Carbon dioxide capture system

Abstract

One embodiment of the present invention provides a carbon dioxide capture system including: an absorption module for forming a rich solution by mixing carbon dioxide gas and an absorbent and discharging the formed rich solution; and a regeneration module for receiving the discharged rich solution and regenerating carbon dioxide from the rich solution, wherein at least one of the absorption module and the regeneration module includes a rotating structure.

Description

carbon dioxide capture system

[0001] The present invention relates to a carbon dioxide capture system.

[0002]

[0003] To reduce carbon dioxide, an acidic gas found in exhaust gases, numerous technologies are being developed, including chemical absorption, adsorption, membrane separation, and deep-freezing. Among these, chemical absorption, which uses an absorbent liquid to absorb and capture carbon dioxide, is widely used due to its relatively high efficiency and stable process.

[0004] At this time, the chemical absorption method used a process of dissolving carbon dioxide in a solvent or solution (absorbent) at a first location to combine the carbon dioxide and the absorbent, then moving the solvent or solution containing the dissolved carbon dioxide to a second location, and then separating the carbon dioxide and the solvent or solution at that location.

[0005] However, conventional carbon dioxide capture systems typically require large-scale facilities, such as towers that are tens of meters or more tall. Furthermore, the carbon dioxide absorption process often suffers from insufficient dissolution within the absorbent. Furthermore, when separating carbon dioxide from the absorbent, the solution fails to sufficiently evaporate, resulting in reduced process efficiency as the carbon dioxide absorption process is repeated.

[0006] Accordingly, there is a need for a carbon dioxide capture system that can capture carbon dioxide with high efficiency even on a small scale.

[0007]

[0008] The technical task of the present invention is to provide a carbon dioxide capture system that can be used stably in environments such as ships through miniaturization.

[0009] In addition, the technical problem to be achieved by the present invention is to provide a carbon dioxide capture regeneration module that can be operated at a lower temperature and has improved regeneration efficiency during the process of regenerating a solution containing dissolved carbon dioxide.

[0010] The technical problems to be solved by the present invention are not limited to the technical problems mentioned above, and other technical problems not mentioned can be clearly understood by a person having ordinary skill in the technical field to which the present invention belongs from the description below.

[0011]

[0012] In order to achieve the above technical task, one embodiment of the present invention provides a carbon dioxide capture system, comprising: an absorption module that forms a rich solution by mixing carbon dioxide gas and an absorbent, and discharges the formed rich solution; a regeneration module that receives the discharged rich solution and regenerates carbon dioxide from the rich solution, and at least one of the absorption module and the regeneration module comprises a rotating structure.

[0013] In addition, one embodiment of the present invention may be a carbon dioxide capture system that further includes an oxygen remover that removes oxygen within the absorbent.

[0014] In addition, one embodiment of the present invention may be a carbon dioxide capture system in which the carbon dioxide capture system further includes a heat exchanger, the rich solution discharged from the absorption module is transferred to one area of ​​the heat exchanger, and a portion of the absorbent discharged from the regeneration module is transferred to one area of ​​the heat exchanger, so that heat exchange occurs between the rich solution discharged from the absorption module and the absorbent discharged from the regeneration module.

[0015] In addition, one embodiment of the present invention may be a carbon dioxide capture system in which the absorption module includes an absorption outer housing; an absorption rotating body disposed in an area inside the absorption outer housing and rotating within the absorption outer housing, and the absorption rotating body has at least one absorption penetration hole (150) disposed along the outer surface of the absorption rotating body.

[0016] In addition, one embodiment of the present invention may be a carbon dioxide capture system in which the regeneration module includes a regeneration unit and a heating unit, the regeneration unit has a rich solution delivered therein, the carbon dioxide is separated from at least a portion of the rich solution, the heating unit is disposed in one area of ​​the regeneration unit, the rich solution is delivered from the regeneration unit, and the carbon dioxide is captured by the heating unit.

[0017] In addition, one embodiment of the present invention may be a carbon dioxide capture system in which the heating unit includes an ultrasonic irradiation unit that is arranged in an area within the heating unit and irradiates ultrasonic waves to the absorbent.

[0018]

[0019] According to one embodiment of the present invention, a carbon dioxide capture regeneration module with higher regeneration efficiency can be provided in the process of regenerating a solution containing dissolved carbon dioxide.

[0020] In addition, according to one embodiment of the present invention, a carbon dioxide capture regeneration module that can be stably used in environments such as ships through miniaturization can be provided.

[0021] The effects of the present invention are not limited to the effects described above, and should be understood to include all effects that can be inferred from the detailed description of the present invention or the composition of the invention described in the claims.

[0022]

[0023] FIG. 1A and FIG. 1B are block diagrams showing a carbon dioxide capture system provided by one embodiment.

[0024] Figures 2a and 2b are conceptual diagrams showing an absorption module provided by one embodiment.

[0025] Figure 3 is a perspective view showing an absorption module provided by one embodiment.

[0026] Fig. 4 is a cross-sectional view showing a cross-section cut in the AA' direction of Fig. 3.

[0027] Figure 5a is a conceptual diagram of a carbon dioxide capture regeneration module provided by one embodiment.

[0028] FIG. 5b is a perspective view of a carbon dioxide capture regeneration module provided by one embodiment.

[0029] Figure 5c is an enlarged view of B in Figure 5b.

[0030] FIGS. 6A to 6I are cross-sectional views showing a cross-section of a carbon dioxide capture regeneration module provided by one embodiment.

[0031] Fig. 7 is a conceptual diagram showing the operating principle of a rotating body provided by one embodiment.

[0032] FIGS. 8A to 8C are perspective views showing a rotating body of an absorption module or regeneration module provided by one embodiment.

[0033] FIGS. 9A to 9C are cross-sectional views of a rotating body provided by one embodiment.

[0034]

[0035] In order to achieve the above technical task, one embodiment of the present invention provides a carbon dioxide capture system comprising an absorption module that forms a rich solution by mixing carbon dioxide gas and an absorbent, discharges the formed rich solution, and a regeneration module that receives the discharged rich solution and regenerates carbon dioxide from the rich solution, wherein at least one of the absorption module and the regeneration module comprises a rotating structure.

[0036]

[0037] Hereinafter, the present invention will be described with reference to the attached drawings. However, the present invention can be implemented in various different forms and is therefore not limited to the embodiments described herein. In the drawings, irrelevant parts have been omitted for clarity of description, and similar parts have been designated with similar reference numerals throughout the specification.

[0038] For convenience of explanation, the sizes of components in the drawings may be exaggerated or reduced. For example, the size and thickness of each component shown in the drawings may be arbitrarily indicated for convenience of explanation, and the following embodiments are not necessarily limited to those shown.

[0039] Terms such as first, second, A, and B may be used to describe various components, but these components should not be limited by these terms. These terms are used solely to distinguish one component from another. For example, without departing from the scope of the present invention, a first component may be referred to as a second component, and similarly, a second component may also be referred to as a first component. The term "and / or" includes a combination of multiple related items described herein or any of multiple related items described herein.

[0040] Throughout the specification, when a part is said to be "connected (connected, contacted, or coupled)" to another part, this includes not only cases where it is "directly connected," but also cases where it is "indirectly connected" with another part in between. Furthermore, when a part is said to "include" a component, this does not exclude other components, but rather implies that it may include other components, unless otherwise specifically stated.

[0041] The terminology used herein is for the purpose of describing specific embodiments only and is not intended to limit the present invention. Singular expressions include plural expressions unless the context clearly dictates otherwise.

[0042] In this specification, terms such as “include” or “have” are intended to specify the presence of a feature, number, step, operation, component, part or combination thereof described in the specification, but should be understood not to exclude in advance the possibility of the presence or addition of one or more other features, numbers, steps, operations, components, parts or combinations thereof.

[0043] When something is referred to as "on" or "on" another object, it includes not only the object directly above the other object, but also the case where there is an intervening object.

[0044]

[0045] A wet carbon dioxide capture device (or system) provides a function of allowing carbon dioxide to come into contact with a liquid in which carbon dioxide can be dissolved (hereinafter referred to as “absorbent”), so that carbon dioxide is absorbed and regenerated while the absorbent circulates within the device.

