CN114875426A - Steam plasma hydrogen production system - Google Patents
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- CN114875426A CN114875426A CN202210417093.2A CN202210417093A CN114875426A CN 114875426 A CN114875426 A CN 114875426A CN 202210417093 A CN202210417093 A CN 202210417093A CN 114875426 A CN114875426 A CN 114875426A
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- 229910052739 hydrogen Inorganic materials 0.000 title claims abstract description 54
- 239000001257 hydrogen Substances 0.000 title claims abstract description 54
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 title claims abstract description 51
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 33
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 82
- 239000012528 membrane Substances 0.000 claims abstract description 24
- 239000003054 catalyst Substances 0.000 claims abstract description 12
- 239000002184 metal Substances 0.000 claims description 21
- 238000007789 sealing Methods 0.000 claims description 2
- 238000005868 electrolysis reaction Methods 0.000 abstract description 18
- 230000003197 catalytic effect Effects 0.000 abstract description 13
- 238000005516 engineering process Methods 0.000 abstract description 9
- 230000000694 effects Effects 0.000 abstract description 6
- 230000002035 prolonged effect Effects 0.000 abstract 1
- 230000006872 improvement Effects 0.000 description 11
- 230000005684 electric field Effects 0.000 description 5
- 238000005265 energy consumption Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 230000009471 action Effects 0.000 description 3
- -1 hydrogen ions Chemical class 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 230000008859 change Effects 0.000 description 2
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 2
- 230000010355 oscillation Effects 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- 125000004430 oxygen atom Chemical group O* 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 239000003011 anion exchange membrane Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 239000010453 quartz Substances 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000003860 storage 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
- 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
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05H—PLASMA TECHNIQUE; PRODUCTION OF ACCELERATED ELECTRICALLY-CHARGED PARTICLES OR OF NEUTRONS; PRODUCTION OR ACCELERATION OF NEUTRAL MOLECULAR OR ATOMIC BEAMS
- H05H1/00—Generating plasma; Handling plasma
- H05H1/24—Generating plasma
- H05H1/46—Generating plasma using applied electromagnetic fields, e.g. high frequency or microwave energy
-
- 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)
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Metallurgy (AREA)
- Electrochemistry (AREA)
- Materials Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Organic Chemistry (AREA)
- Plasma & Fusion (AREA)
- Inorganic Chemistry (AREA)
- Electromagnetism (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Electrolytic Production Of Non-Metals, Compounds, Apparatuses Therefor (AREA)
Abstract
The invention discloses a steam plasma hydrogen production system, which comprises: a steam generator for producing steam; the plasma generator is communicated with the steam generator, the steam generated by the steam generator enters the plasma generator, and the steam is ionized into H + The water vapor plasma of (a); the electrolytic cell is communicated with a plasma generator, water vapor plasma generated in the plasma generator enters the electrolytic cell, and H in the water vapor plasma + Is electrolyzed to generate H 2 . The invention utilizes the plasma technology to ionize water molecules by consuming little electric energy, enhance the activity of the water molecules, and combines a proton exchange membrane system for the water electrolysis of the PEM, thereby greatly reducing the driving energy of a direct current power supply, lightening a catalyst layerThe catalytic pressure, the current density and the hydrogen production efficiency are improved indirectly, the power consumption of hydrogen production is reduced, and the service life of the electrolytic cell is prolonged.
Description
Technical Field
The invention relates to the technical field of hydrogen production systems, in particular to a steam plasma hydrogen production system.
Background
The hydrogen energy is a secondary energy source which is wide in source, clean, free of carbon, flexible, efficient and rich in application scenes, has the advantages of large energy density, long storage period and the like, can be used as an important component in a clean and efficient energy production and consumption system in China, and hydrogen production from renewable energy sources is a main direction for development of the hydrogen energy industry in the future. In four technical routes (alkaline water electrolysis (AEW), proton exchange membrane water electrolysis (PEM), anion exchange membrane water electrolysis (AEM) and solid oxide water electrolysis (SOE)) of renewable energy hydrogen production at present, PEM water electrolysis hydrogen production has the advantages of high current density, small electrolytic cell volume, flexible operation, contribution to quick load change, good matching property with wind power and photovoltaic power and the like, and is considered to be an electrolytic hydrogen production technology with the development prospect in the hydrogen production field. Although the PEM water electrolysis hydrogen production technology has obvious advantages in four main technologies, further breakthrough in technical aspects such as further improvement of power of PEM water electrolysis hydrogen production, improvement of current density and energy use efficiency and the like is needed to better meet the requirements of renewable energy application, and further research and exploration are needed by those skilled in the art for solving the problems.
