Environmental value granting system, token management device, token management program, and environmental value granting method

Abstract

To provide an environmental value granting system that is capable of objectively granting an environmental value based on disposal of waste plastic.SOLUTION: An environmental value granting system comprises: a device 9 that decomposes and disposes of waste plastic at a site; a site control device 15 that is communicably connected to the device 9, which disposes of waste plastic at the site, and acquires a disposal amount of waste plastic from the device 9, which disposes of waste plastic; and a token management device 23 that is communicably connected to the site control device 15, acquires the disposal amount of waste plastic from the site control device 15, and issues and manages an environmental value token without a holder at a rate predefined for the acquired disposal amount of waste plastic.SELECTED DRAWING: Figure 1

Description

[Technical field]

[0001] The present invention relates to an environmental value granting system that grants an environmental value based on the disposal of waste plastic, a token management device, a token management program, and an environmental value granting method. [Background technology]

[0002] In recent years, the impact of plastic products that are discarded after use, so-called waste plastics, on the environment has become a global issue. In response to this, efforts are being made to reduce the amount of plastic products used, as well as to increase the amount of waste plastics that is processed.

[0003] As a method for treating waste plastics, oil-recovery technology that decomposes waste plastics to produce oil has been attracting attention from the perspective of effective utilization of resources (see Patent Document 1).

[0004] This oil-to-plastic technology can reduce waste plastics while drastically reducing carbon dioxide emissions, and the oil produced can be reused as fuel to generate energy such as electricity and power.

[0005] Therefore, the conversion of waste plastics into oil and the resulting energy generation and consumption have extremely high environmental value.

[0006] However, there is no established method for objectively evaluating and assigning environmental value to oil and energy that have high environmental value. [Prior art documents] [Patent documents]

[0007] [Patent Document 1] Patent Publication No. 2019-94408 Summary of the Invention [Problem to be solved by the invention]

[0008] The problem that the present invention is intended to solve is that there is no established method for objectively assigning an environmental value to waste plastics based on their disposal. [Means for solving the problem]

[0009] A first aspect of the present invention provides an environmental value granting system comprising: an apparatus for decomposing and disposing of waste plastic at a base; a base control device communicatively connected to the apparatus for disposing of the waste plastic at the base and acquiring the amount of the waste plastic disposed of from the apparatus for disposing of the waste plastic; and a token management device communicatively connected to the base control device and acquiring the amount of the waste plastic disposed of from the base control device, and issuing and managing ownerless environmental value tokens at a predetermined ratio to the acquired amount of waste plastic disposed of.

[0010] A second aspect of the present invention provides a token management device that issues and manages environmental value tokens in accordance with the amount of waste plastic decomposed and disposed of at a base, the token management device comprising a communication interface capable of communicating with a base control device communicatively connected to an apparatus that disposes of the waste plastic at the base, a processor, and a memory device, the processor executing a program in the memory device to provide a transaction information acquisition unit and a token management unit, the transaction information acquisition unit acquiring the amount of the waste plastic disposed of from the base control device, and the token management unit issuing and managing the environmental value tokens without an owner at a predetermined ratio to the amount of the waste plastic disposed.

[0011] A third aspect of the present invention provides a token management program that issues and manages environmental value tokens in accordance with the amount of waste plastic disassembled and disposed of at a base, and provides a token management program that realizes in a computer a communication function that enables communication via a communication interface with a base control device that is communicatively connected to an apparatus that disposes of the waste plastic at the base, a transaction information acquisition function that acquires the amount of waste plastic disposed of from the base control device, and a token management function that issues and manages the environmental value tokens without an owner at a predetermined ratio to the acquired amount of waste plastic disposed of.

[0012] A fourth aspect of the present invention provides an environmental value granting method in which, at a base, an apparatus for decomposing and disposing of waste plastic decomposes and disposes of the waste plastic, a base control device communicatively connected to the apparatus for disposing of the waste plastic at the base acquires the amount of the waste plastic disposed of from the apparatus for disposing of the waste plastic, and a token management device communicatively connected to the base control device acquires the amount of the waste plastic disposed of from the base control device and issues and manages ownerless environmental value tokens at a predetermined ratio to the acquired amount of the waste plastic disposed of. Effect of the Invention

[0013] According to the present invention, it is possible to objectively evaluate and assign environmental value based on the disposal of waste plastics. [Brief description of the drawings]

[0014] [Figure 1] 1 is an overall view showing a schematic configuration of an environmental value imparting system according to a first embodiment of the present invention. [Diagram 2] FIG. 2 is a block diagram showing a base control device of the oil refining base system of the environmental value imparting system of FIG. 1. [Diagram 3] 2 is a block diagram showing a management device of the management system of the environmental value imparting system of FIG. 1. FIG. [Figure 4]2 is a block diagram showing a user terminal of the environmental value granting system of FIG. 1. [Diagram 5] 1 is a flowchart showing an oil refining process performed by the environmental value imparting system according to the first embodiment of the present invention. [Figure 6] 4 is a flowchart showing a power generation process performed by the environmental value imparting system according to the first embodiment of the present invention. [Figure 7] 1 is a flowchart showing a token issuing process according to the first embodiment of the present invention. [Figure 8] 1 is a flowchart showing a token ownership rights generation process at the time of personal consumption of oil according to the first embodiment of the present invention. [Figure 9] 1 is a flowchart showing a token ownership rights generation process when buying and selling oil according to the first embodiment of the present invention. [Figure 10] 1 is a flowchart showing a token ownership right generation process at the time of self-consumption of power according to the first embodiment of the present invention. [Figure 11] 1 is a flowchart showing a token ownership right generation process when buying and selling electricity according to the first embodiment of the present invention. [Figure 12] 1 is a flowchart showing an information storage process according to the first embodiment of the present invention. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0015] The goal of making it possible to objectively assign environmental value based on the disposal of waste plastic is achieved by issuing and managing ownerless environmental value tokens in response to the disposal of waste plastic.

[0016] That is, the environmental value imparting system (1) comprises a device (9) for disposing of waste plastic and a token management device (23). The device (9) for disposing of waste plastic breaks down and disposes of the waste plastic. The token management device (23) issues and manages environmental value tokens according to the amount of waste plastic disposed of.

[0017] The token management device (23) may be configured to include a transaction information acquisition unit (37) and a token management unit (41). The transaction information acquisition unit (37) acquires transaction information related to the produced oil. The token management unit (41) issues and manages environmental value tokens according to the amount of waste plastic disposed of.

[0018] The token management program causes the computer to realize a transaction information acquisition function and a token management function, which correspond to the functions of the transaction information acquisition unit (37) and the token management unit (41) of the token management device (23).

