Hydrogen production by electrolysis of water coupled with co-production of biomass high-value products

Abstract

This application relates to the field of hydrogen production technology and discloses a co-production equipment for hydrogen production coupled with high-value biomass products via water electrolysis. The equipment includes: a liquid supply module, an electrolyzer, a gas treatment module, and a liquid treatment module. The electrolyzer is connected to the liquid supply module to receive an organic mixture supplied by the module. The gas treatment module includes a gas-liquid separator and a hydrogen output pipe. The inlet of the gas-liquid separator is connected to the cathode output side of the electrolyzer, and the exhaust port of the gas-liquid separator is connected to the hydrogen output pipe. The liquid treatment module includes a crystallization vessel and an organic product output pipe. The crystallization vessel is connected to the anode output side of the electrolyzer to mix the anode reaction solution with acid. The organic product output pipe is connected to the crystallization vessel to discharge the crystallized organic product from the vessel. This co-production equipment can achieve low-energy consumption, high selectivity, and high-efficiency synergistic production of hydrogen and high-value organic products.

Description

Technical Field

[0001] This application relates to the field of hydrogen production technology, and in particular to a co-production equipment for hydrogen production by electrolysis of water coupled with high-value biomass products. Background Technology

[0002] In existing technologies, replacing the energy-intensive oxygen evolution reaction with an organic oxidation reaction can simultaneously generate high-value products at the anode and produce high-purity hydrogen at the cathode, thus constructing an electrochemical cogeneration system that combines energy conversion and resource value-added functions.

[0003] However, most experimental systems are difficult to achieve continuous production, and the anode products and residual electrolyte are difficult to separate efficiently, resulting in low product purity, unstable yield, and a lack of modularly integrated device design. Summary of the Invention

[0004] This application provides an equipment for co-producing hydrogen from water electrolysis coupled with high-value biomass products, which can achieve low-energy consumption, high selectivity, and high efficiency in the synergistic preparation of hydrogen and high-value organic products.

[0005] To achieve the above objectives, the main technical solutions adopted in this application include: In a first aspect, embodiments of this application provide an electrolysis water-to-hydrogen co-production equipment coupled with high-value biomass products, comprising: a liquid supply module, an electrolyzer, a gas treatment module, and a liquid treatment module; the electrolyzer is connected to the liquid supply module to receive an organic mixture provided by the liquid supply module; the gas treatment module includes a gas-liquid separator and a hydrogen output pipe, the inlet of the gas-liquid separator is connected to the cathode output side of the electrolyzer, and the exhaust port of the gas-liquid separator is connected to the hydrogen output pipe; the liquid treatment module includes a crystallization vessel and an organic product output pipe, the crystallization vessel is connected to the anode output side of the electrolyzer to mix the anode reaction solution with acid, and the organic product output pipe is connected to the crystallization vessel to discharge the crystallized organic product from the crystallization vessel.

[0006] According to the embodiment of this application, the electrolytic water hydrogen production coupled with biomass high-value product co-production equipment integrates the liquid supply module, electrolytic cell, gas treatment module and liquid treatment module together to achieve continuous production. At the same time, due to the liquid treatment module, efficient separation of the anode reaction liquid and product purification can be achieved, while ensuring high-purity output of cathode hydrogen, so as to achieve dual high-value utilization of energy and materials.

[0007] In some embodiments of this application, the liquid processing module further includes a cooling assembly for cooling the crystallization vessel.

[0008] In some embodiments of this application, the cooling assembly includes a cold source and a heat exchange tube, the cold source being in communication with the heat exchange tube, and the heat exchange tube being arranged around the outer periphery of the crystallization vessel to cool the crystallization vessel.

[0009] In some embodiments of this application, the cold source is configured as a semiconductor cold source, the cold end of the semiconductor cold source is connected to the heat exchange tube, and the cooling assembly further includes a heat sink adapted to exchange heat with the hot end of the semiconductor cold source.

[0010] In some embodiments of this application, the cooling assembly further includes an insulation shell, which has an insulation chamber, and the cold source and the heat exchange tube are disposed in the insulation chamber.

[0011] In some embodiments of this application, the liquid supply module includes an alkali input pipe, an organic liquid input pipe, and a mixing pipe. The inlet of the mixing pipe is connected to the outlet of the alkali input pipe and the outlet of the organic liquid input pipe, and the outlet of the mixing pipe is connected to the electrolytic cell.

