Ceramic product carbon footprint accounting method and system

Abstract

The invention discloses a ceramic product carbon footprint accounting method and system, and relates to the technical field of carbon emission calculation. The method comprises the following steps: establishing a process flow framework of a target product based on input data and output data of each process device in a production flow and a sequence of each process device in the production flow; determining the data integrity of the input data and the output data of each process device, and dividing the process flow framework of the target product into a plurality of modules according to the data integrity; and for the plurality of modules, constructing a carbon footprint accounting model corresponding to each module by adopting a life cycle evaluation method, and carrying out carbon footprint accounting on the target product through the carbon footprint accounting model corresponding to each module. According to the scheme, accurate carbon footprint accounting can be carried out on specific types of ceramic products.

Description

Technical Field

[0001] The present invention relates to the technical field of carbon emission calculation, and in particular to a method and system for calculating the carbon footprint of ceramic products. Background Art

[0002] Carbon footprint accounting is the process of quantifying the greenhouse gas emissions directly or indirectly generated by an individual, product, or service over a specified period of time. Ceramic production involves multiple interconnected processes, such as ball milling, spray drying, kiln firing, and finishing. Each process consumes significant amounts of energy and raw materials, generating corresponding emissions. Accurately calculating the carbon footprint of these production processes is crucial for environmental management and decision-making.

[0003] Due to the wide variety of ceramic products (such as bowls, plates, tea sets, vases, etc.), the production processes of different ceramic products and the carbon emissions in each production process are all different (such as waste gas generated during the firing process, traffic carbon emissions generated during the material transportation process, and carbon emissions during the production and waste disposal of packaging materials). In the actual production of ceramics, it is usually impossible to fully count the inventory data of each process, resulting in the inability to formulate detailed carbon footprint accounting standards for specific types of ceramic products, which in turn leads to poor applicability of carbon footprint accounting for specific ceramic products and low accuracy of carbon footprint accounting for specific ceramic products.

[0004] In summary, existing technologies are unable to achieve accurate carbon footprint accounting for specific types of ceramic products when the inventory data of the ceramic production process is incomplete. Summary of the Invention

[0005] Based on this, it is necessary to provide a method and system for calculating the carbon footprint of ceramic products to address the technical problem that the existing technology has low accuracy in calculating the carbon footprint of specific ceramic products.

[0006] The present invention adopts the following technical solutions:

[0007] In a first aspect, the present invention provides a method for calculating the carbon footprint of ceramic products, characterized by comprising:

[0008] Establish a process framework for the target product based on the input data and output data of each process unit in the production process and the sequence of each process unit in the production process;

[0009] Determining the data integrity of the input data and output data of each process device, dividing the process flow framework of the target product into multiple modules based on the data integrity, performing inventory analysis on the multiple modules, and obtaining material data related to the carbon footprint in each module;

[0010] The carbon footprint calculation model corresponding to each module is constructed using the life cycle assessment method, and the material data related to the carbon footprint in each module is input into the carbon footprint calculation model corresponding to the module to perform carbon footprint calculation, thereby obtaining the carbon footprint calculation result of the target product.

[0011] Furthermore, the data integrity of the input data and output data of each process device is determined, and the process flow framework of the target product is divided into multiple modules based on the data integrity, specifically including:

[0012] For each of the process devices, determining whether the device is a device without output data;

[0013] If the device does not produce output data, the device and its upstream device are merged into one module, and during the merging process, the input data and output data of all upstream devices of the device are incorporated into the input data and output data of the module;

[0014] If the process device is not a process device without output data, determine whether the input data or output data of the process device is missing. If the input data or output data is missing, divide the process device into a data missing module, which includes all process devices with missing input data or output data.