[0046] Meanwhile, the absorbent may mean both a rich solution in which carbon dioxide is abundantly dissolved and a lean solution in which carbon dioxide is not abundantly dissolved.

[0047] A wet carbon dioxide capture device (or system) comprises an absorption module and a regeneration module. In the absorption module, an absorbent is mixed with carbon dioxide to form a rich solution, and in the regeneration module, carbon dioxide in the rich solution is separated to form a lean solution or an absorbent state in which carbon dioxide is not dissolved.

[0048] In this specification, "module" may mean components that are combined, attached, or arranged to form a single object, and examples thereof include, but are not limited to, an absorption module, an absorption tower, a regeneration module, and a regeneration tower.

[0049] However, as mentioned above, the carbon dioxide capture devices (or systems) previously proposed required large-scale facilities and, due to the high temperature or excessive regeneration energy required during the regeneration process, could not provide a capture system suitable for operation with small amounts of electric energy, such as in ships.

[0050] FIG. 1A and FIG. 1B are block diagrams showing a carbon dioxide capture system provided by one embodiment.

[0051] Referring to FIGS. 1A and 1B, the present invention provides a carbon dioxide capture system (S1) (hereinafter referred to as a “capture system”) including an absorption module (A) and a regeneration module (R). At this time, at least one of the absorption module (A) and the regeneration module (R) may include a rotating structure. A more detailed description of the rotating structure (hereinafter referred to as a “rotary body”) will be provided later.

[0052] In the absorption module (A), carbon dioxide gas and an absorbent can be mixed to form a rich solution, and further, the formed rich solution can be discharged to start the process in the capture system (S1).

[0053] In one embodiment, the absorption module (A) may be configured to receive exhaust gas or flue gas (hereinafter referred to as "exhaust gas, etc.") and an absorbent that absorbs carbon dioxide. The exhaust gas, etc. may include waste gases formed as final products of power generation or processes in various industrial fields, and such exhaust gas, etc. may contain a large amount of carbon dioxide.

[0054] Although not shown in the drawing, in one embodiment, the flue gas, etc. may be introduced after being cooled to room temperature (15°C to 25°C) through a pretreatment cooling process, etc. The process of carbon dioxide being absorbed by the absorbent in the absorption module (A) may be an exothermic reaction, and in order to promote such an exothermic reaction, the flue gas, etc. may be pretreated to room temperature and then introduced into the absorption module (A).

[0055] In one embodiment, the absorption module (A) can form a rich solution by mixing an absorbent and carbon dioxide and discharge it, and the discharged rich solution can have a temperature of 30° C. to 40° C. By having the above temperature range, as will be described later, the process can be performed at a lower temperature range than in the regeneration module (R), and, as will be described later, the electric energy consumed for the operation of the capture system (S1) can be reduced.

[0056] In the regeneration module (R), the rich solution discharged from the absorption module (A) can be received and carbon dioxide can be regenerated from the rich solution. At this time, carbon dioxide is separated, and the rich solution can form an absorbent (lean solution) containing little or no carbon dioxide.

[0057] In one embodiment, the rich solution flowing into the regeneration module (R) can be set to 40°C to 70°C. As will be described later, the capture system (S1) according to one embodiment of the present invention can induce regeneration of carbon dioxide in a lower temperature range by forming the regeneration unit and the heating unit as one unit, and according to another embodiment of the present invention, it can induce regeneration of carbon dioxide in an even lower temperature range by further including an auxiliary heating component such as an ultrasonic irradiation unit.

[0058] Accordingly, by having the above temperature range, the regeneration energy in the regeneration module (R) can be reduced, and further, the operating cost of the capture system (S1) can be reduced.

[0059] In one embodiment, the capture system (S1) may further include a heat exchanger (T). By further including a heat exchanger (T) as in the above structure, heat exchange can be generated between absorbents that circulate through the capture system (S1) and have different temperatures depending on the circulation section, and by recycling heat in this way, process efficiency can be further improved.

[0060] Such a heat exchanger (T) is not particularly limited, and any heat exchanger that can be selected by a technician with ordinary knowledge in the art should be interpreted as falling within the scope of the present invention.

[0061] In one embodiment, the rich solution discharged from the absorption module (A) is transferred to one area of ​​the heat exchanger (T), and a portion of the absorbent discharged from the regeneration module (R) is transferred to one area of ​​the heat exchanger (T), so that heat exchange can occur between the rich solution discharged from the absorption module (A) and the absorbent discharged from the regeneration module (R).

[0062] Referring to FIG. 1B, in one embodiment, the capture system (S1) may further include an oxygen remover (E) for removing oxygen within the absorbent. Among the absorbents, there are some that undergo a side reaction with oxygen, which reduces their reactivity with carbon dioxide, which may lead to a reduction in process efficiency. Accordingly, some of the absorbents may react with oxygen to form byproducts, thereby reducing process efficiency. As in the above structure, by removing oxygen within the absorbent, a reduction in process efficiency can be prevented.

[0063] Meanwhile, the connection location of the oxygen remover (E) is not particularly limited, and any oxygen remover that can be easily selected by a technician with ordinary knowledge in the art should be interpreted as falling within the scope of the present invention.

[0064] In one embodiment, one region of the oxygen remover (E) may be connected to one region of the absorption module (A), and another region may be connected to the heat exchanger (T). As in the above structure, oxygen may be removed from the absorbent in a rich solution state discharged from the absorption module (A) and then introduced into the heat exchanger (T). In addition, the present invention is not limited thereto, and one region of the oxygen remover (E) may be connected to the heat exchanger (T), and another region may be connected to the regeneration module (R).

[0065] Referring again to FIGS. 1A and 1B, in one embodiment, the capture system (S1) may include a cooler (C). The absorbent in a lean solution state passing through the heat exchanger may be re-introduced into the absorption module, and by repeatedly circulating the absorbent within the capture system (S1) in this manner, process efficiency can be improved and process costs can be reduced.

[0066] At this time, the absorbent in a lean solution state passing through the heat exchanger (T) may require additional cooling, and by further including a cooler (C) as in the above structure, the absorbent in a lean solution state can be formed at a lower temperature, and further, the absorbent in a lean solution state can be introduced into the absorption module (A) where the exothermic reaction proceeds at a lower temperature, thereby further improving the process efficiency.

[0067] Referring again to FIGS. 1A and 1B, in one embodiment, the capture system (S1) may include a condenser (C'). The gas discharged from the regeneration module (R) contains both carbon dioxide gas and gaseous absorbents. At this time, the condenser (C') may liquefy the gaseous absorbents and recycle the liquefied absorbents back to the regeneration tower, thereby improving the carbon dioxide regeneration yield in the regeneration module (R).

[0068] Meanwhile, such a condenser (C') is not particularly limited, and any condenser that can be easily selected by a technician with ordinary knowledge in the technical field should be interpreted as falling within the scope of the present invention.

[0069] Below, an absorption module (A) according to one embodiment is described.

[0070] Figures 2a and 2b are conceptual diagrams showing an absorption module provided by one embodiment.

[0071] Referring to Fig. 2a, in one embodiment, the absorption module (A) can allow exhaust gas or the like to flow in (F1) through one side region of the absorption module (A), and allow the absorbent to flow in (F2) into the absorption module through the upper region of the absorption module (A). At this time, referring to Fig. 2b, as will be described later, the absorbent can pass through a rotating body disposed in the absorption module (A), and the absorbent can be formed into droplets in the process of passing through the rotating body. In addition, by forming the absorbent into the droplet form in this way, the effective collision area can be improved. As the effective collision area of ​​the absorbent is improved as in the above structure, the amount of carbon dioxide dissolved in the absorbent can also be improved, and further, the process efficiency of the capture system (S1) can be improved.

[0072] In addition, in one embodiment, the absorbent that absorbs carbon dioxide in the exhaust gas and the like and becomes a rich solution may be discharged (F3) through one area of ​​the absorption module (A). In addition, as an optional embodiment, the exhaust gas and the like from which carbon dioxide has been removed may be discharged (F4) to the outside through one area of ​​the absorption module (A).

[0073] In one embodiment, the absorbent comprises a tertiary amine, and / or a sterically hindered amine, and / or a polyamine, and / or a carbonate buffer salt, and / or water (optionally deionized water); optionally, the water may be comprised in an amount of 10 wt% to 70 wt%. However, the present invention is not limited to the above examples, and any liquid in which carbon dioxide can be easily dissolved should be interpreted as falling within the scope of the present invention.

