A comprehensive energy vessel, the Dongfang Heping, that directly produces, stores, and converts hydrogen from seawater.
By integrating wave energy, photovoltaic, and wind power systems, the integrated energy vessel utilizes direct electrolysis of seawater without desalination to produce hydrogen and electrochemical CO2 capture, solving the pollution problem of seawater hydrogen production, achieving a stable supply and efficient conversion of green fuel, and promoting the deep integration of transportation and energy.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- SHENZHEN UNIV
- Filing Date
- 2026-02-25
- Publication Date
- 2026-05-26
AI Technical Summary
Existing technologies are insufficient for efficiently producing hydrogen from seawater and ensuring safe storage and transportation. Furthermore, traditional methods suffer from pollution issues during seawater desalination and purification processes, failing to meet the continuous supply demand for green fuels.
The integrated energy vessel utilizes wave energy, photovoltaic, and wind power systems to produce hydrogen through direct electrolysis of seawater without desalination and electrochemical CO2 capture. Combined with green methanol and green ammonia synthesis, it forms an integrated energy production and conversion model of green electricity, green hydrogen, and green ammonia. It directly utilizes seawater to produce hydrogen and achieves a fully closed-loop operation through the integration of multiple original technologies.
It has enabled a continuous supply of green hydrogen energy, avoided seawater pollution and corrosion problems, improved hydrogen energy conversion efficiency, provided a stable transportation of green fuel, and promoted the deep integration of transportation and energy.
Smart Images
Figure CN122078604A_ABST
Abstract
Description
Technical Field
[0001] This invention belongs to the field of new energy and hydrogen energy, and specifically relates to an integrated energy vessel, the Dongfang Heping, which directly produces, stores, and converts hydrogen from seawater. Background Technology
[0002] Hydrogen energy, as a clean energy source, has broad application prospects in the transportation sector and has become an important component of major national strategic needs. Seawater is an inexhaustible resource; if hydrogen can be directly produced from seawater and stored and transported safely and efficiently, it will provide a crucial guarantee for the continuous supply of hydrogen energy required for transportation equipment. Furthermore, the efficient conversion and utilization of hydrogen energy is another key aspect. Green methanol and green ammonia, as efficient hydrogen carriers, have already been used in transportation equipment such as ships and aircraft. Therefore, achieving key technologies for in-situ green hydrogen production, safe storage, transportation, and green chemical conversion from seawater will help promote the deep integration of transportation and energy, realize the full-chain development of marine green hydrogen production, storage, and utilization, and construct a new industrial model integrating marine green fuels and transportation. Summary of the Invention
[0003] The purpose of this invention is to provide a comprehensive energy ship system that integrates multiple renewable energy sources such as photovoltaic, wind power, and wave energy. It constructs a power platform at sea that integrates the production, storage, transportation, and utilization of "marine green hydrogen," forming an integrated energy production and conversion model of "green electricity, green hydrogen, and green ammonia and alcohol." This not only meets the shipping industry's demand for green fuels but also effectively solves the problem of renewable energy consumption, promoting the deep integration of transportation and energy.
[0004] The technical solution adopted in this invention is as follows: An integrated energy vessel, the Dongfang Heping, for direct seawater hydrogen production, storage, and conversion includes a power platform equipped with a wave energy system, a photovoltaic system, a wind power system, a seawater desalination direct electrolysis hydrogen production system, a green methanol synthesis system, a green ammonia synthesis system, and a power system. Among them, wave energy systems, photovoltaic systems and wind power systems are used to extract energy from the ocean and convert it into electricity to provide power for powered platforms, seawater desalination direct electrolysis hydrogen production systems, green methanol synthesis systems and green ammonia synthesis systems; The power system is used to drive the operation of the powered platform. The seawater desalination direct electrolysis hydrogen production system, the green methanol synthesis system, and the green ammonia synthesis system are electrically connected to the power system.
[0005] This invention utilizes wind power, photovoltaic power, and wave energy from the hull of a hydrogen-powered ship to directly produce hydrogen from seawater in the open ocean and capture CO2 directly from the air. Simultaneously, a portion of the produced hydrogen is combined with CO2 to synthesize negative-carbon green methanol and hydrogen nitrogen to synthesize green ammonia. This invention allows for the direct transport of "green hydrogen," "negative-carbon green methanol," and "green ammonia" across oceans.