[0012] In some embodiments of this application, the outlet of the mixing tube is connected to the anode input side of the electrolytic cell.

[0013] In some embodiments of this application, the electrolysis water hydrogen production coupled with biomass high-value product co-production equipment further includes a waste liquid output pipe, which is connected to the liquid outlet of the gas-liquid separator and the liquid outlet of the crystallization kettle, respectively.

[0014] In some embodiments of this application, the electrolysis water hydrogen production coupled with biomass high-value product co-production equipment further includes a water supply module, the water supply module including a water supply pipe, and the drain outlet of the water supply pipe can be selectively connected to the electrolysis cell.

[0015] In some embodiments of this application, the electrolysis water hydrogen production coupled with biomass high-value product co-production equipment further includes a shell, which encloses a receiving chamber, and the liquid supply module, the electrolytic cell, the gas treatment module and the liquid treatment module are all disposed in the receiving chamber.

[0016] In some embodiments of this application, the electrolysis water hydrogen production coupled with biomass high-value product co-production equipment further includes a strong acid input pipe, the outlet of which is connected to the space inside the crystallization vessel.

[0017] In some embodiments of this application, a drying tube is provided between the exhaust port of the gas-liquid separator and the hydrogen output pipe, the drying tube being adapted to dry the hydrogen discharged from the gas-liquid separator. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the specific embodiments of this application or the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this application. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of an equipment for co-producing hydrogen from water electrolysis coupled with high-value biomass products according to an embodiment of this application.

[0020] Figure reference numerals: Co-production equipment 100, Electrolytic cell control box 1, DC power supply 2, Outer shell 3, Insulation shell 4, Crystallization vessel 5, Semiconductor cold source 6, Heat exchange tube 7, Radiator 8, Organic product output tube 9, Alkali input tube 10, Waste liquid output tube 11, Hydrogen output tube 12, Drying tube 13, Organic liquid input tube 14, Gas-liquid separator 15, Alkali pump 16, Organic liquid pump 17, Pump control box 18, Pump operation indicator light 19, Pump operation panel 20, Alkali pump operation adjustment knob 21, Equipment operation indicator light 22, Organic liquid pump operation adjustment knob 23, Equipment operation switch 24, Observation window 25, Electrolytic cell 26, Electrolytic cell electrical parameter panel 27, Electrolytic cell voltage adjustment knob 28, Electrolytic cell current adjustment knob 29, Electrolytic cell temperature adjustment knob 30, Temperature parameter panel 31, Semiconductor cold source temperature adjustment knob 32, Electrical operation indicator light 33, Temperature operation indicator light 34. Detailed Implementation

[0021] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0022] Unless otherwise defined, all technical and scientific terms used in this application have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains; the terminology used in the description of this application is for the purpose of describing particular embodiments only and is not intended to limit the application; the terms "comprising" and "having," and any variations thereof, in the description, claims, and accompanying drawings of this application are intended to cover non-exclusive inclusion. The terms "first," "second," etc., in the description, claims, or accompanying drawings of this application are used to distinguish different objects, not to describe a specific order or hierarchy.

[0023] In this application, the reference to "embodiment" means that a specific feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a mutually exclusive, independent, or alternative embodiment. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described in this application can be combined with other embodiments.

[0024] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," and "attachment" 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 direct connection or an indirect connection through an intermediate medium; and they can refer to the internal communication between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0025] In this application, the term "and / or" is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, or B existing alone. Additionally, in this application, the character " / " generally indicates that the preceding and following related objects have an "or" relationship.

[0026] In this application, "multiple" refers to two or more (including two), similarly, "multiple sets" refers to two or more (including two sets), and "multiple pieces" refers to two or more (including two pieces).

[0027] Hydrogen (H2) is a clean energy source with high energy density and zero carbon emissions. Its calorific value reaches 143 kJ / g, making it a crucial energy carrier for achieving a low-carbon energy system and carbon neutrality. Compared to the carbon emissions associated with hydrogen production from fossil fuel reforming, water electrolysis technology can produce "green hydrogen" with zero carbon emissions throughout the entire process. Therefore, it has significant advantages in sustainable energy systems and has received widespread attention in recent years.

