Management device, management method, and acid gas adsorption system

Abstract

A management device (30) is provided with: a concentration acquisition unit (31) that acquires a first concentration, which is the concentration of an acidic gas when a gas containing the acidic gas is introduced into an acidic gas adsorption device that adsorbs the acidic gas, and a second concentration, which is the concentration of the acidic gas treated by the acidic gas adsorption device; a recovery amount calculation unit 32 that calculates the recovery amount of the acid gas adsorbed by the acid gas adsorption device on the basis of the first concentration and the second concentration; and a management unit (33) that manages replacement of the acid gas adsorption device on the basis of the regeneration time of the acid gas adsorption device determined on the basis of the calculated recovery amount. As a result, provided are: a management device, a management method, and an acid gas adsorption system, whereby the management of an acid gas adsorption device is easy and the cost can be reduced when the acid gas adsorption device is used to separate and collect acid gas.

Description

Technical Field

[0001] The present invention relates to a management device, a management method, and an acid gas adsorption system. In particular, the present invention relates to a management device for managing an acid gas adsorption device that adsorbs an acid gas, and the like. Background Art

[0002] In recent years, in order to reduce the environmental load, efforts have been made to separate and recover acid gases contained in the atmosphere. As such acid gases, carbon dioxide (CO 2 ) that causes global warming can be mainly cited. Further, an acid gas adsorption device that adsorbs an acid gas can be used to separate and recover acid gases such as carbon dioxide.

[0003] Patent Document 1 discloses an absorbent structure for capturing CO 2 . The absorbent structure includes a honeycomb substrate having a plurality of partition walls extending in the axial direction from an inlet end to an outlet end, thereby forming a plurality of flow paths. The honeycomb substrate contains a cured powder component and an adhesive. Further, the absorbent structure includes a functional structural unit group dispersed in the entire powder component of the partition walls of the honeycomb substrate. The functional structural unit group is located inside and on the partition walls in such a manner that when a gas stream containing CO 2 flows through the flow path from the inlet end to the outlet end, the functional structural unit group forms a carbonate, a bicarbonate, a carbamate, or a coordination bond for forming other coordination or ionic compounds with CO 2 , thereby absorbing CO 2 .

[0004] Prior Art Documents

[0005] Patent Documents

[0006] Patent Document 1: International Publication No. 2013 / 119929 Summary of the Invention

[0007] When an acid gas is separated and recovered using an acid gas adsorption device, in order to reduce costs, the used acid gas adsorption device is sometimes regenerated and reused.

[0008] However, when a recycler of an acid gas manages the regeneration timing, the replacement man-hours for reuse increase, and thus the replacement cost tends to increase. In addition, the management cost for grasping the operation period of the acid gas adsorption device tends to increase.

[0009] An object of the present invention is to provide a management device, a management method, and an acid gas adsorption system that are easy to manage an acid gas adsorption device and can reduce costs when an acid gas is separated and recovered using the acid gas adsorption device.

[0010] In order to solve the above problems, the present invention provides a management device, which includes: a concentration acquisition unit that acquires the concentration of an acidic gas, i.e., a first concentration, when a gas containing the acidic gas is introduced into an acidic gas adsorption device that adsorbs the acidic gas, and the concentration of the acidic gas after being processed by the acidic gas adsorption device, i.e., a second concentration; a recovery amount calculation unit that calculates the recovery amount of the acidic gas adsorbed by the acidic gas adsorption device based on the first concentration and the second concentration; and a management unit that manages the replacement and regeneration of the acidic gas adsorption device according to the regeneration period of the acidic gas adsorption device determined based on the calculated recovery amount.

[0011] In addition, the present invention provides a management method, in which the concentration of an acidic gas, i.e., a first concentration, when a gas containing the acidic gas is introduced into an acidic gas adsorption device that adsorbs the acidic gas, and the concentration of the acidic gas after being processed by the acidic gas adsorption device, i.e., a second concentration, are acquired, the recovery amount of the acidic gas adsorbed by the acidic gas adsorption device is calculated based on the first concentration and the second concentration, and the replacement and regeneration of the acidic gas adsorption device are managed according to the regeneration period of the acidic gas adsorption device determined based on the calculated recovery amount.

[0012] Furthermore, the present invention is an acidic gas adsorption system, which includes: an acidic gas adsorption device that adsorbs the acidic gas; a concentration measurement mechanism that measures the concentration of the acidic gas, i.e., a first concentration, when the acidic gas is introduced into the acidic gas adsorption device, and the concentration of the acidic gas after being processed by the acidic gas adsorption device, i.e., a second concentration; and a management device that manages the acidic gas adsorption device based on the first concentration and the second concentration. The management device includes: a concentration acquisition unit that acquires the first concentration and the second concentration from the concentration measurement mechanism; a recovery amount calculation unit that calculates the recovery amount of the acidic gas adsorbed by the acidic gas adsorption device based on the first concentration and the second concentration; and a management unit that manages the replacement and regeneration of the acidic gas adsorption device according to the regeneration period of the acidic gas adsorption device determined based on the calculated recovery amount.

[0013] Advantages of the Invention

[0014] It is possible to provide: a management device, a management method, and an acidic gas adsorption system that are easy to manage an acidic gas adsorption device and can reduce costs when separating and recovering an acidic gas using the acidic gas adsorption device. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a diagram showing a CCUS cycle.

[0016] Figure 2 It is a diagram showing a CO 2 adsorption system for operating and managing a DAC system.

[0017] Figure 3 Among them, (a) is a diagram showing the configuration of the DAC system, (b) is a cross-sectional view of the CO 2 adsorption device and is a diagram showing the structure of the CO 2 adsorption device, and (c) is a diagram explaining the operation of the DAC system.

[0018] Figure 4 It is a block diagram showing the functional configuration of the management device.

[0019] Figure 5 It is a diagram showing the data structure when data is saved in the storage unit.

[0020] Figure 6 It is a diagram showing the 2 conceptual diagram of the management method of the CO adsorption device.

[0021] Figure 7 It is a diagram explaining the 2 regeneration period of the CO adsorption device.

[0022] Figure 8 It is a diagram showing a chart representing the 2 regeneration history of the CO adsorption device.

[0023] Figure 9 Among them, (a) to (b) are diagrams showing examples of regular reports.

[0024] Figure 10 It is a flowchart explaining the operation of the CO 2 adsorption system. Detailed Description of the Invention

[0025] Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

[0026] As a representative example of efforts to separate and recover carbon dioxide, a carbon dioxide capture, utilization, and storage (CCUS) cycle is known. In the CCUS cycle, it is desired to reuse the separated and recovered carbon dioxide to achieve a carbon-neutral society based on the recycling of carbon dioxide.

