WO2024176743A1 - Carbon dioxide recovery system, electric power company device, and carbon dioxide recovery method - Google Patents

Abstract

A carbon dioxide recovery system of the present disclosure comprises an operator terminal, an electric power company device, and a recovery company device. A thermal power generation facility of the present disclosure comprises an equipment terminal. The equipment terminal comprises a power generation information transmitting unit that transmits a power generation performance value together with equipment identification information to the electric power company device. The electric power company device comprises: a power generation information receiving unit that receives the power generation performance value and the equipment identification information from each of a plurality of thermal power generation facilities; a recovery amount calculation unit that calculates a requested recovery amount of carbon dioxide corresponding to the power generation performance value; a request information creation unit that creates request information including the requested recovery amount; a request information transmission unit that transmits the request information to the recovery company device; an absorption value receiving unit that receives an actual recovery value of carbon dioxide from the recovery company device; a point calculation unit that calculates contribution points to be allocated to the operator terminals associated with each of the thermal power generation facilities; and a point transmitting unit that transmits the contribution points to the operator terminal.

Description

Carbon dioxide capture system, power company device, and carbon dioxide capture method

This disclosure relates to a carbon dioxide capture system, a power company device, and a carbon dioxide capture method. This application claims priority to Japanese Application No. 2023-26756, filed on February 22, 2023, and incorporates all of the contents of said Japanese application by reference.

Patent Document 1 discloses a thermal power generation system equipped with a carbon dioxide capture device that separates and captures carbon dioxide contained in the combustion exhaust gas of fossil fuels.

Non-Patent Document 1 introduces distributed power sources as small-scale power generation facilities that are distributed and placed adjacent to consumer areas. Examples of types of distributed power sources include diesel/gas engines, gas turbines, exhaust heat recovery chillers, and heat pumps, which are facilities that use fossil fuels.

Patent Document 2 discloses a method of converting and immobilizing carbon dioxide into a harmless substance as a carbonate of a high-valent metal by contacting fine particles or aggregates of fine particles of a substance containing a metal or a low-valent metal in the presence of water.

JP 2010-235395 A JP 2007-75773 A

“What is Dispersed Power?”, Japan Electrical Manufacturers’ Association, [Retrieved December 9, 2022], Internet <URL: https://www.jema-net.or.jp/Japanese/res/dispersed/010.html>

The carbon dioxide capture system according to an embodiment of the present disclosure includes an operator terminal used by an equipment operator who operates a thermal power generation facility, a power company device used by a power company that manages the power generated by the thermal power generation facility, and a capture company device used by a carbon dioxide capture company. The thermal power generation facility is equipped with an equipment terminal. The equipment terminal has a power generation information transmission unit that transmits a power generation performance value together with equipment identification information to the power company device. The power company device includes a power generation information receiving unit that receives the power generation performance value and the equipment identification information from each of the multiple thermal power generation facilities, a capture amount calculation unit that calculates a carbon dioxide capture request amount according to the power generation performance value, a request information creation unit that creates request information including the capture request amount, a request information transmission unit that transmits the request information to the capture company device, an absorption value receiving unit that receives the carbon dioxide capture performance value from the capture company device, a point calculation unit that calculates a contribution point to be allocated to each of the operator terminals associated with each of the thermal power generation facilities, and a point transmission unit that transmits the contribution point to the operator terminal.

FIG. 1 is a conceptual diagram illustrating a basic configuration of a carbon dioxide capture system according to an embodiment. FIG. 2 is a diagram illustrating the configuration of the carbon dioxide capture system according to the embodiment. FIG. 3 is a diagram illustrating an example of the functional internal configuration of the facility terminal. FIG. 4 is a diagram illustrating an example of the functional internal configuration of the electric power company device. FIG. 5 is a flow diagram showing the basic operation flow of the electric power company device. FIG. 6 is a perspective view illustrating an example of a capture device. FIG. 7 is a schematic cross-sectional view of the capturing device shown in FIG. 6 taken along line VII-VII.

[Problem to be solved by the invention]
When using power generation facilities that burn fossil fuels as distributed power sources, it is difficult to equip each power generation facility with a carbon dioxide capture device. In particular, when installing a carbon dioxide capture device separately in a small-scale power generation facility, there are significant issues with securing the installation space, the financial burden, and maintenance and operation. In addition, the increase in energy consumption required to operate the carbon dioxide capture device is also an issue.

One of the objectives of this disclosure is to provide a carbon dioxide capture system that utilizes thermal power generation facilities as distributed power sources while efficiently capturing carbon dioxide generated by thermal power generation from the atmosphere.

[Effects of the Invention]
According to the present disclosure, it is possible to provide a carbon dioxide capture system that utilizes thermal power generation equipment as a distributed power source and efficiently captures carbon dioxide generated by thermal power generation from the atmosphere.

[Description of the embodiments of the present disclosure]
Hereinafter, embodiments of the present disclosure will be listed and described.

(1) A carbon dioxide capture system according to an embodiment of the present disclosure includes an operator terminal used by an equipment operator who operates a thermal power generation facility, a power company device used by a power company that manages the power generated by the thermal power generation facility, and a capture company device used by a carbon dioxide capture company. The thermal power generation facility includes an equipment terminal. The equipment terminal has a power generation information transmission unit that transmits a power generation performance value together with equipment identification information to the power company device. The power company device includes a power generation information receiving unit that receives the power generation performance value and the equipment identification information from each of the multiple thermal power generation facilities, a capture amount calculation unit that calculates a carbon dioxide capture request amount according to the power generation performance value, a request information creation unit that creates request information including the capture request amount, a request information transmission unit that transmits the request information to the capture company device, an absorption value receiving unit that receives the carbon dioxide capture performance value from the capture company device, a point calculation unit that calculates a contribution point to be allocated to each of the operator terminals associated with each of the thermal power generation facilities, and a point transmission unit that transmits the contribution point to the operator terminal.

　According to the carbon dioxide capture system described in (1) above, even when thermal power generation facilities are used as distributed power sources, there is no need for each thermal power generation facility to capture carbon dioxide. The amount of carbon dioxide generated by the thermal power generation facilities is captured collectively by the capture operator. This makes it possible to efficiently capture carbon dioxide generated by thermal power generation from the atmosphere. By having the operators of each thermal power generation facility entrust carbon dioxide capture to a third party, carbon dioxide capture by the facility operators is promoted.

(2) In the above (1), the contribution points may be carbon dioxide credits. The carbon dioxide capture system may include a supervisor device used by a carbon dioxide emission supervisor who issues the carbon dioxide credits. The power company device may further include an absorption value transmitting unit that transmits the capture performance value to the supervisor device, and a credit receiving unit that receives the carbon dioxide credits corresponding to the capture performance value from the supervisor device.