[0019] In the method of assigning environmental value, a device (9) for decomposing and disposing of waste plastic decomposes and disposes of the waste plastic, and a token management device (23) issues and manages environmental value tokens according to the amount of waste plastic disposed of. EXAMPLES

[0020] [Environmental Value Assignment System] FIG. 1 is an overall view showing a schematic configuration of an environmental value imparting system according to a first embodiment of the present invention.

[0021] The environmental value assignment system 1 objectively assigns environmental value based on the conversion of waste plastic into oil, issues environmental value tokens in response to the conversion of waste plastic into oil, and grants ownership of the environmental value tokens to the final consumer of the oil produced by the conversion or the energy generated from this oil.

[0022] The environmental value imparting system 1 of this embodiment is composed of an oil refining base system 3, a management system 5, and a user terminal 7.

[0023] [Oil processing base system] The oil refining base system 3 is constructed at each of a plurality of oil refining bases, and includes an oil refining device 9, a power generating device 11, an electricity selling device 13, and a base control device 15. An oil refining base refers to a base or location where an oil refining device 9 is installed, and may be an oil refining plant, a waste treatment plant, a ship, etc. In the figure, only two oil refining bases are shown for ease of understanding, but three or more oil refining bases may be provided. In the figure, details of only one of the two oil refining bases are shown, and details of the other are omitted.

[0024] In this embodiment, the oil refining base is equipped with a power generation unit 11 in addition to the oil refining apparatus 9. This allows the end consumer to consume the oil produced by the oil refining process or the electricity generated from the oil as energy. However, it is not necessary for all oil refining bases to be equipped with the power generation unit 11. For example, the power generation unit 11 is not necessary in plants, ships, etc. that directly consume the oil produced in the oil refining apparatus 9. It is also possible for all oil refining bases to be configured without being equipped with the power generation unit 11.

[0025] In addition to electricity, energy generated from oil can also include motive power, heat, light, etc. motive power can be generated by burning oil in an internal combustion engine, etc., and heat and light can be generated by burning oil in lamps, stoves, etc.

[0026] The oil-producing apparatus 9 is an apparatus that decomposes waste plastics inputted therein to produce oil. Examples of waste plastics include polypropylene, polyethylene, and polystyrene. The amount of waste plastic inputted is measured in advance or measured at the oil-producing apparatus 9. When measuring at the oil-producing apparatus 9, a load cell or the like may be used. However, any method for measuring the amount of waste plastic inputted may be used. The oil generated at the oil-producing apparatus 9 may be heavy oil, medium oil, light oil, or the like. As the oil-producing apparatus 9, a general oil-producing apparatus that thermally decomposes waste plastics and cools the generated gas to produce oil may be used. However, any method for producing oil at the oil-producing apparatus 9 may be used.

[0027] The power generation device 11 is a device that generates electricity by consuming the oil produced in the oil production device 9. This power generation device 11 may be a general power generation device that performs internal combustion power generation using a gas turbine or a reciprocating engine, thermal power generation using a steam turbine, or the like. However, the power generation method of the power generation device 11 is not limited.

[0028] The supply of oil to the power generation device 11 may be performed by sending the oil directly from the oil production device 9 to the fuel tank of the power generation device 11, or by storing the oil in a storage tank from the oil production device 9 and then sending it to the fuel tank of the power generation device 11 as appropriate. When storing the oil in a storage tank, it is also possible to send only a portion of the produced oil to the fuel tank. When sending only a portion of the oil to the fuel tank, the remaining oil is consumed in-house at the oil production site or sold.

[0029] The power selling device 13 is a power selling meter or the like, which measures the amount of power generated by the power generation device 11 and transmits it to the power company 14. Any known power selling device such as a power selling meter may be used as this power selling device 13. The power transmitted from the power selling device 13 to the electric power company is a part or all of the power generated by the power generation device 11. When only a part of the power is transmitted, the remaining power is consumed in-house at the oil refining site.

[0030] FIG. 2 is a block diagram showing the base control device.

[0031] The base control device 15 is an information processing device that controls and monitors the oil refining equipment 9 and the power generation equipment 11 in the oil refining base. The information processing device means a computer equipped with a processor such as a CPU (Central Processing Unit), memory devices such as a RAM (Random Access Memory), a ROM (Read Only Memory), a HDD (Hard Disk Drive), and a SSD (Solid State Drive), and a communication interface (hereinafter the same). In other words, the base control device 15 is configured with a processor 14, a memory device 16, and a communication interface 18.

[0032] The communication interface refers to a communication device that enables transmission and reception of information between other information processing devices and devices via a network such as a LAN (Local Area Network), Bluetooth (registered trademark), the Internet, or a telephone line network.

[0033] This base control device 15 is connected to the oil production device 9, the power generation device 11, and the electricity selling device 13 so as to be able to communicate with each other via a LAN (Local Area Network), Bluetooth (registered trademark), etc. In addition, the base control device 15 is connected to the management system 5 so as to be able to communicate with each other via a network 17 such as the Internet or a telephone line network.

[0034] The site control device 15 is provided with a control monitor unit 19 and an information transmission unit 21 by executing a program in the memory device 16 with the processor 14 .

[0035] The control and monitoring unit 19 realizes a control and monitoring function, controls the oil production device 9 and the power generation device 11, and monitors their operating conditions. In this way, the base control device 15 causes the oil production device 9 and the power generation device 11 to perform appropriate oil production and power generation, respectively. Note that the base control device 15 of this embodiment also monitors the electricity selling device 13.

[0036] The base control device 15 may be configured with separate information processing devices that perform a control function for controlling the oil-producing apparatus 9 and the power generation apparatus 11 and a monitoring function for monitoring the oil-producing apparatus 9 and the power generation apparatus 11. The base control device 15 may also be configured with information processing devices provided for the oil-producing apparatus 9 and the power generation apparatus 11, respectively. In this case, it is also possible to configure the information processing devices integrally with the oil-producing apparatus 9 and the power generation apparatus 11.

[0037] The control monitoring unit 19 of this embodiment monitors the oil production system 9, the power generation system 11, and the power selling system 13 to obtain the amount of oil produced (amount produced), the amount of oil produced fed to the power generation system 11, the amount of electricity generated by the power generation system 11 (amount of electricity generated), and the amount of electricity sold (amount of electricity sold). The base control device 15 also obtains the amount of waste plastic input to the oil production system 9. This information is obtained by obtaining measurements made by the oil production system 9, or by obtaining information measured in advance by a measuring device.

