CN113794236A - Energy system with magnesium as carrier and working method thereof - Google Patents

Energy system with magnesium as carrier and working method thereof Download PDF

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Publication number
CN113794236A
CN113794236A CN202111205579.1A CN202111205579A CN113794236A CN 113794236 A CN113794236 A CN 113794236A CN 202111205579 A CN202111205579 A CN 202111205579A CN 113794236 A CN113794236 A CN 113794236A
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Prior art keywords
magnesium
hydrogen
fuel cell
water
inlet
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Inventor
吴家荣
李红智
杨玉
张磊
吴帅帅
张一帆
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Xian Thermal Power Research Institute Co Ltd
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Xian Thermal Power Research Institute Co Ltd
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Priority to CN202111205579.1A priority Critical patent/CN113794236A/en
Publication of CN113794236A publication Critical patent/CN113794236A/en
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    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J3/00—Circuit arrangements for ac mains or ac distribution networks
    • H02J3/38—Arrangements for parallely feeding a single network by two or more generators, converters or transformers
    • H02J3/381—Dispersed generators
    • C—CHEMISTRY; METALLURGY
    • C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25C—PROCESSES FOR THE ELECTROLYTIC PRODUCTION, RECOVERY OR REFINING OF METALS; APPARATUS THEREFOR
    • C25C3/00—Electrolytic production, recovery or refining of metals by electrolysis of melts
    • C25C3/04—Electrolytic production, recovery or refining of metals by electrolysis of melts of magnesium
    • C—CHEMISTRY; METALLURGY
    • C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25C—PROCESSES FOR THE ELECTROLYTIC PRODUCTION, RECOVERY OR REFINING OF METALS; APPARATUS THEREFOR
    • C25C7/00—Constructional parts, or assemblies thereof, of cells; Servicing or operating of cells
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M8/00—Fuel cells; Manufacture thereof
    • H01M8/06—Combination of fuel cells with means for production of reactants or for treatment of residues
    • H01M8/0606—Combination of fuel cells with means for production of reactants or for treatment of residues with means for production of gaseous reactants
    • H01M8/065—Combination of fuel cells with means for production of reactants or for treatment of residues with means for production of gaseous reactants by dissolution of metals or alloys; by dehydriding metallic substances
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J15/00—Systems for storing electric energy
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J3/00—Circuit arrangements for ac mains or ac distribution networks
    • H02J3/28—Arrangements for balancing of the load in a network by storage of energy
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J2300/00—Systems for supplying or distributing electric power characterised by decentralized, dispersed, or local generation
    • H02J2300/20—The dispersed energy generation being of renewable origin
    • H02J2300/22—The renewable source being solar energy
    • H02J2300/24—The renewable source being solar energy of photovoltaic origin
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J2300/00—Systems for supplying or distributing electric power characterised by decentralized, dispersed, or local generation
    • H02J2300/20—The dispersed energy generation being of renewable origin
    • H02J2300/28—The renewable source being wind energy
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J2300/00—Systems for supplying or distributing electric power characterised by decentralized, dispersed, or local generation
    • H02J2300/30—The power source being a fuel cell
    • 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
    • Y02E10/00—Energy generation through renewable energy sources
    • Y02E10/50—Photovoltaic [PV] energy
    • Y02E10/56—Power conversion systems, e.g. maximum power point trackers
    • 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
    • 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
    • Y02E60/50—Fuel cells
    • 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
    • Y02E70/00—Other energy conversion or management systems reducing GHG emissions
    • Y02E70/30—Systems combining energy storage with energy generation of non-fossil origin

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Power Engineering (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • Metallurgy (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Sustainable Development (AREA)
  • Sustainable Energy (AREA)
  • General Chemical & Material Sciences (AREA)
  • Fuel Cell (AREA)

Abstract

The invention discloses an energy system taking magnesium as a carrier and a working method thereof, wherein the magnesium chloride is electrolyzed by utilizing renewable energy power which cannot be absorbed by a power grid, electric energy is converted into chemical energy of a magnesium simple substance for storage, a part of the magnesium simple substance reacts with water to generate a mixture of hydrogen and water vapor for power generation, the generated hydrogen is used as fuel of a hydrogen-chlorine fuel cell, and the product hydrochloric acid of the hydrogen-chlorine fuel cell can be used for generating the magnesium chloride. The energy system couples electrolytic magnesium, magnesium energy storage, magnesium water reaction power generation and a hydrogen-chlorine fuel cell, and has the advantages of high energy storage density, convenience in transportation of energy storage carriers, material recycling and the like.