[0006] The Dongfang Heping (Eastern Peace) seawater direct hydrogen production, storage, and conversion integrated energy vessel of this invention can directly utilize seawater for electrolytic hydrogen production without the need for an additional pretreatment module, preventing problems such as high-concentration brine backflow and additive pollution of seawater caused by traditional seawater desalination and purification processes. Furthermore, unlike other seawater direct hydrogen production methods, this system utilizes a "liquid-gas-liquid" phase change mass transfer process in seawater to induce water molecules to transfer in gaseous form, thereby completely isolating impurities in the seawater and avoiding toxicity and corrosiveness to the electrolysis system. More importantly, the seawater phase change mass transfer module in this system can be directly immersed in seawater, completely avoiding the seawater pumping and transportation process, the seawater desalination process, and the seawater pollution treatment process.
[0007] The Dongfang Heping (Eastern Peace) seawater direct hydrogen production, storage, and conversion integrated energy vessel of this invention can directly absorb low-concentration carbon dioxide from the air and release pure carbon dioxide gas through an electrochemical proton-coupled electron transfer process, thereby improving the efficiency of subsequent methanol synthesis. The obtained methanol is a type of green methanol.
[0008] As a preferred embodiment of the present invention, the power platform is further equipped with an intelligent control system for intelligent adjustment. The wave energy system, photovoltaic system, wind power system, seawater desalination direct electrolysis hydrogen production system, green methanol synthesis system, green ammonia synthesis system, and power system are all electrically connected to the intelligent control system. The intelligent control system is used to meet the requirements of comprehensive capacity ratio regulation and stable supply of renewable energy to achieve supply and demand balance. At the same time, it couples the various systems together for intelligent adjustment, ensuring the normal, stable, and efficient operation of the overall power platform.
[0009] As a preferred embodiment of the present invention, the power system includes a lithium battery power module, a hydrogen fuel power module, a methanol fuel power module, and an ammonia power module; wherein, the lithium battery power module drives the power platform to operate using electricity obtained from renewable energy sources, the hydrogen fuel power module uses hydrogen obtained from a direct electrolysis hydrogen production system without desalination to provide power, the methanol fuel power module uses methanol obtained from a green methanol synthesis system to provide power, and the ammonia power module uses ammonia obtained from a green ammonia synthesis system to provide power.
[0010] As a preferred embodiment of the present invention, the seawater desalination-free direct electrolysis hydrogen production system includes a power supply module, an electrolysis module, a seawater phase change mass transfer module, a gas-liquid separation module, a cooling module, and a gas purification module. The seawater phase change mass transfer module is crucial; it can be directly immersed in seawater to obtain pure water from seawater without additional energy consumption for hydrogen electrolysis. Therefore, this system can directly utilize seawater to obtain hydrogen through electrolysis without requiring additional pretreatment.
[0011] As a preferred embodiment of the present invention, the green methanol synthesis system includes an electrochemical air carbon dioxide capture module and a methanol synthesis module; the electrochemical air carbon dioxide capture module directly absorbs low-concentration carbon dioxide from the air and converts it into pure carbon dioxide gas, which enters the green methanol synthesis system and reacts with hydrogen obtained from the seawater desalination direct electrolysis hydrogen production system to produce green methanol.
[0012] As a preferred embodiment of the present invention, the green ammonia synthesis system includes an air separation module and an ammonia synthesis module; after the air separation module separates and obtains pure nitrogen from the air, it enters the green ammonia synthesis system and undergoes a synthesis reaction with hydrogen obtained from the direct electrolysis hydrogen production system without seawater desalination to produce green ammonia.
[0013] As a preferred embodiment of the present invention, the powered platform is equipped with an anchoring device or legs. The powered platform can be switched into a floating system or a fixed system by adding anchoring or fixing legs, thereby enabling it to be used immediately in the ocean and moved around as needed.
[0014] As a preferred embodiment of the present invention, an unmanned aerial vehicle (UAV) system is provided on the powered platform. The powered platform can also be equipped with an UAV system, utilizing hydrogen power to achieve low-altitude inspections, thereby increasing the functionality and practicality of the powered platform.
[0015] As a preferred embodiment of the present invention, the power platform is further equipped with a seawater evaporation system. This system utilizes the waste heat from the direct electrolysis hydrogen production system to evaporate pure water from seawater. This integrated power platform can utilize the waste heat from the direct electrolysis hydrogen production system to evaporate pure water from seawater, which can be used to match a PEM electrolyzer, thus providing more flexible response to fluctuating renewable energy sources, or allowing the pure water to be directly supplied to personnel on the power platform.
