Energy chemical industry energy consumption index calculation method and system

Abstract

The application provides an energy chemical energy consumption index calculation method and system, wherein the method comprises the following steps: obtaining energy consumption data of a target energy chemical project in a reporting period; wherein the energy consumption data comprises a total amount of net energy consumption in a boundary and added value of the project; based on the energy consumption data, unit added value energy consumption is calculated according to a unit added value energy consumption index calculation formula; wherein in the unit added value energy consumption index calculation formula, the unit added value energy consumption is a ratio of the total amount of net energy consumption in the boundary and the added value of the project. The new energy chemical energy consumption index is determined through calculation, unified accounting of various energy chemical energy consumptions is realized, and the energy consumption index has universality.

Description

Technical Field

[0001] This invention relates to the field of energy and chemical technology, and in particular to a method and system for calculating energy consumption indicators in the energy and chemical industry. Background Technology

[0002] The energy and chemical industry is a production sector of secondary energy products and chemical products, and it is also a high-energy-consuming industry. In recent years, energy conservation and consumption reduction in the energy and chemical industry have received high attention. Currently, through the optimized design of new plants, energy-saving renovation of old plants, and operational optimization, significant energy-saving effects have been achieved.

[0003] However, in practice, it has been found that due to historical and industry traditions, the energy efficiency evaluation indicators for oil refining, petrochemicals and coal chemicals in China are not entirely consistent. Commonly used energy consumption evaluation indicators include energy consumption per 10,000 yuan of output value, energy consumption per unit of product and energy efficiency indicators.

[0004] The energy consumption per 10,000 yuan of output value is greatly influenced by factors such as product pricing mechanisms, raw material sources, equipment structure, and combustion structure, making it not entirely comparable. The main energy consumption per unit of product is heavily correlated with processing costs; the properties of raw materials, product specifications, processing flow, equipment operating load, and the enterprise's emission limits for waste gas, wastewater, and solid waste all significantly impact this indicator. Furthermore, the calculation methods for energy efficiency indicators differ greatly between the chemical and petrochemical industries. Therefore, the existing energy efficiency evaluation indicators for refining, petrochemicals, and coal chemicals are self-contained and ill-suited to the integrated energy and chemical development trend under the dual-carbon development model.

[0005] Therefore, how to provide a method and system for calculating energy consumption indicators in the energy and chemical industry, to calculate and determine new energy consumption indicators in the energy and chemical industry, to achieve unified accounting of energy consumption for various types of energy and chemical industries, and to make energy consumption indicators universally applicable, has become an urgent problem to be solved. Summary of the Invention

[0006] To address the shortcomings of existing technologies, embodiments of the present invention provide a method and system for calculating energy consumption indicators in the energy and chemical industry.

[0007] This invention provides a method for calculating energy consumption indicators in the energy and chemical industry, comprising:

[0008] Obtain energy consumption data for the target energy and chemical project during the reporting period; the energy consumption data includes: the total net energy consumption within the boundary area and the added value of the project;

[0009] Based on energy consumption data, the energy consumption per unit of added value is calculated according to the formula for calculating the energy consumption per unit of added value. In the formula for calculating the energy consumption per unit of added value, the energy consumption per unit of added value is the ratio of the total net energy consumption within the boundary area to the added value of the project.

[0010] According to the energy and chemical energy consumption index calculation method provided by the present invention, the added value of the project includes: the added value of the project calculated at constant prices and the added value of the project calculated at market prices;

[0011] Correspondingly, the calculation formulas for the energy consumption per unit of added value include: the calculation formula for the energy consumption per 10,000 yuan of added value of the project at constant prices during the reporting period and the calculation formula for the energy consumption per 10,000 yuan of added value of the project at market prices during the reporting period.

[0012] The formula for calculating the energy consumption index per 10,000 yuan of added value for projects during the reporting period at constant prices is as follows:

[0013]

[0014] The formula for calculating the energy consumption index per 10,000 yuan of added value for projects during the reporting period is as follows:

[0015]

[0016] In the formula, E CP Energy consumption per 10,000 yuan of added value of the project during the reporting period, at constant prices; E MP The energy consumption per 10,000 yuan of added value of the project during the reporting period, based on market prices; ∑E i ΔV represents the total net energy consumption within the boundary area. CP The added value of the project calculated at constant prices; ΔV MP This refers to the added value of the project calculated at market prices.

[0017] The energy and chemical energy consumption index calculation method provided by the present invention further includes: the total net energy consumption within the boundary area meets the preset conditions for total net consumption.

[0018] The preset conditions for total net consumption include:

[0019] Intermediate energy products produced and consumed within the boundary area are not included in the total net consumption. Material losses generated during processing and storage within the boundary area are included in the total net consumption, and the raw materials, products or intermediate products corresponding to the inventory stored within the boundary area are respectively included in the total net consumption.

[0020] According to the energy and chemical industry energy consumption index calculation method provided by the present invention, energy consumption data of the target energy and chemical industry project during the reporting period is obtained, specifically including:

[0021] Based on gross industrial output, intermediate industrial products, and value-added tax, calculate the value added of a project at constant prices and the value added of a project at market prices according to the value added calculation formula.

