CN111270257A - Offshore wind power hydrogen production system and method based on electro-adsorption desalination technology - Google Patents

Offshore wind power hydrogen production system and method based on electro-adsorption desalination technology Download PDF

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Publication number
CN111270257A
CN111270257A CN202010239447.XA CN202010239447A CN111270257A CN 111270257 A CN111270257 A CN 111270257A CN 202010239447 A CN202010239447 A CN 202010239447A CN 111270257 A CN111270257 A CN 111270257A
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hydrogen production
storage tank
wind power
offshore wind
electrolytic
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任志博
余智勇
张畅
郜时旺
刘练波
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Huaneng Clean Energy Research Institute
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Huaneng Clean Energy Research Institute
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Priority to CN202010239447.XA priority Critical patent/CN111270257A/en
Publication of CN111270257A publication Critical patent/CN111270257A/en
Priority to DE202021004131.1U priority patent/DE202021004131U1/en
Priority to PCT/CN2021/083894 priority patent/WO2021197308A1/en
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    • C25B1/00—Electrolytic production of inorganic compounds or non-metals
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    • C25B9/00—Cells or assemblies of cells; Constructional parts of cells; Assemblies of constructional parts, e.g. electrode-diaphragm assemblies; Process-related cell features
    • C25B9/60—Constructional parts of cells
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
    • F03D—WIND MOTORS
    • F03D9/00—Adaptations of wind motors for special use; Combinations of wind motors with apparatus driven thereby; Wind motors specially adapted for installation in particular locations
    • F03D9/10—Combinations of wind motors with apparatus storing energy
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    • C02F1/46—Treatment of water, waste water, or sewage by electrochemical methods
    • C02F1/461—Treatment of water, waste water, or sewage by electrochemical methods by electrolysis
    • C02F1/46104—Devices therefor; Their operating or servicing
    • C02F1/46109—Electrodes
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    • C02F1/46—Treatment of water, waste water, or sewage by electrochemical methods
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    • C02F2103/08—Seawater, e.g. for desalination
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    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2201/00—Apparatus for treatment of water, waste water or sewage
    • C02F2201/009—Apparatus with independent power supply, e.g. solar cells, windpower, fuel cells
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2201/00—Apparatus for treatment of water, waste water or sewage
    • C02F2201/46—Apparatus for electrochemical processes
    • C02F2201/461—Electrolysis apparatus
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    • C25B—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES FOR THE PRODUCTION OF COMPOUNDS OR NON-METALS; APPARATUS THEREFOR
    • C25B9/00—Cells or assemblies of cells; Constructional parts of cells; Assemblies of constructional parts, e.g. electrode-diaphragm assemblies; Process-related cell features
    • C25B9/17—Cells comprising dimensionally-stable non-movable electrodes; Assemblies of constructional parts thereof
    • C25B9/19—Cells comprising dimensionally-stable non-movable electrodes; Assemblies of constructional parts thereof with diaphragms
    • C25B9/23—Cells comprising dimensionally-stable non-movable electrodes; Assemblies of constructional parts thereof with diaphragms comprising ion-exchange membranes in or on which electrode material is embedded
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05B—INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
    • F05B2220/00—Application
    • F05B2220/61—Application for hydrogen and/or oxygen production
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05B—INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
    • F05B2240/00—Components
    • F05B2240/90—Mounting on supporting structures or systems
    • F05B2240/95—Mounting on supporting structures or systems offshore
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/30—Hydrogen technology
    • Y02E60/36—Hydrogen production from non-carbon containing sources, e.g. by water electrolysis
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P20/00—Technologies relating to chemical industry
    • Y02P20/10—Process efficiency
    • Y02P20/133—Renewable energy sources, e.g. sunlight

Abstract

The invention discloses an offshore wind power hydrogen production system and method based on electro-adsorption desalination technology, wherein the output end of an offshore wind power plant is connected with the input end of a power distributor, the output end of the power distributor is connected with a power grid and the input end of an AC/DC rectifier, the output end of the AC/DC rectifier is connected with a power interface of an electrolytic hydrogen production device, a hydrogen outlet of the electrolytic hydrogen production device is communicated with a hydrogen storage system, an oxygen outlet of the electrolytic hydrogen production device is communicated with an inlet of an oxygen separator, an oxygen outlet of the oxygen separator is communicated with an oxygen storage tank, a water outlet of the oxygen separator is communicated with an inlet of a drainage storage tank, an outlet of the drainage storage tank and a seawater input pipeline are communicated with an inlet of the electro-adsorption desalination device, an outlet of the electro-adsorption desalination device is communicated with an inlet of a water replenishing storage tank, the system and the method can combine seawater desalination and electrolytic hydrogen production to realize offshore and on-site consumption of renewable wind power.

