Integrated Hydrogen Production, Storage, and Seawater Desalination Unit Utilizing Full-Spectrum Frequency Division of Solar Energy

Abstract

This invention discloses an integrated hydrogen production, storage, and seawater desalination device utilizing the full spectrum of solar energy. From the inside out, it comprises a photocatalytic hydrogen production system, a catalytic hydrogen storage system, and a thermal evaporation seawater desalination system. The photocatalytic hydrogen production system absorbs ultraviolet light and some visible light to catalytically decompose water and produce hydrogen. Some visible and infrared light wavelengths are absorbed by the photocatalyst and photocatalytic solution and converted into heat. The catalytic hydrogen storage system absorbs unused visible and infrared light wavelengths and converts them into heat, transferring the waste heat generated by the photocatalytic hydrogen production system to the catalytic hydrogen storage system. The hydrogen produced by photocatalysis is transferred to the catalytic hydrogen storage system as a hydrogen source for hydrogen addition, achieving full-spectrum frequency-division hydrogen production and storage, and simultaneously realizing integrated hydrogen production and storage. The thermal evaporation seawater desalination system utilizes the waste heat from the catalytic hydrogen storage system to drive seawater evaporation to produce fresh water, achieving efficient full-spectrum utilization of solar energy.

Description

Technical Field

[0001] This invention belongs to the fields of full-spectrum solar energy utilization, hydrogen energy and seawater desalination technology, and specifically relates to an integrated device for hydrogen production, storage and seawater desalination using full-spectrum solar energy frequency division. Background Technology

[0002] Hydrogen boasts numerous advantages, including being green and low-carbon, abundant in resources, renewable, and having high energy density. It is hailed as the most promising secondary energy source of the 21st century and is of great significance for building a clean, low-carbon, safe, and efficient energy system. Currently, the most promising and feasible pathways for hydrogen production include solar-powered water splitting and water electrolysis driven by wind or photovoltaic power generation. Among these, solar-powered water splitting is simple, has a mild reaction, and requires minimal equipment investment. Hydrogen can be produced simply by irradiating a liquid-phase suspension system of catalyst powder with abundant sunlight, without the need for costly electrolyzers, photovoltaic power generation, or wind power equipment. Furthermore, it avoids the slow mass transfer process of water on a limited electrode surface, making it the ideal low-cost method for producing green hydrogen.

[0003] The wavelength of sunlight is mainly distributed between 200-2500 nm, with the ultraviolet region (<400 nm) accounting for only 4.6%, the visible light region (400-700 nm) accounting for 43.1%, and the infrared region (700-1000 nm) accounting for 26.4%. Since Fujishima and Honda discovered water splitting on TiO2 photoelectrodes in 1972, the study of photocatalytic water splitting has received widespread attention, and a large number of photocatalysts have been developed. Most photocatalysts are composed of semiconductor materials, which generate electron-hole pairs by absorbing incident light. If the charge carriers meet the energy requirements, they migrate to the surface and undergo redox reactions. Although semiconductor materials exhibit many excellent optical and catalytic properties, their absorption and utilization of visible and even infrared light are severely insufficient due to their inherent band structure and the matching requirements of water redox reactions. This is one of the main reasons for the current low efficiency of photocatalytic hydrogen production, and it also indicates that it is difficult to achieve high utilization of solar energy through a single photocatalytic method. It is worth noting that infrared light, which accounts for 54% of the solar spectrum energy, and a portion of visible light can often be released as heat energy through photothermal conversion. However, photocatalysis struggles to efficiently utilize this heat energy. To achieve efficient solar energy utilization, it is essential to design targeted frequency-division utilization of the entire solar spectrum. Notably, heat can effectively lower the energy barrier of catalytic hydrogen addition and storage reactions, accelerating hydrogen storage efficiency. Furthermore, research indicates that heat can also efficiently drive seawater evaporation and desalination. Therefore, photocatalysis, hydrogen storage, and seawater desalination can be organically coupled and rationally designed to achieve synergistic matching among the three, enabling frequency-division utilization of the entire solar spectrum and achieving efficient solar energy utilization. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to provide an integrated device for hydrogen production, storage and seawater desalination that utilizes the full spectrum of solar energy in a frequency-division manner, in order to solve the technical problems of efficient utilization of the full spectrum of solar energy, treatment of organic pollution and seawater desalination.