[0016] As a preferred embodiment of the present invention, the powered platform is equipped with an unmanned driving system, which enables intelligent operation and smart navigation. The powered platform can be switched to unmanned operation, thereby achieving intelligent operation and smart navigation, truly enabling it to transport green hydrogen, green ammonia, and green alcohol across the ocean.
[0017] The beneficial effects of this invention are as follows: 1. This invention utilizes wind power, photovoltaic power, and wave energy from the hull of a hydrogen fuel cell-powered ship to directly produce hydrogen from seawater in the open ocean and capture CO2 directly from the air. Simultaneously, a portion of the produced hydrogen is combined with CO2 to synthesize negative-carbon green methanol and hydrogen nitrogen to synthesize green ammonia. This invention enables the direct transport of "green hydrogen," "negative-carbon green methanol," and "green ammonia" across oceans.
[0018] 2. The Dongfang Heping (Eastern Peace) seawater direct hydrogen production, storage, and conversion integrated energy vessel of this invention can directly utilize seawater for electrolytic hydrogen production without the need for an additional pretreatment module, preventing problems such as high-concentration brine backflow and additive pollution of seawater caused by traditional seawater desalination and purification processes. Furthermore, unlike other seawater direct hydrogen production methods, this system uses a "liquid-gas-liquid" phase change mass transfer process to induce water molecules to transfer from seawater in the form of gaseous water, thereby completely isolating impurities in the seawater and avoiding toxicity and corrosiveness to the electrolysis system. More importantly, the seawater phase change mass transfer module in this system can be directly immersed in seawater, completely avoiding the seawater pumping and transportation process, the seawater desalination process, and the seawater pollution treatment process.
[0019] 3. The Dongfang Heping seawater direct hydrogen production, storage and conversion integrated energy vessel of the present invention can directly absorb low concentration carbon dioxide from the air and release pure carbon dioxide gas through an electrochemical proton coupling electron transfer process, thereby improving the efficiency of subsequent methanol synthesis; the obtained methanol is a green methanol.
[0020] 4. In this invention, the direct electrolysis of seawater without desalination to produce hydrogen and the electrochemical capture of carbon dioxide are both original technologies. The integrated system formed by the integration of multiple original technologies truly realizes the closed-loop operation of the power platform driven by renewable energy, with no additional pollution emissions. It is a completely green and sustainable integrated energy power platform system. Attached Figure Description
[0021] Figure 1 This is a schematic diagram of the structure of the present invention.
[0022] In the diagram: 1-Wave energy system; 2-Photovoltaic system; 3-Wind power system; 4-Seawater desalination direct electrolysis hydrogen production system; 5-Green methanol synthesis system; 6-Green ammonia synthesis system; 7-Power system; 8-Intelligent control system. Detailed Implementation
[0023] 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 embodiments of the present invention, and not all embodiments. 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.
[0024] Therefore, the following detailed description of the embodiments of the 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 invention without inventive effort are within the scope of protection of the invention. It should be noted that, unless otherwise specified, the embodiments and features described in the embodiments of the invention can be combined with each other.
[0025] like Figure 1 As shown, the Dongfang Heping, a comprehensive energy vessel for direct seawater hydrogen production, storage and conversion in this embodiment, includes a power platform. The power platform is equipped with a wave energy system 1, a photovoltaic system 2, a wind power system 3, a seawater desalination direct electrolysis hydrogen production system 4, a green methanol synthesis system 5, a green ammonia synthesis system 6, and a power system 7. Among them, wave energy system 1, photovoltaic system 2 and wind power system 3 are used to obtain energy from the ocean and convert it into electricity to provide power to the powered platform, seawater desalination direct electrolysis hydrogen production system 4, green methanol synthesis system 5 and green ammonia synthesis system 6. The power system 7 is used to drive the operation of the power platform. The seawater desalination direct electrolysis hydrogen production system 4, the green methanol synthesis system 5, and the green ammonia synthesis system 6 are electrically connected to the power system 7.
[0026] The power platform is also equipped with an intelligent control system 8 for intelligent regulation. Wave energy system 1, photovoltaic system 2, wind power system 3, seawater desalination direct electrolysis hydrogen production system 4, green methanol synthesis system 5, green ammonia synthesis system 6, and power system 7 are all electrically connected to the intelligent control system 8. The intelligent control system 8 is used to meet the requirements of comprehensive renewable energy capacity ratio regulation and stable supply to achieve supply and demand balance. Simultaneously, it couples each system together for intelligent regulation, ensuring the normal, stable, and efficient operation of the overall power platform.