Description

Offshore wind power hydrogen production system and method based on electro-adsorption desalination technology
Technical Field
The invention belongs to the field of hydrogen energy, and relates to an offshore wind power hydrogen production system and method based on an electro-adsorption desalination technology.
Background
With the increasing problems of climate change and global warming, countries in the world begin to actively reduce carbon emission, reduce the use ratio of fossil energy, and develop clean and renewable energy. China also speeds up the step of energy structure transformation, and in recent years, renewable energy power generation mainly based on wind power and photovoltaic is developed rapidly. As the land high-quality wind power plants are reduced day by day, the offshore wind power development in China gradually enters an acceleration period. However, the back of the rapid development is accompanied by the same embarrassment faced by offshore wind power industry of each country, and the delayed power grid construction speed cannot meet the rapidly expanded power delivery requirement, so that the phenomena of large-scale wind abandonment and electricity abandonment can be caused finally. The difficult problems can be effectively solved by changing the single application mode of the outgoing grid connection and directly coupling the offshore wind power and the high-energy-carrying industry and combining the grid connection with the energy storage. Among them, hydrogen energy has the characteristics of cleanness and high efficiency, and is considered as the most potential energy carrier in the future. The hydrogen production by the offshore wind power can absorb the abandoned wind and the abandoned electricity on site, balance the power supply and demand relationship in the power grid and provide a feasible idea for the development of the offshore wind power.
The current commercial hydrogen production technology comprises alkaline water electrolysis hydrogen production and proton exchange membrane water electrolysis hydrogen production, and the two technologies both need to use pure water as an electrolysis raw material. Offshore wind farms lack a supply of pure water, limiting the application of electrolytic hydrogen production technology. Desalination of sea water by reverse osmosis, electrodialysis, etc. enables the on-site production of pure water, but it is expensiveThe equipment investment and the complex process flow can greatly increase the hydrogen production cost and weaken the economic benefit of hydrogen energy storage. The technology for producing hydrogen by directly electrolyzing seawater can effectively avoid the problem of pure water supply, but the seawater contains high-concentration Cl-、Mg2+、Ca2+Can lead to serious hydrogen plant corrosion and efficiency degradation problems. The electric adsorption technology can adsorb and separate ions in seawater under the action of an electric field force, so that product water with lower concentration is obtained. The treatment process has almost no requirement on the quality of raw water, the stability of the circular operation is good, and the low-energy consumption seawater desalination can be realized under the condition of applying lower external voltage. The diluted seawater desalted by electro-adsorption is used as the raw material for producing hydrogen by electrolysis, so that the technical problem of producing hydrogen by directly electrolyzing seawater can be effectively solved.
At present, the wind power hydrogen production technology is mainly used for abandoned wind absorption of onshore wind power plants and is limited by the problem of pure water supply, and the hydrogen production technology aiming at hydrogen energy storage of offshore wind power plants is not reported so far. Therefore, there is a need in the art to develop a system and method for offshore wind power hydrogen production based on electro-adsorption desalination technology, which combines seawater desalination and electrolytic hydrogen production to realize offshore and on-site consumption of renewable wind power.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provides a system and a method for preparing hydrogen by offshore wind power based on an electro-adsorption desalination technology, which can combine seawater desalination and electrolytic hydrogen preparation to realize offshore and on-site consumption of renewable wind power.