[0005] The present invention adopts the following technical solution:

[0006] The integrated hydrogen production, storage, and seawater desalination device utilizing the full spectrum of solar energy comprises, from the inside out, a photocatalytic hydrogen production system, a catalytic hydrogen addition and storage system, and a thermal evaporation seawater desalination system.

[0007] The photocatalytic hydrogen production system is used to absorb ultraviolet light and part of visible light to catalytically split water to produce hydrogen. Part of the visible light and infrared light bands are absorbed by the photocatalyst and the photocatalytic solution and converted into heat.

[0008] The catalytic hydrogenation and storage system is used to absorb the unused portion of visible and infrared light bands and convert them into heat, and transfer the waste heat generated by the photocatalytic hydrogen production system to the catalytic hydrogenation and storage system, so as to achieve the synergistic driving of the catalytic hydrogenation and storage system by the remaining solar photothermal energy and the waste heat of the photocatalytic hydrogen production system.

[0009] The hydrogen produced by photocatalysis is transferred to the catalytic hydrogen production and storage system as the hydrogen source for hydrogen addition, realizing the full spectrum frequency division of solar light for hydrogen production and storage, and realizing the integration of hydrogen production and storage.

[0010] The thermal evaporation seawater desalination system utilizes the waste heat from the catalytic hydrogenation and hydrogen storage system to drive seawater evaporation and produce fresh water, thus realizing the full utilization of the solar energy spectrum.

[0011] Preferably, a solar light source is positioned above the photocatalytic hydrogen production system.

[0012] Preferably, the hydrogen produced by the photocatalytic hydrogen production system is used as the hydrogen source for the hydrogen storage system.

[0013] Preferably, the photocatalytic hydrogen production system absorbs and utilizes ultraviolet light and part of the visible light spectrum from sunlight.

[0014] Preferably, a gas purging port is provided on the upper side of the catalytic hydrogenation and hydrogen storage system.

[0015] Preferably, the catalyst in the catalytic hydrogenation and hydrogen storage system is a hydrogenation catalyst with photothermal effect, and the hydrogen storage support is an unsaturated aldehyde, ketone, alkyne, alkenyl, or aromatic benzene ring.

[0016] Preferably, the full-spectrum frequency division utilization involves photocatalytic hydrogen production using ultraviolet light and part of the visible light, photothermal conversion using part of the visible light and infrared light, and simultaneously driving seawater evaporation and desalination.

[0017] Preferably, a condensation module is installed above the thermal evaporation seawater desalination system. One end of the condensation module is connected to a freshwater collection tank to draw in the generated freshwater, which is then output as a product from the outlet.

[0018] Preferably, the photocatalytic hydrogen production system, the catalytic hydrogen storage system, and the thermal evaporation seawater desalination system are detachable.

[0019] Preferably, the photocatalytic hydrogen production system, the catalytic hydrogen storage system, and the thermal evaporation seawater desalination system are all separated by glass with excellent light transmittance and thermal conductivity.

[0020] Compared with the prior art, the present invention has at least the following beneficial effects:

[0021] This integrated hydrogen production, storage, and seawater desalination device utilizes the full spectrum of solar energy for efficient utilization. Based on this goal, it constructs an integrated hydrogen production, storage, and seawater desalination unit. After sunlight enters the device from the inner layer as energy input, a photocatalyst absorbs and utilizes a portion of the solar energy, coupling it with organic substrates for photocatalytic hydrogen production and organic degradation. The output hydrogen enters the second layer, which employs a photothermal hydrogenation catalyst and a hydrogen storage carrier. This second layer utilizes the hydrogen input from the inner layer and the remaining solar energy, combining the hydrogen with the storage carrier under the action of the catalyst to obtain hydrogen storage material as the output product. The remaining solar energy is absorbed and converted into usable heat energy by the photothermal effect of the catalyst, promoting the hydrogen storage reaction. This remaining heat energy is then input to the outermost layer, where the seawater desalination section utilizes the input heat energy for thermal evaporation desalination, converting seawater into freshwater vapor. This vapor is then cooled and liquefied in a condensation module to output freshwater. This progressive process ultimately achieves efficient, frequency-divided utilization of the full spectrum of solar energy.