[0027] <Description of the CCUS Cycle>

[0028] Figure 1 It is a diagram showing the CCUS cycle S.

[0029] In the illustrated CCUS cycle S, carbon dioxide discharged from waste treatment plants, thermal power plants S1, etc. is separated and recovered using a 2 separation membrane (CO 2 separation and recovery).

[0030] In addition, regarding carbon dioxide present in the atmosphere, it is adsorbed using a DAC (Direct Air Capture) system S2 (atmospheric CO 2 adsorption).

[0031] Furthermore, the recovered carbon dioxide is stored underground, for example (CO 2 underground storage). Additionally, for example, in an oil well S3, EOR (Enhanced Oil Recovery) is used to recover crude oil. That is, carbon dioxide is injected underground to cause the crude oil to flow towards the oil well S3. This is also known as the carbon dioxide injection method. At this time, the injected carbon dioxide is taken out from underground together with the crude oil. However, at this time, a carbon dioxide (CO 2 ) separation membrane is used to separate the crude oil and carbon dioxide. The separated carbon dioxide is used to be injected underground again.

[0032] In addition, the recovered carbon dioxide is supplied to a SOEC (Solid Oxide Electrolysis Cell) S4 together with water, for example, and through electrolysis, carbon monoxide (CO) and hydrogen (H 2 ) are produced (water·CO 2 electrolysis). And using this hydrogen, or the hydrogen contained in natural gas or biogas, a methanation device or a methanol production device S5 is used to synthesize carbon dioxide and hydrogen (methanation, methanol synthesis), generating methane (CH 4 ) or methanol (CH 3 OH) (CO 2 resource recovery). The generated methane or methanol can be used as a fuel or a raw material for chemical products. And the waste is burned in a waste treatment plant, a thermal power plant S1, for example. However, the carbon dioxide discharged at this time can be recycled in the CCUS cycle S. In addition, when used as a fuel, for example, it is adsorbed using forests, the DAC system S2.

[0033] <Explanation of the CO 2 adsorption system 1>

[0034] Figure 2 FIG. shows a CO 2 adsorption system 1 for operating and managing the DAC system S2.

[0035] CO2 Adsorption system 1 is an example of an acid gas adsorption system. 2 In the adsorption system 1, there are three DAC systems S2, and the CO 2 The terminal devices 20A, 20B, 20C held by the collectors K1, K2, K3, and the CO of the DAC system S2 are 2 Adsorption device 12 (refer to Figure 3 ) Regenerated CO 2 The terminal device 21 held by the adsorption device regenerator R1 and the CO 2 The management device 30 for managing the entire adsorption system 1 is connected via a network 40. In this embodiment, CO 2 Recyclers K1, K2, and K3 are examples of acid gas recyclers. 2 The adsorption device regenerator R1 is an example of an acid gas adsorption device regenerator. 2 There are three collectors K1, K2, and K3, and correspondingly, there are three DAC systems S2, terminal devices 20A, 20B, and 20C. However, the number of these can be any number, which can be one or more. 2 The recycler can operate multiple DAC systems S2. 2 The number of adsorption device regenerators R1 is one or more. 2 When the recyclers K1, K2, and K3 are distinguished, they may be simply referred to as "CO 2 recyclers” and, sometimes, CO 2 Adsorption unit regenerator R1 is only called "CO 2 Adsorption device regenerator". In addition, when the terminal devices 20A, 20B, and 20C are not distinguished from each other, they may be simply referred to as "terminal device 20".

[0036] The terminal device 20 is: CO 2 The terminal device 20 is a device for the collector to understand the operating status of the DAC system S2. The terminal device 20 will be described in detail below. It displays a periodic report that allows the collector to know the amount of carbon dioxide recovered. The periodic report is created by the management device 30 and sent to the terminal device 20. By viewing the periodic report, CO 2 The collector can grasp the amount of carbon dioxide recovered in the DAC system S2.

[0037] Terminal device 21 is: CO 2 Adsorption device regenerator is used to control CO 2Device for the regeneration period of the adsorption device 12. Regarding the terminal device 21, which will be described in detail below, a notice regarding the regeneration period is displayed by the management device 30.

[0038] The terminal devices 20 and 21 are: computer devices such as general-purpose personal computers (PCs), mobile computers, mobile phones, smartphones, and tablet computers. Also, the terminal devices 20 and 21 operate various application software under the management of an OS (Operating System).

[0039] Regarding the management device 30, which will be described in detail below, it is a server computer that manages the entire adsorption system 1. 2

[0040] It should be noted that although one management device 30 is shown in the figure, its functions can be implemented using multiple server computers.

[0041] The terminal devices 20 and 21 and the management device 30 include: a processor such as a CPU (Central Processing Unit) as an arithmetic unit, and a main storage unit as a storage unit. Here, the processor executes various software such as an OS (basic software) and application programs (application software). In addition, the main storage unit is a storage area that stores various software, data for its execution, etc. Furthermore, the terminal devices 20 and 21 and the management device 30 include: a communication interface (hereinafter referred to as "communication I / F") for communicating with the outside, a display mechanism composed of a video storage unit, a display, etc., and an input mechanism such as an input button, a touch panel, and a keyboard. Also, in the terminal devices 20 and 21 and the management device 30, as an auxiliary storage device, a memory is provided. The memory is, for example, an HDD (Hard Disk Drive) or an SSD (Solid State Drive).

[0042] The network 40 is a communication mechanism for information communication between the DAC system S2, the terminal devices 20 and 21, and the management device 30, and is, for example, the Internet, a LAN (Local Area Network), or a WAN (Wide Area Network). The communication line for information communication can be wired or wireless, or both can be used in combination. Also, the DAC system S2, the terminal devices 20 and 21, and the management device 30 can be connected via multiple networks and communication lines using a relay device such as a gateway device or a router.

[0043] <Description of the DAC System S2>

[0044] Next, the DAC system S2 will be described in detail.

[0045] Figure 3 Figure (a) in shows the configuration of the DAC system S2.

[0046] The DAC system S2 includes: a blower 11 that conveys air; a CO 2 adsorption device 12 that adsorbs carbon dioxide; CO 2 concentration sensors 13A and 13B that measure the concentration of carbon dioxide; a pump 14 that conveys carbon dioxide; an intermediate tank 15 that stores carbon dioxide; and a compressor 16 that liquefies carbon dioxide. However, depending on the type of the DAC system S2, any one or all of the pump 14, the intermediate tank 15, and the compressor 16 may not be used sometimes.

