JP6209398B2 - Hydrogen production apparatus and hydrogen production method - Google Patents

Description

  The present invention relates to a technique for generating hydrogen from a hydrogen-containing compound that is a compound containing a hydrogen atom in its structure.

  The “best mix” of supplying large-scale energy and small-to-medium-scale energy according to the size of the community is an issue as an energy policy. In particular, natural gas and biogas mainly composed of methane are preferable chemical resources in terms of global environmental conservation. Therefore, there is a need for a system that can efficiently convert hydrogen from methane.

At present, steam reforming is the mainstream for industrial hydrogen production from methane. This is a two-stage reaction involving steam supply, and has a problem of high costs and CO or CO ₂ by-product.

JP 2006-188397 A

  The present invention has been made based on such circumstances, and an object thereof is to provide a novel technique capable of generating hydrogen from a hydrogen-containing compound such as methane while suppressing generation of by-products.

As a result of diligent research, the present inventor conducted a reaction in the presence of a catalyst containing silicon carbide and nickel activated by heating in the decomposition of a hydrogen-containing compound by irradiating the catalyst with microwaves. The present inventors have found that hydrogen can be generated from hydrogen-containing compounds while suppressing the generation of by-products.
Furthermore, the present inventor, in the decomposition of the hydrogen-containing compound by microwave irradiation in multi-mode, the catalyst is independent of the heat-generating part heated by the microwave and the heat-generating part. The idea is to include a reaction promoting portion that is heated to promote thermal decomposition of the hydrogen-containing compound. The present inventor has found that the catalyst can be configured as described above, so that the lifetime of the catalyst can be extended and stable production of hydrogen from the hydrogen-containing compound can be maintained longer, and the present invention has been completed.

The gist of the present invention is as follows.
[1] A reactor in which a catalyst containing silicon carbide and nickel is loaded, and a gas containing a hydrogen-containing compound is supplied;
A microwave irradiation unit that irradiates the catalyst in the reactor with microwaves in multimode, and
In the presence of the catalyst activated by being heated by microwave irradiation in multimode by the microwave irradiation unit, the thermal decomposition of the hydrogen-containing compound proceeds to generate hydrogen,
The catalyst includes the silicon carbide and includes a heating part that absorbs microwaves and is heated, and includes nickel and is disposed at a position adjacent to the heating part, and is heated by the heat supplied from the heating part. A hydrogen production apparatus comprising a reaction promoting unit that is activated to promote thermal decomposition of the hydrogen-containing compound.
[2] The hydrogen production apparatus according to [1], wherein the reaction promoting unit is stacked on the heating unit along a direction in which a gas containing the hydrogen-containing compound flows.
[3] The hydrogen production apparatus according to [1] or [2], wherein the reaction promoting unit further includes HZSM-5 zeolite.
[4] The hydrogen production apparatus according to any one of [1] to [3], wherein the hydrogen-containing compound is methane.
[5] The catalyst including silicon carbide and nickel is heated by irradiating with microwaves in multimode to activate the catalyst,
Proceeding thermal decomposition of the hydrogen-containing compound contained in the gas in contact with the catalyst in the presence of the activated catalyst to produce hydrogen,
The catalyst includes the silicon carbide and includes a heating part that absorbs microwaves and is heated, and includes nickel and is disposed at a position adjacent to the heating part, and is heated by the heat supplied from the heating part. A hydrogen production method comprising a reaction promoting part that is activated to promote thermal decomposition of the hydrogen-containing compound.
[6] The hydrogen production method according to [5], wherein the reaction promoting unit is stacked on the heat generating unit along a direction in which the gas containing the hydrogen-containing compound flows.
[7] The method for producing hydrogen according to [5] or [6], wherein the catalyst further contains HZSM-5 zeolite.
[8] The method for producing hydrogen according to any one of [5] to [7], wherein the hydrogen-containing compound is methane.
[9] A catalyst for producing hydrogen by decomposition of a hydrogen-containing compound contained in a contacting gas,
A heating part containing silicon carbide and heated by absorbing microwaves;
For hydrogen production, comprising a reaction promoting part that includes nickel, is disposed at a position adjacent to the heat generating part, and is activated by heat supplied from the heated heat generating part to promote thermal decomposition of the hydrogen-containing compound. catalyst.
[10] The hydrogen production catalyst according to [9], wherein the reaction promoting unit is stacked on the heat generating unit along a direction in which a gas containing the hydrogen-containing compound flows.
[11] The catalyst for hydrogen production according to [9] or [10], wherein the reaction promoting part further contains HZSM-5 zeolite.
[12] The hydrogen production catalyst according to any one of [9] to [11], wherein the hydrogen-containing compound is methane.

