Enterprise carbon emission reduction benefit evaluation method based on multi-carbon influence

Abstract

The invention discloses an enterprise carbon emission reduction benefit evaluation method based on multi-carbon influence, and relates to the technical field of carbon emission reduction evaluation, and the method comprises the steps: obtaining a carbon emission key factor based on the accounting boundary of the target enterprise carbon emission reduction benefit; obtaining carbon emission data of the target enterprise and downstream energy consumption data of the target enterprise based on the carbon emission key factor; calculating a first carbon footprint of the target enterprise according to the carbon emission data and the downstream energy consumption data; obtaining a second carbon footprint of the target enterprise after the production scheme is improved, and calculating a carbon fingerprint of the target enterprise according to the first carbon footprint and the second carbon footprint; evaluating the carbon emission reduction benefit of the target enterprise according to the carbon fingerprint to obtain a carbon emission reduction benefit evaluation result; the internal carbon emission condition of the enterprise and the carbon emission influence of products or services of the enterprise in the whole life cycle are fully considered, the limitation that only internal production links of the enterprise are concerned and the upstream and downstream influence is neglected is overcome, and the reliability and accuracy of carbon emission reduction benefits of the enterprise are remarkably improved.

Description

Technical Field

[0001] The present invention relates to the technical field of carbon emission reduction assessment, and in particular to a method for assessing the carbon emission reduction benefits of an enterprise based on multiple carbon impacts. Background Art

[0002] How companies quantify their carbon footprint, implement effective emission reduction measures, and set long-term environmental protection goals has become a key factor in determining their long-term survival and success. However, traditional carbon emission reduction benefit accounting methods mainly focus on the company's own carbon emissions, namely the carbon footprint, while ignoring the positive impact of the company's products or services in helping customers reduce carbon emissions, namely the carbon fingerprint, resulting in low accuracy in the company's carbon emission reduction benefit accounting and unreliable carbon emission reduction benefit assessment.

[0003] In the whole life cycle of products or services such as production and consumption, carbon fingerprint analysis pays more attention to determining the comprehensive environmental value of the whole life cycle based on the actual impact of products or services. On the one hand, the carbon footprint of the new production plan is compared with the benchmark plan; on the other hand, the benchmark product is selected for comparison to calculate the reduction of carbon emissions of users, which makes the current corporate carbon emission reduction benefit accounting mainly focus on energy-saving transformation such as green electricity use and production process optimization, and lacks quantitative data on the role of corporate products or services in promoting carbon emissions reduction in the upstream and downstream of the industrial chain. There are currently three main methods for carbon footprint accounting: input-output analysis, life cycle assessment, and hybrid life cycle assessment. Among them, the input-output analysis method is a top-down method for calculating carbon footprints. It takes the entire economic system as the boundary, is comprehensive and robust, and requires less human and material resources for carbon footprint accounting, which is suitable for macro-system analysis; life cycle assessment is a bottom-up method for calculating carbon footprints. The analysis results are targeted and suitable for carbon footprint accounting of micro-systems; hybrid life cycle assessment integrates input-output analysis and life cycle assessment in the same framework, which can reduce human and material inputs and retain targeting.

[0004] However, the carbon footprint of enterprises is limited to carbon emission reductions generated by internal electricity substitution, energy-saving transformation, etc., and lacks accounting for carbon emission reduction in upstream and downstream. It is not of sufficient guiding significance for the development of the industrial chain and has certain limitations in practical applications. In addition, the product carbon footprint accounting method based on the full life cycle assessment is controversial in the upstream and downstream allocation of carbon emission responsibilities. Therefore, a more comprehensive and scientific accounting method is needed to accurately evaluate the carbon emission reduction benefits of enterprises. Summary of the invention

