CN114590819B - Efficient amino energy storage method and energy storage system using redundant plasma of power plant - Google Patents

Efficient amino energy storage method and energy storage system using redundant plasma of power plant Download PDF

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CN114590819B
CN114590819B CN202210296193.4A CN202210296193A CN114590819B CN 114590819 B CN114590819 B CN 114590819B CN 202210296193 A CN202210296193 A CN 202210296193A CN 114590819 B CN114590819 B CN 114590819B
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nitrogen
plasma
barrier discharge
ammonia
energy storage
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CN114590819A (en
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张百强
陈宇慧
张航源
李宗懋
宣可颖
田琳琳
刘仕仁
刘凯文
李军辉
张永海
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Zhengzhou University of Light Industry
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    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01C—AMMONIA; CYANOGEN; COMPOUNDS THEREOF
    • C01C1/00—Ammonia; Compounds thereof
    • C01C1/02—Preparation, purification or separation of ammonia
    • C01C1/04—Preparation of ammonia by synthesis in the gas phase
    • C01C1/0494—Preparation of ammonia by synthesis in the gas phase using plasma or electric discharge
    • 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
    • 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
    • Y02E60/16—Mechanical energy storage, e.g. flywheels or pressurised fluids
    • 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)
  • Organic Chemistry (AREA)
  • Power Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Plasma & Fusion (AREA)
  • Analytical Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Physical Or Chemical Processes And Apparatus (AREA)
  • Exhaust Gas After Treatment (AREA)

Abstract

The invention discloses a high-efficiency amino energy storage method and an energy storage system using redundant plasmas of a power plant, which solve the technical problem of large energy dissipation in the existing ammonia production process. The invention uses redundant electric energy generated by a power plant to supply power for a plasma energy storage system, wherein the plasma energy storage system comprises two types, one type is a dielectric barrier discharge plasma-chemical chain energy storage system, and the other type is a dielectric barrier discharge plasma-catalytic energy storage system. The technical scheme of the invention utilizes the redundant electric quantity of the power plant to efficiently produce ammonia. And generating dielectric barrier discharge plasma by using the redundant electric quantity of the power plant. Based on a chemical chain system, nitrogen reacts with magnesium oxide under the action of dielectric barrier discharge plasma to generate ammonia; or based on a catalytic system, nitrogen and steam are synthesized into ammonia.

Description

Efficient amino energy storage method and energy storage system using redundant plasma of power plant
Technical Field
The invention relates to the technical field of chemical energy storage, in particular to a high-efficiency amino energy storage method and an energy storage system using redundant electric plasmas of a power plant.
Background
At present, in order to accelerate intelligent transformation of power grid infrastructure and intelligent micro-grid construction, improve complementary mutual aid and intelligent regulation capability of a power system, strengthen the connection of source network charge storage, promote coal electricity flexibility transformation, and improve flexibility of a coal-fired power plant through measures such as bypass transformation, electric heat conversion, residual energy utilization and the like in the prior art.
The energy storage technology aims at maintaining the system efficiency and energy grade so as to realize the side-to-side matching of fuel and output electric quantity. The current energy storage technology for redundant electric quantity mainly comprises three aspects: firstly, converting energy to be utilized, and converting redundant electric quantity into potential energy of water to be utilized; secondly, storing heat, namely storing redundant electric quantity in water, molten salt or other liquid for subsequent utilization; thirdly, clean energy sources, such as zero-carbon fuel like hydrogen, are prepared, however, the common energy storage utilization form has the problems of large heat energy dissipation and other energy loss.
Ammonia (NH) 3 ) As important chemical raw materials and good hydrogen storage materials (hydrogen storage amount is 17.6wt%) the demand of the ammonia decomposition hydrogen production is increasing in the global scope, especially in the hydrogen fuel cell field, the carbon monoxide (CO) contained in the product can be completely avoided, and the technical bottleneck of 'poisoning shock' caused by CO is broken through. At present, 40% of the world ammonia comes from an industrially mature Haber-Bosch (H-B) ammonia production process, which is mature and high in ammonia production efficiency, but the demanding reaction conditions of high temperature, high pressure, catalyst and the like, lead to the energy consumption reaching 1-2% of the global energy consumption. Nitrogen (N) 2 ) The natural reserves are rich, and the ammonia is an important nitrogen source in the ammonia production process. N (N) 2 The bond energy of the medium stable triple bond (N.ident.N) is as high as 941 kJ/mol, and the dissociation difficulty is a key factor limiting the efficiency of synthesis of ammonia.