[0028] Traditional water electrolysis involves two half-reactions: the hydrogen evolution reaction (HER) at the cathode and the oxygen evolution reaction (OER) at the anode. HER is a relatively simple two-electron transfer process that can occur at lower potentials; however, OER is a complex four-electron transfer reaction with slow kinetics and high energy barriers. This results in low overall electrolysis efficiency, and the limited added value of the oxygen produced at the anode leads to low energy utilization. Although the theoretical electrolysis voltage is only 1.23V, the operating voltage of actual industrial electrolyzers is typically higher than 1.8V, resulting in hydrogen production energy consumption of 4.5–5 kWh / Nm³, with electricity costs accounting for 50%–80% of the total hydrogen production cost. Therefore, reducing the energy consumption of water electrolysis for hydrogen production and improving overall reaction efficiency have become key directions for current technological development.

[0029] In recent years, researchers have proposed replacing the energy-intensive oxygen evolution reaction (OER) with organic oxidation reactions, achieving dual optimization of product value-added and electrolysis energy consumption through anodic electrocatalytic oxidation. Biomass-derived small molecules (such as 2,5-hydroxymethylfurfural and furfural) possess abundant oxidizable functional groups such as aldehydes and hydroxyl groups, enabling them to be electrocatalytically oxidized at lower potentials to generate high-value-added chemicals (such as 2,5-furandicarboxylic acid, furoic acid, and glucose), thereby significantly reducing the reaction voltage of the electrolyzer. Through this "organic small molecule oxidation-hydrogen evolution coupling" strategy, high-value products can be generated at the anode while high-purity hydrogen is produced at the cathode, constructing an electrochemical cogeneration system that combines energy conversion and resource value-added functions.

[0030] However, in existing technologies, most experimental systems are difficult to achieve continuous production. The anode product and residual electrolyte are difficult to separate efficiently, resulting in low product purity, unstable yields, and a lack of modularly integrated device designs.

[0031] Therefore, there is an urgent need to develop an integrated co-production system that combines water electrolysis for hydrogen production and biomass organic small molecule oxidation. This system should be able to achieve efficient separation of the anolyte and purification of the product, while ensuring high-purity output of hydrogen from the cathode, so as to realize the dual high-value utilization of energy and materials.

[0032] This invention addresses the aforementioned problems by proposing a novel system for the co-production of hydrogen from water electrolysis coupled with high-value biomass products. Through modular structural design and reaction process optimization, it achieves low-energy consumption, high selectivity, and high efficiency in the synergistic preparation of hydrogen and high-value organic products.

[0033] The electrolytic water hydrogen production equipment 100 coupled with biomass high-value products according to the embodiments of this application is characterized by comprising a liquid supply module, an electrolytic cell 26, a gas treatment module and a liquid treatment module.

[0034] The liquid supply module is used to supply an organic mixture to the electrolytic cell 26. The organic mixture can be a mixture of alkaline liquid and organic liquid.

[0035] Alkaline solutions can enhance the conductivity of organic liquids and increase the reactivity of organic compounds. These organic liquids can be aqueous solutions of 2,5-hydroxymethylfurfural, furfural, glucose, etc. The mixing ratio in the mixing tube can be adjusted by the flow rate ratio of the alkali pump and the organic liquid pump.

[0036] Electrolyzer 26 is connected to the liquid supply module to receive the organic mixture provided by the liquid supply module. Anode electrolyte (organic mixture), electrical energy, and heat energy are input into electrolyzer 26, and hydrogen gas and anolyte are generated after an electrochemical reaction.

[0037] The electrolytic cell 26 has an anode and a cathode. The anode can be electrochemically treated and can be made of nickel-based or copper-based electrode materials. The membrane between the anode and the cathode can be a proton exchange membrane or anion exchange membrane. The electrical operating parameters and temperature parameters of the electrolytic cell 26 are collected by sensors.

[0038] The gas processing module includes a gas-liquid separator 15 and a hydrogen output pipe 12. As the name suggests, the gas-liquid separator 15 can separate a mixture of gas and liquid into gas and liquid. Specifically, the gas-liquid separator 15 of this application can separate the mixture into hydrogen and water (or other liquids).

[0039] The inlet of the gas-liquid separator 15 is connected to the cathode output side of the electrolytic cell 26, and the exhaust port of the gas-liquid separator 15 is connected to the hydrogen output pipe 12. The mixed gas generated at the cathode output side of the electrolytic cell 26 will enter the gas-liquid separator 15. After gas-liquid separation, the hydrogen will be initially purified, and the hydrogen will enter the hydrogen output pipe 12 from the exhaust port of the gas-liquid separator 15.