[0022] The formula for calculating added value is: Added value = Total industrial output - Industrial intermediate inputs + Value-added tax.

[0023] According to the energy and chemical energy consumption index calculation method provided by the present invention, the added value calculation formula includes: the added value calculation formula for the project calculated at constant prices and the added value calculation formula for the project calculated at market prices;

[0024] The formula for calculating the added value of a project at constant prices is as follows:

[0025] ΔV CP = Total sales revenue of the statistical boundary area (at constant prices) - Total processing costs (at constant prices) + Value-added tax;

[0026] The formula for calculating the added value of a project based on market prices is as follows:

[0027] ΔV MP = Total sales revenue (market price) of the statistical boundary area - Total processing costs (market price) + Value-added tax.

[0028] The energy and chemical energy consumption index calculation method provided by the present invention further includes: industrial intermediate inputs must meet preset conditions for intermediate inputs;

[0029] Intermediate input preset conditions include:

[0030] Intermediate inputs must be the value of public works and services purchased from outside the boundary area and the value of products and services put into production and consumed in one go during the statistical period, and must be included in the gross industrial output.

[0031] According to the energy and chemical energy consumption index calculation method provided by the present invention, before the steps of calculating the added value of a project calculated at constant prices and the added value of a project calculated at market prices based on the total industrial output value, industrial intermediate products, and value-added tax, and according to the added value calculation formula, the method further includes:

[0032] Calculate the value-added tax (VAT) based on tax data and the VAT calculation formula.

[0033] The tax data includes: output tax, input tax, input tax transferred out, export tax refund, tax reduction and exemption, export tax credit to domestic sales, beginning balance of undeducted amount and ending balance of undeducted amount;

[0034] The formula for calculating value-added tax is:

[0035] Value Added Tax (VAT) = (Output VAT - Input VAT + Input VAT Transferred Out) + (Export Tax Refund - Tax Reduction / Exemption - Export Tax Offset to Domestic Sales) + (Beginning Balance - Ending Balance).

[0036] The present invention also provides an energy and chemical energy consumption index calculation system, comprising: a data acquisition unit and an index calculation unit;

[0037] The data acquisition unit is used to acquire energy consumption data of the target energy and chemical project during the reporting period; the energy consumption data includes: the total net energy consumption within the boundary area and the added value of the project;

[0038] The indicator calculation unit is used to calculate the energy consumption per unit of added value based on energy consumption data and according to the formula for calculating the energy consumption per unit of added value. In the formula for calculating the energy consumption per unit of added value, the energy consumption per unit of added value is the ratio of the total net energy consumption within the boundary area to the added value of the project.

[0039] The present invention also provides an electronic device, including a memory, a processor, and a computer program stored in the memory and executable on the processor. When the processor executes the program, it implements the steps of any of the above-described energy and chemical energy consumption index calculation methods.

[0040] The present invention also provides a non-transitory computer-readable storage medium having a computer program stored thereon, which, when executed by a processor, implements the steps of any of the above-described energy and chemical energy consumption index calculation methods.

[0041] The energy consumption index calculation method and system provided by this invention obtains the energy consumption data of the target energy and chemical project during the reporting period, and calculates the energy consumption per unit of added value according to the calculation formula of the energy consumption per unit of added value index. This invention proposes energy consumption per unit of added value as a new evaluation index for energy and chemical industry energy consumption, making the energy consumption index universal and able to meet the accounting of various types of energy and chemical industry energy consumption with the same calculation standard. Attached Figure Description

[0042] To more clearly illustrate the technical solutions in this invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0043] Figure 1 Flowchart of the energy consumption index calculation method for energy and chemical industry provided by the present invention;

[0044] Figure 2 A schematic diagram for calculating energy consumption per unit added value provided by this invention;

[0045] Figure 3 This is a schematic diagram of the energy consumption index calculation system for the energy and chemical industry provided by the present invention;

[0046] Figure 4 A schematic diagram of the physical structure of the electronic device provided by the present invention. Detailed Implementation

[0047] To make the objectives, technical solutions, and advantages of this invention clearer, the technical solutions of this invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this invention. All other embodiments obtained by those skilled in the art based on the embodiments of this invention without creative effort are within the scope of protection of this invention.

[0048] Due to historical and industry traditions, the energy efficiency evaluation indicators for oil refining, petrochemicals, and coal chemicals in China are not entirely consistent; the oil refining industry uses the comprehensive energy consumption per unit of raw material processed (kg standard oil / ton of raw material, kgoe / t). f ) Calculation device, refining single-factor energy consumption based on unit processing volume (kg standard oil / (ton feedstock × refining energy factor), kgoe / (t f ·E f )) Calculate the energy consumption per 10,000 yuan of output value for the entire plant and under a constant price system (tons of standard coal / 10,000 yuan of output value, tce / 10 4 Evaluation indicators such as RMB (Reference: Green and Low-Carbon Transformation of Refining Structure [M]. Beijing: China Petrochemical Press, 2022: 151).