Therefore, how to utilize nitrogen with abundant reserves in nature to prepare clean energy, namely ammonia, and avoid harsh reaction conditions such as high temperature, high pressure, catalyst and the like in the preparation process, and reduce energy dissipation in the ammonia preparation process is a technical problem to be solved.
Disclosure of Invention
Aiming at the defects in the background technology, the invention provides a high-efficiency amino energy storage method and an energy storage system thereof by utilizing redundant plasmas of a power plant, which solve the technical problem of large energy dissipation in the existing ammonia production process.
The technical scheme of the application is as follows: a method for efficiently storing energy by utilizing redundant plasmas of a power plant uses redundant electric energy generated by the power plant to supply power for a plasma energy storage system, wherein the plasma energy storage system comprises two types, namely a dielectric barrier discharge plasma-chemical chain energy storage system and a dielectric barrier discharge plasma-catalytic energy storage system.
When the dielectric barrier discharge plasma-chemical chain energy storage system is adopted, air is collected and nitrogen is separated from the air to be used as a nitrogen source for nitrogen fixation reaction; the dielectric barrier discharge low-temperature plasma is adopted to act on the nitrogen source and the magnesium oxide particles, so that the nitrogen source and the magnesium oxide react to generate magnesium nitride, and the nitrogen fixation process is realized; the magnesium nitride reacts with water to generate magnesium hydroxide and ammonia gas, so as to realize the nitrogen release process; separating ammonia gas from water vapor, drying, storing and using, converting magnesium hydroxide into magnesium oxide, and recycling in nitrogen fixation process;
when the dielectric barrier discharge plasma-catalytic energy storage system is adopted, air is collected and nitrogen is separated from the air to be used as a nitrogen source for nitrogen fixation reaction; under the action of catalyst and dielectric barrier discharge low-temperature plasma, water vapor is excited into OH free radical and H ion, N by the dielectric barrier discharge low-temperature plasma 2 Generating plasma species (NH, N) by inelastic collisions in a plasma atmosphere 2 + 、N 2 * ) H ions react with N plasmas under the action of a catalyst to produce ammonia; separating ammonia gas from water vapor, drying, and storing for use.
The dielectric barrier discharge low-temperature plasma is generated by a plasma generating device, and the frequency and the voltage of the plasma generating device are regulated and controlled by a frequency regulator.
Further, the frequency of the high-voltage power supply regulated and controlled by the frequency regulator is 10KHz-40KHz, and the voltage amplitude is 0KV-20KV.
The energy storage system utilizing the power plant redundant plasma efficient amino energy storage method is characterized in that the dielectric barrier discharge plasma-chemical chain energy storage system comprises a first air compressor, a first air separation device and a first nitrogen compressor which are sequentially connected, the first air compressor collects compressed air and conveys the compressed air to the first air separation device, the first air separation device separates nitrogen in the air and conveys the nitrogen to the first nitrogen compressor, and the first nitrogen compressor conveys the nitrogen to a dielectric barrier discharge plasma nitrogen fixation reactor for nitrogen fixation.
Further, the dielectric barrier discharge plasma nitrogen fixation reactor is connected with the ground and comprises a closed reaction cavity, the closed reaction cavity is connected between the first nitrogen press and the nitrogen carrier storage tank, a plasma electrode connected with the plasma generating device and the frequency regulator is arranged on the outer wall of the closed reaction cavity, in the closed container, a nitrogen source and magnesium oxide react under the action of the plasma generating device and the frequency regulator to generate magnesium nitride, and the nitrogen carrier storage tank is fixedly arranged or detachably arranged.
