System for promoting carbon dioxide reduction, service-providing business operator device, reduction business operator device, method for promoting carbon dioxide reduction, and service-providing business operator device program

Abstract

Provided is a system for promoting carbon dioxide reduction, said system comprising a user terminal and a service-providing business operator device. The user terminal has a usage record transmission unit that transmits, to the service-providing business operator device, a usage record which pertains to usage of application software by a user, and user identification information which is unique to the user, and a point reception unit that receives, from the service-providing business operator device, contribution points in accordance with the usage record. The service-providing business operator device has a usage record reception unit that receives the usage record and the user identification information from the user terminal, a request information creation unit that creates request information pertaining to carbon dioxide reduction work on the basis of the usage record, a request information transmission unit that transmits the request information to a reduction business operator device, a reduction value reception unit that receives a reduction result value from the reduction business operator device, a reduction value transmission unit that transmits the reduction result value to a supervisory entity device, a credit reception unit that receives, from the supervisory entity device, carbon dioxide credits in accordance with the reduction result value, a point calculation unit that calculates the contribution points on the basis of the carbon dioxide credits and the usage record, and a point transmission unit that transmits the contribution points to the user terminal.

Description

Carbon dioxide reduction promotion system, service provider device, reduction provider device, carbon dioxide reduction promotion method, and service provider device program

[0001] This disclosure relates to a carbon dioxide reduction promotion system, a service provider device, a reduction business device, a carbon dioxide reduction promotion method, and a service provider device program. This application claims priority to Japanese Application No. 2023-026321 filed on February 22, 2023, and incorporates by reference all of the contents of said Japanese application.

[0002] Patent Document 1 discloses a system that achieves a reduction in carbon dioxide emissions by acquiring carbon dioxide credits according to the usage record of energy-saving devices in each dwelling in an apartment complex.

[0003] Patent Document 2 describes a method for calculating CO2 emissions according to the distance traveled calculated from the charge amount of an electric vehicle. ２ A system is disclosed that manages eco-points awarded to users by associating the amount of reduction with the user who drives the electric vehicle.

[0004] Patent Document 3 discloses a method of converting carbon dioxide into a harmless substance as a carbonate of a high-valent metal and immobilizing it 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.

[0005] JP 2022-139068 A JP 2012-59197 A JP 2007-75773 A

[0006] A carbon dioxide reduction promotion system according to one aspect of the present disclosure comprises a user terminal and a service provider device, wherein the user terminal has a usage history sending unit that sends a user's usage history of application software and user identification information unique to the user to the service provider device, and a point receiving unit that receives contribution points from the service provider device based on the usage history, and the service provider device has a usage history receiving unit that receives the usage history and the user identification information from the user terminal, a request information creation unit that creates request information for carbon dioxide reduction work based on the usage history, a request information sending unit that sends the request information to the reduction provider device, a reduction value receiving unit that receives a reduction actual value from the reduction provider device, a reduction value sending unit that sends the reduction actual value to a supervisor device, a credit receiving unit that receives carbon dioxide credits based on the reduction actual value from the supervisor device, a point calculation unit that calculates the contribution points based on the carbon dioxide credits and the usage history, and a point sending unit that sends the contribution points to the user terminal.

[0007] FIG. 1 is a conceptual diagram illustrating the basic configuration of a carbon dioxide reduction promotion system according to an embodiment. FIG. 2 is a diagram illustrating the configuration of the carbon dioxide reduction promotion system according to an embodiment. FIG. 3 is a diagram illustrating an example of the functional internal configuration of a user terminal. FIG. 4 is a diagram illustrating an example of the functional internal configuration of a service provider device. FIG. 5 is a diagram illustrating an example of the functional internal configuration of a reduction provider device. FIG. 6 is a diagram illustrating the configuration of a carbon dioxide reduction promotion system according to a second embodiment. FIG. 7 is a diagram illustrating an example of the functional internal configuration of a service provider device. FIG. 8 is a perspective view schematically illustrating an example of a capture device. FIG. 9 is a diagram schematically illustrating a cross section of the capture device of FIG. 8 taken along line II-II.

[0008] [Problem to be Solved by the Present Disclosure] Demand for carbon dioxide reduction is increasing. As disclosed in Patent Documents 1 and 2, reductions are not only being promoted by public organizations and companies, but also by individuals. With the recent widespread use of smartphones and personal computers, power consumption at the individual level is on the rise. In particular, the increased use of various application software, such as music, video, games, and social networking services, in the entertainment field, is significantly increasing power consumption. Individual users of application software can contribute to carbon dioxide reduction by either reducing power consumption by cutting down on application software usage or by replacing the energy they use with so-called green energy.

[0009] The above measures only reduce carbon dioxide emissions. They do not actually reduce the carbon dioxide emitted into the atmosphere. The disclosures in Patent Documents 1 and 2 are limited to reducing carbon dioxide emissions through the use of energy-saving equipment and electric vehicles. There is no disclosure about reducing the carbon dioxide actually present in the atmosphere.

[0010] The purpose of this disclosure is to promote carbon dioxide reduction activities primarily at the individual level by allowing individuals to quantitatively achieve the effects of carbon dioxide reduction, and to promote the reduction of carbon dioxide actually present in the atmosphere.

[0011] [Effects of the Present Disclosure] According to the present disclosure, by quantitatively achieving the effect of carbon dioxide reduction, carbon dioxide reduction activities are promoted primarily at the individual level. Furthermore, reduction of carbon dioxide present in the atmosphere is promoted. [Description of Embodiments of the Present Disclosure] Below, embodiments of the present disclosure are listed and described.

[0012] (1) A carbon dioxide reduction promotion system according to an embodiment of the present disclosure comprises a user terminal and a service provider device, wherein the user terminal has a usage history sending unit that sends a user's usage history of application software and user identification information unique to the user to the service provider device, and a point receiving unit that receives contribution points corresponding to the usage history from the service provider device, and the service provider device has a usage history receiving unit that receives the usage history and the user identification information from the user terminal, a request information creation unit that creates request information for carbon dioxide reduction work based on the usage history, a request information sending unit that sends the request information to the reduction business device, a reduction value receiving unit that receives a reduction achievement value from the reduction business device, a reduction value sending unit that sends the reduction achievement value to a supervisor device, a credit receiving unit that receives carbon dioxide credits corresponding to the reduction achievement value from the supervisor device, a point calculation unit that calculates the contribution points based on the carbon dioxide credits and the usage history, and a point sending unit that sends the contribution points to the user terminal.

[0013] According to the carbon dioxide reduction promotion system described in (1) above, the effect of carbon dioxide reduction can be quantitatively obtained, which promotes reduction activities mainly at the individual level. Also, the reduction of carbon dioxide actually present in the atmosphere can be promoted.

[0014] (2) A carbon dioxide reduction promotion system according to another embodiment of the present disclosure includes a user terminal and a service provider device, wherein the user terminal includes a usage history sending unit that sends the user's usage history of application software and user identification information unique to the user to the service provider device, and a credit receiving unit that receives carbon dioxide credits from a supervisor device, and the service provider device includes a usage history receiving unit that receives the usage history and the user identification information from the user terminal, a request information creation unit that creates request information for carbon dioxide reduction work based on the usage history, a request information sending unit that sends the request information to the reduction provider device, a reduction value receiving unit that receives actual reduction values ​​from the reduction provider device, an actual distribution value calculation unit that calculates an actual distribution value to be allocated to the user from the actual reduction values, and an actual distribution value sending unit that sends the actual distribution value together with the user identification information to the supervisor device.

