Carbon footprint accounting method and device based on full life cycle of product, electronic equipment and storage medium

Abstract

The invention provides a carbon footprint accounting method and device based on a product full life cycle, electronic equipment and a storage medium, and relates to the technical field of product full life cycle evaluation. The carbon footprint accounting method comprises the following steps: determining the total carbon footprint amount of a product in a full life cycle; main products and symbiotic products are determined according to the production process and flow of the products; according to the method for determining the carbon footprint of the symbiotic product according to the property of the symbiotic product, under the condition that the symbiotic product is solid, the carbon footprint of the symbiotic product is determined according to a physical distribution method; determining the mass ratio of main elements in the main product and the solid symbiotic product, and determining a corresponding carbon footprint according to the mass ratio; under the condition that the symbiotic product is a non-solid product, determining a carbon footprint of the symbiotic product according to a system expansion method; determining a carbon footprint according to the yield of the product replaced by the non-solid symbiotic product; the defect that a physical distribution method or a system extension method is independently used in the prior art is overcome, and the accuracy of carbon footprint distribution is improved.

Description

Technical Field

[0001] The present application relates to the technical field of product life cycle evaluation, and specifically, to a carbon footprint accounting method and device based on the entire life cycle of a product, an electronic device, and a storage medium. Background Art

[0002] In the fields of environmental science and engineering, materials science and circular economy, life cycle assessment (LCA) of products is an important research method. Life cycle assessment refers to the evaluation of the entire process of a product from raw material extraction to the end of product use and then to disposal in order to understand its impact on the environment. Among them, carbon footprint refers to the total amount of greenhouse gas emissions directly and indirectly generated by a product throughout its life cycle. In the production process of ferroalloys, a large number of by-products are generated, which may have different uses and values. How to reasonably distribute these by-products is crucial to accurately calculate the carbon footprint of ferroalloy products.

[0003] In the existing technology, the allocation method of the carbon footprint of co-products in the whole life cycle assessment of ferroalloy products is mainly based on the ISO 14044 standard, namely: 1) Avoid allocation whenever possible: a) Divide the unit process to be allocated into two or more sub-processes and collect the input and output data related to these sub-processes; b) Expand the product system to include the functions related to the co-products; 2) When allocation is unavoidable, the input and output of the system should be divided into different products or functions in a way that reflects their potential physical relationship; for example, how the input and output change with the quantitative changes in the products or functions provided by the system; 3) When the physical relationship cannot be established or cannot be used alone as the basis for allocation, the input and output should be allocated among the products or functions in a way that reflects other relationships between them; for example, the input and output data can be allocated to the co-products in proportion to the economic value of the product.

[0004] However, existing technologies have some problems and shortcomings in allocating the carbon footprint of complex co-products in ferroalloy production: first, the ferroalloy production process is complex, and even if it is divided into the smallest sub-process, multiple co-products will be produced, and allocation is inevitable; second, although the system expansion method can calculate the carbon footprint of by-products more accurately, it is necessary to evaluate and calculate each by-product separately and find a suitable alternative process, which is very cumbersome and complicated in actual operation, and depending on the selected alternative process, the result deviation may be large, especially when there are many types of by-products with different properties, this method is particularly inconvenient; third, the by-products in the ferroalloy production process are diverse, and there are co-products in various forms such as solid, liquid, and gas. The physical allocation method often cannot fully consider the complexity and versatility of the co-products, which may lead to inaccurate carbon footprint allocation results; finally, the price of ferroalloys fluctuates greatly, resulting in great uncertainty in the economic allocation method; and product prices are often confidential information of the enterprise and difficult to obtain; this makes the economic allocation method difficult to apply.

[0005] Therefore, the allocation method in the existing standards is difficult to use for the allocation of carbon footprint of co-products in the full life cycle assessment of ferroalloy products. How to find a carbon footprint allocation method that is both accurate and simple and can meet the needs of complex ferroalloy co-products is an important problem facing current technology. Summary of the invention

[0006] In order to solve at least one of the above problems, the present application proposes a carbon footprint accounting method and device based on the entire life cycle of a product, an electronic device and a storage medium.

