Apparatus and system for capturing carbon using chamber-type cell

Abstract

The present invention relates to an apparatus and a system for capturing carbon using a chamber-type cell. An apparatus and a system for capturing carbon using a chamber-type cell, according to one aspect of the present invention, comprises: a chamber including an outer wall, an inner wall, a metal fuel which is filled between the outer wall and the inner wall and in which a chemical reaction occurs, and a metal fuel circulation part through which the metal fuel circulates; an electrolyte filled in the chamber; and at least one air electrode disposed inside the chamber, in contact with the electrolyte, and configured to capture gas contained in air and cause a chemical reaction.

Description

Carbon capture device and system using chamber-type batteries

[0001] The present invention relates to a carbon capture device and system using a chamber-type battery, and more specifically, to a carbon capture device and system using a chamber-type battery capable of simultaneously capturing carbon dioxide and generating electricity.

[0002] Global awareness of the crisis surrounding global warming and the resulting climate change is growing. Greenhouse gases are being recognized as the primary cause of climate change, with carbon dioxide accounting for a significant portion. Countries around the world have declared carbon neutrality to reduce carbon emissions. Consequently, carbon capture and storage technologies are gaining attention as a means of reducing carbon emissions.

[0003] Among these, direct air capture (DAC) and carbon capture storage (CCS) technologies are being actively researched. DAC and CCS technologies capture carbon dioxide from the atmosphere and store it underground or dissolve it in the ocean for removal.

[0004] In underground carbon capture devices, exhaust gas is combined with an absorbent containing a solvent to separate carbon dioxide. Heat is then used to separate the carbon dioxide and solvent, and the carbon dioxide gas is compressed and transported for storage underground. Capturing and storing carbon dioxide requires significant investment, and in countries with limited land area, finding storage sites can be difficult. Furthermore, there is the risk of carbon dioxide leakage.

[0005] In the case of carbon capture devices that dissolve in the ocean, carbon dioxide is stored in marine sedimentary rock layers. The high pressure of the ocean causes the carbon dioxide stored there to become supercritical, almost liquid, and then dissolves into the ocean. However, because large quantities of carbon dioxide must be stored and transported from power plants and factories, significant technology is required and transportation costs are high.

[0006] Therefore, there is a need to develop a new concept of carbon capture device that can facilitate carbon dioxide capture, reduce the installation cost of the device, and utilize carbon compounds generated during the carbon dioxide capture process.

[0007] Meanwhile, the background technology described above is technical information that the inventor possessed for the purpose of deriving the present invention or acquired during the process of deriving the present invention, and cannot necessarily be said to be publicly known technology disclosed to the general public prior to the application for the present invention.

[0008] One embodiment of the present invention aims to provide a carbon capture device using a chamber-type battery that produces electricity during the carbon capture process and thus maximizes usability.

[0009] As a technical means for achieving the above-described technical task, according to one aspect of the present invention, a carbon capture device using a chamber-type battery includes an outer wall, an inner wall, a chamber filled between the outer wall and the inner wall, a metal fuel in which a chemical reaction occurs, and a metal fuel circulation section in which the metal fuel circulates, an electrolyte filled inside the chamber, and at least one air electrode arranged inside the chamber, in contact with the electrolyte, and configured to capture a gas contained in the air and cause a chemical reaction.

[0010] According to another aspect of the present invention, the inner wall may be characterized by having metal ion permeability.

[0011] According to another aspect of the present invention, the metal fuel may be a liquid metal.

[0012] According to another aspect of the present invention, the metal fuel may be a liquid transition metal.

[0013] According to another aspect of the present invention, the chamber may be characterized by further including an electrolyte circulation unit that circulates the electrolyte.

[0014] According to another aspect of the present invention, the air electrode may be in the form of a tube with an empty interior.

[0015] According to another aspect of the present invention, the air electrode may include a porous layer.

[0016] According to another aspect of the present invention, the air electrode may include at least one of a catalyst including carbon, an organic-inorganic composite material, and a metal electrode.

[0017] According to another aspect of the present invention, the air electrode can capture gas contained in the air and produce a carbon compound through a chemical reaction.

[0018] According to another aspect of the present invention, the chamber may further include a first wiring connected to the air electrode and a second wiring connected to the metal fuel.

[0019] As a technical means for achieving the above-described technical task, according to another aspect of the present invention, a carbon capture system includes a carbon capture device using a plurality of chamber-type cells that are interconnected, and each of the plurality of chamber-type carbon capture devices includes a chamber including an outer wall, an inner wall, a metal fuel filled between the outer wall and the inner wall, in which a chemical reaction occurs, and a metal fuel circulation section in which the metal fuel circulates, an electrolyte filled inside the chamber, and at least one air electrode arranged inside the chamber, in contact with the electrolyte, and configured to capture a gas contained in the air and cause a chemical reaction.

[0020] According to another aspect of the present invention, the metal fuel circulation unit of the carbon capture device using the plurality of chamber-type batteries may be characterized in that it is connected in series with the metal fuel circulation unit of another chamber-type carbon capture device adjacent thereto.

[0021] According to another aspect of the present invention, the metal fuel circulation unit of the carbon capture device using the plurality of chamber-type batteries may be connected in parallel with the metal fuel circulation unit of another adjacent chamber-type carbon capture device.