Disclosure of Invention
The water vapor plasma hydrogen production system is provided for overcoming the defects in the prior art, the cost of the existing PEM hydrogen production is reduced, the current density and the hydrogen production efficiency are improved, and the working pressure of the PEM proton exchange membrane is relieved.
The invention provides a steam plasma hydrogen production system, which comprises:
a steam generator for producing steam;
the plasma generator is communicated with the steam generator, the steam generated by the steam generator enters the plasma generator, and the steam is ionized to contain H + The water vapor plasma of (a);
the electrolytic cell is communicated with the plasma generator, water vapor plasma generated in the plasma generator enters the electrolytic cell, and H in the water vapor plasma + Is electrolyzed to generate H 2 。
As a further improvement of the invention, a first pipeline is communicated between the outlet of the steam generator and the inlet of the plasma generator, and the first pipeline is used for introducing water vapor generated by the steam generator into the plasma generator.
As a further improvement of the invention, a steam valve is connected in series with the first pipeline and is used for controlling the flow rate of the steam in the first pipeline.
As a further improvement of the invention, the plasma generator comprises an insulating shell, a sealed cavity for ionizing water vapor is arranged in the shell, and the first pipeline is communicated with the sealed cavity.
As a further improvement of the invention, the shell comprises an insulating cylinder, insulating plates are fixed on the front covers of both ends of the cylinder, and the inside of the cylinder forms the sealing cavity.
As a further improvement of the invention, the inner electrode and the outer electrode are respectively arranged inside and outside the cylinder body, and are respectively electrically connected with the two electrodes of the plasma power supply.
As a further improvement of the present invention, the inner electrode is a metal tube coaxially disposed with the cylinder, and both ends of the metal tube are respectively fixed to the insulating plates at the corresponding ends.
As a further improvement of the invention, the outer electrode is a metal cylinder coaxially sleeved outside the cylinder body, the metal cylinder is attached to the outer side surface of the cylinder body, and the outer surface of the metal cylinder is provided with an insulating sleeve for completely covering the metal cylinder.
As a further improvement of the invention, the electrolytic cell comprises a proton exchange membrane, a cathode cavity and an anode cavity which are arranged at two sides of the proton exchange membrane, the anode cavity is communicated with an outlet of the plasma generator through a second pipeline, and the cathode cavity and the anode cavity are respectively provided with an H 2 Outlet and O 2 And (7) an outlet.
As a further improvement of the invention, an anode electrode and an anode catalyst layer are arranged in the anode cavity, a cathode electrode and a cathode catalyst layer are arranged in the cathode cavity, and the anode electrode and the cathode electrode are respectively and electrically connected with the anode and the cathode of the direct current power supply.
The invention has the beneficial effects that:
the invention relates to a system for producing hydrogen by steam plasma, which produces hydrogen by a steam generatorThe flow and the opening and closing of the warm water vapor are controlled by a steam valve, and the low-temperature water vapor enters a low-temperature plasma generator to generate water vapor plasma (the component is H) + 、e - 、OH - O), the water vapor plasma re-enters the PEM electrolyzer and becomes H 2 And O 2 The invention utilizes the plasma technology to ionize water molecules by consuming little electric energy, enhance the activity of the water molecules, and combines a proton exchange membrane system for the water electrolysis of the PEM, thereby greatly reducing the driving energy of a direct current power supply, lightening the catalytic pressure of a catalytic layer, improving the catalytic power and current density, indirectly improving the hydrogen production efficiency, reducing the hydrogen production power consumption and prolonging the service life of an electrolytic cell; the invention uses the low-cost plasma generating device to configure the proton exchange membrane system, and compared with the complete device of the PEM electrolytic cell, the equipment investment is greatly reduced.
