Quantification method for carbon footprint of product

Abstract

The invention relates to the technical field of carbon footprint quantification, in particular to a product carbon footprint quantification method, which comprises the following steps: S1, dividing life cycle stages of a target product; s2, collecting primary data and secondary data of each life cycle stage after the target product in the step S1 is divided; s3, according to the primary data and the secondary data collected in the step S2, the carbon footprint of each life cycle stage of the target product is obtained through calculation; and S4, obtaining the carbon footprint of each life cycle stage of the target product in the step S3, and calculating to obtain a carbon footprint quantification result of the target product. According to the method, the carbon footprint quantification result in the processes of upstream and downstream supply chains, physical and chemical changes, cyclic distribution and the like is completely and scientifically completed in a mode of combining universal and special quantification methods, the accuracy, integrity and scientificity of the product carbon footprint quantification result can be improved, and the method has a relatively wide application range.

Description

Technical Field

[0001] The present invention relates to the technical field of carbon footprint quantification, and in particular to a method for quantifying the carbon footprint of a product. Background Art

[0002] With the large-scale development of global industrialization, human activities have generated a large amount of greenhouse gas emissions, causing greenhouse gas emissions to be at the highest level in human history and continue to increase. In addition, due to the differences in industrial development and product production technology between developed and developing countries, developed countries use product carbon footprints to restrict the export of developing countries' products and promote the technological progress of developing countries' products. At present, many departments such as the state, provinces and cities have successively issued policies to promote the construction of domestic product carbon footprint management systems. Many companies and third-party institutions have also carried out product carbon footprint quantification work, and various product carbon footprint certificates have appeared on the market. However, the relevant quantification work is mainly based on the international standard ISO 14067-2018. However, this standard does not have a clear set of quantification methods, and the carbon footprint quantification results are one of the most important data in product carbon footprint research and disclosure, and are also the core indicators for evaluating the carbon footprint performance of the product. Therefore, the importance of completely and scientifically quantifying the product carbon footprint results is self-evident.

[0003] At present, the product carbon footprint research or disclosure often uses the life cycle inventory method or directly uses professional life cycle analysis software. The above methods use general quantification methods and require pre-processing of data that meets the requirements. They cannot cope with the quantification of complex product carbon footprints and have a high threshold for users. In addition, the above methods do not consider the carbon footprint burden distribution of renewable material cycles, and often calculate the carbon footprint of renewable materials by default as zero. All of the above will lead to deviations and non-reproducibility of product carbon footprint quantification results, and affect the scientific nature of product carbon footprint quantification, thereby affecting the scope of application of product carbon footprint quantification results. Summary of the invention

[0004] The technical problem to be solved by the present invention is: in order to solve the technical problem that the existing product carbon footprint quantification method is unclear, the present invention provides a product carbon footprint quantification method, which can improve the accuracy, scientificity and scope of application of the product carbon footprint quantification results by clarifying the carbon footprint quantification results of each life cycle stage of the product.

[0005] The technical solution adopted by the present invention to solve the technical problem is: a method for quantifying the carbon footprint of a product, comprising the following steps:

[0006] S1. Divide the life cycle stages of the target product;

[0007] S2, collecting primary data and secondary data of each life cycle stage after the target product in step S1 has been divided;

[0008] S3. Calculate the carbon footprint of each life cycle stage of the target product based on the primary data and secondary data collected in step S2;

[0009] S4. Obtain the carbon footprint of each life cycle stage of the target product in step S3, and calculate and obtain a quantitative result of the carbon footprint of the target product.

[0010] Therefore, by clarifying the carbon footprint quantification methods of each life cycle stage of the target product, the quantification methods of several life cycle processes, and the carbon footprint burden allocation method of the renewable material cycle, a combination of general and special quantification methods is used to completely and scientifically complete the carbon footprint quantification results of upstream and downstream supply chains, physical and chemical changes, and circular distribution processes. This can improve the accuracy, completeness and scientificity of the product carbon footprint quantification results and has a wider range of applications.

[0011] Furthermore, step S1 includes the following scenarios: Scenario 1: the life cycle stages of the target product include: raw material stage (RM), production stage (MFG), distribution stage (DIST), use stage (USE) and end of life stage (EOL); Scenario 2: the life cycle stages of the target product include: raw material stage (RM), production stage (MFG), distribution stage (DIST) and end of life stage (EOL); Scenario 3: the life cycle stages of the target product include: raw material stage (RM), production stage (MFG).

[0012] Furthermore, in step S2, the primary data include: quantitative values ​​of processes or activities obtained by direct measurement or calculation based on direct measurement values; the secondary data include: data from databases, published literature, default emission factors from national databases, and calculated data.

[0013] Furthermore, step S3 includes the following steps:

[0014] S3-1. Calculate the carbon footprint of the target product at the raw material stage;

[0015] S3-2. Calculate the carbon footprint of the target product during the production phase;

[0016] S3-3. Calculate the carbon footprint of the target product during the distribution phase;

[0017] S3-4. Calculate the carbon footprint of the target product during its use phase;

[0018] S3-5. Calculate the carbon footprint of the target product at the end-of-life stage.

[0019] Furthermore, the carbon footprint quantification result of the raw material stage of the target product CFP RM The calculation formula is:

[0020]

[0021] Among them: CFP RM The unit is kgCO2eq, E i Indicates the proportion of recycled materials in the i-th material, M RM,r,i Indicates the consumption of the i-th material in the raw material stage, in kg, CFP V,i represents the carbon footprint quantified from the raw material acquisition and pretreatment of the i-th material, in kgCO2eq, A i The specific allocation coefficient for the carbon footprint burden of the i-th material between the two life cycles of supplying recycled materials and using recycled materials, CFP R,i It represents the quantitative result of the carbon footprint of the recycled material recycling process in the i-th material, in kgCO2eq, Q i The ratio coefficient of the i-th material category that can be converted from virgin materials into recycled materials, D RM,r,i,j Indicates the transportation distance of the jth mode of transportation of the i-th material in the raw material stage, in km, CFP T,j It represents the quantitative result of carbon footprint per ton-kilometer of the j-th mode of transport, in kgCO2eq / tkm;

[0022] Quantification results of carbon footprint of target product production stage CFP MFG The calculation formula is:

[0023] CFP MFG =C MFG,e +C MFG,B,e +C MFG,P / C,d / a +C MFG,w ;