[0040] The liquid treatment module includes a crystallization vessel 5 and an organic product output pipe 9. The crystallization vessel 5 is connected to the anode output side of the electrolytic cell 26. After the anodic electrochemical reaction in the electrolytic cell 26, the organic mixture becomes the anodic reaction solution. The anodic reaction solution undergoes acid mixing in the crystallization vessel 5. After a strong acid replaces a weak acid reaction, the organic product in the anodic reaction solution crystallizes. The crystallized product is then filtered within the crystallization vessel 5. The organic product output pipe 9 is connected to the crystallization vessel 5 to discharge the crystallized organic product from the crystallization vessel 5.

[0041] According to the embodiment of this application, the electrolytic water hydrogen production coupled biomass high-value product co-production equipment 100 integrates the liquid supply module, electrolytic cell 26, gas treatment module and liquid treatment module together to achieve continuous production. At the same time, due to the liquid treatment module, efficient separation of anode reaction liquid and product purification can be achieved, while ensuring high-purity output of cathode hydrogen, so as to achieve dual high-value utilization of energy and materials.

[0042] According to some embodiments of this application, the liquid processing module further includes a cooling assembly for cooling the crystallization vessel 5.

[0043] The cooling system can provide a low-temperature environment for the crystallizer 5, so that the organic matter can crystallize after the anode reaction solution is mixed with acid, which can be easily filtered by the filter screen, achieving efficient separation of organic products from residual electrolyte, and ensuring that the organic products have high purity and stable yield.

[0044] According to some embodiments of this application, the cooling assembly includes a cold source and a heat exchange tube 7. The cold source is connected to the heat exchange tube 7, and the heat exchange tube 7 is arranged around the outer periphery of the crystallization vessel 5 to cool the crystallization vessel 5.

[0045] A cold source provides cooling to the heat exchange tube 7, which is connected to the heat exchange tube 7 and is arranged around the outer periphery of the crystallization vessel 5. This allows the heat exchange tube 7 to cool the crystallization vessel 5 more evenly, ensuring better crystallization of the anolyte reaction solution within the crystallization vessel 5.

[0046] In some embodiments of this application, the cold source is constructed as a semiconductor cold source 6, the cold end of the semiconductor cold source 6 is connected to the heat exchange tube 7, and the cooling assembly also includes a heat sink 8, which is adapted to exchange heat with the hot end of the semiconductor cold source 6.

[0047] The low-temperature cooling medium located at the cold end of the semiconductor cold source 6 can enter the heat exchange tube 7 and exchange heat with the crystallization vessel 5. After absorbing heat, the cooling medium heats up and enters the hot end of the semiconductor cold source 6. At this location, it exchanges heat with the heat sink 8, thereby the heat sink 8 carries away the heat, causing the high-temperature cooling medium to become a low-temperature cooling medium.

[0048] In some embodiments of this application, the cooling assembly further includes an insulation shell 4, which has an insulation chamber. A cold source and heat exchange pipe 7 are disposed within the insulation chamber. The insulation shell 4 can reduce the amount of heat exchange between the insulation chamber and the outside environment, keeping the insulation chamber within a lower temperature range. This allows the crystallizing vessel 5 to remain in a relatively stable low-temperature environment, while also reducing the energy consumption of the cold source.

[0049] In some embodiments of this application, the liquid supply module includes an alkaline liquid input pipe 10, an organic liquid input pipe 14, and a mixing pipe. The inlet of the mixing pipe is connected to the outlet of the alkaline liquid input pipe 10 and the outlet of the organic liquid input pipe 14, and the outlet of the mixing pipe is connected to the electrolytic cell 26.

[0050] The alkaline solution enters the mixing tube from the alkaline solution inlet pipe 10, and the organic liquid enters the mixing tube from the organic liquid inlet pipe 14, so that the alkaline solution and the organic liquid can be mixed in the mixing tube. The mixed organic liquid can then enter the electrolytic cell 26 from the mixing tube.

[0051] Organic liquid can flow in organic liquid inlet pipe 14 under the drive of organic liquid pump 17, and alkaline liquid can flow in alkaline liquid inlet pipe 10 under the drive of alkaline liquid pump 16.

[0052] According to some embodiments of this application, the outlet of the mixing pipe is connected to the anode input side of the electrolytic cell 26. That is, the electrolytic cell 26 adopts a single-sided anode inlet, and the organic mixture will only enter the anode area of ​​the electrolytic cell 26, thereby avoiding cathode pipe contamination and improving the conversion rate of organic matter at the anode.