[0027] This invention utilizes wind power, photovoltaic power, and wave energy from the hull of a hydrogen-powered ship to directly produce hydrogen from seawater in the open ocean and capture CO2 directly from the air. Simultaneously, a portion of the produced hydrogen is combined with CO2 to synthesize negative-carbon green methanol and hydrogen nitrogen to synthesize green ammonia. This invention allows for the direct transport of "green hydrogen," "negative-carbon green methanol," and "green ammonia" across oceans.
[0028] The integrated energy ship system of this invention can directly produce hydrogen through seawater electrolysis without the need for an additional pretreatment module, preventing problems such as high-concentration brine backflow and additive pollution of seawater caused by traditional seawater desalination and purification processes. Furthermore, unlike other direct seawater hydrogen production methods, this system utilizes a "liquid-gas-liquid" phase change mass transfer process to induce water molecules to transfer from seawater in gaseous form, thus completely isolating impurities in the seawater and avoiding toxicity and corrosiveness to the electrolysis system. More importantly, the seawater phase change mass transfer module in this system can be directly immersed in seawater, completely eliminating the need for seawater pumping and transportation, seawater desalination, and seawater pollution treatment.
[0029] The integrated energy ship system of this invention can directly absorb low-concentration carbon dioxide from the air and release pure carbon dioxide gas through an electrochemical proton-coupled electron transfer process, thereby improving the efficiency of subsequent methanol synthesis. The obtained methanol is a green methanol.
[0030] Specifically, the power system 7 includes a lithium battery power module, a hydrogen fuel power module, a methanol fuel power module, and an ammonia power module; wherein, the lithium battery power module drives the power platform to operate using electricity obtained from renewable energy, the hydrogen fuel power module is used to provide power by using hydrogen obtained from the seawater desalination direct electrolysis hydrogen production system 4, the methanol fuel power module is used to provide power by using methanol obtained from the green methanol synthesis system 5, and the ammonia power module is used to provide power by using ammonia obtained from the green ammonia synthesis system 6.
[0031] Specifically, the seawater desalination-free direct electrolysis hydrogen production system 4 includes a power supply module, an electrolysis module, a seawater phase change mass transfer module, a gas-liquid separation module, a cooling module, and a gas purification module. Among these, the seawater phase change mass transfer module is crucial; it can be directly immersed in seawater to obtain pure water from seawater without additional energy consumption for hydrogen electrolysis. Therefore, this system can directly utilize seawater to obtain hydrogen through electrolysis without requiring any additional pretreatment.
[0032] Specifically, the green methanol synthesis system 5 includes an electrochemical air carbon dioxide capture module and a methanol synthesis module; the electrochemical air carbon dioxide capture module directly absorbs low-concentration carbon dioxide from the air and converts it into pure carbon dioxide gas, which enters the green methanol synthesis system 5 and reacts with hydrogen obtained from the seawater desalination direct electrolysis hydrogen production system 4 to produce green methanol.
[0033] Specifically, the green ammonia synthesis system 6 includes an air separation module and an ammonia synthesis module. After the air separation module separates and obtains pure nitrogen from the air, it enters the green ammonia synthesis system 6 and undergoes a synthesis reaction with hydrogen obtained from the seawater desalination direct electrolysis hydrogen production system 4 to produce green ammonia.
[0034] Furthermore, the powered platform is equipped with anchoring devices or legs. The powered platform can be switched between a floating system and a fixed system by adding anchoring or leg fixation, thus enabling it to be used immediately and moved around at any time in the ocean.
[0035] The powered platform is equipped with an unmanned aerial vehicle (UAV) system. An additional UAV system can be added to the powered platform, utilizing hydrogen power to achieve low-altitude inspections, thereby increasing the functionality and practicality of the powered platform.
[0036] The power platform is also equipped with a seawater evaporation system, which utilizes the waste heat from the direct electrolysis hydrogen production system 4 to evaporate pure water from seawater. This integrated power platform can utilize the waste heat from the direct electrolysis hydrogen production system to evaporate pure water from seawater, which can be used to match the PEM electrolyzer, thereby responding more flexibly to fluctuating renewable energy sources, or the pure water can be used directly for personnel on the power platform.
[0037] The powered platform is equipped with an unmanned driving system, which enables intelligent operation and smart navigation. This powered platform can be switched to unmanned mode, thus achieving intelligent operation and smart navigation, truly enabling it to transport green hydrogen, green ammonia, and green alcohol across the ocean.
[0038] This invention is not limited to the above-described optional embodiments. Anyone can derive other various forms of products under the guidance of this invention. However, regardless of any changes made in their shape or structure, any technical solution that falls within the scope of the claims of this invention shall be protected by this invention.
