CN116154241A - Metal-carbon dioxide battery power system coupled with power plant carbon capture and operation method thereof - Google Patents
Metal-carbon dioxide battery power system coupled with power plant carbon capture and operation method thereof Download PDFInfo
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- CN116154241A CN116154241A CN202310180729.0A CN202310180729A CN116154241A CN 116154241 A CN116154241 A CN 116154241A CN 202310180729 A CN202310180729 A CN 202310180729A CN 116154241 A CN116154241 A CN 116154241A
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- 229910002092 carbon dioxide Inorganic materials 0.000 title claims abstract description 169
- 239000001569 carbon dioxide Substances 0.000 title claims abstract description 169
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- 229910052799 carbon Inorganic materials 0.000 title claims abstract description 83
- 238000000034 method Methods 0.000 title claims abstract description 22
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 claims abstract description 156
- 239000007788 liquid Substances 0.000 claims description 49
- 230000008929 regeneration Effects 0.000 claims description 19
- 238000011069 regeneration method Methods 0.000 claims description 19
- 238000004891 communication Methods 0.000 claims description 18
- 238000010521 absorption reaction Methods 0.000 claims description 17
- 230000005611 electricity Effects 0.000 claims description 15
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims description 10
- 239000003546 flue gas Substances 0.000 claims description 10
- 238000005086 pumping Methods 0.000 claims description 6
- WFLRGOXPLOZUMC-UHFFFAOYSA-N [Li].O=C=O Chemical group [Li].O=C=O WFLRGOXPLOZUMC-UHFFFAOYSA-N 0.000 claims description 5
- 239000007789 gas Substances 0.000 claims description 5
- 239000006096 absorbing agent Substances 0.000 claims description 4
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- 238000005516 engineering process Methods 0.000 abstract description 9
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- 238000011161 development Methods 0.000 abstract description 4
- 230000002745 absorbent Effects 0.000 description 4
- 239000002250 absorbent Substances 0.000 description 4
- 238000010248 power generation Methods 0.000 description 4
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- MYMOFIZGZYHOMD-UHFFFAOYSA-N Dioxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 description 1
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 description 1
- 238000003763 carbonization Methods 0.000 description 1
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- 238000003487 electrochemical reaction Methods 0.000 description 1
- 239000005431 greenhouse gas Substances 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 229910001416 lithium ion Inorganic materials 0.000 description 1
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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
- H02J15/00—Systems for storing electric energy
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M12/00—Hybrid cells; Manufacture thereof
- H01M12/04—Hybrid cells; Manufacture thereof composed of a half-cell of the fuel-cell type and of a half-cell of the primary-cell type
- H01M12/06—Hybrid cells; Manufacture thereof composed of a half-cell of the fuel-cell type and of a half-cell of the primary-cell type with one metallic and one gaseous electrode
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- 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
- H01M8/0612—Combination of fuel cells with means for production of reactants or for treatment of residues with means for production of gaseous reactants from carbon-containing material
-
- 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
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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
- H02J3/28—Arrangements for balancing of the load in a network by storage of energy
- H02J3/32—Arrangements for balancing of the load in a network by storage of energy using batteries with converting means
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
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Abstract
The invention discloses a metal-carbon dioxide battery power system coupled with power plant carbon capture and an operation method thereof. When the electric power is sufficient, the energy peak shaving system can charge the metal-carbon dioxide battery, so that the capacity of the battery for absorbing carbon dioxide is recovered. The coupling of the two technologies realizes the economy, low carbon property and energy peak regulation of the carbon trapping system, and provides a new way for the green development of a novel power system.
Description
Technical Field
The invention relates to the technical field of carbon capture, in particular to a metal-carbon dioxide battery power system coupled with power plant carbon capture and an operation method thereof.