[0007] According to the first aspect of the present application, at least one embodiment of the present application provides a carbon footprint accounting method based on the entire life cycle of a product, including: determining the total carbon footprint of the product in the entire life cycle; determining the main product and co-product according to the production process and flow of the product; determining the method for determining the carbon footprint of the co-product according to the properties of the co-product, wherein: when the co-product is solid, determine the carbon footprint of the co-product according to the physical distribution method; when the co-product is non-solid, determine the carbon footprint of the co-product according to the system expansion method; determine the carbon footprint according to the output of the product replaced by the non-solid co-product; determine the mass ratio of the main elements in the main product and the solid co-product, and determine the corresponding carbon footprints of the main product and the solid co-product according to the mass ratio.

[0008] For example, in some embodiments of the present application, determining the total carbon footprint of the product in its entire life cycle includes: determining the carbon footprint of the product in each link of the entire life cycle and summing them up to obtain the total carbon footprint, wherein the entire life cycle includes raw material mining, transportation, processing and production.

[0009] For example, in some embodiments of the present application, determining the carbon footprint according to the output of the product replaced by the non-solid co-product includes: when the non-solid co-product is steam, calculating the carbon footprint of the non-solid co-product according to the following formula:

[0010] C=X·η·a

[0011] Wherein, C is the carbon footprint of the non-solid co-product, X is the output of the non-solid co-product, η is the production efficiency of the non-solid co-product, and a is the coefficient of the carbon footprint generated by producing one unit of the non-solid co-product.

[0012] For example, in some embodiments of the present application, the steam production efficiency η is 85%.

[0013] For example, in some embodiments of the present application, the method of determining the mass ratio of the main elements in the main product and the solid co-products, and determining the corresponding carbon footprints of the main product and the solid co-products based on the mass ratio, includes: subtracting the total carbon footprint of the product in its entire life cycle from the carbon footprint of the non-solid co-products to obtain the carbon footprint of the main product and the solid co-products.

[0014] For example, in some embodiments of the present application, when the product is a ferrosilicon product, the main product is ferrosilicon, and the solid co-products are silicon slag and microsilica powder.

[0015] For example, in some embodiments of the present application, when the product is a ferrosilicon product, the main element is silicon.

[0016] According to the second aspect of the present application, at least one embodiment of the present application provides a carbon footprint accounting device based on the entire life cycle of a product, which is used to execute the carbon footprint accounting method as described in any one of the first aspects, and the carbon footprint accounting device includes: a carbon footprint calculation unit, which is used to determine the total carbon footprint of the product in the entire life cycle; a product classification unit, which is used to determine the main product and the co-product according to the production process and flow of the product; and a method for determining the carbon footprint of the co-product according to the nature of the co-product, wherein: when the co-product is solid, the carbon footprint of the co-product is determined according to the physical distribution method; when the co-product is non-solid, the carbon footprint of the co-product is determined according to the system expansion method; the carbon footprint calculation unit is also used to determine the carbon footprint of the non-solid co-product according to the output of the product replaced by the non-solid co-product; and it is used to determine the mass ratio of the main elements in the main product and the solid co-product, and determine the corresponding carbon footprints of the main product and the solid co-product according to the mass ratio.

[0017] According to the third aspect of the present application, at least one embodiment of the present application provides an electronic device, comprising: one or more processors; a memory for storing one or more programs; when the one or more programs are executed by the one or more processors, the one or more processors execute a method as described in any one of the first aspects.

[0018] According to a fourth aspect of the present application, at least one embodiment of the present application provides a computer-readable storage medium having a computer program stored thereon, wherein the program, when executed by a processor, implements the method as described in any one of the first aspects.

