CN114855189B - Renewable energy hydrogen production system - Google Patents
Renewable energy hydrogen production system Download PDFInfo
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- CN114855189B CN114855189B CN202210415855.5A CN202210415855A CN114855189B CN 114855189 B CN114855189 B CN 114855189B CN 202210415855 A CN202210415855 A CN 202210415855A CN 114855189 B CN114855189 B CN 114855189B
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- 239000001257 hydrogen Substances 0.000 title claims abstract description 87
- 229910052739 hydrogen Inorganic materials 0.000 title claims abstract description 87
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 title claims abstract description 78
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 45
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 39
- 238000005338 heat storage Methods 0.000 claims abstract description 22
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims abstract description 10
- 239000001301 oxygen Substances 0.000 claims abstract description 10
- 229910052760 oxygen Inorganic materials 0.000 claims abstract description 10
- 239000002245 particle Substances 0.000 claims description 39
- 238000009792 diffusion process Methods 0.000 claims description 23
- 239000012528 membrane Substances 0.000 claims description 21
- 238000012216 screening Methods 0.000 claims description 6
- 238000007789 sealing Methods 0.000 claims description 6
- 238000004891 communication Methods 0.000 claims description 5
- 230000005611 electricity Effects 0.000 abstract description 21
- 125000004430 oxygen atom Chemical group O* 0.000 abstract description 7
- 239000002994 raw material Substances 0.000 abstract 1
- 238000005868 electrolysis reaction Methods 0.000 description 13
- -1 hydrogen ions Chemical class 0.000 description 11
- 230000005684 electric field Effects 0.000 description 8
- 238000005516 engineering process Methods 0.000 description 6
- 238000011161 development Methods 0.000 description 5
- 239000003574 free electron Substances 0.000 description 5
- 230000010355 oscillation Effects 0.000 description 4
- 230000001105 regulatory effect Effects 0.000 description 4
- 238000005265 energy consumption Methods 0.000 description 3
- MYMOFIZGZYHOMD-UHFFFAOYSA-N Dioxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 description 2
- 229910018487 Ni—Cr Inorganic materials 0.000 description 2
- 239000003011 anion exchange membrane Substances 0.000 description 2
- VNNRSPGTAMTISX-UHFFFAOYSA-N chromium nickel Chemical compound [Cr].[Ni] VNNRSPGTAMTISX-UHFFFAOYSA-N 0.000 description 2
- 230000009977 dual effect Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000002035 prolonged effect Effects 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 239000003054 catalyst Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000004146 energy storage Methods 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 239000000284 extract Substances 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- GPRLSGONYQIRFK-UHFFFAOYSA-N hydron Chemical compound [H+] GPRLSGONYQIRFK-UHFFFAOYSA-N 0.000 description 1
- 230000004807 localization Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
- 238000011897 real-time detection Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25B—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES FOR THE PRODUCTION OF COMPOUNDS OR NON-METALS; APPARATUS THEREFOR
- C25B1/00—Electrolytic production of inorganic compounds or non-metals
- C25B1/01—Products
- C25B1/02—Hydrogen or oxygen
- C25B1/04—Hydrogen or oxygen by electrolysis of water
- C25B1/042—Hydrogen or oxygen by electrolysis of water by electrolysis of steam
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25B—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES FOR THE PRODUCTION OF COMPOUNDS OR NON-METALS; APPARATUS THEREFOR
- C25B11/00—Electrodes; Manufacture thereof not otherwise provided for
- C25B11/02—Electrodes; Manufacture thereof not otherwise provided for characterised by shape or form
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- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- 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
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- 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
- C25B9/60—Constructional parts of cells
- C25B9/65—Means for supplying current; Electrode connections; Electric inter-cell connections
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F22—STEAM GENERATION
- F22B—METHODS OF STEAM GENERATION; STEAM BOILERS
- F22B33/00—Steam-generation plants, e.g. comprising steam boilers of different types in mutual association
- F22B33/18—Combinations of steam boilers with other apparatus
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- 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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- 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
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- Chemical & Material Sciences (AREA)
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- Chemical Kinetics & Catalysis (AREA)
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- Inorganic Chemistry (AREA)
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Abstract
The invention discloses a novel renewable energy hydrogen production system, which comprises: the invention stores valley electricity or green electricity in the form of steam or hot water through the steam heat storage box to provide raw materials for hydrogen production, the steam enters the first plasma device to be ionized into H + and OH ‑, H + is filtered through the first proton exchange device, the rest OH ‑ enters the second plasma device to be ionized into H + and oxygen atoms, H + is filtered through the second proton exchange device, and finally H + is converged and then added into electrons to generate H 2, and the oxygen atoms are formed into oxygen. The invention can adjust the hydrogen production power in a wide range, is suitable for the fluctuation and uncertainty of green electricity, can improve the current density and efficiency of hydrogen production, and simultaneously ensures higher hydrogen purity.