[0024] Among them: CFP MFG The unit is kgCO2eq, C MFG,e It represents the carbon footprint of energy acquisition and pre-processing used in the production stage, in kgCO2eq, C MFG,B,e It indicates the direct greenhouse gas emissions caused by the combustion of combustible energy in the production stage, in kgCO2eq, C MFG,P / C,d / a It indicates the direct emission or absorption of greenhouse gases caused by physical and chemical changes other than energy combustion during the production stage, in kgCO2eq, C MFG,w It represents the quantitative result of the carbon footprint of waste treatment generated during the production stage, in kgCO2eq;

[0025] Quantification results of carbon footprint of target product distribution stage CFP DIST The calculation formula is:

[0026] CFP DIST =C DIST,T,p +C DIST,e +C DIST,B,e +C DIST,P / C,d / a +C DIST,w ;

[0027] Among them: CFP DIST The unit is kgCO2eq, C DIST,T,p It represents the quantitative result of the carbon footprint of the target product transportation in the distribution stage, in kgCO2eq, C DIST,e The carbon footprint of energy acquisition and pre-processing used in the distribution phase is quantified in kgCO2eq, C DIST,B,e It indicates the direct greenhouse gas emissions caused by the combustion of combustible energy in the distribution stage, in kgCO2eq, C DIST,P / C,d / a It indicates the direct emission or absorption of greenhouse gases caused by physical and chemical changes other than energy combustion in the distribution stage, in kgCO2eq, C DIST,w It represents the quantitative result of the carbon footprint of waste treatment generated in the distribution stage, in kgCO2eq;

[0028] Quantification results of carbon footprint of target product in use phase CFP USE The calculation formula is:

[0029] CFP USE =C USE,T,p +C USE,e +C USE,B,e +C USE,P / C,d / a +C USE,w ;

[0030] Among them: CFP USE The unit is kgCO2eq, C USE,T,p It represents the quantitative result of the carbon footprint of the target product transportation in the use phase, in kgCO2eq, C USE,e It represents the quantitative result of the carbon footprint of energy acquisition and pre-processing used in the use phase, in kgCO2eq, C USE,B,e It indicates the direct greenhouse gas emissions caused by the combustion of combustible energy during the use phase, in kgCO2eq, C USE,P / C,d / a It indicates the direct emission or absorption of greenhouse gases caused by physical and chemical changes other than energy combustion during the use phase, in kgCO2eq, C USE,w It represents the quantitative result of the carbon footprint of waste treatment generated during the use phase, in kgCO2eq;

[0031] Quantification results of carbon footprint at the end of life of target products CFP EoL The calculation formula is:

[0032]

[0033] Among them: CFP EoL The unit is kgCO2eq, M EOL,w,k It represents the treatment amount of the kth product or waste at the end of life stage, in kg, D EOL,w,k,j The transport distance of the kth product or waste at the end of life stage by the jth mode of transport, in km, C EoL,w1 The carbon footprint of products or waste at the end of life containing materials that cannot generate energy recovery is quantified in kgCO2eq, C EoL,w2 The carbon footprint of a product or waste product at the end of its life cycle containing materials that can generate energy recovery is quantified in kgCO2eq, C EoL,w3 Represents the quantified carbon footprint of a product or waste at the end of its life that does not contain recyclable materials, expressed in kgCO2eq.

[0034] Furthermore, the carbon footprint of energy acquisition and pretreatment used in the target product life cycle stage is quantified. PHASE,e The calculation formula is:

[0035]

[0036] Among them: PHASE represents the five life cycle stages of RM, MFG, DIST, USE, and EOL target products. PHASE,e The unit is kgCO2eq, M PHASE,e,i Indicates the consumption or generation of the i-th energy in the target product life cycle stage, in kg / kwh / MJ, CFP e,i represents the carbon footprint quantification result of the i-th energy acquisition and preprocessing, in kgCO2eq, D PHASE,e,i,j It represents the transportation distance of the j-th mode of transportation of the i-th energy in the life cycle stage of the Mubi'an product, in km.

[0037] Furthermore, the quantified results of the transportation carbon footprint of the target product life cycle are C PHASE,T,p The calculation formula is:

[0038]

[0039] Where: C PHASE,T,p The unit is kgCO2eq, M PHASE,T,p Indicates the transportation volume of the target product in the life cycle stage, in kg, DPHASE,T,p,j It represents the transportation distance of the jth mode of transportation in the target product life cycle stage, in km.

[0040] Furthermore, the direct greenhouse gas emissions caused by the combustion of combustible energy during the life cycle of the target product are C PHASE,B,e The calculation formula is:

[0041]

[0042] Where: C PHASE,B,e The unit is kgCO2eq, M PHASE,B,e,n It represents the consumption of the nth combustible energy in the target product life cycle stage, in t / 10 4 Nm 3 , NVC B,n It represents the average lower calorific value of the nth combustible energy source. For solid or liquid fuels, the unit is GJ / t, and for gaseous fuels, the unit is GJ / 10 4 Nm 3 , C.C. B,n Indicates the carbon content per unit calorific value of the nth combustible energy, in units of tC / GJ, OF B,n Indicates the carbon oxidation rate of the nth combustible energy source, in %, It represents the 100-year global warming potential of the greenhouse gas carbon dioxide.

[0043] Furthermore, C MFG,P / C,d / a , C DIST,P / C,d / a and C USE,P / C,d / a This includes the following situations:

[0044] Scenario A:

[0045] The calculation formula for direct greenhouse gas emissions or absorption caused by physical changes other than energy combustion is:

[0046] C PHASE,P,d / a =∑ m (M PHASE,P,d / a,m ·GWP m );

[0047] Where: C PHASE,P,d / a Indicates the direct greenhouse gas emissions or absorption caused by physical changes other than energy combustion during the target product life cycle, in kgCO2eq, M PHASE,P,d / a,m Indicates the direct emission or absorption of the mth greenhouse gas caused by physical changes other than energy combustion during the life cycle of the target product, in kg, GWP m represents the 100-year global warming potential of the mth greenhouse gas;

[0048] Scenario B:

[0049] Product 1: Quantification of carbon footprint of direct emissions of perfluorocarbons produced by anode effect during the production process of electrolytic aluminum products C MFG,C,d,Al The calculation formula is:

[0050]