According to the carbon dioxide capture system described in (2) above, facility operators can directly acquire carbon dioxide credits, which are obtained as official certification. Acquiring carbon dioxide credits encourages facility operators to take steps to reduce carbon dioxide emissions. It also encourages the reduction of carbon dioxide that is actually present in the atmosphere.

(3) In the above (1) or (2), the carbon dioxide capture system may further include a carbon dioxide capture device. The carbon dioxide capture operator may perform carbon dioxide absorption work using the carbon dioxide capture device. The capture operator device may calculate the capture performance value according to the results of the absorption work.

By using carbon dioxide capture equipment, it is possible to clearly determine the actual reduction achieved.

(4) In the above (3), the carbon dioxide capture device may include a capture device. The capture device may include a carbon dioxide capture material, a solution in which the carbon dioxide capture material is immersed, a supply unit that supplies the target gas to be treated to the solution, and a storage tank in which the solution is stored. The carbon dioxide capture material may be a layered double hydroxide, a basic metal oxide, a basic metal hydroxide, iron, or an iron compound.

As an example of a capture device, the applicant of the present application is developing a carbon dioxide capture device related to the technology disclosed in the above-mentioned Patent Document 2. This device uses a carbon dioxide capture material, which is a layered double hydroxide, a basic metal oxide, a basic metal hydroxide, iron, or an iron compound, to capture carbon dioxide in the gas as a capture product, such as iron carbonate. In other words, by using this capture device, it is possible to capture and recover carbon dioxide that is actually present in gases such as the atmosphere, thereby reducing the amount of carbon dioxide.

By using such a capture device, it is actually possible to efficiently capture carbon dioxide generated by thermal power generation facilities, which serve as distributed power sources, from the atmosphere.

(5) The electric power company device used in the carbon dioxide capture system of the present disclosure is an electric power company device used by an electric power company that manages electricity generated by thermal power generation facilities. The electric power company device may include a power generation information receiving unit that receives actual power generation values and facility identification information from each of the multiple thermal power generation facilities, a capture amount calculation unit that calculates a requested amount of carbon dioxide capture according to the actual power generation values, a request information creation unit that creates request information including the requested amount of capture, a point calculation unit that calculates contribution points to be allocated to an operator terminal associated with each of the multiple thermal power generation facilities, and a point transmission unit that transmits the contribution points to the operator terminal.

The electric power company device of (5) above is used in the configuration of the carbon dioxide capture system of (1) above. According to the carbon dioxide capture system of (1) above, it is possible to efficiently capture carbon dioxide generated by thermal power generation from the atmosphere while using thermal power generation equipment as a distributed power source. In addition, the capture of carbon dioxide by equipment operators of thermal power generation equipment is promoted. The electric power company device may be equipped with a performance memory unit that stores the received power generation performance value in association with the equipment identification information.

(6) The carbon dioxide capture method disclosed herein includes an equipment operator who operates a thermal power generation facility, an electric power company that manages the power generated by the thermal power generation facility, and a carbon dioxide capture company that captures carbon dioxide in the atmosphere, and the equipment operator acquires contribution points as a result of capturing carbon dioxide according to the amount of power generated by the thermal power generation facility. The electric power company uses an electric power company device. The electric power company device is configured to execute the steps of receiving a power generation performance value and equipment identification information from each of the multiple thermal power generation facilities, calculating a carbon dioxide capture request amount according to the power generation performance value, transmitting request information including the capture request amount to the carbon dioxide capture company, receiving capture information including the carbon dioxide capture performance value from the carbon dioxide capture company, calculating the contribution points to be allocated to each of the multiple thermal power generation facilities according to the capture performance value, and transmitting the contribution points to the equipment operator.

　According to the carbon dioxide capture method (6) above, even when thermal power generation facilities are used as distributed power sources, there is no need for each thermal power generation facility to capture carbon dioxide. The amount of carbon dioxide generated by the thermal power generation facilities is captured collectively by the capture operator. This makes it possible to efficiently capture carbon dioxide generated by thermal power generation from the atmosphere. By having the equipment operators of each thermal power generation facility entrust carbon dioxide capture to a third party, carbon dioxide capture by the equipment operators is promoted.

(7) In the above (6), the contribution points may be carbon dioxide credits. The electric power company device may be further configured to transmit the recovery performance value to a carbon dioxide emission supervisor and receive the carbon dioxide credits according to the recovery performance value from the carbon dioxide emission supervisor.

According to the carbon dioxide capture method (7) above, the facility operator can directly acquire carbon dioxide credits, which are obtained as official certification. Acquiring carbon dioxide credits encourages the facility operator to take measures to reduce carbon dioxide emissions.

[Details of the embodiment of the present disclosure]
An embodiment of the present disclosure will be described with reference to the drawings. The embodiment described below shows one specific example of the present disclosure. The numerical values, shapes, materials, components, arrangement and connection form of the components, procedures, etc. described below are examples of the embodiment. In addition, each figure is a schematic diagram and is not necessarily drawn precisely. The same components in the figures are given the same reference numerals. The description of the functions of the same components will be omitted as appropriate. In the following description, the term "capture" is used to broadly include the absorption, capture, fixation, etc. of carbon dioxide in other media. The fixation of carbon dioxide contained in a gas as a solid is mainly called absorption or capture, and the work including absorption or the entire process is called capture, but this is not a strict distinction.

<Embodiment>
(Basic configuration of carbon dioxide capture system)
The basic configuration of the carbon dioxide capture system 1 of the present disclosure will be described with reference to FIG. 1. FIG. 1 shows a plurality of thermal power generation facilities 10 and an equipment operator 60 that operates each of the thermal power generation facilities 10. The equipment operator 60 is an individual, a corporation, or the like that owns or operates the thermal power generation facilities 10 and the equipment terminal 11 shown in FIG. 2. Ownership is not limited to a legal relationship, and may be a concept that includes a person who substantially receives benefits related to the thermal power generation facilities 10 and the equipment terminal 11. The number of thermal power generation facilities 10 is not limited as long as it is one or more. In addition, the number of thermal power generation facilities 10 and the equipment operators 60 do not need to match, and the number of equipment operators 60 is one or more. In other words, one equipment operator 60 may operate a plurality of thermal power generation facilities 10. The equipment operator 60 may be an individual, a business operator such as a corporation, or various organizations such as a local government or a public interest organization.