[0074] In one embodiment, one or more additives may be added to the dissolving liquid to improve the solubility of carbon dioxide, but this is not particularly limited.

[0075] Figure 3 is a perspective view showing an absorption module provided by one embodiment.

[0076] Fig. 4 is a cross-sectional view showing a cross-section cut in the AA' direction of Fig. 3.

[0077] Referring to FIGS. 3 and 4, in one embodiment, the absorption module (A) includes an outer housing (100), an absorption rotating body (140) that is disposed in an area inside the outer housing (100), and that rotates within the outer housing (100), and the absorption rotating body (140) may have at least one through hole disposed along the outer surface of the absorption rotating body (140).

[0078] At this time, as an optional embodiment, a power transmission unit (141) that transmits power to the absorbing rotating body (140) to rotate the absorbing rotating body (140) may be included. The absorbing rotating body (140) that receives power from the power transmission unit (141) can rotate, and the absorbent guided within the absorbing rotating body (140) can be sprayed to the outside of the absorbing rotating body (140) along the absorption penetration hole (150) formed along one area of ​​the absorbing rotating body (140). The specific structure and effect of the absorbing rotating body (140) will be described later.

[0079] Referring again to FIG. 3, in one embodiment, the external absorption housing (100) may include a first absorption housing (110) arranged in a side area of ​​the absorption rotor (140), a second absorption housing (120) and a third absorption housing (130) arranged in a direction intersecting the first absorption housing (110).

[0080] In one embodiment, the second absorption housing (120) and the third absorption housing (130) are arranged in a direction perpendicular to the first absorption housing (110), and can be arranged in the upper and lower regions of the first absorption housing (110), respectively. By dividing the external absorption housing (100) into the first absorption housing (110), the second absorption housing (120), and the third absorption housing (130) as in the above structures, the absorption rotor (140) arranged inside the external absorption housing (100) can be managed more efficiently.

[0081] Referring again to FIGS. 3 and 4, in one embodiment, the external absorption housing (100) may include a first absorption pipe (P1). Exhaust gas containing carbon dioxide or the like may be injected into the external absorption housing (100) through the first absorption pipe (P1). In one optional embodiment, the first absorption pipe (P1) may be arranged on one side of the first absorption housing (110).

[0082] By having the above structure, exhaust gas, etc. containing carbon dioxide, can be injected into the external absorption housing (100) in a direction crossing the rotational direction of the absorber rotor (140). Through this, the absorbent and exhaust gas, etc. ejected from the inner region of the absorber rotor (140) to the outer region of the absorber rotor (140), can collide over a wider area, thereby improving the solubility of carbon dioxide in the dissolving liquid. In one optional embodiment, the exhaust gas, etc. can be injected into the external absorption housing (100) in a direction perpendicular to the rotational direction of the absorber rotor (140).

[0083] In one embodiment, the first absorption pipe (P1) may include one or more absorption pipes (not shown). Depending on the location and size of the absorption module (10) used, the number of the first absorption pipes (P1) may be adjusted, and by adjusting the number of the first absorption pipes (P1), the amount of exhaust gas or flue gas injected into the external absorption housing (100) may be adjusted.

[0084] Referring again to FIG. 4, in one embodiment, the external absorption housing (100) may include a second absorption pipe (P2). A dissolving liquid may be injected into the external absorption housing (100) through the second absorption pipe (P2). Meanwhile, as an optional example, the second absorption pipe (P2) may be arranged in an area of ​​the second absorption housing (120). The second absorption pipe (P2) may be arranged in a direction intersecting a wide surface of the second absorption housing (120) to inject a fluid into the external absorption housing (100).

[0085] In one embodiment, a first absorption nozzle (N) may be arranged at one end of the second absorption pipe (P2). At this time, at least one first absorption nozzle hole (N1) may be arranged along the longitudinal direction of the first absorption nozzle (N). By having the above structure, the dissolving liquid can be injected into the interior of the external absorption housing (100) through the second absorption pipe (P2), and the dissolving liquid can be sprayed through the absorption nozzle hole (N1) via the first absorption nozzle (N).

[0086] In one embodiment, one end of the second absorption pipe (P2) may be arranged adjacent to or penetrating the central region of the absorbing rotor (140). By having the above structure, the absorbent can be injected into the central region of the rotor through the second absorption pipe (P2).

[0087] In one embodiment, a first absorption nozzle (N) may be arranged at one end of the second absorption pipe (P2). As an optional example, the first absorption nozzle (N) may be provided with a first absorption nozzle hole (N1) along the longitudinal direction, and the first absorption nozzle (N) may be arranged in the central region of the absorption rotator (140).

[0088] By having the above structure, the dissolving liquid can be injected into the central region of the rotating body through the second absorption pipe (P2), and the dissolving liquid can be sprayed from the inner region of the absorbing rotating body (140) toward the outer region through the absorption nozzle hole (N1). Through the above process, the absorbent can be sprayed to the outside of the absorbing rotating body (140) along the absorption penetration hole (150) arranged on the surface of the absorbing rotating body (140).

[0089] Referring again to FIGS. 3 and 4, in one embodiment, the external absorption housing (100) may include a third absorption pipe (P3). Exhaust gas, etc. injected into the external absorption housing (100) collides with the absorbent, thereby removing carbon dioxide, and the exhaust gas, etc. from which carbon dioxide has been removed is discharged to the outside of the external absorption housing (100) through the third absorption pipe (P3).

[0090] In one embodiment, the third absorption pipe (P3) may be arranged in the upper region of the external absorption housing (100). Since the exhaust gas or flue gas from which carbon dioxide is removed and the temperature thereof increases tends to move upward, the third absorption pipe (P3) may be arranged in the upper region of the external absorption housing (100), thereby more effectively removing the exhaust gas or the like within the external absorption housing (100). As an optional example, the third absorption pipe (P3) may be arranged in an area of ​​the second absorption housing (120) arranged in the upper region of the absorption rotor (140).

[0091] Referring again to FIG. 4, in one embodiment, the external absorption housing (100) may include a fourth absorption pipe (P4a, P4b) arranged in a lower region. In an optional embodiment, the fourth absorption pipe (P4a, P4b) may be arranged in one region of the third absorption housing (130).

[0092] The absorbent introduced into the external absorption housing (100) through the second absorption pipe (P2) comes into contact with exhaust gas, etc., and carbon dioxide is dissolved inside, and the absorbent with carbon dioxide dissolved therein can be discharged to the outside of the external absorption housing (100) through the fourth absorption pipe (P4a, P4b).

[0093] By including the fourth absorption pipe (P4a, P4b) arranged in the lower region of the third absorption housing (130) as in the above structure, the absorbent can be discharged more efficiently to the outside of the external absorption housing (100). At this time, although FIG. 3 illustrates an embodiment in which there are multiple fourth absorption pipes, FIG. 4 may have one absorption pipe, or may have three or more, and it goes without saying that the number of fourth absorption pipes is not particularly limited.

[0094] Meanwhile, a more detailed and specific description of the absorbing rotor (140) will be described later.

[0095] Below, a regeneration module (R) according to one embodiment is described.

[0096] Fig. 5a is a conceptual diagram of a carbon dioxide capture regeneration module provided by one embodiment. Fig. 5b is a perspective view of a carbon dioxide capture regeneration module provided by one embodiment.

[0097] Referring to FIGS. 5a and 5b, in one embodiment, the regeneration module (R) may include a heating unit (200) and a regeneration unit (210) disposed in one area of ​​the heating unit (200).

[0098] By arranging the regeneration unit (210) adjacent to a region of the heating unit (200) as in the above structure, it is possible to provide a regeneration module in a small or medium scale, unlike the regeneration towers presented in the past. In addition, as an optional embodiment, the regeneration module (R) can be formed in a small scale, thereby allowing it to be applied to various industrial fields, and to provide a regeneration module (R) in a size or scale required in each industrial field.