Further, the nitrogen carrier storage tank is connected with a nitrogen release reactor, a water supply system is arranged in the nitrogen release reactor, the nitrogen release reactor is connected with the dielectric barrier discharge plasma nitrogen fixation reactor through a hydroxide transfer conversion device, and magnesium hydroxide generated in the nitrogen release reactor is converted into magnesium oxide through the hydroxide transfer conversion device and then enters the dielectric barrier discharge plasma nitrogen fixation reactor for recycling.
Further, the nitrogen release reactor is sequentially connected with a first spiral winding type condenser, a first drying box and a first ammonia storage tank, and ammonia gas produced in the nitrogen release reactor enters the first ammonia storage tank for storage after being separated by water and gas of the first spiral winding type condenser and dried by the first drying box.
Further, the dielectric barrier discharge plasma-catalytic energy storage system comprises a second air compressor, a second air separation device and a second nitrogen compressor which are sequentially connected, compressed air is collected by the second air compressor and is conveyed to the second air separation device, nitrogen in the air is separated by the second air separation device and is conveyed to the second nitrogen compressor, and nitrogen is conveyed to the dielectric barrier discharge plasma ammonia reactor by the second nitrogen compressor to synthesize ammonia.
Further, the dielectric barrier discharge plasma ammonia reactor is connected with the ground and comprises a closed synthesizer cavity, the synthesizer cavity is connected with a water vapor generating device, and water vapor is generatedA steam regulating valve is arranged between the generating device and the synthesizer cavity, a nitrogen regulating valve is arranged between the second nitrogen press and the synthesizer cavity, a plasma generating device and a frequency regulator are arranged on the synthesizer cavity, quartz blocking mediums are respectively arranged between the high and low voltage electrodes of the plasma, and catalysts Ru-Al are uniformly filled between the quartz blocking mediums 2 O 3 In the synthesizer cavity, the nitrogen source and the water vapor react under the action of the plasma generating device and the frequency regulator to generate ammonia.
Further, the dielectric barrier discharge plasma ammonia reactor is sequentially connected with a second spiral wound condenser, a second drying box and a second ammonia storage tank, and ammonia gas produced in the nitrogen release reactor enters the second ammonia storage tank for storage after being separated by water and gas of the second spiral wound condenser and dried by the second drying box.
The invention improves the energy utilization rate, reduces a large amount of energy dissipation when the energy storage technology utilizing the redundant electric quantity releases electric energy, provides a high-efficiency amino energy storage method based on the plasma technology utilizing the redundant electric quantity of a power plant and an energy storage system thereof, and solves the problem of large energy dissipation in the ammonia production process; meanwhile, the required raw materials are cheap and easy to obtain, and the economy is good. The invention can directly convert electric energy into chemical energy, reduce energy dissipation and carbon dioxide (CO) 2 ) The discharge is more advantageous than the conventional mode.
According to the technical scheme, the redundant electric quantity of the power plant is utilized to carry out high-efficiency ammonia production, dielectric barrier discharge plasma is generated by utilizing the redundant electric quantity of the power plant, nitrogen and magnesium oxide are reacted to generate ammonia based on a chemical chain system, and magnesium oxide and nitrogen are enabled to generate magnesium nitride through nitridation reaction under the action of dielectric barrier discharge low-temperature plasma in a dielectric barrier discharge plasma nitrogen fixation reactor, so that a nitrogen fixation process is realized; magnesium nitride, water and magnesium hydroxide and ammonia gas are generated in the nitrogen release reactor, so that a nitrogen release process is realized, magnesium hydroxide generated in the process can be decomposed into magnesium oxide, and the magnesium oxide is conveyed to a nitrogen fixation process for continuous use.