Thermal power generation facility 10 may be any type of power generation facility that generates carbon dioxide by burning fuel. The thermal power generation facility 10 may be a large-scale power generation facility such as a coal-fired power generation facility, an oil-fired power generation facility, or a natural gas-fired power generation facility. The thermal power generation facility 10 may also be a small-scale power generation facility in a commercial building or a private residence, or a small generator that can be relocated.

The multiple thermal power generation facilities 10 are connected to a power transmission and distribution network 70 via distribution and transmission lines. Some or all of the electricity generated by the thermal power generation facilities 10 is supplied to consumers through the power transmission and distribution network 70. The power supplier 20 is a business operator that supplies electricity by coordinating the multiple thermal power generation facilities 10 and controlling the power transmission and distribution network 70. In a well-known form, the power supplier 20 purchases electricity from multiple power generation facilities including the thermal power generation facilities 10, and supplies electricity to consumers while adjusting the supply and demand. The power generation facilities handled by the power supplier 20 may include large-scale power generation facilities such as thermal power generation, hydroelectric power generation, and nuclear power generation, and may also include power generation using natural energy such as wind power generation and solar power generation.

The carbon dioxide capture business operator 30 is a business operator that uses the carbon dioxide capture device 32. The carbon dioxide capture business operator 30 operates the carbon dioxide capture device 32 upon request from another party and reports the amount of carbon dioxide captured to the requester. The carbon dioxide capture device 32 is a capture device that absorbs and captures carbon dioxide from gases such as the atmosphere and various exhaust gases. Specific examples of the carbon dioxide capture device 32 will be described later.

The carbon dioxide emission supervisor 40 is, for example, a national or local government, a public institution, or a business entity commissioned by them. The carbon dioxide emission supervisor 40 receives declarations of carbon dioxide reductions and emission reductions and certifies them. Certification refers to proving the contribution of reductions, etc., and providing compensation according to reductions, etc.

The above-mentioned thermal power generation facility 10, facility operator 60, power company 20, carbon dioxide capture business operator 30, and carbon dioxide emission supervisor 40 are configured so that the devices they use can communicate via a communication network 50. In the following explanation, "use" broadly means using the relevant facility or device directly or indirectly for one's own purposes. "Use" may be used in the same sense as "operate." "Use" is independent of whether or not one owns the facility or device in question.

<Embodiment 1>
One embodiment of the present disclosure is a carbon dioxide capture system 1 that includes an equipment operator 60 that operates a thermal power generation facility 10, an electric power company 20 that manages the power generated by the thermal power generation facility 10, and a carbon dioxide capture business operator 30 that captures carbon dioxide in the atmosphere, and realizes a carbon dioxide capture method in which the equipment operator 60 acquires contribution points as a result of absorbing carbon dioxide according to the amount of power generated by the thermal power generation facility 10. In the following explanation of the system, one thermal power generation facility 10 and equipment operator 60 will be explained as a representative, but the number of thermal power generation facilities 10 and equipment operators 60 in the embodiment is not limited.

FIG. 2 is a block diagram showing the relationship between the devices included in the carbon dioxide capture system 1. The operation of the carbon dioxide capture system 1 according to the first embodiment of the present disclosure will be described with reference to FIGS. 1 and 2.

The thermal power generation facility 10 is equipped with an equipment terminal 11. An equipment operator 60 uses the operator terminal 61. The equipment terminal 11 is typically a general-purpose computer including a personal computer, a workstation, a server, etc. The operator terminal 61 may be, for example, a smartphone, a tablet terminal, a game console, or a personal computer, or it may be a general-purpose computer.

The electric power company 20 uses an electric power company device 21. The electric power company device 21 is a device that performs various data processing related to the electric power company 20, and may be a general-purpose computer including a personal computer, a workstation, a server, etc. The electric power company device 21 can communicate with the equipment terminal 11 and the operator terminal 61 through the communication network 50. Through communication between the electric power company device 21 and the equipment terminal 11, the electric power company device 21 can grasp the power generation status of the thermal power generation equipment 10 from the equipment terminal 11.

The carbon dioxide capture business operator 30 uses a capture business operator device 31. The capture business operator device 31 is a device that processes requests from outside and processes data related to carbon dioxide absorption by the carbon dioxide capture equipment 32. The capture business operator device 31 may be a general-purpose computer, typically including a personal computer, a workstation, or a server. The capture business operator device 31 is capable of communicating with other devices via a communication network 50.

The carbon dioxide emission supervisor 40 uses a supervisor device 41. The supervisor device 41 is a device that processes data related to the above-mentioned authentication, and is typically a general-purpose computer including a personal computer, a workstation, a server, etc. The supervisor device 41 is capable of communicating with other devices through a communication network 50. The communication network 50 is not limited to a specific communication line and may be a dedicated communication line, but is typically the Internet including Ethernet (registered trademark) communication.

The electric power company device 21 receives the power generation performance value 81 and equipment identification information 82 of the thermal power generation facility 10 from the equipment terminal 11 by communicating with the equipment terminal 11. The power generation performance value 81 is stored in the electric power company device 21 in association with the equipment identification information 82 of the thermal power generation facility 10. The electric power company device 21 creates request information 83. The request information 83 includes the amount of carbon dioxide absorption required for the carbon dioxide capture work corresponding to the power generation performance value 81. The electric power company device 21 transmits the created request information 83 to the capture business operator device 31. The electric power company device 21 receives the capture performance value 84 associated with the completion of the carbon dioxide capture work from the capture business operator device 31. The electric power company device 21 transmits the capture performance value 84 to the supervisor device 41. The supervisor device 41 issues carbon dioxide credits 85 corresponding to the reported capture performance value 84. The electric power company device 21 receives the carbon dioxide credits 85 from the supervisor device 41. The electric power company device 21 calculates the contribution points 86 to be awarded to the equipment operator 60 based on the received carbon dioxide credits 85 and the actual power generation value 81. The electric power company device 21 transmits the calculated contribution points 86 to the operator terminal 61. There are no limitations on the method of calculating the contribution points 86. The contribution points 86 may be calculated based only on the actual power generation value 81, or may be calculated including other conditions. The contribution points 86 may be the carbon dioxide credits 85 themselves.

The above explanation has been given for a thermal power generation facility 10 and a facility operator 60, but if there are multiple thermal power generation facilities 10 and facility operators 60, the same applies to each thermal power generation facility 10 and facility operator 60. If there are multiple thermal power generation facilities 10, the request information 83 sent from the power company device 21 to the recovery operator device 31 may be a single request information 83 that consolidates requests related to multiple thermal power generation facilities 10. In addition, the recovery performance value 84 sent from the power company device 21 to the supervisor device 41, and the carbon dioxide credits 85 received from the supervisor device 41 may also be total values related to multiple thermal power generation facilities 10.