[0047] The blower 11 is a device that sends air, which is an example of a gas, into the CO 2 adsorption device 12. There is no particular limitation on the blower 11. For example, a normal fan can be used. The fan has an impeller that has a plurality of blade plates (Propellers) and rotates around a main shaft, and the rotational driving force of a motor such as a motor is transmitted to the impeller through the main shaft, thereby performing air blowing. As such a blower 11, depending on the type of the impeller, there are types such as a sirocco fan, a turbo fan, a ventilation fan, and an axial fan.

[0048] CO 2 The adsorption device 12 is an example of an acidic gas adsorption device and is a device that adsorbs carbon dioxide in the air sent by the blower 11.

[0049] CO 2 The adsorption device 12 has, for example, a filtration structure, a particle structure, or an alkali solution structure such as a honeycomb or a filter cloth. And when air passes through the CO 2 adsorption device 12, carbon dioxide is adsorbed.

[0050] Figure 3 Figure (b) in is a cross-sectional view of the CO 2 adsorption device 12 and is a figure showing the structure of the CO 2 adsorption device 12.

[0051] As shown in Figure 3 Figure (b) in , the CO 2 adsorption device 12 includes: a base material 121 and a CO 2 adsorption layer 122 formed on the surface of the base material 121. In addition, the CO 2 adsorption layer 122 contains a CO 2 adsorption material 122a that adsorbs carbon dioxide. The CO 2 adsorption layer 122 is an example of an acidic gas adsorption layer. In addition, the CO 2The adsorption material 122a is an example of an acidic gas adsorption material. In this case, CO 2 The adsorption layer 122 can be formed only of the CO Figure 3 adsorption material 122a as shown in the upper part of (b) in 2 , or can be formed in such a manner that the CO Figure 3 adsorption material 122a is dispersed in the carrier 122b as shown in the lower part of (b) in 2 .

[0052] Typically, the base material 121 can be a ceramic. Examples of the ceramic include: silicon carbide, silicon-silicon carbide composite material, cordierite, mullite, alumina, silicon nitride, spinel, silicon carbide-cordierite composite material, lithium aluminum silicate, and aluminum titanate. The constituent materials can be used alone or in combination.

[0053] Regarding the CO 2 adsorption material 122a, examples include: nitrogen-containing compounds; alkali compounds such as sodium hydroxide and potassium hydroxide; carbonates such as calcium carbonate and potassium carbonate; bicarbonates such as calcium bicarbonate and potassium bicarbonate; metal-organic frameworks (MOF) such as MOF-74, MOF-200, and MOF-210; zeolites; activated carbon; nitrogen-doped carbon; and ionic liquids. The carbon dioxide adsorption materials can be used alone or in combination.

[0054] However, the CO 2 adsorption material 122a is preferably a nitrogen-containing compound. More specifically, examples of the nitrogen-containing compound include: primary amines such as monoethanolamine and polyvinylamine; secondary amines such as diethanolamine, cyclic amines, and N-(3-aminopropyl)diethanolamine; tertiary amines such as methyldiethylamine and triethanolamine; ethylenediamine compounds such as tetraethylenepentamine; aminosilane coupling agents such as aminopropyltrimethoxysilane, 3-aminopropyltriethoxysilane, N-(2-aminoethyl)-3-aminopropyl-trimethoxysilane, and polyethyleneimine-trimethoxysilane; imine compounds such as ethyleneimine, linear polyethyleneimine, and branched polyethyleneimine having primary to tertiary amino groups; piperazine compounds such as 1-(2-hydroxyethyl)piperazine; amide compounds such as polyamidoamine; polyvinylamine; and organic / inorganic compounds having an amino group as a substituent.

[0055] Regarding the CO 2 adsorption material 122a, the above materials can be used alone or in combination. It should be noted that as the adsorption form, it can be physical adsorption like activated carbon or chemical adsorption like nitrogen-containing compounds.

[0056] The carrier 122b is a porous carrier, for example, such as metal-organic frameworks (MOFs) such as MOF-74, MOF-200, and MOF-210; activated carbon; nitrogen-doped carbon; mesoporous silica; mesoporous alumina; zeolite; carbon nanotubes; and fluorinated resins such as polyvinylidene fluoride (PVDF). The porous carriers can be used alone or in combination. The porous carrier is preferably made of a material different from that of the CO 2 adsorbent material 122a.

[0057] It should be noted that Figure 3 the CO shown in (b) of 2 adsorption layer 122 is formed on one of the two main surfaces of the substrate 121, and can also be formed on the other. That is, the CO 2 adsorption layer 122 can also be formed on both sides of the substrate 121.

[0058] CO 2 The CO concentration sensors 13A and 13B are an example of a concentration measuring mechanism, and are sensors for measuring the concentration of carbon dioxide contained in the air. Among them, the CO 2 concentration sensor 13A is provided on the inlet side where air flows into the CO 2 adsorption device 12. Thus, it can be said that the CO 2 concentration sensor 13A measures the concentration of carbon dioxide when the air containing carbon dioxide is introduced into the CO 2 adsorption device 12, that is, the first concentration. On the other hand, the CO 2 concentration sensor 13B is provided on the outlet side where air flows out of the CO 2 adsorption device 12. Thus, it can be said that the CO 2 concentration sensor 13B measures the concentration of carbon dioxide after being processed by the CO 2 adsorption device 12, that is, the second concentration.

[0059] As the CO 2 concentration sensors 13A and 13B, any sensor capable of measuring the concentration of carbon dioxide can be used, and there is no particular limitation. The CO 2 concentration sensors 13A and 13B can use, for example, concentration sensors of the NDIR (Non Dispersive InfraRed) method. That is, since carbon dioxide absorbs infrared rays with a wavelength of 4.26 μm, the amount of infrared rays transmitted through the air is attenuated due to the concentration of carbon dioxide contained in the air. Thus, by measuring the intensity of the infrared rays passing through the air at a predetermined distance from the lamp emitting the infrared rays of this wavelength, the concentration of carbon dioxide can be measured.

[0060] After passing through the CO 2The air processed by the adsorption device 12 is released into the atmosphere. Additionally, when desorbing the carbon dioxide adsorbed by the CO 2 adsorption device 12, it is transported by the pump 14.

[0061] The purpose of setting the pump 14 is to send the desorbed carbon dioxide to the intermediate tank 15 when desorbing the carbon dioxide adsorbed by the CO 2 adsorption device 12. The pump 14 only needs to be able to send out gaseous carbon dioxide and is not particularly limited. For example, it can be a rotary pump.