[0051] Where: C MFG,C,d,Al The unit is kgCO2eq, M MFG,C,d,Al It represents the electrolytic aluminum output in the target product production stage, in t, T AEM It indicates the duration of anode effect of each cell per day in the midpoint unloading prebaked cell during the production stage of the target product, in minutes. It represents the empirical coefficient of direct emission of carbon tetrafluoride produced by the anode effect of electrolytic aluminum during the production stage of the target product. Indicates the 100-year global warming potential of the target product, carbon tetrafluoride, a greenhouse gas. It represents the empirical coefficient of direct emission of carbon hexafluoride produced by anode effect of electrolytic aluminum in the production stage of target products. Indicates the 100-year global warming potential of the target product greenhouse gas carbon hexafluoride;

[0052] Product 2: Quantification of carbon footprint of direct absorption of carbon dioxide produced by carbonization reaction during the use of concrete products C USE,C,a,concrete The calculation formula is:

[0053]

[0054] Where: C USE,C,a,concrete The unit is kgCO2eq, M USE,C,a,concrete Indicates the amount of concrete used during the target product use phase, in m 3 , R cement Indicates the cement content in the concrete used for the target product, in kg / m 3 , R CaO Indicates the mass percentage of active calcium oxide in cement in concrete used in the target product, in wt%, DC k It indicates the diffusion coefficient of carbon dioxide in the concrete used for the target product under specific exposure conditions, in mm 2 / a, T represents the actual service life of the concrete used in the target product, in years, TH concrete Indicates the actual thickness of the concrete component used in the target product, in mm.

[0055] Furthermore, the carbon footprint of products or waste at the end of life that do not generate energy recovery materials is quantified. EoL,w1 The calculation formula is:

[0056]

[0057] Where: R k represents the proportion of the kth product or waste that is properly collected and treated, A w,k The specific allocation coefficient for the kth product or waste to distribute the carbon footprint burden between the two life cycles of supplying recycled materials and using recycled materials, CFP w,k It represents the carbon footprint quantification result of the proper collection and treatment process of the k-th product or waste, in kgCO2eq, A k,x R represents the specific allocation coefficient for the carbon footprint burden of the xth material in the kth product or waste between the two life cycles of supply and use. k,x represents the specific recovery rate of the xth material in the kth product or waste that is properly collected and treated, C k,x Indicates the mass percentage of the xth material in the kth product or waste, in wt%, CFP A,k,x The carbon footprint of the additional recycling process required to produce recycled materials from the xth material in the kth product or waste is quantified in kgCO2eq, CFP k,x The carbon footprint of the acquisition and pre-processing of the assumed virgin material that the xth material can replace in the kth product or waste is quantified in kgCO2eq, Q k,x The coefficient that represents the proportion of the xth material in the kth product or waste that can be converted into virgin material, CFP w,nc,k It represents the carbon footprint quantification result of the k-th product or waste that is not properly collected and treated, in kgCO2eq, R k,nc,x represents the specific recovery rate of the kth product or waste where the xth material is not properly collected and treated;

[0058] Quantification of the carbon footprint of products or waste at the end of their life that contain materials that generate energy recovery C EoL,w2 The calculation formula is:

[0059]

[0060] Where: B represents the distribution coefficient of the energy recovery process, R k,y represents the specific recovery rate of the kth product or waste in which the yth material is properly collected and treated, C k,y Indicates the weight percentage of the yth material in the kth product or waste, in wt%, CFP k,y It represents the quantitative result of carbon footprint in the energy recovery process of the yth material in the kth product or waste, in kgCO2eq;

[0061] Quantification of the carbon footprint of products or waste at the end of life that do not contain recyclable materials C EoL,w3 The calculation formula is:

[0062]

[0063] Where: C k,z Indicates the weight percentage of the zth material in the kth product or waste, in wt%, CFP k,z It represents the quantified result of the carbon footprint of the zth material in the kth product or waste during its disposal (such as landfill), in kgCO2eq.

[0064] Furthermore, the carbon footprint quantification result of the target product CFP P The calculation formula is:

[0065] CFP P =CFP RM +CFP MFG +CFP DIST +CFP USE +CFP EoL ;

[0066] Among them: CFP P The unit is kgCO2eq.

[0067] Compared with the prior art, the present invention has the following beneficial effects:

[0068] By clarifying the carbon footprint quantification methods for each life cycle stage of the target product, the quantification methods for several life cycle processes, and the carbon footprint burden allocation method for the renewable material cycle, a combination of general and special quantification methods is used to completely and scientifically complete the carbon footprint quantification results of upstream and downstream supply chains, physical and chemical changes, and circular distribution processes. This can improve the accuracy, completeness, and scientificity of the product carbon footprint quantification results and has a wider range of applications. BRIEF DESCRIPTION OF THE DRAWINGS

[0069] The present invention is further described below in conjunction with the accompanying drawings and embodiments.

[0070] Figure 1 A flow chart of a method for quantifying a product carbon footprint of the present invention;

[0071] Figure 2 This is a flow chart of step S3 of the present invention. DETAILED DESCRIPTION

[0072] The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, which only illustrate the basic structure of the present invention in a schematic manner, and therefore only show the components related to the present invention.

[0073] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In addition, features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, unless otherwise specified, "multiple" means two or more.

[0074] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0075] like Figure 1 to Figure 2 The figure is the best embodiment of the present invention. The method for quantifying the carbon footprint of a product in this embodiment includes the following steps:

[0076] S1. Divide the life cycle stages of the target product;

[0077] S2, collecting primary data and secondary data of each life cycle stage after the target product in step S1 has been divided;

[0078] S3. Calculate the carbon footprint of each life cycle stage of the target product based on the primary data and secondary data collected in step S2;

[0079] S4. Obtain the carbon footprint of each life cycle stage of the target product in step S3, and calculate and obtain a quantitative result of the carbon footprint of the target product.

[0080] Therefore, by clarifying the carbon footprint quantification methods of each life cycle stage of the target product, the quantification methods of several life cycle processes, and the carbon footprint burden allocation method of the renewable material cycle, a combination of general and special quantification methods is used to completely and scientifically complete the carbon footprint quantification results of upstream and downstream supply chains, physical and chemical changes, and circular distribution processes. This can improve the accuracy, completeness and scientificity of the product carbon footprint quantification results and has a wider range of applications.