In this disclosure, tangible or intangible items that are granted as certification and have economic value and are tradable are collectively referred to as carbon dioxide credits85. As an example, at the time of this application, the J-Credit Scheme is in operation in Japan (Reference URL: https://japancredit.go.jp/). This scheme is explained as follows: "The J-Credit Scheme is a scheme in which the government certifies the amount of _CO2 and other emissions reduced by the introduction of energy-saving equipment and the use of renewable energy, and the amount of _CO2 and other emissions absorbed by appropriate forest management as "credits". This scheme is a system that is an evolutionary integration of the domestic credit scheme and the offset credit (J-VER) scheme, and is operated by the government. The credits created by this scheme can be used for various purposes, such as achieving the goals of the Keidanren Carbon Neutral Action Plan and carbon offsetting. " The owner of the credit can obtain economic benefits in various ways, such as selling the credits.

(Equipment terminal)
As shown in FIG. 3, the equipment terminal 11 includes a calculation unit 110, a communication unit 120, a storage unit 130, and a bus 140 as a path of information therebetween as basic components. Although not shown, the equipment terminal 11 may additionally include an input/output unit for displaying and inputting information. The equipment terminal 11 may be configured by a computer including, for example, a central processing unit (CPU), a random access memory (RAM), a read only memory (ROM), a communication interface, an input/output interface, and the like. The equipment terminal 11 is connected to equipment such as a generator (not shown) in the thermal power generation equipment 10. The calculation unit 110 functions as a power generation information acquisition unit 112. The power generation information acquisition unit 112 acquires operation information including a power generation performance value 81 from a sensor or the like provided in an equipment such as a generator. The acquired power generation performance value 81 is stored in the storage unit 130 together with, for example, the acquisition time.

The memory unit 130 is composed of volatile or non-volatile memory elements. Programs and data are stored in the memory unit 130. For example, a program stored in a ROM is expanded in a RAM and executed on a CPU to realize the functions of the calculation unit 110. The communication unit 120 is configured to transmit and receive Ethernet frames, which are data generated by the calculation unit 110, to the outside via a communication network 50 (see FIG. 1). The memory unit 130 stores equipment identification information 82 unique to the thermal power generation facility 10. The equipment identification information 82 is unique information such as the location, name, and pre-assigned equipment identification code of the thermal power generation facility 10. The equipment identification information 82 may include information such as the name, pre-assigned identification code, and contact information of the equipment operator 60 of the thermal power generation facility 10.

The calculation unit 110 functions as a power generation information transmission unit 111. The power generation information transmission unit 111 transmits the power generation performance value 81 and the facility identification information 82 stored in the memory unit 130 to the power company device 21. The transmission is performed by sending a predetermined data frame to a communication line by a predetermined communication method using the function of the communication unit 120. The communication method and data format, etc. are not limited in this embodiment, and known methods can be used. The timing at which the power generation performance value 81 is transmitted is not particularly limited, and examples include a regular time such as once a day or once an hour, or when a request is received from the power company device 21.

(Operator terminal)
The operator terminal 61 provided by the equipment operator 60 receives the contribution points 86 transmitted from the electric power company device 21. A basic configuration provided as an original function of the operator terminal 61 is not shown. For example, if the operator terminal 61 is a smartphone or a personal computer, the basic configuration includes an input unit, a communication unit, a calculation unit, a display unit, etc. The manner in which the operator terminal 61 receives the contribution points 86 is not particularly limited.

The contribution points 86 are not particularly limited as long as they enable the equipment operator 60 to enjoy economic or social benefits directly or indirectly. The contribution points 86 may be carbon dioxide credits themselves. The received contribution points 86 may be in a form that the equipment operator 60 can use by using known methods such as a dedicated app or email. The contribution points 86 may be, for example, points known from various point systems, miles from a mileage system, electronic money, virtual currency, or discount coupons.

(Electric power company equipment)
The electric power company device 21 is a device used by the electric power company 20. As shown in Fig. 2, the electric power company device 21 is a device for performing a series of operations in which the electric power company 20 grasps a power generation performance value 81 of the thermal power generation facility 10, requests a carbon dioxide capture business operator 30 to perform a carbon dioxide capture operation corresponding to the power generation performance value 81, reports a capture performance value 84 to a carbon dioxide emission supervisor 40, receives carbon dioxide credits 85, and grants contribution points 86 corresponding to the carbon dioxide credits 85 to the facility operator 60.

The basic operation flow of the electric power company device 21 is shown in the flow diagram of Figure 5. The electric power company device 21 is configured to operate in the following order: a step of receiving the power generation performance value 81 and the equipment identification information 82 from each of the multiple thermal power generation facilities 10 (S101); a step of calculating the requested amount of carbon dioxide recovery according to the power generation performance value 81 (S102); a step of transmitting the request information 83 including the requested amount of recovery to the carbon dioxide recovery business operator 30 (S103); a step of receiving the recovery information including the carbon dioxide recovery performance value 84 from the carbon dioxide recovery business operator 30 (S104); a step of calculating the contribution points 86 to be allocated to each of the multiple thermal power generation facilities 10 according to the recovery performance value 84 (S105); and a step of transmitting the contribution points 86 to the equipment operator 60 (S106). In addition, when the contribution points 86 are carbon dioxide credits 85, the electric power company device 21 may be configured to perform the following steps S105a to S105c instead of step S105. The electric power company device 21 may be configured to perform the steps of transmitting the recovery performance value 84 to the carbon dioxide emission supervisor 40 (S105a), receiving carbon dioxide credits 85 corresponding to the recovery performance value 84 from the carbon dioxide emission supervisor 40 (S105b), and calculating the carbon dioxide credits 85 to be allocated to each of the multiple thermal power generation facilities 10 according to the recovery performance value 84 as contribution points 86 (S105c).

As shown in FIG. 4, the electric power company device 21 is a device that includes at least a calculation unit 210, a communication unit 220, and a storage unit 230. The electric power company device 21 may include a general display unit, an input unit, etc., but these are not shown in FIG. 4. The electric power company device 21 can be configured, for example, by a computer that includes a CPU, RAM, ROM, a communication interface, an input/output interface, etc. The calculation unit 210, the communication unit 220, the storage unit 230, etc. are connected to each other via a bus 240. The storage unit 230 is configured to include a volatile or non-volatile memory element, etc. Programs and data are stored in the storage unit 230. For example, a program stored in the ROM is expanded in the RAM and executed on the CPU to realize the function of the calculation unit 210. The communication unit 220 is configured to transmit and receive Ethernet frames, which are data generated by the calculation unit 210, etc., to the outside via the communication network 50 (see FIG. 1).