  ADVANTAGE OF THE INVENTION According to this invention, the novel technique which can suppress generation | occurrence | production of a by-product and can produce | generate hydrogen from hydrogen containing compounds, such as methane, can be provided. Furthermore, according to the present invention, in the hydrogen-containing compound decomposition reaction by microwave irradiation in multimode, stable production of hydrogen from the hydrogen-containing compound can be maintained for a longer time.

It is a block diagram for showing the outline of the composition of the hydrogen production device of this embodiment. It is a figure which shows the outline | summary of the reactor with which the catalyst concerning the hydrogen production apparatus of this embodiment is loaded, Comprising: It is sectional drawing along the direction through which the gas containing the hydrogen-containing compound of a reactor flows. It is a figure which shows the processing flow of the hydrogen production which concerns on this embodiment. It is a block diagram for showing the outline of a fuel cell power generation system provided with the hydrogen production device of this embodiment. 2 is a graph showing hydrogen selectivity according to Example 1. 2 is a graph showing the yield of hydrogen according to Example 1. 5 is a graph showing hydrogen selectivity according to Comparative Example 1. 5 is a graph showing the yield of hydrogen according to Comparative Example 1. It is a figure which shows the outline | summary of the reactor with which the catalyst which concerns on other embodiment is loaded, Comprising: It is sectional drawing along the surface perpendicular | vertical to the direction through which the gas containing a hydrogen-containing compound flows. It is a figure which shows the outline | summary of the reactor with which the catalyst which concerns on other embodiment is loaded, Comprising: It is sectional drawing along the surface perpendicular | vertical to the direction through which the gas containing a hydrogen-containing compound flows. It is a figure which shows the outline | summary of the reactor with which the catalyst which concerns on other embodiment is loaded, Comprising: It is sectional drawing along the surface perpendicular | vertical to the direction through which the gas containing a hydrogen-containing compound flows. It is a figure which shows the outline | summary of the reactor with which the catalyst which concerns on other embodiment is loaded, Comprising: It is sectional drawing along the surface perpendicular | vertical to the direction through which the gas containing a hydrogen-containing compound flows.

Hereinafter, one embodiment of the present invention will be described in detail.
FIG. 1 is a block diagram showing an outline of a hydrogen production apparatus 10 (hereinafter also simply referred to as the apparatus 10) of the present embodiment.
The apparatus 10 of the present embodiment is loaded with a catalyst 2 containing silicon carbide and nickel and supplied with a gas containing a hydrogen-containing compound, and a multimode microwave is applied to the catalyst 2 in the reactor 1. A microwave irradiation unit 3 for irradiation. In the hydrogen production apparatus 10 of the present embodiment, hydrogen decomposition is performed by advancing thermal decomposition of a hydrogen-containing compound in the presence of the catalyst 2 that is heated and activated by microwave irradiation in multimode by the microwave irradiation unit 3. Generate. Moreover, in the apparatus 10 of this embodiment, the catalyst 2 contains silicon carbide, absorbs microwaves and is heated by heating, and includes nickel and is disposed at a position adjacent to the heating part 21 and is heated. And a reaction promoting unit 23 that is activated by heat supplied from the heat generating unit 21 and promotes thermal decomposition of the hydrogen-containing compound.
In the present specification, the hydrogen-containing compound refers to a compound containing at least one hydrogen atom in its structure.

