CN114373958A - Magnesium-based solid hydrogen storage and supply system device for solid oxide fuel cell - Google Patents
Magnesium-based solid hydrogen storage and supply system device for solid oxide fuel cell Download PDFInfo
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M8/00—Fuel cells; Manufacture thereof
- H01M8/04—Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids
- H01M8/04082—Arrangements for control of reactant parameters, e.g. pressure or concentration
- H01M8/04201—Reactant storage and supply, e.g. means for feeding, pipes
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M8/00—Fuel cells; Manufacture thereof
- H01M8/04—Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids
- H01M8/04007—Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids related to heat exchange
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M8/00—Fuel cells; Manufacture thereof
- H01M8/04—Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids
- H01M8/04298—Processes for controlling fuel cells or fuel cell systems
- H01M8/04694—Processes for controlling fuel cells or fuel cell systems characterised by variables to be controlled
- H01M8/04746—Pressure; Flow
- H01M8/04753—Pressure; Flow of fuel cell reactants
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- H—ELECTRICITY
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- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M8/00—Fuel cells; Manufacture thereof
- H01M8/10—Fuel cells with solid electrolytes
- H01M8/12—Fuel cells with solid electrolytes operating at high temperature, e.g. with stabilised ZrO2 electrolyte
- H01M2008/1293—Fuel cells with solid oxide electrolytes
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- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
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Abstract
The invention discloses a magnesium-based solid hydrogen storage and supply system device for a solid oxide fuel cell, which relates to the field of fuel cell systems. After initial start, the high temperature tail gas generated by the solid oxide fuel cell is used for heating hydrogen in the first heat exchanger, and the magnesium-based hydrogen storage material is heated by the heating hydrogen and releases the hydrogen. The released hydrogen is shunted by the second shunting device, part of the released hydrogen is used for generating power by the fuel cell, and the rest hydrogen flows into the first heat exchanger after being pressurized by the circulating pump to exchange heat with high-temperature tail gas of the fuel cell and flows into the magnesium-based solid hydrogen storage device again, so that the hydrogen is continuously released by the hydrogen storage device. The hydrogen supply system of the magnesium-based solid hydrogen storage device has the characteristics of high volume hydrogen storage density, simple structure, low cost and high safety.
Description
Technical Field
The invention relates to the field of fuel cell systems, in particular to a magnesium-based solid hydrogen storage and supply system device for a solid oxide fuel cell.
Background
A Solid Oxide Fuel Cell (SOFC) is a fuel cell that generates electric power at a relatively high temperature by supplying a fuel gas such as hydrogen gas to an anode and air to a cathode, using an oxide ion conductor as an electrolyte. The power generation efficiency of the solid oxide fuel cell is 45-50%, and the residual energy is wasted in a heat mode.
The current hydrogen storage mode mainly comprises high-pressure hydrogen, liquid hydrogen and solid hydrogen. However, high-pressure hydrogen and liquid hydrogen have the defects of high safety risk, low volume hydrogen storage density, high pressurization/liquefaction energy consumption and the like, and the liquid hydrogen has the problem of easy volatilization and difficult long-term storage at the same time, so that the popularization of the high-pressure hydrogen and the liquid hydrogen is limited. The solid-state hydrogen storage, especially magnesium-based solid-state hydrogen storage, has the advantages of high mass and volume hydrogen storage density, low working pressure, abundant magnesium resources in China, long-term hydrogen storage, high safety and the like, and is considered to be one of the main ways of hydrogen storage in the future. But the main problems are that the hydrogen discharging temperature of the material is higher than 250 ℃, and the hydrogen discharging process needs a large amount of heat.
If the redundant heat of the solid oxide fuel cell is utilized for the rapid hydrogen release of the magnesium-based hydrogen storage material, the safe and efficient hydrogen supply of the solid oxide fuel cell can be realized, and the popularization and the application of the solid oxide fuel cell are facilitated.
In addition, because the hydrogen release temperature of the magnesium-based hydrogen storage material is higher, and the tail gas temperature of the solid oxide fuel cell is higher than 600-800 ℃, a proper high-temperature liquid heat conduction material is not used as a heat transfer medium at present, and the magnesium-based hydrogen storage material is greatly damaged by gaseous heat transfer media such as water vapor, air and the like, and the safety risk also exists. Therefore, there is a need for a suitable heat transfer medium for heating magnesium-based solid-state hydrogen storage devices.