The following describes each of the functional units of the calculation unit 210 with reference to Figures 2 and 4. Each of these functional units is stored in the storage unit 230 and is executed by a program executed by the processor.

The calculation unit 210 includes a power generation information receiving unit 211 that receives information including the power generation performance value 81 and equipment identification information 82 from the equipment terminal 11. The contents of the power generation performance value 81 and the equipment identification information 82 are as described above. The calculation unit 210 includes a performance memory unit 212 that associates and stores the power generation performance value 81 and the equipment identification information 82. The power generation amount for each thermal power generation facility 10 is written to the memory unit 230 by the function of the performance memory unit 212.

The calculation unit 210 includes a recovery amount calculation unit 213 that calculates the amount of carbon dioxide recovered corresponding to the stored power generation actual value 81. The relationship between the power generation actual value 81 and the recovery amount differs for each power generation facility. The power company device 21 stores the carbon dioxide emitted for generating a unit amount of power in advance as a table in the storage unit 230 as the capacity of the generator used by the thermal power generation facility 10. Alternatively, the power company device 21 can receive this information from the facility terminal 11 by including it in the facility identification information 82. The power company device 21 can calculate the amount of carbon dioxide emissions estimated to have been emitted in conjunction with the power generation from the power generation actual value 81 received from the thermal power generation facility 10. The recovery amount calculation unit 213 can calculate the amount of carbon dioxide emissions and use the calculated carbon dioxide emissions as the recovery amount.

The calculation unit 210 includes a request information creation unit 214a that creates the request information 83. The request information 83 is data that includes the amount of carbon dioxide absorption requested to the carbon dioxide recovery business operator 30, and includes general information such as requester information and delivery date. The amount of carbon dioxide absorption included in the request information 83 may be the above-mentioned recovery amount calculated from the power generation performance value 81, or may be a value determined based on the recovery amount. In addition to the recovery amount calculated from the actual power generation performance value 81, a predetermined carbon dioxide emission due to peripheral work such as equipment operation or energy consumption associated with business activities may be taken into account. In this way, various methods for calculating the amount of carbon dioxide absorption from the power generation performance value 81 can be determined and are not limited. These calculations may be performed by calculation using a predetermined formula, or may be performed by referring to a table of numerical relationships that is predetermined and stored in the storage unit. The calculation method is realized by a program or the like as a function of the request information creation unit 214a.

The timing of creating the request information 83 can be determined arbitrarily depending on the timing of the request for work from the power company 20 to the carbon dioxide capture business operator 30. In addition, the request information 83 may include the amount of carbon dioxide absorption corresponding to the power generation performance value 81 for each thermal power generation facility 10, or may include the amount of carbon dioxide absorption corresponding to the total value obtained by aggregating the power generation performance values 81 from multiple thermal power generation facilities 10.

The request information sending unit 214b performs a process of sending the request information 83 to the recovery company device 31. The absorption value receiving unit 215 performs a process of receiving the recovery performance value 84 from the recovery company device 31. In the carbon dioxide recovery company 30, the carbon dioxide absorption work is performed by operating the carbon dioxide recovery device 32 in accordance with the request information 83. The amount of carbon dioxide actually absorbed is stored in the recovery company device 31 as the recovery performance value 84, and is transmitted from the recovery company device 31 to the power company device 21.

The transmission of information from the electric power company device 21 to the recovery company device 31, and the reception of information from the recovery company device 31 by the electric power company device 21 are performed by the function of the communication unit 220 of the electric power company device 21. These transmissions and receptions are not limited to communication via the Internet by the communication unit 220. For example, instead of communication via the Internet, a method may be used in which the electric power company device 21 outputs transmission information created by the request information transmission unit 214b, and transmits the output transmission information to the recovery company device 31 via other means. Instead of communication via the Internet, a method may be used in which the absorption value receiving unit 215 receives information output from the recovery company device 31 via other input means.

The calculation unit 210 includes an absorption value transmission unit 216 that transmits the recovery performance value 84 received from the recovery business device 31 to the supervisor device 41. The calculation unit 210 also includes a credit reception unit 217 that receives a carbon dioxide credit 85 corresponding to the recovery performance value 84 from the supervisor device 41.

The timing for transmitting the collection record value 84 can be determined arbitrarily. Furthermore, the collection record value 84 transmitted may be a value corresponding to each piece of request information 83, or may be a total value obtained by aggregating values corresponding to multiple pieces of request information 83.

The carbon dioxide emission supervisor 40 issues carbon dioxide credits 85 according to the recovery performance value 84. The issued carbon dioxide credits 85 are stored in the supervisor device 41 and transmitted from the supervisor device 41 to the electric power company device 21.

The transmission of information from the power company device 21 to the supervisor device 41, and the reception of information from the supervisor device 41 in the power company device 21 are performed by the functions of the communication unit 220 of the power company device 21. These transmissions and receptions are not limited to communication via the Internet by the communication unit 220. For example, instead of communication via the Internet, a method may be used in which the power company device 21 outputs transmission information created by the absorption value transmission unit 216 and transmits the output transmission information to the supervisor device 41 via other means. Instead of communication via the Internet, a method may be used in which the credit receiving unit 217 receives information output from the supervisor device 41 via other input means.

The calculation unit 210 includes a point calculation unit 218 that calculates contribution points 86 based on the carbon dioxide credits 85 received from the supervisor device 41 and the actual power generation value 81 of the thermal power generation facility 10. The calculated contribution points 86 are transmitted to the operator terminal 61 by a point transmission unit 219. The contribution points 86 transmitted from the power company device 21 are received by a point receiving unit (not shown) provided in the operator terminal 61.

By following the above process, the equipment operator 60 can receive contribution points 86 according to the power generation performance value 81 of the thermal power generation equipment 10 that he/she owns or operates. In this embodiment, this corresponds to the amount of carbon dioxide emitted. As a result, the emission of carbon dioxide into the atmosphere is offset, and the equipment operator 60 can enjoy economic benefits from the contribution points 86.

The contribution points 86 may be the carbon dioxide credits 85 that the electric power company device 21 receives from the supervisor device 41. In other words, the contribution points 86 may be the amount of carbon dioxide credits 85 distributed to the equipment operators 60 according to the ratio of the power generation performance values 81 of each thermal power generation facility 10 stored in the memory unit 230 by the electric power company device 21. The carbon dioxide credits 85 distributed to each equipment operator 60 may be a value obtained by subtracting a predetermined amount according to the involvement of the electric power company 20 from the carbon dioxide credits 85 received from the supervisor device 41.