The configuration of the device 10 of this embodiment will be described in more detail. Moreover, in FIG. 1, the flow of the gas (reformed gas) containing the gas containing the hydrogen-containing compound supplied and the produced | generated hydrogen (reformed gas) is shown as a continuous line.
The apparatus 10 of this embodiment includes a reactor 1 that is housed in the internal space 15 thereof. The reactor 1 communicates with a gas introducing portion 1A containing a hydrogen-containing compound and a product gas deriving portion 1B by reaction.
A catalyst 2 is loaded in the reactor 1. The shape, size, and configuration of the reactor 1 allows microwave irradiation to the internal catalyst 2, and allows thermal decomposition of the hydrogen-containing compound in the presence of the catalyst 2 to proceed. As long as it is, it will not specifically limit, Those skilled in the art can set suitably. For example, the reactor 1 can be composed of quartz.
Further, in the present embodiment, a configuration in which one reactor 1 is provided in the apparatus 10 is shown for easy understanding, but a configuration in which a plurality of reactors 1 are provided in the apparatus 10 may be employed.
Further, the device 10 can be configured to include a reflection thermometer 17. The reflection thermometer 17 can be used to measure the temperature (surface temperature) of the catalyst 2 heated by microwave irradiation. The reflection thermometer 17 is not particularly limited, and a known one can be used.

The hydrogen production apparatus 10 of the present embodiment includes a microwave irradiation unit 3 that irradiates the catalyst 2 in the reactor 1 with microwaves. In the apparatus 10 of the present embodiment, the microwave irradiation unit 3 irradiates the catalyst 2 with microwaves in multimode. The microwave radiated from the microwave irradiation unit 3 travels while being reflected in the internal space 15 of the apparatus 10 and reaches the catalyst 2 inside the reactor 1.
The microwave irradiation unit 3 may have a circuit configuration in which a microwave excitation current is supplied from a power supply unit 5 built in the apparatus 10. Further, the output and frequency of the microwave irradiated from the microwave irradiating unit 3 can be a circuit configuration controlled by the control unit 7 built in the apparatus 10. In addition, the structure of these microwave irradiation parts 3, the power supply part 5, and the control part 7 can use what is known conventionally, and those skilled in the art can set suitably. For example, the microwave irradiation unit 3 can be configured by a magnetron or the like.

FIG. 2 is a diagram showing a region surrounded by a broken line m in FIG. 1 of the hydrogen production apparatus 10 of the present embodiment.
The catalyst 2 loaded in the reactor 1 and irradiated with microwaves includes nickel (Ni) and silicon carbide (SiC).
Here, in the present embodiment, the catalyst 2 includes a heat generating part 21 and a reaction promoting part 23. The heat generating part 21 includes silicon carbide and is heated by absorbing the microwave radiated from the microwave irradiating part 3. Silicon carbide contributes as a susceptor component that absorbs microwaves and generates heat by self-heating.
The reaction promoting unit 23 contains nickel and is activated by heat supplied from the heated heat generating unit 21 to promote thermal decomposition of the hydrogen-containing compound. Nickel increases the methane conversion rate and contributes to highly selective production of hydrogen.
The reaction promoting unit 23 is disposed in the reactor 1 at a position adjacent to the heat generating unit 21. Specifically, for example, as illustrated in FIG. 2, the reaction promoting unit 23 (23 a, 23 b) is stacked on the heat generating unit 21 (21 a, 21 b, 21 c) along the direction in which the gas containing the hydrogen-containing compound flows. It can be configured.
In the present specification, the phrase “arranged at adjacent positions” refers to the case where the heat generating part 21 and the reaction promoting part 23 are in direct contact, as well as the heat generating part 21 via a partition 25 that can transfer heat. This is a concept including the case where the reaction promoting unit 23 and the reaction promoting unit 23 are adjacent. The partition 25 can be configured using, for example, quartz wool.

The method for producing the catalyst 2 is not particularly limited, and can be appropriately set by those skilled in the art. For example, in the case where the reaction promoting unit 23 is configured to be stacked on the heat generating unit 21 along the direction in which the gas containing the hydrogen-containing compound flows, a powder body containing silicon carbide and a powder body containing nickel in the reactor 1 Are stacked along the direction in which the gas of the hydrogen-containing compound flows.
Alternatively, silicon carbide powder and an inorganic adhesive material may be mixed and applied to a heat-resistant ceramic, and this may be disposed as a heat generating portion 21 at a position adjacent to the reaction promoting portion 23 containing nickel.