Therefore, those skilled in the art have been devoted to develop a highly efficient and reliable hydrogen supply system for a magnesium-based solid-state hydrogen storage device, which can supply hydrogen while using the waste heat of the high-temperature exhaust gas of the solid oxide fuel cell.
Disclosure of Invention
In view of the above-mentioned defects of the prior art, the technical problem to be solved by the present invention is how to develop a high-efficiency and reliable hydrogen supply system for a magnesium-based solid-state hydrogen storage device, which provides hydrogen while utilizing the waste heat of the high-temperature tail gas of the solid oxide fuel cell.
In order to achieve the purpose, the invention provides a magnesium-based solid hydrogen storage and supply system device for a solid oxide fuel cell, which comprises a magnesium-based solid hydrogen storage device (1), a solid oxide fuel cell (2), a first flow dividing device (3), a second flow dividing device (4), a circulating pump (5), a first heat exchanger (6), a second heat exchanger (7), a hydrogen pipeline (8), a tail gas pipeline (9) and a valve (10);
a hydrogen outlet (15) of the magnesium-based solid-state hydrogen storage device (1) is connected with an inlet of the second flow dividing device (4), a hydrogen inlet (16) of the magnesium-based solid-state hydrogen storage device (1) is connected with an outlet of the first flow dividing device (3), one outlet of the second flow dividing device (4) is connected with the circulating pump (5), the other outlet of the second flow dividing device (4) is connected with the valve (10), the valve (10) is sequentially connected with the second heat exchanger (7) and an anode inlet (17) of the solid oxide fuel cell (2), the solid oxide fuel cell (2) is connected with the tail gas pipeline (9), the first heat exchanger (6) is respectively connected with the circulating pump (5), the hydrogen pipeline (8), the tail gas pipeline (9) and the second heat exchanger (7), the hydrogen pipeline (8) is connected with the inlet of the first flow dividing device (3);
the hydrogen supply process of the magnesium-based solid hydrogen storage and supply system device for the solid oxide fuel cell comprises the following steps:
s0: the method comprises the following initial steps: preheating the magnesium-based solid hydrogen storage device (1) to release hydrogen, enabling the hydrogen to flow to the solid oxide fuel cell (2) through the valve (10) and the second heat exchanger (7) at a certain flow rate to complete a first reaction, generating high-temperature tail gas at 600-800 ℃, and enabling the residual hydrogen to flow to the circulating pump (5);
s1: the circulating pump (5) pressurizes the hydrogen flowing out of the second flow dividing device (4) to 0.15-1.4 MPa, and then the hydrogen enters the first heat exchanger (6);
s2: high-temperature tail gas at 600-800 ℃ generated by reaction in the solid oxide fuel cell (2) flows through the first heat exchanger (6), and hydrogen pressurized by the circulating pump (5) is heated to 400-600 ℃;
s3: hydrogen heated by the first heat exchanger (6) flows into the magnesium-based solid hydrogen storage device (1) through the first flow dividing device (3), the magnesium-based hydrogen storage material (13) is heated, and hydrogen is released, wherein the temperature of the hydrogen reaches 100-450 ℃;
s4: hydrogen at 100-450 ℃ flowing out of the magnesium-based solid hydrogen storage device (1) is split in the second splitting device (4), part of the hydrogen flows to the second heat exchanger (7) through the valve (10) at a certain flow rate according to the power of the solid oxide fuel cell (2), and the rest of the hydrogen flows to the circulating pump (5);
s5: and (3) allowing the high-temperature tail gas flowing out of the first heat exchanger (6) to flow into the second heat exchanger (7), heating the hydrogen flowing into the second heat exchanger (7) to 500-700 ℃, allowing the hydrogen to flow into an anode inlet (17) of the solid oxide fuel cell (2), reacting to generate high-temperature tail gas at 600-800 ℃, and circulating the tail gas from S1 to S5.