Description
Technical Field
The invention relates to the technical field of hydrogen production systems, in particular to a novel renewable energy hydrogen production system.
Background
The hydrogen energy is a green energy which can solve the energy crisis and the environmental pollution problem in the future at the same time, and is a development trend of the future energy; the safety and the stability of the electric power system can be greatly improved through wind, light and other renewable energy sources for hydrogen production and energy storage, almost no pollution is discharged, the renewable energy source in China has huge hydrogen production potential, the renewable energy source is formed into the world renewable energy source maximum investment country for 8 years, the installed capacity of renewable energy sources such as wind power, photovoltaic and the like is the world first, and the application prospect is very wide. At present, the renewable energy hydrogen production technology in China is in an accelerated development stage, but is still in a laggard level compared with the China such as Germany, japan and the like, the China and local government are actively laying out hydrogen energy development strategies, gradually perfecting a hydrogen energy policy system, and realizing hydrogen production key technology and material localization as soon as possible.
In four technical routes of renewable energy hydrogen production in China (alkaline water electrolysis (AEW), proton exchange membrane water electrolysis (PEM), anion exchange membrane water electrolysis (AEM) and solid oxide water electrolysis (SOE)), the anion exchange membrane water electrolysis (AEM) is still in a laboratory stage; the alkaline water electrolysis (AEW) hydrogen production technology has mature route and better economy, but has the problems of smaller hydrogen production capacity, small current density, large occupied area and the like; solid oxide water electrolysis (SOEC) hydrogen production technology has poor maturity and high investment cost, and is in a small demonstration stage; proton exchange membrane water electrolysis (PEM) hydrogen production current density is high, efficiency is high, the electrolytic cell is small in size and flexible to operate, but the domestic development time is short, the equipment power and economy are still to be broken through further, and especially, large-scale hydrogen production needs a large control system for real-time detection and measurement, data communication and transmission, and the most important is that hydrogen production equipment needs a high-efficiency low-cost hydrogen production system capable of adapting to wide power fluctuation, so that large-scale hydrogen production is possible, but the current technology cannot be realized yet.
Disclosure of Invention
Aiming at the defects in the prior art, the invention provides a novel renewable energy hydrogen production system which can adjust the hydrogen production power in a wide range, adapt to the fluctuation and uncertainty of green electricity, reduce the influence of the fluctuation of the green electricity on the hydrogen production system to zero, improve the current density and efficiency of hydrogen production, ensure higher hydrogen purity, reduce the operation cost of hydrogen production and prolong the service life of electrodes.
The invention provides a novel renewable energy hydrogen production system, which comprises:
the steam heat storage box is internally provided with a steam generator for preparing water vapor;
the first plasma device is communicated with the steam heat storage box, the steam enters the first plasma device, and the steam is ionized and generates particle clusters;
The first proton exchange device is communicated with the first plasma device, the particle clusters enter the first proton exchange device, and the first proton exchange device is used for screening H + in the particle clusters and electrolyzing the H 2;
The second plasma device is communicated with the first proton exchange device, a particle cluster in the first proton exchange device enters the second plasma device, and the second plasma device is used for ionizing OH - in the particle cluster to produce H + and 0;
The second proton exchange device is communicated with the second plasma device, particle clusters in the second plasma device enter the second proton exchange device, and the second proton exchange device is used for screening H + in the particle clusters and electrolyzing the H 2.