Claims
1. A comprehensive energy vessel, the "Dongfang Heping" (Eastern Peace), for direct seawater hydrogen production, storage, and conversion, characterized in that: It includes a power platform, which is equipped with a wave energy system (1), a photovoltaic system (2), a wind power system (3), a seawater desalination direct electrolysis hydrogen production system (4), a green methanol synthesis system (5), a green ammonia synthesis system (6), and a power system (7). Among them, the wave energy system (1), photovoltaic system (2) and wind power system (3) are used to obtain energy from the ocean and convert it into electricity to provide power to the powered platform, the seawater desalination direct electrolysis hydrogen production system (4), the green methanol synthesis system (5) and the green ammonia synthesis system (6); The power system (7) is used to drive the operation of the power platform. The seawater desalination direct electrolysis hydrogen production system (4), the green methanol synthesis system (5) and the green ammonia synthesis system (6) are electrically connected to the power system (7).
2. The integrated energy vessel "Dongfang Heping" for direct seawater hydrogen production, storage, and conversion as described in claim 1, characterized in that: The power platform is also equipped with an intelligent control system (8) for intelligent adjustment. The wave energy system (1), photovoltaic system (2), wind power system (3), seawater desalination direct electrolysis hydrogen production system (4), green methanol synthesis system (5), green ammonia synthesis system (6) and power system (7) are electrically connected to the intelligent control system (8).
3. The integrated energy vessel "Dongfang Heping" for direct seawater hydrogen production, storage, and conversion as described in claim 1, characterized in that: The power system (7) includes a lithium battery power module, a hydrogen fuel power module, a methanol fuel power module and an ammonia power module; wherein, the lithium battery power module drives the power platform to operate by electricity obtained from renewable energy, the hydrogen fuel power module is used to provide power by hydrogen obtained from the seawater desalination direct electrolysis hydrogen production system (4), the methanol fuel power module is used to provide power by methanol obtained from the green methanol synthesis system (5), and the ammonia power module is used to provide power by ammonia obtained from the green ammonia synthesis system (6).
4. The integrated energy vessel for direct seawater hydrogen production, storage, and conversion, as described in claim 1, is characterized in that: The seawater desalination-free direct electrolysis hydrogen production system (4) includes a power supply module, an electrolysis module, a seawater phase change mass transfer module, a gas-liquid separation module, a cooling module, and a gas purification module; wherein, the seawater phase change mass transfer module is directly immersed in seawater and is used to obtain pure water from seawater without additional energy consumption for electrolysis hydrogen production.
5. The integrated energy vessel for direct seawater hydrogen production, storage, and conversion, as described in claim 1, is characterized in that: The green methanol synthesis system (5) includes an electrochemical air carbon dioxide capture module and a methanol synthesis module. The electrochemical air carbon dioxide capture module directly absorbs low-concentration carbon dioxide from the air and converts it into pure carbon dioxide gas, which enters the green methanol synthesis system (5) and reacts with hydrogen obtained from the seawater desalination direct electrolysis hydrogen production system (4) to produce green methanol.
6. The integrated energy vessel "Dongfang Heping" for direct seawater hydrogen production, storage, and conversion according to claim 1, characterized in that: The green ammonia synthesis system (6) includes an air separation module and an ammonia synthesis module. After the air separation module separates and obtains pure nitrogen from the air, it enters the green ammonia synthesis system (6) and reacts with the hydrogen obtained from the direct electrolysis hydrogen production system (4) to produce green ammonia.
7. The integrated energy vessel for direct seawater hydrogen production, storage, and conversion, as described in claim 1, is characterized in that: The powered platform is equipped with an anchoring device or pile legs.
8. The integrated energy vessel "Dongfang Heping" for direct seawater hydrogen production, storage, and conversion according to claim 1, characterized in that: The powered platform is equipped with an unmanned aerial vehicle (UAV) system.
9. The integrated energy vessel "Dongfang Heping" for direct seawater hydrogen production, storage, and conversion according to claim 1, characterized in that: The power platform is also equipped with a seawater evaporation system, which uses the waste heat from the seawater desalination direct electrolysis hydrogen production system (4) to evaporate pure water from seawater.
10. The integrated energy vessel "Dongfang Heping" for direct seawater hydrogen production, storage, and conversion, as described in any one of claims 1 to 9, is characterized in that: The powered platform is equipped with an unmanned driving system, which enables intelligent operation and smart cruise.