[0015] According to the carbon dioxide reduction promotion system described in (2) above, users can directly acquire carbon dioxide credits, which are obtained as official certification. Acquiring carbon dioxide credits promotes carbon dioxide reduction activities, primarily at the individual level. It also promotes the reduction of carbon dioxide actually present in the atmosphere.

[0016] (3) In the above (1) or (2), the carbon dioxide reduction promotion system may further include a record storage unit that stores the usage record and the user identification information in association with each other. This allows the carbon dioxide reduction promotion system to easily store the usage record and the user identification information.

[0017] (4) In the above (1) or (2), the service provider device may further include a record storage unit that stores the usage record and the user identification information in association with each other, thereby enabling the service provider to easily refer to the usage record and the user identification information.

[0018] (5) In any of (1) to (4) above, the carbon dioxide reduction promotion system further includes a capture device that performs the carbon dioxide reduction work, the capture device having a carbon dioxide capture material, a solution in which the carbon dioxide capture material is immersed, a supply unit that supplies the gas to be treated to the solution, and a storage tank in which the solution is stored, and the carbon dioxide capture material may include at least one of a layered double hydroxide, a basic metal oxide, a basic metal hydroxide, iron, or an iron compound.

[0019] 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 Patent Document 3. This device uses a carbon dioxide capture material such as a layered double hydroxide, a basic metal oxide, a basic metal hydroxide, iron, or an iron compound to reduce carbon dioxide in gas as a capture product such as iron carbonate. In other words, by using this capture device, it is possible to capture and reduce carbon dioxide actually present in gases such as the atmosphere, thereby reducing the amount of carbon dioxide.

[0020] According to the carbon dioxide reduction promotion system described above in (5), it is possible to promote the reduction of carbon dioxide actually present in the atmosphere, and by quantitatively obtaining the effects of carbon dioxide reduction, reduction activities are promoted mainly at the individual level.

[0021] (6) The service provider device of the present disclosure includes a usage history receiving unit that receives the user's usage history of application software and user identification information from the user terminal, a request information creation unit that creates request information for carbon dioxide reduction work based on the usage history, a request information sending unit that sends the request information to the reduction provider device, a reduction value receiving unit that receives an actual reduction value from the reduction provider device, a reduction value sending unit that sends the actual reduction value to a supervisor device, a credit receiving unit that receives carbon dioxide credits corresponding to the actual reduction value from the supervisor device, a point calculation unit that calculates contribution points based on the carbon dioxide credits and the usage history, and a point sending unit that sends the contribution points to the user terminal.

[0022] The service provider device (6) above is used in the carbon dioxide reduction promotion system (1) above. According to the carbon dioxide reduction promotion system (1) above, reduction activities are promoted mainly at the individual level by quantitatively obtaining the effects of carbon dioxide reduction. Furthermore, reduction of carbon dioxide actually present in the atmosphere is promoted.

[0023] (7) A service provider device used in a carbon dioxide reduction promotion system that is another embodiment of the present disclosure includes a usage history receiving unit that receives user usage history of application software by a user and user identification information from a user terminal, a request information creation unit that creates request information for carbon dioxide reduction work based on the usage history, a request information sending unit that sends the request information to a reduction provider device, a reduction value receiving unit that receives actual reduction values ​​from the reduction provider device, an actual distribution value calculation unit that calculates an actual distribution value to be allocated to the user from the actual reduction values, and an actual distribution value sending unit that sends the actual distribution value together with the user identification information to a supervisor device.

[0024] The service provider device of (7) above is used in the configuration of the carbon dioxide reduction promotion system of (2) above. According to the carbon dioxide reduction promotion system of (2) above, users can directly acquire carbon dioxide credits, which are obtained as official certification. Acquiring carbon dioxide credits promotes carbon dioxide reduction activities, mainly at the individual level. It also promotes the reduction of carbon dioxide actually present in the atmosphere.

[0025] (8) The service provider device of (6) or (7) may further include a record storage unit that stores the usage record and the user identification information in association with each other, thereby enabling the service provider to easily refer to the record for each user.

[0026] (9) A reduction business operator device according to an embodiment of the present disclosure includes a request information receiving unit that receives request information for carbon dioxide reduction work from a service provider device, and a reduction value sending unit that sends actual reduction values ​​to the service provider device.

[0027] The carbon dioxide reduction business operator device (9) is used in the carbon dioxide reduction promotion system (1) or (2) above. According to the carbon dioxide reduction promotion system (1) or (2) above, reduction activities are promoted mainly at the individual level by quantitatively obtaining the effects of carbon dioxide reduction. Furthermore, reduction of carbon dioxide actually present in the atmosphere is promoted.

[0028] (10) A carbon dioxide reduction promotion method according to an embodiment of the present disclosure is a carbon dioxide reduction promotion method in which a user earns contribution points based on their usage history of application software, stores the usage history in association with user identification information unique to the user, requests a carbon dioxide reduction business operator to carry out carbon dioxide reduction work, receives a reduction performance value from the carbon dioxide reduction business operator upon completion of the carbon dioxide reduction work, provides the reduction performance value to a carbon dioxide emission supervisor, receives carbon dioxide credits from the carbon dioxide emission supervisor based on the reduction performance value, and awards the contribution points calculated based on the carbon dioxide credits and the usage history to the user.

[0029] According to the method for promoting carbon dioxide reduction described in (10) above, the effect of carbon dioxide reduction can be quantitatively obtained, thereby promoting reduction activities mainly at the individual level. Also, the reduction of carbon dioxide actually present in the atmosphere can be promoted.

[0030] (11) A carbon dioxide reduction promotion method according to an embodiment of the present disclosure is a carbon dioxide reduction promotion method in which a user acquires carbon dioxide credits according to their usage history of application software, the method storing the usage history in association with user identification information unique to the user, requesting a carbon dioxide reduction business operator to carry out carbon dioxide reduction work, receiving a reduction actual value upon completion of the carbon dioxide reduction work from the carbon dioxide reduction business operator, providing a distributed actual value of the reduction actual value to be distributed to the user together with the user identification information to a carbon dioxide emission supervisor, and the user receiving the carbon dioxide credits according to the distributed actual value from the carbon dioxide emission supervisor.

[0031] According to the carbon dioxide reduction promotion method (11) above, users can directly acquire carbon dioxide credits, which are obtained as official certification. Acquiring carbon dioxide credits promotes carbon dioxide reduction activities, primarily at the individual level. It also promotes the reduction of carbon dioxide actually present in the atmosphere.

[0032] (12) A service provider device program according to an embodiment of the present disclosure is a service provider device program used in a service provider device included in a carbon dioxide reduction promotion system, and causes the service provider device to function as a usage history receiving unit that receives user usage history of application software and user identification information from the user terminal, a history memory unit that stores the usage history and the user identification information in association with each other, a request information creation unit that creates request information for carbon dioxide reduction work based on the usage history, a request information sending unit that sends the request information to the reduction business device, a reduction value receiving unit that receives actual reduction values ​​from the reduction business device, a reduction value sending unit that sends the actual reduction values ​​to a supervisor device, a credit receiving unit that receives carbon dioxide credits corresponding to the actual reduction values ​​from the supervisor device, a point calculation unit that calculates contribution points based on the carbon dioxide credits and the usage history, and a point sending unit that sends the contribution points to the user terminal.