[0019] Through the above exemplary embodiments, the present application provides a method and device for calculating carbon footprint based on the entire life cycle of a product, which has at least one of the following advantages:

[0020] 1. Accuracy: The carbon footprint accounting method and device of this application based on the entire life cycle of the product adopts a method that combines the physical allocation method with the system expansion method. It not only considers the physical form and chemical composition of the co-products, but also conducts an independent product system evaluation on them, so as to calculate the carbon footprint of ferroalloy products more comprehensively and accurately. It makes up for the shortcomings of the existing technology of using the physical allocation method or the system expansion method alone, and improves the accuracy of carbon footprint allocation.

[0021] 2. Simplicity: The system expansion method in this application requires a separate evaluation and calculation of each symbiotic product. However, by combining the physical allocation method, the symbiotic products can be preliminarily allocated first, and then the symbiotic products that require further precise calculation can be calculated using the system expansion method, thereby greatly simplifying the calculation process and improving work efficiency. Especially when there are many types of by-products with different properties, the carbon footprint accounting method of this application is particularly simple.

[0022] 3. Practicality: The carbon footprint accounting method provided in this application is not only applicable to the carbon footprint allocation of ferroalloy products, but can also be applied to the full life cycle assessment of other metal alloys or materials, and has broad application prospects; moreover, this method is also in line with the development concept of circular economy, and helps promote the recycling of resources and sustainable economic development.

[0023] It should be understood that the foregoing general description and the following detailed description are exemplary only and are not restrictive of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] By describing in detail exemplary embodiments thereof with reference to the accompanying drawings, the above and other objects, features and advantages of the present application will become more apparent. The accompanying drawings described below are only some embodiments of the present application, and are not intended to limit the present application.

[0025] Figure 1 A flow chart showing a carbon footprint calculation method based on the entire life cycle of a product according to an exemplary embodiment;

[0026] Figure 2 A schematic diagram of a carbon footprint accounting device based on the entire life cycle of a product is shown according to an exemplary embodiment;

[0027] Figure 3 A structural diagram of an electronic device provided by the present application is shown. DETAILED DESCRIPTION

[0028] Example embodiments will now be described more fully with reference to the accompanying drawings. However, example embodiments can be implemented in many forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided so that this application will be comprehensive and complete and will fully convey the concepts of the example embodiments to those skilled in the art. The same reference numerals in the figures represent the same or similar parts, and thus their repeated description will be omitted.

[0029] The described features, structures or characteristics may be combined in one or more embodiments in any suitable manner. In the following description, many specific details are provided to provide a full understanding of the embodiments of the present disclosure. However, those skilled in the art will appreciate that the technical solutions of the present disclosure may be practiced without one or more of these specific details, or other modes, components, materials, devices, etc. may be adopted. In these cases, known structures, methods, devices, implementations, materials or operations will not be shown or described in detail.

[0030] The flowcharts shown in the accompanying drawings are only exemplary and do not necessarily include all the contents and operations / steps, nor must they be executed in the order described. For example, some operations / steps can be decomposed, and some operations / steps can be combined or partially combined, so the actual execution order may change according to actual conditions.

[0031] The terms "first", "second", etc. in the specification and claims of this application and the above-mentioned drawings are used to distinguish different objects, rather than to describe a specific order. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions. For example, a process, method, system, product or device that includes a series of steps or units is not limited to the listed steps or units, but optionally includes steps or units that are not listed, or optionally includes other steps or units inherent to these processes, methods, products or devices.

[0032] Those skilled in the art will appreciate that the drawings are merely schematic diagrams of example embodiments, and the modules or processes in the drawings are not necessarily necessary for implementing the present application, and therefore cannot be used to limit the scope of protection of the present application.

[0033] Figure 1 A flow chart of a carbon footprint calculation method based on the entire life cycle of a product is shown according to an exemplary embodiment.

[0034] like Figure 1 As shown, the carbon footprint accounting method based on the entire life cycle of a product includes steps S101-S105:

[0035] In step S101, the total carbon footprint of a product throughout its life cycle is determined.