As a further improvement of the invention, the first plasma device comprises a first cylinder and a first end plate which are insulated, wherein the first end plate is fixed at two ends of the first cylinder in a sealing way, and a sealing cavity for ionizing water vapor is arranged inside the first cylinder.
As a further improvement of the invention, a first inner electrode is arranged in the first cylinder, two ends of the first inner electrode are respectively fixed on a first end plate at the corresponding end, a first outer electrode is arranged on the outer side wall of the first cylinder, and the first inner electrode and the first outer electrode are respectively electrically connected with two poles of a first plasma power supply.
As a further improvement of the invention, a condensed water channel is arranged on the first cylinder body, the condensed water channel is communicated with the inlet of the condenser through a pipeline, and the outlet of the condenser is communicated with the steam heat storage tank.
As a further improvement of the invention, the first proton exchange device comprises a first proton exchange membrane, a first proton diffusion layer and a first hydrogen storage tank, wherein the first proton diffusion layer and the first plasma device are respectively arranged at two ends of the first proton exchange membrane, the first proton diffusion layer is communicated with the first plasma device, and a first negative plate is arranged in the first hydrogen storage tank and is used for providing electrons.
As a further improvement of the invention, the second plasma device comprises a second cylinder and a second end plate which are insulated, the second end plate is fixed at two ends of the second cylinder in a sealing way, and a sealing cavity for ionizing particle clusters is arranged in the second cylinder and is communicated with the first proton diffusion layer of the first proton exchange device.
As a further improvement of the invention, a second inner electrode is arranged in the second cylinder, two ends of the second inner electrode are respectively fixed on a second end plate at the corresponding end, a second outer electrode is arranged on the outer side wall of the second cylinder, and the second inner electrode and the second outer electrode are respectively and electrically connected with two poles of a second plasma power supply.
As a further improvement of the invention, the second proton exchange device comprises a second proton exchange membrane, a second proton diffusion layer and a second hydrogen storage tank, wherein the second proton diffusion layer and the second plasma device are respectively arranged at two ends of the second proton exchange membrane, the second proton diffusion layer is communicated with the second hydrogen storage tank, and a second negative plate is arranged in the second hydrogen storage tank and is used for providing electrons.
As a further improvement of the invention, the hydrogen production system further comprises a negative high-voltage power supply, wherein one pole of the negative high-voltage power supply is grounded to acquire electrons, and the other pole of the negative high-voltage power supply is respectively and electrically connected with the first negative plate and the second negative plate so as to respectively convey the acquired electrons to the first negative plate and the second negative plate.
As a further development of the invention, an oxygen reservoir is also connected to the second proton diffusion layer.
The invention has the beneficial effects that:
The invention relates to a novel renewable energy hydrogen production system, which comprises the following steps that firstly, the flow of water vapor and the power of a plasma device are regulated to adapt to the characteristic fluctuation curve of green electricity, and the stable operation of the system is ensured by combining valley electricity and daily electricity, so that the hydrogen production power can be regulated in a wide range; secondly, the fluctuating electric energy is converted into steam or hot water by a steam heat storage box to store energy, and the steam heat storage box is released when needed, so that the influence of the fluctuation of green electricity on a hydrogen production system can be reduced to zero; moreover, the dual plasma device and the proton exchange device are utilized to filter hydrogen ions, so that the purity is high, the high-power negative plate is combined to provide strong electric field force, the current density and the efficiency of hydrogen production are improved, and meanwhile, the higher hydrogen purity is ensured; and finally, extracting free electrons from the ground by utilizing a negative high-voltage power supply and emitting electrons to a negative plate, so as to provide low-cost electrons for generating hydrogen by hydrogen ions, and simultaneously, the negative high-voltage power supply can replace an electrolytic power supply, so that the hydrogen production electricity consumption is greatly reduced, the service life of the electrode is prolonged, the ionization of a catalyst is not needed, and the service life of the proton exchange device is prolonged.