[0005] The purpose of the present invention is to address the problem that traditional carbon emission reduction benefit accounting methods are limited to internal carbon footprints, resulting in poor carbon emission reduction benefit evaluation results; a corporate carbon emission reduction benefit evaluation method based on multiple carbon impacts is proposed, by obtaining the carbon emission data of the target enterprise and the downstream energy consumption data of the target enterprise according to the key factors of carbon emissions; calculating the first carbon footprint of the target enterprise according to the carbon emission data and the downstream energy consumption data; obtaining the second carbon footprint of the target enterprise after the improved production plan, and calculating the carbon fingerprint of the target enterprise according to the first carbon footprint and the second carbon footprint; evaluating the carbon emission reduction benefits of the target enterprise according to the carbon fingerprint, and obtaining the carbon emission reduction benefit evaluation results, which fully considers the internal carbon emission situation of the enterprise and the carbon emission impact of the enterprise's products or services throughout the life cycle, overcomes the limitation of only focusing on the internal production links of the enterprise and ignoring the upstream and downstream impacts, and significantly improves the reliability and accuracy of the enterprise's carbon emission reduction benefits.

[0006] In order to solve the above technical problems, the technical solution adopted by the present invention is: a method for evaluating the carbon emission reduction benefits of an enterprise based on multiple carbon impacts, comprising the following steps: Based on the accounting boundary of the target enterprise's carbon emission reduction benefits, obtain the key factors of carbon emissions; Acquire the carbon emission data of the target enterprise and the downstream energy consumption data of the target enterprise based on the key carbon emission factors; Calculating a first carbon footprint of the target enterprise according to the carbon emission data and the downstream energy consumption data; Obtaining a second carbon footprint of the target enterprise after improving the production plan, and calculating the carbon fingerprint of the target enterprise based on the first carbon footprint and the second carbon footprint; Evaluate the carbon emission reduction benefits of the target enterprise based on the carbon fingerprint and obtain the carbon emission reduction benefit evaluation results.

[0007] In this plan, by clarifying the accounting boundaries and carbon emission influencing factors, it can comprehensively cover the direct and indirect carbon emission activities of the enterprise, as well as the carbon emission impact of products or services throughout their life cycle, making the carbon emission reduction benefit evaluation more comprehensive and avoiding the limitation of focusing only on the internal production links of the enterprise while ignoring the upstream and downstream impacts; by calculating the carbon fingerprint, it can quantify the positive impact of the enterprise's products or services on downstream carbon emissions reduction, which helps to combine the enterprise's own emission reduction effect, that is, the reduction of the second carbon footprint relative to the first carbon footprint, and the positive impact on the downstream, that is, the carbon fingerprint, to achieve a comprehensive evaluation of the enterprise's carbon emission reduction benefits, and improve the comprehensiveness, reliability and accuracy of the enterprise's carbon emission reduction benefit evaluation.

[0008] Preferably, the calculation boundary based on the carbon emission reduction benefit of the target enterprise and obtaining the key carbon emission factors include: determining the carbon emission source and carbon emission time domain of the target enterprise based on the operation characteristics and service attributes of the target enterprise, and obtaining the calculation boundary; According to the accounting boundary, the operating environment and key characteristics of the target enterprise are identified to obtain the key factors of carbon emissions.

[0009] Preferably, the key features include at least: energy features, process features and product features, wherein: The energy characteristics include at least energy type; The process characteristics at least include process flow characteristics and production equipment energy efficiency ratio; The product characteristics include at least raw material properties and product energy consumption characteristics.

[0010] Preferably, the step of acquiring the carbon emission data of the target enterprise and the downstream energy consumption data of the target enterprise based on the carbon emission key factors includes: Collect the corresponding first energy consumption data based on the energy type, and monitor and collect the production process data of each production equipment within the target enterprise in real time; Monitor carbon emissions during the production and transportation of raw materials and obtain secondary energy consumption data of raw materials; Obtain the third energy consumption data of the product according to the product life cycle of the target enterprise and the energy consumption mode of the target enterprise's products in different operating scenarios; According to the service usage and process flow between the target enterprise and its downstream cooperative enterprises, obtain the fourth energy consumption data of the downstream enterprises corresponding to the target enterprise; The first energy consumption data, the production process data and the second energy consumption data are used as the carbon emission data of the target enterprise, and the third energy consumption data and the fourth energy consumption data are used as the downstream energy consumption data of the target enterprise.