[0036] According to some embodiments, determining the total carbon footprint of a product in its entire life cycle includes: determining the carbon footprint of each link in the entire life cycle of the product, and summing the carbon footprint of each link to obtain the total carbon footprint. The entire life cycle includes raw material mining, transportation, processing and production.

[0037] According to the example embodiment, the carbon footprint of the product is calculated using the method of full life cycle research. Data on the full life cycle of the product is collected, including data on various links such as raw material mining, transportation, processing and production. For example, the raw material mining stage involves the mining of iron ore and silica; the transportation stage and the processing stage involve the crushing, screening, sintering and pelletizing of iron ore; the production stage involves the smelting and casting of ferrosilicon products.

[0038] In step S102, the main products and co-products are determined according to the production process and flow of the products.

[0039] According to some embodiments, when the product is a ferrosilicon product, the main product is ferrosilicon, the solid co-products are silicon slag and microsilica powder, and the non-solid co-products are steam, electricity, etc.

[0040] In step S103, a method for determining the carbon footprint of the co-product is determined according to the properties of the co-product.

[0041] According to an exemplary embodiment, when the co-product is solid, the carbon footprint of the co-product is determined according to the physical distribution method. When the co-product is non-solid, the carbon footprint of the co-product is determined according to the system expansion method.

[0042] According to the exemplary embodiment, the physical allocation method cannot be used for non-solid products in the co-products, so the system expansion method is used for supplementary evaluation and calculation. By performing separate evaluation and calculation on each co-product, the allocation ratio of the carbon footprint is further determined.

[0043] In step S104, the carbon footprint of the non-solid co-products is determined according to the output of the products replaced by the non-solid co-products.

[0044] According to the exemplary embodiment, in the evaluation and calculation process of the system expansion method, the substitution process of common co-products is determined, so as to determine a more accurate and reasonable carbon footprint allocation ratio and ensure the comparability of the results. For example, for steam co-products, the carbon footprint is calculated according to the efficiency of producing steam at 85%. For electrical energy co-products, the substitution calculation is performed according to the carbon footprint generated during power generation.

[0045] According to some embodiments, when the non-solid co-product is steam, the carbon footprint of the non-solid co-product is calculated according to the following formula instead of the steam production process:

[0046] C=X·η·a

[0047] Where C is the carbon footprint of non-solid co-products, X is the output of non-solid co-products, η is the production efficiency of non-solid co-products, and a is the coefficient of the carbon footprint generated by producing one unit of non-solid co-products.

[0048] Among them, the steam production efficiency is generally taken as 85%.

[0049] In step S105, the mass ratio of the main elements in the main product and the solid co-product is determined, and the corresponding carbon footprints of the main product and the solid co-product are determined according to the mass ratio.

[0050] According to an exemplary embodiment, the total carbon footprint of the product in the entire life cycle is subtracted from the carbon footprint of the non-solid co-product to obtain the carbon footprint of the main product and the solid co-product. The corresponding carbon footprints of the main product and the solid co-product are determined according to the mass ratio of the main elements in the main product and the solid co-product.

[0051] Among them, the physical distribution method is used to make a preliminary distribution of the main products and co-products in alloy production, and the distribution standards and distribution ratios can be determined based on factors such as the shape, quality, function and use of each product.

[0052] According to some embodiments, in case the product is a ferrosilicon product, the main element is silicon.

[0053] The present application provides a carbon footprint accounting method based on the entire life cycle of a product, which adopts a method combining a physical allocation method with a system expansion method. By combining the physical allocation method, the by-products can be initially allocated, and then the by-products that need to be further accurately calculated can be calculated by the system expansion method. The physical form and chemical composition of the co-products are considered, and an independent product system evaluation is performed on them, so that the carbon footprint of the alloy product can be calculated more comprehensively and accurately, which makes up for the shortcomings of the physical allocation method or the system expansion method used alone in the prior art, improves the accuracy of carbon footprint allocation, greatly simplifies the calculation process, and improves work efficiency. Especially when there are many types of by-products with different properties, the allocation method of the present invention is particularly simple.