Background
In order to improve the cleanliness of coal-fired units and promote the development of low carbonization, the current main stream power generation electric field mainly using fossil fuel is usually provided with carbon dioxide trapping and storing technology to trap carbon dioxide generated after combustion, so that the low carbon emission is realized, and the trapped carbon dioxide can be used as a renewable carbon resource for secondary utilization to change waste into valuables. How to convert carbon dioxide, a greenhouse gas, into a valuable clean energy source has become one of the research hotspots.
Disclosure of Invention
The present invention has been made based on the findings and knowledge of the inventors regarding the following facts and problems:
the metal-carbon dioxide battery in the related art not only has a higher energy density than the lithium ion battery, but also avoids the limitation that the lithium-air battery needs to be operated under a pure oxygen atmosphere to avoid side reactions. The metal-carbon dioxide battery takes carbon dioxide as an energy carrier, has the characteristics of carbon dioxide conversion and utilization and energy storage, can realize carbon dioxide emission reduction and high-efficiency utilization at the same time, and has great application prospect in the aspects of balancing energy storage and carbon circulation.
The present invention aims to solve at least one of the technical problems in the related art to some extent. To this end, embodiments of the present invention provide a metal-carbon dioxide battery power system coupled with a plant carbon capture, and a method of operating the power system.
The metal-carbon dioxide battery power system coupled with the carbon capture of the power plant comprises: the carbon capture system comprises an absorption tower and a regeneration tower, wherein the absorption tower is used for absorbing carbon dioxide in the flue gas to generate a rich solution, and the rich solution is input into the regeneration tower to be desorbed to generate carbon dioxide; a metal-carbon dioxide cell having a negative electrode and a positive electrode, the carbon capture system in communication with the negative electrode, carbon dioxide being fed to the negative electrode as a feed gas to cause the metal-carbon dioxide cell to generate electricity, the metal-carbon dioxide cell generating electricity providing the carbon capture system with electrical energy required for system operation; and the energy peak regulation system can store redundant electric energy of the metal-carbon dioxide battery and can charge the metal-carbon dioxide battery when the electric power is sufficient.
The metal-carbon dioxide battery power system coupled with the carbon capture of the power plant combines the power plant carbon capture technology with the metal-carbon dioxide battery technology, the captured carbon dioxide is used as a reactant of the battery to generate electricity, the generated electric energy is transmitted back to the carbon capture system to offset the electric power consumption in the carbon capture process, and the residual electric energy can be stored in the energy peak regulation system. When the electric power is sufficient, the energy peak shaving system can charge the metal-carbon dioxide battery, so that the capacity of the battery for absorbing carbon dioxide is recovered. The coupling of the two technologies realizes the economy, low carbon property and energy peak regulation of the carbon trapping system, and provides a new way for the green development of a novel power system.
In some embodiments, the power system further comprises a carbon dioxide storage device coupled to the metal-carbon dioxide battery for storing carbon dioxide released by the metal-carbon dioxide battery upon charging.
In some embodiments, the energy peaking system is also capable of delivering stored electrical energy to the power grid for electrical replenishment.
In some embodiments, the carbon capture system further comprises a rich liquid pump for pumping rich liquid in the absorber tower and inputting to the regeneration tower, a lean liquid pump for pumping lean liquid in the regeneration tower and inputting to the absorber tower, the metal-carbon dioxide battery being capable of powering the rich liquid pump and the lean liquid pump.
In some embodiments, the power system further comprises a lean-rich liquid heat exchanger, the rich liquid pump outlet being in communication with a cold side inlet of the lean-rich liquid heat exchanger, a cold side outlet of the lean-rich liquid heat exchanger being in communication with an inlet of the regeneration tower, the lean liquid pump outlet being in communication with a hot side inlet of the lean-rich liquid heat exchanger, a hot side outlet of the lean-rich liquid heat exchanger being in communication with an inlet of the absorption tower.
In some embodiments, the metal-carbon dioxide battery is a lithium-carbon dioxide battery.