[0022] According to another aspect of the present invention, the carbon capture device using the plurality of chamber-type batteries may be characterized by further including an electrolyte circulation unit that circulates the electrolyte.

[0023] According to another aspect of the present invention, the electrolyte circulation unit of the carbon capture device using the plurality of chamber-type batteries may be connected in series with the electrolyte circulation unit of another adjacent chamber-type carbon capture device.

[0024] According to another aspect of the present invention, the electrolyte circulation unit of the carbon capture device using the plurality of chamber-type batteries may be connected in parallel with the electrolyte circulation unit of another adjacent chamber-type carbon capture device.

[0025] According to another aspect of the present invention, each of the electrolyte circulation units of the carbon capture device using the plurality of chamber-type batteries may be controlled to be independently stopped.

[0026] According to another aspect of the present invention, each of the plurality of chamber-type carbon capture devices may be characterized in that it is replaceable.

[0027] According to any one of the above-described problem solving means of the present invention, a carbon capture device using a chamber-type battery of one embodiment of the present invention has a feature in that the metal fuel and air electrode capture gas contained in the air and generate electricity through a chemical reaction, and since the gas contained in the air is captured and a chemical reaction is induced, carbon dioxide capture and electricity generation can be provided simultaneously.

[0028] In addition, according to one of the problem solving means of the present invention, in one embodiment of the present invention, the metal fuel may be composed of a liquid metal, and in this case, the surface area of ​​the metal fuel may be increased to supply efficient metal ions, thereby providing the effect of stably producing electricity.

[0029] In addition, according to one of the problem solving means of the present invention, one embodiment of the present invention can minimize the problem of carbon compounds generated due to a chemical reaction of gas captured at the electrode accumulating at the air electrode by having the electrolyte circulation unit circulate the electrolyte.

[0030] In addition, according to any one of the problem solving means of the present invention, one embodiment of the present invention can capture a larger amount of gas than a single air electrode by arranging a plurality of air electrodes at the upper part of the chamber, so that not only the carbon capture and processing amount, but also the electric energy production efficiency, current density, electrode efficiency, etc. can be increased.

[0031] In addition, according to any one of the problem solving means of the present invention, one embodiment of the present invention can provide an effect that allows easy maintenance and management of the carbon capture device by allowing the inner wall of the chamber and the air electrode to be replaced.

[0032] According to any one of the above-described problem solving means of the present invention, in one embodiment of the present invention, the metal fuel circulation unit and the electrolyte circulation unit of the carbon capture device are interconnected within the carbon capture system, so that the carbon capture device can be easily expanded and can provide the effect of producing a large amount of electricity.

[0033] In addition, according to any one of the problem solving means of the present invention, in one embodiment of the present invention, the metal fuel circulation section and the electrolyte circulation section of a plurality of chamber-type carbon capture devices are connected in series with each other within the carbon capture system, so that the configuration of the carbon capture system is simplified and the cost of constructing the carbon capture system is reduced.

[0034] In addition, according to any one of the problem solving means of the present invention, a plurality of chamber-type carbon capture devices in a carbon capture system of one embodiment of the present invention can provide an effect of being able to operate the carbon capture system stably by connecting each of the metal fuel circulation units and the electrolyte circulation units arranged in the plurality of carbon capture devices in parallel, so that even if any one of them breaks down, operation is possible except for the broken carbon capture device, thereby enabling the carbon capture system to operate stably.

[0035] In addition, according to one of the problem solving means of the present invention, one embodiment of the present invention connects a plurality of chamber-type carbon capture devices in a carbon capture system in parallel, thereby individually controlling the circulating metal fuel and electrolyte, thereby simultaneously providing carbon dioxide capture and electricity production with optimal performance.

[0036] The effects that can be obtained from the present invention are not limited to the effects mentioned above, and other effects not mentioned can be clearly understood by a person having ordinary skill in the art to which the present invention belongs from the description below.

[0037] Figure 1 is a perspective view of a carbon capture device using a chamber-type battery according to one embodiment of the present invention.

[0038] Figure 2 is a cross-sectional view taken along line II-II' of Figure 1.

[0039] Figure 3 is a cross-sectional view of a carbon capture system according to one embodiment of the present invention.

[0040] Figure 4 is a cross-sectional view of a carbon capture system according to another embodiment of the present invention.

[0041] Below, with reference to the attached drawings, embodiments of the present invention are described in detail so that those skilled in the art can easily implement them. However, the present invention may be implemented in various different forms and is not limited to the embodiments described herein. In the drawings, irrelevant parts have been omitted for clarity of description, and similar reference numerals have been used throughout the specification to indicate similar elements.

[0042] Throughout the specification, when a part is said to be "connected" to another part, this includes not only "directly connected" but also "indirectly connected" with other elements or components intervening between them. Furthermore, when a part is said to "include" a component, this does not exclude other components, but rather includes other components, unless otherwise specifically stated.

[0043] The present invention will be described in detail with reference to the attached drawings below.

[0044] Fig. 1 is a perspective view of a carbon capture device using a chamber-type battery according to one embodiment of the present invention. Fig. 2 is a cross-sectional view taken along line II-II' of Fig. 1.