[0011] Preferably, calculating the first carbon footprint of the target enterprise according to the carbon emission data and the downstream energy consumption data includes: Determine the emission factors for each energy consumption data based on the energy type of the target enterprise; Based on the product life cycle of the target enterprise and the downstream energy consumption data of the enterprise, the carbon emissions of each product life cycle are calculated through the emission factor, and the carbon emissions of each cycle are summarized to obtain the first carbon footprint of the target enterprise.

[0012] Preferably, determining the emission factor of each energy consumption data according to the energy type of the target enterprise includes: According to the standard energy emission factor database, the emission factors of each energy type in the target enterprise are screened to obtain the emission factors corresponding to each energy consumption data.

[0013] Preferably, the carbon emissions of each product life cycle are calculated using the emission factor, including: The direct carbon emissions and indirect carbon emissions of the target enterprise are calculated according to the carbon emission factor, the carbon emission data and the downstream energy consumption data.

[0014] Preferably, calculating the carbon fingerprint of the target enterprise according to the first carbon footprint and the second carbon footprint includes: subtracting the first carbon footprint from the second carbon footprint to obtain the carbon fingerprint.

[0015] Preferably, the step of evaluating the carbon emission reduction benefits of the target enterprise according to the carbon fingerprint to obtain the carbon emission reduction benefit evaluation result includes: The carbon emission reduction benefits of the target enterprise are calculated based on the carbon emissions of the carbon fingerprint scenario and the carbon emissions of the first carbon footprint.

[0016] Preferably, the carbon emission reduction benefits include: P=E GHG -E' GHG ; E GHG =E 电、热消耗 +E 化石燃料燃烧 +E 温室气体逸散 +E 废弃物处置 +E 产品使用阶段 Where P represents the carbon emission reduction benefit of the target enterprise, representing the carbon emissions calculated based on downstream energy consumption data after the target enterprise's product production process is improved; E' GHG Indicates the carbon emissions of the carbon fingerprint scenario; E GHG Indicates the carbon emissions corresponding to the first carbon footprint of the target enterprise, in kgCO2-eq; W i is the annual output of the target enterprise's i-th product; E 产品使用过程能耗 E is the emission factor of energy consumption during product use, representing the carbon emission coefficient; 产品温室气体逸散 is the carbon emission coefficient of greenhouse gas escape during product use; ε i is the proportion of the use process of the i-th category product.

[0017] Beneficial effects of the present invention: By integrating the company's internal carbon emission data and downstream energy consumption data, the first carbon footprint is calculated to provide a comparative benchmark for the subsequent calculation of the carbon fingerprint and evaluation of carbon emission reduction benefits, so as to fully understand the company's carbon emissions and ensure the accurate calculation of the company's carbon emission reduction benefits; by comparing the carbon emissions of the company's products or services during customer use under the baseline scenario and the carbon fingerprint scenario, the company's carbon fingerprint is calculated, taking into account the changes in the impact of the company's products or services on the energy consumption and carbon emissions of downstream companies or customers, and can quantify the carbon emission reduction benefits of the company's downstream, which in turn helps to carry out refined management of carbon emission reduction work, accurately locate problems and improvement directions, and achieve sustainable development of the company's carbon emission reduction work. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Other features, objects and advantages of the present invention will become more apparent by reading the detailed description of non-limiting embodiments made with reference to the following drawings. The drawings are only for the purpose of illustrating preferred embodiments and are not to be considered as limiting the present invention. Also, the same reference symbols are used throughout the drawings to represent the same parts.

[0019] Figure 1 This is a flow chart of a method for evaluating the carbon emission reduction benefits of an enterprise based on multiple carbon impacts according to an embodiment of the present invention. DETAILED DESCRIPTION

[0020] In order to make the objectives, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific implementation method described herein is only an optimal embodiment of the present invention, which is only used to explain the present invention and does not limit the scope of protection of the present invention. All other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0021] Example 1: Figure 1 As shown, a method for evaluating the carbon emission reduction benefits of an enterprise based on multiple carbon impacts includes steps S1-S5, wherein: S1. Based on the accounting boundary of the target enterprise's carbon emission reduction benefits, obtain the key factors of carbon emissions; specifically, determine the target enterprise's carbon emission sources and carbon emission time domain based on the target enterprise's operating characteristics and service attributes, and obtain the accounting boundary; According to the accounting boundary, the operating environment and key characteristics of the target enterprise are identified to obtain the key factors of carbon emissions.