Drawings
FIG. 1 is a schematic plan view of a system for producing hydrogen from steam by plasma in accordance with the present invention;
the reference numbers in the figures illustrate:
11. a steam generator; 12. a steam valve; 13. a first conduit; 100. a plasma generator; 14. an insulating plate; 15. a plasma power supply; 16. an inner electrode; 17. an outer electrode; 18. an insulating sleeve; 19. a barrel; 200. an electrolytic cell; 20. a direct current power supply; 21. an anode electrode; 22. an anode catalyst layer; 23. a cathode catalyst layer; 24. a cathode electrode; 25. o is 2 An outlet; 26. a proton exchange membrane; 27. h 2 An outlet; 28. a second conduit.
Detailed Description
The present invention is further described below in conjunction with the following figures and specific examples so that those skilled in the art may better understand the present invention and practice it, but the examples are not intended to limit the present invention.
Referring to fig. 1, one embodiment of a steam plasma hydrogen production system of the present invention;
a steam plasma hydrogen production system comprising:
a steam generator 11, wherein the steam generator 11 is used for generating water vapor;
the plasma generator 100 is communicated with the steam generator 11, the steam generated by the steam generator 11 enters the plasma generator 100, and the steam is ionized to contain H + The water vapor plasma of (a); the water vapor plasma comprises H + 、e - 、OH - And O, i.e., hydrogen ions, electrons, hydroxyl groups, and oxygen atoms; the activity of water molecule plasma groups is enhanced through a plasma technology, more electron quantity is provided in unit time, the hydrogen production time is shortened, and the current density and the hydrogen production efficiency are improved.
An electrolytic cell 200, wherein the electrolytic cell 200 is communicated with the plasma generator 100, the water vapor plasma generated in the plasma generator 100 enters the electrolytic cell 200, and H in the water vapor plasma + Is electrolyzed to generate H 2 Specifically, H in a water vapor plasma + 、e - 、OH - O is electrolyzed in the electrolytic bath 200 to generate H 2 And O 2 。
According to the invention, water molecules are ionized by consuming very little electric energy by using a plasma technology, the activity of the water molecules is enhanced, and then the water molecules are combined with a proton exchange membrane system for water electrolysis of a PEM (proton exchange membrane) to greatly reduce the driving energy of a direct-current power supply, lighten the catalytic pressure of a catalytic layer, improve the catalytic power and current density, indirectly improve the hydrogen production efficiency, reduce the hydrogen production power consumption and prolong the service life of an electrolytic cell; the invention uses the low-cost plasma generating device to configure the proton exchange membrane system, and compared with the complete device of the PEM electrolytic cell, the equipment investment is greatly reduced.
In a specific embodiment, a first pipe 13 is communicated between an outlet of the steam generator 11 and an inlet of the plasma generator 100, specifically, the first pipe 13 is made of a temperature-resistant insulating material, the first pipe 13 is used for guiding the water vapor generated by the steam generator 11 into the plasma generator 100, a steam valve 12 is connected in series to the first pipe 13, and the steam valve 12 is used for controlling the flow rate of the water vapor in the first pipe 13.
An embodimentIn one example, the plasma generator 100 includes an insulating housing, a sealed cavity for ionizing water vapor is provided in the housing, and the first pipe 13 is communicated with the sealed cavity, specifically, the housing includes an insulating cylinder 19, specifically, the cylinder 19 is cylindrical, the insulating plates 14 are fixed to both ends of the cylinder 19, the sealed cavity is formed in the cylinder 19, and the water vapor is ionized into water vapor plasma in the sealed cavity, that is, H + 、e - 、OH - And O, i.e., hydrogen ions, electrons, hydroxyl groups, and oxygen atoms.