[0099] In one embodiment, the regeneration unit (210) may be arranged adjacent to the heating unit (200). In addition, as an optional example, the regeneration unit (210) and the heating unit (200) may be arranged adjacent to each other and may be coupled by an attachment and / or coupling method, as in the above structure. Through the above structure, efficiency issues such as heat loss occurring during movement between the heating unit (200) and the regeneration unit (210) can be improved, and a regeneration module (R) that can operate more stably even in environments such as ships where the regeneration module (R) is used can be provided.

[0100] In one embodiment, the method of attachment and / or coupling may use methods such as a welding method or a screwing method between components, and is not limited to the above examples, and it should be construed that all attachment and / or coupling methods that can be easily selected by a person skilled in the art are within the scope of the present invention.

[0101] Referring again to Fig. 5a, the operation process of the regeneration module (R) provided in the embodiments will be described. First, the carbon dioxide-absorbed absorbent from the absorption module (A) can be transferred into the regeneration unit (210) (F a). In the regeneration module (R) provided by one embodiment of the present invention, carbon dioxide can be first separated from at least a portion of the absorbent in which carbon dioxide has been absorbed through a physical method within the regeneration unit (210). A more detailed description of the regeneration unit (210) of one embodiment for this purpose will be described later.

[0102] Referring again to Figure 5a, the absorbent transferred to the regeneration unit (210) is then transferred to the heating unit (200) (F b ) can be. In this process, a buffer unit (220 in Fig. 6a) may be further included to ensure that the regeneration module (R) operates in a steady state, and a more detailed description of the buffer unit (220) will be described later. Meanwhile, in the heating unit (200), the absorbent can be heated through the heating unit, and through this process, the carbon dioxide dissolved in the absorbent can be separated through a chemical method.

[0103] The carbon dioxide separated at this time is discharged (F) from the heating unit (200) c ) can be made, and the absorbents heated within the heating unit (200) are discharged from the heating unit (200) (F d ) can be.

[0104] In this case, as an optional embodiment, the discharged carbon dioxide may be delivered to a carbon dioxide treatment device (not shown), and as another optional embodiment, the discharged absorbents may be guided back to the absorption module (A) to re-dissolve the carbon dioxide within the absorption module (A). In another optional embodiment, the absorbents may be guided back to the regeneration unit (210) (F e ) can be achieved, and this process enables operation with lower renewable energy in the carbon dioxide separation process.

[0105] Also, referring to FIG. 5a again at this time, as an optional embodiment, the separated carbon dioxide is discharged from the heating unit (200) and discharged through an area within the regeneration unit (210) (F c ) can be made possible.

[0106] In addition, the heating unit (200) may further include an ultrasonic irradiation unit (not shown), and ultrasonic waves can be irradiated to the absorbent injected into the heating unit (20) through the ultrasonic irradiation unit (not shown). When ultrasonic waves are irradiated to the liquid absorbent in this way, an acoustic cavitation phenomenon can occur in certain regions of the absorbent. Through this, a chemical reaction is promoted in the absorbent in which carbon dioxide is dissolved, and carbon dioxide can be separated at a higher yield.

[0107] Fig. 5c is an enlarged view of B in Fig. 5b. Figs. 6a to 6i are cross-sectional views showing a cross-section of a carbon dioxide capture regeneration module provided by one embodiment.

[0108] Referring to FIGS. 6A and 6B, in one embodiment, the regeneration unit (210) may include a regeneration unit housing (211) including an accommodation space therein, and a porous regeneration rotor (212) (hereinafter referred to as “rotary body”) disposed inside the regeneration unit housing (211). Meanwhile, the regeneration rotor (212) may be provided with regeneration penetration holes at least on the outside.

[0109] Referring to FIG. 5c, one area of ​​the regeneration unit (210) may include a first regeneration unit pipe (2001) through which the absorbent moves and a second regeneration unit pipe (2002) through which carbon dioxide moves, and as an optional embodiment, at least one of the first regeneration unit pipe (2001) and the second regeneration unit pipe (2002) may be arranged in an upper area of ​​the regeneration unit (210).

[0110] In one embodiment, the size and shape of the first regeneration unit pipe (2001) are not particularly limited and may be of a size and shape sufficient to allow the liquid absorbent to move. In addition, the size and shape of the second regeneration unit pipe (2002) are also not particularly limited and may be of a size and shape sufficient to allow the gaseous carbon dioxide to move.

[0111] In one embodiment, the absorbent may be injected into the regeneration unit (210) through a first regeneration unit pipe (2001) disposed in one area of ​​the regeneration unit (210), and as an optional example, may be guided to the central area of ​​the regeneration rotor (212) disposed in the regeneration unit (210). The second regeneration unit pipe (2002) will be described later. The absorbent guided to the central area of ​​the regeneration rotor (212) in this way may be discharged to the outside of the regeneration rotor (212) from the central area of ​​the regeneration rotor (212) by centrifugal force while the regeneration rotor (212) rotates.

[0112] As described above, in the process of being discharged to the outside from the central region of the regeneration rotor (212), the absorbent collides with the region near the regeneration penetration hole of the regeneration rotor (212), and in this process, the absorbents become individual droplet forms, and in this process, carbon dioxide can be regenerated. As described above, embodiments of the present invention can provide the effect of allowing the absorbent to be guided to the regeneration unit (210) so that carbon dioxide can be primarily separated through a chemical method or desorption. Meanwhile, a more detailed and specific description of the regeneration rotor (212) will be described later.

[0113] Referring again to FIGS. 6A and 6B, in one embodiment, absorbents passing through the regeneration unit (210) may be guided to a buffer unit (220). Such a buffer unit (220) serves to maintain a steady state in which the speed of the total amount of absorbent flowing into the heating unit (200) and the speed of the total amount of absorbent discharged from the heating unit (200) are the same as each other as the process of the regeneration module (R) progresses.

[0114] Such a buffer unit (220) may be arranged within a heating external housing (201) to be described later. As an optional embodiment, the buffer unit (220) may include a receiving space (221) in the upper region of the heating external housing (201) to which an absorbent is delivered. At this time, a pipe (not shown in the drawing) to which a first external pipe (204) is connected may be included at a predetermined height from the bottom of the receiving space (221).

[0115] As in the above structure, by arranging the first external pipe (204) at a predetermined height from the floor of the receiving space (221), at least some of the absorbent delivered from the regeneration unit (210) can remain in the receiving space (221) below the height at which the first external pipe (204) is located.

[0116] By ensuring that at least some of the absorbents remain within the regeneration module (R) in this way, the amount of absorbents flowing into the heating unit (200) can be controlled, and further, the process speed of the entire regeneration module (R) can be controlled.

[0117] In one embodiment, the first external pipe (204) and the second external pipe (205) may be connected to a pump (not shown). Through the above structure, absorbents may be transferred to the second external pipe (205) through the first external pipe (204), and further, the process within the heating unit (200) may be smoothly performed.

[0118] Referring again to FIGS. 6A and 6B , in one embodiment, the heating unit (200) may include a heating outer housing (201) and a heating inner housing (202) disposed within the heating outer housing (201). The heating outer housing (201) may serve as an outer cover for the heating unit (200), and various components to be described later may be disposed in areas within the heating outer housing (201). In addition, the heating inner housing (202) may include one or more housings, and a space may be formed between the housings.

[0119] In one embodiment, at least a portion of the upper region of the heating outer housing (201) may be opened. A regeneration unit (210) may be arranged in the upper region of the heating unit (200), and through the above structure, absorbents delivered into the regeneration unit (210) through the first regeneration unit pipe (2001) may be delivered to one region of the heating unit (200) without a separate pipe.

[0120] As an optional embodiment, at least another portion of the upper region of the heating external housing (201) may be opened. This allows carbon dioxide desorbed or generated in the heating unit (200) to be delivered to a region of the regeneration unit (210) without a separate pipe. At this time, referring again to FIG. 5c, the carbon dioxide delivered to a region of the regeneration unit (210) may be discharged to the outside of the regeneration unit (210) through a second regeneration unit pipe (2002).

[0121] In one embodiment, the absorbent may be discharged from the regeneration unit (210) and then guided to a buffer unit (220) placed inside the heating external housing (201). As described above, by guiding it to the buffer unit (220), the process speed within the heating unit (200) can be controlled.

[0122] In one embodiment, the absorbent may be discharged from the regeneration unit (210) and then delivered into the heating internal housing (202) of the heating unit (200) through a pipe. In an optional embodiment, the absorbent may be delivered directly to the lower region within the heating internal housing (202) through the first internal pipe (203a).