Or based on a catalytic system, synthesizing the nitrogen and the water vapor into ammonia, wherein the catalyst adopted in the ammonia preparation process is Ru-Al 2 O 3 The water vapor is excited into OH free radical and H ion, N by dielectric barrier discharge low temperature plasma 2 Generating plasma species (NH, N) by inelastic collisions in a plasma atmosphere 2 + 、N 2 * ) And H ions react with N plasmas under the action of a catalyst to produce ammonia. The key technology is that in the process of preparing ammonia by plasma, N is at low temperature and normal pressure 2 And the water vapor can be directly converted into NH 3 。
In addition, compared with the H-B ammonia production process, the reaction condition of the plasma ammonia production process is mild, gas molecules can be directly converted into neutral ionized gas containing a large number of active species (electrons, ions, ground states, excited states and active free radicals) at low pressure and normal temperature, the dynamic effect is remarkable, and the molecular activation and reaction which are difficult to carry out under the normal pressure and low temperature condition can be realized. Dielectric barrier discharge low-temperature plasma is used as a typical representative of low-temperature plasma, and compared with other plasmas, the dielectric barrier discharge low-temperature plasma has higher ammonia production efficiency and lower energy consumption. And (3) exciting nitrogen plasma by using the redundant electric quantity of the power plant, and converting the redundant electric quantity into ammonia in the form of chemical energy for storage so as to be used by other aspects or be replenished into a power grid.
Drawings
In order to more clearly illustrate the embodiments of the present invention, the drawings that are required for the description of the embodiments will be briefly described below, it being apparent that the drawings in the following description are only some embodiments of the present invention and that other drawings may be obtained from these drawings without inventive effort for a person of ordinary skill in the art.
FIG. 1 is a schematic diagram of the connection of a power plant to a plasma energy storage system according to embodiment 1;
FIG. 2 is a schematic diagram of a medium-barrier discharge plasma-chemical chain energy storage system according to example 2;
FIG. 3 is a schematic diagram of a dielectric barrier discharge plasma-catalyzed energy storage system according to example 3;
reference numerals in the drawings: the device comprises a 1-turbine, a 2-generator, a 3-power distribution device, a 4-plasma energy storage system, a 5-power grid, a 6-first air compressor, a 7-first air separation device, an 8-first nitrogen compressor, a 9-dielectric barrier discharge plasma nitrogen fixation reactor, a 10-nitrogen carrier storage tank, a 11-nitrogen release reactor, a 12-hydroxide transfer conversion device, a 13-first spiral condenser, a 14-first drying box, a 15-first ammonia storage tank, a 16-second air compressor and a 17-second air separation device; 18-second nitrogen compressor, 19-steam generator, 20-dielectric barrier discharge plasma ammonia reactor, 21-second spiral wound condenser, 22-second drying oven, 23-second ammonia storage tank, 24-steam regulating valve and 25-gas regulating valve.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without any inventive effort, are intended to be within the scope of the invention.
Embodiment 1, a method for efficient amino energy storage by using redundant plasma in a power plant, as shown in fig. 1, comprises four parts: thermal power plant, distribution device, electric wire netting and plasma energy storage system. Under the condition of normal electricity utilization, superheated steam generated by a boiler converts internal energy into mechanical energy through a steam turbine 1, the steam turbine 1 drives a generator 2 to generate electricity, and the generator 2 is connected with a power distribution device 3. Under normal power supply load, the power distribution device 3 transmits electric energy to the power grid 5 for residents to use; and in the peak period of electricity consumption, the plasma energy storage system 4 is powered, so that the energy is further stored and utilized.
Specifically, the redundant electric energy generated by the power plant is used for supplying power to the plasma energy storage system 4, and the plasma energy storage system 4 comprises two types, wherein one type is a dielectric barrier discharge plasma-chemical chain energy storage system, and the other type is a dielectric barrier discharge plasma-catalytic energy storage system;
when the dielectric barrier discharge plasma-chemical chain energy storage system is adopted, air is collected and nitrogen is separated from the air to be used as a nitrogen source for nitrogen fixation reaction; the dielectric barrier discharge low-temperature plasma is adopted to act on a nitrogen source, so that the nitrogen source reacts with magnesium oxide to generate magnesium nitride, and the nitrogen fixation process is realized; the magnesium nitride reacts with water to generate magnesium hydroxide and ammonia gas, so as to realize the nitrogen release process; separating ammonia gas from water vapor, drying, storing and using, converting magnesium hydroxide into magnesium oxide, and recycling in nitrogen fixation process;
when the dielectric barrier discharge plasma-catalytic energy storage system is adopted, air is collected and nitrogen is separated from the air to be used as a nitrogen source for nitrogen fixation reaction; under the action of catalyst and dielectric barrier discharge low-temperature plasma, water vapor is excited into OH free radical and H ion and N by the dielectric barrier discharge plasma 2 Generating plasma species (NH, N) by inelastic collisions in a plasma atmosphere 2 + 、N 2 * ) H ions react with N plasmas under the action of a catalyst to produce ammonia; separating ammonia gas from water vapor, drying, and storing for use.