Drawings
FIG. 1 is a schematic plan view of a novel renewable energy hydrogen generation system of the present invention;
The reference numerals in the figures illustrate:
10. A first plasma device; 11. a first cylinder; 12. a first end plate; 13. a first internal electrode; 14. a first external electrode; 15. a first plasma power supply; 16. a condensed water channel; 17. a water condenser; 18. a steam heat storage tank; 20. a first proton exchange device; 21. a first proton diffusion layer; 22. a first proton exchange membrane; 23. a first hydrogen tank; 24. a first negative plate; 30. a second plasma device; 31. a second cylinder; 32. a second end plate; 33. a second internal electrode; 34. a second external electrode; 35. a second plasma power supply; 40. a second proton exchange device; 41. a second proton exchange membrane; 42. a second proton diffusion layer; 43. an oxygen reservoir; 44. a second hydrogen tank; 45. a second negative plate; 50. a negative high voltage power supply.
Detailed Description
The present invention will be further described with reference to the accompanying drawings and specific examples, which are not intended to be limiting, so that those skilled in the art will better understand the invention and practice it.
Referring to FIG. 1, one embodiment of a novel renewable energy hydrogen generation system of the present invention;
a novel renewable energy hydrogen generation system comprising:
A steam heat storage tank 18, wherein a steam generator for producing steam is arranged in the steam heat storage tank 18; the main power source of the steam heat storage tank 18 is electric energy, the steam generator is used for preparing low-temperature steam through the electric energy, the flow and the temperature of the steam can be regulated, the steam heat storage tank 18 is the part with the highest energy consumption in the whole system, renewable energy sources (solar energy, wind energy and the like) can be used for generating electricity and storing steam or hot water in low-valley electricity, the steam generator is built in, steam is provided at any time, that is, the steam heat storage tank 18 is used for converting the fluctuating electric energy into steam or hot water for storing energy, the steam is released when needed, and the influence of the fluctuation of green electricity on a hydrogen production system can be reduced to zero;
A first plasma device 10, wherein the first plasma device 10 is communicated with the steam heat storage box 18, the steam enters the first plasma device 10, and the steam is ionized and generates particle clusters; specifically, the water vapor enters the first plasma device 10 to be ionized into H + and OH -, that is, hydrogen ions and hydroxide ions.
The first proton exchange device 20 is connected with the first plasma device 10, the particle clusters enter the first proton exchange device 20, and the first proton exchange device 20 is used for screening and electrolyzing H + in the particle clusters to generate H 2, namely oxygen.
And a second plasma device 30, wherein the second plasma device 30 is connected with the first proton exchange device 20, the particle cluster in the first proton exchange device 20 enters the second plasma device 30, and the second plasma device 30 is used for ionizing OH - in the particle cluster to produce H + and 0, namely hydrogen ions and oxygen atoms.
The second proton exchange device 40 is connected with the second plasma device 30, particle clusters in the second plasma device 30 enter the second proton exchange device 40, the second proton exchange device 40 is used for screening and electrolyzing H + in the particle clusters to generate H 2, the dual plasma device and the proton exchange device are used for hydrogen ion filtration, the purity is high, the high-power negative plate is combined to provide strong electric field force, and the high hydrogen purity is ensured while the current density and the efficiency of hydrogen production are improved.
In a specific embodiment, the first plasma device 10 includes a first cylinder 11 and a first end plate 12 that are insulated, both ends of the first cylinder 11 are sealed and fixed with the first end plate 12, a sealed cavity for ionizing water vapor is formed inside the first cylinder 11, a first inner electrode 13 is disposed inside the first cylinder 11, the first inner electrode 13 is a threaded wire tube, both ends of the first inner electrode 13 are respectively fixed on the first end plate 12 at the corresponding end, a first outer electrode 14 is disposed on an outer side wall of the first cylinder 11, the first outer electrode 14 is a nickel-chromium sheet coil wound on an outer wall of the first cylinder 11, and the first inner electrode 13 and the first outer electrode 14 are respectively electrically connected with two poles of the first plasma power supply 15.