[0045] The carbon capture device using a chamber-type battery of the present invention is configured with components inserted into a chamber, and is a device capable of capturing carbon dioxide and generating electricity at the same time.

[0046] Referring to FIGS. 1 and 2, a carbon capture device (10) according to one embodiment of the present invention includes a chamber (1100), an electrolyte (1200), and an air electrode (1300).

[0047] The chamber (1100) forms the outer shape of the carbon capture device (10) and is configured to store components of the carbon capture device (10).

[0048] The chamber (1100) includes an outer wall (1110), an inner wall (1120), a metal fuel (1130), and a metal fuel circulation section (1140).

[0049] As illustrated in FIG. 1, the chamber (1100) may be configured in a cylindrical shape with an empty interior. However, the present invention is not limited thereto, and the chamber (1100) may be configured in various shapes, such as a hexahedron, a sphere, a pyramid shape, a cone shape, and the like. In addition, the chamber (1100) may be configured in various shapes, such as a curved shape other than a columnar shape or a trapezoidal shape, to suit the space in which it is installed.

[0050] The outer wall (1110) of the chamber (1100) supports the structure of the carbon capture device (10) and includes a metal fuel circulation unit (1140) for circulating metal fuel (1130) between the outer wall (1110) and the inner wall (1120).

[0051] The outer wall (1110) of the chamber (1100) has a shape corresponding to the outer shape of the chamber (1100) and is connected to the metal fuel circulation unit (1140). Specifically, the through hole of the metal fuel circulation unit (1140) is connected to the inner surface of the outer wall (1110), so that the metal fuel (1130) circulated through the metal fuel circulation unit (1140) is supplied and discharged between the outer wall (1110) and the inner wall (1120) of the chamber (1100).

[0052] The outer wall (1110) of the chamber (1100) may be made of a corrosion-resistant material that is easy to form and is not corroded by the metal fuel (1130). For example, the outer wall (1110) of the chamber (1100) may be made of stainless steel, titanium (TI), aluminum oxide (Al2O3), copper oxide (CuO), plastic, acrylic, etc.

[0053] The inner wall (1120) of the chamber (1100) is an electrolyte separator, which can allow metal ions supplied from the metal fuel (1130) to pass through the electrolyte (1200).

[0054] The inner wall (1120) of the chamber (1100) may be configured in the same shape as the outer wall (1110). For example, it may be configured in a cylindrical shape that forms a concentric structure with the outer wall (1110) on a plane. A space is provided between the inner wall (1120) and the outer wall (1110), and the metal fuel (1130) may be filled inside the space. In addition, the inner space of the inner wall (1120) may be filled with an electrolyte (1200), and the inner wall (1120) may be configured to prevent the metal fuel (1130) and the electrolyte (1200) from mixing, and to allow only metal ions to pass through the inner wall (1120).

[0055] The inner wall (1120) of the chamber (1100) may be a membrane made of a material that allows only the metal ions of the metal fuel (1130) to pass through while not allowing the metal fuel (1130) to pass through. Specifically, the material and form that may be used for the inner wall (1120) may include, for example, at least one of a polymer membrane, a membrane membrane, an inorganic membrane, a composite membrane, and an ion-permeable membrane. This is merely an example, and the material and form that may be used for the inner wall (1120) are not limited thereto. The inner wall (1120) may also be integrated with the electrolyte (1200) as needed.

[0056] Metal fuel (1130) is filled in the space provided between the outer wall (1110) and the inner wall (1120) of the chamber (1100).

[0057] Metal fuel (1130) is moved from the metal fuel circulation unit (1140), and a chemical reaction occurs within the chamber (1100) to generate metal ions and transfer the metal ions to the inner wall (1120).

[0058] The metal fuel (1130) circulating in the chamber (1100) may include at least one of transition metals such as lithium (Li), sodium (Na), potassium (K), rubidium (Rb), cesium (Cs), francium (Fr), beryllium (Be), magnesium (Mg), calcium (Ca), strontium (Sr), barium (Ba), and radium (Ra).

[0059] The metal fuel (1130) may take various forms, including liquid or fluidized gas. Specifically, a liquid or fluidized gas containing a metal salt formed by ionic bonds, such as chloride, hydroxide, or carbonate, may be used. Preferably, the metal fuel (1130) generates metal ions through a chemical reaction and can be supplied to the electrolyte (1200) by penetrating the inner wall (1120).

[0060] The metal fuel circulation unit (1140) is arranged outside the outer wall (1110) and can circulate and discharge the metal fuel (1130) between the outer wall (1110) and the inner wall (1120) inside the chamber (1100). Specifically, two or more metal fuel circulation units (1140) are arranged on the outer wall (1110) of the chamber (1100) and are spaced apart from each other. In this case, the metal fuel (1130) can be supplied through one of the two or more metal fuel circulation units (1140), and the remaining metal fuel (1130) can be discharged through another metal fuel circulation unit (1140).

[0061] The electrolyte (1200) is placed in a filled form inside the chamber (1100).

[0062] The electrolyte (1200) can transfer metal ions that have penetrated through the inner wall (1120) to the air electrode (1300). The transferred metal ions produce carbon compounds through a chemical reaction with gas captured in the air by the air electrode (1300), and the electrolyte (1200) discharges the produced carbon compounds out of the chamber (1100).