[0038] The information transmitting unit 21 realizes an information transmitting function, and transmits the acquired input amount, production amount, and refueling amount as input information (oil trading information), production information (oil trading information), and refueling information (oil trading information), and the power generation amount and power sales amount as power generation information (electricity trading information) and power sales information (electricity trading information), respectively, to the management system 5. Note that by transmitting the input information to the management system 5 as well, it is possible to associate the conversion of waste plastic into oil with the produced oil and the generated electricity.

[0039] The timing of transmission can be, for example, when a predetermined period of time such as a predetermined cycle (one or multiple cycles), a predetermined time (one or several hours), or a predetermined number of days (one or several days, etc.) has elapsed. One cycle is one or a predetermined number of oiling, refueling, power generation, electricity sale, etc. Note that one oiling is the oiling of a predetermined amount of waste plastic, one refueling is refueling up to a predetermined amount, one power generation is power generation for the predetermined amount of refueling, and one electricity sale is electricity sale up to a predetermined amount, etc.

[0040] The production amount can be obtained by a signal from a sensor such as a flow meter or a weight meter provided in the oil production device 9. The fuel supply amount can be obtained by a signal from a sensor provided in the fuel tank of the power generation device 11. The power generation amount can be obtained from a measuring device such as a so-called smart meter. The amount of electricity sold can be obtained by the amount measured by the electricity selling device 13.

[0041] [Management system] The management system 5 of this embodiment is configured by connecting a management device 23, which serves as a token management device and an oil management device, and a plurality of nodes 25 through a P2P management network, as shown in Fig. 1. The token management device and the oil management device may be provided separately. Also, although only two nodes 25 are shown for ease of understanding, there is no limit to the number.

[0042] FIG. 3 is a block diagram showing a management device of the management system.

[0043] The management device 23 is an information processing device, and is connected to the oil production device 9, the power generation device 11, and the electricity selling device 13 via a network 17 so as to be able to communicate with each other. As a token management device, this management device 23 issues and manages environmental value tokens according to the amount of oil produced in the oil production device 9. As an oil management device, the management device 23 of this embodiment also manages the produced oil.

[0044] The environmental value token objectively indicates the environmental value of disposing of waste plastic (producing oil from waste plastic), and can be, for example, points that indicate environmental value numerically, or it can have financial value such as electronic money or cryptocurrency. In this embodiment, an example will be described in which the environmental value token is points. Note that even if the environmental value token is points, it can be an index showing the degree of contribution to the environment, and therefore can contribute to the establishment of environmental value trading such as carbon dioxide emission trading. Furthermore, the environmental value token, which is the point in this embodiment, can be traded for oil or electricity, which is energy, by burning, as described below.

[0045] The management device 23 is provided with a management function unit 33 and a node function unit 35 by executing a program in the memory device 29 with a processor 31. The management function unit 33 and the node function unit 35 can be configured as separate information processing devices, such as a server and a node, or as separate processors.

[0046] The management function unit 33 realizes the management function and manages the oil and tokens. The management of electricity may be performed by the electric power company 14, but may also be performed by the management function unit 33. Similarly to electricity, the management of oil may also be performed separately. The management function unit 33 includes a transaction information acquisition unit 37, a transaction management unit 39, and a token management unit 41. Each unit of the management function unit 33 may be configured by a dedicated processor.

[0047] The transaction information acquisition unit 37 realizes a transaction information acquisition function and acquires transaction information related to oil produced at an oil refining site. The transaction information acquisition unit 37 stores the acquired information in the memory area 29a (management function memory area 29a) for the management function unit 33 in the memory device 29 and passes the acquired information to the node function unit 35.

[0048] The oil transaction information includes oil transaction information and electricity transaction information. The oil transaction information includes input information, production information, refueling information, sales information, etc. Input information includes the input date and location (oilification base or oilification equipment 9) and input amount of waste plastic. Production information includes the production date and time, location (oilification base or oilification equipment 9) and production amount of oil. Refueling information includes the refueling date and time, location (oilification base or power generation equipment 11) and amount of oil refueled. These are acquired by receiving information sent from the oilification base by the management device 23. Oil sales information includes the sales date and time, purchase destination, sales amount (transaction amount), etc. These are acquired when the sale of oil is concluded in the transaction management unit 39 described later.

[0049] Electricity trading information includes power generation information, power sale information, sales information, etc. Power generation information includes the power generation date and time, location (oil refining base or power generation device 11), and amount of power generated. Power sale information includes the power sale date and time, location (oil refining base or power generation device 11), and amount of power sold. These are acquired by having management device 23 receive information sent from the oil refining base. Electricity sales information includes the sales date and time, purchase destination, and sales amount (trading amount). This electricity sales information is acquired by having management device 23 receive information sent from the power company 14.

[0050] The transaction management unit 39 realizes a transaction management function, and performs transaction management of oil produced at the oil refining base and transaction management of electricity. In this embodiment, based on the transaction information acquired by the transaction information acquisition unit 37, information on the self-consumption and sale of oil and information on the self-consumption and sale of electricity are managed.

[0051] Oil self-consumption information, which is information related to the self-consumption of managed oil, is the location (oil refining base) and amount (self-consumption amount) of the self-consumption of oil, and sales information is information indicating the sale of oil and the establishment of a sale.On the other hand, electricity self-consumption information, which is information related to the self-consumption of electricity, is the location (oil refining base) and amount (self-consumption amount) of the self-consumption of electricity, and sales information is information indicating the sale of electricity and the establishment of a sale.

[0052] The self-consumption amount of oil is obtained by subtracting the amount of fuel supplied from the amount of oil produced, and then subtracting the amount of oil sold. If oil is not sold, the self-consumption amount can be obtained by subtracting the amount of fuel supplied from the amount produced. If there is no fuel supply or sales, the amount produced becomes the self-consumption amount. The self-consumption amount of electricity is obtained by subtracting the amount of electricity sold from the amount of electricity generated. If electricity is not sold, the amount of electricity generated becomes the self-consumption amount.

[0053] The sales volume of oil at the base may be the desired amount of oil produced at the oil refining base that is pooled for sale. The oil pooling process may be performed by the base control device 15 at the oil refining base. For example, the amount of oil to be pooled may be specified by the base control device 15. This pool amount is transmitted from the base control device 15 to the management system 5 as pool information (oil trading information). The pooled oil is stored at the oil refining base.

[0054] The sale of oil is made based on purchase information received from the user terminal 7, which will be described later. The sale of oil is made when the total amount of pooled oil is greater than the purchase amount in the purchase information and settlement is made. The sale of electricity is made between the power company 14 and the user.