[0022] Preferably, the key features include at least: energy features, process features and product features, wherein: The energy characteristics include at least energy type; The process characteristics at least include process flow characteristics and production equipment energy efficiency ratio; The product characteristics include at least raw material properties and product energy consumption characteristics.

[0023] In some embodiments, the boundaries of the enterprise's carbon emission reduction benefit accounting include the enterprise's own production and operation process and the carbon emissions of the enterprise's products or services during customer use. Energy types include at least coal, oil, natural gas, electricity from different sources, etc.; process flow characteristics represent the production process of the product, and process flow characteristics data can be collected for each production link to directly affect the energy consumption and emission levels in the production process. The energy efficiency ratio of production equipment represents the investment plan and implementation of the enterprise in equipment renewal and transformation, including the selection basis of new equipment (such as energy efficiency rating, environmental performance, etc.), the technical plan of the transformation project, and the expected energy conservation and emission reduction effect. These data reflect the enterprise's efforts and actual actions in improving the level of production equipment.

[0024] Furthermore, the raw material attributes include at least the name, specifications, origin, supplier, purchase volume, raw material consumption per unit product and carbon emission data in the raw material production process; the product energy consumption characteristics include information such as the product design, functional characteristics, structural composition and expected service life, which helps to analyze the potential impact of product design on energy consumption and carbon emissions; product energy consumption characteristics also include: the company's production planning process, production task allocation, production progress tracking records and inventory management data, so as to analyze the rationality of the production plan and the impact of the execution effect on carbon emissions.

[0025] Furthermore, the operating environment includes at least detailed information on the enterprise's geographical location, such as geographical coordinates, altitude, climate type such as annual average temperature, precipitation, sunshine duration and other climate data, and local energy supply structure, that is, the proportion of various types of energy in the total energy supply, so as to analyze the impact of geographical location factors on the enterprise's energy demand and carbon emissions through these data.

[0026] In this embodiment, by clarifying the accounting scope, the specific activities, processes and emission sources covered by the enterprise's carbon emission reduction benefit assessment are determined to avoid missing important carbon emission links and ensure the comprehensiveness of the assessment; by analyzing various factors within the accounting boundary, key factors that have a greater impact on carbon emissions are identified. These factors are the focus of subsequent data collection and analysis, and can provide key clues for accurately calculating carbon emissions, thereby improving the pertinence and effectiveness of the assessment.

[0027] S2. Acquire the carbon emission data of the target enterprise and the downstream energy consumption data of the target enterprise based on the key carbon emission factors; specifically, acquire the corresponding first energy consumption data based on the energy type, and monitor and acquire the production process data of each production equipment within the target enterprise in real time; Monitor carbon emissions during the production and transportation of raw materials and obtain secondary energy consumption data of raw materials; Obtain the third energy consumption data of the product according to the product life cycle of the target enterprise and the energy consumption mode of the target enterprise's products in different operating scenarios; According to the service usage and process flow between the target enterprise and its downstream cooperative enterprises, obtain the fourth energy consumption data of the downstream enterprises corresponding to the target enterprise; The first energy consumption data, the production process data and the second energy consumption data are used as the carbon emission data of the target enterprise, and the third energy consumption data and the fourth energy consumption data are used as the downstream energy consumption data of the target enterprise.

[0028] In this embodiment, the above data can comprehensively reflect the carbon emissions of the target enterprise, providing reliable data support for calculating the carbon footprint and subsequent carbon emission reduction benefits.

[0029] S3. Calculate the first carbon footprint of the target enterprise according to the carbon emission data and the downstream energy consumption data; specifically including: According to the energy type of the target enterprise, the emission factor of each energy consumption data is determined, wherein: the emission factor of each energy type in the target enterprise is screened according to the standard energy emission factor database to obtain the emission factor corresponding to each energy consumption data; based on the product life cycle of the target enterprise combined with the downstream energy consumption data of the enterprise, the carbon emissions of each product life cycle are calculated through the emission factor, and the carbon emissions of each cycle are summarized to obtain the first carbon footprint of the target enterprise.