[0063] The carbon compound produced at the air electrode (1300) is a metal carbonate (M a (CO3) b ) may be included. Meanwhile, in addition to metal carbonates, carbon compounds may include C1 compounds composed of one carbon atom, such as carbon monoxide (CO), formic acid (HCOOH), and formaldehyde (CH2O), and C2 compounds composed of two carbon atoms, such as ethylene (C2H4) and ethanol (C2H5OH). In addition to the above examples, organic compounds containing carbon atoms may be produced as carbon capture products.

[0064] Metal carbonate, which is one of the carbon compounds produced in the present invention, is an important mineral resource or chemical material and can be reprocessed or used for industrial purposes, or the metal carbonate can be reprocessed and reused as a metal fuel (1130) of a carbon capture device (10) according to an embodiment of the present invention.

[0065] The electrolyte (1200) may be a material capable of transmitting metal ions that have permeated through the inner wall (1120). More specifically, the organic electrolyte that can be used in the present invention may include one or more of the following materials, but is not limited to the examples below.

[0066] Types of cyclic carbonates: ethylene carbonate (EC), propylene carbonate (PC), butylene carbonate (BC), vinylethylene carbonate (VEC), etc.

[0067] Chain carbonate types: ethylene carbonate, propylene carbonate, dimethyl carbonate, ethylmethyl carbonate, diethyl carbonate, etc.

[0068] Ether substances: 1,2-dimethoxyethane, 1,3-dioxolane, diethylene glycol dimethyl ether, tetraethylene glycol dimethyl ether, dibutyl ether, tetraglyme, diglyme, dimethoxyethane, 2-methyltetrahydrofuran, tetrahydrofuran, etc.

[0069] Ester substances: methyl acetate, acetate, n-propyl acetate, dimethyl acetate, methyl propionate, ethyl propionate, γ-butyrolactone, decanolide, valerolactone, mevalonolactone, caprolactone, etc.

[0070] Alcohol-based substances: methyl alcohol, ethyl alcohol, isopropyl alcohol, etc.

[0071] Amine substance: A liquid ammonium substance selected from the group consisting of ethylenediamine, propylenediamine, methylenediamine, ethylamine, 1,2-dimethoxyethane, hexamethyleneimine, di-isopropylamide, di-ethanolamine, oliethyleneamine, and combinations thereof, or a solvated electron selected from the group consisting of ethylenediaminetetraacetic acid, diethylenetriaminepentaacetic acid, diaminohydroxypropanetetraacetic acid, and combinations thereof, or a solvated electron selected from the group consisting of terahydrofuran, dimethylsulfoxide, hexamethylphosphoramide, diethylamine, triethylamine, diethylenetriamine, toluene diamine, m-phenylenediamine, diphenylmethanediamine, hexamethylenediamine, triethylenetetramine, tetraethylenepentaamine, hexamethylenetetramine, ethanolamine, diethanolamine, triethanolamine, and combinations thereof Containing liquid amines capable of forming electrons, etc.

[0072] Other substances: pyrrolidinium, alkyl ammonium, piperidinium, imidazolium, dimethyl sulfoxide, pyridinium, imidazolium, pyrrolidinium, ammonium, phosphonium, sulphonium, 1,2-dioxolane, sulfolane, methyl sulfolane, 1,3-dimethyl-2-imidazolidinone, N-methyl-2-pyrrolidinone, formamide, dimethylformamide, acetonitrile, nitromethane, trimethyl phosphate, triethyl phosphate, trioctyl phosphate, phosphoric acid triester fluoroethylene carbonate (FEC), 4,5-difluoroethylene carbonate, 4,4-difluoroethylene carbonate, 4,4,5-trifluoroethylene carbonate, 4,4,5,5-tetrafluoroethylene carbonate, 4-fluoro-5-methylethylene carbonate, 4-fluoro-4-methylethylene carbonate, 4,5-difluoro-4-methylethylene carbonate, 4,4,5-trifluoro-5-methylethylene carbonate, trifluoromethylethylene carbonate, etc.

[0073] The aqueous electrolyte that can be used in the embodiments of the present invention may include one or more of the following materials, but is not limited to the examples below.

[0074] M a (CO3) b Carbonate series including

[0075] M a (OH) b Hydroxide series including

[0076] M a O b Oxide series including

[0077] M a X bA series containing halogen elements such as fluorine (F), chlorine (Cl), bromine (Br), iodine (I), astatine (At), and tennessine (Ts).

[0078] Other, metal (M) cations and ionic bonding anions (BF4, CN, PF6, AsF6, N(CN)2, SbF6, AlCl4, HSO4, ClO4, SO4, CF3SO3, CF3CO2, (C2F5SO2)(CF3SO2)N, NO3, Al2Cl7, CH3COO, CH3SO3, TFSi, (CF3SO2)3C, (CF3CF2SO2)2N, (CF3SO2)2N, (FSO2)2N, (CF3)2PF4, (CF3)3PF3, (CF3)4PF2, (CF3)5PF, (CF3)6P, SF5CF2SO3, SF5CHFCF2SO3, CF3CF2(CF3)2CO, (CF3SO2)2CH, (SF5)3C, (C2F5SO2)(CF3SO2)N and ionic substances including (O(CF3)2C2(CF3)2O)2PO, etc.)