Further, magnesium-based solid-state hydrogen storage device (1) is parallelly connected by at least 1 solid-state hydrogen storage tank (11) of magnesium-based circular or square and constitutes, set up in the solid-state hydrogen storage tank of magnesium-based (11) at least two filters (12) will solid-state hydrogen storage tank of magnesium-based (11) internal partitioning becomes at least 1 independent space, pack magnesium-based hydrogen storage material (13) in the independent space, solid-state hydrogen storage tank of magnesium-based (11) are equipped with hydrogen outlet (15) with hydrogen entry (16), be located in solid-state hydrogen storage tank of magnesium-based (11) hydrogen outlet (15) top with porous dash board (14) are installed respectively to hydrogen entry (16) below.
Further, after passing through the porous punching plate (14), the hydrogen gas sequentially flows through the independent spaces partitioned by the filter (12), and the magnesium-based hydrogen storage material (13) is heated and releases the hydrogen gas.
Further, the magnesium-based hydrogen storage material (13) is one or more of magnesium, magnesium alloy and magnesium-based compound.
Further, the magnesium-based hydrogen storage material (13) is in a powder shape, a sheet shape, a block shape, a flat plate shape or a disk shape.
Further, the thickness of the filter (12) is not more than 5mm, and particles having a size of not more than 5 μm can be blocked at a filtration efficiency of 98%.
Furthermore, the number of the independent spaces is 1-10.
Further, the magnesium-based solid hydrogen storage and supply system device for the solid oxide fuel cell as claimed in claim 2, wherein the height of the independent space is 2-25 cm.
Further, the stacking volume of the magnesium-based hydrogen storage materials (13) in each independent space accounts for 60-95%.
Further, after the solid oxide fuel cell (2) stops working, the first flow dividing device (3) and the circulating pump (5) are closed, and then the second flow dividing device (4) and the valve (10) are closed.
The invention has the following technical effects:
(1) the proper heat transfer medium is found, and the hydrogen can be directly contacted with the magnesium-based hydrogen storage material due to the high specific heat capacity of the hydrogen, and the heat transfer pipeline is not required to be additionally arranged, so that the heat transfer medium is the heat transfer medium suitable for heating the magnesium-based solid-state hydrogen storage device.
(2) The invention is based on the condition that the platform hydrogen release pressure of the P-C-T line of the magnesium-based hydrogen storage material at high temperature is far higher than the actual pressure, and adopts low-pressure circulating hydrogen as the heating source of the magnesium-based hydrogen storage device, thereby realizing the rapid hydrogen release of the magnesium-based solid hydrogen storage device and greatly reducing the design and processing cost of the magnesium-based solid hydrogen storage device;
(3) through special structural design, the filter is utilized to separate an independent space, the flow direction of the high-temperature hydrogen is controlled, the circulating hydrogen is fully contacted with the magnesium-based hydrogen storage material in the independent space, the heat exchange efficiency of the high-temperature hydrogen and the hydrogen storage material is enhanced, and the hydrogen discharge rate of the magnesium-based solid hydrogen storage device is enhanced under the condition of reducing the using amount and the flow rate of the circulating hydrogen.
(4) The hydrogen supply system of the magnesium-based solid hydrogen storage device can obviously reduce the total hydrogen cost of the solid oxide fuel cell, greatly improve the hydrogen use safety and promote the popularization and application of hydrogen energy by reasonable arrangement.
The conception, the specific structure and the technical effects of the present invention will be further described with reference to the accompanying drawings to fully understand the objects, the features and the effects of the present invention.
Drawings
FIG. 1 is a schematic diagram of a hydrogen supply system of a magnesium-based solid-state hydrogen storage device for a solid oxide fuel cell in accordance with a preferred embodiment of the present invention;
FIG. 2 is a schematic three-dimensional structure of a round magnesium-based solid hydrogen storage tank according to a preferred embodiment of the present invention;
FIG. 3 is a hydrogen storage material hydrogen desorption rate profile for a magnesium-based solid state hydrogen storage device at different inlet hydrogen pressures in accordance with a preferred embodiment of the present invention;
the system comprises a 1-magnesium-based solid hydrogen storage device, a 2-solid oxide fuel cell, a 3-first flow dividing device, a 4-second flow dividing device, a 5-circulating pump, a 6-first heat exchanger, a 7-second heat exchanger, an 8-hydrogen pipeline, a 9-tail gas pipeline, a 10-valve, an 11-magnesium-based solid hydrogen storage tank, a 12-filter, a 13-magnesium-based hydrogen storage material, a 14-porous impact plate, a 15-hydrogen outlet, a 16-hydrogen inlet, a 17-anode inlet, an 18-stainless steel shell, a 19-gap and a 20-hydrogen flow direction.
