressure or cooling and liquefaction are required, and equipment for handling these high-pressure hydrogen and cryogenic liquefied hydrogen is required, so transportation is required. There is a problem, such as a strike is increased, a technique for generating these hydrogen at the stand have been studied.

[0006]

However, as a method that can be mainly used as these generation methods, a method of electrolysis of water using electric power can be considered, but when these general electric powers are used, In Japan, where the price of electricity is very high, the cost of using electricity is high and the price of hydrogen obtained is extremely high.Fossil fuels and the like are also used to generate these electricity. Although carbon dioxide is generated, it is considered to use power from sunlight or wind as these powers, but when hydrogen is generated using natural energy such as sunlight or wind, Sufficient electric power may not be obtained when needed, and it will not only be impossible to supply hydrogen, but also if one of the hydrogen generating means fails, etc. Generation of hydrogen becomes impossible, and there is a problem that stable supply of hydrogen cannot be performed. In addition, if hydrogen is not produced at a lower cost, profit cannot be obtained, and the maintenance of the hydrogen supply stand is hindered. There was also a problem.

Therefore, the present invention has been made in view of the above problems, and has as its object to provide a hydrogen supply station that can generate hydrogen and stably supply cheaper hydrogen.

[0008]

In order to solve the above-mentioned problems, a hydrogen supply station according to the present invention is a hydrogen supply station for supplying hydrogen to a hydrogen vehicle using hydrogen as power fuel, the hydrogen supply station comprising: At least two types of hydrogen generating means that use different energy sources, hydrogen storing means for storing hydrogen generated by each of the hydrogen generating means, and hydrogen storing means from each of the hydrogen generating means to the hydrogen storing means. Hydrogen supply control means capable of individually controlling the implementation and non-execution of hydrogen supply, and hydrogen measurement supply means for measuring and supplying hydrogen stored in the hydrogen storage means to a hydrogen vehicle, I have. According to this feature, not only can hydrogen be provided at a lower cost by the hydrogen generation controller selecting hydrogen generation by selecting a production method that is most cost effective at that time, In a case where sufficient hydrogen cannot be obtained by the inexpensive hydrogen generating means or when a problem occurs in the generating means, by appropriately controlling the other hydrogen generating means to generate hydrogen,
Hydrogen can be generated and supplied stably.

In the hydrogen supply station of the present invention, it is preferable that one of the hydrogen generating means is a fuel reforming means for generating hydrogen from at least one fuel of gasoline, alcohol fuel or liquefied natural gas (LNG). In this way, hydrogen can be generated using conventional gasoline or alcohol fuel or liquefied natural gas (LNG),
Conventional gas station equipment can be used.

[0010] In the hydrogen supply stand of the present invention, it is preferable that the fuel reforming means is a microbial fuel reforming means for obtaining hydrogen from fuel using microorganisms. In this way, the amount of carbon dioxide generated due to fuel reforming can be reduced.

In the hydrogen supply stand of the present invention, it is preferable that one of the hydrogen generating means is a photo-water splitting means including a photocatalyst for generating water by decomposing water by irradiating sunlight. In this case, hydrogen can be obtained inexpensively and efficiently using sunlight.

[0012] In the hydrogen supply stand of the present invention, one of the hydrogen generating means is an electrolyzing means for electrolyzing water to generate hydrogen, and supplies electric power used in the electrolyzing means. Preferably, a wind power generation means is provided. In this way, hydrogen can be obtained at low cost using the power generated by wind power generation.

[0013] In the hydrogen supply stand according to the present invention, it is preferable that the electric water splitting means can use normal power transmission. In this way, when power from the wind power cannot be obtained, hydrogen can be urgently generated using normal power transmission.

[0014]

Embodiments of the present invention will be described below with reference to the drawings. (Embodiment) FIG. 1 is a system diagram showing a configuration of a hydrogen supply stand of the present embodiment, and FIG. 2 is a diagram of a bacterial fuel reformer 2 which is one of hydrogen generating means used in the present embodiment. FIG. 3 is a system flow diagram showing the configuration, and FIG. 3 is an external perspective view showing a solar water splitting panel constituting a solar water splitting device 3 which is one of the hydrogen generating means used in the present embodiment. 4
FIG. 5 is a cross-sectional view illustrating a configuration of the solar water splitting panel used in the present embodiment. FIG. 5 is a diagram illustrating a configuration of a fuel cell device 4 which is one of the hydrogen generating units used in the present embodiment. It is.