[0030] Preferably, the carbon emissions of each product life cycle are calculated using the emission factor, including: The direct carbon emissions and indirect carbon emissions of the target enterprise are calculated according to the carbon emission factor, the carbon emission data and the downstream energy consumption data.

[0031] In this embodiment, the standard energy emission factor database can refer to international authoritative databases, such as energy emission factor data that may be involved in product carbon footprint accounting standards such as ISO 14067. These standards are widely used worldwide and provide companies with a unified accounting method and data reference; or refer to emission factor data files published by environmental protection departments and energy management agencies in the company's area. These data are more in line with local actual conditions and have higher accuracy and applicability when conducting corporate carbon emissions accounting.

[0032] It should be noted that the calculation method of the first carbon footprint is to calculate the carbon emissions of the enterprise itself in accordance with relevant standards such as ISO 14067 to obtain the carbon footprint of the enterprise. Among them, direct carbon emissions refer to the carbon emissions directly generated within the target enterprise, such as energy combustion and production process emissions; indirect carbon emissions refer to the indirect carbon emissions generated by the enterprise's use of purchased electricity and heat.

[0033] It should also be noted that if an enterprise considers the impact of carbon emissions upstream and downstream of the supply chain (such as the carbon emissions in the raw material production process are allocated to the enterprise's products), it should use appropriate methods to calculate this part of indirect carbon emissions based on the determined accounting boundaries and data conditions. For example, based on the life cycle assessment method, it should be calculated based on factors such as energy consumption in the raw material production process, emission factors, and the proportion of raw materials in the enterprise's products, and include them in the calculation scope of the enterprise's carbon footprint, and finally obtain the enterprise's complete carbon footprint.

[0034] In some embodiments, the selection and determination of emission factors can be determined based on energy quality and combustion conditions. For example, for fossil energy sources such as coal and oil, their quality parameters such as the calorific value, sulfur content, and volatile matter of coal are considered; the impact of oil density, sulfur content, nitrogen content, etc. on emission factors; since different qualities of energy may generate different greenhouse gas emissions during combustion, the impact of energy combustion methods and combustion equipment on emission factors can be analyzed to select appropriate emission factors.

[0035] In other instances, emission factors can be determined by considering factors in the energy production and supply links. For example, for enterprises that produce their own energy, such as using waste heat to generate electricity, solar photovoltaic power generation, etc., when calculating the emission factor, it is necessary to comprehensively consider the carbon emissions during the construction, operation and maintenance of the energy production equipment, including the carbon emission allocation during the equipment manufacturing process, emissions generated by energy consumption, etc., as well as the actual greenhouse gas emissions in the energy production process, to ensure that the emission factor accurately reflects the carbon footprint of the enterprise's self-produced energy.

[0036] In this embodiment, by calculating the first carbon footprint, a quantitative indicator of the company's current carbon emission status can be intuitively reflected, providing a comparison benchmark for the subsequent accurate calculation of the carbon fingerprint and evaluation of carbon emission reduction benefits.

[0037] S4. Obtaining a second carbon footprint of the target enterprise after improving the production plan, and calculating the carbon fingerprint of the target enterprise based on the first carbon footprint and the second carbon footprint; specifically including: The first carbon footprint is subtracted from the second carbon footprint to obtain the carbon fingerprint.

[0038] Furthermore, the carbon fingerprint calculation formula is expressed as follows: Carbon fingerprint = first carbon footprint - second carbon footprint; Among them, the carbon fingerprint refers to the carbon fingerprint generated when the enterprise's products or services are used by customers. The first carbon footprint represents the carbon footprint generated when customers use the enterprise's products or services under the baseline scenario, and the second carbon footprint represents the carbon footprint generated when customers use the enterprise's products or services under the carbon fingerprint scenario.