Further, the dielectric barrier discharge low-temperature plasma is generated by a plasma generating device, and the plasma generating device is regulated and controlled by a frequency regulator. Preferably, the frequency of the high-voltage power supply regulated and controlled by the frequency regulator is 10KHz-40KHz, and the voltage amplitude is 0KV-20KV.
In embodiment 2, the energy storage system adopting the efficient amino energy storage method utilizing redundant electric plasmas of a power plant is shown in fig. 2, and the dielectric barrier discharge plasma-chemical chain energy storage system comprises a first air compressor 6, a first air separation device 7 and a first nitrogen compressor 8 which are sequentially connected. The first air compressor 6 collects and conveys compressed air to the first air separation device 7, the first air separation device 7 separates nitrogen in the air and conveys the nitrogen to the first nitrogen compressor 8, and the first nitrogen compressor 8 conveys the nitrogen to the dielectric barrier discharge plasma nitrogen fixation reactor 9 for nitrogen fixation.
The dielectric barrier discharge plasma nitrogen fixation reactor 9 is connected with the ground and comprises a closed reaction cavity, the closed reaction cavity is connected between the first nitrogen press 8 and the nitrogen carrier storage tank 10, and a plasma electrode connected with the plasma generating device and the frequency regulator is arranged on the outer wall of the closed reaction cavity. In the closed container, the nitrogen source and magnesium oxide react under the action of the plasma generating device and the frequency regulator to generate magnesium nitride, and the nitrogen carrier storage tank 10 is fixedly arranged or detachably arranged. When the destination distance of the ammonia production demand is far, a vehicle-mounted transportation mode can be adopted to transport a nitrogen carrier (metal nitride) to the destination, and then the nitrogen carrier reacts with water at the destination to prepare the required ammonia; when ammonia gas is required to be directly used, the ammonia gas can also be directly transported into the nitrogen release reactor 11 through a pipeline.
The nitrogen carrier storage tank 10 is connected with a nitrogen release reactor 11, a water supply system is arranged in the nitrogen release reactor 11, the nitrogen release reactor 11 is connected with the dielectric barrier discharge plasma nitrogen fixation reactor 9 through a hydroxide transfer conversion device 12, and magnesium hydroxide generated in the nitrogen release reactor 11 is converted into magnesium oxide through the hydroxide transfer conversion device 12 and then enters the dielectric barrier discharge plasma nitrogen fixation reactor 9 for recycling.
The nitrogen release reactor 11 is sequentially connected with a first spiral condenser 13, a first drying box 14 and a first ammonia storage tank 15, and ammonia gas produced in the nitrogen release reactor 11 enters the first ammonia storage tank 15 for storage after being separated from water and gas by the first spiral condenser 13 and dried by the first drying box 14.
The plasma generating device and the frequency regulator in the present embodiment are powered by the power distribution device 3, or all the electric appliances in the present embodiment are powered by the power distribution device 3 in embodiment 1.
The implementation method of this example is the same as that of example 1 when a dielectric barrier discharge plasma-chemical chain energy storage system is used.
In embodiment 3, the energy storage system adopting the method for efficient amino energy storage by using redundant electric plasmas of a power plant is shown in fig. 3, and the dielectric barrier discharge plasma-catalytic energy storage system comprises a second air compressor 16, a second air separation device 17 and a second nitrogen compressor 18 which are sequentially connected. The second air compressor 16 collects and delivers compressed air to the second air separation device 17, the second air separation device 17 separates nitrogen in the air and delivers the nitrogen to the second nitrogen compressor 18, and the second nitrogen compressor 18 delivers the nitrogen to the dielectric barrier discharge plasma ammonia reactor 20 for ammonia synthesis.