[0062] The intermediate tank 15 temporarily stores the carbon dioxide sent by the pump 14. The pressure inside the intermediate tank 15 can be, for example, normal pressure of 1 bar.

[0063] The compressor 16 liquefies the gaseous carbon dioxide by compressing it. And the compressor 16 sends out the liquefied carbon dioxide for utilization in the CCUS cycle. The pressure of the carbon dioxide liquefied by the compressor 16 can be, for example, above the liquefaction pressure.

[0064] Figure 3 (c) in is a diagram illustrating the operation of the DAC system S2.

[0065] Here, it is shown that the DAC system S2 operates by performing CO 2 adsorption, replacement, CO 2 desorption, and cooling.

[0066] “CO 2 adsorption”, the blower 11 is operated to send air to the CO 2 adsorption device 12. Thus, the carbon dioxide in the air comes into contact with the CO 2 adsorption layer 122 of the adsorption device 12. And the carbon dioxide is adsorbed by the CO 2 adsorption material 122a in the adsorption layer 122. It should be noted that this can also be called the carbon dioxide adsorption process. And the air passing through the CO 2 adsorption device 12 is released into the atmosphere. At this time, the temperature of the air sent to the CO 2 adsorption device 12 is, for example, 25 °C, and the humidity is, for example, 40% RH. Additionally, the concentration of carbon dioxide in the air is, for example, 400 ppm. Also, the temperature of the air passing through the CO 2 adsorption device 12 is, for example, 25 °C, and the pressure is normal pressure of 1 bar. And in the CO 2 adsorption device 12, for example, the CO 2 adsorption process is carried out for 10 minutes or more, preferably 1 hour. 2 adsorption device 12, for example, the CO 2 adsorption treatment is carried out for 10 minutes or more, preferably 1 hour.

[0067] “Replacement”, for the CO2 The adsorption device 12 is depressurized. Alternatively, a method of introducing gases such as carbon dioxide and water vapor can also be provided. Thereby, the air in the CO 2 after the adsorption treatment of CO 2 in the adsorption device 12 can be replaced, so that the CO 2 concentration during desorption can be increased. However, according to the DAC system S2, the replacement treatment may sometimes be omitted. It should be noted that this can also be referred to as the carbon dioxide replacement process. At this time, in the CO 2 adsorption device 12, the replacement is carried out, for example, at a temperature of 25 °C and a pressure of 1 bar or less. 2 In the adsorption device 12, the replacement is carried out, for example, at a temperature of 25 °C and a pressure of 1 bar or less.

[0068] In addition, at this time, "CO 2 desorption" can be carried out. During "CO 2 desorption", the adsorption device 12 for CO 2 is depressurized and heated. In addition, sometimes only depressurization or only heating is carried out. It should be noted that this can also be referred to as the carbon dioxide desorption process. At this time, in the CO 2 adsorption device 12, the replacement is carried out, for example, at a temperature of 120 °C or less and a pressure of 1 bar.

[0069] In this way, through heating, depressurization, temperature change, etc., the carbon dioxide adsorbed on the CO 2 adsorption device 12 is detached and returns to the gaseous state.

[0070] In addition, during "cooling", the CO 2 adsorption device 12 is cooled. Thereby, the CO 2 adsorption device 12 becomes a state capable of adsorbing carbon dioxide again. It should be noted that this can also be referred to as the cooling process. At this time, in the CO 2 adsorption device 12, the temperature reaches 25 °C and the pressure reaches 1 bar of atmospheric pressure. And in the CO 2 adsorption device 12, for example, the cooling is carried out for 10 minutes or more. In addition, sometimes the cooling process and the adsorption process are combined.

[0071] Thereby, it becomes a state capable of adsorbing carbon dioxide again. That is, "CO 2 adsorption" can be carried out again. And by repeating the above processes, carbon dioxide can be recovered using the DAC system S2.

[0072] However, the CO 2 adsorbent material 122a has a lifespan. In this case, it is necessary to regenerate the CO 2 adsorption device 12. By regenerating the CO 2 adsorption device 12, the cost required for carbon dioxide recovery can be reduced. However, for the CO 2In the adsorption device 12, CO 2 The lifespan of the adsorption material 122a is shorter than that of the base material 121. Thus, when regenerating the CO 2 adsorption device 12, the base material 121 is directly reused, and a new CO 2 adsorption layer 122 containing the adsorption material 122a for CO is formed again. It should be noted that this can also be referred to as the regeneration process of the CO 2 adsorption device 12. 2

[0073] When reforming the CO 2 adsorption layer 122, it can be carried out by either removing the used CO 2 adsorption layer 122 that has reached the end of its lifespan and then forming a new CO 2 adsorption layer 122, or forming a new CO 2 adsorption layer 122 without removing the used CO 2 adsorption layer 122. The former is a method of removing the used old CO 2 adsorption layer 122 and then reforming a new CO 2 adsorption layer 122 on the base material 121. Additionally, the latter is a method of reforming a new CO 2 adsorption layer 122 on the used old CO 2 adsorption layer 122 by overcoating. It should be noted that the process of removing the CO 2 adsorption layer 122 that has adsorbed carbon dioxide can also be referred to as the removal process of the CO 2 adsorption layer 122. Moreover, the process of reforming the CO 2 adsorption layer 122 on the base material 121 can also be referred to as the reforming process of the CO 2 adsorption layer 122.

[0074] Regarding the removal of the used CO 2 adsorption layer 122 that has reached the end of its lifespan, methods such as the burning method, acid dissolution method, and alkali dissolution method can be used.

[0075] Regarding the burning method, the CO 2 adsorption device 12 is heated to burn and remove the CO 2 adsorption layer 122. Regarding the heating temperature, for example, the lower limit is 400 °C or higher, preferably 500 °C or higher, and the upper limit is 700 °C or lower, preferably 650 °C or lower. Regarding the heating time, it is sufficient to be able to remove the CO 2 adsorption layer 122, and there is no particular limitation. For example, it is 1 hour or more and 48 hours or less.

[0076] Regarding the acid dissolution method, an acidic solution is passed through the CO 2 adsorption device 12 to dissolve the CO 2The adsorption layer 122 is dissolved in an acidic solution and thus removed. As the acidic solution, aqueous solutions such as hydrofluoric acid, sulfuric acid, nitric acid, hydrochloric acid, and phosphoric acid can be cited.

[0077] Regarding the alkali dissolution method, an alkali solution is passed through the CO 2 adsorption device 12 to dissolve the CO 2 adsorption layer 122 in the alkali solution and thus remove it. As the alkali solution, aqueous solutions such as sodium hydroxide and potassium hydroxide can be cited.