[0022] Furthermore, the xenon lamp irradiation inlet serves to simulate sunlight energy as the energy input for the system in a laboratory environment.

[0023] Furthermore, to further promote the photocatalytic hydrogen production coupled with organic degradation reaction inside the device, a first stirring magnetic point was set up to ensure that the reactants and catalyst are in full contact, thereby achieving a good hydrogen yield.

[0024] Furthermore, since the sun's energy is mainly concentrated in the visible light band, photocatalysts that efficiently absorb visible light can utilize solar energy more efficiently.

[0025] Furthermore, to ensure device safety and connectivity, and to eliminate the influence of air components on the reaction within the device, a gas purging port is provided to discharge air from the system and maintain stable gas pressure within the device.

[0026] Furthermore, in order to promote sufficient contact between the hydrogen storage carrier and the hydrogenation catalyst and thus obtain good hydrogen storage efficiency, a second stirring magnetic particle placement point is set to promote the hydrogen storage reaction.

[0027] Furthermore, substances with good photothermal effects can fully absorb light and efficiently convert the input solar energy into heat energy. Hydrogenation catalysts and hydrogen storage carriers with photothermal effects can be used for efficient hydrogen storage reactions. Setting hydrogenation catalysts and hydrogen storage carriers with photothermal effects in the second layer can simultaneously achieve efficient hydrogen storage and utilize the surplus solar energy to convert it into heat.

[0028] Furthermore, to ensure that the freshwater vapor generated by the heating of seawater can be transferred out of the device in a timely and efficient manner, a condensation module is used to liquefy the freshwater vapor and drip it into the freshwater collection tank, and the freshwater is output as the product of the device through the freshwater outlet.

[0029] Furthermore, high thermal conductivity and high light transmittance glass materials are used to ensure stable transfer of light and heat energy between systems, i.e., efficient heat transfer.

[0030] In summary, this invention utilizes sunlight entering the device system from the innermost layer as energy input, and the full spectrum of solar energy is gradually and fully utilized from the inside out, achieving efficient full spectrum utilization of solar energy, while simultaneously realizing integrated hydrogen production and storage, seawater desalination, and organic wastewater treatment.

[0031] The technical solution of the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. Attached Figure Description

[0032] To more clearly illustrate the technical solutions in the embodiments of the present invention, the accompanying drawings used in the following description of the relative embodiments will be briefly introduced. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0033] Figure 1 This is a schematic diagram of the device of the present invention.

[0034] The components include: 1. Freshwater collection tank; 2. Condensation module; 3. Inclined hook; 4. Gas purging port; 5. Bolt fixing hole; 6. Top device cover; 7. Xenon lamp irradiation inlet; 8. Organic wastewater coupled photocatalyst system; 9. Hydrogen storage system; 10. Seawater; 11. First stirring magnetic particle placement point; 12. Second stirring magnetic particle placement point; 13. First internal support column; 14. Second internal support column; 15. Freshwater outlet. Detailed Implementation

[0035] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0036] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "one side," "one end," and "one side," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are only for the convenience of describing the invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined with "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this invention, unless otherwise stated, "a plurality of" means two or more.

[0037] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0038] It should be understood that, when used in this specification and the appended claims, the terms "comprising" and "including" indicate the presence of the described features, integrals, steps, operations, elements and / or components, but do not exclude the presence or addition of one or more other features, integrals, steps, operations, elements, components and / or collections thereof.

[0039] It should also be understood that the terminology used in this specification is for the purpose of describing particular embodiments only and is not intended to limit the invention. As used in this specification and the appended claims, the singular forms “a,” “an,” and “the” are intended to include the plural forms unless the context clearly indicates otherwise.

[0040] It should also be further understood that the term "and / or" as used in this specification and the appended claims refers to any combination of one or more of the associated listed items and all possible combinations, and includes such combinations.