[0055] When oil is sold, the transaction management unit 39 subtracts the purchase amount from the total amount of pooled oil based on the purchaser (seller) and purchase amount (sales amount) included in the purchase information, and issues an instruction to the purchaser to send the oil from the nearest oil refining base. This instruction can be sent from the transaction management unit 39 to the base control device 15 of the oil refining base by dialogue message, e-mail, facsimile, etc.

[0056] In addition, the purchase information includes the purchase source, purchase amount, payment method (including the number of environmental tokens to be cancelled), user identification information (user ID), etc.

[0057] The oil management information, such as the in-house consumption amount of oil and the pool amount, is stored in the management function storage area 29 a in the memory device 29 and is also passed to the node function unit 35 .

[0058] The token management unit 41 realizes a token management function, and issues and manages environmental value tokens according to the amount of oil produced by the oilification of waste plastics at an oilification base. This token management unit 41 includes a token issuing unit 43, an ownership generating unit 45, a token erasing unit 47, and a token transferring unit 49.

[0059] The token issuing unit 43 realizes a token issuing function and issues an environmental value token. That is, when the information acquired by the transaction information acquiring unit 37 is oil production information, the token issuing unit 43 issues an ownerless environmental value token according to the production amount of oil included in the production information.

[0060] Environmental value tokens are issued at a predetermined ratio to the amount of oil. For example, 1 point of environmental value tokens is issued for every 200 liters of oil.

[0061] Information on the issued environmental value token (token information) is stored in the management function storage area 29a by the token issuing unit 43 and is also passed to the node function unit .

[0062] The ownership right generating unit 45 realizes an ownership right generating function, and generates ownership rights of environmental value tokens according to the amount of oil or energy consumed to the final consumer of the oil or electricity generated from the oil according to the transaction information acquired by the transaction information acquiring unit 37. The amount of consumption is the amount of self-consumption or the amount of sales.

[0063] The final consumer is the person who ultimately consumes oil or electricity, which is an energy source. When the producer of oil or the generator of electricity consumes it for themselves, the producer or generator becomes the final consumer. In addition, the purchaser of oil or electricity becomes the final consumer.

[0064] However, in the case of oil transactions, the purchaser may divide the oil into smaller portions and sell it further as fuel for lamps, stoves, etc. In such cases, since it may not be possible to identify the final consumer who purchased the fuel, it is best to consider the purchaser of the oil who sells the fuel as the final consumer. However, if the purchaser of the fuel can be identified, the purchaser of the fuel may also be considered as the final consumer.

[0065] The end user need only be a purchaser of the oil or electricity derived from the oilification of waste plastics, and does not need to be associated with the oil produced.

[0066] Ownership of the environmental value token is generated when the end consumer is identified based on transaction information. That is, in this embodiment, this is when the end consumer purchases oil or electricity. The ownership generation unit 45 acquires the sales volume, which is the trading volume of oil or electricity, as transaction information related to oil, and generates ownership of the environmental value token to the purchaser according to the sales volume. The purchaser in this embodiment is the user of the user terminal 7, which will be described later.

[0067] Information on the ownership of the generated environmental value token (ownership information) is the number of tokens owned and the user ID of the user who is the final consumer. This ownership information is stored in the management function storage area 29a in the memory device 29 and is also passed to the node function unit 35.

[0068] The token erasure unit 47 realizes a token erasure function and erases the environmental value token. That is, since the environmental value token of this embodiment can purchase oil or electricity by erasing it, when oil or electricity is purchased with the environmental value token, the token erasure unit 47 erases the environmental value token for that amount.

[0069] The environmental value tokens are cancelled based on the environmental value token cancellation information received from the user terminal 7, which will be described later. The cancellation information in this embodiment is added to the purchase information, and is the number of environmental value tokens to be cancelled and the corresponding purchased amount of oil or electricity. Note that the cancellation information can also be transmitted separately from the purchase information from the user terminal 7, which will be described later.

[0070] The token erasure unit 47 of this embodiment erases the environmental value token by subtracting the number of tokens to be erased from the number of tokens owned associated with the user ID in the purchase information. Information on the environmental value token after the erasure (post-erasure information) is stored in the management function storage area 29a together with the purchase information and is passed to the node function unit 35.

[0071] The token transfer unit 49 realizes a token transfer function and transfers the environmental value token. As described above, the environmental value token can be used to purchase oil or electricity, and can also be a target for environmental value trading, so there is a practical benefit to transferring it. In this embodiment, when a user wishes to transfer, the token transfer unit 49 transfers the ownership of the environmental value token.

[0072] The transfer of environmental value tokens is performed based on environmental value token transfer information received from the user terminal 7, which will be described later. The transfer information includes the number of environmental value tokens to be transferred, the user IDs of the transfer source and transfer destination, and the consideration for the transfer. The consideration is optional. The token transfer unit 49 executes the transfer by subtracting the transfer number from the ownership number associated with the transfer source user ID of this transfer information and adding the transfer number to the ownership number associated with the transfer destination user ID.

[0073] This information on the environmental value token after transfer (post-transfer information) is stored in the management function storage area 29a together with the transfer information, and is also passed to the node function unit 35.

[0074] The node function unit 35 includes an information storage unit 51, a block generation unit 53, a chain creation unit 55, and a broadcast unit 57.

[0075] The information storage unit 51 realizes an information storage function, and stores information received from the management function unit 33 in a storage area 29b (node ​​function storage area 29b) for the node function unit 35 in the memory device 29. In this embodiment, the information stored is transaction information related to oil and information on the environmental value token. The transaction information related to oil is as described above, and the information on the environmental value token includes token information, ownership information, cancellation information (purchase information), post-cancellation information, transfer information, and post-transfer information.

[0076] The block generation unit 53 realizes a block generation function, and blocks the oil-related transaction information and environmental value token information in the node function storage area 29b at a predetermined timing. The block generation unit 53 may block the oil-related transaction information and environmental value token information in the management function storage area 29a. In this case, the information storage unit 51 of the node function unit 35 becomes unnecessary, which speeds up processing and reduces storage capacity. Alternatively, it is possible to omit the management function storage area 29a. In this case, too, it speeds up processing and reduces storage capacity.

[0077] The block generation may be performed using a general block chain technology. That is, the block generation unit 53 generates block data in a form in which the hash value of the previous block, the nonce, transaction information, etc. are stored in one block.

[0078] The chain creation unit 55 realizes a chain creation function and generates blockchain data with a data structure in which the block data generated by the block generation unit 53 are linked in time series. The generated blockchain is stored in the node function storage area 29b.

[0079] The broadcast unit 57 realizes a broadcast function and broadcasts the generated blockchain to multiple nodes 25 for storage.