First, as shown in FIG. 1, the main structure of the hydrogen supply stand of the present embodiment is as follows: a bacterial type fuel reformer 2, a solar water splitter 3, and a fuel cell device 4;
Hydrogen can be generated using various types of hydrogen generating means. These various hydrogen generating means are connected to these devices to control the operation / non-operation of each device, and are these various hydrogen generating means. Electromagnetic valves (V5 to V8) including electromagnetic valves V1, V2, and V3 installed between the receiver tank 5 to which the hydrogen gas generated in each device is supplied and each device, and various electric pumps (P1) To P3) and the like, and is connected to the control device 1 connected to various devices so that hydrogen can be generated by appropriately selecting a device for supplying hydrogen to the receiver tank 5.

The hydrogen generated by these three types of hydrogen generating means, ie, the bacterial fuel reformer 2, the solar water splitter 3 and the fuel cell device 4, is supplied to the receiver tank 5 and supplied to the booster pump P3. The pressure is increased to a relatively high pressure and stored in a high-pressure hydrogen gas cylinder 6 as a hydrogen storage means. In the present embodiment, the high-pressure hydrogen gas cylinder 6 is used for the hydrogen storage means. However, the present invention is not limited to this. The hydrogen tank containing a hydrogen storage alloy in place of the high-pressure hydrogen gas cylinder 6 is used. Etc. may be used.

The high-pressure hydrogen gas stored in these high-pressure hydrogen gas cylinders 6 is charged into a hydrogen tank of a hydrogen fuel cell vehicle HC through a hydrogen gas filling machine 7. The hydrogen gas filling machine 7 used in this embodiment will be described. In the hydrogen gas filling machine 7, a high pressure supplied from the high pressure hydrogen gas cylinder 6 to a predetermined pressure set by the filling gas pressure setting section 73 is set. Pressure reducing valve 7 for reducing the pressure of hydrogen gas
And heating or cooling such that the temperature of the decompressed hydrogen gas is maintained at a predetermined temperature, and the hydrogen gas from the hydrogen tank of the hydrogen fuel cell vehicle HC is maintained at a predetermined temperature when filling the hydrogen gas. Possible chiller unit 7
2 and a hydrogen gas meter 71 for measuring the capacity of the hydrogen gas to be filled therein, and the charging pressure is set by the charging gas pressure setting unit 73 according to the type of the hydrogen fuel cell vehicle HC to be charged. It can be changed.

As in the hydrogen gas filling machine 7 of the present embodiment, having the chiller unit 72 to keep the temperature of the hydrogen gas to be filled constant is due to the variation in the temperature of the hydrogen gas to be filled. The amount of hydrogen gas to be charged is different each time, so that it is possible to avoid inconveniences such as a difference in traveling distance, which is preferable, and the variation in the charging temperature makes it impossible to accurately measure the charged amount. This is preferable because inconvenience can be avoided as much as possible. However, when the pressure of the charged hydrogen gas is substantially the same in each hydrogen fuel cell vehicle HC and there is no large difference in the temperature of the charged hydrogen gas, it is appropriately omitted. You may.

As shown in FIG. 2, the hydrogen supply station of this embodiment has a gas tank 11 buried underground and is stored in the gas tank 11 like a current gas station. A gasoline engine equipped with an internal refueling pump P1 and an oil quantity meter 14 to supply gasoline to an automobile GC equipped with a normal internal combustion engine. Both fuels can be supplied.

The gasoline stored in the gasoline tank 11 is used for refueling the automobile GC by the refueling device 13 and the pump P2 and the desulfurizing device 12 are used.
And is supplied to the bacterial fuel reformer 2 via the above to be used for generating hydrogen.

In the desulfurization apparatus 12 for removing sulfur components from gasoline, since gasoline is a flammable fuel and a non-polar liquid, in the present embodiment, about 0.5% is contained in gasoline by ultraviolet irradiation. Elemental sulfur and various sulfur compounds such as sulfates, sulfites, thiosulfates, benzothiophenes having a thiophene substituent, dibenzothiophenes and alkylbenzothiophenes are selectively excited and reacted with oxygen to polarize compound molecules. And a desulfurization apparatus 12 utilizing oxidative desulfurization by ultraviolet irradiation for extracting and separating these polar molecules containing sulfur elements into a polar solvent to separate them. A predetermined amount of the treated gasoline is stored.