The first plasma power supply 15 is an ac high-voltage power supply, after the two electrodes are connected with the power supply, a high-frequency and high-voltage electric field is generated in the insulated first cylinder 11, and water vapor is ionized into a plasma state under the action of the oscillation of the ac electric field after entering the insulated first cylinder 11, so that the particle cluster mainly comprises H +、e- and OH -, namely hydrogen ions, electrons and hydroxyl ions, and no current is generated between the two electrodes in the plasma process, and only a strong magnetic field force with extremely high energy density is generated, so that the power consumption is extremely small, water molecules are easily decomposed into the particle cluster by using the strong magnetic field force, the electric energy use efficiency of water electrolysis is greatly improved, and the energy consumption of water electrolysis is reduced.
In a specific embodiment, the first cylinder 11 is provided with a condensed water channel 16, the condensed water channel 16 is connected with an inlet of a condenser 17 through a pipeline, an outlet of the condenser 17 is connected with the steam heat storage tank 18, the condenser 17 collects and condenses unionized condensed water and water vapor in the first plasma device 10 and conveys the condensed water and the water vapor into a steam generator of the steam heat storage tank 18, the flow rate of the water vapor and the power of the plasma device are regulated to adapt to the characteristic fluctuation curve of green electricity, the system is ensured to stably operate by combining valley electricity and daily electricity, the hydrogen production power can be adjusted in a wide range, meanwhile, the fluctuation electric energy is converted into steam or hot water by the steam heat storage tank 18 to store energy, and the influence of the fluctuation of the green electricity on the hydrogen production system can be reduced to zero when needed by releasing.
In an embodiment, the first proton exchange device 20 includes a first proton exchange membrane 22, a first proton diffusion layer 21 and a first hydrogen storage tank 23 respectively disposed at two ends of the first proton exchange membrane 22, the first proton diffusion layer 21 is connected to the first plasma device 10, a first negative plate 24 is disposed in the first hydrogen storage tank 23, the first negative plate 24 is used for providing electrons, for example, water vapor enters the first plasma device 10 and is ionized into high-energy particle clusters, the particle clusters mainly include H +、e- and OH -, the high-energy particle clusters enter the first proton exchange device 20, H + passes through the first proton exchange membrane 22 and is attracted by the first negative plate 24, H 2 is generated after the H + acquires electrons from the first negative plate 24, and the remaining high-energy particle clusters (the main component is e -、OH-) enter the second plasma device 30 again.
In a specific embodiment, the second plasma device 30 includes a second cylinder 31 and a second end plate 32 that are insulated, both ends of the second cylinder 31 are sealed and fixed with the second end plate 32, and a sealed cavity for ionizing particle clusters is formed inside the second cylinder 31 and is communicated with the first proton diffusion layer 21 of the first proton exchange device 20; the second cylinder 31 is internally provided with a second inner electrode 33, the second inner electrode 33 is a threaded wire tube, two ends of the second inner electrode 33 are respectively fixed on a second end plate 32 at the corresponding end, the outer side wall of the second cylinder 31 is provided with a second outer electrode 34, the second outer electrode 34 is a nickel-chromium sheet coil coiled on the outer wall of the second cylinder 31, and the second inner electrode 33 and the second outer electrode 34 are respectively electrically connected with two poles of a second plasma power supply 35.
The second plasma power supply 35 is an ac high-voltage power supply, after the two electrodes are connected with the power supply, a high-frequency and high-voltage electric field is generated in the insulated second cylinder 31, OH - in the particle cluster enters the insulated second cylinder 31 and is ionized into a plasma state under the action of the oscillation of the ac electric field, specifically, OH - is ionized into H +、e- and O, namely, hydrogen ions, electrons and oxygen atoms, and no current is generated between the two electrodes in the process of plasma ionization, only a strong magnetic field force with extremely high energy density is generated, so that the power consumption is very small, water molecules are easily decomposed into particle clusters by using the strong magnetic field force, the electric energy use efficiency of water electrolysis is greatly improved, and the energy consumption of water electrolysis is reduced.