[0053] In some embodiments of this application, the electrolysis water hydrogen production coupled biomass high-value product co-production equipment 100 also includes a waste liquid output pipe 11, which is connected to the liquid outlet of the gas-liquid separator 15 and the liquid outlet of the crystallization kettle 5, respectively.

[0054] Therefore, the waste liquid separated by the gas-liquid separator 15 can be discharged through the waste liquid outlet pipe 11, and the waste liquid in the crystallizing kettle 5 can be discharged through the waste liquid outlet pipe 11 after crystallization.

[0055] According to some embodiments of this application, the electrolysis water hydrogen production coupled biomass high-value product co-production equipment 100 also includes a water supply module, which includes a water supply pipe, and the drain outlet of the water supply pipe can be selectively connected to the electrolyzer 26.

[0056] Therefore, the water electrolysis hydrogen production coupled with biomass high-value product co-production equipment 100 of this application embodiment can not only utilize organic mixed liquid to produce hydrogen and high-value products, but also adopt traditional hydrogen production methods, that is, to produce hydrogen and oxygen through water electrolysis. This improves the adaptability of the water electrolysis hydrogen production coupled with biomass high-value product co-production equipment 100, allowing it to select appropriate methods for hydrogen production under different operating conditions.

[0057] According to some embodiments of this application, the electrolysis water hydrogen production coupled biomass high-value product co-production equipment 100 also includes a shell 3, which encloses a receiving chamber, in which the liquid supply module, electrolytic cell 26, gas treatment module and liquid treatment module are all disposed.

[0058] In other words, the electrolysis water hydrogen production coupled biomass high-value product co-production equipment 100 of this application embodiment has a high degree of integration and can achieve continuous production while occupying a small space.

[0059] In some embodiments of this application, the electrolysis water hydrogen production coupled biomass high-value product co-production equipment 100 further includes a strong acid input pipe, the outlet of which is connected to the space inside the crystallization kettle 5.

[0060] The crystallization vessel 5 can be pre-filled with a strong acid. After the anolyte enters the crystallization vessel 5, it reacts with the strong acid, thereby achieving crystallization at a low temperature. Alternatively, strong acid can be introduced into the crystallization vessel 5 through a strong acid inlet pipe, allowing for the injection of strong acid into the crystallization vessel 5 as needed.

[0061] According to some embodiments of this application, a drying tube 13 is provided between the exhaust port of the gas-liquid separator 15 and the hydrogen output pipe 12. The drying tube 13 is adapted to dry the hydrogen discharged from the gas-liquid separator 15. After the hydrogen undergoes preliminary purification in the gas-liquid separator 15, it can re-enter the drying tube 13 for further purification.

[0062] Specific examples Figure 1 The power supply components shown mainly involve DC power supply 2, which converts external input power into DC output. Part of it is input through the external power grid to power the control module, and the other part can be connected to renewable energy sources or the power grid to power the electrolytic cell.

[0063] Specific examples Figure 1 The control module shown mainly includes an electrolytic cell control box 1, a pump control box 18, a pump operation indicator light 19, a pump operation panel 20, an alkali pump operation adjustment knob 21, an equipment operation indicator light 22, an organic liquid pump operation adjustment knob 23, an equipment operation switch 24, an observation window 25, an electrolytic cell 26, an electrolytic cell electrical parameter panel 27, an electrolytic cell voltage adjustment knob 28, an electrolytic cell current adjustment knob 29, an electrolytic cell temperature adjustment knob 30, a temperature parameter panel 31, a semiconductor cold source temperature adjustment knob 32, an electrical operation indicator light 33, and a temperature operation indicator light 34. The control module is used to collect data distributed in each module. The sensor, valve and other parameters are stored and can be adjusted and controlled through the front panel (pump operation panel 20, temperature parameter panel 31 and electrical operation indicator 33), indicator lights (pump operation indicator 19, equipment operation indicator 22, electrical operation indicator 33, temperature operation indicator 34) and knobs (alkali pump operation adjustment knob 21, organic liquid pump operation adjustment knob 23, equipment operation switch 24, electrolytic cell voltage adjustment knob 28, electrolytic cell current adjustment knob 29, electrolytic cell temperature adjustment knob 30, semiconductor cold source temperature adjustment knob 32). It can also be connected to a host computer through the communication interface for remote control.