The processing of each functional unit in each of the above-mentioned embodiments is realized by a processing circuit (Circuitry) including one or more processors. The processing circuit may be composed of an integrated circuit or the like that combines one or more memories, various analog circuits, and various digital circuits in addition to the one or more processors. The one or more memories store programs (instructions) that cause the one or more processors to execute each of the above processes. The one or more processors may execute each of the above processes according to the programs read from the one or more memories, or may execute each of the above processes according to logic circuits designed in advance to execute each of the above processes. The processors may be various processors suitable for computer control, such as a CPU (Central Processing Unit), a GPU (Graphics Processing Unit), a DSP (Digital Signal Processor), an FPGA (Field Programmable Gate Array), an ASIC (Application Specific Integrated Circuit), etc. The physically separated processors may cooperate with each other to execute each of the above processes. For example, the processors mounted on each of a number of physically separated computers may cooperate with each other via a network such as a LAN (Local Area Network), a WAN (Wide Area Network), or the Internet to execute the above processes. The above program may be installed into the memory from an external server device or the like via the above network, or may be distributed in a state stored on a recording medium such as a CD-ROM (Compact Disc Read Only Memory), a DVD-ROM (Digital Versatile Disk Read Only Memory), or a semiconductor memory, and installed into the memory from the recording medium.

<Carbon dioxide capture device>
The carbon dioxide capture device 32 used by the carbon dioxide capture operator 30 will be described. The carbon dioxide capture device 32 is a device that absorbs, captures, and captures carbon dioxide from gases such as the atmosphere and various exhaust gases. The carbon dioxide capture device 32 described in this disclosure is a general term for equipment including a capture device that absorbs carbon dioxide, and its associated equipment, piping, control devices, power sources, and the like.

<Capturing device>
As an example of a capture device, a device that uses a carbon dioxide capture material in a solution to fix and capture carbon dioxide as a capture product will be described. The capture devices applicable to the carbon dioxide capture system 1 of the present disclosure are not limited to the devices described below, and various devices capable of separating and capturing carbon dioxide in a gas can be applied. The capture device specifically described below is a device that can be preferably applied to the carbon dioxide capture system 1 of the present disclosure due to its characteristics of being able to capture carbon dioxide with a simple configuration and being able to fix and capture carbon dioxide in a gas as a capture product.

The configuration of the capture device 500 will be described using Figures 6 and 7. Figure 6 is a schematic perspective view illustrating the capture device 500 according to an embodiment of the present disclosure. Figure 7 is a schematic cross-sectional view taken along line VII-VII shown in Figure 6. A gas to be treated 512, which is a gas containing carbon dioxide, is supplied to the capture device 500. Carbon dioxide in the gas to be treated 512 is captured in the solution 520 by the action of the carbon dioxide capture material 510.

The size of the capture device 500 is set appropriately depending on the location and purpose of use. The capture device 500 is described in detail below.

The capture device 500 includes a storage tank 501, a carbon dioxide capture material 510, a solution 520 that covers the carbon dioxide capture material 510, and a supply unit 530 that supplies the gas to be treated 512 containing carbon dioxide to the solution 520. Carbon dioxide becomes carbonate ions in the solution 520. The capture device 500 may include a dissolution promotion mechanism 540 that promotes the dissolution of carbon dioxide into the solution 520, a dispersion mechanism 550 that disperses multiple carbon dioxide capture materials 510 in the solution 520, and a porous support 571 on which the carbon dioxide capture materials 510 are arranged. The capture device 500 may also include a solution adjustment mechanism 560 that supplies at least one of an acidic substance, a reducing agent, a metal ion sequestering agent, and a builder to the solution 520.

(Carbon dioxide capture material)
The carbon dioxide capturing material 510 is in a particulate or powder form. In this embodiment, the carbon dioxide capturing material 510 is a particle mainly composed of iron or an iron compound. The carbon dioxide capturing material 510 mainly composed of iron is, for example, iron or an iron alloy. The iron alloy may be a metal containing, in addition to the iron element, for example, manganese element, chromium element, molybdenum element, aluminum element, copper element, zinc element, nickel element, or the like. Examples of the iron compound include iron (II) hydroxide and iron (II) hexacyanoferrate (II). The carbon dioxide capturing material 510 may be a layered double hydroxide, a basic metal oxide, or a basic metal hydroxide other than iron.

The carbon dioxide capture material 510 is mainly composed of iron or an iron compound, and can easily capture carbonate ions and the like in the solution 520. Iron ions are generated in the solution 520 from the iron, etc., of the carbon dioxide capture material 510. The carbonate ions and iron ions present in the solution 520 precipitate as iron carbonate, which is collected as a captured product.

The average particle size of the multiple carbon dioxide capture materials 510 may be, for example, 5 nm or more and 500 μm or less, 10 nm or more and 200 μm or less, or 15 nm or more and 100 μm or less.

(Support)
A plurality of carbon dioxide capturing materials 510 are arranged on the support 571. By providing the capture device 500 with the support 571, the carbon dioxide capturing materials 510 can be stably held. In addition, the captured product, which is iron carbonate attached to the carbon dioxide capturing materials 510, can be easily collected and washed.

The support 571 in this embodiment is a porous sheet. A plurality of carbon dioxide capture materials 510 are arranged on one porous sheet. Because the support 571 is a porous sheet, carbonate ions and the like can be easily and reliably brought into contact with the carbon dioxide capture materials 510. Furthermore, a plurality of carbon dioxide capture materials 510 are arranged at intervals on one porous sheet. By arranging a plurality of carbon dioxide capture materials 510 at intervals from each other, aggregation of the carbon dioxide capture materials 510 is suppressed, and the effect of the carbon dioxide capture materials 510 in capturing carbonate ions and the like is likely to be improved.

The support 571 is, for example, a cloth, a nonwoven sheet, a woven sheet, a sponge sheet, a cellulose fiber sheet such as washi paper, a carbon fiber sheet, a ceramic fiber sheet such as made of alumina, or a metal fiber sheet such as made of copper or stainless steel. The carbon dioxide capture material 510 may be disposed on the surface of the support 571, or may be disposed inside the support 571. The support 571 is not limited to the above-mentioned porous sheet, and may be, for example, porous particles or porous threads.