[0081] In this embodiment, step S1 includes the following scenarios: Scenario 1: the life cycle stages of the target product include: raw material stage (RM), production stage (MFG), distribution stage (DIST), use stage (USE) and end of life stage (EOL); Scenario 2: the life cycle stages of the target product include: raw material stage (RM), production stage (MFG), distribution stage (DIST) and end of life stage (EOL); Scenario 3: the life cycle stages of the target product include: raw material stage (RM), production stage (MFG).

[0082] In this embodiment, in step S2, primary data include: quantitative values ​​of processes or activities obtained by direct measurement or calculation based on direct measurement values; secondary data include: data from databases, published literature, default emission factors from national databases and calculated data. For example: primary data include: bill of materials (BOM), energy consumption, product, waste generation, transportation distance, transportation mode; secondary data include: unit process or secondary data set of process, parameter default values.

[0083] In this embodiment, step S3 includes the following steps:

[0084] S3-1. Calculate the carbon footprint of the target product at the raw material stage;

[0085] S3-2. Calculate the carbon footprint of the target product during the production phase;

[0086] S3-3. Calculate the carbon footprint of the target product during the distribution phase;

[0087] S3-4. Calculate the carbon footprint of the target product during its use phase;

[0088] S3-5. Calculate the carbon footprint of the target product at the end-of-life stage.

[0089] In this embodiment, the carbon footprint quantification result CFP of the target product raw material stage RM The calculation formula is:

[0090]

[0091] Among them: CFP RMThe unit is kgCO2eq, E i Indicates the proportion of recycled materials in the i-th material, M RM,r,i Indicates the consumption of the i-th material in the raw material stage, in kg, CFP V,i represents the carbon footprint quantified from the raw material acquisition and pretreatment of the i-th material, in kgCO2eq, A i The specific allocation coefficient for the carbon footprint burden of the i-th material between the two life cycles of supplying recycled materials and using recycled materials, CFP R,i It represents the quantitative result of the carbon footprint of the recycled material recycling process in the i-th material, in kgCO2eq, Q i The ratio coefficient of the i-th material category that can be converted from virgin materials into recycled materials, D RM,r,i,j Indicates the transportation distance of the jth mode of transportation of the i-th material in the raw material stage, in km, CFP T,j It represents the quantitative result of carbon footprint per ton-kilometer of the j-th mode of transport, in kgCO2eq / tkm;

[0092] Quantification results of carbon footprint of target product production stage CFP MFG The calculation formula is:

[0093] CFP MFG =C MFG,e +C MFG,B,e +C MFG,P / C,d / a +C MFG,w ;

[0094] Among them: CFP MFG The unit is kgCO2eq, C MFG,e It represents the carbon footprint of energy acquisition and pre-processing used in the production stage, in kgCO2eq, C MFG,B,e It indicates the direct greenhouse gas emissions caused by the combustion of combustible energy in the production stage (converted into carbon dioxide equivalent), in kgCO2eq, C MFG,P / C,d / a It indicates the direct greenhouse gas emissions or absorption caused by physical and chemical changes other than energy combustion during the production stage (converted into carbon dioxide equivalent), in kgCO2eq, C MFG,w It represents the quantitative result of the carbon footprint of waste treatment generated during the production stage, in kgCO2eq;

[0095] Quantification results of carbon footprint of target product distribution stage CFP DIST The calculation formula is:

[0096] CFP DIST =C DIST,T,p +C DIST,e +C DIST,B,e+C DIST,P / C,d / a +C DIST,w ;

[0097] Among them: CFP DIST The unit is kgCO2eq, C DIST,T,p It represents the quantitative result of the carbon footprint of the target product transportation in the distribution stage, in kgCO2eq, C DIST,e The carbon footprint of energy acquisition and pre-processing used in the distribution phase is quantified in kgCO2eq, C DIST,B,e It indicates the direct greenhouse gas emissions caused by the combustion of combustible energy in the distribution stage (converted into carbon dioxide equivalent), in kgCO2eq, C DIST,P / C,d / a It indicates the direct greenhouse gas emissions or absorption caused by physical and chemical changes other than energy combustion in the distribution stage (converted into carbon dioxide equivalent), with the unit of kgCO2eq, C DIST,w It represents the quantitative result of the carbon footprint of waste treatment generated in the distribution stage, in kgCO2eq;

[0098] Quantification results of carbon footprint of target product in use phase CFP USE The calculation formula is:

[0099] CFP USE =C USE,T,p +C USE,e +C USE,B,e +C USE,P / C,d / a +C USE,w ;

[0100] Among them: CFP USE The unit is kgCO2eq, C USE,T,p It represents the quantitative result of the carbon footprint of the target product transportation in the use phase, in kgCO2eq, C USE,e It represents the carbon footprint of energy acquisition and pre-processing used in the use phase, in kgCO2eq, C USE,B,e It indicates the direct greenhouse gas emissions caused by the combustion of combustible energy during the use phase (converted into carbon dioxide equivalent), in kgCO2eq, C USE,P / C,d / a It indicates the direct emission or absorption of greenhouse gases caused by physical and chemical changes other than energy combustion during the use phase (converted into carbon dioxide equivalent), in kgCO2eq, C USE,w It represents the quantitative result of the carbon footprint of waste treatment generated during the use phase, in kgCO2eq;

[0101] Quantification results of carbon footprint at the end of life of target products CFP EoL The calculation formula is:

[0102]

[0103] Among them: CFP EoL The unit is kgCO2eq, M EOL,w,k It represents the treatment amount of the kth product or waste at the end of life stage, in kg, D EOL,w,k,j The transport distance of the kth product or waste at the end of life stage by the jth mode of transport, in km, C EoL,w1 The carbon footprint of products or waste at the end of life containing materials that cannot generate energy recovery is quantified in kgCO2eq, C EoL,w2 The carbon footprint of a product or waste product at the end of its life cycle containing materials that can generate energy recovery is quantified in kgCO2eq, C EoL,w3 Represents the quantified carbon footprint of a product or waste at the end of its life that does not contain recyclable materials, expressed in kgCO2eq.