[0064] It should also be noted that the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0065] The various embodiments in this specification are described in a progressive manner. Similar or identical parts between embodiments can be referred to interchangeably. Each embodiment focuses on describing the differences from other embodiments. In particular, the system embodiments are basically similar to the method embodiments, so the description is relatively simple; relevant parts can be referred to the descriptions in the method embodiments.

[0066] The above description is merely an embodiment of this application and is not intended to limit the scope of this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the scope of the claims of this application.

[0067] Although embodiments of this application have been described in conjunction with the accompanying drawings, those skilled in the art can make various modifications and variations without departing from the spirit and scope of this application, and such modifications and variations all fall within the scope defined by the appended claims.

Claims

1. A co-production equipment for hydrogen production via water electrolysis coupled with high-value biomass products, characterized in that, include: Liquid supply module; An electrolytic cell is connected to the liquid supply module to receive the organic mixture provided by the liquid supply module; A gas processing module includes a gas-liquid separator and a hydrogen output pipe. The inlet of the gas-liquid separator is connected to the cathode output side of the electrolytic cell, and the exhaust port of the gas-liquid separator is connected to the hydrogen output pipe. The liquid processing module includes a crystallization vessel and an organic product output pipe. The crystallization vessel is connected to the anode output side of the electrolytic cell to mix the anode reaction solution with acid. The organic product output pipe is connected to the crystallization vessel to discharge the organic product crystallized in the crystallization vessel.

2. The equipment for co-producing hydrogen from water electrolysis coupled with high-value biomass products according to claim 1, characterized in that, The liquid processing module also includes a cooling component for cooling the crystallization vessel.

3. The equipment for co-producing hydrogen from water electrolysis coupled with high-value biomass products according to claim 2, characterized in that, The cooling assembly includes a cold source and a heat exchange tube. The cold source is connected to the heat exchange tube, and the heat exchange tube is arranged around the outer periphery of the crystallization vessel to cool the crystallization vessel.

4. The equipment for co-producing hydrogen from water electrolysis coupled with high-value biomass products according to claim 3, characterized in that, The cold source is constructed as a semiconductor cold source, the cold end of which is connected to the heat exchange tube. The cooling assembly also includes a heat sink, which is adapted to exchange heat with the hot end of the semiconductor cold source.

5. The equipment for co-producing hydrogen from water electrolysis coupled with high-value biomass products according to claim 3, characterized in that, The cooling assembly also includes an insulation shell, which has an insulation chamber inside, and the cold source and the heat exchange tube are disposed in the insulation chamber.

6. The equipment for co-producing hydrogen from water electrolysis coupled with high-value biomass products according to claim 1, characterized in that, The liquid supply module includes an alkali input pipe, an organic liquid input pipe, and a mixing pipe. The inlet of the mixing pipe is connected to the outlet of the alkali input pipe and the outlet of the organic liquid input pipe, and the outlet of the mixing pipe is connected to the electrolytic cell.

7. The equipment for co-producing hydrogen from water electrolysis coupled with high-value biomass products according to claim 6, characterized in that, The outlet of the mixing pipe is connected to the anode input side of the electrolytic cell.

8. The equipment for co-producing hydrogen from water electrolysis coupled with high-value biomass products according to claim 1, characterized in that, It also includes a waste liquid output pipe, which is connected to the liquid outlet of the gas-liquid separator and the liquid outlet of the crystallization vessel, respectively.

9. The equipment for co-producing hydrogen from water electrolysis coupled with high-value biomass products according to claim 1, characterized in that, It also includes a water supply module, which includes a water supply pipe, the drain outlet of which can be selectively connected to the electrolytic cell.

10. The equipment for co-producing hydrogen from water electrolysis coupled with high-value biomass products according to claim 1, characterized in that, It also includes an outer shell that encloses a receiving chamber, in which the liquid supply module, the electrolytic cell, the gas processing module, and the liquid processing module are all disposed.

11. The equipment for co-producing hydrogen from water electrolysis coupled with high-value biomass products according to claim 1, characterized in that, It also includes a strong acid input pipe, the outlet of which is connected to the space inside the crystallization vessel.

12. The equipment for co-producing hydrogen from water electrolysis coupled with high-value biomass products according to claim 1, characterized in that, A drying tube is provided between the exhaust port of the gas-liquid separator and the hydrogen output pipe, and the drying tube is adapted to dry the hydrogen discharged from the gas-liquid separator.

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