[0054] The carbon footprint accounting method based on the product life cycle provided in this application is not only applicable to the carbon footprint allocation of ferroalloy products, but can also be applied to the full life cycle evaluation of other metal alloys or materials, and has broad application prospects. At the same time, this method is also in line with the development concept of circular economy, which helps to promote the recycling of resources and sustainable economic development.

[0055] Embodiment 1

[0056] This embodiment is a carbon footprint accounting method for ferrosilicon alloy based on the entire life cycle, and the specific steps are as follows:

[0057] Taking the production of ferrosilicon alloy as an example, the production process will produce ferrosilicon products and co-products such as steam, silicon slag and micro-silicon powder.

[0058] Firstly, according to the production process and procedure of ferrosilicon products, the co-products are determined to be steam, silicon slag and microsilica powder, and the output of each product is determined.

[0059] Secondly, analyze the properties and uses of steam, silicon slag and microsilica powder to determine the distribution method. Ferrosilicon products, silicon slag and microsilica powder are all solid, and their main components are silicon. Therefore, the physical distribution method is used to determine the distribution ratio based on the mass of silicon. Steam does not contain silicon and cannot be distributed using the physical distribution method. Therefore, the system expansion method is used to find alternative processes for substitution. The distribution method of the main co-products in the production process of ferrosilicon alloys is shown in Table 1 below:

[0060] Symbiotic products Treatment Allocation Principles / Alternative Process Silicon slag Physical distribution method The mass ratio of silicon in slag to silicon in product Microsilica fume Physical distribution method The mass ratio of silicon in slag to silicon in product steam System Expansion Method 85% efficiency in producing steam

[0061] Table 1

[0062] Finally, they are distributed according to the determined distribution ratio and replacement process. Specifically, the physical distribution method is used for ferrosilicon products, silicon slag and microsilica powder, and the distribution is based on the mass ratio of silicon elements in silicon slag and microsilica powder and silicon elements in ferrosilicon products. The distribution coefficients are: 91.296% for ferrosilicon products, 1.948% for silicon slag and 6.756% for microsilica powder; the system expansion method is used for steam, which is replaced by the steam production process and converted at an efficiency of 85%. The output of each product in ferrosilicon alloy is shown in Table 2 below:

[0063]

[0064] Table 2

[0065] For example, ferrosilicon alloy produces 1t of ferrosilicon products, 0.05t of silicon slag, 0.15t of microsilicon powder, and 1.26t of steam in the entire life cycle of the product. Among them, ferrosilicon products are the main products, silicon slag and microsilicon powder are solid products in the co-products, and steam is the non-solid product in the co-products. Taking the total carbon footprint of 10tCO2e as an example, the steam carbon footprint factor is set to 1tCO2e / t, then in this embodiment, the carbon footprint of 1.26t of steam is 1.02tCO2e. The total carbon footprint of ferrosilicon products, silicon slag and microsilicon powder is 8.98tCO2e. According to the distribution coefficient of silicon element in ferrosilicon products, silicon slag and microsilicon powder, the distribution coefficient of ferrosilicon products is 91.296%, so the carbon footprint of producing 1t of ferrosilicon products is 8.198tCO2e. The distribution coefficient of silicon slag is 1.948%, so the carbon footprint of producing 0.05t of silicon slag is 0.175tCO2e. The distribution coefficient of microsilica fume is 6.756%, so the carbon footprint of producing 0.15t of microsilica fume is 0.607tCO2e. So far, the carbon footprint calculation of ferrosilicon alloy is completed.

[0066] Figure 2A schematic diagram of a carbon footprint accounting device based on the entire life cycle of a product is shown according to an exemplary embodiment.

[0067] like Figure 2 As shown, the carbon footprint calculation device based on the entire life cycle of a product includes: a carbon footprint calculation unit 201 and a product classification unit 202.