[0078] Regarding reforming a new CO 2 adsorption layer 122, first, the CO 2 adsorbent material 122a and the carrier 122b are put into a dispersion medium and stirred. Thereby, a coating solution in which the CO 2 adsorbent material 122a and the carrier 122b are dispersed in the dispersion medium can be prepared. As the dispersion medium, for example, polar solvents represented by water, alcohols, diols, NMP (N-methyl-2-pyrrolidone), and DMSO (dimethyl sulfoxide) can be cited. Then, the coating solution is coated and dried. Additionally, sintering is further performed as needed. Thereby, a new CO 2 adsorption layer 122 can be formed.

[0079] <Explanation of the management device 30>

[0080] Next, the management device 30 will be described in detail.

[0081] Figure 4 is a block diagram showing the functional configuration of the management device 30.

[0082] The illustrated management device 30 includes: a concentration acquisition unit 31 that acquires the concentration of carbon dioxide; a recovery amount calculation unit 32 that calculates the concentration of carbon dioxide; a management unit 33 that manages the CO 2 adsorption device 12; a storage unit 34 that stores data related to the CO 2 adsorption device 12; and a notification unit 35 that notifies the terminal devices 20 and 21.

[0083] The concentration acquisition unit 31 acquires the first concentration, which is the carbon dioxide concentration on the inlet side of the CO 2 adsorption device 12, and the second concentration, which is the carbon dioxide concentration on the outlet side of the CO 2 adsorption device 12.

[0084] The recovery amount calculation unit 32 calculates the recovery amount of carbon dioxide adsorbed by the CO 2 adsorption device 12 based on the first concentration and the second concentration.

[0085] In this case, the recovery amount calculation unit 32 first calculates the recovery rate of carbon dioxide adsorbed by the CO 2 adsorption device 12 using the following formula (1).

[0086] (Recovery rate) = (Inlet CO 2 concentration - Outlet CO 2 concentration) / (Inlet CO 2 concentration)…(1)

[0087] Then, the recovery amount calculation unit 32 calculates the hourly recovery amount using the following formula (2).

[0088] (Hourly recovery amount) = (Hourly flow rate) / 22.4 (L / mol) × 44 (g / mol) × (Inlet CO 2 concentration) × (Recovery rate)…(2)

[0089] The hourly flow rate can be calculated using (Flow velocity) × (Cross-sectional area of the CO 2 adsorption device 12). In addition, 22.4 (L / mol) is the volume of the gas under standard conditions, and 44 (g / mol) is the molecular weight of carbon dioxide.

[0090] Moreover, the daily recovery amount can be calculated by accumulating the hourly recovery amount.

[0091] In this way, the recovery amount calculation unit 32 calculates the recovery amount based on the first concentration, the second concentration, and the flow rate of carbon dioxide.

[0092] In addition, at this time, the recovery amount calculation unit 32 can calculate the recovery amount considering at least one of the temperature, humidity, and air pressure of carbon dioxide. That is, since the volume of air changes according to temperature and air pressure, it is corrected. In addition, the adsorption capacity of carbon dioxide in the CO 2 adsorption device 12 changes according to humidity, so it is corrected.

[0093] The first concentration obtained from the concentration acquisition unit 31, the second concentration, and the recovery amount calculated by the recovery amount calculation unit 32 are stored in the storage unit 34.

[0094] Figure 5 FIG. is a diagram showing the data structure when these data are stored in the storage unit 34.

[0095] Here, a case is shown where the data obtained by the concentration acquisition unit 31 from the CO 2 adsorption device 12 is saved as a chart T1.

[0096] The illustrated chart T1 is for multiple CO 2The adsorption device 12 is established separately. Here, a case is shown where the graph T1 is established for three COs represented by the adsorption device A, the adsorption device B, and the adsorption device C. 2 The case of establishing the graph T1 for the adsorption device 12.

[0097] The graph T1 includes: the air flow velocity, the inlet CO concentration (CO conc. Inlet), the outlet CO concentration (CO conc. Outlet), the capture ratio, the temperature, the relative humidity, the air pressure, the amount of CO captured in one hour (Captured CO in one hour), and the amount of CO captured in one day (Captured CO in one day) at the time (Time) of obtaining various data. 2 concentration (CO 2 conc.Inlet), the outlet CO 2 concentration (CO 2 conc.Outlet), the capture ratio, the temperature (Temp), the relative humidity (Humidity), the air pressure (Air Pressure), the amount of CO captured in one hour (Captured CO 2 in onehour), and the amount of CO captured in one day (Captured CO 2 in one day) of each data.

[0098] The air flow velocity is the air flow velocity sent to the CO adsorption device 12. In addition, the inlet CO concentration is the first concentration, which is the CO concentration on the inlet side of the CO adsorption device 12. Further, the outlet CO concentration is the second concentration, which is the CO concentration on the outlet side of the CO adsorption device 12. 2 The air flow velocity is the air flow velocity sent to the CO adsorption device 12. In addition, the inlet CO 2 concentration is the CO 2 concentration on the inlet side of the CO 2 adsorption device 12, that is, the first concentration. In addition, the outlet CO 2 concentration is the CO 2 concentration on the outlet side of the CO 2 adsorption device 12, that is, the second concentration.

[0099] In addition, the capture ratio represents the ratio that can be adsorbed by the CO adsorption device 12 relative to the carbon dioxide contained in the air. In addition, the temperature, the relative humidity, and the air pressure are the temperature, the humidity, the relative humidity, and the air pressure of the air sent to the CO adsorption device 12. The amount of CO captured in one hour and the amount of CO captured in one day are the amount of CO captured per hour and the amount of CO captured per day, respectively. 2 adsorption device 12. In addition, the temperature, the relative humidity, and the air pressure are the temperature, the humidity, the relative humidity, and the air pressure of the air sent to the CO 2 adsorption device 12. The amount of CO captured in one hour and the amount of CO captured in one day are the amount of CO captured per hour and the amount of CO captured per day, respectively.

[0100] Return to Figure 4 The management unit 33 determines the regeneration period of the CO adsorption device 12 based on the amount of CO captured calculated by the amount of CO captured calculation unit 32, and performs management of replacing and regenerating the CO 2 adsorption device 12. 2 adsorption device 12.

[0101] Figure 6 It is a conceptual diagram showing the management method of the CO 2 adsorption device 12.