[0104] In this embodiment, the carbon footprint quantification result C of energy acquisition and preprocessing used in the target product life cycle stage is PHASE,e The calculation formula is:

[0105]

[0106] Among them: PHASE represents the five life cycle stages of RM, MFG, DIST, USE, and EOL target products. PHaSE,e The unit is kgCO2eq, M PHASE,e,i Indicates the consumption or generation of the i-th energy in the target product life cycle stage, in kg / kwh / MJ, CFP e,i represents the carbon footprint quantification result of the i-th energy acquisition and preprocessing, in kgCO2eq, D PHASE,e,i,j It represents the transportation distance of the j-th mode of transportation of the i-th energy in the life cycle stage of the Mubi'an product, in km.

[0107] In this embodiment, the quantified result of the transportation carbon footprint of the target product during its life cycle is C PHASE,T,p The calculation formula is:

[0108]

[0109] Where: C PHASE,T,p The unit is kgCO2eq, M pHASE,T,p Indicates the transportation volume of the target product in the life cycle stage, in kg, D PHASE,T,p,j It represents the transportation distance of the jth mode of transportation in the target product life cycle stage, in km.

[0110] In this embodiment, the direct greenhouse gas emissions caused by the combustion of combustible energy during the target product life cycle stage are C PHASE,B,e The calculation formula is:

[0111]

[0112] Where: C PHASE,B,e The unit is kgCO2eq, M PHASE,B,e,n It represents the consumption of the nth combustible energy in the target product life cycle stage, in t / 10 4 Nm 3 , NVC B,n It represents the average lower calorific value of the nth combustible energy source. For solid or liquid fuels, the unit is GJ / t, and for gaseous fuels, the unit is GJ / 10 4 Nm 3 , C.C. B,n Indicates the carbon content per unit calorific value of the nth combustible energy, in units of tC / GJ, OF B,n Indicates the carbon oxidation rate of the nth combustible energy source, in %, Indicates the 100-year global warming potential of greenhouse gas carbon dioxide. Specifically, E i 、M RM,r,i All are derived from corporate statistical reports, CFP V,i Derived from professional life cycle database or provided by suppliers, A i Derived from relevant standards and technical guidelines, CFP R,i Derived from professional life cycle database or provided by suppliers, Q i , D RM,r,i,j All are derived from enterprise statistical reports; M EOL,w,k , D EOL,w,k,j All are derived from enterprise statistical reports; M PHASE,e,i Derived from corporate statistical reports, CFP e,i Derived from professional life cycle database or provided by suppliers, D PHASE,e,i,j Derived from enterprise statistical reports; M PHAsE,T,p , D PHAsE,T,p,j All are derived from enterprise statistical reports; M PHASE,B,e,n Derived from enterprise statistical reports, NVC B,n 、CC B,n All are derived from enterprise statistical reports or default values ​​from China Energy Statistical Yearbook. B,n Derived from the default values ​​of China Energy Statistical Yearbook, Derived from the latest values ​​released by IPCC.

[0113] For example, CFP R,i Can represent the recycling process whereby metal scrap is sorted and remelted into secondary metal.

[0114] It should be noted that: 1. By default, all materials’ E i All are 0, unless evidence of specific values ​​based on supply chain tracing is provided in the carbon footprint study of the material;

[0115] 2. Since the end-of-life quantitative calculation formulas for waste and target products are the same, C MFG,w The calculation formula of carbon footprint results is similar to CFP MFG Consistent, C DIST,w The calculation formula of carbon footprint results is similar to CFP DIST Consistent, C USE,w The calculation formula of carbon footprint results is similar to CFP USE However, the quantitative structure of the carbon footprint of the end-of-life phase of waste should be attributed to the phase in which the waste is generated;

[0116] 3. The average lower calorific value, carbon content per unit calorific value, and carbon oxidation rate should use the measured values ​​of combustible energy. If there are no measured values, the default values ​​in the China Energy Statistical Yearbook or relevant standards can be used;

[0117] 4. The 100-year global warming potential of greenhouse gases should use the latest value released by the United Nations Intergovernmental Panel on Climate Change (IPCC).

[0118] In this embodiment, C MFG,P / C,d / a , C DIST,P / C,d / a and C USE,P / C,d / a This includes the following situations:

[0119] Scenario A:

[0120] The calculation formula for direct greenhouse gas emissions or absorption caused by physical changes other than energy combustion is:

[0121] C PHASE,P,d / a =∑ m (M PHASE,P,d / a,m ·GWP m );

[0122] Where: C PHASE,P,d / a Indicates the direct greenhouse gas emissions or absorption caused by physical changes other than energy combustion during the target product life cycle, in kgCO2eq, M PHASE,P,d / a,m Indicates the direct emission or absorption of the mth greenhouse gas caused by physical changes other than energy combustion during the life cycle of the target product, in kg, GWP m represents the 100-year global warming potential of the mth greenhouse gas;

[0123] Scenario B:

[0124] Product 1: Quantification of carbon footprint of direct emissions of perfluorocarbons produced by anode effect during the production process of electrolytic aluminum products C MFG,C,d,Al The calculation formula is:

[0125]

[0126] Where: C MFG,C,d,Al The unit is kgCO2eq, M MFG,C,d,Al It represents the electrolytic aluminum output in the target product production stage, in t, T AEM It indicates the duration of anode effect of each cell per day in the midpoint unloading prebaked cell during the production stage of the target product, in minutes. It represents the empirical coefficient of direct emission of carbon tetrafluoride produced by the anode effect of electrolytic aluminum during the production stage of the target product. Indicates the 100-year global warming potential of the target product, carbon tetrafluoride, a greenhouse gas. It represents the empirical coefficient of direct emission of carbon hexafluoride produced by anode effect of electrolytic aluminum in the production stage of target products. Indicates the 100-year global warming potential of the target product greenhouse gas carbon hexafluoride;

[0127] Product 2: Quantification of carbon footprint of direct absorption of carbon dioxide produced by carbonization reaction during the use of concrete products C USE,C,a,concrete The calculation formula is:

[0128]

[0129] Where: C USE,C,a,concrete The unit is kgCO2eq, M USE,C,a,concrete Indicates the amount of concrete used during the target product use phase, in m 3 , R cement Indicates the cement content in the concrete used for the target product, in kg / m 3 , R CaO Indicates the mass percentage of active calcium oxide in cement in concrete used in the target product, in wt%, DC k It indicates the diffusion coefficient of carbon dioxide in the concrete used for the target product under specific exposure conditions, in mm 2 / a, T represents the actual service life of the concrete used in the target product, in years, TH concrete Indicates the actual thickness of the concrete component used in the target product, in mm. PHASE,P,d / a,m Source: Corporate Statistics, GWP m Derived from the latest value released by IPCC; M MGG,C,d,Al 、T AEM All are derived from enterprise statistical reports. All are derived from relevant standards and technical guidelines. Derived from the latest value released by IPCC; M USE,C,a,concrete , R cement , R CaO All are derived from enterprise statistical reports, DC k Derived from relevant standards and technical guidelines, T is derived from relevant standards and technical guidelines, TH is concrete Derived from enterprise statistical reports.