In order to achieve the purpose, the offshore wind power hydrogen production system based on the electro-adsorption desalination technology comprises an offshore wind power plant, a power distributor, a power grid, an AC/DC rectifier, an electrolytic hydrogen production device, a hydrogen separator, a hydrogen storage tank, an oxygen separator, an oxygen storage tank, a drainage storage tank, a seawater input pipeline, an electro-adsorption desalination device and a water replenishing storage tank;
the output end of the offshore wind power generation field is connected with the input end of the power distributor, the output end of the power distributor is connected with the power grid and the input end of the AC/DC rectifier, the output end of the AC/DC rectifier is connected with the power supply interface of the electrolytic hydrogen production device, the hydrogen outlet of the electrolytic hydrogen production device is communicated with the hydrogen storage tank through the hydrogen separator, the oxygen outlet of the electrolytic hydrogen production device is communicated with the inlet of the oxygen separator, the oxygen outlet of the oxygen separator is communicated with the oxygen storage tank, the water outlet of the oxygen separator is communicated with the inlet of the drainage storage tank, the outlet of the drainage storage tank and the seawater input pipeline are communicated with the inlet of the electro-adsorption desalination device, the outlet of the electro-adsorption desalination device is communicated with the inlet of the water replenishing storage.
The electrolytic hydrogen production device further comprises a cooler and a circulating pump, wherein an inlet of the circulating pump is communicated with a water outlet of the oxygen separator, and an outlet of the circulating pump is communicated with a water inlet of the electrolytic hydrogen production device through the cooler.
The electrolytic hydrogen production device is an anion exchange membrane electrolytic cell, and a diaphragm in the electrolytic hydrogen production device is OH containing quaternary ammonium, imidazole or pyridine-A selective exchange membrane; the anode and the cathode in the electrolytic hydrogen production device take a titanium mesh, a titanium corrugated plate, foamed nickel or foamed copper as a substrate, and an active coating is introduced on the surface of the substrate; the cathode, the diaphragm and the anode are in close contact to form a zero-spacing electrolytic cell structure.
The electrode in the electro-adsorption desalting device is in a plate shape or a felt shape, polytetrafluoroethylene mesh cloth is paved on the surface of the electrode, and the material of the electrode is one or a plurality of active carbon, carbon fiber and carbon nano tube.
The invention relates to an offshore wind power hydrogen production method based on an electro-adsorption desalination technology, which comprises the following steps:
the offshore wind power generation field generates power in real time, when the electric quantity generated by the offshore wind power generation field is less than or equal to the dispatching electric quantity of the power grid, the electricity output by the offshore wind power generation field is completely transmitted to the power grid through the power distributor, when the electric quantity generated by the offshore wind power generation field is greater than the dispatching electric quantity of the power grid, the electricity generated by the offshore wind power generation field is transmitted to the electrolytic hydrogen production device through the power distributor and the AC/DC rectifier on the premise of meeting the dispatching of the power grid, the electrolytic hydrogen production device electrolyzes water to generate hydrogen and oxygen, wherein the hydrogen enters the hydrogen storage system to be stored, the hydrogen enters the hydrogen separator to be separated, the separated oxygen enters the oxygen storage tank, the separated water enters the drainage storage tank, the seawater output by the seawater input pipeline and the water output by the drainage storage tank converge and then enter the electrolytic hydrogen production device to be subjected to electrolytic desalination, the diluted seawater after the electrolytic desalination treatment enters a water replenishing storage tank, and the diluted seawater output by the water replenishing storage tank enters an electrolytic hydrogen production device.