[0041] The accompanying drawings illustrate various structural schematic diagrams according to embodiments disclosed in this invention. These drawings are not to scale, and some details have been enlarged for clarity, and some details may have been omitted. The shapes of the various regions and layers shown in the drawings, as well as their relative sizes and positional relationships, are merely exemplary and may deviate from reality due to manufacturing tolerances or technical limitations. Furthermore, those skilled in the art can design regions / layers with different shapes, sizes, and relative positions as needed.

[0042] This invention provides an integrated device for hydrogen production, storage, and seawater desalination utilizing the full spectrum of solar energy. Considering the available waste heat from the hydrogen storage reaction, and leveraging abundant seawater resources, the desalination process is placed on the outermost layer of the device. This achieves efficient hydrogen production and storage while simultaneously utilizing excess heat for seawater desalination. The invention aims to design and construct an integrated device that synergistically promotes the degradation of organic wastewater, efficient hydrogen production and storage, and seawater desalination, ultimately realizing the efficient utilization of the full spectrum of solar energy.

[0043] Please see Figure 1 This invention discloses an integrated hydrogen production, storage, and seawater desalination device utilizing the full spectrum of solar energy for frequency division. The device includes a housing, which, from the inside out, comprises a photocatalytic system layer, a hydrogen storage system layer, and a thermal evaporation seawater desalination system layer. A xenon lamp irradiation inlet 7 is located above the photocatalytic system layer, and a first stirring magnetic dome placement point 11 is located at the bottom of the photocatalytic system layer. An organic wastewater-coupled photocatalytic system 8 is located inside the photocatalytic system layer. The photocatalytic system layer is open and connected to the hydrogen storage system layer for introducing the generated hydrogen into the hydrogen storage system layer. A hydrogen storage system 9, containing a hydrogenation catalyst with good photothermal effect and a hydrogen storage carrier, is located inside the hydrogen storage system layer. A gas purging port 4 is located on one side of the middle section, and a second stirring magnetic dome placement point 12 is located at the bottom of the hydrogen storage system layer. Seawater 10 is located inside the thermal evaporation seawater desalination system layer. An inclined hook 3 is located on one side of the thermal evaporation seawater desalination system layer for suspending and fixing a condensation module 2. One end of the condensation module 2 is connected to a freshwater collection tank 1, and the freshwater is output as the device product through a freshwater outlet 15.

[0044] Among them, the photocatalytic hydrogen production system, the catalytic hydrogen storage system, and the thermal evaporation seawater desalination system are all designed with detachable structures.

[0045] A photocatalytic system is established at the center of an integrated hydrogen production, storage, and seawater desalination device that utilizes the full spectrum of solar energy for frequency division. Hydrogen is generated using a photocatalyst and organic wastewater. The hydrogen is then introduced into the second-layer hydrogen storage system through a top opening. Simultaneously, the photothermal effect of the hydrogen catalyst absorbs excess light energy and converts it into heat energy, driving the hydrogen storage reaction in the system. A thermal evaporation seawater desalination system is established at the outermost layer, using the waste heat from the second-layer system as the driving force to desalinate seawater, thus making full use of solar energy.

[0046] For the central layer photocatalytic system, a high-efficiency photocatalyst is used, which can efficiently absorb ultraviolet and visible light. At the same time, the organic wastewater to be treated can be used as the reaction solution to achieve stable and efficient hydrogen production by photocatalysis and organic wastewater treatment.

[0047] For two-layer hydrogen storage systems, hydrogenation catalysts with good photothermal effects are preferred to ensure that the system can fully absorb the remaining light energy and convert it into usable heat energy. Unsaturated aldehydes, ketones, alkynes, alkenes, aromatic benzene rings and other small organic molecules are used as hydrogen storage carriers to realize the storage of hydrogen produced by the photocatalytic system.

[0048] For the outermost seawater desalination system, it can fully absorb and utilize the waste heat from the photocatalytic hydrogen production and storage system. At the same time, the condensation module uses materials with good thermal conductivity, such as aluminum plates, to ensure that fresh water can be fully collected.

[0049] The working principle of the integrated hydrogen production, storage, and seawater desalination device utilizing the full spectrum of solar energy for frequency division in this invention is as follows:

[0050] The three parts—photocatalysis, catalytic hydrogen addition and storage, and seawater thermal evaporation desalination—utilize the full spectrum of sunlight.