Moreover, in this embodiment, it is preferable that the reaction promotion part 23 in the catalyst 2 further contains HZSM-5 zeolite. By including HZSM-5 zeolite, the selectivity of the produced hydrogen can be further increased.
Moreover, in this embodiment, other components may be contained in addition to nickel, silicon carbide, and HZSM-5 zeolite contained as necessary. Specific examples include molybdenum carbide that can improve the moldability of the catalyst. The molybdenum carbide can be contained in the reaction promoting unit 23, for example.
In this embodiment, the ratio of the component which comprises the catalyst 2 is not specifically limited, Those skilled in the art can set suitably. The amount of the catalyst 2 loaded in the reactor 1 is not particularly limited. Further, when the catalyst 2 is constituted by a plurality of reaction promoting portions 23 and a plurality of heat generating portions 21 as shown in FIG. 2, for example, the ratios in weight and volume can also be set as appropriate. From the viewpoint of maintaining the activity of the catalyst 2 for a longer time, the catalyst 2 includes a heat generating portion containing silicon carbide, a reaction promoting portion containing nickel and HZSM-5 zeolite, and nickel as a whole with respect to the catalyst 2. The ratio is preferably 20% by mass or more (more preferably 30% by mass or more).

In the hydrogen production apparatus 10 of this embodiment, a gas containing a hydrogen-containing compound is used as a hydrogen source. Specific examples of the hydrogen-containing compound include methane (CH ₄ ), ethane (C ₂ H ₆ ), propane (CH ₃ CH ₂ CH ₃ ), butane (C ₄ H ₁₀ ), benzene (C ₆ H ₆ ), Examples thereof include hydrocarbon compounds such as toluene (C ₇ H ₈ ) and xylene (C ₆ H ₄ ), hydrogen sulfide (H ₂ S), and the like. Moreover, the gas supplied into the reactor 1 of the hydrogen production apparatus of the present embodiment may contain one or more hydrogen-containing compounds.

  In the present embodiment, the aspect of supplying the gas containing the hydrogen-containing compound to the reactor 1 is not particularly limited, and a mode of supplying from a gas cylinder or a pipeline can be appropriately set.

FIG. 3 is a diagram showing an example of a processing flow when hydrogen is produced in the hydrogen production apparatus 10 of the present embodiment.
First, in step S1, a gas containing a hydrogen-containing compound is supplied from the introduction unit 1A into the reactor 1, and all the air inside the reaction vessel 1 is replaced with the gas. The pressure of the gas containing the hydrogen-containing compound flowing into the reactor 1 can be appropriately set according to the type of gas, the volume of the catalyst 2 loaded in the reaction vessel 1, the size of the reactor 1, and the like. .
Next, in step S2, microwaves are irradiated from the microwave irradiation unit 3 to the catalyst 2 in the reactor 1 in a multimode, the catalyst 2 is activated by heating, and the activated catalyst 2 is activated. In the presence, the thermal decomposition of the hydrogen-containing compound contained in the contacting gas is allowed to proceed.
The output and frequency of the microwave irradiated from the microwave irradiation unit 3 are not particularly limited as long as it is irradiation in multimode and the catalyst 2 can be activated to thermally decompose the hydrogen-containing compound. it can. For example, the oscillation output can be 1000 W and the oscillation frequency can be 2.45 GHz.
Further, the catalyst 2 is heated to, for example, 500 to 800 ° C. by microwave irradiation, depending on the type of the hydrogen-containing compound. In the thermal decomposition of the hydrogen-containing compound according to this embodiment, the surface temperature of the catalyst 2 can be set as the reaction temperature. The said reaction temperature can be measured with the radiation thermometer 17 with which the apparatus 10 is equipped, for example.
Subsequently, in step S3, the hydrogen generated in step S2 is taken out from the reactor 1 through the derivation unit 1B.