[0079] Here, M refers to a metal used as fuel for the battery of the present invention, and may include any one of transition metals such as lithium, sodium, potassium, rubidium, cesium, francium, beryllium, magnesium, calcium, strontium, barium, and radium, or aluminum, tin, manganese, copper, lead, silver, nickel, cadmium, or iron.

[0080] Meanwhile, the electrolyte circulation unit (1210) is arranged on the upper lid of the chamber (1100) and can circulate and discharge the electrolyte (1200) between the inner wall (1120) of the chamber (1100) and the air electrode (1300). Specifically, two or more electrolyte circulation units (1210) are arranged on the upper lid of the chamber (1100) and are spaced apart from each other. In this case, the electrolyte (1200) can be supplied through the electrolyte circulation unit (1140) and discharged through another electrolyte circulation unit (1140).

[0081] The air electrode (1300) can capture gas contained in the air and cause a chemical reaction to produce a carbon compound.

[0082] The air electrode (1300) is positioned inside the chamber (1100) by penetrating the upper portion of the chamber (1100), and may be configured in the form of a tube with an empty interior and a closed lower portion, and may be configured in a structure in which air is introduced from the outside and flows into the interior of the tube. In some embodiments, the air electrode (1300) may be configured in a porous structure. In this case, the surface area through which metal ions and various gases captured in the air can come into contact with the air electrode (1300) is increased, and the efficiency of chemical reactions between the metal ions and various gases can be improved.

[0083] The air electrode (1300) may be made of at least one material selected from the group consisting of a carbon electrode, a graphite electrode, a metal-carbon composite electrode, a nanomaterial electrode, a catalyst composite electrode, a catalyst electrode, a semiconducting electrode, a polymer electrode, a metal mesh-type electrode, an organic / inorganic composite electrode, a liquid-type electrode, a transition metal dichalcogenides (TMD) electrode, a graphene electrode, a carbon nanotube (CNT) electrode, and an oxide metal species electrode, and may have characteristics of chemical resistance and corrosion resistance. In addition, the surface of the air electrode (1300) may be coated entirely or partially with at least one material such as carbon, conductivity, and a catalyst.

[0084] Air electrodes (1300) may be arranged in multiples on the upper portion of the chamber (1100). Specifically, multiple air electrodes (1300) can supply a larger amount of gas than a single air electrode (1300), thereby increasing the amount of chemical reaction between metal ions and captured gas, thereby increasing not only carbon capture and processing capacity but also electrical energy production efficiency, current density, electrode efficiency, etc.

[0085] The first wiring (1310) is connected to the air electrode (1300), and the second wiring (1131) can be connected between the outer wall (1110) and the inner wall (1120) by penetrating the upper part of the chamber (1100).

[0086] The first wiring (1310) and the second wiring (1131) can provide electricity generated by the chemical reaction in the chamber (1100) to at least one of a power storage device such as a battery and an external system used for electricity.

[0087] Referring to FIG. 2, the electricity generation mechanism and carbon dioxide capture mechanism of the carbon capture device (10) using the chamber-type battery of the present invention will be described.

[0088] Referring to Figure 2, a chemical reaction first occurs in the metal fuel (1130). Here, the chemical reaction includes various reactions, including redox reactions, and encompasses all reactions that produce charged particles as a result of the reaction. The following description will focus on a redox reaction as an example.

[0089] For example, metal fuel (1130) generates metal ions as a result of a redox reaction. Thereafter, the generated metal ions pass through the inner wall (1120) that allows only the metal ions to pass through, and are transferred to the air electrode (1300) by the electrolyte (1200). The transferred metal ions undergo redox reactions with various gases captured in the air.

[0090] Additionally, external air containing carbon dioxide is introduced into the tube of the air electrode (1300). Among the various gases captured in the air at the air electrode (1300), carbon dioxide undergoes a redox reaction with metal ions transferred by the electrolyte (1200) to produce a carbon compound, and electrons are released in the process.

[0091] As a result, metal ions and electrons are generated by the chemical reaction between the metal raw material (1130) and the captured gas, and move through the first wiring (1310) and the second wiring (1131) to generate electricity.

[0092] Meanwhile, the metal raw material (1130) is continuously consumed as metal atoms of the metal raw material (1130) are transferred to the inner wall (1120) through a redox reaction. In addition, the metal raw material (1130) is continuously supplied through the metal raw material circulation unit (1140).

[0093] In addition, carbon compounds are generated through a chemical reaction between metal ions at the air electrode (1300) and the gas introduced through the air electrode (1300). Here, the chemical reaction includes various reactions including redox reactions, and includes all reactions in which carbon compounds are generated as a result of the reaction. Hereinafter, the generation of carbon compounds through a redox reaction between a metal fuel and carbon dioxide will be described as an example.

[0094] For example, carbon dioxide contained in the air comes into contact with the inside of the air electrode (1300) tube, and the contacted carbon dioxide is generated as a carbon compound through a redox reaction with metal ions transferred from the electrolyte (1200).

[0095] The generated carbon compounds can be discharged through the electrolyte (1200), and the discharged carbon compounds can be stored or reprocessed for industrial use and utilized as important mineral resources.