[0051] First, sunlight directly irradiates the photocatalytic system. The photocatalyst absorbs ultraviolet light and some visible light to catalytically decompose water to produce hydrogen. Some visible light and infrared light are absorbed by the photocatalyst and the photocatalytic solution and converted into heat. The photocatalytic solution can be organic wastewater, which can both produce hydrogen and degrade organic wastewater.

[0052] Secondly, the unabsorbed portion of visible and infrared light is absorbed and converted into heat by the catalyst in the catalytic hydrogenation system. The waste heat generated by the photocatalytic system can also be transferred to the catalytic hydrogenation and storage system, lowering the energy barrier of the reaction process and enabling synergistic driving of catalytic hydrogenation and storage by the remaining solar photothermal energy and the waste heat from the photocatalytic system. Simultaneously, the hydrogen produced by photocatalysis can be transferred to the catalytic hydrogenation and storage system as a hydrogen source, achieving not only full-spectrum frequency-based hydrogen production and storage from sunlight but also integrated hydrogen production and storage. The catalytic hydrogenation and storage catalyst and the hydrogen storage support can respectively employ a photothermal hydrogenation catalyst and unsaturated aldehydes, ketones, alkynes, alkenes, aromatic benzene rings, and other small organic molecule hydrogen storage supports.

[0053] Furthermore, the waste heat from the catalytic hydrogenation and hydrogen storage system is further utilized through the thermal evaporation seawater desalination system to drive seawater evaporation to produce fresh water, thus realizing the full utilization of the entire solar energy spectrum.

[0054] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. The components of the embodiments of the present invention described and shown in the accompanying drawings can generally be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0055] Firstly, in terms of device design: the focus is on achieving stable hydrogen transmission and full utilization of the full spectrum of sunlight, coordinating and connecting the three major components of hydrogen production, hydrogenation, and seawater desalination, ensuring that while light stably produces hydrogen through catalytic degradation of wastewater, unused light undergoes efficient photothermal conversion in the hydrogen storage system to promote the hydrogenation reaction, and the waste heat is transferred to seawater to achieve seawater desalination using thermal evaporation.

[0056] Secondly, regarding the hydrogen production module: the focus is on finding efficient photocatalysts to degrade wastewater and produce hydrogen in synergy, and improving the chemical feed ratio to achieve a high degree of synergy with the hydrogen storage module, so as to produce hydrogen while simultaneously degrading polluted wastewater to obtain low-concentration wastewater or even freshwater.

[0057] Meanwhile, regarding hydrogen storage modules: research is being conducted on hydrogenation reactions based on hydrogenation catalysts with good photothermal effects and hydrogen storage carriers, balancing the relationship between the ratio of reactants and hydrogen yield to achieve a high degree of synergy and stability between hydrogen production and storage modules.

[0058] Furthermore, in terms of seawater desalination: starting from traditional thermal evaporation seawater desalination, we will explore and design efficient heat exchange systems to improve the seawater heat exchange rate and thus increase the freshwater yield.

[0059] Finally, based on experimental studies on device design and matching of the three major modules, a whole-process energy and mass transfer mechanism and optimization criteria involving photocatalytic organic wastewater treatment, hydrogen storage and seawater desalination are proposed to guide the construction of a high-efficiency integrated device and realize the full-spectrum high-efficiency utilization of solar energy.

[0060] In summary, this invention presents an integrated hydrogen production, storage, and seawater desalination device utilizing the full spectrum of solar energy through frequency division. By employing a multi-system spatially directional coupling design, it achieves frequency division utilization of sunlight, enabling the synergistic execution of solar-driven photocatalytic hydrogen production, catalytic hydrogen addition and storage, and thermal evaporation seawater desalination. This not only achieves highly efficient utilization of the full spectrum of solar energy but also integrates hydrogen production and storage, seawater desalination, and the treatment of organic wastewater. The design of this device aligns with green environmental protection principles and fully responds to the national strategic need to strengthen the utilization of renewable energy.