[0130] It should be noted that: 1. Due to the differences in physical and chemical changes other than energy combustion of different products, and the physical and chemical changes other than energy combustion of the same product at different life cycle stages, the quantification method of this part cannot be expressed by the agreed quantification method (i.e., divided into situation A and situation B for calculation);

[0131] 2. The calculation formula for the quantitative results of carbon footprint of direct greenhouse gas emissions or absorption caused by chemical changes other than energy combustion needs to be determined according to the specific situation, and refer to the national, industry, local standards or technical documents related to the specific product;

[0132] 3. In case A, the greenhouse gas emissions can come from the consumption of a certain protective gas or the loss of a certain product, depending on the specific situation. The absorption of greenhouse gases is therefore expressed as a negative value.

[0133] In this example, the carbon footprint quantification result C of the end-of-life of products or waste that cannot generate energy recovery materials is EoL,w1 The calculation formula is:

[0134]

[0135] Where: R k represents the proportion of the kth product or waste that is properly collected and treated, A w,k The specific allocation coefficient for the kth product or waste to distribute the carbon footprint burden between the two life cycles of supplying recycled materials and using recycled materials, CFP w,k It represents the carbon footprint quantification result of the proper collection and treatment process of the k-th product or waste, in kgCO2eq, A k,x R represents the specific allocation coefficient for the carbon footprint burden of the xth material in the kth product or waste between the two life cycles of supply and use. k,x represents the specific recovery rate of the xth material in the kth product or waste that is properly collected and treated, C k,x Indicates the mass percentage of the xth material in the kth product or waste, in wt%, CFP A,k,xThe carbon footprint of the additional recycling process required to produce recycled materials from the xth material in the kth product or waste is quantified in kgCO2eq, CFP k,x The carbon footprint of the acquisition and pre-processing of the assumed virgin material that the xth material can replace in the kth product or waste is quantified in kgCO2eq, Q k,x The coefficient that represents the proportion of the xth material in the kth product or waste that can be converted into virgin material, CFP w,nc,k It represents the carbon footprint quantification result of the k-th product or waste that is not properly collected and treated, in kgCO2eq, R k,nc,x represents the specific recovery rate of the kth product or waste where the xth material is not properly collected and treated;

[0136] Quantification of the carbon footprint of products or waste at the end of their life that contain materials that generate energy recovery C EoL,w2 The calculation formula is:

[0137]

[0138] Where: B represents the distribution coefficient of the energy recovery process, R k,y represents the specific recovery rate of the kth product or waste in which the yth material is properly collected and treated, C k,y Indicates the weight percentage of the yth material in the kth product or waste, in wt%, CFP k,y It represents the quantitative result of carbon footprint in the energy recovery process of the yth material in the kth product or waste, in kgCO2eq;

[0139] Quantification of the carbon footprint of products or waste at the end of life that do not contain recyclable materials C EoL,w3 The calculation formula is:

[0140]

[0141] Where: C k,z Indicates the weight percentage of the zth material in the kth product or waste, in wt%, CFP k,z It represents the carbon footprint quantified by the disposal process (such as landfill) of the zth material in the kth product or waste, in kgCO2eq. Specifically, R k Derived from enterprise statistical reports, A w,k Derived from relevant standards and technical guidelines, CFP w,k Derived from professional life cycle database or provided by suppliers, A k,x Derived from relevant standards and technical guidelines, R k,x , C k,x All are derived from corporate statistical reports, CFPA,k,x , CFP k,x All are from professional life cycle databases or provided by suppliers. k,x Derived from corporate statistical reports, CFP w,nc,k Derived from professional life cycle database or provided by suppliers, R k,nc,x Derived from enterprise statistical reports; B, R k,y , C k,y All are derived from corporate statistical reports, CFP k,y Derived from professional life cycle database or provided by suppliers; C k,z Derived from corporate statistical reports, CFP k,z Derived from professional life cycle database or provided by suppliers.

[0142] For example, CFP A,k,x Can be expressed as a recycling process whereby metal scrap in the shell is sorted and remelted into secondary metal; CFP k,z The waste disposal process is landfill.

[0143] In this embodiment, the carbon footprint quantification result CFP of the target product P The calculation formula is:

[0144] CFP P =CFP RM +CFP MFG +CFP DIST +CFP USE +CFP EoL ;

[0145] Among them: CFP P The unit is kgCO2eq.

[0146] In summary, the present invention clarifies the carbon footprint quantification methods of each life cycle stage of the target product, the quantification methods of several life cycle processes, and the carbon footprint burden allocation method of the renewable material cycle. It adopts a combination of general and special quantification methods to completely and scientifically complete the carbon footprint quantification results of upstream and downstream supply chains, physical and chemical changes, and circular distribution processes. It can improve the accuracy, completeness and scientificity of the product carbon footprint quantification results and has a relatively wide range of applications.

[0147] The above description is based on the ideal embodiment of the present invention. Through the above description, relevant personnel can make various changes and modifications without departing from the technical concept of the present invention. The technical scope of the present invention is not limited to the content in the specification, and its technical scope must be determined according to the scope of the claims.

Claims

1. A method for quantifying the carbon footprint of a product, characterized in that: The following steps are involved: S1. Divide the life cycle stages of the target product; S2, collecting primary data and secondary data of each life cycle stage after the target product in step S1 has been divided; S3. Calculate the carbon footprint of each life cycle stage of the target product based on the primary data and secondary data collected in step S2; S4. Obtain the carbon footprint of each life cycle stage of the target product in step S3, and calculate and obtain a quantitative result of the carbon footprint of the target product.