[0033] By implementing the service provider device program in (12) above in the service provider device in (6) above, the effect of carbon dioxide reduction can be quantitatively obtained, thereby promoting reduction activities mainly at the individual level. Also, the reduction of carbon dioxide actually present in the atmosphere can be promoted.

[0034] (13) A service provider device program according to an embodiment of the present disclosure is a service provider device program used in a service provider device included in a carbon dioxide reduction promotion system, and causes the service provider device to function as a usage history receiving unit that receives user usage history of application software by a user and user identification information from a user terminal, a request information creation unit that creates request information for carbon dioxide reduction work based on the usage history, a request information sending unit that sends the request information to the reduction business device, a reduction value receiving unit that receives actual reduction values ​​from the reduction business device, an actual distribution value calculation unit that calculates an actual distribution value to be allocated to the user from the actual reduction values, and an actual distribution value sending unit that sends the actual distribution value together with the user identification information to a supervisor device.

[0035] By implementing the service provider device program in (13) above in the service provider device in (7) above, the effect of carbon dioxide reduction can be quantitatively obtained, thereby promoting reduction activities mainly at the individual level. Also, the reduction of carbon dioxide actually present in the atmosphere can be promoted.

[0036] (14) The service provider device program of (12) or (13) above may further include a function as a record storage unit that stores the usage record and the user identification information in association with each other. This makes it possible to easily store the usage record and the content of the user identification information in association with each other.

[0037] [Details of the embodiment of the present disclosure] The embodiment of the present disclosure will be described with reference to the drawings. Note that the embodiment described below shows one specific example of the present disclosure. The numerical values, shapes, materials, components, arrangement and connection of the components, procedures, etc. described below are examples of the embodiment. Also, each figure is a schematic diagram and is not necessarily drawn precisely. The same components in the figures are given the same reference numerals. Descriptions of the functions of the same components will be omitted as appropriate. Note that in the following description and illustrations, carbon dioxide will be referred to as CO ２ It may be expressed as a molecular formula.

[0038] <Embodiment> (Basic Configuration of Carbon Dioxide Reduction Promotion System) The basic configuration of a carbon dioxide reduction promotion system 10 of the present disclosure will be described with reference to Fig. 1. Fig. 1 illustrates an example in which there are two users, user 1 and user 2. User 1 uses user terminal 11, and user 2 uses user terminal 12. Application software (hereinafter sometimes referred to as "app") provided by or managed by service provider 20 is installed on user terminals 11 and 12, respectively.

[0039] In this disclosure, the term "app" broadly includes software that a user runs on, for example, a user terminal, and software that serves as an interface for providing services to the user. In this disclosure, "installation" is not limited to software being deployed to a user terminal and running on the user terminal. For example, installation may also be interpreted as including running software hosted on an external server or cloud via a network from an app on the user terminal, thereby enabling the user terminal to receive services. Similarly, "using an app on a user terminal" includes running the app directly on the user terminal and running the software indirectly via a network. While the following description illustrates two users, the number of users is not limited to this, and the system of this disclosure envisions one or more users. The user terminal may be, for example, a smartphone, tablet, game console, or personal computer. Note that the app may also be used on a terminal provided by a service provider.

[0040] A service provider 20, which is a provider or operator of an app, operates a service provider device 21. The service provider device 21 is a device that performs various data processing related to the service provider 20, and is typically a general-purpose computer such as a personal computer, workstation, or server. The service provider device 21 can communicate with user terminals 11 and 12 via a network 50. Through communication between the service provider device 21 and the user terminals 11 and 12, the service provider device 21 can grasp the usage status of the app on the user terminals 11 and 12.

[0041] The carbon dioxide reduction business operator 30 is a business operator that operates a carbon dioxide reduction device 32. The carbon dioxide reduction business operator 30 operates the carbon dioxide reduction device 32 upon request from another party and reports the amount of carbon dioxide reduced to the requester. The carbon dioxide reduction device 32 is a device that reduces, captures, and reduces carbon dioxide from gases such as the atmosphere and various exhaust gases. Specific examples of the carbon dioxide reduction device 32 will be described later. The carbon dioxide reduction business operator 30 operates a reduction business operator device 31. The reduction business operator device 31 is a device that processes requests from outside and processes data related to carbon dioxide reduction by the carbon dioxide reduction device 32. The reduction business operator device 31 is typically a general-purpose computer such as a personal computer, workstation, or server. The reduction business operator device 31 is capable of communicating with other devices via a network 50.

[0042] The carbon dioxide emission supervisor 40 is, for example, a national or local government, a public institution, or a business operator 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 contributions to reductions, etc., and providing compensation according to reductions, etc. The carbon dioxide emission supervisor 40 owns and operates a supervisor device 41. The supervisor device 41 is a device that processes data related to the above-mentioned certification, etc., and is typically a general-purpose computer. The supervisor device 41 is capable of communicating with other devices via a network 50.

[0043] <Embodiment 1> One embodiment of the present disclosure is a carbon dioxide reduction promotion system 10 in which a user 1 who uses an app provided by a service provider 20 on a user terminal 11 earns contribution points from the service provider 20 according to the track record of using the app. In the following explanation of the system, user 1 will be described as a representative, but there may be multiple users in the embodiment, and the number of users is not limited.

[0044] The operation of the carbon dioxide reduction promotion system 10 according to the first embodiment of the present disclosure will be described with reference to FIGS. 1 and 2. FIG.

[0045] The service provider device 21 receives an application usage record 81 and user identification information 82 from the user terminal 11 through communication with the user terminal 11. The usage record 81 is stored in the service provider device 21 in association with the user identification information 82 of user 1. The service provider device 21 creates request information 83. The request information 83 includes the amount of work for the carbon dioxide reduction work corresponding to the usage record 81. The service provider device 21 transmits the created request information 83 to the reduction provider device 31. The service provider device 21 receives, from the reduction provider device 31, an actual reduction value 84 associated with the completion of the carbon dioxide reduction work. The service provider device 21 transmits the actual reduction value 84 to the supervisor device 41. The supervisor device 41 issues carbon dioxide credits 85 corresponding to the reported actual reduction value 84. The service provider device 21 receives the carbon dioxide credits 85 from the supervisor device 41. The service provider device 21 calculates contribution points 86 based on the received carbon dioxide credits 85 and the usage record 81 of the user terminal 11. The service provider device 21 transmits the calculated contribution points 86 to the user terminal 11 .

[0046] The transmission of contribution points 86 to the user terminal 11 is not limited to the direct transmission of the contribution points 86 themselves. As is commonly practiced in many point systems, the points themselves may be virtual numerical values ​​and may be managed as numerical values ​​(e.g., point balances) assigned to registered users on the server of the operator that manages the points. In this case, the contribution points 86 are considered to be transmitted to the user terminal 11 when the user terminal 11 is notified of the addition of the contribution points 86. Furthermore, the transmission of contribution points 86 to the user terminal 11 is not limited to active transmission from the service provider device 21, but may also be a notification in the form of the user 1 returning a numerical value in response to data reference from the service provider device 21, etc.