Description

Energy system with magnesium as carrier and working method thereof
Technical Field
The invention belongs to the technical field of renewable energy utilization and energy storage, and particularly relates to an energy system with magnesium as a carrier and a working method thereof.
Background
The northwest region of China has abundant renewable energy sources, and the generation by using the renewable energy sources is an important way for realizing the double-carbon target, however, the renewable energy source power generation represented by wind energy, photo-thermal power and photovoltaic power generation is difficult to be absorbed by a power grid due to the characteristics of intermittence, instability, uncertainty and the like, and the phenomenon of wind and light abandonment occurs in some places, so that serious resource waste is caused.
Energy storage technologies represented by compressed air energy storage, power battery energy storage, hydrogen storage and the like are becoming research hotspots in the energy field, but the existing energy storage technologies have the problems of low energy storage density, low mobility of energy storage carriers and the like, so that new energy storage carriers need to be developed to realize effective storage of renewable energy power generation.
Disclosure of Invention
The invention aims to provide an energy system taking magnesium as a carrier and a working method thereof, wherein the magnesium chloride is electrolyzed by utilizing renewable energy power which cannot be absorbed by a power grid, electric energy is converted into chemical energy of a magnesium simple substance to be stored, a part of the magnesium simple substance reacts with water to generate a mixture of hydrogen and water vapor for power generation, the generated hydrogen is used as fuel of a hydrogen-chlorine fuel cell, and the product hydrochloric acid of the hydrogen-chlorine fuel cell can be used for generating the magnesium chloride. The energy system couples electrolytic magnesium, magnesium energy storage, magnesium water reaction power generation and a hydrogen-chlorine fuel cell, and has the advantages of high energy storage density, convenience in transportation of energy storage carriers, material recycling and the like.
In order to achieve the purpose, the invention adopts the technical scheme that:
an energy system taking magnesium as a carrier comprises an electrolytic magnesium system, a magnesium water reaction system, a hydrogen-chlorine fuel cell system and a material recovery system;
the magnesium electrolysis system comprises a renewable energy power generation device and a magnesium electrolysis device;
the magnesium water reaction system comprises a magnesium water reactor, a separator, a mixed working medium turbine, a condenser and a generator;
the hydrogen-chlorine fuel cell system comprises a hydrogen-chlorine fuel cell;
the material recovery system comprises an acid-base neutralization device and a drying dehydration device;
the power supply of the magnesium electrolysis device is from a renewable energy power generation device, an anode product of the magnesium electrolysis device is led to a chlorine inlet of a hydrogen chloride fuel cell, a cathode product is led to a magnesium fuel inlet of a magnesium water reactor, water is led to the other inlet of the magnesium water reactor, an outlet of the magnesium water reactor is connected with an inlet of a separator, a mixed working medium outlet of the separator is connected with a mixed working medium turbine inlet, a magnesium hydroxide outlet of the separator is connected with an alkali inlet of an acid-alkali neutralization device, a mixed working medium turbine outlet is connected with an inlet of a condenser, a hydrogen side outlet of the condenser is connected with a hydrogen inlet of the hydrogen chloride fuel cell, a reaction product outlet of the hydrogen chloride fuel cell is connected with an acid inlet of the acid-alkali neutralization device, an outlet of the acid-alkali neutralization device is connected with an inlet of a drying and dehydrating device, and an outlet of the drying and dehydrating device is connected with an electrolytic cell of the magnesium electrolysis device.
The renewable energy in the renewable energy power generation device 1 is wind energy andor solar energy.