[0080] The multiple nodes 25 are information processing devices, and store and hold the broadcasted blockchain in a memory device 29. As a result, the blockchain is shared by the token management device 23 and the multiple nodes 25 to form a tamper-proof distributed ledger.

[0081] In this embodiment, the blockchain is formed only by the management device 23, and the node 25 simply shares the blockchain. However, the configuration may be such that the blockchain is formed by either the management device 23 or the node 25, and the other formed blockchain is shared.

[0082] [User device] FIG. 4 is a block diagram illustrating a user terminal.

[0083] The user terminal 7 enables the purchase of oil and electricity, and also enables the disposal of environmental value tokens owned by the user. Disposal in this embodiment means transfer, but can also include abandonment. Although only one user terminal 7 is shown in FIG. 1, there are as many as there are users. A user in this embodiment refers to a person who can purchase oil or electricity and become an end consumer.

[0084] The user terminal 7 may be a multi-function mobile phone, a tablet terminal, a personal computer, or other information processing device. The user terminal 7 includes a processor 59, a memory device 61, a communication interface 63, and a user interface 65.

[0085] The user interface (UI) 65 can be composed of an input / output device such as a touch panel display, as well as an output device such as a display and an input device such as a mouse pad or keyboard.

[0086] The user terminal 7 is provided with a purchasing unit 67 and a token trading unit 69 by executing a program in the memory device 61.

[0087] The purchasing unit 67 realizes a purchasing function, and displays a purchasing screen on the UI 65 of the user terminal 7, making it possible to purchase oil or electricity. When purchasing, the category of oil or electricity, the purchase amount, and the payment method are specified on the UI 65. As a payment method, in addition to general payment by currency or the like, environmental value tokens can be selected. When environmental value tokens are selected, the number of environmental value tokens to be cancelled is selected, and the oil or electricity corresponding to this number is purchased, or the excess amount is also purchased by paying with currency or the like. This purchase information is transmitted to the management system 5, including the user ID of the user of the user terminal 7.

[0088] The token trading unit 69 realizes a token trading function and transfers environmental value tokens for a fee or free of charge. Token trading is performed by specifying the number of environmental value tokens to be transferred, the user ID of the transfer destination, and the consideration for the transfer on the UI 65. This transfer information is transmitted to the management system 5, including the user ID of the user of the user terminal 7. Furthermore, the token trading unit 69 may make it possible to check the number of environmental value tokens owned and the market price on the UI 65.

[0089] [Oil treatment] 5 is a flow chart showing the oil refining process by the environmental value imparting system of this embodiment. The flow chart of FIG.

[0090] In step S1, it is monitored whether or not the oilification has started at the oilification base. For example, the control monitor unit 19 of the base control device 15 may monitor whether or not the oilification start button of the oilification device 9 or the base control device 15 is operated. The process of step S1 is repeated unless the oilification has started at the oilification device 9.

[0091] In step S2, it is monitored whether or not the oiling at the oiling base has been completed. In this monitoring, for example, the presence or absence of oil produced by the oiling device 9 and the end of the oiling control at the base control device 15 may be monitored. The presence or absence of oil produced can be determined by signals from sensors such as a flow meter and a weight meter. In addition, it is also possible to monitor whether or not the oiling end button in the oiling device 9 or the base control device 15 has been operated. The processing of step S2 is repeated as long as the oiling at the oiling device 9 has not been completed.

[0092] In step S3, the amount of oil produced at the oil refining site is notified to the management system 5. That is, the information transmission unit 21 of the site control device 15 transmits production information including the amount produced at the oil refining site to the management system 5. This transmission is performed at the end of a predetermined oil refining cycle, when a predetermined time has elapsed, or when the operation of the oil refining device 9 is terminated. The amount of oil produced may be obtained from a signal from a sensor provided in the oil refining device 9 as described above.

[0093] In step S4, it is monitored whether the produced oil has been supplied to the power generation device 11. This monitoring is performed at the same time as the oil production, and it is determined whether or not oil has been supplied between the start of the next specified cycle, the start of the next specified time, and the start of the next operation of the oil production device 9. The "concurrent time" refers to a timing related to the acquisition of the amount of oil produced, for example, at the same time as the acquisition of the amount of oil produced or between the start of the next acquisition of the amount of oil produced.

[0094] The determination of whether refueling has occurred can be made based on whether the control monitoring unit 19 of the base control device 15 has received a signal from a sensor provided in the fuel tank of the power generation device 11. If refueling has occurred, the process proceeds to step S5, and if refueling has not occurred, the process proceeds to step S7.

[0095] In step S5, the amount of fuel produced by the oil supplied to the power generation device 11 is notified to the management system 5. That is, the information transmission unit 21 of the base control device 15 transmits fuel supply information including the amount of fuel supplied to the power generation device 11 to the management system 5. The amount of fuel supply may be acquired by a signal from the fuel tank of the power generation device 11.

[0096] In step S6, the control and monitoring unit 19 of the base control device judges whether the amount of oil produced at the oil refining base matches the amount of oil supplied to the power generation device 11. If the amount of oil produced matches the amount of oil supplied, it is judged that there is no oil pool or self-consumption, and the oil refining process ends. On the other hand, if the amount of oil produced does not match the amount of oil supplied, the process proceeds to step S7.

[0097] In step S7, it is determined whether or not there is an oil pool at the oil refining site. That is, the control monitor unit 19 of the site control device 15 determines whether or not the amount of oil pool has been input. This determination is also made at the same time as the amount of production is obtained, and the input of the amount of pool is monitored.

[0098] If there is an oil pool, the process proceeds to step S8, and if there is no oil pool, the oilification process ends. If there is no oil pool, the amount of oil self-consumption may be calculated from the amount of oil produced and the amount of oil supplied, and this amount of oil self-consumption may be transmitted to the management system 5 as oil self-consumption information.

[0099] In step S8, the amount of oil pooled at the oil refining site is notified to the management system 5, and the oil refining process is completed. This notification is performed by the information transmission unit 21 of the site control device 15 transmitting pool information including the amount of oil pooled to the management system 5.

[0100] At this time, the base control device 15 may determine the in-house consumption amount of oil. In this case, it is determined whether the difference between the production amount and the fuel supply amount (if the process has moved from step 4, the fuel supply amount is set to zero) matches the pool amount.

[0101] If the difference between the amount of oil produced and the amount of oil supplied matches the pool amount, it is determined that there is no oil self-consumption, and if they do not match, the difference between the amount of oil produced and the amount of oil supplied and the pool amount is determined to be the amount of oil self-consumption. This amount of oil self-consumption may also be transmitted to the management system 5 together with the amount of oil pooled as oil self-consumption information, or alone.