The hydrogen production apparatus 10 of this embodiment can be applied to various systems. For example, it can be used as a hydrogen supply source of a fuel cell power generation system.
FIG. 4 shows an example of the configuration of a fuel cell power generation system using the hydrogen production apparatus 10 of the present embodiment. The fuel cell power generation system can be configured to include, for example, the hydrogen production apparatus 10 of the present embodiment, the gas supply unit 200, and the fuel cell unit 300. As in FIG. 1, the gas flow is shown by a solid line.
The gas supply unit 200 is connected to the introduction unit 1A of the hydrogen production apparatus 10 through a gas tube or the like. The fuel cell unit 300 includes an anode 310 and a cathode 300. The anode 310 and the lead-out unit 1B of the hydrogen production apparatus 10 are connected via a gas tube or the like, and the hydrogen produced by the hydrogen production apparatus 10 is supplied to the anode 310. When hydrogen is supplied to the anode 310 in this way, the hydrogen and oxygen in the air supplied to the cathode 330 undergo an electrochemical reaction to generate power.
The gas supply unit 200 can be a gas cylinder, for example, and the fuel cell unit 300 can employ various known methods. Further, a cooling unit that can lower the temperature of the generated hydrogen may be provided between the hydrogen production apparatus 10 and the fuel cell unit 14.

In the present embodiment, in the thermal decomposition of the hydrogen-containing compound, the reaction is promoted using a catalyst containing nickel and silicon carbide to generate hydrogen.
By using the catalyst, in this embodiment, the selectivity of hydrogen in the reaction product is extremely high, and the steam reforming reaction (CH ₄ + H ₂ O → mainly used in the industrial reaction of methane) 3H ₂ + CO) does not require the steam component (H ₂ O) necessary for the reaction to proceed. Therefore, in this embodiment, generation of by-products (for example, when hydrocarbon gas such as methane is used as a hydrogen-containing compound, CO, CO ₂ , ethylene, ethane, etc.) can be suppressed.
In addition, the ability to produce hydrogen from methane, etc. while suppressing the generation of by-products is the conversion of high-purity hydrogen from many low-carbon raw materials such as methane-based natural gas, methane hydrate, shale gas, and biogas. Wide application as a technology is expected. In particular, when used for decomposing methane contained in biogas in the hydrogen production apparatus of the present embodiment, sewage treatment facilities and livestock farmers scattered not only in beach areas where natural gas purification facilities are located but also in urban areas and mountainous areas. It can also be used for gas generated from the above, and electric energy can be supplied. As described above, the present embodiment may be developed into a technology that can greatly improve the domestic energy supply problem.

  In the present embodiment, microwaves are irradiated in a multimode. Therefore, it is possible to make the entire apparatus smaller as compared with the case of microwave irradiation in a single mode. In addition, since the microwave is irradiated in the multi mode, the multi mode can measure the temperature of the heated catalyst from a plurality of locations using a reflection thermometer or the like. Therefore, it is easy to maintain a stable thermal decomposition reaction of methane. Furthermore, it is easy to improve operability (handling properties) such as catalyst exchange by microwave irradiation in multimode.

Furthermore, in the present embodiment, the catalyst includes silicon carbide, includes a heat generating portion 21 that is heated by absorbing microwaves, and nickel that is present independently of the heat generating portion 21. And a reaction accelerating portion that is activated by heat transmitted from the substrate to promote thermal decomposition of the hydrogen-containing compound.
By providing the structure, the life of the catalyst can be further extended in the thermal decomposition of the hydrogen-containing compound contained in the gas by the microwave irradiation in multimode. As a result, stable production of hydrogen for a longer time can be enabled.
Therefore, according to this embodiment, it is thought that it can contribute greatly to the practical use of hydrogen production using a gas containing a hydrogen-containing compound such as methane as a raw material.

Hereinafter, the present invention will be described in more detail with reference to examples. However, the present invention is not limited to the examples.
As shown below, the catalyst which concerns on the hydrogen production apparatus of this embodiment was prepared, and it used for the test which concerns on hydrogen production | generation.