The invention has the following beneficial effects:
during specific operation, on the premise that the electric quantity generated by the offshore wind power generation field meets power grid dispatching, the redundant electricity is transmitted to the electrolytic hydrogen production device through the AC/DC rectifier, hydrogen and oxygen are generated by electrolyzing water through the electrolytic hydrogen production device, offshore and on-site consumption of renewable wind power is realized, and the problems of wind abandonment and consumption of electricity abandonment of an offshore wind power plant are solved. In addition, the seawater output by the seawater input pipeline enters the electrolytic hydrogen production device for electrolytic desalination treatment, and the diluted seawater after electrolytic desalination treatment enters the electrolytic hydrogen production device, so that the combination of seawater desalination and electrolytic hydrogen production is realized, the dependence of the traditional electrolytic hydrogen production on pure water is avoided, the investment of a seawater desalination part in the traditional hydrogen production process is saved, and the fixed investment of offshore wind power hydrogen production projects is greatly reduced. In addition, the invention adopts the electro-adsorption desalination technology to reduce Cl in seawater in the hydrogen production system-The concentration is favorable for inhibiting the corrosion of the catalyst and the polar plate, the service life of the hydrogen production system is prolonged, and simultaneously, the Ca in the seawater is effectively removed2+And Mg2+And hardness ions are prevented from being deposited on the surface of the electrode, and the energy consumption and the cost of hydrogen production can be obviously reduced.
Drawings
Fig. 1 is a schematic diagram of the present invention.
Wherein, 1 is an offshore wind power plant, 2 is a power distributor, 3 is a power grid, 4 is an AC/DC rectifier, 5 is an electrolytic hydrogen production device, 6 is a hydrogen separator, 7 is a hydrogen storage tank, 8 is an oxygen separator, 9 is an oxygen storage tank, 10 is a circulating pump, 11 is a cooler, 12 is a drainage storage tank, 13 is an electro-adsorption desalination device, and 14 is a water replenishing storage tank.
Detailed Description
The invention is described in further detail below with reference to the accompanying drawings:
referring to fig. 1, the offshore wind power hydrogen production system based on the electro-adsorption desalination technology comprises an offshore wind power plant 1, a power distributor 2, a power grid 3, an AC/DC rectifier 4, an electrolytic hydrogen production device 5, a hydrogen separator 6, a hydrogen storage tank 7, an oxygen separator 8, an oxygen storage tank 9, a drainage storage tank 12, a seawater input pipeline, an electro-adsorption desalination device 13 and a water replenishing storage tank 14; the output end of the offshore wind power generation field 1 is connected with the input end of the power distributor 2, the output end of the power distributor 2 is connected with the power grid 3 and the input end of the AC/DC rectifier 4, the output end of the AC/DC rectifier 4 is connected with the power supply interface of the electrolytic hydrogen production device 5, the hydrogen outlet of the electrolytic hydrogen production device 5 is communicated with the hydrogen storage tank 7 through the hydrogen separator 6, the oxygen outlet of the electrolytic hydrogen production device 5 is communicated with the inlet of the oxygen separator 8, the oxygen outlet of the oxygen separator 8 is communicated with the oxygen storage tank 9, the water outlet of the oxygen separator 8 is communicated with the inlet of the drainage storage tank 12, the outlet of the drainage storage tank 12 and a seawater input pipeline are communicated with the inlet of the electro-adsorption desalination device 13, the outlet of the electro-adsorption desalination device 13 is communicated with the inlet of the water replenishing storage tank 14.
The invention also comprises a cooler 11 and a circulating pump 10, wherein the inlet of the circulating pump 10 is communicated with the water outlet of the oxygen separator 8, and the outlet of the circulating pump 10 is communicated with the water inlet of the electrolytic hydrogen production device 5 through the cooler 11.