[0102] [Power generation processing] 6 is a flow chart showing the power generation process by the environmental value imparting system of this embodiment. The flow chart of FIG.

[0103] In step S101, it is monitored whether or not power generation has started at the oil refining site. In this monitoring, the control monitoring unit 19 of the site control device 15 may monitor whether or not a power generation start button has been operated on the power generation device 11 or the site control device 15. Alternatively, in cases where refueling is used as a trigger to automatically generate power at the power generation device 11, refueling may be monitored. The processing of step S101 is repeated unless power generation at the power generation device 11 has started.

[0104] In step S102, it is monitored whether or not power generation has ended. In this monitoring, the control monitoring unit 19 of the base control device 15 may monitor the presence or absence of a power value in a measuring device such as a smart meter and the end of power generation control in the base control device 15. Alternatively, it may monitor whether or not a power generation end button has been operated in the power generation device 11 or the base control device 15. The processing of step S102 is repeated as long as power generation in the power generation device 11 has not ended.

[0105] In step S103, the amount of power generated at the oil refining base is notified to the management system 5. That is, the information transmission unit 21 of the base control device 15 transmits power generation information including the amount of power generated to the management system 5. This transmission is performed when a predetermined cycle of power generation ends, when a predetermined time has elapsed, or when the operation of the power generation device 11 ends. The amount of power generated can be obtained from the measurement device as described above.

[0106] In step S104, it is determined whether or not power is sold at the oil refining site. The determination of whether or not power is sold is made by the control monitoring unit 19 of the site control device 15 based on the amount of power sold measured by the power selling device 13. This determination can be made at the same time as power generation. The "same time" here refers to a timing related to the acquisition of the amount of power generation, for example, the start of the next specified cycle, the start of the next specified time, or the start of the next operation of the power generation device 11. If power is sold, the process proceeds to step S105, and if power is not sold, the power generation process ends.

[0107] In step S105, the amount of power sold is notified to the management system 5, and the power generation process ends. This notification is performed by the information transmitting unit 21 of the site control device 15 transmitting power selling information including the amount of power sold to the management system 5.

[0108] At this time, the base control device 15 may determine the amount of self-consumption of electric power. The amount of self-consumption of electric power may be calculated from the difference between the amount of generated electric power and the amount of electric power sold, and may be transmitted to the management system 5 as self-consumption information of electric power together with the amount of electric power sold, or alone.

[0109] [Token issuing process] 7 is a flowchart showing the token issuing process of this embodiment, which is executed by the management function unit 33 of the management device 23 of the management system 5.

[0110] In step S201, the amount of oil produced from waste plastic at the oil refining site is acquired. That is, when the transaction information acquisition unit 37 of the management function unit 33 receives the production information transmitted from the oil refining site, the transaction management unit 39 of the management function unit 33 acquires the amount of oil produced based on the received production information.

[0111] In step S202, environmental value tokens are issued. That is, the token issuing unit 43 of the management function unit 33 issues non-proprietary environmental value tokens at a predetermined rate by referring to a table or the like according to the obtained production amount of oil.

[0112] In step S203, the issued environmental value token is stored. That is, the token issuing unit 43 of the management device 23 stores token information of the issued environmental value token in the management function storage area 29a and passes it to the node function unit 35. The node function unit 35 performs a storage process, which will be described later. Once stored in this manner, the environmental value token is placed under the management of the token management unit 41, and the token issuing process ends.

[0113] [Token ownership generation process] (When using oil for home consumption) Fig. 8 is a flowchart showing a token ownership generation process when oil is consumed at home in this embodiment. The flowchart in Fig. 8 is executed in parallel with the token issuance process by the management function unit 33 of the management device 23 acquiring the amount of oil produced.

[0114] In step S301, it is determined whether or not refueling information for the generated oil has been acquired from the oil refining base. The refueling information here is refueling information related to the generated information that triggered the flowchart in Figure 8. If the transaction information acquisition unit 37 of the management function unit 33 has acquired the refueling information by reception, the process proceeds to step S302, and if not, the process proceeds to step S305. Not acquiring refueling information means not acquiring refueling information transmitted at the same time as the generated information. The same time period is as described above.

[0115] In step S302, it is determined whether or not pool information on the produced oil has been acquired from the oil refining site. The pool information here is pool information related to the production information that triggered the flow chart of FIG.

[0116] If the transaction information acquisition unit 37 of the management function unit 33 acquires the pool information by reception, the process proceeds to step S303, and if not, the process proceeds to step S307. Not acquiring the pool information means not acquiring the pool information transmitted at the same time as the generation information. The same time is as described above.

[0117] In step S303, in response to receiving the production information, fuel supply information, and pool information of the oil produced from the oil refining base, the transaction management unit 39 of the management function unit 33 judges whether the produced oil has been self-consumed. In this judgment, the transaction management unit 39 calculates the self-consumption amount from the production amount, fuel supply amount, and pool amount of the obtained information.

[0118] If the produced oil is consumed by the home, the process proceeds to step S304; if not, the token ownership generation process ends.

[0119] In step S304, ownership of the environmental value token is generated for the user of the oil refining base that produced the oil. That is, the ownership generation unit 45 of the management function unit 33 generates ownership of the environmental value token by referring to a table or the like according to the home consumption amount of oil found in the transaction management 39. Ownership information regarding this ownership is stored in the management function storage area 29a and is also passed to the node function unit 35.

[0120] On the other hand, in step S305, similarly to step S302, it is determined whether or not pool information has been received. If pool information has been acquired, the process proceeds to step S306, and if not, the process proceeds to step S307.

[0121] In step S306, in response to receiving the oil production information and pool information, the transaction management unit 39 of the management function unit 33 calculates the amount of self-consumption from the production amount and pool amount of the acquired information, and determines whether the produced oil has been self-consumed.

[0122] If the produced oil is consumed by the user, the process proceeds to step S304, where ownership is granted in the same manner as described above. If not, the token ownership generation process ends.

[0123] In step S307, in response to receiving the oil production information, the transaction management unit 39 of the management function unit 33 determines that all the produced oil has been self-consumed, and sets the production amount of the obtained information as the self-consumption amount. As a result, the process proceeds to step S304, and ownership is granted in the same manner as above.

[0124] In step S308, in response to the transaction information acquisition unit 37 of the management device 23 receiving the oil production information and refueling information, the transaction management unit 39 of the management device 23 calculates the amount of self-consumption from the production amount and refueling amount in the acquired information, and determines whether the produced oil has been self-consumed.

[0125] If the produced oil is consumed by the user, the process proceeds to step S304, where ownership is granted in the same manner as described above. If not, the token ownership generation process ends.