2. The method for quantifying the carbon footprint of a product according to claim 1, characterized in that: The step S1 includes the following situations: Scenario 1: The target product life cycle stages include: Raw material stage (RM), production stage (MFG), distribution stage (DIST), use stage (USE) and end of life stage (EOL); Scenario 2: The target product life cycle stages include: Raw material stage (RM), production stage (MFG), distribution stage (DIST) and end of life stage (EOL); Scenario 3: The target product life cycle stages include: Raw materials stage (RM), production stage (MFG).

3. The method for quantifying the carbon footprint of a product according to claim 1, characterized in that: In step S2, the primary data includes: A quantitative value of a process or activity obtained by direct measurement or calculation based on direct measurements; Secondary data include: Data from databases, published literature, default emission factors from national databases and calculated data.

4. The method for quantifying the carbon footprint of a product according to claim 1, characterized in that: The step S3 comprises the following steps: S3-1. Calculate the carbon footprint of the target product at the raw material stage; S3-2. Calculate the carbon footprint of the target product during the production phase; S3-3. Calculate the carbon footprint of the target product during the distribution phase; S3-4. Calculate the carbon footprint of the target product during its use phase; S3-5. Calculate the carbon footprint of the target product at the end-of-life stage.

5. The method for quantifying the carbon footprint of a product according to claim 1, characterized in that: Quantification results of carbon footprint of target product at raw material stage CFPR M The calculation formula is: Among them: CFP RM The unit is kgCO2eq, E i Indicates the proportion of recycled materials in the i-th material, M RM，r，i Indicates the consumption of the i-th material in the raw material stage, in kg, CFP V，i represents the carbon footprint quantified from the raw material acquisition and pretreatment of the i-th material, in kgCO2eq, A i The specific allocation coefficient for the carbon footprint burden of the i-th material between the two life cycles of supplying recycled materials and using recycled materials, CFP R，i It represents the quantitative result of the carbon footprint of the recycled material recycling process in the i-th material, in kgCO2eq, Q i The ratio coefficient of the i-th material category that can be converted from virgin materials into recycled materials, D RM，r，i，j Indicates the transportation distance of the jth mode of transportation of the i-th material in the raw material stage, in km, CFP T，j It represents the quantitative result of carbon footprint per ton-kilometer of the j-th mode of transport, in kgCO2eq / tkm; Quantification results of carbon footprint of target product production stage CFP MFG The calculation formula is: CFP MFG =C MFG，e +C MFG,B，e +C MFG,P / C,d / a +C MFG,w ; Among them: CFC MFG The unit is kgCO2eq, C MFG，e It represents the carbon footprint of energy acquisition and pre-processing used in the production stage, in kgCO2eq, C MFG，B，e It indicates the direct greenhouse gas emissions caused by the combustion of combustible energy in the production stage, in kgCO2eq, C MFG,P / C,d / a It indicates the direct emission or absorption of greenhouse gases caused by physical and chemical changes other than energy combustion during the production stage, in kgCO2eq, C MFG,w It represents the quantitative result of the carbon footprint of waste treatment generated during the production stage, in kgCO2eq; Quantification results of carbon footprint of target product distribution stage CFPD IST The calculation formula is: CFP DIST =C DIST,T，p +C DIST,e +C DIST,B，e +C DIST,P / C,d / a +C DIST，w ; Among them: CFP DIST The unit is kgCO2eq, C DIST,T，p It represents the quantitative result of the carbon footprint of the target product transportation in the distribution stage, in kgCO2eq, C DIST,e The carbon footprint of energy acquisition and pre-processing used in the distribution phase is quantified in kgCO2eq, C DIST,B，e It indicates the direct greenhouse gas emissions caused by the combustion of combustible energy in the distribution stage, in kgCO2eq, C DIST,P / C,d / a It indicates the direct emission or absorption of greenhouse gases caused by physical and chemical changes other than energy combustion in the distribution stage, in kgCO2eq, C DIST,w It represents the quantitative result of the carbon footprint of waste treatment generated in the distribution stage, in kgCO2eq; Quantification results of carbon footprint of target product in use phase CFP USE The calculation formula is: CFP USE =C USE,T，p +C USE,e +C USE，B，e +C USE,P / C,d / a +C USE,w ; Among them: CFP USE The unit is kgCO2eq, C USE,T，p It represents the quantitative result of the carbon footprint of the target product transportation in the use phase, in kgCO2eq, C USE，e It represents the carbon footprint of energy acquisition and pre-processing used in the use phase, in kgCO2eq, C USE，B，e It indicates the direct greenhouse gas emissions caused by the combustion of combustible energy during the use phase, in kgCO2eq, C USE,P / C,d / a It indicates the direct emission or absorption of greenhouse gases caused by physical and chemical changes other than energy combustion during the use phase, in kgCO2eq, C USE,w It represents the quantitative result of the carbon footprint of waste treatment generated during the use phase, in kgCO2eq; Quantification results of carbon footprint at the end of life of target products CFP EoL The calculation formula is: Among them: CFP EoL The unit is kgCO2eq, M EOL,w，k It represents the treatment amount of the kth product or waste at the end of life stage, in kg, D EOL,w,k，j The transport distance of the kth product or waste at the end of life by the jth mode of transport, in km, C EoL,w1 The carbon footprint of a product or waste product at the end of its life cycle containing materials that cannot generate energy recovery is quantified in kgCO2eq, C EoL,w2 The carbon footprint of a product or waste at the end of its life cycle containing materials that can generate energy recovery is quantified in kgCO2eq, C EoL，w3 Represents the quantified carbon footprint of a product or waste at the end of its life that does not contain recyclable materials, expressed in kgCO2eq.

6. The method for quantifying the carbon footprint of a product according to claim 5, characterized in that: Quantification of the carbon footprint of energy acquisition and pre-processing used in the target product life cycle phase C PHASE,e The calculation formula is: Among them: PHASE represents the five life cycle stages of RM, MFG, DIST, USE, and EOL target products. PHASE,e The unit is kgCO2eq, M PHASE,e，i Indicates the consumption or generation of the i-th energy in the target product life cycle stage, in kg / kwh / MJ, CFP e，i represents the carbon footprint quantification result of the i-th energy acquisition and preprocessing, in kgCO2eq, D PHASE,e，i，j It represents the transportation distance of the j-th mode of transportation of the i-th energy in the life cycle stage of the Mubi'an product, in km.