Catalyst according to Example 1 Nickel (Ni) powder, HZSM-5 zeolite (HZSM-5) powder, and molybdenum carbide (Mo ₂ C) powder were physically mixed (the powder is hereinafter referred to as NHM powder). Next, in the reaction tube as the reactor 1, NHM powder and silicon carbide (SiC) powder were laminated along the direction in which methane flows through quartz wool as the partition 25 as shown in FIG. .
The ratio of each component, relative to the total catalyst, SiC: 30 _wt%, Mo 2 C: 2.1 wt%, Ni: 30 wt%, HZSM-5: a 37.9 mass%.
Further, the weights of the heat generating portions (21a, 21b, 21c) and the reaction promoting portions (23a, 23b) in the catalyst are as follows.
21a: 0.65 g, 21b: 2.8 g, 21c: 2.61 g, 23a: 7.4 g, 23b: 4.78 g

Catalyst according to Comparative Example 1 SiC: 30% by mass, Mo ₂ C: 2.1% by mass, Ni: 30% by mass, HZSM-5: 37.9% by mass, with each component powder mixed (18 .37 g, volume 20 mL) was charged into the reaction tube to form a catalyst.

Reaction test The reaction test was conducted using a multi-mode microwave reactor (Shikoku Keiki Kogyo Co., Ltd. μ Reactor Ex). The specifications of the microwave reactor are shown below. Moreover, methane gas was used as gas containing a hydrogen-containing compound.
Oscillation frequency: 2.45GHz
Output: 1000W
Temperature detection: Control of microwave output by radiation thermometer Dimensions and weight:
External dimensions 520W × 425D × 439H (25kg)
Inside dimensions 280W × 280D × 250H

A reaction tube loaded with the catalyst according to Example 1 or Comparative Example 1 was attached to a gas introduction unit and a product gas extraction unit including a hydrogen-containing compound provided in the microwave reactor.
Methane gas was introduced at 10 ml / min from the introduction part, and the catalyst in the reaction tube was irradiated with microwaves in a multimode to cause a reaction. The reaction temperature was set at 650 ° C. by measuring the surface temperature of the catalyst with a radiation thermometer. The reaction product was quantified by connecting to a gas chromatograph online from the derivation unit, and the hydrogen selectivity (Selectivity) and hydrogen yield (H yield) were determined.
Each value was defined as follows.

Graphs relating to hydrogen selectivity and hydrogen yield of Example 1 are shown in FIGS. 5 and 6, and graphs relating to hydrogen selectivity and hydrogen yield of Comparative Example 1 are shown in FIGS. In the examples, the apparatus was stopped once and left overnight, and then the apparatus was operated again the next day to continue the reaction. The measurement results on the first to fifth days are shown as Run 1 to 5, respectively.
5 and 6 also show cases where the hydrogen yield and hydrogen selectivity immediately after the start of the operation on the second day and after are lower than those at other points in time. This is due to the fact that the temperature of the catalyst has not yet reached the temperature at which the reaction proceeds stably and that the catalyst has not yet been activated due to the influence of moisture absorption of the catalyst while the apparatus is stopped. That is, the values of hydrogen yield and hydrogen selectivity immediately after the start of operation on and after the second day are lower than those at other time points are values before the execution of hydrogen production according to this embodiment, and are regarded as the results of the examples. Those skilled in the art can naturally understand that this is not the case.
Example 1 compared to Comparative Example 1 showed good hydrogen selectivity over the entire reaction time. In Comparative Example 1, the yield of hydrogen was greatly reduced after 300 minutes from the start of the reaction, but Example 1 maintained a stable hydrogen yield of approximately 93% after 300 minutes.