[0126] (When buying and selling oil) 9 is a flowchart showing a token ownership right generation process when buying and selling oil in this embodiment. The flowchart in FIG. 9 is executed by the management function unit 33 of the management device 23.

[0127] In step S401, purchase information of oil produced at an oil refining site is acquired. That is, the transaction information acquisition unit 37 of the management device 23 acquires the oil purchase information transmitted from the user terminal 7 by receiving it.

[0128] In step S402, it is determined whether the sale of oil has been completed. That is, the transaction management unit 39 of the management function unit 33 determines that the sale has been completed when the purchase amount of the oil purchase information is greater than the total amount of pooled oil and payment has been made. If the sale has been completed, the process proceeds to step S403, and if the transaction has not been completed, the token ownership generation process ends.

[0129] In step S403, it is determined whether or not the environmental value token was used for payment when the oil was sold. That is, the transaction management unit 39 of the management function unit 33 determines whether or not environmental value token cancellation information was included in the oil purchase information. If cancellation information is not included, it is determined that the environmental value token was not used for payment, and the process moves to step S404. On the other hand, if cancellation information is included, it is determined that the environmental value token was used for payment, ownership of the environmental value token is not generated, and the token ownership generation process ends.

[0130] In step S404, ownership of the environmental value token is generated for the user of the user terminal 7 who purchased the oil. That is, the ownership generating unit 45 of the management function unit 33 generates ownership of the environmental value token by referencing a table or the like in accordance with the amount of oil sold in the transaction management 39. Ownership information regarding this ownership is stored in the management function storage area 29a and is also passed to the node function unit 35. Note that for the portion paid for using a payment method other than the environmental value token, environmental value tokens may be generated in step S404.

[0131] (When electricity is consumed in-house) 10 is a flowchart showing a token ownership right generation process at the time of self-consumption of power in this embodiment. The flowchart in FIG.

[0132] In step S501, information on power generation using oil produced at an oil refining site is acquired. That is, the transaction information acquisition unit 37 of the management device 23 receives and acquires the power generation information transmitted from the oil refining site.

[0133] In step S502, it is determined whether or not electricity sales information has been received from the oil refining site. That is, the transaction information acquisition unit 37 of the management function unit 33 determines whether or not electricity sales information related to the power generation information has been acquired by reception. If electricity sales information has been acquired, the process proceeds to step S503, and if not, the process proceeds to step S504. Not acquiring electricity sales information means not acquiring electricity sales information transmitted at the same time as the power generation information. The same time period is as described above.

[0134] In step S503, in response to receiving the power generation information and power sale information from the oil refining site, the transaction management unit 39 of the management function unit 33 determines whether the generated power has been self-consumed. That is, the transaction management unit 39 of the management function unit 33 calculates the self-consumption amount from the power generation amount and power sale amount in the acquired information.

[0135] If the generated electricity is self-consumed, the process proceeds to step S504; if not, the token ownership generation process ends.

[0136] In step S504, ownership of the environmental value token is generated for the user of the oil refining base where the power generation was performed. That is, the ownership generating unit 45 of the management function unit 33 generates ownership of the environmental value token by referring to a table or the like according to the amount of self-consumption of electricity obtained by the transaction management 39. Ownership information regarding this ownership is stored in the management function storage area 29a and is also passed to the node function unit 35.

[0137] (When buying and selling electricity) 11 is a flowchart showing a token ownership right generation process when buying and selling electricity in this embodiment. The flowchart in FIG.

[0138] In step S601, sales information of electricity is acquired from the electric power company. That is, the transaction information acquisition unit 37 of the management function unit 33 acquires the sales information of electricity transmitted from the electric power company 14 by receiving it.

[0139] In step S602, it is determined whether or not the environmental value token was used for payment. That is, the transaction management unit 39 of the management device 23 determines whether or not the sales information included information on the cancellation of the environmental value token. If the cancellation information is not included, it is determined that the environmental value token was not used for payment, and the process proceeds to step S603. On the other hand, if the cancellation information is included, it is determined that the environmental value token was used for payment, no ownership of the environmental value token is generated, and the token ownership generation process ends.

[0140] In step S603, ownership of the environmental value token is generated for the user of the user terminal 7 who purchased the electricity. That is, the ownership generating unit 45 of the management function unit 33 generates ownership of the environmental value token by referring to a table or the like according to the amount of electricity sold. Ownership information regarding this ownership is stored in the management function storage area 29a and is also passed to the node function unit 35. Note that for the portion paid for using a payment method other than the environmental value token, environmental value tokens may be generated in step S603.

[0141] [Conservation processing] 12 is a flowchart showing the information storage process of this embodiment. The process of the flowchart in FIG.

[0142] In step S701, information is acquired. The information acquired here is information that information storage unit 51 of node function unit 35 acquires from management function unit 33 and that information storage unit 51 of node function unit 35 receives from management function unit 33. Information storage unit 51 stores the received information in node function storage area 29b. Note that step S701 is performed every time node function unit 35 receives information from management function unit 33.

[0143] In step S702, information is blocked. That is, block generation unit 53 of node function unit 35 aggregates the information stored in node function storage area 29b at a predetermined timing and blocks it.

[0144] In step S703, a block chain is created. That is, the chain creation unit 55 of the node function unit 35 generates block chain data by linking blocked data in a chronological order.

[0145] In step S704, the broadcast unit 57 of the node function unit 35 broadcasts the blockchain to the multiple nodes 25 to store it, and also stores it in its own node function storage area. As a result, the blockchain is shared by the token management device 23 and the multiple nodes 25.

[0146] [Effects of Example 1] As described above, the environmental value imparting system 1 of this embodiment comprises an oil production device 9 that decomposes waste plastic to produce oil, and a management device 23 which is a token management device that issues and manages environmental value tokens according to the amount of oil produced, and the management device 23 acquires transaction information regarding the produced oil, and generates ownership rights of environmental value tokens to end consumers of the oil and electricity, which is the energy generated from the oil, according to the acquired transaction information, according to the amount of oil or electricity consumed.

[0147] Therefore, whether the end consumer is a person who consumes the oil produced by the oilification of waste plastics or a person who consumes the electricity generated from the oil, the ownership of the environmental value token based on the oilification can be reliably given. As a result, the environmental value based on the oilification of waste plastics can be objectively evaluated and awarded.

[0148] Furthermore, the environmental value granting system 1 of this embodiment is equipped with a user terminal 7 of an end consumer that enables trading of oil or electricity, and the management device 23 acquires the sales volume, which is the trading volume of oil or electricity at the user terminal 7, as trading information related to oil, and generates ownership of environmental value tokens for the end consumer of the user terminal 7 according to the sales volume.