[0015] Furthermore, the carbon footprint calculation model corresponding to each of the modules is constructed as follows:

[0016] Sum up the carbon footprint of raw materials, production processes, public works, transportation, and waste disposal to get the carbon footprint accounting model corresponding to the module;

[0017] The carbon footprint of raw materials is calculated as the sum of the product of the consumption of each raw material and the corresponding greenhouse gas emission factor during the production process of the module;

[0018] The carbon footprint of the production process is calculated as the sum of the product of the material / non-fossil energy consumption of the module during the production process and the corresponding greenhouse gas emission factor, and the sum of the product of the fossil fuel consumption and low calorific value of the module during the production process and the corresponding greenhouse gas emission factor;

[0019] The utility carbon footprint is calculated as the sum of the product of the utility consumption and the corresponding greenhouse gas emission factor during the production process of the module;

[0020] The transportation carbon footprint is calculated by multiplying the transportation mass, transportation distance and corresponding transportation greenhouse gas emission factor of the raw materials and auxiliary materials required in the production process of this module;

[0021] The carbon footprint of the three wastes disposal is calculated as the sum of the mass of each waste generated by the module during the production process multiplied by the greenhouse gas emission factor of the corresponding waste treatment.

[0022] Furthermore, before establishing a process flow framework for the target product based on the input data and output data of each process unit in the production process and the sequence of each process unit in the production process, the process further includes:

[0023] A system boundary for performing carbon footprint calculation on the target product is determined based on the production process, and process equipment outside the system boundary is not subjected to carbon footprint calculation.

[0024] In a second aspect, the present invention provides a ceramic product carbon footprint accounting system, comprising:

[0025] An acquisition module is used to establish a process flow framework for a target product based on input data and output data of each process unit in the production process and the sequence of each process unit in the production process;

[0026] A construction module is used to determine the data integrity of the input data and output data of each process device, divide the process flow framework of the target product into multiple modules based on the data integrity, perform inventory analysis on the multiple modules, and obtain material data related to the carbon footprint in each module;

[0027] The accounting module is used to construct a carbon footprint accounting model corresponding to each module using the life cycle assessment method, and input the material data related to the carbon footprint in each module into the carbon footprint accounting model corresponding to the module to perform carbon footprint accounting, so as to obtain the carbon footprint accounting result of the target product.

[0028] At least one technical solution adopted in the present invention can achieve the following beneficial effects: the present invention first establishes a process flow framework for the target product based on the input data, output data of each process device in the production process and the sequence of each process device in the production process; then determines the data integrity of the input data and output data of each process device, divides the process flow framework for the target product into multiple modules according to the data integrity, performs inventory analysis on the multiple modules, and obtains the material data involving carbon footprint in each module; finally, adopts the life cycle assessment method to construct a carbon footprint accounting model corresponding to each module, and inputs the material data involving carbon footprint in each module into the carbon footprint accounting model corresponding to the module for carbon footprint accounting, and obtains the carbon footprint accounting result of the target product. Through the above solution, the ceramic product production process can be decomposed into several carbon footprint process unit modules, which improves the quality and reuse efficiency of the inventory data, makes the carbon footprint modeling process transparent, and makes it easier for users to understand the product model. In addition, based on the life cycle assessment method, a carbon footprint accounting model corresponding to each module is constructed, which can cover every link from raw material acquisition, production and processing to waste disposal, ensuring that every potential emission source is taken into consideration. Comprehensive coverage can prevent the overall carbon footprint from being underestimated due to the omission of a certain link, and realize accurate carbon footprint accounting for specific types of ceramic products when the inventory data of the ceramic production process is incomplete. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0030] Figure 1 A flow chart of a method for calculating the carbon footprint of ceramic products provided by the present invention;

[0031] Figure 2 A flow chart of another method for calculating the carbon footprint of ceramic products provided by the present invention;

[0032] Figure 3 This is a structural schematic diagram of a ceramic product carbon footprint accounting system provided by the present invention. DETAILED DESCRIPTION

[0033] To make the objectives, technical solutions, and advantages of the present invention more clear, the technical solutions of the present invention will be clearly and completely described below in conjunction with specific embodiments of the present invention and corresponding drawings. Obviously, the embodiments described are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0034] The server mentioned in the present invention can be a server installed on a business platform, or a device such as a desktop computer or laptop computer capable of executing the solution of the present invention. For ease of explanation, the following description will only use the server as the execution entity. The following, combined with the accompanying drawings, details the technical solutions provided by various embodiments of the present invention.