[0047] The above explanation relates to user 1 and user terminal 11. If there are multiple users, such as user 2, the same applies to each user. In the case of multiple users, the request information 83 sent from service provider device 21 to reduction business device 31 may be a single request information 83 that combines requests related to multiple users. In addition, the actual reduction value 84 sent from service provider device 21 to supervisor device 41 and the carbon dioxide credits 85 received from supervisor device 41 may also be total values ​​related to multiple users.

[0048] In this disclosure, tangible and intangible items that are granted as certification and have economic value and are tradable are collectively referred to as carbon dioxide credits 85. 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 based on the principle that "The J-Credit Scheme is a scheme that allows creditors to reduce CO₂ emissions by introducing energy-saving equipment and using renewable energy." ２ and CO emissions reductions through appropriate forest management. ２"This is a system in which the government certifies reductions in emissions, etc. as "credits." This system is a progressive integration of the domestic credit system and the offset credit (J-VER) system, and is run by the government. Credits created through this system can be used for a variety of purposes, including achieving the goals of the Keidanren Carbon Neutral Action Plan and carbon offsetting." Owners of these credits can obtain economic and social benefits in a variety of ways, such as selling the credits.

[0049] (User Terminal) The user 1 is, for example, an individual or a corporation that owns the user terminal 11. Ownership is not limited to a legal relationship, and may be a concept that includes a person who actually receives benefits related to the user terminal 11. The user terminal 11 may typically be a smartphone, tablet terminal, or personal computer used by the user 1. The user terminal 11 is configured to be able to communicate via a network 50.

[0050] 3, an app 110 provided by a service provider 20 is installed in a user terminal 11. The user terminal 11 includes a usage history sending unit 120. The usage history sending unit 120 sends a usage history 81 of the app 110 and user identification information 82 unique to the user 1 and the user terminal 11 to a service provider device 21 owned by the service provider 20. The user terminal 11 also includes a point receiving unit 130 that receives contribution points 86 from the service provider device 21. Other basic components that the user terminal 11 originally has as functions are not shown. For example, if the user terminal 11 is a smartphone, the basic components include an input unit, a communication unit, a display unit, etc.

[0051] User 1 uses app 110 using the user terminal 11. The usage history transmission unit 120 has a function of tallying usage history 81 of app 110 and transmitting the usage history 81 to the service provider device 21 at a predetermined timing. The usage history 81 mainly indicates the time when app 110 was used and may also include specific usage conditions such as the date and time of use, the location of use, and the operation of app 110. The timing at which the usage history 81 is transmitted is not particularly limited, but may include, for example, when use of app 110 is finished, at a regular time such as once a day or once an hour, or when specified by the user. In addition to transmitting the usage history 81, the usage history transmission unit 120 transmits user identification information 82 unique to user 1 and the user terminal 11 to the service provider device 21. The user identification information 82 may be, for example, information such as user 1's name or a pre-assigned ID. The user identification information 82 may also be a device number or address information unique to the user terminal 11.

[0052] The point receiving unit 130 receives contribution points 86 provided by the service provider 20 from the service provider device 21. The contribution points 86 here are not particularly limited as long as they allow the user 1 to directly or indirectly enjoy economic benefits. The contribution points 86 may be, for example, points from various point systems, miles from a mileage system, electronic money, virtual currency, or discount coupons. The point receiving unit 130 and the usage history sending unit 120 may be configured as software integrated with the app 110. In other words, the point receiving unit 130 and the usage history sending unit 120 may be configured as part of the functions of the app 110.

[0053] (Service Provider Device and Reduction Provider Device) As shown in FIG. 1 , the service provider device 21 is a device operated by the service provider 20. The reduction provider device 31 is a device operated by the carbon dioxide reduction business operator 30. As shown in FIG. 2 , the service provider device 21 is a device that performs a series of operations, in which the service provider 20 grasps the usage history 81 of the app 110 of the user 1, requests the carbon dioxide reduction business operator 30 to perform carbon dioxide reduction work in accordance with the usage history 81, reports the reduction result value 84 to the carbon dioxide emission supervisor 40, receives carbon dioxide credits 85, and grants the user 1 contribution points 86 corresponding to the carbon dioxide credits 85. The reduction business operator device 31 is a device that the carbon dioxide reduction business operator 30 uses to receive carbon dioxide reduction request information 83 and sends the reduction result value 84 to the service provider device 21.

[0054] Referring to FIG. 4 , the service provider device 21 is a device including at least a processing unit 210, a communication unit 220, and a storage unit 230. The service provider device 21 may also include a general display unit, input unit, etc., but these are not shown in FIG. 4 . The service provider device 21 may be configured, for example, by a computer including a central processing unit (CPU), random access memory (RAM), read-only memory (ROM), a communication interface, an input / output interface, etc. The processing unit 210, communication unit 220, storage unit 230, etc. are connected to each other via a bus 240. The storage unit 230 is configured, for example, by a volatile or non-volatile memory element. The storage unit 230 stores programs and data. For example, a program stored in the ROM is expanded into the RAM and executed on the CPU, thereby realizing the functions of the processing unit 210. The communication unit 220 is configured, for example, to transmit and receive Ethernet frames, which are data generated by the processing unit 210, to and from the outside via a network 50, which is Ethernet (registered trademark). Referring to FIG. 5 , the energy-saving business operator device 31 includes at least a calculation unit 310, a communication unit 313, and a storage unit 314. The energy-saving business operator device 31 may also include a general display unit, input unit, etc., but these are not shown in FIG. 5 . The energy-saving business operator device 31 may be configured, for example, by a computer including a central processing unit (CPU), random access memory (RAM), read-only memory (ROM), a communication interface, an input / output interface, etc. The calculation unit 310, communication unit 313, storage unit 314, etc. are connected to each other via a bus 315. The storage unit 314 is configured, for example, by a volatile or non-volatile memory element. The storage unit 314 stores programs and data. For example, a program stored in the ROM is expanded into the RAM and executed on the CPU, thereby realizing the functions of the calculation unit 310. The communication unit 313 is configured, for example, to transmit and receive Ethernet frames, which are data generated by the calculation unit 310, to and from the outside via a network 50, which is Ethernet (registered trademark).

[0055] 2 and 4, the functional units of the calculation unit 210 will be described below. These functional units are stored in the storage unit 230 and are executed by a program executed by the processor.

[0056] The calculation unit 210 includes a usage history receiving unit 211 that receives the usage history 81 and the user identification information 82 from the user terminal 11. The contents of the usage history 81 and the user identification information 82 are as described above. The calculation unit 210 includes a history storage unit 212 that stores the usage history 81 and the user identification information 82 in association with each other. The history storage unit 212 writes to the storage unit 230, for each user, information on how much each user has used the app 110. Note that the service provider device 21 does not necessarily have to include the history storage unit 212. In this case, for example, a cloud service or an external storage medium may be used to store the usage history 81 and the user identification information 82 in association with each other.