An energy system using magnesium as a carrier realizes the processes of magnesium electrolysis, mixed working medium power generation, hydrogen-chlorine fuel cell power generation and material recovery as follows:
the renewable energy power generation device is used as a power supply of the magnesium electrolysis device, the raw material magnesium chloride can be from salt lakes in the northwest, the chlorine gas of the anode product of the magnesium electrolysis device is introduced into a chlorine gas inlet of the hydrogen-chlorine fuel cell, the magnesium elementary substance of the cathode product is used as one part of an energy storage carrier for storage, the conversion from electric energy to chemical energy and the energy storage are realized, one part of the magnesium elementary substance enters the magnesium water reactor to react with water violently at the temperature of more than 80 ℃, and the reaction equation is Mg +2H2O＝Mg(OH)2+H2The mixture of hydrogen, water vapor and magnesium hydroxide produced by the reaction is then sent to a separator for separation, and the dense magnesium hydroxideMagnesium enters the bottom of the separator to be collected, a mixture of hydrogen and steam with low density enters a mixed working medium turbine, a high-temperature and high-pressure mixed working medium expands in the mixed working medium turbine to do work to drive a generator to generate electricity, the mixed working medium which does work enters a condenser to be condensed and separated, liquid water in the condenser is separated, and gaseous hydrogen is introduced into a hydrogen inlet of a hydrogen chlorine fuel cell; the principle of the hydrogen-chlorine fuel cell is the same as that of the hydrogen-oxygen fuel cell, chlorine is used as an oxidant to replace oxygen, the fuel cell is in an acid environment, and the negative pole reaction is H2-2e+＝2H+The positive electrode reaction is CI2+2e+＝2CI-Overall reaction H2+CI22HCI, enabling the product hydrochloric acid to enter an acid-base neutralization device to perform acid-base neutralization reaction with magnesium hydroxide from the bottom of the separator to generate magnesium chloride and water, and heating the water in the magnesium water reaction by using heat released by the reaction; and (3) introducing the generated magnesium chloride and water into a drying and dehydrating device to remove moisture, and introducing the obtained magnesium chloride into an electrolytic bath to realize the recovery of materials.
The invention has the beneficial effects that:
according to the energy system with magnesium as the carrier, magnesium chloride is electrolyzed by using renewable energy power which cannot be consumed, electric energy is converted into chemical energy of a magnesium simple substance for storage, and the problems of wind abandonment, light abandonment and water abandonment are avoided; magnesium is used as an energy storage metal with low density, so that large-scale transportation and storage of energy sources are facilitated; the magnesium water reacts to generate hydrogen which is not only a high-quality clean energy but also can be used as the fuel of a hydrogen-chlorine fuel cell, and the mixed working medium generated by the reaction can generate electricity; the hydrochloric acid of the product of the hydrogen chloride fuel cell is neutralized with the acid and the alkali of the magnesium hydroxide of the reaction product of magnesium water to generate the raw material magnesium chloride of the electrolytic magnesium, thereby realizing the circulation of the materials.
Drawings
FIG. 1 is a schematic diagram of an energy system using magnesium as a carrier.
Description of reference numerals:
1-a renewable energy power generation device; 2-a magnesium electrolysis device; 3-drying and dehydrating device; 4-acid-base neutralization device; a 5-hydrogen chlorine fuel cell; 6-a magnesium water reactor; 7-a separator; 8-mixed working medium turbine; 9-a condenser; 10-a generator.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and examples.
FIG. 1 is a magnesium-based energy system, which includes an electrolytic magnesium system, a magnesium water reaction system, a hydrogen-chlorine fuel cell system and a material recovery system, according to an embodiment of the present invention.