[0049] Petrochemicals adopt the comprehensive energy consumption per unit of qualified product (kg standard oil / ton of product, kgoe / t) p ) and energy consumption per 10,000 yuan of output value under a constant price system (tons of standard coal / 10,000 yuan of output value, tce / 10 4 RMB￥), where the unit qualified product can be one or two main products. For example, an ethylene plant can be one ton of ethylene or one ton of ethylene plus propylene. The coal chemical industry (reference: Methanol to Olefins [M]. Beijing: Science Press, 2015: 436) uses energy efficiency (i.e., the percentage of product calorific value to the calorific value of consumed coal, %) and comprehensive energy consumption per unit of qualified product (kg standard coal / ton of product, kgce / t) as the benchmarks. p ) and energy consumption per 10,000 yuan of output value under a constant price system (tons of standard coal / 10,000 yuan of output value, tce / 10 4 RMB￥).

[0050] Energy consumption per 10,000 yuan of output value reflects the actual energy consumption of energy and chemical enterprises within the statistical period, after deducting the secondary energy generated during processing and conversion. It, to a certain extent, aligns with national energy consumption assessment indicators for local governments and local governments' assessment of industrial enterprises, encouraging enterprises to produce high-value products and optimize efficiency.

[0051] This indicator can be used to evaluate the energy efficiency level of enterprises in oil refining, petrochemical and coal chemical industries, as well as energy chemical enterprises such as oil and gas extraction, coal coking, and bioethanol. However, this indicator is greatly affected by factors such as product pricing mechanism, raw material starting point, equipment structure, and combustion structure, and is not entirely comparable. The equipment structure and utility structure have a great impact on the energy consumption per 10,000 yuan of output value. For example, if an oil refining enterprise has a polypropylene unit and a thermal power plant, the energy consumption per 10,000 yuan of output value will increase significantly (Reference: Establishment and Application of Complete Energy Consumption Evaluation Indicator [J]. Refining Technology and Engineering, 2012(9): 51).

[0052] Unit product energy consumption mainly refers to the total energy consumption level of energy and chemical enterprises in producing each ton of their main products. For enterprises whose main products are non-energy products, such as petrochemical, coal chemical, and natural gas chemical enterprises, the comprehensive energy consumption per ton of main product is adopted. However, traditional oil refineries, which mainly produce secondary energy such as gasoline, coal, and diesel, have always used the comprehensive energy consumption per ton of crude oil (including purchased intermediate oil products).

[0053] This indicator is highly correlated with processing costs. Factors such as the nature of raw materials, product specifications, processing procedures, equipment operating load, and the enterprise's emission limits for waste gas, wastewater, and solid waste have a significant impact on this indicator. This indicator can only be used for comparing data from different periods within the same enterprise / equipment, or for horizontal comparisons between factories with similar raw material properties, product specifications, and equipment structures. It cannot be used for benchmarking between enterprises across industries or between enterprises with different equipment structures within the same industry.

[0054] For example, the curve shown in the literature "Challenges and Countermeasures Faced by my country's Refining Industry in Energy Transition [J]. Petroleum Refining and Chemical Industry, 2021, 52(10): 5" shows that Sinopec's comprehensive energy consumption per unit of refining increased slightly year by year from 2013 to 2018. However, in reality, during this period, the overall properties of Sinopec's crude oil declined, the quality standard of automotive refined oil was upgraded from National IV to National VI, and new national environmental protection standards were implemented. As a result, enterprises had to increase energy consumption for the emission of "three wastes" to meet the standards, which led to an increase in the comprehensive energy consumption per unit of refining.

[0055] As can be seen from the data in Table 1, for process units that are all mainly used to produce ethylene and propylene, the unit comprehensive energy consumption of naphtha steam cracking unit, heavy oil catalytic cracking unit and methanol to olefins unit varies greatly. However, this cannot be used to determine which process unit has higher actual energy efficiency.

[0056] Table 1. Unit comprehensive energy consumption of three olefin process units

[0057]

[0058] Note: ① The yields of ethylene and propylene in the naphtha steam cracking unit were 33.30% and 15.33%, respectively. Data source: Technical and economic analysis of catalytic cracking and steam thermal cracking to olefins [J]. Petrochemical Technology and Economy, 2005(4): 32;

[0059] ②The yields of ethylene and propylene in the heavy oil catalytic cracking unit were 5.16% and 21.56%, respectively. Data source: Energy consumption analysis and energy-saving measures of catalytic cracking unit [J]. Refining Technology and Engineering, 2022(7): 52;

[0060] ③ The ethylene and propylene yields of the methanol-to-olefins unit were 17.96% and 16.33%, respectively. Data source: Operating characteristics of Sinopec 0.6Mt / a S-MTO unit [J]. Refining Technology and Engineering, 2015(11):14;

[0061] ④ The raw materials for the three devices are naphtha, heavy oil and methanol, respectively.