When the capture device 500 has multiple supports 571, the multiple supports 571 may be arranged at intervals from each other. This configuration makes it possible to easily and stably hold the multiple carbon dioxide capture materials 510 in a state where they are easily in contact with carbonate ions, etc.

When the multiple supports 571 are arranged at intervals, the supports 571 may be arranged with spacers 572 between them. In Figs. 6 and 7, the multiple supports 571 are arranged alternately with the spacers 572 in the thickness direction. The spacers 572 are, for example, plate-shaped. The spacers 572 are arranged alternately with the supports 571 with their plate surfaces in contact with the supports 571. The spacers 572 are porous. The spacers 572 being porous form a passage through which carbonate ions and the like reach the carbon dioxide capture material 510. The spacers 572 are, for example, mesh and sponge. Note that the spacers 572 are not limited to being plate-shaped, and may be rod-shaped members that contact only a portion of the supports 571. By providing the spacers 572, the multiple supports 571 can be easily arranged at high density while maintaining a distance from each other.

(Supply Department)
The supply unit 530 supplies the gas to be treated 512, which is a gas containing carbon dioxide, to the solution 520. The supply unit 530 includes, for example, a supply pipe capable of supplying the gas containing carbon dioxide into the storage tank 501 from the lower part of the storage tank 501.

(solution)
The solution 520 constantly covers the plurality of carbon dioxide capturing materials 510. In the capturing device 500, the plurality of carbon dioxide capturing materials 510 are immersed in the solution 520.

The pH of the solution 520 and the potential of the carbon dioxide capture material 510 may be controlled to a range in which divalent iron ions or divalent iron hydroxide are stable in the potential-pH diagram. In other words, the pH of the solution 520 and the potential of the carbon dioxide capture material 510 may be controlled so as to increase the content of divalent iron ions or divalent iron hydroxide in the solution 520.

The solution 520 includes water as a solvent. The solution 520 may include a dissolution promoter that promotes dissolution of carbon dioxide into the solution 520, or may include a pH buffer. The solution 520 may include a salt that exhibits acidity in the solution 520 to reduce the pH of the solution 520. The solution 520 may include a carbonation promoter 521 for promoting carbonation of iron ions eluted from the carbon dioxide capture material 510. The dissolution promoter is, for example, carbonic anhydrase. Carbonic anhydrase promotes the production of bicarbonate ions (HCO ₃ ⁻ ). The pH buffer (buffer) makes it easier to maintain the pH of the solution 520 at a desired value. The pH buffer is, for example, sodium tartrate, sodium acetate, sodium borate, sodium citrate, ammonium chloride, or sodium phosphate. Salts that exhibit acidity in the solution 520, i.e., salts that exhibit acidity when dissolved in the solution 520, are, for example, sodium hydrogen sulfate, ammonium hydrogen sulfate, sodium dihydrogen phosphate, iron (II) sulfate, or iron (II) chloride. By including the salt in the solution 520 in this manner, the pH of the solution 520 can be easily reduced. In this embodiment, the carbonation promoter 521 is in a particulate form. The carbonation promoter 521 is mainly composed of iron carbonate or iron bicarbonate. The carbonation promoter 521 can serve as seed crystals for carbonating iron ions.

A gas containing carbon dioxide is supplied to the solution 520 from a supply unit 530. As a result, carbonate ions (CO ₃ ²⁻ ) or hydrogen carbonate ions (HCO ₃ ⁻ ) are generated in the solution 520.

(Dissolution Promotion Mechanism)
As described above, the dissolution promotion mechanism 540 promotes the dissolution of carbon dioxide into the solution 520. By including the dissolution promotion mechanism 540, the capture device 500 is likely to increase the amount of carbon dioxide in the solution 520. This further improves the efficiency of capturing carbon dioxide.

The dissolution promotion mechanism 540 is, for example, a bubble generator capable of generating fine bubbles such as nanobubbles and microbubbles in the solution 520, an ultrasonic generator capable of generating cavitation bubbles in the solution 520, or a temperature and pressure control device capable of lowering the water temperature of the solution 520 and increasing the partial pressure of carbon dioxide.

6 and 7, the capture device 500 is equipped with the above-mentioned bubble generator as the dissolution promotion mechanism 540. The above-mentioned bubble generator is disposed in the flow path of the gas containing carbon dioxide that runs from the supply unit 530 to the storage tank 501. The above-mentioned bubble generator turns the gas containing carbon dioxide into fine bubbles and supplies them to the solution 520.

(Dispersion mechanism)
The dispersion mechanism 550 disperses the plurality of carbon dioxide capturing materials 510 in the solution 520. The dispersion mechanism 550 maintains the average particle size of the plurality of carbon dioxide capturing materials 510. The dispersion mechanism 550 functions particularly effectively when the plurality of carbon dioxide capturing materials 510 are prone to aggregation. As the dispersion mechanism 550, a device that generates a water flow in the solution 520 can be used, and an ultrasonic generator, a stirrer, or the like can be used. FIG. 6 shows an ultrasonic generator as the dispersion mechanism 550. In addition, a device that attracts, separates, and fixes (fixes at a specific position) the carbon dioxide capturing materials 510 by magnetic force can also be used as the dispersion mechanism 550. Such a device is, for example, a magnetic separation device.

(Solution Adjustment Mechanism)
For example, when the pH of the solution 520 increases, the solution adjusting mechanism 560 supplies an acidic substance to the solution 520. The acidic substance is, for example, the above-mentioned salt or a solution in which the salt is dissolved.

(Storage tank)
A solution 520 is stored in the storage tank 501. The capture device 500 also includes a degassing promotion mechanism 503 that discharges gas released from the solution 520. In this embodiment, the storage tank 501 has a porous membrane 502 for disposing the above-mentioned carbonation promoter 521 at a distance from the carbon dioxide capture material 510 and the support 571.

(Porous membrane)
7 , the porous membrane 502 separates, for example, the carbonation promoter 521 from the carbon dioxide capturing material 510 and the support 571 vertically within the storage tank 501. The carbonation promoter 521 may be disposed below the porous membrane 502, and the carbon dioxide capturing material 510 and the support 571 may be disposed above the porous membrane 502. By separating the carbonation promoter 521 from the carbon dioxide capturing material 510 and the support 571 in this manner by the porous membrane 502, it is possible to easily recover iron carbonate and the like using the carbonation promoter 521 as seed crystals, as described above.