As described above, the use of the desulfurization apparatus 12 using oxidative desulfurization by ultraviolet irradiation not only does not require the use of a large amount of reagents and the like for the treatment, but also allows the ultraviolet irradiation desulfurization method to employ the treatment temperature and treatment pressure. Can be carried out at a relatively low temperature and low pressure, and the treatment capacity is also appropriate. However, the present invention is not limited to this, and the hydrogenation catalyst conventionally used for desulfurization is preferably used. A desulfurization apparatus using a technique such as hydrodesulfurization or biodesulfurization using a microorganism capable of decomposing organic sulfur compounds and sulfur as shown in JP-A-06-184557 may be used.

Further, as in the present embodiment, the removal of the sulfur component contained in the gasoline is required when the gasoline is reformed into hydrogen, by the activity of microorganisms that hydrogenate the gasoline with these sulfur compounds. However, the present invention is not limited to this, and it is possible to prevent secondary compounds such as sulfur oxides from being formed. If the sulfur content contained in the gasoline used is sufficiently small, the desulfurizer 12 may not be used.

As shown in FIG. 2, the bacterial-type fuel reforming apparatus 2 as the first hydrogen generating means to which the gasoline desulfurized by the desulfurizing apparatus 12 is supplied is a light hydrocarbon fuel such as gasoline. (Including a gaseous fuel such as LNG) as an energy source for storing a bacterial solution containing a hydrogen bacterium, which is a microorganism that generates hydrogen gas, and a bacterial solution connected to the bacterial solution reservoir 21 and containing the bacterial solution. A bacteria solution circulation path through which the bacteria solution flowing from the storage unit 21 is circulated, a gasoline steam injection unit that sends gasoline vapor vaporized into the circulated bacteria solution, and a gasoline steam injection unit that is provided separately. A generator 22 having a hydrogen collecting unit for collecting hydrogen generated in a bacterial solution, and a hydrogen separator 2 connected to the generator 22 for separating hydrogen from product gas collected by the hydrogen collecting unit
And a hydrogen storage alloy which selectively absorbs hydrogen in the hydrogen separator 23. From the collected gas, hydrogen gas is mainly stored in the hydrogen storage alloy. The other gases such as gasoline vapor, carbon monoxide, and hydrocarbon gas are returned to the generator 22.

The hydrogen gas stored in the hydrogen storage alloy in the hydrogen separator 23 closes the valve V6 (in a state where V7 is also closed) to start the partial release of the stored hydrogen, and the gas in the hydrogen separator 23 Is replaced with hydrogen and then supplied to the receiver tank 5 by closing the valve V8 and opening the valve V7.

These light hydrocarbon fuels such as gasoline (L
Escherichia (Escherichia) includes microorganisms that generate hydrogen gas using an energy source such as NG or other gas fuels.
Although various bacteria such as E. coli are known, the growth rate of these Escherichia coli is very fast and the reforming treatment speed can be improved. Microorganisms producing a small amount of these carbon dioxide, for example, Clostridium (Clostridium Lactoa)
cetophilum, Clostridium Acetobutylicum, Clostridiu
m Butylicum) or the like is preferably used, and the type of these microorganisms may be appropriately selected from the viewpoint of the throughput and the like.

The bacterial solution containing these hydrogen bacteria may be a culture solution in which the bacteria to be used can be cultured.
Water obtained by adding activated sludge or the like to these culture solutions may be used.

Next, the solar water splitting apparatus 3 used as the second hydrogen generating means in this embodiment will be described with reference to FIGS.

The solar water splitting apparatus 3 of the present embodiment mainly comprises
As shown in FIG. 3, the solar water splitting panel 31 provided continuously.
A water purifier (not shown) for purifying and supplying water to each of the solar water decomposition panels 31 and oxygen, hydrogen, and water vapor generated by the solar water decomposition panel 31 And a hydrogen separator (not shown) for separating hydrogen from the generated product gas.