[0062] The energy efficiency indicators used in the coal conversion industry can be used for comparison with clean energy production equipment such as circulating fluidized bed boilers (CFB), integrated gasification combined cycle power generation systems (IGCC), and coal-to-natural gas (SNG) and coal-to-oil (CTL). However, they are meaningless for coal chemical enterprises or equipment such as coal-to-ethylene glycol and coal-to-aromatics, because it is impossible to burn products such as polyolefins, polyesters, and sulfur as fuels, even though they have a high calorific value.

[0063] The single-factor energy consumption index commonly used in the refining industry (reference: Energy consumption evaluation index of oil refinery and its comparison [J]. Refining Technology and Engineering, 2003(11):56) and the complete energy consumption evaluation index based on the improved index (reference: Establishment and application of complete energy consumption evaluation index [J]. Refining Technology and Engineering, 2012(9):51) are most suitable for fuel-type refineries, but they are not suitable for refineries that mainly produce high-value-added products such as lubricating oil, paraffin wax, needle coke, and high-end asphalt, as well as integrated refining and chemical enterprises or units that directly crack crude oil to produce chemicals, and they are difficult to calculate.

[0064] There are significant differences in the statistical calculation methods for energy consumption between the coal chemical industry and the petrochemical industry. The former includes raw coal and product ethylene in its energy consumption statistics, while the latter only includes the energy consumed during the production and processing process. As can be seen from the data in Table 2 (Source: Technical and Economic Evaluation of Modern Coal Chemical Projects [J]. Modern Chemical Industry, 2015(5):2), the difference between these two statistical calculation methods is very large.

[0065] Table 2 Comprehensive Energy Consumption per Unit Product of Modern Coal Chemical Projects

[0066]

[0067] To address the problem that existing energy efficiency evaluation indicators for oil refining, petrochemicals, and coal chemicals are self-contained and difficult to adapt to the integrated development of energy and chemicals under the dual-carbon background, this invention proposes energy consumption per unit added value as a new evaluation indicator for energy and chemical energy consumption, and establishes a calculation method for this indicator.

[0068] Figure 1 The flowchart of the energy consumption index calculation method for energy and chemical industry provided by this invention is as follows: Figure 1 As shown, this invention provides a method for calculating energy consumption indicators in the energy and chemical industry, including:

[0069] Step S1: Obtain energy consumption data for the target energy and chemical project during the reporting period; wherein, the energy consumption data includes: the total net energy consumption within the boundary area and the added value of the project;

[0070] Step S2: Based on energy consumption data, calculate the energy consumption per unit of added value according to the formula for calculating the energy consumption per unit of added value; wherein, in the formula for calculating the energy consumption per unit of added value, the energy consumption per unit of added value is the ratio of the total net energy consumption within the boundary area to the added value of the project.

[0071] Specifically, the development direction of energy and chemical enterprises is to use fossil energy such as oil, natural gas and coal, and renewable energy such as biomass to produce electricity, clean oil products and clean energy such as hydrogen, as well as high-end carbon materials. There will be more and more integrated coal-oil-gas-chemical enterprises.

[0072] For integrated energy and chemical enterprises that use coal, oil, natural gas and biomass as raw materials, this invention proposes a new energy efficiency evaluation index and specific calculation formula for energy consumption per unit added value. In the calculation formula for energy consumption per unit added value, energy consumption per unit added value is the ratio of the total net energy consumption within the boundary area to the added value of the project.

[0073] Understandably, after determining the target energy and chemical project (corresponding enterprise or unit), as well as the corresponding reporting period and boundary area, before calculating the energy consumption per unit added value, in step S1, it is necessary to first obtain the energy consumption data of the target energy and chemical project during the reporting period. This energy consumption data includes: the total net energy consumption within the boundary area and the added value of the project.

[0074] After obtaining the energy consumption data, in step S2, based on the energy consumption data, the ratio of the total net energy consumption within the boundary area to the added value of the project is calculated according to the formula for calculating the energy consumption index per unit added value. The calculation result is the energy consumption per unit added value.

[0075] Furthermore, the energy consumption per unit added value index provided by this invention is a relatively universal energy efficiency evaluation index, which can realize the unified accounting and benchmarking of energy consumption data in the energy and chemical industry, and provide conditions for horizontal comparison of energy consumption in the energy and chemical industry.

[0076] Since all manufacturing industries must exchange energy consumption for economic and ecological benefits, achieving maximum efficiency with minimal energy consumption is the current pursuit of enterprises both domestically and internationally. Comparing energy consumption per unit of added value can effectively identify projects that better align with green development principles, thereby prompting enterprises to reduce energy consumption.

[0077] The energy consumption index calculation method for the energy and chemical industry provided by this invention obtains the energy consumption data of the target energy and chemical project during the reporting period, and calculates the energy consumption per unit of added value according to the calculation formula of the energy consumption per unit of added value index. This invention proposes energy consumption per unit of added value as a new evaluation index for energy and chemical industry energy consumption, making the energy consumption index universal and able to meet the accounting of various types of energy and chemical industry energy consumption with the same calculation standard, so as to adapt to the national energy consumption assessment system in the new development stage and promote further reduction of energy consumption by integrated energy and chemical enterprises.