In a specific embodiment, the second proton exchange device 40 includes a second proton exchange membrane 41, a second proton diffusion layer 42 and a second hydrogen storage tank 44 respectively disposed at two ends of the second proton exchange membrane 41, the second proton diffusion layer 42 is connected to the second plasma device 30, a second negative plate 45 is disposed in the second hydrogen storage tank 44, the second negative plate 45 is used for providing electrons, an oxygen storage 43 is further connected to the second proton diffusion layer 42, the oxygen storage 43 is used for storing oxygen and has a metal furnace inside, so that electrons can be released, specifically, high-energy particle groups (components mainly including H +、e- and O) formed by ionization in the second plasma device 30 enter the second proton exchange device 40, H + passes through the second proton exchange membrane 41 and is attracted by the second negative plate 45, H + acquires electrons from the second negative plate 45 and then generates H 2, and the rest oxygen atoms and free electrons enter the oxygen storage 43 to release electrons, so as to obtain pure oxygen.
In a specific embodiment, the hydrogen production system further includes a negative high voltage power supply 50, which has the function of an electron emitter, that is, one electrode of the negative high voltage power supply 50 is grounded to obtain electrons, the other electrode of the negative high voltage power supply 50 is electrically connected to the first negative plate 24 and the second negative plate 45 respectively, so as to convey the obtained electrons to the first negative plate 24 and the second negative plate 45 respectively, that is, one electrode of the negative high voltage power supply 50 is grounded and extracts free electrons, and continuously conveys the free electrons to the negative plates, so that the hydrogen ions are provided with electrons and power for the hydrogen ions to traverse the proton exchange membrane.
Compared with PEM water electrolysis hydrogen production, the hydrogen production method can reduce the electricity consumption by 30 percent - percent under the condition of using the same electricity (renewable energy source power generation or industrial and commercial power consumption), can improve the hydrogen production power and purity, can regulate the hydrogen production power in a wide range and is hardly influenced by the green electricity mobility, and the conventional PEM hydrogen production technology only needs to be provided with a low-cost steam heat storage box for storing energy by using the green electricity, so that the system investment is reduced by more than 30 percent.
The invention is used when in use:
Firstly, the water vapor prepared in the vapor heat storage box 18 is led into the first plasma device 10, namely, the water vapor is ionized into a plasma state under the action of alternating current electric field oscillation after entering the insulated first cylinder 11, so that particle clusters are formed, wherein the particle clusters mainly comprise H +、e- and OH -, and unionized condensed water and water vapor in the first plasma device 10 are collected by the condenser 17, condensed and conveyed into a vapor generator of the vapor heat storage box 18;
Secondly, the particle clusters (mainly including H +、e- and OH -) in the first plasma device 10 enter the first proton exchange device 20, that is, H + passes through the first proton exchange membrane 22 and is attracted by the first negative plate 24, H + acquires electrons from the first negative plate 24 to generate H 2, and the remaining particle clusters (mainly including e -、OH-) enter the second plasma device 30;
Furthermore, after the remaining particle clusters (the main component is e -、OH-) enter the second plasma device 30, OH - in the remaining particle clusters enters the insulated second cylinder 31 and is ionized into a plasma state under the action of the alternating current electric field oscillation, specifically, OH - is ionized into H +、e- and O, namely, hydrogen ions, electrons and oxygen atoms;
Finally, the particle clusters (mainly including H +、e- and O) in the second plasma device 30 enter the second proton exchange device 40, that is, H + passes through the second proton exchange membrane 41 and is attracted by the second negative plate 45, H + acquires electrons from the second negative plate 45 to generate H 2, and the remaining oxygen atoms and free electrons enter the oxygen reservoir 43 to release electrons, thereby obtaining pure oxygen.