7. The method for quantifying the carbon footprint of a product according to claim 5, characterized in that: Quantification results of transportation carbon footprint of target product life cycle stage C PHASE,T，p The calculation formula is: Where: C PHASE,T，p The unit is kgCO2eq, M PHASE,T，p Indicates the transportation volume of the target product in the life cycle stage, in kg, D PHASE,T，p，j It represents the transportation distance of the jth mode of transportation in the target product life cycle stage, in km.

8. The method for quantifying the carbon footprint of a product according to claim 5, characterized in that: Direct greenhouse gas emissions caused by combustion of combustible energy during the target product life cycle stage C PHASE,B，e The calculation formula is: Where: C PHASE,B，e The unit is kgCO2eq, M PHASE,B，e，n It represents the consumption of the nth combustible energy in the target product life cycle stage, in t / 10 4 Nm 3 , NVC B，n It represents the average lower calorific value of the nth combustible energy source. For solid or liquid fuels, the unit is GJ / t, and for gaseous fuels, the unit is GJ / 10 4 Nm 3 , C.C. B，m Indicates the carbon content per unit calorific value of the nth combustible energy, in units of tC / GJ, OF B，n Indicates the carbon oxidation rate of the nth combustible energy source, in %, It represents the 100-year global warming potential of the greenhouse gas carbon dioxide.

9. The method for quantifying the carbon footprint of a product according to claim 5, characterized in that: C MFG,P / C,d / a , C DIST,P / C,d / a and C USE,P / C,d / a This includes the following situations: Scenario A: The calculation formula for direct greenhouse gas emissions or absorption caused by physical changes other than energy combustion is: C PHASE,P,d / a =∑ m (M PHASE,P,d / a，m ·GWP m ); Where: C PHASE,P,d / a Indicates the direct greenhouse gas emissions or absorption caused by physical changes other than energy combustion during the target product life cycle, in kgCO2eq, M PHASE,P,d / a，m Indicates the direct emission or absorption of the mth greenhouse gas caused by physical changes other than energy combustion during the life cycle of the target product, in kg, GWP m represents the 100-year global warming potential of the mth greenhouse gas; Scenario B: Product 1: Quantification of carbon footprint of direct emissions of perfluorocarbons produced by anode effect during the production process of electrolytic aluminum products C MFG,C，d,Al The calculation formula is: Where: C MFG,C，d,Al The unit is kgCO2eq, M MFG,C，d,Al It represents the electrolytic aluminum output in the target product production stage, in t, T AEM It indicates the duration of anode effect of each cell per day in the midpoint unloading prebaked cell during the production stage of the target product, in minutes. It represents the empirical coefficient of direct emission of carbon tetrafluoride produced by the anode effect of electrolytic aluminum during the production stage of the target product. Indicates the 100-year global warming potential of the target product, carbon tetrafluoride, a greenhouse gas. It represents the empirical coefficient of direct emission of carbon hexafluoride produced by anode effect of electrolytic aluminum in the production stage of target products. Indicates the 100-year global warming potential of the target product greenhouse gas carbon hexafluoride; Product 2: Quantification of carbon footprint of direct absorption of carbon dioxide produced by carbonization reaction during the use of concrete products C USE,C,a，concrete The calculation formula is: Where: C USE,C,a，concrete The unit is kgCO2eq, M USE,C,a，concrete Indicates the amount of concrete used during the target product use phase, in m 3 , R cement Indicates the cement content in the concrete used for the target product, in kg / m 3 , R CaO Indicates the mass percentage of active calcium oxide in cement in concrete used in the target product, in wt%, DC k It indicates the diffusion coefficient of carbon dioxide in the concrete used for the target product under specific exposure conditions, in mm 2 / a, T represents the actual service life of the concrete used in the target product, in years, TH concrete Indicates the actual thickness of the concrete component used in the target product, in mm.

10. The method for quantifying the carbon footprint of a product according to claim 5, characterized in that: Quantification of the carbon footprint of products or waste at the end of their life that contain materials that cannot generate energy recovery C EoL，w1 The calculation formula is: Where: R k represents the proportion of the kth product or waste that is properly collected and treated, A w，k The specific allocation coefficient for the kth product or waste to distribute the carbon footprint burden between the two life cycles of supplying recycled materials and using recycled materials, CFP w，k It represents the carbon footprint quantification result of the proper collection and treatment process of the k-th product or waste, in kgCO2eq, A k，x R represents the specific allocation coefficient for the carbon footprint burden of the xth material in the kth product or waste between the two life cycles of supply and use. k，x represents the specific recovery rate of the xth material in the kth product or waste that is properly collected and treated, C k，x Indicates the mass percentage of the xth material in the kth product or waste, in wt%, CFP A，k，x The carbon footprint of the additional recycling process required to produce recycled materials from the xth material in the kth product or waste is quantified in kgCO2eq, CFP k，x The carbon footprint of the acquisition and pre-processing of the assumed virgin material that the xth material can replace in the kth product or waste is quantified in kgCO2eq, Q k，x The coefficient that represents the proportion of the xth material in the kth product or waste that can be converted into virgin material, CFP w，nc，k It represents the carbon footprint quantification result of the k-th product or waste that is not properly collected and treated, in kgCO2eq, R k，nc，x represents the specific recovery rate of the kth product or waste where the xth material is not properly collected and treated; Quantification of the carbon footprint of products or waste at the end of their life that contain materials that generate energy recovery C EoL，w2 The calculation formula is: Where: B represents the distribution coefficient of the energy recovery process, R k，y represents the specific recovery rate of the kth product or waste in which the yth material is properly collected and treated, C k，y Indicates the weight percentage of the yth material in the kth product or waste, in wt%, CFP k，y It represents the quantitative result of carbon footprint in the energy recovery process of the yth material in the kth product or waste, in kgCO2eq; Quantification of the carbon footprint of products or waste at the end of life that do not contain recyclable materials C EoL，w3 The calculation formula is: Where: C k，z Indicates the weight percentage of the zth material in the kth product or waste, in wt%, CFP k，z It represents the quantified result of the carbon footprint of the zth material in the kth product or waste during its disposal (such as landfill), in kgCO2eq.

11. The method for quantifying the carbon footprint of a product according to claim 5, characterized in that: Quantified carbon footprint of target product CFP P The calculation formula is: CFP P =CFP RM +CFP MFG +CFP DIST +CFP USE +CFP EoL ; Among them: CFP P The unit is kgCO2eq.

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