[0078] Optionally, according to the energy and chemical energy consumption index calculation method provided by the present invention, the added value of the project includes: the added value of the project calculated at constant prices and the added value of the project calculated at market prices;

[0079] Correspondingly, the calculation formulas for the energy consumption per unit of added value include: the calculation formula for the energy consumption per 10,000 yuan of added value of the project at constant prices during the reporting period and the calculation formula for the energy consumption per 10,000 yuan of added value of the project at market prices during the reporting period.

[0080] The formula for calculating the energy consumption index per 10,000 yuan of added value for projects during the reporting period at constant prices is as follows:

[0081]

[0082] The formula for calculating the energy consumption index per 10,000 yuan of added value for projects during the reporting period is as follows:

[0083]

[0084] In the formula, E CP Energy consumption per 10,000 yuan of added value of the project during the reporting period, at constant prices; E MP The energy consumption per 10,000 yuan of added value of the project during the reporting period, based on market prices; ∑E i ΔV represents the total net energy consumption within the boundary area. CP The added value of the project calculated at constant prices; ΔV MP This refers to the added value of the project calculated at market prices.

[0085] Specifically, considering the significant differences in calculating the unit increase in energy consumption based on different price benchmarks, this invention calculates it from two aspects: constant price and market price.

[0086] The added value of the corresponding projects includes: the added value calculated at constant prices and the added value calculated at market prices. The formulas for calculating the energy consumption per unit of added value include: the energy consumption per 10,000 yuan of added value for the project during the reporting period at constant prices and the energy consumption per 10,000 yuan of added value for the project during the reporting period at market prices.

[0087] Furthermore, for ease of calculation, this invention uses energy consumption per unit of added value as the basic unit. Calculations are relatively straightforward for an independent enterprise because its financial data, including the quantity and price of raw materials, water, electricity, gas, and products, as well as labor input and output, are relatively complete. However, calculations for a production facility are more difficult because the facility's inputs and outputs are often intermediate products within the enterprise, neither directly facing the market. In this case, calculations must simulate market prices as closely as possible, ensuring seamless integration of product (raw material) prices between upstream and downstream facilities. The simulated prices for both raw materials and products must be closely related to their composition, physical properties, and state. These fundamental tasks must be consistently maintained, continuously improved, and updated over time.

[0088] Based on the energy consumption per 10,000 yuan of output value, the energy consumption per unit of added value is defined as follows:

[0089] The formula for calculating the energy consumption index per 10,000 yuan of added value for projects during the reporting period at constant prices is as follows:

[0090]

[0091] The formula for calculating the energy consumption index per 10,000 yuan of added value for projects during the reporting period is as follows:

[0092]

[0093] In the formula, E CP This represents the energy consumption per 10,000 yuan of added value for the project (enterprise or facility) during the reporting period at constant prices, in MJ·(10 4 RMB￥) -1 E MP The energy consumption per 10,000 yuan of added value of the project during the reporting period is MJ·(10 4 RMB￥) -1 ;∑E i The net energy consumption within the boundary area during the reporting period is MJ; ΔV CP The added value of the project calculated at constant prices; ΔV MP The added value of the project calculated at market prices, 10 4 RMB￥.

[0094] Both of the above formulas can be used to compare the energy consumption of energy and chemical projects (enterprises or facilities) and evaluate their energy efficiency levels. However, when the corresponding added value of the project is zero or negative, i.e., ΔV...CP or ΔV CP When ≤0, ECP and E MP It has lost its meaning.

[0095] The calculation formula based on the value added per 10,000 yuan at constant prices is more suitable for judging the energy consumption changes of the same enterprise (unit) in different statistical periods, while the calculation formula based on the value added per 10,000 yuan at market prices focuses on optimizing the processing scheme of integrated energy and chemical enterprises in order to plan the processing load and product structure of different units in response to changes in market supply and demand, so as to maximize the economic benefits of enterprises and reduce energy consumption.

[0096] The energy consumption index calculation method for the energy and chemical industry provided by this invention obtains the energy consumption data of the target energy and chemical project during the reporting period, and calculates the energy consumption per unit of added value according to the calculation formula of the energy consumption per unit of added value index. This invention proposes energy consumption per unit of added value as a new evaluation index for energy and chemical industry energy consumption, making the energy consumption index universal and able to meet the accounting needs of various energy and chemical industry energy consumption using the same calculation standard. Furthermore, the energy consumption per unit of added value index no longer uses the unit of raw material or unit of product as a benchmark, but rather uses the unit of added value as a benchmark to calculate the energy consumption of the processing process. It is more scientific than energy consumption per unit of output value (energy consumption per 10,000 yuan of output value) because the level of energy consumption per unit of output value cannot determine the energy efficiency level of energy and chemical enterprises (plants), especially for loss-making enterprises (plants).

[0097] Optionally, the energy and chemical energy consumption index calculation method provided by the present invention further includes: the total net energy consumption within the boundary area meets the preset conditions for total net consumption.