As shown in FIG. 3, the solar water splitting panel 31 used in this embodiment has a shape like a solar water heater, and can receive sunlight more efficiently. A plurality of panels 31 are connected to each other with an appropriate inclination on a mounting base 36, and are installed on the front surface thereof with a tempered glass 33 that transmits sunlight. At an upper end thereof, a gas collecting unit 32 for collecting and sending out gas generated in the solar water splitting panel 31 is provided.

The structure of the solar water splitting panel 31 used in this embodiment is as shown in FIG. 4, and the lower surface of the tempered glass 33 covering the front surface of the solar water splitting panel 31 has The titanium oxide film 35 as a photocatalyst is formed so as to form a gap through which pure water supplied from the pure water device can pass.
The metal plate 34 on which the titanium oxide film 3 is formed is disposed, and the sunlight passing through the tempered glass 33 is irradiated on the titanium oxide film 35 so that the titanium oxide film 3 is formed.
5 decomposes pure water passing through into oxygen and hydrogen.

The generated gas containing hydrogen and oxygen generated by the decomposition of the water molecules and the water vapor evaporated by the temperature rise due to sunlight is collected by the gas collecting section 32 and sent to the hydrogen separator. Only hydrogen is taken out and supplied to the receiver tank 5.

As a method of forming the titanium oxide film 35 on a metal plate 34 (a stainless steel plate is used in this embodiment), the metal plate 34 is introduced into a vacuum chamber, and the titanium metal is irradiated with an electron beam under an oxidizing atmosphere. By coating and evaporating and ionizing the surface of the metal plate 34 by the method described above, a high-quality titanium oxide film 35 can be obtained relatively easily.

Although not implemented in the present embodiment, the metal plate 3 is used in order to use more sunlight efficiently.
It is optional to form the surface of 4 into a wavy shape or another shape.

Next, the fuel cell device 4 used as the third hydrogen generating means in this embodiment will be described with reference to FIG.

As shown in FIG. 5, the fuel cell device 4 of the present embodiment uses a medium-sized fuel cell which is usually used mainly for a fuel cell for private power generation. Conversely, power is input to a fuel cell that generates power using the same, and it is used as a device that generates hydrogen by supplying water vapor from the steam generator 41. By using the surplus hydrogen, power can be generated and supplied to a power company in the same manner as a normal fuel cell.

The fuel cell device 4 used in this embodiment is
An AC / DC converter 92 that performs bidirectional conversion between DC and AC, and a power path selection circuit 91 that switches a path of power to be used or sent out are included therein, and a power adjustment device connected to the control device 1 9, is connected to a wind power generator 8 and a power company that supplies power transmitted from the power plant, and in the control device 1, the power used for hydrogen generation in the fuel cell device 4 is supplied to the wind power generator. 8 or power from a power company, or both, as appropriate, and supply the power generated by the wind power generator 8 to the power company. Is also feasible.

As shown in FIG. 5, the mechanism of hydrogen generation in the fuel cell device 4 is such that the power from the wind power generator 8 or the electric power company is supplied between the air electrode and the hydrogen electrode of the fuel cell device 4 as a direct current. By converting the current into a current and applying the current, and supplying the water vapor from the vapor generator 41 to the air electrode side, the water molecules are split into hydrogen and oxygen, and the generated hydrogen is ionized to move the electrolyte. To the hydrogen electrode side and receive electrons at the hydrogen electrode side to be converted into hydrogen molecules (gas) to be generated at the hydrogen electrode side, so that the generated hydrogen is supplied to the receiver tank 5. It has become.

When power is generated using surplus hydrogen, as shown by a white arrow in FIG. 5, by supplying hydrogen to the hydrogen electrode side, electrons are deprived from the hydrogen molecules and hydrogen is supplied. The hydrogen ions are ionized, move to the air electrode side through the electrolyte, react with oxygen to become water, and an electromotive force is generated between the hydrogen electrode and the air electrode.

In the following, an example of the operation of the hydrogen supply station in the present embodiment will be described. In the daytime of fine weather with irradiation of sunlight, hydrogen is generated by the solar water splitter 3. Since the generation of hydrogen in the fuel cell device 4 by the power of the solar water splitter 3 and the wind power generator 8 is the cheapest in terms of cost, the hydrogen generation by both energy sources is usually given the highest priority. , And controls the control device 1.