[0123] In one embodiment, a second external pipe (205) may be arranged in an outer region of the heating external housing (201), a first internal pipe (203a) may be arranged in an area within the heating internal housing (202), and the second external pipe (205) and the first internal pipe (203a) may be fluidly connected. Through the above structure, an absorbent (rich solution) containing dissolved carbon dioxide may be directly injected into an area within the heating internal housing (202).

[0124] In this specification, “fluidically connected” may mean a state or relationship in which a fluid located in one space can move to another space according to its flow.

[0125] In one embodiment, one end of the first internal pipe (203a) may be arranged in the lower region within the heating internal housing (202). Through this structure, the absorbent can be directly delivered to the lower region within the heating internal housing (202) through the first internal pipe (203a). When the regeneration module (R) is operated in a normal state, the absorbent can be pre-heated through the high-temperature absorbents surrounding the first internal pipe (203a) in the process of being delivered to the lower region within the heating internal housing (202). Through these, the heat used in the regeneration module (R) can be reused, and power consumption can be reduced.

[0126] As an optional embodiment, the first internal pipe (203a) may be formed of a material with high thermal conductivity. By using such a material with high thermal conductivity, higher heat can be applied to the absorbents passing through the first internal pipe, thereby maximizing the preheating effect. Such a material with high thermal conductivity may include, for example, metal or a synthetic material, but is not limited to the above examples.

[0127] In one embodiment, the heating inner housing (202) may include a first inner housing (202a) and a second inner housing (202b) disposed in a central region of the first inner housing (202a). At this time, the first inner housing (202a) may have an inner region facing an inner region and an outer region disposed in an opposite region of the inner region, and the first inner pipe (203a) may be disposed along the inner region of the heating inner housing (202).

[0128] As an optional embodiment, the first internal pipe (203a) may be arranged along the inner region of the first internal housing (202a). By arranging it along the inner region as in the above structure, other components, which will be described later, can be more stably installed within the heating internal housing (202).

[0129] In one embodiment, the first internal pipe (203a) may be arranged in a spiral structure along the inner region of the heating internal housing (202). By arranging it in this manner, other components can be more stably installed within the heating internal housing (202), and furthermore, the total surface area of ​​the first internal pipe (203a) arranged within the heating internal housing (202) can be maximized.

[0130] Meanwhile, in FIGS. 6a and 6b, only a spiral structure in which the first internal pipe (203a) is arranged along the inner region of the heating internal housing (202) is disclosed, but this is not limited thereto, and the first internal pipe (203a) may be arranged along an inner region of the heating internal housing (202), and the first internal pipe (203a) may also be arranged in the form of a coiled pipe.

[0131] In one embodiment, the heating inner housing (202) may include a first inner housing (202a) and a second inner housing (202b) disposed in the central region of the first inner housing (202a). The first inner housing (202a) may have a sufficient accommodation space therein to accommodate the second inner housing (202b), the first inner pipe (203a), and heating units (206a, 206b). In addition, the first inner housing (202a) may be disposed at a predetermined distance from the heating outer housing (201), thereby allowing the absorbent to be guided as described below.

[0132] In one embodiment, the heating inner housing (202) may include a first inner housing (202a), a second inner housing (202b) disposed in a central region of the first inner housing (202a), and a third inner housing (202c) disposed in a central region of the second inner housing. As in the above structure, by having the heating inner housings (202) include multiple layers of inner housings (111 to 113), the movement path of the absorbents within a narrow space within the heating inner housing (202) can be made longer, thereby improving the residence time of the absorbent within the regeneration module (R), and heating the absorbent within the regeneration module (R) with higher efficiency even with less power.

[0133] In one embodiment, at least one of the first inner housing (202a) and the third inner housing (202c) may have an open upper region. As described below, the absorbent may be heated within the inner housing (201), and when the absorbent is heated within the inner housing (201) to separate carbon dioxide through the above structure, the carbon dioxide in a gaseous state may move out of the inner housing (201) through the open upper region of the inner housing (201).

[0134] In one embodiment, the first inner housing (202a) may be longer in the longitudinal direction than the second inner housing (202b) and the third inner housing (202c). Through this structure, both the second inner housing (202b) and the third inner housing (202c) may be arranged within the first inner housing (202a), and further, the absorbent may be prevented from overflowing outside the first inner housing (202a), and the movement path of the absorbent may be controlled.

[0135] Referring again to FIGS. 6a and 6b, in one embodiment, the second inner housing (202b) may include an open region 1 (H1) in one area of ​​the upper portion. By including the open region 1 (H1) as in the above structure, when the absorbent injected into the first inner housing (202a) is injected in an amount greater than a predetermined amount, the absorbent may move into the second inner housing (202b) through the region 1 (H1).

[0136] In one embodiment, the third inner housing (202c) may be longer than the longitudinal length of the second inner housing (202b). By having the above structure, as described above, when the absorbent is injected into the first inner housing (202a) and rises within the first inner housing (202a), the absorbent may move into the second inner housing (202b) through the open area 1 (H1) of the second inner housing (202b), and further move into the third inner housing (202c) arranged in the central area of ​​the second inner housing (202b). A more detailed description of the movement process of the absorbent and carbon dioxide within the heating inner housing (202) will be described later.

[0137] In one embodiment, the third inner housing (202c) may include a second inner pipe (203b) in the upper region. One end of the second inner pipe (203b) may be arranged in an area of ​​the space between the first inner housing (202a) and the heated outer housing (201). Through the above structure, the absorbent injected into the interior of the third inner housing (202c) may be discharged into the space between the first inner housing (202a) and the heated outer housing (201) along the second inner pipe (203b) as the water level rises within the third inner housing (202c).

[0138] By having the above structure, some of the absorbents transferred into the third inner housing (202c) can be transferred to an area between the inner housing (202a) and the heated outer housing (201), and by measuring the height of the water surface of the absorbents flowing into the space between the inner housing (202a) and the heated outer housing (201), the overall process status within the regeneration module (R) can be confirmed.

[0139] In one embodiment, a first heating element (206a) for heating the absorbent may be arranged in an area within the inner housing (201). In an optional embodiment, the first heating element (206a) may include heating elements that convert electrical energy into thermal energy.

[0140] By using electrical energy as in the above structure, a regenerative module (R) that can be used universally and easily in various industrial fields can be provided, and in particular, according to the present invention, thermal energy can be provided with high efficiency.

[0141] In one embodiment, the first heating element (206a) may include a heating rod that converts electrical energy into thermal energy. The heating rod is not particularly limited, and any heating rod that can be easily selected by a person skilled in the art should be construed as falling within the scope of the present invention. In addition, the heating rod may include a material with high thermal conductivity. Examples of such materials include metals or silicon carbide, and the material is also not particularly limited.

[0142] In one embodiment, the first heating unit (206a) may be arranged in the lower region inside the inner housing (201). As described above, the absorbent may be guided to the lower region of the inner housing (201) through the first inner pipe (203a), and through the structure, the first heating unit (206a) may heat the pre-heated absorbent, and may heat the absorbent with higher efficiency.

[0143] In one embodiment, the first heating element (206a) may be positioned within the first inner housing (202a) or the second inner housing (202b).

[0144] In one embodiment, a region within the heating inner housing (202) may include a second heating element (206b) for heating the absorbent. The second heating element (206b) may independently heat the absorbent, or may be configured to assist the first heating element (206a) in heating the absorbent.

[0145] In one embodiment, the second heating unit (206b) may be a wavelength generator that generates wavelengths, and as another example, may include an ultrasonic irradiation unit. By including a wavelength generator within the regeneration module (R) as in the above structure, it is possible to provide higher efficiency in heating the liquid absorbent, and further improve the efficiency in separating carbon dioxide from the absorbent.

[0146] In one embodiment, the second heating unit (206b) may include a microwave irradiator. Microwaves are highly efficient in applying thermal energy to liquid or molecular particles, and by including such components, the regeneration module (R) can heat the absorbent with greater efficiency.