[0057] The calculation unit 210 includes a request information creation unit 213 that creates request information 83 for carbon dioxide reduction work based on the stored usage history 81. The request information 83 is data including the amount of carbon dioxide reduction requested from the carbon dioxide reduction business operator 30 and general information such as requester information and delivery date. The carbon dioxide reduction amount included in the request information 83 is a value calculated from the usage history 81. The carbon dioxide reduction amount is calculated, for example, as follows: If the usage history 81 is, for example, the usage time of the app 110, an estimated power consumption is calculated from the usage time. The amount of carbon dioxide generation corresponding to the power consumption is calculated using a predetermined method. The calculated amount of carbon dioxide generation may be used as the requested carbon dioxide reduction amount. In other words, the idea is to calculate the amount of energy consumed by the user 1 or the user terminal 11 according to the use of the app 110, and reduce the amount of carbon dioxide according to the amount of carbon dioxide generation estimated from the amount of energy. Various methods for calculating the amount of carbon dioxide reduction from the usage history 81 can be determined and are not limited. These calculations may be performed using a predetermined mathematical formula or by referencing a predetermined table of numerical relationships stored in the storage unit 230. This calculation method is implemented by a program as a function of the request information creation unit 213. Note that the calculation of the requested carbon dioxide reduction amount may take into consideration various circumstances, such as a separate purchase request from the user 1 for a carbon dioxide reduction amount or the acquisition of a carbon dioxide reduction amount in response to an event occurring within the app 110.

[0058] The timing of creating the request information 83 can be determined arbitrarily depending on the timing of the work request from the service provider 20 to the carbon dioxide reduction business operator 30. Furthermore, the request information 83 may include the carbon dioxide reduction amount corresponding to the usage history 81 for each user, or may include the carbon dioxide reduction amount corresponding to the total value obtained by aggregating the usage history 81 of multiple users. The service provider 20 may create the request information 83 including a predetermined carbon dioxide reduction amount regardless of the usage history 81. The service provider 20 can request carbon dioxide reduction work using the request information 83 created in advance, and obtain the reduction result value 84 at its own timing.

[0059] The request information sending unit 214 performs processing to send request information 83 to the reduction business operator device 31. The reduction value receiving unit 215 performs processing to receive a reduction achievement value 84 from the reduction business operator device 31. The carbon dioxide reduction business operator 30 performs carbon dioxide reduction work by operating the carbon dioxide reduction device 32 in accordance with the request information 83. The amount of carbon dioxide that has actually been reduced is stored in the reduction business operator device 31 as a reduction achievement value 84, and is transmitted from the reduction business operator device 31 to the service provider device 21.

[0060] Each functional unit of the calculation unit 310 will be described below with reference to Fig. 5. Each functional unit is stored in the storage unit 314 and is executed by a program executed by the processor.

[0061] The calculation unit 310 includes a request information performance receiving unit 311 that receives carbon dioxide reduction work request information 83 transmitted from the service provider device 21. The calculation unit 310 includes a reduction value transmitting unit 312 that transmits a reduction performance value 84 to the service provider device 21.

[0062] The transmission of information from the service provider device 21 to the reduction business device 31 and the reception of information from the reduction business device 31 by the service provider device 21 are performed by the function of the communication unit 220 of the service provider 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 service provider device 21 outputs transmission information created by the request information transmission unit 214 and transmits the output transmission information to the reduction business device 31 via other means. Instead of communication via the Internet, a method may be used in which the reduction value receiving unit 215 receives information output from the reduction business device 31 via other input means.

[0063] The calculation unit 210 includes a reduction value transmission unit 216 that transmits the reduction result value 84 received from the reduction business operator device 31 to the supervisor device 41. The calculation unit 210 also includes a credit reception unit 217 that receives carbon dioxide credits 85 corresponding to the reduction result value 84 from the supervisor device 41.

[0064] The timing for transmitting the reduction result value 84 can be determined arbitrarily. The reduction result value 84 to be 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 pieces of request information 83 transmitted multiple times.

[0065] The carbon dioxide emission supervisor 40 issues a carbon dioxide credit 85 in accordance with the actual reduction value 84. The issued carbon dioxide credit 85 is stored in the supervisor device 41 and transmitted from the supervisor device 41 to the service provider device 21.

[0066] The transmission of information from the service provider device 21 to the supervisor device 41 and the reception of information from the supervisor device 41 at the service provider device 21 are performed by the function of the communication unit 220 of the service provider device 21. This transmission and reception is not limited to communication via the Internet by the communication unit 220. For example, instead of communication via the Internet, the service provider device 21 may output transmission information created by the reduction value transmission unit 216 and transmit the output transmission information to the supervisor device 41 via other means. Instead of communication via the Internet, the credit receiving unit 217 may receive information output from the supervisor device 41 via other input means.

[0067] The calculation unit 210 is equipped with 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 usage history 81 of the user 1. As described above, the service provider 20 can determine the relationship between the usage history 81 and the contribution points 86 based on various conditions. In other words, it is not excluded that the contribution points 86 can be determined based on conditions other than the usage history 81. In addition, the calculated contribution points 86 are transmitted to the user terminal 11 by the point transmission unit 219. The contribution points 86 transmitted from the service provider device 21 are received by the point reception unit 130 (see Figure 3) in the user terminal 11.

[0068] Through the above process, user 1 can receive contribution points 86 according to the usage record 81 of the app 110. User 1 can display the app 110 on the user terminal 11 and know that he or she has acquired contribution points 86. In this embodiment, the amount of carbon dioxide emissions estimated from the energy consumption associated with user 1's use of the app 110 corresponds to the amount of carbon dioxide actually reduced from the atmosphere. As a result, carbon dioxide emissions into the atmosphere are offset, and the user can enjoy the benefits of the contribution points 86.

[0069] <Embodiment 2> Embodiment 2 of the present disclosure is a carbon dioxide reduction promotion system 10 in which a user 1 who uses an application provided by a service provider 20 on a user terminal 11 acquires carbon dioxide credits 85 from a carbon dioxide emission supervisor 40 according to a usage record 81 of the app 110. In the following explanation of the system, user 1 will be described as a representative, but there are multiple users in the embodiment and the number of users is not limited. Furthermore, explanations that overlap with embodiment 1 will be omitted.

[0070] The operation of the carbon dioxide reduction promotion system 10 according to the second embodiment of the present disclosure will be described with reference to FIGS. 1 and 6. FIG.

[0071] The service provider device 21 receives an application usage history 81 and user identification information 82 from the user terminal 11 through communication with the user terminal 11. The usage history 81 is stored in the service provider device 21 in association with the user identification information 82 of user 1. The service provider device 21 creates request information 83. The request information 83 includes the amount of work for the carbon dioxide reduction work corresponding to the usage history 81. The service provider device 21 transmits the created request information 83 to the reduction provider device 31. The service provider device 21 receives from the reduction provider device 31 an actual reduction value 84 associated with the completion of the carbon dioxide reduction work. The service provider device 21 calculates an actual distribution value 87 to be distributed to user 1 from the actual reduction value 84 based on user 1's usage history 81. The service provider device 21 creates data associating the actual distribution value 87 with the user identification information 82. The service provider device 21 transmits the data associating the actual distribution value 87 with the user identification information 82 to the supervisor device 41. In other words, the data sent to the supervisor device 41 is data consisting of a combination of users identified by user identification information 82 and actual distribution values ​​87 to be distributed to those users. The supervisor device 41 issues carbon dioxide credits 85 corresponding to each of the reported actual distribution values ​​87. The supervisor device 41 transmits, to the user terminal 11, the carbon dioxide credits 85 to be given to the user 1 corresponding to the user terminal 11. The user terminal 11 receives the carbon dioxide credits 85 from the supervisor device 41.