[0068] The carbon footprint calculation unit 201 is used to determine the total carbon footprint of a product throughout its entire life cycle.

[0069] The product classification unit 202 is used to determine the main products and co-products according to the production process and flow of the products; and is used to determine the method for determining the carbon footprint of the co-products according to the properties of the co-products, wherein: when the co-products are solid, the carbon footprint of the co-products is determined according to the physical distribution method; when the co-products are non-solid, the carbon footprint of the co-products is determined according to the system expansion method.

[0070] The carbon footprint calculation unit 201 is also used to determine the carbon footprint of non-solid co-products based on the output of products replaced by the non-solid co-products; and to determine the mass ratio of the main elements in the main products and solid co-products, and determine the corresponding carbon footprints of the main products and solid co-products based on the mass ratio.

[0071] The carbon footprint accounting device based on the entire life cycle of a product is used to execute the carbon footprint accounting method based on the entire life cycle of a product as described above, so it will not be repeated here.

[0072] Figure 3 A structural diagram of an electronic device provided by the present application is shown.

[0073] See also Figure 3 , Figure 3 An electronic device is provided, comprising a processor and a memory. The memory stores computer instructions. When the computer instructions are executed by the processor, the processor executes the computer instructions to achieve the following Figure 1 The method and refinement scheme shown.

[0074] It should be understood that the above-mentioned device embodiments are only illustrative, and the device disclosed in the present application can also be implemented in other ways. For example, the division of units / modules in the above-mentioned embodiments is only a logical function division, and there may be other division methods in actual implementation. For example, multiple units, modules or components can be combined, or can be integrated into another system, or some features can be ignored or not executed.

[0075] In addition, unless otherwise specified, each functional unit / module in each embodiment of the present application may be integrated into one unit / module, each unit / module may exist physically separately, or two or more units / modules may be integrated together. The above-mentioned integrated unit / module may be implemented in the form of hardware or in the form of a software program module.

[0076] If the integrated unit / module is implemented in the form of hardware, the hardware may be a digital circuit, an analog circuit, etc. The physical implementation of the hardware structure includes but is not limited to transistors, memristors, etc. Unless otherwise specified, the processor or chip may be any appropriate hardware processor, such as CPU, GPU, FPGA, DSP, and ASIC, etc. Unless otherwise specified, the on-chip cache, off-chip memory, and storage may be any appropriate magnetic storage medium or magneto-optical storage medium, such as Resistive Random Access Memory (RRAM), Dynamic Random Access Memory (DRAM), Static Random Access Memory (SRAM), Enhanced Dynamic Random Access Memory (EDRAM), High-Bandwidth Memory (HBM), Hybrid Memory Cube (HMC), etc.

[0077] If the integrated unit / module is implemented in the form of a software program module and sold or used as an independent product, it can be stored in a computer-readable memory. Based on this understanding, the technical solution of the present application, or the part that contributes to the prior art, or all or part of the technical solution can be embodied in the form of a software product, which is stored in a memory and includes several instructions for a computer device (which can be a personal computer, a server or a network device, etc.) to perform all or part of the steps of the various embodiments of the present disclosure. The aforementioned memory includes: U disk, read-only memory (ROM, Read-Only Memory), random access memory (RAM, Random Access Memory), mobile hard disk, disk or optical disk, etc. Various media that can store program codes.

[0078] The present application also provides a non-transitory computer storage medium storing a computer program. When the computer program is executed by multiple processors, the processors execute the following Figure 1 The method and refinement scheme shown.

[0079] It should be clearly understood that the present application describes how to form and use specific examples, but the present application is not limited to any details of these examples. On the contrary, based on the teaching of the content disclosed in the present application, these principles can be applied to many other embodiments.

[0080] In addition, it should be noted that the above figures are only schematic illustrations of the processes included in the method according to the exemplary embodiments of the present application, and are not intended to be limiting. It is easy to understand that the processes shown in the above figures do not indicate or limit the time sequence of these processes. In addition, it is also easy to understand that these processes can be performed synchronously or asynchronously, for example, in multiple modules.