[0035] refer to Figure 1 The present invention provides a method for calculating the carbon footprint of ceramic products, which specifically includes the following steps:

[0036] S10: Based on the input data and output data of each process unit in the production process and the sequence of each process unit in the production process, a process flow framework for the target product is established.

[0037] In this example, the target product refers to the ceramic product for which carbon footprint calculation is performed. The target product is determined based on the input product basic data. This input product basic data includes, but is not limited to, the product name, industry, functional unit, system boundary, production process, process raw materials, geographic location, and calculation period. The target product for carbon footprint calculation is determined based on the product name. Input data includes, but is not limited to, raw materials, auxiliary materials, energy and materials for production equipment, and utilities. Output data includes, but is not limited to, transportation emissions and waste disposal emissions.

[0038] Specifically, the process flow framework of the target product is established by using arrows or lines to represent material flow or energy flow, connecting each process device in sequence to form a process path, and constructing a process flow framework for ceramic products.

[0039] S20: Determine the data integrity of the input data and output data of each process device, divide the process flow framework of the target product into multiple modules based on the data integrity, perform inventory analysis on the multiple modules, and obtain the material data related to the carbon footprint in each module.

[0040] In this example, data integrity refers to the completeness of the input and output data for each process unit. By breaking down the ceramic product production process into several carbon footprint process unit modules, this example improves the quality and reuse efficiency of inventory data, making the carbon footprint modeling process transparent and easier for users to understand the product model.

[0041] S30: A carbon footprint accounting model corresponding to each module is constructed using the life cycle assessment method, and the material data involving carbon footprint in each module is input into the carbon footprint accounting model corresponding to the module to perform carbon footprint accounting, thereby obtaining the carbon footprint accounting result of the target product.

[0042] In this embodiment, reference Figure 2, using the life cycle assessment method to calculate the greenhouse gases generated during the production of ceramic products, and convert other greenhouse gases into carbon dioxide equivalent (CO2e). Among them, the carbon footprint accounting model corresponding to each module in each module is constructed as follows:

[0043] The carbon footprint calculation model corresponding to this module is obtained by summing the carbon footprint of raw materials, production processes, public works, transportation, and waste disposal. The calculation expression is:

[0044] CF=CF M +CF I +CF P +CP T +CF W ;

[0045] Among them, CF represents the carbon footprint of the ceramic product production process, the unit is kgCO2e; CF M Indicates the carbon footprint of raw materials and the greenhouse gas emissions generated by the raw materials and auxiliary materials required in the production process at each stage, in kgCO2e; CF I Indicates greenhouse gas emissions from equipment energy consumption and material consumption in the production area, in kgCO2e; CF P The carbon footprint of public works is the greenhouse gas emissions generated by the public production auxiliary equipment required in the production process, and the unit is kgCO2e; CF T The transport carbon footprint is the greenhouse gas emissions generated by the transportation of raw materials required for the production process, and the unit is kgCO2e; CF W It represents the carbon footprint of the three wastes, that is, the greenhouse gas emissions generated by the disposal of the three wastes during the production process, and the unit is kgCO2e.

[0046] Specifically, the carbon footprint of raw materials is calculated by multiplying the consumption of each raw material in the production process of the module by the corresponding greenhouse gas emission factor. The specific calculation formula is:

[0047] CF M =∑CF M,n ;

[0048] CF M,n =∑AI 1,n ×F 1,i,n ;

[0049] Among them CF M is the carbon footprint of raw materials and auxiliary materials, the unit is kgCO2e; CF M，n The carbon footprint generated during the production of the nth raw material, in kgCO2e; AI 1，n is the consumption of the nth raw material and the unit depends on the type of raw material; F 1，i，nis the greenhouse gas emission factor of the i-th type of raw material, and the unit depends on the type of raw material.