The hydrogen production apparatus of this embodiment has been described with reference to the examples. However, this invention is not limited to this, Of course, it is also possible to set it as another aspect.
For example, the structure of the catalyst has been described with reference to the case where the reaction promoting unit 23 is stacked on the heat generating unit 21 along the direction in which the gas containing the hydrogen-containing compound flows, but the arrangement of the heat generating unit 21 and the reaction promoting unit 23 is described. Of course, other configurations are possible.
For example, the reaction promoting portion 23 and the heat generating portion 21 are, for example, concentric or concentric polygons on a plane perpendicular to the direction in which the gas containing the hydrogen-containing compound flows (the plane along the broken line bb ′ in FIG. 1). You may make it arrange | position repeatedly alternately (FIG. 9, FIG. 10). Furthermore, the reaction promoting portions 23 having a circular shape or a polygonal shape can be arranged so as to be scattered in the heat generating portion 21 on a plane perpendicular to the direction in which the gas containing the hydrogen-containing compound flows (FIG. 11). Furthermore, the reaction promoting portions 23 and the heat generating portions 21 are alternately arranged in the circumferential direction on a plane perpendicular to the direction in which the gas containing the hydrogen-containing compound flows, and the reaction promoting portions 23 and the heat generating portions 21 extend radially. It can also be arranged (FIG. 12).

Claims (12)

A reactor in which a catalyst containing silicon carbide and nickel is loaded, and a gas containing a hydrogen-containing compound is supplied;
A microwave irradiation unit that irradiates the catalyst in the reactor with microwaves in multimode, and
In the presence of the catalyst activated by being heated by microwave irradiation in multimode by the microwave irradiation unit, the thermal decomposition of the hydrogen-containing compound proceeds to generate hydrogen,
The catalyst is made of a powder body containing the silicon carbide, is composed of a heat generating part that is heated by absorbing microwaves, and is made of a powder body containing nickel, and is disposed at a position adjacent to the heat generating part and heated. A reaction promoting part that is activated by heat supplied from the heat generating part and promotes thermal decomposition of the hydrogen-containing compound,
The hydrogen production apparatus, wherein the reaction promoting unit is stacked on the heat generating unit along a direction in which a gas containing the hydrogen-containing compound flows.   The hydrogen production apparatus according to claim 1, wherein a partition capable of transferring heat is provided between the heat generating unit and the reaction promoting unit.   The hydrogen production apparatus according to claim 1 or 2, wherein the reaction promoting unit further includes HZSM-5 zeolite.   The hydrogen production apparatus according to any one of claims 1 to 3, wherein the hydrogen-containing compound is methane. The catalyst comprising silicon carbide and nickel is heated by irradiating with microwaves in multimode to activate the catalyst,
Proceeding thermal decomposition of a hydrogen-containing compound contained in a gas that contacts the catalyst in the presence of the activated catalyst to generate hydrogen,
The catalyst is made of a powder body containing the silicon carbide, is composed of a heat generating part that is heated by absorbing microwaves, and is made of a powder body containing nickel, and is disposed at a position adjacent to the heat generating part and heated. A reaction promoting part that is activated by heat supplied from the heat generating part and promotes thermal decomposition of the hydrogen-containing compound,
The method for producing hydrogen, wherein the reaction promoting part is stacked on the heat generating part along a direction in which a gas containing the hydrogen-containing compound flows. The hydrogen production method according to claim 5, wherein a partition capable of transferring heat is provided between the heat generating part and the reaction promoting part.   The method for producing hydrogen according to claim 5 or 6, wherein the catalyst further contains HZSM-5 zeolite.   The method for producing hydrogen according to claim 5, wherein the hydrogen-containing compound is methane. A catalyst for producing hydrogen by decomposition of a hydrogen-containing compound contained in a gas to be contacted,
A heat generating part made of a powder body containing silicon carbide and heated by absorbing microwaves,
A reaction accelerator made of a powder containing nickel, disposed at a position adjacent to the heat generating part, and activated by heat supplied from the heated heat generating part to promote thermal decomposition of the hydrogen-containing compound; Prepared,
The catalyst for hydrogen production, wherein the reaction promoting part is stacked on the heat generating part along a direction in which a gas containing the hydrogen-containing compound flows.   The hydrogen production catalyst according to claim 9, wherein a partition capable of transferring heat is provided between the heat generating part and the reaction promoting part.   The catalyst for hydrogen production according to claim 9 or 10, wherein the reaction promoting part further contains HZSM-5 zeolite.   The catalyst for hydrogen production according to any one of claims 9 to 11, wherein the hydrogen-containing compound is methane.