The invention relates to an offshore wind power hydrogen production method based on an electro-adsorption desalination technology, which comprises the following steps:
the offshore wind power generation field 1 generates power in real time, when the electric quantity generated by the offshore wind power generation field 1 is less than or equal to the scheduled electric quantity of the power grid 3, the electricity output by the offshore wind power generation field 1 is completely transmitted to the power grid 3 through the power divider 2, when the electric quantity generated by the offshore wind power generation field 1 is greater than the scheduled electric quantity of the power grid 3, the electricity generated by the offshore wind power generation field 1 is transmitted to the electrolytic hydrogen production device 5 through the power divider 2 and the AC/DC rectifier 4 on the premise of meeting the scheduling of the power grid 3, the electrolytic hydrogen production device 5 electrolyzes water to generate hydrogen and oxygen, wherein the hydrogen enters the hydrogen storage system for storage, the hydrogen enters the hydrogen separator 6 for separation, the separated oxygen enters the oxygen storage tank 9, the separated hydrogen production water enters the drainage storage tank 12, the seawater output by the seawater input pipeline and the water output by the drainage storage tank 12 converge and then enters the electrolytic desalination device 5, the diluted seawater after the electrolytic desalination enters the water replenishing storage tank 14, and the diluted seawater output by the water replenishing storage tank 14 enters the electrolytic hydrogen production device 5.
The electro-adsorption desalination device 13 carries out desalination treatment on seawater, the obtained diluted seawater is stored in a water supplementing storage tank 14 and is used as a raw material water source of the electrolytic hydrogen production device 5, the system automatically controls the seawater supplementing amount and the discharge amount according to the conductivity of the circulating seawater, when the conductivity of the circulating seawater passing through the electrolytic cell is higher than a set value, the system starts to discharge water to a water discharging storage tank 12, and then the diluted seawater is supplemented into the system from the water supplementing storage tank 14; and when the conductivity of the circulating seawater passing through the electrolytic cell is lower than a set value, stopping supplementing water.
The electrolytic hydrogen production device 5 is an anion exchange membrane electrolytic cell, and a diaphragm in the electrolytic hydrogen production device 5 is OH containing quaternary ammonium, imidazole and pyridine-A selective exchange membrane; the anode and the cathode in the electrolytic hydrogen production device 5 take a titanium mesh, a titanium corrugated plate, foamed nickel or foamed copper as a substrate, and an active coating is introduced on the surface; the cathode, the diaphragm and the anode are in close contact to form a zero-spacing electrolytic cell structure.
The electrodes in the electro-adsorption desalination device 13 are plate-shaped or felt-shaped, polytetrafluoroethylene mesh cloth is laid on the surfaces of the electrodes, and the electrodes are made of one or a plurality of active carbon, carbon fiber and carbon nano tubes. The polytetrafluoroethylene mesh cloth is laid on the surface of the electrode, the turbulence degree of seawater is increased, the ions are promoted to be gathered in double electric layers on the surface of the electrode, the seawater flows between the negative plate and the positive plate, and Cl is formed-Is gathered on the surface of the anode under the action of an electric field, Na+、Mg2+And Ca2+Gather on the cathode surface to realize seawater desalination and obtain diluted seawater with significantly reduced ion concentration and conductivityCl in water-The concentration is reduced, which is beneficial to the corrosion prevention of the electrolytic bath; mg (magnesium)2+、Ca2+The concentration is reduced, which is beneficial to inhibiting the generation of the sediment on the surface of the electrode and improving the electrolysis efficiency.
The electro-adsorption desalination device 13 has two operating states during operation: namely adsorption desalination and desorption pollution discharge; when the removal rate is higher than a set value, the device keeps the working state of adsorption desalination; when the removal rate is lower than a set value, stopping supplying power to the electrode, and performing desorption and pollution discharge; the desorption pollution discharge time is a fixed value, the polar plate is continuously electrified after the pollution discharge is finished, and the electro-adsorption desalination device 13 is recovered to the working state of adsorption desalination.