[0039] It is understandable that by calculating the carbon handprint, the focus on carbon emissions has shifted from reducing the negative impact of products and activities to increasing their positive impact, which can drive the practical application of carbon assessment, and include the change in environmental impact brought by changes in the product itself to the downstream in the assessment scope, clarify the allocation mechanism of the environmental impact of emission reduction projects, and can be used to publicize the positive impact on the environment and enhance the competitiveness of enterprises in the market. Carbon handprints can be used to quantify the positive impact of corporate products or services in helping customers reduce carbon emissions, thereby more comprehensively evaluating the carbon reduction benefits of enterprises.

[0040] In this embodiment, the carbon fingerprint is calculated by comparing the baseline scenario, which can be roughly regarded as the situation before the production plan is improved, but it emphasizes the impact of products or services on the downstream, and the carbon fingerprint scenario, which is the carbon footprint generated by customers using the company's products or services after measures are taken. It accurately reflects the positive impact of the company on downstream carbon emissions reduction and further improves the comprehensiveness of the company's carbon emission reduction benefit evaluation.

[0041] S5. Evaluate the carbon emission reduction benefits of the target enterprise based on the carbon fingerprint and obtain the carbon emission reduction benefit evaluation results; specifically including: The carbon emission reduction benefits of the target enterprise are calculated based on the carbon emissions of the carbon fingerprint scenario and the carbon emissions of the first carbon footprint.

[0042] Preferably, the carbon emission reduction benefits include: P=E GHG -E' GHG ; E GHG =E 电、热消耗 +E 化石燃料燃烧 +E 温室气体逸散 +E 废弃物处置 +E 产品使用阶段 Where P represents the carbon emission reduction benefit of the target enterprise, representing the carbon emissions calculated based on downstream energy consumption data after the target enterprise's product production process is improved; E' GHG Indicates the carbon emissions of the carbon fingerprint scenario; E GHG Indicates the carbon emissions corresponding to the first carbon footprint of the target enterprise, in kgCO2-eq; W i is the annual output of the target enterprise's i-th product; E 产品使用过程能耗 E is the emission factor of energy consumption during product use, representing the carbon emission coefficient;产品温室气体逸散 is the carbon emission coefficient of greenhouse gas escape during product use; ε i is the proportion of the use process of the i-th category product.

[0043] In this embodiment, by comparing and integrating the carbon footprint and the carbon fingerprint, both the reduction of the enterprise's own emissions and the contribution to the reduction of downstream carbon emissions are taken into account, thereby comprehensively evaluating the carbon emission reduction benefits of the enterprise.

[0044] The above specific embodiments are preferred embodiments of the present invention, and are not intended to limit the specific implementation scope of the present invention. The scope of the present invention includes but is not limited to the present specific embodiments. All equivalent changes made in accordance with the shape, structure, and method of the present invention are within the protection scope of the present invention.

Claims

1. The enterprise carbon emission reduction benefit evaluation method based on multiple carbon impacts is characterized by: The steps include: Based on the accounting boundary of the target enterprise's carbon emission reduction benefits, obtain the key factors of carbon emissions; Acquire the carbon emission data of the target enterprise and the downstream energy consumption data of the target enterprise based on the key carbon emission factors; Calculating a first carbon footprint of the target enterprise according to the carbon emission data and the downstream energy consumption data; Obtaining a second carbon footprint of the target enterprise after improving the production plan, and calculating the carbon fingerprint of the target enterprise based on the first carbon footprint and the second carbon footprint; Evaluate the carbon emission reduction benefits of the target enterprise based on the carbon fingerprint and obtain the carbon emission reduction benefit evaluation results.

2. The method for evaluating the carbon emission reduction benefits of an enterprise based on multiple carbon impacts according to claim 1 is characterized by: The calculation boundary based on the carbon emission reduction benefits of the target enterprise is used to obtain the key factors of carbon emissions, including: Based on the operational characteristics and service attributes of the target enterprise, determine the carbon emission source and carbon emission time domain of the target enterprise, and obtain the accounting boundary; According to the accounting boundary, the operating environment and key characteristics of the target enterprise are identified to obtain the key factors of carbon emissions.

3. The enterprise carbon emission reduction benefit evaluation method based on multiple carbon impacts according to claim 2 is characterized by: The key features include at least: energy features, process features and product features, among which: The energy characteristics include at least energy type; The process characteristics at least include process flow characteristics and production equipment energy efficiency ratio; The product characteristics include at least raw material properties and product energy consumption characteristics.