The above-described embodiments are merely preferred embodiments for fully explaining the present invention, and the scope of the present invention is not limited thereto. Equivalent substitutions and modifications will occur to those skilled in the art based on the present invention, and are intended to be within the scope of the present invention. The protection scope of the invention is subject to the claims.
Claims (8)
1. A renewable energy hydrogen generation system, comprising:
the steam heat storage box is internally provided with a steam generator for preparing water vapor;
the first plasma device is communicated with the steam heat storage box, the steam enters the first plasma device, and the steam is ionized and generates particle clusters;
The first proton exchange device is communicated with the first plasma device, the particle clusters enter the first proton exchange device, and the first proton exchange device is used for screening H + in the particle clusters and electrolyzing the H 2;
The second plasma device is communicated with the first proton exchange device, a particle cluster in the first proton exchange device enters the second plasma device, and the second plasma device is used for ionizing OH - in the particle cluster to produce H + and 0;
The second proton exchange device is communicated with the second plasma device, particle clusters in the second plasma device enter the second proton exchange device, and the second proton exchange device is used for screening H + in the particle clusters and electrolyzing the H 2;
The first plasma device comprises a first cylinder body and a first end plate which are insulated, the first end plate is fixed at two ends of the first cylinder body in a sealing mode, and a sealing cavity for ionizing water vapor is formed in the first cylinder body;
the first proton exchange device comprises a first proton exchange membrane, a first proton diffusion layer and a first hydrogen storage tank, wherein the first proton diffusion layer and the first hydrogen storage tank are respectively arranged at two ends of the first proton exchange membrane, the first proton diffusion layer is communicated with the first plasma device, a first negative plate is arranged in the first hydrogen storage tank and is used for providing electrons.
2. The renewable energy hydrogen production system as claimed in claim 1 wherein a first inner electrode is disposed in the first cylinder, two ends of the first inner electrode are respectively fixed on a first end plate at the corresponding end, a first outer electrode is disposed on an outer side wall of the first cylinder, and the first inner electrode and the first outer electrode are respectively electrically connected with two poles of the first plasma power supply.
3. A renewable energy hydrogen generation system in accordance with claim 1 wherein said first cylinder is provided with a condensate passage, said condensate passage being in communication with an inlet of a condenser via a conduit, an outlet of said condenser being in communication with said vapor heat storage tank.
4. A renewable energy hydrogen generation system in accordance with claim 1 wherein said second plasma device comprises a second cylinder and a second end plate, both ends of said second cylinder being sealed and affixed with said second end plate, said second cylinder having a sealed chamber for ionized clusters therein, said sealed chamber in communication with a first proton diffusion layer of a first proton exchange device.
5. The renewable energy hydrogen production system as claimed in claim 4 wherein a second inner electrode is disposed in the second cylinder, two ends of the second inner electrode are respectively fixed on a second end plate at the corresponding end, a second outer electrode is disposed on the outer side wall of the second cylinder, and the second inner electrode and the second outer electrode are respectively electrically connected with two poles of a second plasma power supply.
6. A renewable energy hydrogen generation system in accordance with claim 1 wherein said second proton exchange device comprises a second proton exchange membrane, a second proton diffusion layer and a second hydrogen reservoir disposed at each end of the second proton exchange membrane, said second proton diffusion layer being in communication with said second plasma device, a second negative plate disposed within said second hydrogen reservoir for providing electrons.
7. A renewable energy hydrogen generation system in accordance with claim 6 further comprising a negative high voltage power supply having one pole grounded to capture electrons and the other pole electrically connected to the first negative plate and the second negative plate, respectively, to deliver the captured electrons to the first negative plate and the second negative plate, respectively.
8. A renewable energy hydrogen generation system in accordance with claim 6 wherein an oxygen reservoir is also coupled to said second proton diffusion layer.
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| US10767271B2 (en) * | 2015-02-24 | 2020-09-08 | Inovi, Inc. | Electrolysis reactor system |
| KR101594350B1 (en) * | 2015-06-30 | 2016-02-16 | 주식회사 윈테크에너지 | Apparatus for manufacturing hydrogen using a steam plasma and method for manufacturing the same |
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