[0072] The above explanation relates to user 1 and user terminal 11. If there are multiple users, such as user 2, the same applies to each user. In the case of multiple users, the request information 83 sent from the service provider device 21 to the reduction provider device 31 may be a single request that combines requests related to multiple users.

[0073] (User Terminal) The configuration and functions of the user terminal 11 in the second embodiment are similar to those of the user terminal 11 in the first embodiment. Description of the same configuration as in the first embodiment will be omitted. With reference to FIG. 3 , in the second embodiment, the point receiving unit 130 receives carbon dioxide credits 85 from the supervisor device 41. In other words, this can be interpreted as receiving carbon dioxide credits 85 as contribution points 86.

[0074] (Service provider device and reduction provider device) The service provider device 21 is a device operated by the service provider 20. The service provider device 21 is a device that allows the service provider 20 to grasp the usage history 81 of the app 110 of the user 1, request the carbon dioxide reduction business operator 30 to perform carbon dioxide reduction work in accordance with the usage history 81, organize the reduction history value 84 as a distribution history value 87 for each user, and report this to the carbon dioxide emission supervisor 40. The configuration and function of the reduction business operator device 31 are the same as those in the first embodiment, and therefore a description thereof will be omitted.

[0075] Referring to FIG. 7 , the service provider device 21 is a device including at least a processing unit 210, a communication unit 220, and a storage unit 230. The service provider device 21 may also include a general display unit, input unit, etc., but these are not shown in FIG. 7 . The service provider device 21 may be configured, for example, by a computer including a central processing unit (CPU), random access memory (RAM), read-only memory (ROM), a communication interface, an input / output interface, etc. The processing unit 210, communication unit 220, storage unit 230, etc. are connected to each other via a bus 240. The storage unit 230 is configured, for example, by a volatile or non-volatile memory element. The storage unit 230 stores programs and data. For example, a program stored in the ROM is expanded into the RAM and executed on the CPU, thereby realizing the functions of the processing unit 210. The communication unit 220 is configured, for example, to transmit and receive Ethernet frames, which are data generated by the processing unit 210, etc., to and from the outside via a network 50, which is Ethernet (registered trademark).

[0076] 6 and 7, the functional units of the calculation unit 210 will be described. These functional units are stored in the storage unit 230 and executed by a program executed by the processor. Among the functional units of the calculation unit 210, the usage history receiving unit 211, the history storage unit 212, the request information creating unit 213, the request information transmitting unit 214, and the reduction value receiving unit 215 are the same as those in the first embodiment. Description of these functional units will be omitted.

[0077] The calculation unit 210 includes an actual distribution value calculation unit 251 and an actual distribution value transmission unit 252. The actual distribution value calculation unit 251 calculates, as an actual distribution value 87, the amount of carbon dioxide reduction that should be associated with the usage record 81 of the user terminal 11 from the actual reduction value 84 received from the reduction business operator device 31. The actual distribution value transmission unit 252 performs processing to transmit the calculated actual distribution value 87 to the supervisor device 41 together with user identification information 82 that specifies the user terminal 11 to which the actual distribution value 87 is linked.

[0078] The timing for transmitting the distribution actual value 87 can be determined arbitrarily. The transmitted distribution actual value 87 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.

[0079] The carbon dioxide emission supervisor 40 issues carbon dioxide credits 85 according to the individual distribution actual value 87. The issued carbon dioxide credits 85 are stored in the supervisor device 41 and transmitted from the supervisor device 41 to the corresponding user terminal 11.

[0080] The transmission of information from the service provider device 21 to the supervisor device 41 and the reception of carbon dioxide credits 85 from the supervisor device 41 at the user terminal 11 are not limited to communication via the Internet. For example, instead of communication via the Internet, a method may be used in which the service provider device 21 outputs transmission information that organizes data on the user terminal 11 and the actual distribution value 87, and the output transmission information is transmitted to the supervisor device 41 via other means. Instead of communication via the Internet, a method may be used in which the user terminal 11 or the user 1 himself receives the carbon dioxide credits 85 output from the supervisor device 41 via other input means.

[0081] Through the above process, user 1 can receive carbon dioxide credits 85 according to the usage record 81 of app 110. In this embodiment, the amount of carbon dioxide emissions estimated from energy consumption accompanying user 1's use of app 110 corresponds to the amount of carbon dioxide actually reduced from the atmosphere. As a result, carbon dioxide emissions into the atmosphere are offset, and the user can receive this contribution in the form of carbon dioxide credits 85.

[0082] The processing of each functional unit in each of the above-described embodiments is realized by a processing circuit including one or more processors. The processing circuit may be configured as an integrated circuit or the like that combines one or more processors, one or more memories, various analog circuits, and various digital circuits. The one or more memories store programs (instructions) that cause the one or more processors to execute each process. The one or more processors may execute each process according to a program read from one or more memories, or according to a logic circuit pre-designed to execute each process. The processor may be various processors suitable for computer control, such as a central processing unit (CPU), a graphics processing unit (GPU), a digital signal processor (DSP), a field programmable gate array (FPGA), or an application-specific integrated circuit (ASIC). Note that multiple physically separated processors may cooperate with each other to execute each process. For example, processors installed in multiple physically separated computers may cooperate with each other via a network, such as a local area network (LAN), a wide area network (WAN), or the Internet, to execute each process. The program may be installed into memory via a network from an external server device, or may be distributed stored on a recording medium such as a CD-ROM (Compact Disc Read Only Memory), a DVD-ROM (Digital Versatile Disc Read Only Memory), or a semiconductor memory, and then installed into memory from the recording medium.

[0083] <Carbon Dioxide Reduction Device> The carbon dioxide reduction device 32 operated by the carbon dioxide reduction business operator 30 will be described. The carbon dioxide reduction device 32 is a device that reduces, captures, and reduces carbon dioxide from gases such as the atmosphere and various exhaust gases. The carbon dioxide reduction device 32 described in this disclosure is a general term for equipment including a capture device that reduces carbon dioxide, as well as its ancillary equipment, piping, control devices, power sources, etc.

[0084] <Capture Device> As an example of a capture device, a device that uses a carbon dioxide capture material in a solution to fix and reduce carbon dioxide as a captured product will be described. The capture devices applicable to the carbon dioxide reduction promotion system 10 of the present disclosure are not limited to the devices described below, and various devices that can separate and reduce carbon dioxide in gases can be applied. The capture device specifically described below is a device that can be applied to the carbon dioxide reduction promotion system 10 of the present disclosure due to its characteristics of being able to reduce and reduce carbon dioxide with a simple configuration and being able to fix and reduce carbon dioxide in gases as a captured product.

[0085] 8 and 9, the configuration of the capture device 500 will be described. A gas to be treated 512 containing carbon dioxide is supplied to the capture device 500. The carbon dioxide in the gas to be treated 512 is captured in a solution 520 by the action of a carbon dioxide capture material 510.

[0086] The size of the capture device 500 is set appropriately depending on the location and purpose of use. The capture device 500 will be described in detail below.

[0087] 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 a carbon dioxide-containing gas to be treated 512 to the solution 520. The carbon dioxide becomes carbonate ions in the solution 520. The capture device 500 may also include a dissolution promotion mechanism 540 that promotes the dissolution of carbon dioxide into the solution 520, a dispersion mechanism 550 that disperses a plurality of carbon dioxide capture materials 510 in the solution 520, and a porous support 571 on which the carbon dioxide capture materials 510 are disposed. 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 sequestering agent, and a builder to the solution 520.