Another aspect of the present invention provides a method of operating a metal-carbon dioxide battery power system coupled to a plant carbon capture, the power system being a metal-carbon dioxide battery power system coupled to a plant carbon capture according to any one of the embodiments described above, the method of operating comprising:
the carbon trapping system is used for trapping carbon dioxide in the flue gas;
and delivering carbon dioxide to the cathode of the metal-carbon dioxide battery, discharging the metal-carbon dioxide battery, delivering electric energy to the carbon capture system for utilization, and storing the redundant electric energy in the energy peak shaving system if the redundant electric energy exists.
In some embodiments, the method of operating an electrical power system further comprises, when the electrical power is sufficient, the energy peaking system charging the metal-carbon dioxide battery and storing carbon dioxide released from the metal-carbon dioxide battery by a carbon dioxide storage device.
In some embodiments, carbon dioxide stored by the carbon dioxide storage device is transported to the metal-carbon dioxide battery anode upon power generation by the metal-carbon dioxide battery.
In some embodiments, the method of operating an electrical power system further comprises, in the event of a power deficiency, the energy peak shaving system supplementing the electrical grid with electrical energy.
Drawings
FIG. 1 is a schematic diagram of a metal-carbon dioxide battery power system coupled to plant carbon capture according to an embodiment of the present invention.
Reference numerals:
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings. The embodiments described below by referring to the drawings are illustrative and intended to explain the present invention and should not be construed as limiting the invention.
The basic structure of a metal-carbon dioxide battery power system coupled with carbon capture in a power plant according to an embodiment of the present invention is described below with reference to fig. 1, and as shown in fig. 1, the power system includes a carbon capture system 100, a metal-carbon dioxide battery 200, and an energy peak shaving system 300.
The carbon capture system 100 comprises an absorption tower 110 and a regeneration tower 120, wherein the absorption tower 110 is used for absorbing carbon dioxide in the flue gas to generate a rich solution, and the rich solution is input into the regeneration tower 120 to be desorbed to generate carbon dioxide. Specifically, the lean absorbent liquid is input into the absorption tower 100, the flue gas generated by the power plant is input into the absorption tower 100, the absorbent is contacted with the flue gas, carbon dioxide in the flue gas is absorbed to form rich liquid with higher carbon dioxide content, the rich liquid is discharged out of the absorption tower 110 and enters the regeneration tower 120 for regeneration, and carbon dioxide is separated from the absorbent to form high-concentration carbon dioxide gas and lean liquid with lower carbon dioxide content. In general, the lean solution is recycled, and the lean solution is fed into the absorption tower 110 to absorb carbon dioxide again.
The metal-carbon dioxide cell 200 has a negative electrode 210 and a positive electrode 220, the carbon capture system 100 is in communication with the negative electrode 210, carbon dioxide is input as a feed gas to the negative electrode 210 to cause the metal-carbon dioxide cell 200 to generate electricity, and the metal-carbon dioxide cell 200 generates electricity to provide the carbon capture system 100 with electrical energy required for system operation to offset the electrical power consumption of the carbon capture system 100 during carbon capture.
The energy peak shaving system 300 can store the surplus electric energy of the metal-carbon dioxide battery 200, and can charge the metal-carbon dioxide battery 200 so as to cause the metal-carbon dioxide battery 200 to perform the reverse reaction of discharge and release carbon dioxide, thereby recovering the capacity of absorbing carbon dioxide.
The metal-carbon dioxide battery power system coupled with the carbon capture of the power plant combines the power plant carbon capture technology with the metal-carbon dioxide battery technology, the captured carbon dioxide is used as a reactant of the battery to generate electricity, the generated electric energy is transmitted back to the carbon capture system to offset the electric power consumption in the carbon capture process, and the residual electric energy can be stored in the energy peak regulation system. When the electric power is sufficient, the energy peak shaving system can charge the metal-carbon dioxide battery, so that the capacity of the battery for absorbing carbon dioxide is recovered. The coupling of the two technologies realizes the economy, low carbon property and energy peak regulation of the carbon trapping system, and provides a new way for the green development of a novel power system.