Further, the dielectric barrier discharge plasma ammonia reactor 20 is connected with the ground and comprises a closed synthesizer cavity, the synthesizer cavity is connected with a water vapor generating device 19, a vapor regulating valve 24 is arranged between the water vapor generating device 19 and the synthesizer cavity, and a nitrogen regulating valve 25 is arranged between the second nitrogen compressor 18 and the synthesizer cavity. The steam regulating valve 24 is used for controlling the flow rate of the water steam, and the nitrogen regulating valve 25 is used for controlling the flow rate of the nitrogen. A plasma generating device and a frequency regulator are arranged on the synthesizer cavity, quartz blocking mediums are respectively arranged between the high and low voltage electrodes of the plasma, and catalysts Ru-Al are uniformly filled between the quartz blocking mediums 2 O 3 In the synthesizer cavity, the nitrogen source and the water vapor react under the action of the plasma generating device and the frequency regulator to generate ammonia.
The dielectric barrier discharge plasma ammonia reactor 20 is sequentially connected with a second spiral wound condenser 21, a second drying box 22 and a second ammonia storage tank 23, and ammonia gas produced in the plasma ammonia reactor 20 enters the second ammonia storage tank 23 for storage after being separated by water and gas in the second spiral wound condenser 21 and dried in the second drying box 22.
The implementation method of this example is the same as that of example 1 when a dielectric barrier discharge plasma-catalyzed energy storage system is used.
The present invention is not limited to the conventional technical means known to those skilled in the art.
The above description is only of the preferred embodiment of the invention, and is not intended to limit the invention, and the catalyst is not limited to Ru-Al 2 O 3 The chemical chain method is not limited to the magnesium oxide-magnesium hydroxide-magnesium nitride system, and any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the scope of the present invention.

Claims (2)

1. A high-efficiency amino energy storage method utilizing redundant plasmas of a power plant is characterized by comprising the following steps of: the redundant electric energy generated by the power plant is used for supplying power to the plasma energy storage system (4), the superheated steam generated by the boiler converts internal energy into mechanical energy through the steam turbine (1), the steam turbine (1) drives the generator (2) to generate power, and the generator (2) is connected with the power distribution device (3); under normal power supply load, the power distribution device (3) transmits electric energy to the power grid (5) for residents to use; supplying power to the plasma energy storage system (4) in the electricity consumption peak period;
the plasma energy storage system (4) comprises two types, wherein one type is a dielectric barrier discharge plasma-chemical chain energy storage system, and the other type is a dielectric barrier discharge plasma-catalytic energy storage system;
when the dielectric barrier discharge plasma-chemical chain energy storage system is adopted, air is collected and nitrogen is separated from the air to be used as a nitrogen source for nitrogen fixation reaction; the dielectric barrier discharge low-temperature plasma is adopted to act on a nitrogen source, so that the nitrogen source reacts with magnesium oxide to generate magnesium nitride, and the nitrogen fixation process is realized; the magnesium nitride reacts with water to generate magnesium hydroxide and ammonia gas, so as to realize the nitrogen release process; separating ammonia gas from water vapor, drying, compressing, storing and using, further heating magnesium hydroxide to convert into magnesium oxide, and recycling in the nitrogen fixation process;
the medium barrier discharge plasma-chemical chain energy storage system comprises a first air compressor (6), a first air separation device (7) and a first nitrogen compressor (8) which are sequentially connected, wherein the first air compressor (6) collects compressed air and conveys the compressed air to the first air separation device (7), the first air separation device (7) separates nitrogen in the air and conveys the nitrogen to the first nitrogen compressor (8), and the first nitrogen compressor (8) conveys the nitrogen to a medium barrier discharge plasma nitrogen fixation reactor (9) for nitrogen fixation;
the medium barrier discharge plasma nitrogen fixation reactor (9) is reliably connected with the ground and comprises a closed reaction cavity, the closed reaction cavity is connected between a first nitrogen press (8) and a nitrogen carrier storage tank (10), a plasma electrode connected with a plasma generating device and a frequency regulator is arranged on the outer wall of the closed reaction cavity, a nitrogen source and magnesium oxide react under the action of the plasma generating device and the frequency regulator in the closed container to generate magnesium nitride, and the nitrogen carrier storage tank (10) is fixedly arranged or detachably arranged;