[0050] The carbon footprint of the production process is calculated as the sum of the product of the material / non-fossil energy consumption of the module during the production process and the corresponding greenhouse gas emission factor, and the sum of the product of the fossil fuel consumption and low calorific value of the module during the production process and the corresponding greenhouse gas emission factor. The calculation expression is:

[0051] CF I =∑CF IN,m +∑CF IF,m ;

[0052] CF IN,n =∑AI 2,m,n ×F 2,i,m,n ;

[0053] CF IF,n =∑AI 2,m,n,j ×NCV 2,m,n ×F 2,i,m,n,j ;

[0054] Among them CF I is the carbon footprint of the production process, the unit is kgCO2e; CF IN，m is the carbon footprint generated by the mth process, in kgCO2e; AI 2，m，n F is the consumption of material / energy n in the production of the mth process, and the unit depends on the type of material / energy; 2，m，n The greenhouse gas emission factor of type i for the production input material / energy n of the mth process. The unit depends on the type of material / energy. IF，n The carbon footprint of the combustion of the nth fossil fuel used in the production of the mth process, in kgCO2e; AI 2，m，n，j NCV is the consumption of the nth fossil fuel for the jth combustion method in the production of the mth process, the unit depends on the type of combustion; 2，m，n F is the lower calorific value of the nth fossil fuel used in the production of the mth process, and the unit depends on the type of combustion; 2，i，m，n，j The ith greenhouse gas emission factor corresponding to the jth combustion method of the nth fossil fuel input in the mth production process, the unit depends on the type of combustion.

[0055] The carbon footprint of utilities is calculated as the sum of the products of the utility consumption and the corresponding greenhouse gas emission factors during the production process of the module.

[0056] In this embodiment, the calculation of the utility carbon footprint is highly time-sensitive. First, it is necessary to collect the processing time T of the production of a specific ceramic product, and collect data on the material and energy consumption of production auxiliary equipment and equipment such as air conditioners, blowers, electric lights, electric fans, and computers in the factory production workshop during this time sequence. Based on this, the utility carbon footprint is calculated. The utility carbon footprint is calculated as: the sum of the product of the utility consumption of each process and the corresponding greenhouse gas emission factor. The calculation formula is as follows:

[0057] CF P =∑CF P,n ;

[0058] CF P,n =∑AI 3,n,m ×F 3,i,n,m ;

[0059] Among them CF P Carbon footprint of utilities, kgCO2e; CF P，n is the carbon footprint of the nth equipment of the production area utility project during the period T, kgCO2e; AI 3，m，n F is the consumption of material / energy m by the nth equipment of the public works in the production area during period T, and the unit depends on the type of material / energy; 3，n，m It is the ith greenhouse gas emission factor of the nth equipment in the production area's public works with material / energy input m during period T. The unit depends on the type of material / energy.

[0060] The calculation method of transportation carbon footprint is the sum of the product of the transportation mass, transportation distance and corresponding transportation greenhouse gas emission factor of the raw materials and auxiliary materials required in the production process of this module. The calculation expression is:

[0061] CF T =∑CF T,n ;

[0062] CF T,n =∑AI 4,n,k ×D 4,n,k ×F i,k ;

[0063] Among them CF T is the carbon footprint of transportation, in kgCO2e; CF T，n The carbon footprint generated by the transportation of the nth raw material, in kgCO2e; AI 4，n，k D is the transportation volume of the nth raw material and auxiliary material by the kth transportation method, and the unit depends on the type of raw material; 4，n，k F is the transportation distance of the nth raw material and auxiliary material by the kth mode of transportation, in km; i，kis the ith greenhouse gas emission factor for the kth mode of transport, and the unit depends on the type of raw material.

[0064] The carbon footprint of the three wastes disposal is calculated as the sum of the mass of each waste generated by the module during the production process multiplied by the greenhouse gas emission factor of the corresponding waste treatment. The calculation expression is:

[0065] CF W =∑CF W,n ;

[0066] CF W,n =∑AI 5,n ×F 5,i,n ;

[0067] Among them, CF W is the fossil fuel carbon footprint, in kgCO2e; CF w，n is the carbon footprint of the nth type of waste disposal, in kgCO2e; AI 5，n is the consumption of the nth type of waste, and the unit depends on the type of waste; F 5，i，n is the greenhouse gas emission factor of the i-th type of waste for the n-th type of waste, and the unit depends on the type of combustion.