[0096] As described above, the carbon capture device (10) using a chamber-type battery of the present invention is composed of a metal fuel (1130) filled between the outer wall (1110) and the inner wall (1120) of the chamber (1100), an electrolyte (1200) filled inside the chamber (1100), and an air electrode (1300). Here, the air electrode (1300) captures gas contained in the air and causes a chemical reaction to produce a carbon compound, and the metal ions generated by the chemical reaction of the metal fuel (1130) pass through the inner wall (1120) and the electrolyte (1200) of the chamber (1100) to induce a chemical reaction of the air electrode (1300), thereby generating electricity. Thus, a carbon capture device (10) in which carbon dioxide capture and electricity production can occur simultaneously can be provided.

[0097] In addition, the metal fuel circulation unit (1140) of the carbon capture device (10) using a chamber-type battery of the present invention circulates the metal fuel (1130), and the circulated metal fuel (1130) undergoes an oxidation-reduction reaction to generate metal ions and supplies them to the inner wall (1120). That is, the metal fuel (1130) is continuously supplied through the metal fuel circulation unit (1140), and the residue that has lost the metal ions is continuously discharged through the metal fuel circulation unit (1140). Since the metal fuel (1130) is continuously circulated, continuous electricity production is possible.

[0098] The electrolyte (1200) of the carbon capture device (10) using a chamber-type battery of the present invention is composed of a material capable of transferring metal ions, and is circulated in a form filled inside the chamber (1100) by the electrolyte circulation unit (1210). The metal ions transferred by the electrolyte (1200) chemically react with various gases captured in the air to produce metal carbonate, which is a carbon compound.

[0099] The generated carbon compounds may accumulate on the air electrode (1300). The carbon compounds accumulated on the air electrode (1300) may reduce the contact area between various gases and metal ions captured in the air, thereby interfering with chemical reactions and making it difficult for the electrode to perform its function. However, since the carbon capture device (10) using the chamber-type battery of the present invention is configured to circulate the electrolyte (1200) through the electrolyte circulation unit (1210), the generated carbon compounds may be discharged outside the chamber (1100), thereby minimizing a decrease in electricity production efficiency.

[0100] Accordingly, the circulating metal fuel (1130) and electrolyte (1200) provide an effect of increasing chemical reactions, and the chemical reactions of the metal fuel (1130) and the captured gas increase, thereby providing an advantage of increasing the amount of electricity produced.

[0101] In addition, the air electrode (1300) of the carbon capture device (10) using the chamber-type battery of the invention is composed of a material including at least one of a catalyst containing carbon, an organic-inorganic composite material, and a metal electrode, and is configured in a tube shape with an empty interior. Specifically, by using a material with excellent ion conductivity as the material of the air electrode (1300), it is possible to provide the advantage of increasing the efficiency of chemical reactions between metal ions and various gases captured in the air.

[0102] In addition, the air electrode (1300) includes a porous layer, which provides the advantage of increasing the surface area of ​​the air electrode (1300), thereby providing the advantage of improving the efficiency of the chemical reaction of metal ions and captured gas.

[0103] In addition, the inner wall (1120) of the chamber (1100) and the air electrode (1300) of the carbon capture device (10) using the chamber-type battery of the invention are configured to have a replaceable structure. Specifically, since the inner wall (1120) of the chamber (1100) and the air electrode (1300) move with the electrolyte (1200) and carbon compounds, the performance of the inner wall (1120) and the air electrode (1300) may be reduced by blocking the surface of the inner wall (1120) and the air electrode (1300) or by scratching them. However, since the inner wall (1120) and the air electrode (1300) of the carbon capture device (10) using the chamber-type battery of the present invention are configured to be replaceable, the inner wall (1120) or the air electrode (1300) with reduced performance can be separated to provide an effect of facilitating maintenance and management of the carbon capture device (10), such as repair, cleaning, and parts replacement.

[0104] Figure 3 is a cross-sectional view of a carbon capture system according to one embodiment of the present invention.

[0105] Referring to FIG. 3, a carbon capture system (300) according to an embodiment of the present invention is composed of a first chamber-type carbon capture device (10), a second chamber-type carbon capture device (20), and a third chamber-type carbon capture device (30). Although FIG. 3 illustrates a carbon capture system (300) including three chamber-type carbon capture devices (10, 20, 30), the carbon capture system (300) of the present invention may be composed of more than three carbon capture devices (10, 20, 30), or may be composed of less than three (i.e., two) carbon capture devices (10, 20, 30).

[0106] Meanwhile, each of the chamber-type carbon capture devices (10, 20, 30) includes a metal fuel (3130) filled between the outer wall (3110) and the inner wall (3120) of the chamber (3100), an electrolyte (3200) filled inside the chamber (3100), and an air electrode (3300). Since each of the chamber-type carbon capture devices (10, 20, 30) of the carbon capture system (300) of the present invention is substantially the same as the chamber-type carbon capture device (10) described with reference to FIGS. 1 and 2, a detailed description of each configuration will be omitted.

[0107] The carbon capture system (300) of the present invention has a first chamber-type carbon capture device (10), a second chamber-type carbon capture device (20), and a third chamber-type carbon capture device (30) in which the metal fuel circulation section (3140) or the electrolyte circulation section (3210) are connected in series with each other.