the nitrogen carrier storage tank (10) is connected with a nitrogen release reactor (11), a water supply system is arranged in the nitrogen release reactor (11), the nitrogen release reactor (11) is connected with the dielectric barrier discharge plasma nitrogen fixation reactor (9) through a hydroxide transfer conversion device (12), and magnesium hydroxide generated in the nitrogen release reactor (11) is converted into magnesium oxide through the hydroxide transfer conversion device (12) and then enters the dielectric barrier discharge plasma nitrogen fixation reactor (9) for recycling;
the nitrogen release reactor (11) is sequentially connected with a first spiral winding condenser (13), a first drying box (14) and a first ammonia storage tank (15), and ammonia gas produced in the nitrogen release reactor (11) enters the first ammonia storage tank (15) for storage after being subjected to water-gas separation by the first spiral winding condenser (13) and drying by the first drying box (14); when the distance between the destination and the ammonia production demand is far, a vehicle-mounted transportation mode is adopted to transport the nitrogen carrier to the destination, and then the nitrogen carrier reacts with water at the destination to prepare the required ammonia; when the ammonia gas is needed to be directly used, the ammonia gas is directly transported to a nitrogen release reactor (11) through a pipeline;
when the dielectric barrier discharge plasma-catalytic energy storage system is adopted, air is collected and nitrogen is separated from the air to be used as a nitrogen source for nitrogen fixation reaction; under the action of catalyst and dielectric barrier discharge low-temperature plasma, water vapor is excited into OH free radical and H ion, N by the dielectric barrier discharge low-temperature plasma 2 Generating plasma species (NH, N) by inelastic collisions in a low temperature plasma atmosphere of an isostatically barrier discharge 2 + 、N 2 * ) H ions react with N plasmas under the action of a catalyst to produce ammonia; separating ammonia gas from water vapor, drying, and storing for use;
the dielectric barrier discharge plasma-catalytic energy storage system comprises a second air compressor (16), a second air separation device (17) and a second nitrogen compressor (18) which are sequentially connected, wherein the second air compressor (16) collects compressed air and conveys the compressed air to the second air separation device (17), the second air separation device (17) separates nitrogen in the air and conveys the nitrogen to the second nitrogen compressor (18), and the second nitrogen compressor (18) conveys the nitrogen to a dielectric barrier discharge plasma ammonia reactor (20) to synthesize ammonia;
the dielectric barrier discharge plasma ammonia reactor (20) is reliably connected with the ground and comprises a closed synthesizer cavity, the synthesizer cavity is connected with a water vapor generating device (19), a vapor regulating valve (24) is arranged between the water vapor generating device (19) and the synthesizer cavity, a nitrogen regulating valve (25) is arranged between a second nitrogen press (18) and the synthesizer cavity, a plasma generating device and a frequency regulator are arranged on the synthesizer cavity, quartz barrier mediums are respectively arranged between high and low voltage electrodes of the plasma, and catalysts Ru-Al are uniformly filled between the quartz barrier mediums 2 O 3 In the synthesizer cavity, a nitrogen source and water vapor react under the action of a plasma generating device and a frequency regulator to generate ammonia;
the medium barrier discharge plasma ammonia reactor (20) is sequentially connected with a second spiral condenser (21), a second drying box (22) and a second ammonia storage tank (23), and ammonia gas produced in the medium barrier discharge plasma ammonia reactor (20) enters the second ammonia storage tank (23) for storage after being separated by water and gas in the second spiral condenser (21) and dried in the second drying box (22);
the dielectric barrier discharge low-temperature plasma is generated by a plasma generating device, and the frequency and the voltage of the plasma generating device are regulated and controlled by a frequency regulator; the plasma generating device and the frequency regulator are powered by the power distribution device (3), or all electric equipment is powered by the power distribution device (3).
2. The efficient amino energy storage method utilizing power plant redundant plasma according to claim 1, wherein the method comprises the following steps: the frequency of the high-voltage power supply regulated and controlled by the frequency regulator is 10KHz-40KHz, and the voltage amplitude is 0KV-20KV.
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