However, since the solar water splitting apparatus 3 and the wind power generator 8 may have a drastically reduced hydrogen generating ability due to the weather, for example, the weather is cloudy and there is no wind, When hydrogen generation by the cracking device 3 or the wind power generator 8 cannot be obtained, the power cost in the daytime is high, so that the bacteria-type fuel reformer 2 is operated to generate hydrogen, When the amount of generated hydrogen is small even in the fuel reformer 2, the power from the electric power company is applied to the fuel cell device 4 to generate insufficient hydrogen.

In this embodiment, which of these generating means is operated is controlled by the control device 1 manually. However, the present invention is not limited to this. Alternatively, a computer or the like may automatically control the operation status of each of the hydrogen generating means based on the hydrogen generation cost and the hydrogen demand at that time so that the cheapest and no shortage of hydrogen occurs.

On the other hand, in the present embodiment, when sufficient hydrogen is obtained in the solar water splitting device 3 and sufficient power is obtained by the wind power generator 8, In addition to the power, the power obtained by supplying surplus hydrogen to the fuel cell device 4 can be supplied to the power company. In this way, the power purchased from the power company in an emergency or the like can be provided. It is preferable to be able to offset the price of the electricity with the electricity rates supplied to these power companies, so that cheaper and more stable hydrogen supply can be performed. However, the present invention is not limited to this. Hydrogen may be obtained using a water electrolysis device instead of the fuel cell device 4. The electro-water splitting means in the present invention may be any type that can split water by electric power, and the splitting of water by the fuel cell device 4 is also included in the electro-water splitting means.

Further, in the above-mentioned operation example, an example has been described in which the priority is given to hydrogen generation using the electric power of the solar water splitter 3 and the wind power generator 8, but the present invention is not limited to this. The control contents of these operations may be controlled so that the one that can generate hydrogen at the lowest cost at that time is prioritized. For example, if the gasoline price is reduced and the bacterial type fuel reformer 2 When production is the cheapest, hydrogen production by the bacterial fuel reformer 2 may be given top priority.

In this embodiment, the electric power generated by the wind power generator 8 is used. However, the present invention is not limited to this, and a solar cell panel is used in place of the solar water splitting device 3. Hydrogen may be generated using the power of the solar cell panel.

As described above, the embodiments of the present invention have been described with reference to the drawings. However, the present invention is not limited to these embodiments, and changes and additions may be made without departing from the gist of the present invention. Needless to say, the present invention is included in the present invention.

For example, in the above-described embodiment, gasoline has been described as an example of fuel. However, the present invention is not limited to this, and the bacterial hydrogen generator 2 may use alcohol fuel or liquefied natural gas (LNG). Hydrogen gas can be generated, and alcohol fuel or liquefied natural gas (LNG) may be used as the fuel to be used.

Further, in the above-described embodiment, an example was shown in which three types of hydrogen generating means having different energy sources were used. However, the present invention is not limited to this. Any two different types may be used, and the hydrogen generating means to be used is not limited to that of the above-described embodiment, and may be appropriately selected.

In the above-described embodiment, the bacterial hydrogen generator 2 is exemplified as the fuel reforming means. However, these bacterial hydrogen generators 2 generate a relatively small amount of carbon dioxide during hydrogen generation or The present invention is not limited to this, but is not limited thereto. For example, a device using a conventional steam reforming method or a partial oxidation method may be used as these fuel reforming means. Any fuel reforming means may be used as long as it can generate hydrogen from at least one fuel of gasoline, alcohol fuel or liquefied natural gas (LNG) (or a mixed fuel).

[0050]

The present invention has the following effects. (A) According to the first aspect of the present invention, the hydrogen generation control means selects the most cost-effective generation method at that time to generate hydrogen, thereby reducing the cost of hydrogen. In addition to being able to provide hydrogen, when sufficient hydrogen cannot be obtained by these inexpensive hydrogen generators or when the generator has a problem, control is performed so that hydrogen is generated by other hydrogen generators as appropriate. Thereby, hydrogen can be generated and supplied stably.

(B) According to the invention of claim 2, conventional gasoline, alcohol fuel or liquefied natural gas (LN
G) can be used to generate hydrogen, and conventional gas station equipment can be used.