[0147] In one embodiment, the second heating unit (206b) may be an ultrasonic irradiation unit. When ultrasonic waves are irradiated to a liquid, an acoustic cavitation phenomenon can occur within the liquid, thereby promoting a chemical reaction in the absorbent containing dissolved carbon dioxide, thereby allowing the dissolved carbon dioxide to be separated at a higher yield.

[0148] The required size or performance of such an ultrasonic irradiation unit may vary depending on the industrial field in which the carbon dioxide capture system is used or the scale of the regeneration module. For example, in the case of a carbon dioxide capture system in a large ship, the ultrasonic irradiation unit may be configured to irradiate ultrasonic waves in the wavelength range of 10 kHz to 20 kHz and to irradiate ultrasonic waves with an intensity of 500 W to 1,000 W.

[0149] However, the ultrasonic irradiation unit used is not limited to an ultrasonic irradiation unit having the above performance, and any ultrasonic irradiation unit that can be easily selected by a technician with ordinary knowledge in the art should be interpreted as falling within the scope of the present invention.

[0150] In one embodiment, the second heating unit (206b) may be arranged within the third inner housing (202c). The absorbent may be injected into the lower region of the first inner housing (202a) and then transferred into the third inner housing (202c) via the second inner housing (202b). Through the above structure, the second heating unit (206b) may be arranged at the final path along the movement path within the heating inner housing (202), thereby improving the carbon dioxide regeneration efficiency.

[0151] In one embodiment, the heating external housing (201) may include an area (H2) that is partially open. Inside the heating external housing (201) of the heating unit (200), as the absorbent in which carbon dioxide has been absorbed is heated, gaseous carbon dioxide is formed. Such gaseous carbon dioxide may be discharged through a hole (H2) arranged in one area of ​​the heating external housing (201). In this case, the hole (H2) may be formed in an upper area of ​​the heating external housing (201), as an example, and may pass through one area of ​​the regeneration unit (210) to be separated from the regeneration module (R).

[0152] In one embodiment, a hole (H3) may be formed in one area of ​​the heating inner housing (202). Through the hole, absorbents injected into the heating inner housing (202) may be discharged to the outside of the heating unit (200), thereby allowing the absorbents injected into the heating unit (200) to maintain a normal state.

[0153] Meanwhile, at least two holes (H3) can be provided, and can be used to distinguish between absorbents in which carbon dioxide has not been absorbed and absorbents in which carbon dioxide has been absorbed, and to discharge them within the heating unit (200).

[0154] Absorbents that have not absorbed carbon dioxide may be sent back to the absorption module (A), thereby recycling the absorbents in the capture system. Furthermore, absorbents that have absorbed carbon dioxide may be sent back to the regeneration unit (210) within the regeneration module (R), thereby being circulated within the regeneration module (R).

[0155] Figures 6c and 6d are cross-sectional views showing a regeneration module provided by another embodiment.

[0156] FIGS. 6c and 6d relate to the same module as the regeneration module (R) provided in FIGS. 6a and 6b, except that the regeneration module (R) provided by one embodiment does not include a second heating unit (206b).

[0157] Referring to FIGS. 6a and 6b, in one embodiment, a regeneration module (R) that does not include a second heating unit (206b) can be provided, and by arranging the regeneration unit (210) adjacent to the heating unit (200) as in the above structure, the lost heat energy can be minimized, and further, regeneration energy can be saved.

[0158] Figures 6e to 6i are cross-sectional views showing a regeneration module provided by another embodiment.

[0159] Referring to FIGS. 6e to 6i, in one embodiment, the regeneration module (R) may include a regeneration unit (210) and a heating unit (200), and the regeneration unit (210) may be arranged in an upper region of the heating unit (200).

[0160] Referring to FIGS. 6E and 6F, in one embodiment, the heating unit (200) may include a heating outer housing (201). As in the above structure, the structure of the heating unit (200) may be simplified by not including a structure such as a separate inner housing (202). By simplifying the internal configuration of the heating unit (200), the process during movement of the absorbent may be stabilized, and further, the manufacturing cost of the regeneration module (R) may be reduced.

[0161] Referring again to FIGS. 6E and 6F, in one embodiment, the heating unit (200) and the regeneration unit (210) may be fluidly connected, and may be arranged within a single housing (240), as shown in FIGS. 6G to 6I, which will be described later. As an optional embodiment, at least a portion of the boundary between the heating unit (200) and the regeneration unit (210) may include an open area (H2). As in the above structure, absorbents passing through the regeneration unit (210) may move into the heating unit (200) through the open area (H2).

[0162] Referring to FIG. 6f, in one embodiment, the lower surface of the regeneration unit (210) may include an open area (H2) along the outer area, and the central area (2101) of the lower surface may be convex toward the regeneration rotor (212).

[0163] As in the above structure, by forming an open area (H2) along the outer area of ​​the lower area of ​​the regeneration unit (210), the absorbents discharged from the regeneration rotator (212) can be more easily moved to the heating unit (200). In addition, by making the central area (2101) of the lower area of ​​the regeneration unit (210) convex toward the regeneration rotator (212) as in the above structure, the absorbents within the regeneration unit (210) can be induced to move to the outer area of ​​the lower surface of the regeneration unit (210) by gravity, and further, the absorbents can be more easily moved to the heating unit (200).

[0164] Referring to FIGS. 6g to 6i, in one embodiment, the regeneration module (R) includes a regeneration area (210') and a heating area (200'), and the regeneration area (210') and the heating area (200') can be arranged within a single housing (240). By arranging the regeneration area (210') and the heating area (200') within a single housing (240) as in the above structure, the manufacturing cost of the regeneration module (R) can be reduced, and stability in the entire operation process of the regeneration module (R) can be secured.

[0165] In one embodiment, the regeneration area (210') may include at least a portion of the regeneration unit (210) described in other embodiments, and the heating area (200') may include at least a portion of the heating unit (200) described in other embodiments. In addition, more detailed descriptions thereof are replaced with the preceding description.

[0166] In one embodiment, by including a regeneration zone (210') and a heating zone (200') within a single housing (240), absorbents passing through the regeneration rotator (212) of the regeneration zone (210') can be transferred to one zone of the heating zone (200') without a separate process. In carrying out such a process, by appropriately controlling the speed of the absorbent flowing into the regeneration zone (210'), a steady state of the entire regeneration module (R) can be maintained.

[0167] In one embodiment, the boundary between the heating zone (200') and the regeneration zone (210') within the single housing (240) may include an open zone (H2'), and the absorbent passing through the regeneration zone (210') through the open zone (H2') may be transferred to the heating zone (200') without any additional configuration.

[0168] Referring to FIG. 6g, in one embodiment, a heating unit (206) may be included in the lower region of the heating region (200'). The absorbent introduced into the heating region (200') may be heated through the heating unit (206), thereby separating carbon dioxide. At this time, the heating unit (206) may include a heating rod that converts the electrical energy described in the previous embodiment into thermal energy. In addition, a more detailed description of the heating rod will be replaced with the description in the previous embodiments.

[0169] Also, referring to FIG. 6h, in one embodiment, the heating area (200') may include a first heating unit (207) and a second heating unit (208), and two or more heating units (207, 208) may be arranged on one left side and one other side of the entire housing (240), and although not shown in the drawing, both the first heating unit (207) and the second heating unit (208) may be arranged on one left side or one right side.

[0170] Also, referring to FIG. 6i, in another embodiment, the heating region (200') may include a heating member (206') disposed in the lower region. The heating member (206') may include a heating rod or heating plate connected from one side of the inner housing (240) to the other side. In this case, the heating plate may optionally include a heating penetration hole (not shown) through which absorbents can pass.

[0171] Referring to FIGS. 6E to 6I, the lower region of the heating unit (200) or the heating zone (200') may have a concave central region. As an optional embodiment, a hole (H3) may be provided in the central region of the lower surface of the heating unit (200) or the heating zone (200') to allow absorbents to be discharged. In this case, the central region may be concave to allow the absorbents to be discharged more efficiently.

[0172] Below, the rotating bodies that can be included in the absorption module (A) and the regeneration module (S) are described. The rotating bodies used in the absorption module (A) and the regeneration module (S) can have the same structure except that the positions where the driving bodies that transmit power are arranged and the specific sizes or scales of the rotating bodies are different.

[0173] Fig. 7 is a conceptual diagram showing the operating principle of a rotating body provided by one embodiment.