The magnesium electrolysis system comprises a renewable energy power generation device 1 and a magnesium electrolysis device 2;
the magnesium water reaction system comprises a magnesium water reactor 6, a separator 7, a mixed working medium turbine 8, a condenser 9 and a generator 10;
the hydrogen-chlorine fuel cell system comprises a hydrogen-chlorine fuel cell 5;
the material recovery system comprises an acid-base neutralization device 4 and a drying dehydration device 3;
the energy system with magnesium as a carrier is characterized in that a power supply of a magnesium electrolysis device 2 is from a renewable energy power generation device 1, an anode product of the magnesium electrolysis device 2 is led to a chlorine inlet of a hydrogen-chlorine fuel cell 5, a cathode product is led to a magnesium fuel inlet of a magnesium water reactor 6, water is led to the other inlet of the magnesium water reactor 6, an outlet of the magnesium water reactor 6 is connected with an inlet of a separator 7, a mixed working medium outlet of the separator 7 is connected with an inlet of a mixed working medium turbine 8, a magnesium hydroxide outlet of the separator 7 is connected with an alkali inlet of an acid-base neutralization device 4, an outlet of the mixed working medium turbine 8 is connected with an inlet of a condenser 9, a generator 10 and the mixed working medium turbine 8 are coaxially arranged, a hydrogen side outlet of the condenser 9 is connected with a hydrogen inlet of the hydrogen-chlorine fuel cell 5, a reaction product outlet of the hydrogen-chlorine fuel cell 5 is connected with an acid inlet of the acid-base neutralization device 4, an outlet of the acid-base neutralization device 4 is connected with an inlet of a drying and dehydrating device 3, the outlet of the drying dehydration device 3 is connected with the electrolytic bath of the magnesium electrolysis device 2.
The system realizes the processes of magnesium electrolysis, mixed working medium power generation, hydrogen-chlorine fuel cell power generation and material recovery as follows:
the renewable energy power generation device 1 is used as a power supply of the magnesium electrolysis device 2, and the raw material magnesium chloride can be sourced from salt lakes in the northwest and the anode product of the magnesium electrolysis device 2Chlorine is introduced into a chlorine inlet of the hydrogen chlorine fuel cell 5, a cathode product magnesium simple substance is used as an energy storage carrier for storing, the conversion from electric energy to chemical energy and energy storage are realized, one part enters the magnesium water reactor 6 to react with water violently at the temperature of more than 80 ℃, and the reaction equation is Mg +2H2O＝Mg(OH)2+H2The mixture of hydrogen, steam and magnesium hydroxide generated by the reaction enters a separator 7 for separation, the magnesium hydroxide with higher density enters the bottom of the separator 7 to be collected, the mixture of the hydrogen and the steam with lower density enters a mixed working medium turbine 8, the mixed working medium with high temperature and high pressure expands in the mixed working medium turbine to act so as to drive a generator 10 to generate electricity, the mixed working medium which has acted so as enters a condenser 9 for condensation and separation, liquid water in the condenser 9 is separated, and gaseous hydrogen is introduced into a hydrogen inlet of a hydrogen chlorine fuel cell 5. The principle of the hydrogen-chlorine fuel cell 5 is the same as that of the hydrogen-oxygen fuel cell, chlorine is used as an oxidant to replace oxygen, the fuel cell is in an acid environment, and the negative pole reaction is H2-2e+＝2H+The positive electrode reaction is CI2+2e+＝2CI-Overall reaction H2+CI2The product hydrochloric acid enters an acid-base neutralization device 4 to perform acid-base neutralization reaction with magnesium hydroxide from the bottom of a separator 7 to generate magnesium chloride and water, and the heat generated by the reaction can be used for heating water in the magnesium-water reaction. The generated magnesium chloride and water enter a drying and dehydrating device 3 to remove moisture, and the obtained magnesium chloride is introduced into an electrolytic bath to realize the recovery of materials.