4. The method for evaluating the carbon emission reduction benefits of an enterprise based on multiple carbon impacts according to claim 2 is characterized in that: The step of obtaining the carbon emission data of the target enterprise and the downstream energy consumption data of the target enterprise based on the carbon emission key factors includes: Collect the corresponding first energy consumption data based on the energy type, and monitor and collect the production process data of each production equipment within the target enterprise in real time; Monitor carbon emissions during the production and transportation of raw materials and obtain secondary energy consumption data of raw materials; Obtain the third energy consumption data of the product according to the product life cycle of the target enterprise and the energy consumption mode of the target enterprise's products in different operating scenarios; According to the service usage and process flow between the target enterprise and its downstream cooperative enterprises, obtain the fourth energy consumption data of the downstream enterprises corresponding to the target enterprise; The first energy consumption data, the production process data and the second energy consumption data are used as the carbon emission data of the target enterprise, and the third energy consumption data and the fourth energy consumption data are used as the downstream energy consumption data of the target enterprise.

5. The method for evaluating the carbon emission reduction benefits of an enterprise based on multiple carbon impacts according to claim 4 is characterized in that: The calculating the first carbon footprint of the target enterprise according to the carbon emission data and the downstream energy consumption data includes: determining the emission factor of each energy consumption data according to the energy type of the target enterprise; Based on the product life cycle of the target enterprise and the downstream energy consumption data of the enterprise, the carbon emissions of each product life cycle are calculated through the emission factor, and the carbon emissions of each cycle are summarized to obtain the first carbon footprint of the target enterprise.

6. The method for evaluating the carbon emission reduction benefits of an enterprise based on multiple carbon impacts according to claim 5 is characterized in that: The emission factors of various energy consumption data are determined according to the energy type of the target enterprise, including: According to the standard energy emission factor database, the emission factors of each energy type in the target enterprise are screened to obtain the emission factors corresponding to each energy consumption data.

7. The method for evaluating the carbon emission reduction benefits of an enterprise based on multiple carbon impacts according to claim 5 is characterized in that: The carbon emissions of each product life cycle are calculated using the emission factors, including: The direct carbon emissions and indirect carbon emissions of the target enterprise are calculated according to the carbon emission factor, the carbon emission data and the downstream energy consumption data.

8. The method for evaluating the carbon emission reduction benefits of an enterprise based on multiple carbon impacts according to claim 1 is characterized by: The calculating the carbon footprint of the target enterprise according to the first carbon footprint and the second carbon footprint includes: The first carbon footprint is subtracted from the second carbon footprint to obtain the carbon fingerprint.

9. The method for evaluating the carbon emission reduction benefits of an enterprise based on multiple carbon impacts according to claim 8 is characterized in that: The carbon emission reduction benefits of the target enterprise are evaluated according to the carbon fingerprint to obtain the carbon emission reduction benefit evaluation results, including: The carbon emission reduction benefits of the target enterprise are calculated based on the carbon emissions of the carbon fingerprint scenario and the carbon emissions of the first carbon footprint.

10. The method for evaluating the carbon emission reduction benefits of an enterprise based on multiple carbon impacts according to claim 9 is characterized in that: The carbon reduction benefits include: P=E GHG -AND' GHG ; AND GHG =And 电、热消耗 +E 化石燃料燃烧 +E 温室气体逸散 +E 废弃物处置 +E 产品使用阶段 Where P represents the carbon emission reduction benefit of the target enterprise, representing the carbon emissions calculated based on downstream energy consumption data after the target enterprise's product production process is improved; E' GHG Indicates the carbon emissions of the carbon fingerprint scenario; E GHG Indicates the carbon emissions corresponding to the first carbon footprint of the target enterprise, in kgCO2-eq; W i is the annual output of the target enterprise's i-th product; E 产品使用过程能耗 E is the emission factor of energy consumption during product use, representing the carbon emission coefficient; 产品温室气体逸散 is the carbon emission coefficient of greenhouse gas escape during product use; ε i is the proportion of the use process of the i-th category product.

Images