[0068] The solution shown in this embodiment constructs a carbon footprint accounting model corresponding to each module based on the life cycle assessment method, which can cover every link from raw material acquisition, production and processing to waste disposal, ensuring that every potential emission source is taken into consideration. Comprehensive coverage can prevent the overall carbon footprint from being underestimated due to the omission of a certain link.

[0069] based on Figure 1A method for calculating the carbon footprint of ceramic products is shown. The method first obtains the production process of the target product, and establishes a process flow framework for the target product based on the input data, output data of each process unit in the production process and the sequence of each process unit in the production process; then determines the data integrity of the input data and output data of each process unit, divides the process flow framework of the target product into multiple modules based on the data integrity, performs inventory analysis on the multiple modules, and obtains the material data involving carbon footprint in each module; finally, the life cycle assessment method is used to construct a carbon footprint accounting model corresponding to each module, and the material data involving carbon footprint in each module is input into the carbon footprint accounting model corresponding to the module for carbon footprint accounting, and the carbon footprint accounting result of the target product is obtained. Through the above scheme, the ceramic product production process can be decomposed into several carbon footprint process unit modules, which improves the quality and reuse efficiency of the inventory data, makes the carbon footprint modeling process transparent, and makes it easier for users to understand the product model. In addition, based on the life cycle assessment method, a carbon footprint accounting model corresponding to each module is constructed, which can cover every link from raw material acquisition, production and processing to waste disposal, ensuring that every potential emission source is taken into consideration. Comprehensive coverage can prevent the overall carbon footprint from being underestimated due to the omission of a certain link, and realize accurate carbon footprint accounting for specific types of ceramic products when the inventory data of the ceramic production process is incomplete.

[0070] When applying the carbon footprint calculation method for ceramic products provided by the present invention, it is not necessary to Figure 1 The steps are executed in the order shown. The specific execution order of the steps can be determined according to needs, and the present invention does not limit this.

[0071] Furthermore, in one or more embodiments of the present invention, the data integrity of the input data and output data of each process device is determined, and the process flow framework of the target product is divided into multiple modules based on the data integrity, specifically including:

[0072] For the i-th device in each process device, determine whether the device is a device without output data.

[0073] If the device is a device without output data, the device and its upstream device are merged into one module, and during the merging process, the input data and output data of all upstream devices of the device are included in the input data and output data of the module.

[0074] If the process device is not a process device without output data, determine whether the input data or output data of the process device is missing. If the input data or output data is missing, divide the process device into a data missing module, which includes all process devices with missing input data or output data.

[0075] In this embodiment, in actual production, not every process device can be counted with complete inventory data for carbon footprint accounting. Therefore, it is necessary to modularize the process flow to ensure that the final output product of each accounting module is traceable. Steps for module division: First, for devices without product output, treat them as intermediate processes and determine whether they need to be merged with upstream devices. Secondly, during the merging process, the material input and direct emission data of all upstream devices are included in the device that finally has product output. The merged module only needs to retain the final input and output data. Finally, for devices with missing data, they are packaged as a whole according to the existing available data and calculated as a separate module. When the data collection mechanism is improved, the modules can be further split and refined to improve the accuracy and resolution of the calculation. Reasonable division of modules can simplify the data collection and model building process.

[0076] Among them, the upstream device refers to the raw material mining and processing equipment, including various types of mining machinery used to mine ceramic raw materials (such as clay, feldspar, quartz, etc.), and equipment for crushing, grinding, screening, etc. of raw materials. The downstream device drying equipment refers to drying equipment, firing equipment, decoration and processing equipment, and testing and packaging equipment. It should be noted that in one or more embodiments of the present invention, the upstream device and the downstream device are relative concepts when the process device is divided into modules. The upstream device refers to a process device that is at the front of the construction sequence in the process flow relative to the target process device (i.e., the i-th device). The downstream device refers to a process device that is at the back of the construction sequence in the process flow relative to the target process device.