[0088] (Carbon dioxide capturing material) The carbon dioxide capturing material 510 is in particulate or powder form. In this embodiment, the carbon dioxide capturing material 510 is a particle containing iron or an iron compound as a main component. The carbon dioxide capturing material 510 containing iron as a main component is, for example, iron or an iron alloy. The iron alloy may contain iron and manganese, chromium, molybdenum, aluminum, copper, zinc, nickel, or the like. Examples of iron compounds include iron(II) hydroxide and iron(II) hexacyanoferrate(II). The carbon dioxide capturing material 510 may also be a layered double hydroxide, a basic metal oxide, or a basic metal hydroxide other than iron.

[0089] 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 and are reduced as a captured product.

[0090] The average particle size of the plurality of carbon dioxide capturing 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.

[0091] (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 adhering to the carbon dioxide capturing materials 510, can be easily reduced and washed.

[0092] The support 571 in this embodiment is a porous sheet. A plurality of carbon dioxide capturing 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 capturing materials 510. Furthermore, the plurality of carbon dioxide capturing materials 510 are arranged at intervals on one porous sheet. By arranging the plurality of carbon dioxide capturing materials 510 at intervals from one another, aggregation of the carbon dioxide capturing materials 510 is suppressed, and the effect of capturing carbonate ions and the like by the carbon dioxide capturing materials 510 is likely to be improved.

[0093] The support 571 is, for example, a cloth, a nonwoven fabric sheet, a woven fabric sheet, a sponge sheet, a cellulose fiber sheet such as Japanese 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 capturing 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 a porous sheet, and may be, for example, porous particles or porous yarn.

[0094] When the capture device 500 has a plurality of supports 571, the supports 571 may be arranged at intervals from one another. This configuration makes it possible to easily and stably hold the plurality of carbon dioxide capture materials 510 in a state where they can easily come into contact with carbonate ions and the like.

[0095] When the multiple supports 571 are arranged at intervals from one another, these supports 571 may be arranged with spacers 572 sandwiched between them. In FIGS. 8 and 9 , the multiple supports 571 and the spacers 572 are arranged alternately 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 porous nature of the spacers 572 provides a path for carbonate ions and the like to reach the carbon dioxide capture material 510. The spacers 572 are, for example, mesh or 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 one another.

[0096] (Supply Unit) 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 that can supply the gas containing carbon dioxide into the storage tank 501 from the lower part of the storage tank 501.

[0097] (Solution) The solution 520 always 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.

[0098] The pH of the solution 520 and the potential of the carbon dioxide capturing material 510 may be controlled within a range in which divalent iron ions or divalent iron hydroxide are stable in a potential-pH diagram. In other words, the pH of the solution 520 and the potential of the carbon dioxide capturing material 510 may be controlled so as to increase the content of divalent iron ions or divalent iron hydroxide in the solution 520.

[0099] The solution 520 contains water as a solvent. The solution 520 may also contain a dissolution promoter that promotes dissolution of carbon dioxide into the solution 520, and may also contain a pH buffer. The solution 520 may also contain a salt that exhibits acidity in the solution 520 in order to lower the pH of the solution 520. The solution 520 may also contain a carbonation promoter 521 that promotes the carbonation of iron ions eluted from the carbon dioxide capture material 510. The dissolution promoter is, for example, carbonic anhydrase. Carbonic anhydrase converts bicarbonate ions (HCO ３ － ) is promoted. The pH buffer facilitates maintaining the pH of the solution 520 at a desired value. Examples of pH buffers include sodium tartrate, sodium acetate, sodium borate, sodium citrate, ammonium chloride, and sodium phosphate. Salts that exhibit acidity in the solution 520, i.e., salts that exhibit acidity when dissolved in the solution 520, include sodium hydrogen sulfate, ammonium hydrogen sulfate, sodium dihydrogen phosphate, iron (II) sulfate, and iron (II) chloride. By including salts in the solution 520 in this manner, the pH of the solution 520 can be easily reduced. In this embodiment, the carbonation accelerator 521 is particulate. The carbonation accelerator 521 is primarily composed of iron carbonate or iron bicarbonate. The carbonation accelerator 521 can serve as seed crystals for carbonating iron ions.

[0100] 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 bicarbonate ion (HCO３ － ) is generated.

[0101] (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 carbon dioxide capture efficiency.

[0102] 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.

[0103] 8 and 9 , the capture device 500 includes a bubble generator as the dissolution promotion mechanism 540. The bubble generator is disposed in a flow path of the carbon dioxide-containing gas from the supply unit 530 to the storage tank 501. The bubble generator generates fine bubbles from the carbon dioxide-containing gas and supplies them to the solution 520.

[0104] (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 agglomeration. As the dispersion mechanism 550, a device that generates a water flow in the solution 520, such as an ultrasonic generator or a stirrer, can be used. FIG. 8 shows an ultrasonic generator as the dispersion mechanism 550. Alternatively, a device that attracts, fractionates, and fixes (fixes at a specific position) the carbon dioxide capturing materials 510 using magnetic force can also be used as the dispersion mechanism 550. Such a device is, for example, a magnetic separation device.

[0105] (Solution Adjustment Mechanism) The solution adjustment mechanism 560 supplies an acidic substance to the solution 520 when, for example, the pH of the solution 520 increases. The acidic substance is, for example, the above-mentioned salt or a solution in which this salt is dissolved.

[0106] (Storage Tank) The storage tank 501 stores the solution 520. 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 carbonation promoter 521 described above at a distance from the carbon dioxide capture material 510 and the support 571.

[0107] 9 , the porous membrane 502 separates, for example, the carbonation promoter 521 from the carbon dioxide capturing material 510 and the support 571 above and below in 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 using the porous membrane 502 in this manner, it is possible to easily reduce iron carbonate and the like using the carbonation promoter 521 as seed crystals, as described above.

[0108] 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 prevent iron carbonate and the like, which uses the carbonation promoter 521 as seed crystals, from coating the carbon dioxide capture material 510, thereby further suppressing a decrease in the activity of the carbon dioxide capture material 510. Furthermore, 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.

[0109] (Degassing Promotion Mechanism) The degassing promotion mechanism 503 is disposed above 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 capturing device 500. Furthermore, the degassing promotion mechanism 503 discharges the gas to the outside of the capturing 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 oxidizing effect of the dissolved oxygen in the solution 520, making it easier to maintain an increased ratio of divalent iron ions in the solution 520.

[0110] It should be noted that 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 within the scope and meaning equivalent to the claims.