In some embodiments, as shown in fig. 1, the power system further comprises a carbon dioxide storage device 230, the carbon dioxide storage device 230 being connected to the metal-carbon dioxide battery 200 for storing carbon dioxide released by the metal-carbon dioxide battery 200 upon charging.
Further, in some alternative embodiments, the carbon dioxide storage device 230 may also deliver carbon dioxide as a feed gas to the negative electrode 210 of the metal-carbon dioxide cell 200 when the metal-carbon dioxide cell 200 is discharged, and the metal-carbon dioxide cell 200 is electrochemically discharged. Alternatively, the carbon dioxide storage device 230 may supply carbon dioxide to the anode 210 together with the carbon capture system 100, or the carbon dioxide stored in the carbon dioxide storage device 230 may be used first, when the amount of carbon dioxide is insufficient, the carbon capture system 100 may be used for supplying air, or the carbon capture system 100 may be used for supplying air, and the carbon dioxide stored in the carbon dioxide storage device 230 may be used for supplying air.
Further, the carbon dioxide storage device 230 may also be in communication with the carbon capture system 100, and the carbon capture system 100 may transfer the excess carbon dioxide generated to the carbon dioxide storage device 230 for storage.
Optionally, the high purity carbon dioxide stored by carbon dioxide storage device 230 may also be available for subsequent industrial and food industries.
In some embodiments, the energy peaking system 300 may also be capable of delivering stored electrical energy to the power grid for electrical replenishment. That is, the remaining amount of electricity generated by the metal-carbon dioxide battery 200 may also be stored in the energy peak shaver system 300, and used when the power supply is insufficient, so as to realize energy peak shaver.
In some embodiments, as shown in fig. 1, the carbon capture system 100 includes a rich liquid pump 130, a lean liquid pump 140. The lean liquid inlet of the absorption tower 110 is disposed at the top, the rich liquid outlet is disposed at the bottom, the rich liquid pump 130 is used for pumping out the rich liquid in the absorption tower 110 and inputting the rich liquid into the regeneration tower 120, the rich liquid inlet of the regeneration tower 120 is disposed at the top, and the lean liquid outlet is disposed at the bottom. The lean liquid pump 140 is used for pumping out the lean liquid in the regeneration tower 120 and inputting the lean liquid into the absorption tower 110, so as to realize recycling of the absorbent. The metal-carbon dioxide battery 200 can supply power to the rich and lean pumps 130, 140 to offset the power consumption during carbon capture.
Further, as shown in fig. 1, the carbon capture system 100 further includes a lean rich liquid heat exchanger 150, the rich liquid pump outlet is in communication with the cold side inlet of the lean rich liquid heat exchanger, the cold side outlet of the lean rich liquid heat exchanger is in communication with the inlet of the regeneration tower, the lean liquid pump outlet is in communication with the hot side inlet of the lean rich liquid heat exchanger, and the hot side outlet of the lean rich liquid heat exchanger is in communication with the inlet of the absorption tower.
The electric power system provided by the embodiment of the invention combines the carbon capture system of the power plant with the metal-carbon dioxide battery, so that the economy of electric energy production and the low carbon property of system emission can be considered. Carbon dioxide trapped by a power plant carbon trapping system is used as a reactant of a metal-carbon dioxide battery to generate electricity, and the generated electric energy can be transmitted back to the carbon trapping system to supply power for various pump bodies, compressors and the like in the carbon trapping system so as to offset the power consumption in the carbon trapping process.