[0081] The exemplary embodiments of the present application are specifically shown and described above. It should be understood that the present application is not limited to the detailed structures, configurations or implementations described herein; on the contrary, the present application is intended to cover various modifications and equivalent configurations included in the spirit and scope of the appended claims.

Claims

1. A carbon footprint accounting method based on the entire life cycle of a product, characterized in that: include: Determine the total carbon footprint of the product over its entire life cycle; Determine the main products and co-products based on the production process and flow of the products; A method for determining the carbon footprint of the co-product is determined based on the properties of the co-product, wherein: In the case where the co-product is solid, determining the carbon footprint of the co-product according to a physical partitioning method; In the case where the co-product is non-solid, determining the carbon footprint of the co-product according to the system expansion method; Determining the carbon footprint of the non-solid co-product based on the output of the product replaced by the non-solid co-product; The mass ratio of the main elements in the main product and the solid co-product is determined, and the corresponding carbon footprints of the main product and the solid co-product are determined based on the mass ratio.

2. The carbon footprint calculation method according to claim 1, characterized in that: Determine the total carbon footprint of the product over its entire life cycle, including: The carbon footprint of the product in each link of the entire life cycle is determined and summed to obtain the total carbon footprint, wherein the entire life cycle includes raw material mining, transportation, processing and production.

3. The carbon footprint calculation method according to claim 1, characterized in that: Determining the carbon footprint of the non-solid co-products according to the output of the products replaced by the non-solid co-products includes: When the non-solid co-product is steam, the carbon footprint of the non-solid co-product is calculated according to the following formula: C=X·η·a Wherein, C is the carbon footprint of the non-solid co-product, X is the output of the non-solid co-product, η is the production efficiency of the non-solid co-product, and a is the coefficient of the carbon footprint generated by producing one unit of the non-solid co-product.

4. The carbon footprint calculation method according to claim 3, characterized in that: The steam production efficiency η is 85%.

5. The carbon footprint calculation method according to claim 1, characterized in that: The determining of the mass ratio of the main elements in the main product and the solid co-product, and determining the corresponding carbon footprints of the main product and the solid co-product according to the mass ratio, includes: The carbon footprints of the main product and the solid co-products are obtained by subtracting the total carbon footprint of the product in its entire life cycle from the carbon footprint of the non-solid co-products.

6. The carbon footprint calculation method according to claim 1, characterized in that: When the product is a ferrosilicon product, the main product is ferrosilicon, and the solid co-products are silicon slag and microsilica powder.

7. The carbon footprint calculation method according to claim 1 or 6, characterized in that: In the case where the product is a ferrosilicon product, the main element is silicon.

8. A carbon footprint accounting device based on the entire life cycle of a product, characterized in that: Used to execute the carbon footprint calculation method according to any one of claims 1 to 7, the carbon footprint calculation device comprises: A carbon footprint calculation unit for determining the total carbon footprint of the product over its entire life cycle; A product classification unit, for determining the main product and the co-product according to the production process and flow of the product; and for determining the carbon footprint of the co-product according to the properties of the co-product, wherein: when the co-product is solid, the carbon footprint of the co-product is determined according to the physical distribution method; when the co-product is non-solid, the carbon footprint of the co-product is determined according to the system expansion method; The carbon footprint calculation unit is also used to determine the carbon footprint of the non-solid co-products based on the output of the products replaced by the non-solid co-products; and to determine the mass ratio of the main elements in the main product and the solid co-products, and determine the corresponding carbon footprints of the main product and the solid co-products based on the mass ratio.

9. An electronic device, characterized in that: include: one or more processors; A memory for storing one or more programs; When the one or more programs are executed by the one or more processors, the one or more processors execute the method according to any one of claims 1 to 7.

10. A computer-readable storage medium having a computer program stored thereon, characterized in that: When the program is executed by a processor, the method according to any one of claims 1 to 7 is implemented.

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