The porous membrane 502 may be configured to suppress the passage of iron carbonate and the like, while allowing carbonate ions and the like to pass through. By suppressing the passage of iron carbonate and the like by the porous membrane 502, it is possible to suppress the iron carbonate and the like using the carbonation promoter 521 as seed crystals from coating the carbon dioxide capture material 510, and therefore it is possible to further suppress a decrease in the activity of the carbon dioxide capture material 510. In addition, by allowing carbonate ions and the like to pass through the porous membrane 502, it is easy to promote the supply of carbonate ions and the like to the carbon dioxide capture material 510.

(Degassing Promotion Mechanism)
The degassing promotion mechanism 503 is disposed at the top of the storage tank 501. The degassing promotion mechanism 503 discharges gas that rises in the solution 520 and is released from the liquid surface of the solution 520 to the outside of the capture device 500. Furthermore, the degassing promotion mechanism 503 discharges the gas to the outside of the capture device 500 so as to reduce the pressure of the gas in contact with the solution 520. By reducing the pressure of the gas in contact with the solution 520 in this manner, the degassing promotion mechanism 503 reduces the dissolved oxygen content of the solution 520. This reduces the oxidation caused by the dissolved oxygen in the solution 520, making it easier to maintain a state in which the ratio of divalent iron ions in the solution 520 is increased.

The embodiments disclosed herein are illustrative in all respects and should not be considered restrictive. The present invention is not limited to these examples, but is defined by the scope of the claims, and is intended to include all modifications that are equivalent to the scope of the claims and within the scope of the claims.

1 Carbon dioxide capture system 10 Thermal power generation equipment, 11 Equipment terminal, 110 Calculation unit, 111 Power generation information transmission unit, 112 Power generation information acquisition unit, 120 Communication unit, 130 Memory unit, 140 Bus 20 Electric power company, 21 Electric power company device, 210 Calculation unit, 211 Power generation information reception unit, 212 Performance memory unit, 213 Capture amount calculation unit, 214a Request information creation unit, 214b Request information transmission unit, 215 Absorption value reception unit, 216 Absorption value transmission unit, 217 Credit reception unit, 218 Point calculation unit, 219 Point transmission unit, 220 Communication unit, 230 Memory unit, 240 Bus 30 Carbon dioxide capture business operator, 31 Capture business operator device, 32 Carbon dioxide capture device 40 Carbon dioxide emission supervisor, 41 Supervisor device 50 Communication network 60 Equipment operator, 61 Operator terminal 70 Power transmission and distribution network 81: power generation performance value, 82: equipment identification information, 83: request information, 84: recovery performance value, 85: carbon dioxide credit, 86: contribution points 500: capture device, 501: storage tank, 502: porous membrane, 503: degassing promotion mechanism, 510: carbon dioxide capture material, 512: gas to be treated, 520: solution, 521: carbonation promotion agent, 530: supply unit, 540: dissolution promotion mechanism, 550: dispersion mechanism, 560: solution adjustment mechanism, 571: support, 572: spacer

Claims (7)

The system includes an operator terminal used by an operator of a thermal power generation facility, a power company device used by a power company that manages the power generated by the thermal power generation facility, and a carbon dioxide capture company device used by a carbon dioxide capture company,
The thermal power generation facility includes an equipment terminal,
The facility terminal has a power generation information transmission unit that transmits a power generation performance value together with facility identification information to the electric power company device,
The electric power company device includes:
a power generation information receiving unit that receives the power generation performance value and the facility identification information from each of the plurality of thermal power generation facilities;
a capture amount calculation unit that calculates a requested amount of carbon dioxide capture according to the power generation performance value;
a request information creation unit that creates request information including the collection request amount;
a request information transmission unit that transmits the request information to the recycling company device;
an absorption value receiving unit that receives a carbon dioxide recovery performance value from the recovery operator device;
a point calculation unit that calculates contribution points to be allocated to each of the operator terminals associated with each of the thermal power generation facilities;
A point transmission unit that transmits the contribution points to the operator terminal.
Carbon dioxide capture system. The carbon dioxide emission supervisor may further include a supervisor device for issuing carbon dioxide credits;
the contribution points are the carbon dioxide credits,
The electric power company device includes:
an absorption value transmitting unit that transmits the recovery result value to the supervisor device;
A credit receiving unit that receives the carbon dioxide credit corresponding to the recovery performance value from the supervisor device.
2. The carbon dioxide capture system of claim 1. Further comprising a carbon dioxide capture unit;
The carbon dioxide capture operator performs carbon dioxide absorption work using the carbon dioxide capture device,
The recovery company device calculates the recovery performance value according to the result of the absorption work.
The carbon dioxide recovery system according to claim 1 or 2. the carbon dioxide capture system includes a capture system;
The capture device comprises:
The method includes the steps of: providing a carbon dioxide capture material; a solution in which the carbon dioxide capture material is immersed; a supply unit that supplies a gas to be treated to the solution; and a storage tank in which the solution is stored;
The carbon dioxide capture material is a layered double hydroxide, a basic metal oxide, a basic metal hydroxide, iron, or an iron compound;
The carbon dioxide capture system of claim 3. A power company device used by a power company that manages power generated by a thermal power generation facility,
a power generation information receiving unit that receives power generation performance values and facility identification information from each of the plurality of thermal power generation facilities;
a capture amount calculation unit that calculates a requested amount of carbon dioxide capture according to the power generation performance value;
a request information creation unit that creates request information including the collection request amount;
a point calculation unit that calculates contribution points to be allocated to an operator terminal associated with each of the plurality of thermal power generation facilities;
A point transmission unit that transmits the contribution points to the operator terminal.
Electricity provider equipment. A carbon dioxide capture method including an equipment operator who operates a thermal power generation facility, an electric power company that manages electric power generated by the thermal power generation facility, and a carbon dioxide capture company that captures carbon dioxide in the atmosphere, in which the equipment operator acquires contribution points as a result of capturing carbon dioxide in accordance with an amount of power generated by the thermal power generation facility,
The electric power company uses an electric power company device,
The electric power company device includes:
receiving a power generation performance value and facility identification information from each of the plurality of thermal power generation facilities;
calculating a requested amount of carbon dioxide capture according to the power generation performance value;
transmitting request information including the requested capture amount to the carbon dioxide capture operator;
Receiving capture information including a carbon dioxide capture performance value from the carbon dioxide capture operator;
calculating the contribution points to be allocated to each of the plurality of thermal power generation facilities according to the recovery performance value;
and transmitting the contribution points to the facility operator.
Carbon dioxide capture methods. The contribution points are carbon dioxide credits,
The electric power company device further comprises:
Transmitting the recovery performance value to a carbon dioxide emission supervisor;
The carbon dioxide credits are received from the carbon dioxide emission supervisor according to the recovery performance value.
The carbon dioxide recovery method according to claim 6.

Images