[0098] The preset conditions for total net consumption include:

[0099] Intermediate energy products produced and consumed within the boundary area are not included in the total net consumption. Material losses generated during processing and storage within the boundary area are included in the total net consumption, and the raw materials, products or intermediate products corresponding to the inventory stored within the boundary area are respectively included in the total net consumption.

[0100] Specifically, ∑E i It refers to the total amount of energy input within the boundary area minus the total amount of energy products output outside the enterprise (unit) boundary area, excluding the amount of energy used as raw materials and the amount of energy used as products.

[0101] The specific calculation must meet the preset conditions for total net consumption, that is, follow the following three principles:

[0102] ① Various intermediate energy products produced and consumed within the boundary area (such as catalytic coking, coal-fired power generation, etc.) are not included.

[0103] ② Material losses generated during processing, storage, and transportation within the boundary area (such as refinery dry gas used as fuel for heating furnaces) are recorded as equivalent raw material energy in the total energy input to the boundary area.

[0104] ③ Inventory within the boundary area should be separately recorded as the corresponding raw materials, products or intermediate products.

[0105] It is understandable that the reasons for the inconsistency in energy efficiency evaluation indicators for oil refining, petrochemicals, and coal chemicals are twofold. On the one hand, oil refining energy consumption indicators use the energy consumption per unit weight of raw material processed, while petrochemicals and coal chemicals use the energy consumption per unit weight of main product produced. On the other hand, the energy consumption statistics for oil refining and petrochemicals only refer to the energy consumption during the production and processing process, while coal chemicals include the energy of both raw coal and products in the statistical calculation.

[0106] This invention standardizes the calculation of energy consumption per unit of added value for energy and chemical enterprises (plants), including oil refining, petrochemicals, and coal chemicals, by setting preset conditions for total net consumption. This standardization ensures that calculations are applicable to all types of energy and chemical enterprises (plants) and avoids issues similar to the inconsistencies in energy efficiency evaluation indicators for oil refining, petrochemicals, and coal chemicals. It aligns the energy consumption per unit of added value indicator with national and local government energy efficiency assessment indicators for enterprises, enabling them to achieve better economic and ecological benefits under a dual-carbon environment.

[0107] The energy consumption index calculation method for the energy and chemical industry provided by this invention obtains the energy consumption data of the target energy and chemical project during the reporting period, and calculates the energy consumption per unit of added value according to the calculation formula of the energy consumption per unit of added value index. This invention proposes energy consumption per unit of added value as a new evaluation index for energy and chemical industry energy consumption, making the energy consumption index universal and able to meet the accounting needs of various types of energy and chemical industry energy consumption with the same calculation standard. Furthermore, by setting preset conditions for total net consumption, the calculation of the energy consumption per unit of added value index is standardized for energy and chemical enterprises (plants), ensuring the uniformity of the energy consumption index calculation method.

[0108] Optionally, according to the energy and chemical industry energy consumption index calculation method provided by the present invention, obtaining energy consumption data of the target energy and chemical industry project during the reporting period specifically includes:

[0109] Based on gross industrial output, intermediate industrial products, and value-added tax, calculate the value added of a project at constant prices and the value added of a project at market prices according to the value added calculation formula.

[0110] The formula for calculating added value is: Added value = Total industrial output - Industrial intermediate inputs + Value-added tax.

[0111] Specifically, the energy consumption per unit of added value is greatly affected by the prices of raw materials, products, and energy. Energy and chemical enterprises should be market-oriented and flexibly adjust their product structure, optimize equipment operation, and reduce energy consumption to the greatest extent possible. To increase applicability, the added value of a project (enterprise or equipment) is calculated directly using the production method, i.e., the added value calculation formula is: Added Value = Total Industrial Output - Industrial Intermediate Inputs + Value Added Tax.

[0112] Before calculating value added, it is necessary to collect data on gross industrial output, intermediate industrial products, and value-added tax. Both constant prices and market prices can be used to determine the corresponding gross industrial output and intermediate industrial inputs.

[0113] When calculating value added, the collected gross industrial output, industrial intermediate products and value-added tax are substituted into the value added calculation formula to determine the value added of the item calculated at constant prices and the value added of the item calculated at market prices.

[0114] It is understandable that the value added of a project calculated at constant prices can be obtained from the gross industrial output value corresponding to constant prices, and the value added of a project calculated at market prices can be obtained from the gross industrial output value corresponding to market prices.

[0115] The energy consumption index calculation method for the energy and chemical industry provided by this invention obtains the energy consumption data of the target energy and chemical project during the reporting period, and calculates the energy consumption per unit of added value according to the calculation formula of the energy consumption per unit of added value index. This invention proposes energy consumption per unit of added value as a new evaluation index for energy and chemical industry energy consumption, making the energy consumption index universal and able to meet the accounting needs of various types of energy and chemical industry energy consumption with the same calculation standard. Furthermore, the energy consumption per unit of added value index no longer uses the unit of raw material or unit of product as the benchmark, but uses the unit of added value as the benchmark to calculate the energy consumption of the processing process. It is more scientific than energy consumption per unit of output value (energy consumption per 10,000 yuan of output value) and can accurately reflect the energy consumption of the project.