As an example, the metal-carbon dioxide battery 200 is a lithium-carbon dioxide battery. The theoretical voltage of the lithium-carbon dioxide cell was 2.8V (formula 1), and it was calculated that the power of 2273kWh could theoretically be generated per 1 ton of carbon dioxide consumed (4 mol. Times.96500C mol -1 ×2.8V/3600/3×1000/44×1000)。
4Li + 3CO 2 → 2Li 2 CO 3 + C E＝2.8 V (1)
Taking a phase-change carbon capture system of a certain power plant as an example, the power consumption for capturing carbon dioxide is about 70 kWh/ton. If the lithium-carbon dioxide battery device is combined with the carbon capture system, captured carbon dioxide is used for generating electricity, the generated electric energy can not only completely cover the electricity consumption of the carbon capture system, but also store the residual electric quantity for use when the electric power is insufficient.
The operation method of the metal-carbon dioxide battery power system coupled with the carbon capture of the power plant provided by the embodiment of the invention comprises the following steps:
the carbon capture system 100 operates to capture carbon dioxide in the flue gas;
carbon dioxide is delivered to the negative electrode 210 of the metal-carbon dioxide cell 200, the metal-carbon dioxide cell 200 discharges, and electrical energy is delivered to the carbon capture system 100 for use, if there is excess electrical energy, the excess electrical energy is stored in the energy peaking system 300.
In some embodiments, a combination of the two techniques may also be used for peak shaving in the power system, where the power is sufficient, the energy peak shaving system 300 charges the metal-carbon dioxide cell 200, enables storage of excess power generation, and restores the ability of the metal-carbon dioxide cell 200 to consume carbon dioxide. The energy peak shaver system 300 can also supplement electric energy to the power grid, namely, power supplement when the electric power is insufficient. Therefore, the coupling of the two technologies can flexibly adjust the running state of the power generation system and promote the economy of the carbon capture system.
In some embodiments, carbon dioxide released by the metal-carbon dioxide cell 200 upon charging is stored. And when the metal-carbon dioxide battery 200 generates electricity, the stored carbon dioxide is transferred to the negative electrode 210 of the metal-carbon dioxide battery 200 to participate in an electrochemical reaction, so that the metal-carbon dioxide battery 200 generates electricity.
In summary, the metal-carbon dioxide battery power system coupled with the carbon capture of the power plant and the operation method thereof provided by the embodiment of the invention have the following technical effects:
1. the carbon capture system can effectively realize carbon dioxide emission reduction of the flue gas of the power plant so as to relieve the contradiction between fossil fuel utilization and carbon emission reduction.
2. The metal-carbon dioxide battery taking carbon dioxide as an energy carrier has the characteristics of carbon dioxide conversion and utilization and energy storage, and lays a foundation for simultaneously relieving energy and climate problems.
3. The carbon trapping system is coupled with the metal-carbon dioxide battery, so that carbon dioxide is effectively consumed and utilized, and generated electric energy can be transmitted back to the carbon trapping system to offset the electric power consumption in the trapping process.
4. The method can be used for energy peak shaving, and the generated residual electric energy can be stored for use when the electric power is insufficient; when the electric power is sufficient, the metal-carbon dioxide battery is charged to restore the capacity of absorbing carbon dioxide, and the released high-purity carbon dioxide can be used in subsequent industries and food industries.
In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present invention.
Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present invention, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise.
In the present invention, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; may be mechanically connected, may be electrically connected or may be in communication with each other; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances.
In the present invention, unless expressly stated or limited otherwise, a first feature "up" or "down" a second feature may be the first and second features in direct contact, or the first and second features in indirect contact via an intervening medium. Moreover, a first feature being "above," "over" and "on" a second feature may be a first feature being directly above or obliquely above the second feature, or simply indicating that the first feature is level higher than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely below the second feature, or simply indicating that the first feature is less level than the second feature.
For purposes of this disclosure, the terms "one embodiment," "some embodiments," "example," "a particular example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, the different embodiments or examples described in this specification and the features of the different embodiments or examples may be combined and combined by those skilled in the art without contradiction.