[0174] Referring to Fig. 7, when the absorbent is sprayed out of the rotating body (not shown) along the through hole (1000), the absorbent collides with an area (1001) of the rotating body (not shown) around the through hole (1000) or the edge area (1100) of the through hole (1000). Through this process, the absorbent is divided from large clumped particles (M) into smaller droplets (Bu).

[0175] In one embodiment, the rotating body may mean an absorption rotating body (140) in the absorption module and a regeneration rotating body (212) in the regeneration module, respectively, and the through hole (1000) may mean an absorption through hole (150) in the absorption module (A) or a regeneration through hole in the regeneration module (R).

[0176] In the above process, the surface area of ​​the absorbents can be formed wider, thereby increasing the surface area that carbon dioxide in the exhaust gas can come into contact with, and ultimately improving the solubility of carbon dioxide.

[0177] In one embodiment, the rotating body (RP) may have at least one through hole (1000) arranged along an outer surface area of ​​the rotating body (RP). At this time, the through hole (1000) may have a spherical or polygonal shape, and the shape of the through hole (1000) is not particularly limited.

[0178] In one embodiment, the through hole (1000) may have an area ratio of 0.3 to 0.5 relative to the total area of ​​the side area of ​​the rotating body (RP), 0.3 to 0.5, 0.31 to 0.5, 0.33 to 0.5, 0.36 to 0.5, 0.39 to 0.5, 0.42 to 0.5, 0.45 to 0.5, 0.48 to 0.5, 0.3 to 0.45, 0.31 to 0.45, 0.33 to 0.45, 0.36 to 0.45, 0.39 to 0.45, 0.42 to 0.45, 0.3 to 0.40, 0.31 to 0.40, 0.33 to 0.40, 0.36 It may be 0.40, or 0.39 to 0.40.

[0179] When the area ratio of the penetration hole (1000) is less than 0.3, the penetration hole (1000) is formed too small, so that the absorbent cannot be sufficiently sprayed to the outside, and thus the solubility of carbon dioxide cannot be sufficiently secured. When the area ratio of the penetration hole (1000) exceeds 0.5, the penetration hole (1000) is formed too large, so that sufficiently small droplets cannot be formed during the process of spraying the absorbent, and thus the solubility of carbon dioxide cannot be sufficiently secured.

[0180] FIGS. 8A to 8C are perspective views showing a rotating body of an absorption module or regeneration module provided by one embodiment.

[0181] The drawing illustrates a rotating body, and as described above, it can be used for the absorption rotating body (140) of the absorption module (A) or the regeneration rotating body (212) of the regeneration module (R).

[0182] Referring to FIGS. 8A to 8C, in one embodiment, the rotating body (RP) may have a structure in which at least one plate is coupled, attached, or arranged. By including a structure in which at least one plate is coupled, attached, or arranged in this way, when the absorbent is discharged from the inside of the rotating body (RP) to the outside, the liquid can collide with the plates more frequently, thereby allowing carbon dioxide to be dissolved more efficiently within the absorbent.

[0183] Referring to FIG. 8a, in one embodiment, the rotating body (RP) may include a plate assembly portion (RP1) and a rotating coupling portion (RP2). By having the above structure, the rotating body (RP) can be more easily coupled with a power transmission portion (not shown) that provides rotational power to the rotating body (RP).

[0184] In one embodiment, the plate assembly (RP1) may include at least one through hole (1000) arranged along its surface area. By having the above structure, as described above, the absorbent contained therein can flow out of the rotating body (RP) through the through hole (1000), and as described above, contact between the absorbent and exhaust gas or flue gas can be induced, thereby improving the solubility of carbon dioxide in the absorbent.

[0185] In one embodiment, the rotary joint (RP2) is a configuration that connects the plate assembly (RP1) and a power transmission unit (not shown) that transmits power to rotate the rotary body (RP). By arranging the rotary joint (RP2) in one area of ​​the rotary body (RP), the rotary body (RP) can be more stably connected to the power transmission unit (not shown), and the rotary body (RP) can be prevented from deviating from the central axis of rotation even at high speeds.

[0186] In one embodiment, the rotating joint (RP2) may be in the form of a plate. By having a plate shape, the bonding area with the plate assembly (RP1) can be increased, and by having the above structure, the rotating body (RP) can be prevented from deviating from the central axis of rotation even when the rotating body (RP) rotates at high speed.

[0187] In one embodiment, the rotary joint (RP2) may be in the form of a plate having at least one coupling groove (RP3) provided in one area. The coupling groove (RP3) may be positioned at a position corresponding to a protrusion (J) provided in one area of ​​the plate assembly (RP1), and by fitting the protrusion (J) provided in the plate assembly (RP1) into the coupling groove (RP3), the plate assembly (RP1) may be prevented from slipping and deviating from the central axis even when the rotary body (RP) rotates.

[0188] In one embodiment, the rotary joint (RP2) includes a plurality of coupling grooves (RP3), and the plurality of coupling grooves (RP3) can be arranged in a V shape to form a group of coupling grooves. The vertices of the group of coupling grooves arranged in a V shape can be directed in the rotational direction of the rotary body (RP), and by having the above structure, even when the rotary body (RP) rotates at a high speed, the plate assembly (RP1) can be more stably and firmly maintained in connection with the rotary joint (RP2).

[0189] In one embodiment, the joining groove (RP3) provided in the rotating joint (RP2) and the protrusion (J) provided in one area of ​​the plate assembly (RP1) can be joined more firmly by welding or the like after being joined while being fitted together.

[0190] In one embodiment, the rotating joint (RP2) may have a plate shape with a concave center, although this is not illustrated in the drawing. The plate assembly (RP1) may have various shapes, such as a spherical shape as well as a cylindrical shape, as will be described later, and the rotating joint (RP2) may have various shapes to correspond to the plate assembly (RP1) having various shapes.

[0191] In one embodiment, the rotating joint (RP2) may further include a buffer member (not shown) disposed between the plate assembly members (RP1), although not illustrated in the drawing. Such a buffer member (not shown) is not particularly limited, and it should be construed that any buffer member (not shown) made of a material capable of buffering friction between metals, which can be easily selected by a person skilled in the art, falls within the scope of the present invention.

[0192] Referring to FIGS. 8b and 8c, in one embodiment, the plate assembly (RP1) may include a first plate (P1) to a third plate (P3), and each plate may independently include a shape such as a cylindrical shape or a spherical shape. The description of each shape of the plates, the joint structure, etc. is replaced with the description of the rotating body (RP) below.

[0193] In one embodiment, the rotor (RP) may include a first plate (P1) to a third plate (P3). The first plate (P1) to the third plate (P3) may be arranged or stacked while sharing a central axis.

[0194] In one embodiment, the rotating body (RP) may include a first plate (P1), a second plate (P2) arranged along an inner circumferential region of the first plate (P1), and a third plate (P3) arranged along an inner circumferential region of the second plate (P2). In an optional embodiment, the second plate (P2) may be arranged to be spaced apart from the first plate (P1) by a predetermined distance, and the third plate (P3) may also be arranged to be spaced apart from the second plate (P2) by a predetermined distance.

[0195] In one embodiment, the rotating body (RP) may include a first plate (P1), a second plate (P2) spaced apart from the first plate (P1) by a predetermined distance and arranged parallel to the inner surface of the first plate (P1), and a third plate (P3) spaced apart from the second plate (P2) by a predetermined distance and arranged parallel to the inner surface of the second plate (P2).

[0196] In one embodiment, the first plate (P1) to the third plate (P3) may include a cylindrical plate, and as another example, may include a spherical plate. However, the plates are not limited to the cylindrical or spherical shapes, and may be implemented in various shapes, such as a polyhedral shape, and the shapes are not limited to the examples above.

[0197] In one embodiment, the rotating body (RP) includes a first plate (P1) to a third plate (P3), and the first plate (P1) to the third plate (P3) can all have one rotational axis (I). In this way, by rotating around one rotational axis (I), even if a plurality of plates (P1, P2, P3) rotate within the housing (O1), contact or collision between the plates or between the plates and the housing (O1) can be prevented.