Detailed Description
The technical contents of the preferred embodiments of the present invention will be more clearly and easily understood by referring to the drawings attached to the specification. The present invention may be embodied in many different forms of embodiments and the scope of the invention is not limited to the embodiments set forth herein.
In the drawings, structurally identical elements are represented by like reference numerals, and structurally or functionally similar elements are represented by like reference numerals throughout the several views. The size and thickness of each component shown in the drawings are arbitrarily illustrated, and the present invention is not limited to the size and thickness of each component. The thickness of the components may be exaggerated where appropriate in the figures to improve clarity.
Example 1
As shown in fig. 1, a magnesium-based solid-state hydrogen storage device 1 is connected to a first flow divider 3, a second flow divider 4, a circulation pump 5, a first heat exchanger 6, a second heat exchanger 7, a valve 10, a hydrogen line 8, a tail gas line 9, and a 3kW solid oxide fuel cell 2. Specifically, a hydrogen outlet 15 of the magnesium-based solid-state hydrogen storage device 1 is connected with an inlet of the second flow divider 4, a hydrogen inlet 16 of the magnesium-based solid-state hydrogen storage device 1 is connected with an outlet of the first flow divider 3, one outlet of the second flow divider 4 is connected with the circulating pump 5, the other outlet of the second flow divider 4 is connected with a valve 10, the valve 10 is sequentially connected with a second heat exchanger 7 and an anode inlet 17 of the solid oxide fuel cell 2, the solid oxide fuel cell 2 is connected with a tail gas pipeline 9, the first heat exchanger 6 is respectively connected with the circulating pump 5, a hydrogen pipeline 8, the tail gas pipeline 9 and the second heat exchanger 7, and the hydrogen pipeline 8 is connected with an inlet of the first flow divider 3;
as shown in fig. 2, the magnesium-based solid-state hydrogen storage device 1 is composed of 1 round magnesium-based solid-state hydrogen storage tank 11, the housing of which is a stainless steel housing 18. 26kg of magnesium powder (namely magnesium-based hydrogen storage material 13) is filled in the magnesium-based solid hydrogen storage tank 11, the designed hydrogen storage amount is 1.65kg, and 6 filters 12 divide the magnesium-based solid hydrogen storage tank 11 into 5 independent spaces with gaps 19. Each of the independent spaces was 6.25cm in height, the volume ratio of the packed magnesium powder to the independent space was 80%, the filter 12 was a stainless powder sintered filter having a thickness of 3mm and a particle size of 3 μm blocked at a filtration efficiency of 98%. The magnesium-based solid hydrogen storage tank 11 is provided with a hydrogen outlet 15 and a hydrogen inlet 16, a porous punching plate (14) is arranged near the hydrogen outlet 15 and the hydrogen inlet 16, hydrogen flows in from the hydrogen inlet 16 along a hydrogen flow direction 20, and the hydrogen flows out from the hydrogen outlet 15.
The magnesium-based solid hydrogen storage device 1 starts to supply hydrogen according to the following steps:
s0: after the solid oxide fuel cell 2 and the magnesium-based solid hydrogen storage device 1 are preheated by the prior art, the solid oxide fuel cell 2 starts to operate to generate power.
S1: the circulating pump 5 pressurizes the 280 ℃ hydrogen flowing out of the second flow dividing device 4 to 1 MPa;
s2: flowing the high-temperature tail gas of the solid oxide fuel cell 2 at 750 ℃ through a first heat exchanger 6, and heating the hydrogen pressurized by a circulating pump 5 to 600 ℃;
s3: the hydrogen heated by the first heat exchanger 6 is divided by the first flow dividing device 3 and flows into the magnesium-based solid hydrogen storage tank 11 at the pressure of 0.23MPa, so as to heat the magnesium-based hydrogen storage material 13 and release the hydrogen in the magnesium-based hydrogen storage material 13;
s4: the 280 ℃ hydrogen gas flowing out of the magnesium-based solid hydrogen storage tank 11 is divided in the second flow dividing device 4, a part of the hydrogen gas flows to the solid oxide fuel cell 2 through the valve 10 at the flow rate of 1.2g/min according to the requirement of 1kW of actual power of the solid oxide fuel cell 2, and the rest hydrogen gas flows to the circulating pump 5;
s5: the high-temperature tail gas flowing out of the first heat exchanger 6 flows into the second heat exchanger 7, and the hydrogen flowing out of the valve 10 flows into the anode of the solid oxide fuel cell 2 after being heated to 500 ℃.