[0108] Specifically, the metal fuel circulation unit (3140) of the first chamber type carbon capture device (10) is connected to the metal fuel circulation unit (3140) of the second chamber type carbon capture device (20), and the metal fuel circulation unit (3140) of the second chamber type carbon capture device (20) is connected to the metal fuel circulation unit (3140) of the third chamber type carbon capture device (30).

[0109] Metal fuel (3130) is injected into the first carbon capture device (10) by a metal fuel circulation unit (3140) connected in series, and is circulated to the second carbon capture device (20) and the third carbon capture device (30) or in the opposite direction.

[0110] In addition, the electrolyte circulation unit (3210) of the first chamber type carbon capture device (10) is connected to the electrolyte circulation unit (3210) of the second chamber type carbon capture device (20), and the electrolyte circulation unit (3210) of the second chamber type carbon capture device (20) is connected to the electrolyte circulation unit (3210) of the third chamber type carbon capture device (30).

[0111] The electrolyte (3200) is injected into the first carbon capture device (10) by a series-connected electrolyte circulation unit (3210) and is circulated to the second carbon capture device (20) and the third carbon capture device (30) or in the opposite direction.

[0112] As described above, the carbon capture system (300) of the present invention can continuously circulate the metal fuel (3130) or the electrolyte (3200) because the metal fuel circulation unit (3140) or the electrolyte circulation unit (3210) of the chamber-type carbon capture device (10, 20, 30) is connected in series with each other, thereby increasing the chemical reaction amount of the metal fuel (3130) and the chemical reaction amount of the air electrode (3300), and producing a large amount of electricity generated by the chemical reaction of the metal raw material (3130) and the air electrode (3300).

[0113] In addition, when each of the arranged metal fuel circulation units (3140) or electrolyte circulation units (3210) is connected in series with each other, the injection and discharge of the metal fuel (1130) can be performed through one pipe, and the supply of the electrolyte (1200) and the discharge of the carbon compound can be performed through one pipe, so that the configuration of the carbon capture system (300) can be simplified and the cost of constructing the carbon capture system can be reduced.

[0114] Figure 4 is a cross-sectional view of a carbon capture system according to another embodiment of the present invention.

[0115] Referring to FIG. 4, a carbon capture system (400) according to one embodiment of the present invention is composed of a first chamber-type carbon capture device (10), a second chamber-type carbon capture device (20), and a third chamber-type carbon capture device (30). Although FIG. 4 illustrates a carbon capture system (400) including three chamber-type carbon capture devices (10, 20, 30), the carbon capture system (400) of the present invention may be composed of more than three carbon capture devices (10, 20, 30), or may be composed of less than three (i.e., two) carbon capture devices (10, 20, 30).

[0116] Meanwhile, each of the chamber-type carbon capture devices (10, 20, 30) includes a metal fuel (4130) filled between the outer wall (4110) and the inner wall (4120) of the chamber (4100), an electrolyte (4200) filled inside the chamber (4100), and an air electrode (4300). Since each of the chamber-type carbon capture devices (10, 20, 30) of the carbon capture system (400) of the present invention is substantially the same as the chamber-type carbon capture device (10) described with reference to FIGS. 1 and 2, a detailed description of each configuration will be omitted.

[0117] The carbon capture system (400) of the present invention has a first chamber-type carbon capture device (10), a second chamber-type carbon capture device (20), and a third chamber-type carbon capture device (30) in which the metal fuel circulation section (4140) or the electrolyte circulation section (4210) are connected in parallel to each other.

[0118] Specifically, the metal fuel supply unit (4141) of the carbon capture system (400) is arranged and connected to the metal fuel supply units (4141) of each chamber-type carbon capture device (10, 20, 30) to form a parallel structure. The metal fuel supply unit (4141) in a parallel structure can supply metal fuel (4130) to each chamber-type carbon capture device (10, 20, 30).

[0119] Additionally, the metal fuel (4130) circulated in each chamber-type carbon capture device (10, 20, 30) can be discharged to the outside through the metal fuel discharge unit (4142).

[0120] In addition, the electrolyte supply unit (4211) of the carbon capture system (400) is arranged and connected to the electrolyte supply units (4211) of each chamber-type carbon capture device (10, 20, 30) to form a parallel structure. The electrolyte supply unit (4211) in a parallel structure can supply electrolyte (4200) to each chamber-type carbon capture device (10, 20, 30).

[0121] Additionally, the electrolyte (4200) circulated in each chamber-type carbon capture device (10, 20, 30) can be discharged to the outside through the electrolyte discharge unit (4212).

[0122] As described above, the carbon capture system (400) of the present invention can continuously circulate the metal fuel (4130) and the electrolyte (4200) since the metal fuel circulation unit (4140) and the electrolyte circulation unit (4210) of the chamber-type carbon capture device (10, 20, 30) are connected in parallel, and a valve is formed at the front end of each supply unit to provide the effect of controlling the amount of metal fuel and electrolyte supplied to each chamber.

[0123] In addition, by connecting the metal fuel circulation unit (4140) and the electrolyte circulation unit (4210) in parallel and forming a valve at the front end of each supply unit, the circulated metal fuel (4130) and electrolyte (4200) can be circulated with the same performance, so that the carbon capture system (400) can simultaneously provide carbon dioxide capture and electricity production with optimal performance.