[0102] In this embodiment, the management unit 33 determines the regeneration timing of the CO 2 adsorption device 12 based on the recovery amount calculated by the recovery amount calculation unit 32. And, the management unit 33 stores the regeneration timing in the Data base (database) of each CO 2 adsorption device 12 in the figure. This Data base corresponds to the storage unit 34 of the management device 30. 2

[0103] Figure 7 It is a diagram for explaining the regeneration timing of the CO 2 adsorption device 12.

[0104] Figure 7 In, the horizontal axis represents time (month), and the vertical axis represents the average recovery rate per month.

[0105] As shown in the figure, the average recovery rate of the CO 2 adsorption device 12 decreases over time due to the aging deterioration of the CO 2 adsorbent material 122a. And, the actual average recovery rate is represented by a solid line broken line (actual). In addition, the predicted average recovery rate is represented by a dotted line broken line (predicted). And, as a regeneration implementation threshold, an average recovery rate of 75% is set. When the actual average recovery rate is lower than the regeneration implementation threshold, it is set as the time when the CO 2 adsorption device 12 must be replaced. In addition, the area where the average recovery rate is 75% or more and 85% or less is set as the alarm range. When the actual average recovery rate is within the alarm range, it is set as the time when it is recommended to replace the CO 2 adsorption device 12.

[0106] Accordingly, when the actual average recovery rate is lower than the regeneration implementation threshold, as the regeneration timing, it becomes "immediately". In addition, when the actual average recovery rate is within the alarm range, as the regeneration timing, although it is not necessary to replace immediately, however, since the life is approaching, the replacement operation can be performed according to efficiency.

[0107] Return to Figure 6 , the management unit 33 manages the multiple CO 2 adsorption devices 12 based on the regeneration timing. Here, the CO 2 reclaimer makes a contract with the technician who regenerates the CO 2 adsorption device 12, etc., that is, the CO 2 adsorption device regenerator. In this case, the CO 2 adsorption device regenerator manages the replacement and regeneration timing of the CO 2 reclaimer for the CO 2 adsorption device 12 and upgrades it to the latest capacity CO​2 Update of the adsorption material 122a. In addition, CO 2 The recycler pays the regeneration cost regularly or when replacing the CO 2 adsorption device regenerator.

[0108] And, according to this contract, the management department 33 conducts the management of the CO 2 adsorption device 12. Specifically, based on the determined regeneration period, the management of the replacement of each CO 2 adsorption device 12 is carried out. In the case where the CO 2 adsorption device 12 has been replaced, the management department 33 conducts the management of the regeneration history of the CO 2 adsorption device 12. The regeneration history of the CO 2 adsorption device 12 is stored in the storage unit 34 corresponding to the Data base. CO 2 The regeneration history of the adsorption device 12 is managed in a data structure such as the following chart T2.

[0109] Figure 8 It is a diagram showing the chart T2 representing the regeneration history of the CO 2 adsorption device 12.

[0110] At the time (Time) of replacing the adsorption device A of the CO 2 adsorption device 12 as the adsorption device 12, the substrate 121 and the CO 2 adsorption material 122a are respectively managed for the type, Lot number (batch number), and implementation of the replacement. That is, the management department 33 manages the regeneration history of the substrate 121 and the CO 2 adsorption material 122a respectively.

[0111] "Type" indicates the new and old of the substrate 121 and the CO 2 adsorption material 122a. And the management department 13 manages the type determined according to the types of the substrate 121 and the CO 2 adsorption material 122a. And at the time of regenerating the CO 2 adsorption device 12, the CO 2 adsorption material 122a used is determined according to this type. That is, at the time of regenerating the CO 2 adsorption device 12, when there is a CO 2 adsorption material 122a that is newer than the previously used CO 2 adsorption material 122a, the new CO 2 adsorption material 122a is used for regeneration.

[0112] "Replacement implementation" indicates whether it is replaced with a new one during regeneration. In this case, "Yes" means it has been replaced with a new one, and "No" means it is used directly without replacement.

[0113] In addition, the management unit 33 can further perform CO 2 management of the concentration sensors 13A and 13B. In this case, the management is the calibration management of the CO 2 concentration sensors 13A and 13B. If there is an error in the measured values of the CO 2 concentration sensors 13A and 13B, the recovered amount of carbon dioxide calculated based on this will also have an error. When conducting carbon dioxide emission rights trading based on this recovered amount, the recovered amount needs to be accurate. Therefore, in order to guarantee the accuracy of the CO 2 concentration sensors 13A and 13B, calibration of the CO 2 concentration sensors 13A and 13B is required. Therefore, in the management unit 33, the management of the CO 2 concentration sensors 13A and 13B is also carried out, and the measurement accuracy is guaranteed by issuing a calibration certificate. Specifically, the calibration period of the CO 2 concentration sensors 13A and 13B is managed, and the calibration period is set at each predetermined time (for example, every year, etc.).

[0114] The notification unit 35 notifies the CO 2 adsorption device regenerator of the regeneration period of the CO 2 adsorption device 12. In fact, the notification unit 35 notifies the terminal device 21 (refer to 2 ) of the CO Figure 2 adsorption device regenerator, and the CO 2 adsorption device regenerator receives this notification on the terminal device 21.

[0115] In this case, as Figure 7 shown, when the actual average recovery rate is lower than the regeneration implementation threshold, the notification unit 35 notifies that it is the time to replace the CO 2 adsorption device 12. In addition, when the actual average recovery rate is within the alarm range, the notification unit notifies that it is the time to recommend replacing the CO 2 adsorption device 12. It should be noted that at this time, it can also be based on the Figure 7 shown predicted average recovery rate to notify the time to replace the CO 2 adsorption device 12.

[0116] In addition, as Figure 6 shown, the management device 30 enables the CO 2 carbon dioxide recycler to grasp the CO 2 recovered amount. This is achieved by the notification unit 35 for the CO2 The recycler makes a notification of the recycling quantity. The notification of the recycling quantity is made, for example, in the form of a regular report. Actually, the notification unit 35 sends a regular report to the 2 terminal device 20 of the recycler (refer to Figure 2 ), and the recycler receives the regular report at the terminal device 20. 2 Figures (a) to (b) in

[0117] Figure 9 are diagrams showing examples of the regular report.

[0118] Here, in (a) of Figure 9 , the horizontal axis represents time, and the vertical axis represents the CO 2 recycling quantity per hour and the average CO 2 recovery rate per hour. Figure 9 Figure (a) in Figure 9 shows the changes in the recycling quantity and the recovery rate during one day. In addition, 2 in (b) of Figure 9 , the horizontal axis represents time, and the vertical axis represents the CO

[0119] <Explanation of the operation of the CO 2 adsorption system 1>

[0120] Figure 10 is a flowchart for explaining the operation of the CO 2 adsorption system 1.