The solid oxide fuel cell 2 stops working after completing power generation for 23 hours at the power of 1kW, and the first flow dividing device 3 and the circulating pump 5 are closed first, and then the second flow dividing device 4 and the valve 10 are closed.
As shown in fig. 3, during operation, the hydrogen discharge rate of the magnesium-based hydrogen storage material 13 in the magnesium-based solid-state hydrogen storage device 1 can be adjusted by adjusting the pressure of hydrogen gas flowing into the magnesium-based solid-state hydrogen storage device 1 by using the first flow dividing device 3 according to the power requirements of the solid oxide fuel cell 2.
The above is not relevant and is applicable to the prior art.
The magnesium-based solid hydrogen storage device hydrogen supply system for the solid oxide fuel cell provided by the invention has the advantages of high volume hydrogen storage density, low cost and normal working pressure of not higher than 1.4MPa, and meanwhile, hydrogen is adopted to heat the magnesium-based hydrogen storage material for hydrogen discharge, a heat transfer pipe does not need to be designed in the hydrogen storage tank, so that the safety risk caused by the rupture of the heat transfer pipe is avoided, and the safety is higher. In addition, the waste heat of the solid oxide fuel cell is fully utilized, the high-efficiency low-cost hydrogen discharge of the magnesium-based solid hydrogen storage device is realized, the total hydrogen consumption cost is reduced, and the method has very important significance for the popularization and the application of the solid oxide fuel cell.
The foregoing detailed description of the preferred embodiments of the invention has been presented. It should be understood that numerous modifications and variations could be devised by those skilled in the art in light of the present teachings without departing from the inventive concepts. Therefore, the technical solutions available to those skilled in the art through logic analysis, reasoning and limited experiments based on the prior art according to the concept of the present invention should be within the scope of protection defined by the claims.
Claims (10)
1. A magnesium-based solid hydrogen storage and supply system device for a solid oxide fuel cell is characterized by comprising a magnesium-based solid hydrogen storage device (1), a solid oxide fuel cell (2), a first flow dividing device (3), a second flow dividing device (4), a circulating pump (5), a first heat exchanger (6), a second heat exchanger (7), a hydrogen pipeline (8), a tail gas pipeline (9) and a valve (10);
a hydrogen outlet (15) of the magnesium-based solid-state hydrogen storage device (1) is connected with an inlet of the second flow dividing device (4), a hydrogen inlet (16) of the magnesium-based solid-state hydrogen storage device (1) is connected with an outlet of the first flow dividing device (3), one outlet of the second flow dividing device (4) is connected with the circulating pump (5), the other outlet of the second flow dividing device (4) is connected with the valve (10), the valve (10) is sequentially connected with the second heat exchanger (7) and an anode inlet (17) of the solid oxide fuel cell (2), the solid oxide fuel cell (2) is connected with the tail gas pipeline (9), the first heat exchanger (6) is respectively connected with the circulating pump (5), the hydrogen pipeline (8), the tail gas pipeline (9) and the second heat exchanger (7), the hydrogen pipeline (8) is connected with the inlet of the first flow dividing device (3);
the hydrogen supply process of the magnesium-based solid hydrogen storage and supply system device for the solid oxide fuel cell comprises the following steps:
s0: the method comprises the following initial steps: preheating the magnesium-based solid hydrogen storage device (1) to release hydrogen, enabling the hydrogen to flow to the solid oxide fuel cell (2) through the valve (10) and the second heat exchanger (7) at a certain flow rate to complete a first reaction, generating high-temperature tail gas at 600-800 ℃, and enabling the residual hydrogen to flow to the circulating pump (5);
s1: the circulating pump (5) pressurizes the hydrogen flowing out of the second flow dividing device (4) to 0.15-1.4 MPa, and then the hydrogen enters the first heat exchanger (6);