[0149] Therefore, ownership of the environmental value tokens can be reliably given to end consumers who purchase oil or electricity.

[0150] An oil production apparatus 9 is provided at each of a plurality of oil production bases, and the environmental value imparting system 1 includes a management device 23 as an oil management device that manages to send oil to an oil trading partner from the nearest oil production base.

[0151] Therefore, in this embodiment, a global oil sales network can be easily constructed.

[0152] The environmental value imparting system 1 is provided at an oil-producing base where the oil-producing device 9 is provided, and is equipped with a power generation device 11 that consumes the produced oil to generate electricity.

[0153] Therefore, in this embodiment, the process from oilification of waste plastics to generation can be carried out at each oil refining facility, and by appropriately selecting whether to obtain oil or electricity, resources can be utilized effectively.

[0154] The management device 23 as a token management device in this embodiment includes a transaction information acquisition unit 37 that acquires transaction information regarding the produced oil, and an ownership rights generation unit 45 that generates ownership rights of environmental value tokens to end consumers of oil or electricity according to the acquired transaction information in accordance with the amount of oil or electricity consumed.

[0155] Therefore, the management device 23 can easily objectively evaluate and assign an environmental value based on the conversion of waste plastics into oil.

[0156] The token management program enables the computer to realize a transaction information acquisition function that acquires transaction information regarding the produced oil, and an ownership rights generation function that generates ownership rights for environmental value tokens to end consumers of oil or electricity according to the acquired transaction information in accordance with the amount of oil or electricity consumed.

[0157] Therefore, the token management program can easily use a general-purpose computer to objectively evaluate and assign environmental value based on the conversion of waste plastic into oil.

[0158] In the environmental value granting method of this embodiment, the oilification device 9 decomposes waste plastic to produce oil, and the management device 23, which is a token management device, issues environmental value tokens in accordance with the amount of oil produced, obtains transaction information regarding the produced oil, and generates environmental value tokens to final consumers of oil or electricity in accordance with the obtained transaction information in accordance with the amount of oil or electricity consumed.

[0159] Therefore, the environmental value assigning method uses the oil-producing apparatus 9 and the management apparatus 23, and can objectively evaluate and assign an environmental value based on the oil-producing of waste plastics.

[0160] [Variations] In the first embodiment, the management device 23 directly uses the oil-related transaction information acquired to generate environmental value tokens and to grant ownership rights, but the generation of environmental value tokens and the granting of ownership rights may also be performed using a blockchain.

[0161] That is, in this modified example, when the node function unit 35 creates and broadcasts a blockchain, it also passes the blockchain to the management function unit 33.

[0162] When the management function unit 33 receives the blockchain, it issues environmental value tokens and creates ownership rights based on the oil-related transaction information in the blockchain. It also transfers and cancels environmental value tokens based on the information about the environmental value tokens in the blockchain. Information resulting from these processes on the blockchain is passed from the management function unit 33 to the node function unit 35. Note that blocks for which blockchain processing has been completed are stored in the management function storage area 29a.

[0163] In this manner, in this embodiment, processing based on oil-related transaction information and information related to environmental value tokens can be performed at the time the block chain is created, thereby simplifying the processing.

[0164] In this modified example, the management function unit 33 can handle both cases where the management function unit 33 stores information in the management function storage area 29a and where the management function unit 33 does not store information (blocks for which processing has been completed are stored). When the management function unit 33 does not store information, it is possible to suppress pressure on the storage capacity.

[0165] In this way, the environmental value granting system 1 of this modified example blocks oil-related transaction information and environmental value token information, and is equipped with a management device 23 as a node that forms a blockchain using these blocks, and the management device 23 as a token management device generates ownership rights of environmental value tokens for end consumers based on the blockchain.

[0166] Therefore, in this modification, the processing can be simplified and the storage capacity can be prevented from being overloaded. In addition, this modification can also achieve the same effects as the first embodiment. [Explanation of symbols]

[0167] 1. Environmental Value Assignment System 7 User terminals 9 Oil conversion equipment 11 Power generation equipment 23 Management devices (token management devices, oil management devices, nodes) 25 nodes 37 Transaction Information Acquisition Department 45 Ownership

Claims

1. Equipment to decompose and dispose of waste plastic at the site; A base control device that is communicatively connected to an apparatus for disposing of the waste plastic at the base and acquires the amount of the waste plastic disposed of from the apparatus for disposing of the waste plastic; A token management device is provided which is communicably connected to the base control device, acquires the amount of waste plastic disposed from the base control device, and issues and manages environmental value tokens without an owner at a predetermined ratio to the amount of waste plastic disposed. Environmental valuation system.

2. Equipment to decompose and dispose of waste plastic at the site; A base control device that is communicatively connected to an apparatus for disposing of the waste plastic at the base and acquires the amount of the waste plastic disposed of from the apparatus for disposing of the waste plastic; a token management device that is communicably connected to the base control device, acquires the amount of the waste plastic disposed from the base control device, issues and manages environmental value tokens without an owner at a predetermined ratio to the acquired amount of the waste plastic disposed, and enables an end consumer of energy derived from the disposal of the waste plastic to acquire ownership of the environmental value tokens; Environmental valuation system.

3. A token management device that issues and manages environmental value tokens according to the amount of waste plastic decomposed and disposed at a base, A communication interface that can communicate with a base control device that is communicatively connected to an apparatus that disposes of the waste plastic at the base; A processor and a memory device, The processor executes a program in the memory device to provide a transaction information acquisition unit and a token management unit, The transaction information acquisition unit acquires the disposal amount of the waste plastic from the base control device, The token management unit issues and manages the environmental value tokens without an owner at a predetermined ratio with respect to the amount of the waste plastic to be disposed of. Token management device.

4. A token management program that issues and manages environmental value tokens according to the amount of waste plastic decomposed and disposed at a base, On the computer, A communication function that enables communication with a base control device that is communicatively connected to an apparatus that disposes of the waste plastic at the base via a communication interface; A transaction information acquisition function that acquires the disposal amount of the waste plastic from the base control device; A token management function that issues and manages the environmental value tokens without an owner at a predetermined ratio to the amount of waste plastic disposal obtained; A token management program that makes this possible.

5. At the base, equipment that decomposes and disposes of waste plastic breaks down and disposes of the waste plastic, A base control device communicably connected to an apparatus for disposing of the waste plastic at the base acquires the amount of the waste plastic disposed of from the apparatus for disposing of the waste plastic, A token management device communicably connected to the base control device acquires the disposal amount of the waste plastic from the base control device, and issues and manages ownerless environmental value tokens at a predetermined ratio to the acquired disposal amount of the waste plastic. Environmental valuation methods.

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