[0124] In addition, each of the parallel-connected electrolyte circulation units (4210) according to one embodiment of the present invention can be controlled to stop independently of each other, thereby facilitating the process of replacing the electrolyte or purifying the accumulated metal carbonate in the electrolyte. Specifically, the valve in front of the supply unit can be closed to stop one of the carbon capture devices (10, 20, 30) while replacing the electrolyte or purifying the metal carbonate in the electrolyte. In particular, during this process, the electrolyte circulation units (4210) of the other carbon capture devices (10, 20, 30) except for the stopped carbon capture device (10, 20, 30) can operate normally, thereby enabling the continuous operation of the carbon capture system (400).

[0125] In addition, since the carbon capture system (400) according to one embodiment of the present invention is configured in a parallel structure, even if any one of the carbon capture devices (10, 20, 30) constituting the carbon capture system (400) breaks down, it can provide an advantage in that the carbon capture system (400) can be operated using a carbon capture device (10, 20, 30) that is operable, excluding the broken carbon capture device (10, 20, 30).

[0126] The foregoing description of the present invention is provided for illustrative purposes only, and those skilled in the art will readily appreciate that the present invention can be readily modified into other specific forms without altering the technical spirit or essential characteristics of the present invention. Therefore, the embodiments described above should be understood as illustrative in all respects and not restrictive. For example, components described as being single may be implemented in a distributed manner, and similarly, components described as being distributed may be implemented in a combined manner.

[0127] The scope of the present invention is indicated by the claims described below rather than the detailed description above, and all changes or modifications derived from the meaning and scope of the claims and their equivalent concepts should be interpreted as being included in the scope of the present invention.

[0128] The present invention can be applied to direct air capture (DAC) and carbon capture storage (CCS) technologies. Preferably, it can be applied to direct air capture. The present invention can be provided and utilized in a system format for businesses seeking to secure carbon credits, or it can be used industrially to sell carbon credits based on the carbon dioxide captured through the present invention.

Claims

1. A chamber including an outer wall, an inner wall, a metal fuel filled between the outer wall and the inner wall, in which a chemical reaction occurs, and a metal fuel circulation section in which the metal fuel circulates; An electrolyte filled inside the chamber; and At least one air electrode disposed inside the chamber, in contact with the electrolyte, and configured to capture gas contained in the air and cause a chemical reaction, Carbon capture device using a chamber-type battery.

2. In paragraph 1, The inner wall is characterized by having metal ion permeability. Carbon capture device using a chamber-type battery.

3. In paragraph 1, The above metal fuel is characterized in that it is a liquid transition metal. Carbon capture device using a chamber-type battery.

4. In paragraph 1, The above chamber, Characterized in that it further includes an electrolyte circulation unit that circulates the electrolyte. Carbon capture device using a chamber-type battery.

5. In paragraph 1, The above air electrode is a tube-shaped structure having a porous layer and an empty interior. Carbon capture device using a chamber-type battery.

6. In paragraph 5, The air electrode is characterized in that it includes at least one of a catalyst containing carbon, an organic-inorganic composite material, and a metal electrode. Carbon capture device using a chamber-type battery.

7. In paragraph 1, The above chamber, a first wiring connected to the air electrode; and Further comprising a second wiring connected to the metal fuel, Carbon capture device using a chamber-type battery.

8. Including a plurality of interconnected chamber-type carbon capture devices, Each of the above multiple chamber-type carbon capture devices, A chamber including an outer wall, an inner wall, a metal fuel filled between the outer wall and the inner wall, in which a chemical reaction occurs, and a metal fuel circulation section in which the metal fuel circulates; An electrolyte filled inside the chamber; and At least one air electrode disposed inside the chamber, in contact with the electrolyte, and configured to capture gas contained in the air and cause a chemical reaction, Carbon capture system.

9. In paragraph 8, The metal fuel circulation unit of the above multiple chamber type carbon capture device is characterized in that it is connected in series with the metal fuel circulation unit of another adjacent chamber type carbon capture device. Carbon capture system.

10. In paragraph 8, The metal fuel circulation unit of the above multiple chamber type carbon capture device is characterized in that it is connected in parallel with the metal fuel circulation unit of another adjacent chamber type carbon capture device. Carbon capture system.

11. In paragraph 8, The above multiple chamber type carbon capture device, Characterized in that it further includes an electrolyte circulation unit that circulates the electrolyte. Carbon capture system.

12. In paragraph 11, The electrolyte circulation unit of the above multiple chamber type carbon capture device is characterized in that it is connected in series with the electrolyte circulation unit of another adjacent chamber type carbon capture device. Carbon capture system.

13. In paragraph 11, The electrolyte circulation unit of the above multiple chamber type carbon capture device is characterized in that it is connected in parallel with the electrolyte circulation unit of another adjacent chamber type carbon capture device. Carbon capture system.

14. In paragraph 13, The electrolyte circulation section of each of the plurality of chamber-type carbon capture devices is controlled to be independently stopped. Carbon capture system.

15. In paragraph 13, Each of the above multiple chamber-type carbon capture devices is characterized in that it is replaceable. Carbon capture system.

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