(C) According to the third aspect of the present invention, it is possible to reduce the amount of carbon dioxide generated due to fuel reforming.

(D) According to the invention of claim 4, hydrogen can be obtained inexpensively and efficiently using sunlight.

(E) According to the invention of claim 5, hydrogen can be obtained at low cost by using the power generated by wind power generation.

(F) According to the invention of claim 6, in a case where the power by the wind power generation cannot be obtained, hydrogen can be urgently generated by using normal transmission power.

[Brief description of the drawings]

FIG. 1 is a system diagram showing a configuration of a hydrogen supply station according to an embodiment of the present invention.

FIG. 2 is a system flow diagram showing a configuration of a bacterial fuel reformer used in an embodiment of the present invention.

FIG. 3 is an external perspective view showing a solar water splitting panel constituting a solar water splitting apparatus which is one of the hydrogen generating means used in the embodiment of the present invention.

FIG. 4 is a sectional view showing a configuration of the solar water splitting panel used in the embodiment of the present invention.

FIG. 5 is a diagram showing a configuration of a fuel cell device 4 used in an example of the present invention.

[Explanation of symbols]

 REFERENCE SIGNS LIST 1 Control device 2 Bacterial fuel reformer 3 Solar water splitter 4 Fuel cell device 5 Receiver tank 6 High-pressure hydrogen gas cylinder 7 Hydrogen gas filling machine 8 Wind power generator 9 Power adjustment device 11 Gasoline tank 12 Desulfurization device 13 Refueling device 14 Oil amount meter 21 Bacterial solution storage unit 22 Generator 23 Hydrogen separator 31 Solar water splitting panel 32 Gas collection unit 33 Tempered glass 34 Metal plate 35 Titanium oxide film 36 Mounting stand 41 Steam generator 71 Hydrogen gas meter 72 Chiller unit 73 Filling gas pressure setting part 74 Gas pressure adjusting pressure reducing valve 91 Power path selection circuit 92 AC / DC converter

──────────────────────────────────────────────────続 き Continued on the front page (51) Int.Cl. ⁷ Identification symbol FI Theme coat ゛ (Reference) C12N 1/00 F17C 5/06 F17C 5/06 C01B 3/00 Z // C01B 3/00 3/02 Z 3/02 3/04 A 3/04 3/32 A 3/32 3/38 3/38 (C12M 1/107 (C12M 1/107 C12R 1: 145) C12R 1: 145) (C12N 1/00 P ( C12N 1/00 C12R 1: 145) C12R 1: 145) C10L 3/00 CSKA F-term (reference) 3D026 CA04 3E072 AA03 DA05 GA30 4B065 AA23X BA22 BB04 BB06 BB22 CA01 CA54 4G040 AB01 BA03 BB03 EA02 EA03 EA06 4H013 BA01

Claims (6)

[Claims] 1. A hydrogen supply station for supplying hydrogen to a hydrogen vehicle using hydrogen as a power fuel, comprising: at least two types of hydrogen generating means using different energy sources for generating hydrogen; Hydrogen storage means for storing hydrogen generated by the generation means, hydrogen generation control means capable of individually controlling whether or not hydrogen supply from each of the hydrogen generation means to the hydrogen storage means is performed; and And a hydrogen metering means for metering and supplying the hydrogen stored in the storage means to the hydrogen vehicle. 2. The hydrogen supply station according to claim 1, wherein one of said hydrogen generating means is a fuel reforming means for generating hydrogen from at least one fuel of gasoline, alcohol fuel or liquefied natural gas (LNG). 3. The fuel reforming means according to claim 2, wherein said fuel reforming means is a microbial fuel reforming means for obtaining hydrogen from fuel using microorganisms.
The hydrogen supply stand according to 1. 4. The hydrogen supply according to claim 1, wherein one of the hydrogen generating units is a photo-water splitting unit including a photocatalyst that generates water by decomposing water by irradiating sunlight. stand. 5. One of the hydrogen generating means is an electro-water splitting means for electrolyzing water to generate hydrogen, and comprises a wind power generating means for supplying electric power used in the electro-water splitting means. Item 5. A hydrogen supply stand according to any one of Items 1 to 4. 6. The hydrogen supply stand according to claim 5, wherein said electro-water splitting means can use a normal transmission power.