s2: high-temperature tail gas at 600-800 ℃ generated by reaction in the solid oxide fuel cell (2) flows through the first heat exchanger (6), and hydrogen pressurized by the circulating pump (5) is heated to 400-600 ℃;
s3: hydrogen heated by the first heat exchanger (6) flows into the magnesium-based solid hydrogen storage device (1) through the first flow dividing device (3), the magnesium-based hydrogen storage material (13) is heated, and hydrogen is released, wherein the temperature of the hydrogen reaches 100-450 ℃;
s4: hydrogen at 100-450 ℃ flowing out of the magnesium-based solid hydrogen storage device (1) is split in the second splitting device (4), part of the hydrogen flows to the second heat exchanger (7) through the valve (10) at a certain flow rate according to the power of the solid oxide fuel cell (2), and the rest of the hydrogen flows to the circulating pump (5);
s5: and (3) allowing the high-temperature tail gas flowing out of the first heat exchanger (6) to flow into the second heat exchanger (7), heating the hydrogen flowing into the second heat exchanger (7) to 500-700 ℃, allowing the hydrogen to flow into an anode inlet (17) of the solid oxide fuel cell (2), reacting to generate high-temperature tail gas at 600-800 ℃, and circulating the tail gas from S1 to S5.
2. The magnesium-based solid hydrogen storage and supply system device for the solid oxide fuel cell of claim 1, wherein the magnesium-based solid hydrogen storage device (1) is composed of at least 1 round or square magnesium-based solid hydrogen storage tank (11) connected in parallel, at least two filters (12) are arranged in the magnesium-based solid hydrogen storage tank (11) to divide the interior of the magnesium-based solid hydrogen storage tank (11) into at least 1 independent space, magnesium-based hydrogen storage materials (13) are filled in the independent space, the magnesium-based solid hydrogen storage tank (11) is provided with the hydrogen outlet (15) and the hydrogen inlet (16), and porous baffle plates (14) are respectively arranged in the magnesium-based solid hydrogen storage tank (11) above the hydrogen outlet (15) and below the hydrogen inlet (16).
3. The magnesium-based solid-state hydrogen storage and supply system device for solid oxide fuel cell as claimed in claim 2, wherein said hydrogen gas passes through said porous punched plate (14) and then flows through the separated spaces of said filter (12) in sequence, heating said magnesium-based hydrogen storage material (13) and releasing hydrogen gas.
4. The magnesium-based solid-state hydrogen storage and supply system device for the solid oxide fuel cell of claim 2, wherein the magnesium-based hydrogen storage material (13) is one or more of magnesium, magnesium alloy, and magnesium-based composite.
5. The magnesium-based solid state hydrogen storage and supply system device for solid oxide fuel cell of claim 2, wherein the magnesium-based hydrogen storage material (13) is in the form of powder, flakes, blocks, plates or discs.
6. A magnesium based solid state hydrogen storage and supply system assembly for solid oxide fuel cells as claimed in claim 2, wherein said filter (12) has a thickness of no more than 5mm and is capable of blocking particles having a size of no more than 5 μm at a filtration efficiency of 98%.
7. The magnesium-based solid-state hydrogen storage and supply system device for the solid oxide fuel cell of claim 2, wherein the number of the independent spaces is 1 to 10.
8. The magnesium-based solid-state hydrogen storage and supply system device for the solid oxide fuel cell of claim 2, wherein the height of the independent space is 2 to 25 cm.
9. The magnesium-based solid-state hydrogen storage and supply system device for the solid oxide fuel cell as claimed in claim 2, wherein the magnesium-based hydrogen storage material (13) in each of the independent spaces has a stacking volume of 60 to 95%.
10. The magnesium-based solid-state hydrogen storage and supply system device for the solid oxide fuel cell as claimed in claim 1, wherein after the solid oxide fuel cell (2) stops working, the first flow dividing device (3) and the circulating pump (5) are closed, and then the second flow dividing device (4) and the valve (10) are closed.
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CN117006401A (en) * | 2023-07-07 | 2023-11-07 | 惠州市华达通气体制造股份有限公司 | Solid hydrogen storage member, apparatus and method for manufacturing solid hydrogen storage member |
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