[0111] 1, 2 User 11, 12 User terminal 110 Application (app) 120 Usage record transmission unit 130 Point reception unit 10 Carbon dioxide reduction promotion system 20 Service provider 21 Service provider device 210 Calculation unit 211 Usage record reception unit 212 Record storage unit 213 Request information creation unit 214 Request information transmission unit 215 Reduction value reception unit 216 Reduction value transmission unit 217 Credit reception unit 218 Point calculation unit 219 Point transmission unit 251 Distribution result value calculation unit 252 Distribution result value transmission unit 220 Communication unit 230 Storage unit 240 Bus 30 Carbon dioxide (CO ２ ) Reduction business operator 31 Reduction business operator device 310 Calculation unit 311 Request information receiving unit 312 Reduction value transmitting unit 313 Communication unit 314 Storage unit 315 Bus 32 Carbon dioxide (CO ２ ) Reduction Device 40 Carbon Dioxide (CO ２ ) Emission supervisor 41 Supervisor device 50 Network 81 Usage record 82 User identification information 83 Request information 84 Reduction record value 85 Carbon dioxide (CO ２ ) Credits 86 Contribution points 87 Actual distribution value 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 promoter 530 Supply unit 540 Dissolution promotion mechanism 550 Dispersion mechanism 560 Solution adjustment mechanism 571 Support 572 Spacer

Claims

1. A user terminal; a service provider device; The user terminal a usage history sending unit that sends the usage history of the application software by the user and user identification information unique to the user to the service provider device; a point receiving unit that receives contribution points according to the usage record from the service provider device, The service provider device a usage history receiving unit that receives the usage history and the user identification information from the user terminal; a request information creation unit that creates request information for carbon dioxide reduction work based on the usage record; a request information transmitting unit that transmits the request information to the reduction business device; a reduction value receiving unit that receives a reduction result value from the reduction business operator device; a reduction value transmitting unit that transmits the reduction result value to a supervisor device; a credit receiving unit that receives carbon dioxide credits corresponding to the reduction performance value from the supervisor device; a point calculation unit that calculates the contribution points based on the carbon dioxide credits and the usage record; a point transmission unit that transmits the contribution points to the user terminal; Carbon dioxide reduction promotion system.

2. A user terminal; a service provider device; The user terminal a usage history sending unit that sends the usage history of the application software by the user and user identification information unique to the user to the service provider device; a credit receiving unit for receiving carbon dioxide credits from the supervisor device; The service provider device a usage history receiving unit that receives the usage history and the user identification information from the user terminal; a request information creation unit that creates request information for carbon dioxide reduction work based on the usage record; a request information transmitting unit that transmits the request information to the reduction business device; a reduction value receiving unit that receives a reduction result value from the reduction business operator device; a distribution actual value calculation unit that calculates a distribution actual value to be distributed to the user out of the reduction actual value; and a distribution actual value transmitting unit that transmits the distribution actual value together with the user identification information to the supervisor device. Carbon dioxide reduction promotion system.

3. 3. The carbon dioxide reduction promotion system according to claim 1, further comprising a record storage unit that stores the usage record and the user identification information in association with each other.

4. 3. The carbon dioxide reduction promotion system according to claim 1, wherein the service provider device further comprises a record storage unit that stores the usage record and the user identification information in association with each other.

5. Further comprising a capture device that performs the carbon dioxide reduction operation; The capture device is 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 contains at least one of a layered double hydroxide, a basic metal oxide, a basic metal hydroxide, iron, or an iron compound. The carbon dioxide reduction promotion system according to claim 1 or 2.

6. a usage history receiving unit that receives the usage history of the application software by the user and user identification information from the user terminal; a request information creation unit that creates request information for carbon dioxide reduction work based on the usage record; a request information transmitting unit that transmits the request information to the reduction business device; a reduction value receiving unit that receives a reduction result value from the reduction business operator device; a reduction value transmitting unit that transmits the reduction result value to a supervisor device; a credit receiving unit that receives carbon dioxide credits corresponding to the reduction performance value from the supervisor device; a point calculation unit that calculates contribution points based on the carbon dioxide credits and the usage record; a point transmission unit that transmits the contribution points to the user terminal; Service provider equipment.

7. a usage history receiving unit that receives the usage history of the application software by the user and user identification information from the user terminal; a request information creation unit that creates request information for carbon dioxide reduction work based on the usage record; a request information transmitting unit that transmits the request information to the reduction business device; a reduction value receiving unit that receives a reduction result value from the reduction business operator device; a distribution actual value calculation unit that calculates a distribution actual value to be distributed to the user out of the reduction actual value; and a distribution actual value transmitting unit that transmits the distribution actual value together with the user identification information to a supervisor device. Service provider equipment.

8. 8. The service provider device according to claim 6, further comprising a record storage unit that stores the usage record and the user identification information in association with each other.

9. a request information receiving unit that receives request information for carbon dioxide reduction work from the service provider device; a reduction value transmission unit that transmits a reduction result value to the service provider device, Reduction business equipment.

10. A method for promoting carbon dioxide reduction in which a user earns contribution points according to the usage record of application software, Associating the usage record with user identification information unique to the user Remember, We will request carbon dioxide reduction work from a carbon dioxide reduction business, receiving a reduction result value from the carbon dioxide reduction business operator upon completion of the carbon dioxide reduction work; providing the reduction performance value to a carbon dioxide emission supervisor; receiving carbon dioxide credits from the carbon dioxide emission supervisor according to the reduction performance value; A carbon dioxide reduction promotion method that awards the user with the contribution points calculated based on the carbon dioxide credits and the usage record.

11. A method for promoting carbon dioxide reduction in which a user acquires carbon dioxide credits according to the usage record of application software, storing the usage record in association with user identification information unique to the user; We will request carbon dioxide reduction work from a carbon dioxide reduction business, receiving a reduction result value from the carbon dioxide reduction business operator upon completion of the carbon dioxide reduction work; providing a distribution actual value to be distributed to the user out of the reduction actual value to a carbon dioxide emission supervisor together with the user identification information; The carbon dioxide reduction promotion method, wherein the user receives the carbon dioxide credits according to the actual distribution value from the carbon dioxide emission supervisor.

12. A service provider device program used in a service provider device included in a carbon dioxide reduction promotion system, The service provider device, a usage history receiving unit that receives the usage history of the application software by the user and user identification information from the user terminal; a record storage unit that stores the usage record and the user identification information in association with each other; a request information creation unit that creates request information for carbon dioxide reduction work based on the usage record; a request information transmitting unit that transmits the request information to the reduction business device; a reduction value receiving unit that receives a reduction result value from the reduction business operator device; a reduction value transmitting unit that transmits the reduction result value to a supervisor device; a credit receiving unit that receives carbon dioxide credits corresponding to the reduction performance value from the supervisor device; a point calculation unit that calculates contribution points based on the carbon dioxide credits and the usage record; a point transmitting unit that transmits the contribution points to the user terminal; Service provider equipment program.

13. A service provider device program used in a service provider device included in a carbon dioxide reduction promotion system, The service provider device, a usage history receiving unit that receives the usage history of the application software by the user and user identification information from the user terminal; a request information creation unit that creates request information for carbon dioxide reduction work based on the usage record; a request information transmitting unit that transmits the request information to the reduction business device; a reduction value receiving unit that receives a reduction result value from the reduction business operator device; a distribution actual value calculation unit that calculates a distribution actual value to be distributed to the user out of the reduction actual value; a distribution actual value transmitting unit that transmits the distribution actual value together with the user identification information to a supervisor device; Service provider equipment program.

14. 14. The service provider device program according to claim 12, further comprising causing the program to function as a record storage unit that stores the usage record and the user identification information in association with each other.

15. A user terminal; a service provider device; the user terminal is configured to transmit to the service provider device a usage record of the application software by the user and user identification information unique to the user, and to receive contribution points according to the usage record from the service provider device; the service provider device is configured to transmit to the user terminal the contribution points based on the reduction performance value of the carbon dioxide reduction work based on the usage performance received from the user terminal; Carbon dioxide reduction promotion system.