[0116] Optionally, according to the energy and chemical energy consumption index calculation method provided by the present invention, the value added calculation formula includes: a value added calculation formula for the project calculated at constant prices and a value added calculation formula for the project calculated at market prices;

[0117] The formula for calculating the added value of a project at constant prices is as follows:

[0118] ΔV CP = Total sales revenue of the statistical boundary area (at constant prices) - Total processing costs (at constant prices) + Value-added tax;

[0119] The formula for calculating the added value of a project based on market prices is as follows:

[0120] ΔV MP = Total sales revenue (market price) of the statistical boundary area - Total processing costs (market price) + Value-added tax.

[0121] Specifically, since both constant prices and market prices can determine the corresponding gross industrial output and intermediate industrial inputs, the value-added calculation formula is divided into a value-added calculation formula for projects calculated at constant prices and a value-added calculation formula for projects calculated at market prices, depending on the price conditions.

[0122] The formula for calculating the added value of a project at constant prices is as follows:

[0123] ΔV CP = Total sales revenue of the statistical boundary area (at constant prices) - Total processing costs (at constant prices) + Value-added tax;

[0124] The formula for calculating the added value of a project based on market prices is as follows:

[0125] ΔV MP = Total sales revenue (market price) of the statistical boundary area - Total processing costs (market price) + Value-added tax.

[0126] The energy consumption index calculation method for the energy and chemical industry provided by this invention obtains the energy consumption data of the target energy and chemical project during the reporting period, and calculates the energy consumption per unit of added value according to the calculation formula of the energy consumption per unit of added value index. This invention proposes energy consumption per unit of added value as a new evaluation index for energy and chemical industry energy consumption, making the energy consumption index universal and able to meet the accounting needs of various types of energy and chemical industry energy consumption with the same calculation standard. Furthermore, the energy consumption per unit of added value index no longer uses the unit of raw material or unit of product as the benchmark, but uses the unit of added value as the benchmark to calculate the energy consumption of the processing process. It is more scientific than energy consumption per unit of output value (energy consumption per 10,000 yuan of output value) and can accurately reflect the energy consumption of the project.

[0127] Optionally, the energy and chemical energy consumption index calculation method provided by the present invention further includes: industrial intermediate inputs must meet preset conditions for intermediate inputs;

[0128] Intermediate input preset conditions include:

[0129] Intermediate inputs must be the value of public works and services purchased from outside the boundary area and the value of products and services put into production and consumed in one go during the statistical period, and must be included in the gross industrial output.

[0130] Specifically, Figure 2 This is a schematic diagram of energy consumption calculation per unit added value provided by the present invention, such as... Figure 2 As shown, the calculation of total sales revenue will not cause ambiguity, but the calculation of intermediate inputs may cause ambiguity. In order to avoid ambiguity leading to inconsistent calculation of energy consumption per unit added value, an intermediate input preset module is set to restrict the calculation of intermediate inputs.

[0131] Intermediate input calculations must meet preset conditions, namely, follow these three principles:

[0132] ① The value of raw materials, fuel, power, and other utilities and services purchased from outside the calculation area must be included, excluding the value of waste materials recovered during the production process and intermediate products.

[0133] ② The value of products and services must be put into production and consumed in one go during the statistical period, excluding the value of fixed asset transfers.

[0134] ③ The calculation method for intermediate inputs must be consistent with that for total output value. That is, the value of products and services included in industrial intermediate inputs must have been included in the total industrial output value, and the impact of inventory must be eliminated.

[0135] The energy consumption index calculation method for the energy and chemical industry provided by this invention obtains the energy consumption data of the target energy and chemical project during the reporting period, and calculates the energy consumption per unit of added value according to the calculation formula of the energy consumption per unit of added value index. This invention proposes energy consumption per unit of added value as a new evaluation index for energy and chemical industry energy consumption, making the energy consumption index universal and able to meet the accounting needs of various types of energy and chemical industry energy consumption with the same calculation standard. Furthermore, the energy consumption per unit of added value index no longer uses the unit of raw material or unit of product as a benchmark, but uses the unit of added value as a benchmark to calculate the energy consumption of the processing process. This fully considers the influence of raw materials, products, energy, power, and taxes on the energy consumption per unit of added value index. It is more scientific than energy consumption per unit of output value (energy consumption per 10,000 yuan of output value) and can accurately reflect the energy consumption of the project.

[0136] Optionally, according to the energy and chemical energy consumption index calculation method provided by the present invention, before the step of calculating the added value of the project calculated at constant prices and the added value of the project calculated at market prices based on the total industrial output value, industrial intermediate products, and value-added tax, according to the added value calculation formula, the method further includes:

[0137] Calculate the value-added tax (VAT) based on tax data and the VAT calculation formula.