[0077] Furthermore, in one or more embodiments of the present invention, before establishing a process flow framework for a target product based on input data and output data of each process unit in the production process and the sequence of each process unit in the production process, the process further includes:

[0078] The system boundary for carbon footprint accounting of the target product is determined based on the production process, and carbon footprint accounting is not performed on process equipment outside the system boundary.

[0079] In this example, the system boundary simply describes the scope of the product carbon footprint calculation, such as the production process. Based on this system boundary information, the inputs and outputs within the system boundary are determined using a life cycle assessment approach. Inputs include raw materials, auxiliary materials, energy and materials for production equipment, and utilities. Outputs include transportation emissions and waste disposal emissions.

[0080] Optionally, data can be obtained in table form. Data items include products, raw materials, auxiliary materials, energy and materials for production equipment, utilities, transportation, wastewater, exhaust gas, and solid waste, specifically including the name, quantity, carbon footprint coefficient, and transportation carbon footprint coefficient of each item. Data is obtained based on specific divisions within the system boundaries. Data on energy consumption, transportation, and waste emissions for various materials and energy sources are derived from the company's actual production, while carbon footprint coefficients for various materials and energy sources are derived from a background database.

[0081] Specifically, energy and materials used for production equipment include coal, diesel, electricity, and natural gas. Utilities include materials and energy consumed by equipment such as air conditioners, lights, fans, and computers within the production workshop. Wastewater, waste gas, and solid waste are treated. For ceramic products, the system boundary studied includes raw material acquisition and product creation—the cradle-to-gate process—and does not consider product use or disposal.

[0082] This embodiment demonstrates a system boundary for carbon footprint calculation of a target product based on the production process. Within the system boundary, the data integrity of the input and output data of each process unit is determined, and the process framework for the target product is divided into multiple modules based on this data integrity. This allows for more precise division of the carbon footprint calculation scope for the target product, improving the controllability of the calculation scope and further enhancing the accuracy of the carbon footprint calculation for the target product.

[0083] The above is a method for calculating the carbon footprint of ceramic products provided by one or more embodiments of the present invention. Based on the same idea, the present invention also provides a corresponding system for calculating the carbon footprint of ceramic products, such as Figure 3 Shown, including:

[0084] The acquisition module is used to establish the process flow framework of the target product based on the input data and output data of each process device in the production process and the sequence of each process device in the production process.

[0085] A construction module is used to determine the data integrity of the input data and output data of each process device. The process flow framework of the target product is divided into multiple modules based on the data integrity. An inventory analysis is performed on multiple modules to obtain the material data related to the carbon footprint in each module.

[0086] The accounting module is used to construct the carbon footprint accounting model corresponding to each module using the life cycle assessment method, and input the material data involving carbon footprint in each module into the carbon footprint accounting model corresponding to the module to perform carbon footprint accounting, and obtain the carbon footprint accounting result of the target product.

[0087] The specific definition of a ceramic product carbon footprint accounting system can be found in the definition of a ceramic product carbon footprint accounting method above, and will not be repeated here. The various modules in the ceramic product carbon footprint accounting system can be implemented in whole or in part through software, hardware, or a combination thereof. The modules can be embedded in or independent of the processor in the computer device in hardware form, or can be stored in the memory of the computer device in software form, so that the processor can call and execute the operations corresponding to the above modules.

[0088] Those skilled in the art will appreciate that all or part of the processes in the embodiment methods can be implemented by instructing the relevant hardware through a computer program, and the computer program can be stored in a non-volatile computer-readable storage medium. When the computer program is executed, it can include the processes of the embodiments of the various methods described. Among them, any reference to memory, storage, database or other media used in the various embodiments provided by the present invention can include at least one of non-volatile and volatile memory. Non-volatile memory can include read-only memory (ROM), magnetic tape, floppy disk, flash memory or optical memory, etc. Volatile memory can include random access memory (RAM) or external cache memory. As an illustration and not limitation, RAM can be in various forms, such as static random access memory (SRAM) or dynamic random access memory (DRAM).