[0121] First, the CO 2 adsorption device 12 outputs the results of the CO 2 concentration sensors 13A and 13B (inlet / outlet sensors) (step S101). That is, the CO 2 adsorption device 12 outputs the carbon dioxide concentration on the inlet side of the CO 2 adsorption device 12, that is, the first concentration, and the carbon dioxide concentration on the outlet side, that is, the second concentration. In addition, the data of the time, flow rate, temperature, relative humidity, and atmospheric pressure shown in the Figure 5 chart T1 are included in the result output.

[0122] Next, the concentration acquisition unit 31 of the management device 30 acquires the result output from the CO 2 adsorption device 12 and stores it in the storage unit 34 (step S102). This is stored in the form of Figure 5 the chart T1.

[0123] In addition, the recovery amount calculation unit 32 of the management device 30 removes noise components from the result output by means of a moving average processing method or the like (step S103). Thereby, noise components are removed from the data of the first concentration and the second concentration.

[0124] Moreover, the recovery amount calculation unit 32 of the management device 30 calculates the recovery rate of carbon dioxide, the management unit 33 of the management device 30 creates a regular report, and the notification unit 35 sends the regular report to the carbon dioxide 2 reclaimer (step S104).

[0125] Then, the recovery amount calculation unit 32 of the management device 30 calculates the recovery rate, and the management unit 33 determines whether the recovery rate is above a threshold value (step S105). This threshold value is Figure 7 the regeneration implementation threshold value described in

[0126] As a result, when the recovery rate is above the threshold value (YES in step S105), the carbon dioxide 2 adsorption device 12 is directly used (step S106).

[0127] In contrast, when the recovery rate is lower than the threshold value (NO in step S105), the management unit 33 determines that it is the regeneration time of the carbon dioxide 2 adsorption device 12, and the notification unit 35 sends an alarm notification to the carbon dioxide 2 adsorption device regenerator (step S107). That is, the notification unit 35 sends a regeneration time notification to the carbon dioxide 2 adsorption device regenerator.

[0128] In addition, when the carbon dioxide 2 adsorption device regenerator replaces the carbon dioxide 2 adsorption device 12, the used carbon dioxide 2 adsorption device 12 is regenerated. At this time, the management unit 33 stores the regeneration history of the carbon dioxide Figure 8 adsorption device 12 in the form of a chart T2 like 2 that. The carbon dioxide 2 adsorption device regenerator determines whether the carbon dioxide 2 adsorbent material 122a is the latest based on this regeneration history (step S108).

[0129] As a result, when it is the latest (YES in step S108), the carbon dioxide 2 adsorption device regenerator uses the current carbon dioxide 2 adsorbent material 122a to perform the regeneration operation of the carbon dioxide 2 adsorption device 12 (step S109).

[0130] In contrast, when it is not the latest (NO in step S108), the carbon dioxide2 The adsorbent device regenerator uses the latest CO 2 to regenerate the adsorbent material 122a for CO 2 and performs the regeneration operation of the adsorbent device 12 (step S110).

[0131] Then, for the CO 2 after the adsorbent device regenerator performs the regeneration operation of the adsorbent device 12, the regenerative history stored in the management device 30 is input (step S111). Actually, for the CO 2 the adsorbent device regenerator inputs the details of the regeneration operation on the terminal device 21 (refer to 2 ). The input data is sent to the management device 30, where it is stored as a regenerative history in the form of Figure 2 the chart T2 as shown. Figure 8

[0132] <Explanation of effects>

[0133] According to the method described above, by managing the CO 2 adsorbent device 12 on time, it is possible to replace each CO 2 adsorbent device 12 at an appropriate timing. Therefore, the management of the CO 2 adsorbent device 12 is easy, and costs can be reduced.

[0134] In addition, according to the method described above, multiple CO 2 recyclers pay the reuse fee to the CO 2 adsorbent device regenerator regularly or each time, and entrust the replacement, recycling, and management of the CO 2 adsorbent device 12. Since the CO 2 adsorbent device regenerator is entrusted with many cases, it can respond efficiently, and thus can provide the replacement and management of the CO 2 adsorbent device 12 at low cost.

[0135] Furthermore, by multiple CO 2 recyclers paying the reuse fee to the CO 2 adsorbent device regenerator regularly or each time, the latest CO 2 adsorbent material 122a is always updated at the time of replacement. Through the CO 2 adsorbent device regenerator, it is also possible to apply the latest CO 2 adsorbent material 122a to many cases, and thus can provide the CO 2 adsorbent material 122a at low cost. In addition, at this time, a planned regeneration plan for the CO Figure 7 adsorbent device 12 can be formulated based on the predicted average recovery rate shown in 2 . Therefore, for the CO 2 ​CO retained by the adsorbent device regenerator 2 The inventory of the adsorbent material 122a can also be suppressed. Even when CO 2 is replaced with new adsorbent material 122a, the generation of old CO can be suppressed 2 and the slow-moving inventory of the adsorbent material 122a can be reduced.

[0136] Moreover, by having multiple CO 2 recyclers pay fees to the CO 2 adsorbent device regenerator regularly or each time, it is also possible to commission the management and calibration services of the surrounding measurement equipment including the CO 2 concentration sensors 13A and 13B. For CO 2 the adsorbent device regenerator is also entrusted with many cases and can respond at an efficient frequency based on the records stored in the management device 30. Therefore, it is possible to provide the replacement and management of the CO 2 adsorbent device 12 at low cost. It should be noted that as the surrounding measurement equipment other than the CO 2 concentration sensors 13A and 13B, for example, there can be mentioned: an air flow meter for measuring the flow rate, a thermometer for measuring the surrounding environment, a hygrometer, a barometer, etc.

[0137] In addition, when managing the CO 2 concentration sensors 13A and 13B, the CO 2 concentration sensors 13A and 13B are calibrated at each pre-determined period, and a calibration certificate is issued, which can ensure the carbon dioxide recovery amount.

[0138] It should be noted that as acidic gases, in addition to carbon dioxide (CO 2 ), there can also be mentioned: hydrogen sulfide (H 2 2S), sulfur oxides such as sulfur dioxide (SO 2 2), nitrogen dioxide (NO 2 2), dimethyl sulfide (DMS), hydrogen chloride (HCl).