[0061] The above content is only for illustrating the technical concept of the present invention and should not be construed as limiting the scope of protection of the present invention. Any modifications made to the technical solution based on the technical concept proposed in this invention shall fall within the scope of protection of the claims of this invention.

Claims

1. An integrated hydrogen production, storage, and seawater desalination device utilizing the full spectrum of solar energy for frequency division, characterized in that, From the inside out, it includes a photocatalytic hydrogen production system, a catalytic hydrogen addition and storage system, and a thermal evaporation seawater desalination system; The photocatalytic hydrogen production system is used to absorb ultraviolet light and part of visible light to catalytically split water to produce hydrogen. Part of the visible light and infrared light bands are absorbed by the photocatalyst and the photocatalytic solution and converted into heat. The catalytic hydrogenation and storage system is used to absorb the unused portion of visible and infrared light bands and convert them into heat, and transfer the waste heat generated by the photocatalytic hydrogen production system to the catalytic hydrogenation and storage system, so as to achieve the synergistic driving of the catalytic hydrogenation and storage system by the remaining solar photothermal energy and the waste heat of the photocatalytic hydrogen production system. The hydrogen produced by photocatalysis is transferred to the catalytic hydrogen production and storage system as the hydrogen source for hydrogen addition, realizing the full spectrum frequency division of solar light for hydrogen production and storage, and realizing the integration of hydrogen production and storage. The thermal evaporation seawater desalination system utilizes the waste heat from the catalytic hydrogenation and hydrogen storage system to drive seawater evaporation and produce fresh water, thus realizing the full utilization of the solar energy spectrum.

2. The integrated hydrogen production, storage, and seawater desalination device utilizing the full spectrum of solar energy for frequency division as described in claim 1, characterized in that, A solar light source is installed above the photocatalytic hydrogen production system.

3. The integrated hydrogen production, storage, and seawater desalination device utilizing the full spectrum of solar energy for frequency division as described in claim 2, characterized in that, The hydrogen produced by the photocatalytic hydrogen production system is used as the hydrogen source for the hydrogen storage system.

4. The integrated hydrogen production, storage, and seawater desalination device utilizing the full spectrum of solar energy for frequency division according to claim 1, 2, or 3, characterized in that, Photocatalytic hydrogen production systems absorb and utilize ultraviolet light and part of the visible light spectrum from sunlight.

5. The integrated hydrogen production, storage, and seawater desalination device utilizing the full spectrum of solar energy for frequency division as described in claim 1, characterized in that, A gas purging port is provided on one side of the catalytic hydrogenation and hydrogen storage system.

6. The integrated hydrogen production, storage, and seawater desalination device utilizing the full spectrum of solar energy for frequency division as described in claim 5, characterized in that, The catalyst in the catalytic hydrogenation and hydrogen storage system is a hydrogenation catalyst with photothermal effect, and the hydrogen storage support is an unsaturated aldehyde, ketone, alkyne, alkenyl or aromatic benzene ring.

7. The integrated hydrogen production, storage, and seawater desalination device utilizing the full spectrum of solar energy for frequency division as described in claim 1, characterized in that, Full-spectrum frequency division utilization uses ultraviolet light and part of visible light for photocatalytic hydrogen production, and part of visible light and infrared light for photothermal conversion, while simultaneously driving seawater evaporation and desalination.

8. The integrated hydrogen production, storage, and seawater desalination device utilizing the full spectrum of solar energy for frequency division as described in claim 1, characterized in that, A condensation module is installed above the thermal evaporation seawater desalination system. One end of the condensation module is connected to a freshwater collection tank to draw in the generated freshwater, which is then output as a product from the outlet.

9. The integrated hydrogen production, storage, and seawater desalination device utilizing the full spectrum of solar energy for frequency division as described in claim 1, characterized in that, The photocatalytic hydrogen production system, the catalytic hydrogen storage system, and the thermal evaporation seawater desalination system are all detachable.

10. The integrated hydrogen production, storage, and seawater desalination device utilizing the full spectrum of solar energy for frequency division according to claim 1, characterized in that, The photocatalytic hydrogen production system, the catalytic hydrogen storage system, and the thermal evaporation seawater desalination system are all separated by glass with excellent light transmittance and thermal conductivity.

Images