[0089] The technical features of the above embodiments can be combined arbitrarily. In order to make the description concise, not all possible combinations of the technical features in the embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of the present invention.

Claims

1. A method for calculating the carbon footprint of ceramic products, characterized in that: include: Establish a process framework for the target product based on the input data and output data of each process unit in the production process and the sequence of each process unit in the production process; Determining the data integrity of the input data and output data of each process device, dividing the process flow framework of the target product into multiple modules based on the data integrity, performing inventory analysis on the multiple modules, and obtaining material data related to the carbon footprint in each module; The carbon footprint calculation model corresponding to each module is constructed using the life cycle assessment method, and the material data related to the carbon footprint in each module is input into the carbon footprint calculation model corresponding to the module to perform carbon footprint calculation, thereby obtaining the carbon footprint calculation result of the target product.

2. A method for calculating the carbon footprint of ceramic products according to claim 1, characterized in that: Determine the data integrity of the input data and output data of each process device, and divide the process flow framework of the target product into multiple modules based on the data integrity, specifically including: For each of the process devices, determining whether the device is a device without output data; If the device does not produce output data, the device and its upstream device are merged into one module, and during the merging process, the input data and output data of all upstream devices of the device are incorporated into the input data and output data of the module; If the process device is not a process device without output data, determine whether the input data or output data of the process device is missing. If the input data or output data is missing, divide the process device into a data missing module, which includes all process devices with missing input data or output data.

3. The method for calculating the carbon footprint of ceramic products according to claim 1, wherein: The carbon footprint calculation model corresponding to each module in the above modules is constructed as follows: Sum up the carbon footprint of raw materials, production processes, public works, transportation, and waste disposal to get the carbon footprint accounting model corresponding to the module; The carbon footprint of raw materials is calculated as the sum of the product of the consumption of each raw material and the corresponding greenhouse gas emission factor during the production process of the module; The carbon footprint of the production process is calculated as the sum of the product of the material / non-fossil energy consumption of the module during the production process and the corresponding greenhouse gas emission factor, and the sum of the product of the fossil fuel consumption and low calorific value of the module during the production process and the corresponding greenhouse gas emission factor; The utility carbon footprint is calculated as the sum of the product of the utility consumption and the corresponding greenhouse gas emission factor during the production process of the module; The transportation carbon footprint is calculated by multiplying the transportation mass, transportation distance and corresponding transportation greenhouse gas emission factor of the raw materials and auxiliary materials required in the production process of this module; The carbon footprint of the three wastes disposal is calculated as the sum of the mass of each waste generated by the module during the production process multiplied by the greenhouse gas emission factor of the corresponding waste treatment.

4. A method for calculating the carbon footprint of ceramic products according to any one of claims 1 to 3, characterized in that: Before establishing a process flow framework for the target product based on the input data and output data of each process unit in the production process and the sequence of each process unit in the production process, the process further includes: A system boundary for performing carbon footprint calculation on the target product is determined based on the production process, and process equipment outside the system boundary is not subjected to carbon footprint calculation.

5. A ceramic product carbon footprint accounting system, characterized in that: include: An acquisition module is used to establish a process flow framework for a target product based on input data and output data of each process unit in the production process and the sequence of each process unit in the production process; A construction module is used to determine the data integrity of the input data and output data of each process device, divide the process flow framework of the target product into multiple modules based on the data integrity, perform inventory analysis on the multiple modules, and obtain material data related to the carbon footprint in each module; The accounting module is used to construct a carbon footprint accounting model corresponding to each module using the life cycle assessment method, and input the material data related to the carbon footprint in each module into the carbon footprint accounting model corresponding to the module to perform carbon footprint accounting, so as to obtain the carbon footprint accounting result of the target product.

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