While embodiments of the present invention have been shown and described above, it will be understood that the above embodiments are illustrative and not to be construed as limiting the invention, and that variations, modifications, alternatives and variations may be made to the above embodiments by one of ordinary skill in the art within the scope of the invention.
Claims (10)
1. A metal-carbon dioxide battery power system coupled to a plant carbon capture, comprising:
the carbon capture system comprises an absorption tower and a regeneration tower, wherein the absorption tower is used for absorbing carbon dioxide in the flue gas to generate a rich solution, and the rich solution is input into the regeneration tower to be desorbed to generate carbon dioxide;
a metal-carbon dioxide cell having a negative electrode and a positive electrode, the carbon capture system in communication with the negative electrode, carbon dioxide being fed to the negative electrode as a feed gas to cause the metal-carbon dioxide cell to generate electricity, the metal-carbon dioxide cell generating electricity providing the carbon capture system with electrical energy required for system operation;
and the energy peak regulation system can store redundant electric energy of the metal-carbon dioxide battery and can charge the metal-carbon dioxide battery.
2. The metal-carbon dioxide battery power system coupled to plant carbon capture of claim 1, further comprising a carbon dioxide storage device coupled to the metal-carbon dioxide battery for storing carbon dioxide released by the metal-carbon dioxide battery upon charging.
3. The metal-carbon dioxide battery power system coupled to plant carbon capture of claim 1, wherein the energy peaking system is further capable of delivering stored electrical energy to a power grid for power replenishment.
4. The metal-carbon dioxide battery power system coupled to plant carbon capture of claim 1, further comprising a rich liquid pump for pumping rich liquid in the absorber tower and inputting to the regeneration tower, a lean liquid pump for pumping lean liquid in the regeneration tower and inputting to the absorber tower, the metal-carbon dioxide battery capable of powering the rich liquid pump and the lean liquid pump.
5. The metal-carbon dioxide battery power system coupled to plant carbon capture of claim 4, further comprising a lean rich liquid heat exchanger, the rich liquid pump outlet in communication with a cold side inlet of the lean rich liquid heat exchanger, a cold side outlet of the lean rich liquid heat exchanger in communication with an inlet of the regeneration tower, the lean liquid pump outlet in communication with a hot side inlet of the lean rich liquid heat exchanger, a hot side outlet of the lean rich liquid heat exchanger in communication with an inlet of the absorption tower.
6. The metal-carbon dioxide battery power system coupled with plant carbon capture of claim 1, wherein the metal-carbon dioxide battery is a lithium-carbon dioxide battery.
7. A method of operating a metal-carbon dioxide battery power system coupled to a plant carbon capture, wherein the power system is a metal-carbon dioxide battery power system coupled to a plant carbon capture according to any one of claims 1-6, the method of operating comprising:
the carbon trapping system is used for trapping carbon dioxide in the flue gas;
and delivering carbon dioxide to the cathode of the metal-carbon dioxide battery, discharging the metal-carbon dioxide battery, delivering electric energy to the carbon capture system for utilization, and storing the redundant electric energy in the energy peak shaving system if the redundant electric energy exists.
8. The method of operating a plant carbon capture coupled metal-carbon dioxide battery power system of claim 7, further comprising, when power is sufficient, the energy peaking system charging the metal-carbon dioxide battery and storing carbon dioxide released from the metal-carbon dioxide battery by a carbon dioxide storage device.
9. The method of operating a carbon capture coupled metal-carbon dioxide battery power system of claim 8, wherein carbon dioxide stored by a carbon dioxide storage device is transported to the metal-carbon dioxide battery negative electrode while the metal-carbon dioxide battery is generating electricity.
10. The method of operating a carbon capture coupled metal-carbon dioxide battery power system of a power plant of claim 7, further comprising, in the event of a power deficiency, the energy peaking system supplementing the power grid with electrical energy.
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