The inner electrode 16 and the outer electrode 17 are respectively arranged inside and outside the cylinder 19, the inner electrode 16 and the outer electrode 17 are respectively electrically connected with two electrodes of the plasma power supply 15, the plasma power supply 15 is an alternating current high-voltage power supply, a high-frequency and high-voltage electric field can be generated in the insulated cylinder 19 after the two electrodes are powered on, water vapor can be ionized into a plasma state under the action of alternating current electric field oscillation after entering the insulated cylinder 19, namely, the water vapor plasma, and only strong magnetic field force with extremely high energy density is generated due to no current generated between the two electrodes in the plasma process, so that the power consumption is very low, water molecules are easily decomposed into particle clusters by utilizing 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 inner electrode 16 is a metal tube disposed coaxially with the cylinder 19, the metal tube is treated by an anti-corrosion process, and two ends of the metal tube are respectively fixed on the insulating plates 14 at the corresponding ends; the outer electrode 17 is a metal cylinder coaxially sleeved outside the cylinder body 19, the metal cylinder is arranged in the middle of the cylinder body 19 in the length direction of the cylinder body 19, the first pipeline 13 and the second pipeline 28 are respectively located at two ends of the metal cylinder, the metal cylinder is attached to the outer side face of the cylinder body 19, an insulating sleeve 18 completely covering the metal cylinder is arranged on the outer surface of the metal cylinder, and the insulating sleeve 18 is made of high-temperature-resistant quartz.
The electrolytic cell 200 in this embodiment is constructed as the electrolytic cell 200 commonly used in the electrolysis of water using the proton exchange membrane 26, and more specifically, itThe electrolytic cell 200 comprises a proton exchange membrane 26, and a cathode cavity and an anode cavity which are arranged at two sides of the proton exchange membrane 26, the anode cavity is communicated with the outlet of the plasma generator 100 through a second pipeline 28, and the cathode cavity and the anode cavity are respectively provided with H 2 Outlets 27 and O 2 An outlet 25; an anode electrode 21 and an anode catalyst layer 22 are arranged in the anode cavity, a cathode electrode 24 and a cathode catalyst layer 23 are arranged in the cathode cavity, and the anode electrode 21 and the cathode electrode 24 are respectively and electrically connected with the anode and the cathode of the direct-current power supply 20; specifically, a water vapor plasma in the electrolytic cell 200, H + Through the proton exchange membrane 26 to the cathode electrode 24, in combination with e - Form H 2 (ii) a O formation on the anode 21 2 ；OH - Decomposed to H in the anode catalyst layer 22 of the proton exchange membrane 26 + And O; e.g. of the type - A closed circuit loop is formed along the line to the positive pole of the dc power supply 20. The energy consumption principle of PEM water electrolysis is that the electric field force between a positive plate and a negative plate attracts the crossing of hydrogen ions and is combined with a catalyst to accelerate the ionization of water molecules, electrons generated after ionization reach the positive electrode of a direct current power supply and then work from the negative electrode to the crossing cathode under the action of driving power, and the energy conservation is defined and analyzed.
That is, the invention utilizes the plasma technology to ionize water molecules by consuming little electric energy, enhance the activity of the water molecules, and combines a proton exchange membrane system of PEM water electrolysis, thereby greatly reducing the driving energy of a direct current power supply 20, lightening the catalytic pressure of a catalytic layer, improving the catalytic power and current density, indirectly improving the hydrogen production efficiency, reducing the hydrogen production power consumption and prolonging the service life of an electrolytic cell; the invention uses the low-cost plasma generating device to configure the proton exchange membrane system, compared with the PEM electrolytic cell complete machine device, the equipment investment is greatly reduced by about 20 percent; therefore, the invention prepares water vapor plasma by a plasma generator, combines a proton exchange membrane system of PEM electrolyzed water to prepare hydrogen with low energy consumption, low cost, high capacity and high purity, and preliminarily calculates the hydrogen with the same electric power (renewable energy)Source power generation or industrial and commercial power utilization) by referring to the current PEM hydrogen production power consumption cost (the power consumption for preparing hydrogen is 80-100kwh/kgH 2 ) The method for preparing hydrogen can reduce the power consumption by 30-50 percent, and simultaneously, the hydrogen preparation speed and the purity are also improved.