[0139] In the above method, the case of recovering carbon dioxide in the air by adsorption has been described, but it is not limited thereto. For example, the coke oven gas discharged from the coke oven contains hydrogen sulfide. When the coke oven gas is used as a fuel, if hydrogen sulfide is contained, sulfur oxides are discharged. Since sulfur oxides are harmful, sometimes hydrogen sulfide is removed (desulfurized) in advance to avoid the generation of sulfur oxides. The above method can be applied to the case of removing hydrogen sulfide contained in the coke oven gas at this time. It should be noted that in this case, the gas is the coke oven gas and the acidic gas is hydrogen sulfide. In addition, when fossil fuels are burned, sulfur oxides are released together with carbon dioxide. At this time, sometimes it is desired to remove sulfur oxides together with carbon dioxide (desulfurization). Accordingly, the above method can also be applied to the case where it is desired to remove sulfur oxides. In this case, the gas is air and the acidic gases are carbon dioxide and sulfur oxides.

[0140] <Explanation of the management method>

[0141] Here, the processing performed by the management device 30 can be regarded as the following management method: obtaining the first concentration, which is the concentration of the acidic gas when introducing the gas containing the acidic gas into the acidic gas adsorption device that adsorbs the acidic gas, and the second concentration, which is the concentration of the acidic gas after being processed by the acidic gas adsorption device, calculating the recovery amount of the acidic gas adsorbed by the acidic gas adsorption device based on the first concentration and the second concentration, and performing management of replacing and regenerating the acidic gas adsorption device according to the regeneration period of the acidic gas adsorption device determined based on the calculated recovery amount.

[0142] The above has described the present embodiment. However, the technical scope of the present invention is not limited to the scope described in the above embodiment. From the description of the claims, it can be seen that the solutions obtained by making various changes or improvements to the above embodiment are also included in the technical scope of the present invention. For example, Figure 5 the items of various data shown, Figure 7 the average monthly recovery rate of carbon dioxide shown, Figure 8 the CO shown, 2 the regeneration history of the adsorption device 12, Figure 9 the regular report shown is an example, and the items and values shown in these figures can also be other items and other values.

[0143] Symbol Explanation

[0144] 1...CO 2 adsorption system, 12...CO 2 adsorption device, 13A, 13B...CO 2Concentration sensor, 20, 20A, 20B, 20C, 21… Terminal device, 30… Management device, 31… Concentration acquisition unit, 32… Recovery amount calculation unit, 33… Management unit, 34… Storage unit, 35… Notification unit, 121… Substrate, 122… CO 2 Adsorption layer, 122a… CO 2 Adsorbent material, 122b… Carrier, S… CCUS cycle, S2… DAC system, K1, K2, K3… CO 2 Recycler, R1… CO 2 Adsorption device regenerator.

Claims

1. A management device, comprising: a concentration acquisition unit that acquires a first concentration, which is the concentration of the acidic gas when a gas containing the acidic gas is introduced into an acidic gas adsorption device that adsorbs the acidic gas, and a second concentration, which is the concentration of the acidic gas after being processed by the acidic gas adsorption device; a recovery amount calculation unit that calculates the recovery amount of the acidic gas adsorbed by the acidic gas adsorption device based on the first concentration and the second concentration; and a management unit that manages the replacement and regeneration of the acidic gas adsorption device according to the regeneration period of the acidic gas adsorption device determined based on the calculated recovery amount.

2. The management device according to claim 1, wherein, the acidic gas adsorption device includes a substrate and an acidic gas adsorption layer formed on the surface of the substrate and containing an acidic gas adsorption material that adsorbs the acidic gas, and when regenerating the acidic gas adsorption device, a new acidic gas adsorption layer is formed.

3. The management device according to claim 2, wherein, when forming a new acidic gas adsorption layer, it is carried out by either removing the used acidic gas adsorption layer and then forming a new acidic gas adsorption layer or forming a new acidic gas adsorption layer without removing the used acidic gas adsorption layer.

4. The management device according to claim 2, wherein, the management unit manages the type determined according to the type of the acidic gas adsorption material, and when regenerating the acidic gas adsorption device, determines the acidic gas adsorption material to be used according to the type.

5. The management device according to claim 4, wherein, the type indicates the newness or oldness of the acidic gas adsorption material.

6. The management device according to claim 2, wherein, the management unit manages the regeneration history of the substrate and the acidic gas adsorption material respectively.

7. The management device according to claim 1, wherein, the management device further includes a notification unit that notifies the regenerator of the acidic gas adsorption device, who regenerates the acidic gas adsorption device, of the regeneration period.

8. The management device according to claim 7, wherein, the regeneration period includes: the period when the acidic gas adsorption device must be replaced, and the period when it is recommended to replace the acidic gas adsorption device.

9. The management device according to claim 7, wherein, the notification unit notifies the acidic gas recycler, who recycles the acidic gas, of the recovery amount.

10. The management device according to claim 1, wherein, the recovery amount is calculated based on the first concentration, the second concentration, and the flow rate of the acidic gas.

11. The management device according to claim 10, wherein, the recovery amount is calculated considering at least one of the temperature, humidity, and air pressure of the acidic gas.

12. The management device according to claim 1, It is characterized in that the management unit also manages a concentration measurement mechanism that measures the first concentration and the second concentration.

13. The management device according to claim 12, It is characterized in that the management is calibration management of the concentration measurement mechanism.

14. A management method, obtaining the concentration of the acidic gas, i.e., the first concentration, when introducing a gas containing the acidic gas into an acidic gas adsorption device that adsorbs the acidic gas, and the concentration of the acidic gas after being treated by the acidic gas adsorption device, i.e., the second concentration, calculating the recovery amount of the acidic gas adsorbed by the acidic gas adsorption device based on the first concentration and the second concentration, performing management of replacing and regenerating the acidic gas adsorption device according to the regeneration period of the acidic gas adsorption device determined based on the calculated recovery amount.

15. An acidic gas adsorption system, comprising: an acidic gas adsorption device that adsorbs acidic gas; a concentration measurement mechanism that measures the concentration of the acidic gas, i.e., the first concentration, when introducing the acidic gas into the acidic gas adsorption device, and the concentration of the acidic gas after being treated by the acidic gas adsorption device, i.e., the second concentration ； and a management device that manages the acidic gas adsorption device based on the first concentration and the second concentration, the management device comprising: a concentration acquisition unit that acquires the first concentration and the second concentration from the concentration measurement mechanism; a recovery amount calculation unit that calculates the recovery amount of the acidic gas adsorbed by the acidic gas adsorption device based on the first concentration and the second concentration; and a management unit that performs management of replacing and regenerating the acidic gas adsorption device according to the regeneration period of the acidic gas adsorption device determined based on the calculated recovery amount.

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