Claims (5)

1. An offshore wind power hydrogen production system based on an electro-adsorption desalination technology is characterized by comprising an offshore wind power plant (1), a power distributor (2), a power grid (3), an AC/DC rectifier (4), an electrolytic hydrogen production device (5), a hydrogen separator (6), a hydrogen storage tank (7), an oxygen separator (8), an oxygen storage tank (9), a drainage storage tank (12), a seawater input pipeline, an electro-adsorption desalination device (13) and a water replenishing storage tank (14);
the output end of the offshore wind power generation field (1) is connected with the input end of a power distributor (2), the output end of the power distributor (2) is connected with the input ends of a power grid (3) and an AC/DC rectifier (4), the output end of the AC/DC rectifier (4) is connected with a power interface of an electrolytic hydrogen production device (5), a hydrogen outlet of the electrolytic hydrogen production device (5) is communicated with a hydrogen storage tank (7) through a hydrogen separator (6), an oxygen outlet of the electrolytic hydrogen production device (5) is communicated with an inlet of an oxygen separator (8), an oxygen outlet of the oxygen separator (8) is communicated with an oxygen storage tank (9), a water outlet of the oxygen separator (8) is communicated with an inlet of a drainage storage tank (12), an outlet of the drainage storage tank (12) and a seawater input pipeline are communicated with an inlet of an electro-adsorption desalination device (13), an outlet of the electro-adsorption desalination device (13) is communicated with an inlet of a water replenishing, the outlet of the water replenishing storage tank (14) is communicated with the inlet of the electrolytic hydrogen production device (5).
2. Offshore wind power hydrogen production system based on electro-adsorption desalination technology according to claim 1, characterized by further comprising a cooler (11) and a circulation pump (10), wherein the inlet of the circulation pump (10) is communicated with the water outlet of the oxygen separator (8), and the outlet of the circulation pump (10) is communicated with the water inlet of the electrolytic hydrogen production device (5) via the cooler (11).
3. Offshore wind power hydrogen production system based on electro-adsorption desalination technology according to claim 1, characterized in that the hydrogen production device (5) is an anion exchange membrane electrolyzer, and the membrane in the hydrogen production device (5) is OH containing quaternary ammonium, imidazole or pyridine-A selective exchange membrane; the anode and the cathode in the electrolytic hydrogen production device (5) take a titanium mesh, a titanium corrugated plate, foamed nickel or foamed copper as a substrate, and an active coating is introduced on the surface; the cathode, the diaphragm and the anode are in close contact to form a zero-spacing electrolytic cell structure.
4. Offshore wind power hydrogen production system based on electro-adsorption desalination technology according to claim 1, characterized in that the electrodes in the electro-adsorption desalination device (13) are plate-shaped or felt-shaped, the surface of the electrodes is coated with polytetrafluoroethylene mesh cloth, and the electrodes are made of one or more of activated carbon, carbon fiber and carbon nanotubes.
5. An offshore wind power hydrogen production method based on an electro-adsorption desalination technology is characterized by comprising the following steps:
the offshore wind power generation field (1) generates power in real time, when the electric quantity generated by the offshore wind power generation field (1) is less than or equal to the dispatching electric quantity of the power grid (3), the electricity output by the offshore wind power generation field (1) is completely transmitted to the power grid (3) through the power distributor (2), when the electric quantity generated by the offshore wind power generation field (1) is greater than the dispatching electric quantity of the power grid (3), the electricity generated by the offshore wind power generation field (1) is transmitted to the electrolytic hydrogen production device (5) through the power distributor (2) and the AC/DC rectifier (4) on the premise of meeting the dispatching of the power grid (3), the electrolytic hydrogen production device (5) electrolyzes water to generate hydrogen and oxygen, wherein the hydrogen enters the hydrogen storage system to be stored, the hydrogen enters the hydrogen separator (6) to be separated, and the separated oxygen enters the oxygen storage tank (9), the separated water enters a drainage storage tank (12), the seawater output by a seawater input pipeline and the water output by the drainage storage tank (12) converge and then enter an electrolytic hydrogen production device (5) for electrolytic desalination treatment, the diluted seawater after the electrolytic desalination treatment enters a water replenishing storage tank (14), and the diluted seawater output by the water replenishing storage tank (14) enters the electrolytic hydrogen production device (5).
CN202010239447.XA 2020-03-30 2020-03-30 Offshore wind power hydrogen production system and method based on electro-adsorption desalination technology Pending CN111270257A (en)

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DE202021004131.1U DE202021004131U1 (en) 2020-03-30 2021-03-30 Hydrogen generation system based on electro-adsorption desalination technology using wind power at sea
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