Claims (4)

1. An energy system using magnesium as a carrier. The system is characterized by comprising an electrolytic magnesium system, a magnesium-water reaction system, a hydrogen-chlorine fuel cell system and a material recovery system;
the magnesium electrolysis system comprises a renewable energy power generation device (1) and a magnesium electrolysis device (2);
the magnesium water reaction system comprises a magnesium water reactor (6), a separator (7), a mixed working medium turbine (8), a condenser (9) and a generator (10);
the hydrogen-chlorine fuel cell system comprises a hydrogen-chlorine fuel cell (5);
the material recovery system comprises an acid-base neutralization device (4) and a drying dehydration device (3);
the power supply of the magnesium electrolysis device (2) is from a renewable energy power generation device (1), the anode product of the magnesium electrolysis device (2) is led to a chlorine inlet of a hydrogen-chlorine fuel cell (5), the cathode product is led to a magnesium fuel inlet of a magnesium water reactor (6), water is led to the other inlet of the magnesium water reactor (6), an outlet of the magnesium water reactor (6) is connected with an inlet of a separator (7), a mixed working medium outlet of the separator (7) is connected with an inlet of a mixed working medium turbine (8), a magnesium hydroxide outlet of the separator (7) is connected with an alkali inlet of an acid-base neutralization device (4), an outlet of the mixed working medium turbine (8) is connected with an inlet of a condenser (9), a hydrogen side outlet of the condenser (9) is connected with a hydrogen inlet of the hydrogen-chlorine fuel cell (5), and a reaction product outlet of the hydrogen-chlorine fuel cell (5) is connected with an acid inlet of the acid-base neutralization device (4), the outlet of the acid-base neutralization device (4) is connected with the inlet of the drying and dehydration device (3), and the outlet of the drying and dehydration device (3) is connected with the electrolytic bath of the magnesium electrolysis device (2).
2. The method of claim 1, wherein the magnesium chloride as the raw material of the magnesium electrolysis device (2) is from salt lake in northwest.
3. The method of operating a magnesium-based energy system as claimed in claim 1, wherein the renewable energy source in the renewable energy power generation device (1) is wind energy andor solar energy.
4. The working method of the energy system with magnesium as the carrier in claim 1 is characterized in that a renewable energy power generation device (1) is used as a power supply of a magnesium electrolysis device (2), chlorine gas as an anode product of the magnesium electrolysis device (2) is introduced into a chlorine gas inlet of a hydrogen-chlorine fuel cell (5), magnesium as a cathode product is used as a part of an energy storage carrier for storage, so that conversion from electric energy to chemical energy and energy storage are realized, one part of the magnesium enters a magnesium water reactor (6) to react with water violently at the temperature of more than 80 ℃, and the reaction equation is Mg +2H2O＝Mg(OH)2+H2The hydrogen, water vapor and magnesium hydroxide produced by the reaction are mixedThe substance then enters a separator (7) for separation, magnesium hydroxide with high density enters the bottom of the separator (7) for collection, a mixture of hydrogen with low density and steam enters a mixed working medium turbine (8), a high-temperature and high-pressure mixed working medium expands in the mixed working medium turbine to act to drive a generator (10) to generate electricity, the acting mixed working medium enters a condenser (9) for condensation and separation, liquid water in the condenser (9) is separated, and gaseous hydrogen is introduced into a hydrogen inlet of a hydrogen chlorine fuel cell (5); the principle of the hydrogen-chlorine fuel cell (5) is the same as that of the hydrogen-oxygen fuel cell, chlorine is used as an oxidant to replace oxygen, the fuel cell is in an acid environment, and the negative pole reaction is H2-2e+＝2H+The positive electrode reaction is CI2+2e+＝2CI-Overall reaction H2+CI22HCI, enabling the product hydrochloric acid to enter an acid-base neutralization device (4) to perform acid-base neutralization reaction with magnesium hydroxide from the bottom of a separator (7) to generate magnesium chloride and water, and using heat released by the reaction for heating water in magnesium water reaction; the generated magnesium chloride and water enter a drying dehydration device (3) to remove moisture, and the obtained magnesium chloride is introduced into an electrolytic bath to realize the recovery of materials.
CN202111205579.1A 2021-10-15 2021-10-15 Energy system with magnesium as carrier and working method thereof Pending CN113794236A (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114517310A (en) * 2022-01-11 2022-05-20 常州大学 Fresnel light-gathering electrolysis magnesium preparation and liquid chlorine recovery device based on dual oxidation resistance and crystallization layer control

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114517310A (en) * 2022-01-11 2022-05-20 常州大学 Fresnel light-gathering electrolysis magnesium preparation and liquid chlorine recovery device based on dual oxidation resistance and crystallization layer control

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