When the invention is used:
the low-temperature water vapor is prepared by the steam generator 11, the low-temperature water vapor enters the cylinder 19 of the low-temperature plasma generator 100 through the first pipeline 13, the flow and the switch of the first pipeline 13 are controlled by the steam valve 12, a high-frequency and high-voltage electric field can be generated in the insulated cylinder 19 after the two electrodes on the plasma generator 100 are powered on, the water vapor can be ionized into a plasma state under the action of alternating current electric field oscillation after entering the insulated cylinder 19, namely, the water vapor plasma, and in the plasma process, because no current is generated between the two electrodes, only 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 utilizing 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; the water vapor plasma enters the electrolytic cell 200 through the second conduit 28, i.e., H + Through the proton exchange membrane 26 to the cathode electrode 24, in combination with e - Form H 2 And from H 2 The outlet 27 discharges O, which forms O at the anode electrode 21 2 And from O 2 Outlet 25, OH - Decomposed to H in the anode catalyst layer 22 of the proton exchange membrane 26 + And O, e - A closed circuit loop is formed along the line to the positive pole of the dc power supply 20. The invention utilizes the plasma technology to ionize water molecules by consuming little electric energy, enhances the activity of the water molecules, and combines a proton exchange membrane system for PEM water electrolysis, thereby greatly reducing the driving energy of a direct current power supply, lightening the catalytic pressure of a catalytic layer, improving the catalytic power and current density, indirectly improving the hydrogen production efficiency, reducing the hydrogen production power consumption and prolonging the service life of an electrolytic cell.
The above-mentioned embodiments are merely preferred embodiments for fully illustrating the present invention, and the scope of the present invention is not limited thereto. The equivalent substitution or change made by the technical personnel in the technical field on the basis of the invention is all within the protection scope of the invention. The protection scope of the invention is subject to the claims.
Claims (10)
1. A steam plasma hydrogen production system, comprising:
a steam generator for producing steam;
the plasma generator is communicated with the steam generator, the steam generated by the steam generator enters the plasma generator, and the steam is ionized to contain H + The water vapor plasma of (a);
the electrolytic cell is communicated with the plasma generator, water vapor plasma generated in the plasma generator enters the electrolytic cell, and H in the water vapor plasma + Is electrolyzed to generate H 2 。
2. The system for producing hydrogen by using water vapor plasma as claimed in claim 1, wherein a first pipeline is communicated between the outlet of the steam generator and the inlet of the plasma generator, and the first pipeline is used for introducing water vapor produced by the steam generator into the plasma generator.
3. The system for producing hydrogen by using water vapor plasma as claimed in claim 2, wherein a steam valve is connected in series with the first pipeline and is used for controlling the flow of water vapor in the first pipeline.
4. The system for producing hydrogen by using water vapor plasma as claimed in claim 2, wherein the plasma generator comprises an insulating shell, a sealed cavity for ionizing water vapor is arranged in the shell, and the first pipeline is communicated with the sealed cavity.
5. The system for producing hydrogen by using water vapor plasma as claimed in claim 4, wherein the housing comprises an insulating cylinder, insulating plates are fixed on the two ends of the cylinder in a sealing way, and the sealed cavity is formed inside the cylinder.
6. The system for producing hydrogen by using water vapor plasma as claimed in claim 5, wherein the inner and outer parts of the cylinder are respectively provided with an inner electrode and an outer electrode, and the inner electrode and the outer electrode are respectively electrically connected with two electrodes of a plasma power supply.
7. The system for producing hydrogen by using water vapor plasma as claimed in claim 6, wherein the inner electrode is a metal tube coaxially arranged with the cylinder, and both ends of the metal tube are respectively fixed on the insulating plates at the corresponding ends.
8. The system for producing hydrogen by using water vapor plasma as claimed in claim 6, wherein the outer electrode is a metal cylinder coaxially sleeved outside the cylinder body, the metal cylinder is attached to the outer side surface of the cylinder body, and the outer surface of the metal cylinder is provided with an insulating sleeve for completely covering the metal cylinder.
9. The system for producing hydrogen by using water vapor plasma as claimed in claim 1, wherein the electrolytic cell comprises a proton exchange membrane, and a cathode cavity and an anode cavity which are arranged on two sides of the proton exchange membrane, the anode cavity is communicated with the outlet of the plasma generator through a second pipeline, and the cathode cavity and the anode cavity are respectively provided with H 2 Outlet and O 2 And (7) an outlet.
10. The system for producing hydrogen by using water vapor plasma according to claim 9, wherein an anode electrode and an anode catalyst layer are arranged in the anode cavity, a cathode electrode and a cathode catalyst layer are arranged in the cathode cavity, and the anode electrode and the cathode electrode are respectively and electrically connected with the anode and the cathode of the direct-current power supply.
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| CN202210417093.2A CN114875426A (en) | 2022-04-20 | 2022-04-20 | Steam plasma hydrogen production system |
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