[0198] In one embodiment, the rotating body (RP) includes first to third plates (P1) having a cylindrical or spherical shape, and the first to third plates (P3) may be arranged in a concentric shape. By arranging the first to third plates (P1) in this way in a concentric shape, even if a plurality of plates (P1, P2, P3) rotate within the housing (O1), contact or collision between the plates or between the plates and the housing (O1) can be prevented.

[0199] By having the above structure, the rotating body (RP) can be made to rotate stably even when it rotates repeatedly, and further, the absorbents can be discharged out of the rotating body (RP) more stably.

[0200] In one embodiment, the rotor (RP) includes a first plate (P1) to a third plate (P3), and the first plate (P1) to the third plate (P3) can all rotate in the same direction. By coupling the first plate (P1) to the third plate (P3) to a single rotation coupling part (RP2), they can be controlled to rotate in the same direction, thereby allowing the rotor to rotate more stably and at a high speed, and the rotor (RP) can provide a stronger centrifugal force.

[0201] In one embodiment, the rotating body (RP) includes a first plate (P1) to a third plate (P3), and at least one of the first plate (P1) to the third plate (P3) can be rotated in an opposite direction. By having the above structure, the first through holes (X1) to the third through holes (X3) included in each of the first plate (P1) to the third plate (P3) can be rotated independently, thereby causing more collisions during the process of the absorbent flowing out, thereby increasing the solubility of carbon dioxide in the absorbent.

[0202] In one embodiment, although not illustrated in the drawing, the rotating joint (RP2) includes a first fixing part (not illustrated) to a third fixing part (not illustrated), and the first fixing part (not illustrated) to the third fixing part (not illustrated) can be fixed to the first plate (P1) to the third plate (P3), respectively. By having the above structure, the rotation of the first plate (P1) to the third plate (P3) can be independently controlled.

[0203] FIGS. 9A to 9C are cross-sectional views of a rotating body provided by one embodiment.

[0204] In FIGS. 9a to 9c, for convenience of explanation, a cross-sectional view of the rotating body and a housing (O) in which the rotating body is accommodated are shown together.

[0205] Referring to FIGS. 9A to 9C, in one embodiment, the rotating body (RP) has at least one through hole (1000) arranged along the outer surface. Meanwhile, the rotating body (RP) may include a first plate (P1) to a third plate (P3), and in this case, the first plate (P1) to the third plate (P3) may each be provided with at least one first through hole (X1) to a third through hole (X3).

[0206] Referring to FIG. 9a, in one embodiment, a virtual first line (a'' line) passing through at least one first through hole (X1) and the rotation axis of the rotating body (RP), a virtual second line (a' line) passing through at least one second through hole (X2) and the rotation axis of the rotating body (RP), and a virtual third line (a line) passing through at least one third through hole (X3) and the rotation axis of the rotating body (RP) can all be made parallel.

[0207] Referring to FIG. 9b, in one embodiment, at least two lines among a virtual first line (line a'') passing through at least one first through-hole (X1) and the rotational axis of the rotating body (RP), a virtual second line (line a') passing through at least one second through-hole (X2) and the rotational axis of the rotating body (RP), and a virtual third line (line a) passing through at least one third through-hole (X3) and the rotational axis of the rotating body (RP) may be parallel. By having the above structure, the absorbent may collide with more plates in the process of being discharged from the central region of the rotating body (RP) to the outer region.

[0208] Referring to FIG. 9c, in one embodiment, a virtual first line (line a'') passing through at least one first through-hole (X1) and the rotation axis of the rotating body (RP), a virtual second line (line a') passing through at least one second through-hole (X2) and the rotation axis of the rotating body (RP), and a virtual third line (line a) passing through at least one third through-hole (X3) and the rotation axis of the rotating body (RP) can all intersect.

[0209] By including the above structure, the absorbent can be discharged to the outer region of the rotating body (RP) through the third through hole (X3), the second through hole (X2), and the first through hole (X1), and further, the number of collisions with the first plate (P1) to the third plate (P3) during the discharge process can be further increased, and through this, the absorbent can be divided into smaller particles, and the contact area with carbon dioxide can be increased, and the solubility of carbon dioxide can be improved.

[0210] In one embodiment, the power transmission unit (not shown) may be connected to a power source, although not shown in the drawing. The power source may include any power source that provides sufficient power for the rotation of the rotor (RP), including AC power or DC power. Meanwhile, the power source may be located within the absorption module (10), or may be located externally. In addition, the power source is not particularly limited, and any power source that can be easily selected or adopted by a person skilled in the art should be construed as falling within the scope of the present invention.

[0211] In one embodiment, the power transmission unit (not shown) may include a shaft (not shown) connected to the center of the rotating body (RP), referring again to FIG. 3, but is not limited to the above structure, and any configuration for transmitting power that can be easily selected by a person skilled in the art should be interpreted as falling within the scope of the present invention.

[0212] In one embodiment, the total volume ratio of the absorption rotor (140) and the regeneration rotor (212) included in the absorption module (A) can be 1.0 to 3.0, in another example, 1.2 to 3.0, in another example, 1.5 to 3.0, in another example, 1.5 to 2.5, and in one example, 2.4.

[0213] The larger the total volume of the rotating body (140, 212), the greater the amount of process that can be processed. At this time, exhaust gas and absorbent are simultaneously introduced into the absorption rotating body (140), while the absorbent in a rich solution state is introduced into the regeneration rotating body (212). Therefore, the total volume of the absorption rotating body (140), into which more gas or liquid is introduced, can be made larger than the total volume of the regeneration rotating body (212).

[0214] When the total volume ratio of the absorption rotor (140) and the regeneration rotor (212) exceeds 3.0, the absorption rotor (140) may become excessively larger than the total volume of the regeneration rotor (212), and accordingly, the manufacturing cost of the absorption module (A) and the process cost of the capture system (S1) may become excessively high.

[0215] In addition, although not depicted in the drawing, in one embodiment, the absorption module (A) and / or the regeneration module (R) may further include a process monitoring component (not shown), and such process monitoring component (not shown) may include, for example, a temperature measuring device, a flow measuring device, and / or a pressure measuring device. However, the present invention is not limited to the above examples, and any process monitoring component that can be easily selected by a person skilled in the art should be interpreted as falling within the scope of the present invention.

[0216]

[0217] It goes without saying that the embodiments of the present invention described above can be implemented in combination with each other.

[0218] The foregoing description of the present invention is 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, each component described as a single entity may be implemented in a distributed manner, and similarly, components described as distributed may be implemented in a combined manner.

[0219] The scope of the present invention is indicated by the claims described below, 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.

[0220]

[0221] <Explanation of symbols>

[0222] A: Absorption module

[0223] R: Regeneration module

Claims

1. An absorption module that forms a rich solution by mixing carbon dioxide gas and an absorbent and discharges the formed rich solution; A regeneration module that receives the discharged rich solution and regenerates carbon dioxide from the rich solution; A carbon dioxide capture system, wherein at least one of the above absorption module and the above regeneration module comprises a rotating structure.

2. In paragraph 1, A carbon dioxide capture system further comprising an oxygen remover for removing oxygen within an absorbent.

3. In paragraph 1, The above carbon dioxide capture system further includes a heat exchanger, The rich solution discharged from the above absorption module is transferred to one area of ​​the heat exchanger, A portion of the absorbent discharged from the above regeneration module is transferred to one area of ​​the heat exchanger, A carbon dioxide capture system in which heat exchange occurs between the rich solution discharged from the above absorption module and the absorbent discharged from the above regeneration module.

4. In paragraph 1, The above absorption module comprises an absorption outer housing; an absorption rotating body disposed in an area inside the absorption outer housing and rotating within the absorption outer housing; A carbon dioxide capture system in which the above-mentioned absorbing rotor has at least one absorption penetration hole arranged along the outer surface of the absorbing rotor.

5. In paragraph 1, The above regeneration module includes a regeneration unit and a heating unit, The above regeneration unit is provided with a rich solution, and carbon dioxide is separated from at least a portion of the rich solution. The heating unit is arranged in one area of ​​the regeneration unit, and a rich solution is delivered from the regeneration unit, and a heating unit that heats the delivered rich solution; A carbon dioxide capture system comprising:

6. In paragraph 5, A carbon dioxide capture system, wherein the heating unit includes an ultrasonic irradiation unit that is arranged in an area within the heating unit and irradiates ultrasonic waves to the absorbent.

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