[0138] The tax data includes: output tax, input tax, input tax transferred out, export tax refund, tax reduction and exemption, export tax credit to domestic sales, beginning balance of undeducted amount and ending balance of undeducted amount;

[0139] The formula for calculating value-added tax is:

[0140] Value Added Tax (VAT) = (Output VAT - Input VAT + Input VAT Transferred Out) + (Export Tax Refund - Tax Reduction / Exemption - Export Tax Offset for Domestic Sales) + (Beginning Balance - Ending Balance).

[0141] Specifically, in addition to the output tax and input tax for the current period, value-added tax (VAT) must also take into account factors such as export tax refunds and tax reductions / exemptions. Therefore, a VAT calculation formula is designed based on the tax data that needs to be considered.

[0142] Tax data includes: output tax, input tax, input tax transferred out, export tax refund, tax reduction and exemption, export tax credit against domestic sales tax payable, beginning balance of undeducted tax, and ending balance of undeducted tax.

[0143] The formula for calculating value-added tax is:

[0144] Value Added Tax (VAT) = (Output VAT - Input VAT + Input VAT Transferred Out) + (Export Tax Refund - Tax Reduction / Exemption - Export Tax Offset for Domestic Sales) + (Beginning Balance - Ending Balance).

[0145] When calculating value-added tax (VAT), the tax data is substituted into the VAT calculation formula to obtain the VAT.

[0146] The energy consumption index calculation method for the energy and chemical industry provided by this invention obtains the energy consumption data of the target energy and chemical project during the reporting period, and calculates the energy consumption per unit of added value according to the calculation formula of the energy consumption per unit of added value index. This invention proposes energy consumption per unit of added value as a new evaluation index for energy and chemical industry energy consumption, making the energy consumption index universal and able to meet the accounting needs of various types of energy and chemical industry energy consumption with the same calculation standard. Furthermore, the energy consumption per unit of added value index no longer uses the unit of raw material or unit of product as a benchmark, but uses the unit of added value as a benchmark to calculate the energy consumption of the processing process. This fully considers the influence of raw materials, products, energy, power, and taxes on the energy consumption per unit of added value index. It is more scientific than energy consumption per unit of output value (energy consumption per 10,000 yuan of output value) and can accurately reflect the energy consumption of the project.

[0147] The method for calculating energy consumption indicators in the energy and chemical industry provided by this invention will be explained using two specific examples, as follows:

[0148] Example 1: Energy consumption calculation for catalytic cracking and catalytic pyrolysis units

[0149] The raw materials, products, added value, and energy consumption structure of the two sets of equipment are shown in Table 3.

[0150] Table 3 Comparison of energy consumption of the two process units ①

[0151]

[0152]

[0153] Note: ① The basic data in the table are taken from the literature (Energy consumption analysis and energy-saving measures of catalytic cracking unit [J]. Refining Technology and Engineering, 2022(7): 52; DCC-plus technology and its product flexibility [J]. Acta Petrolei Sinica (Petroleum Processing), 2019(3): 220; Selected major assignments of catalytic cracking expert training course (second phase) [M]. Beijing: China Petrochemical Press, 2019: 229); The price system is based on the price of internal mutual supply of raw materials (excluding tax) of a certain refining and chemical enterprise, and the processing cost calculation data refers to the data in the literature (Simulation and technical and economic comparison of paraffin-based vacuum wax oil processing scheme [J]. Petrochemical Technology and Application, 2020(2): 139).

[0154] ②The raw materials are deasphalted oil + reduced slag + reduced fourth-line oil, with a density of 912 kg·m³ at 20℃. -3 It contains 12.71% hydrogen and 86.57% carbon; aromatics in gasoline are still used as fuel.

[0155] ③ The feedstock is atmospheric residue + hydrotreated tail oil, with a density of 902 kg·m³ at 20°C. -3 It contains 12.30% hydrogen and 86.72% carbon; the aromatics in gasoline are used as chemical raw materials.

[0156] Table 3 shows that the energy consumption per unit of added value was used to compare the energy consumption of the MIP (Medium-Injection Process) and DCC-PLUS (Durable-Chemical-Plus) processes for heavy oil conversion. The results indicate that the DCC-PLUS process has an 86% higher energy consumption per unit of raw material than the MIP process. This is because the DCC-PLUS process has a much higher reaction depth than the MIP process, resulting in higher heat of reaction and higher energy consumption for product separation. However, calculated using constant prices and average market prices, the added value per unit of raw material for the DCC-PLUS process is 39% higher than that for the MIP process. In terms of energy consumption per 10,000 yuan of output value and energy consumption per 10,000 yuan of added value, the DCC-PLUS process is on average 67% and 28% higher than the MIP process, respectively. Clearly, the energy consumption per 10,000 yuan of added value is more scientific and in line with national green development requirements than the energy consumption per unit of raw material and energy consumption per 10,000 yuan of output value for evaluating the energy efficiency of integrated refining and chemical plants.

[0157] Furthermore, considering both constant and market price systems, the design of the equipment's product offerings and operational flexibility are crucial. Both the MIP and DCC-PLUS processes are catalytic cracking technologies. Under varying market supply and demand conditions, the ability to flexibly adjust product offerings and optimize operating conditions will yield more products in tight markets with high prices, thereby maximizing both economic and ecological benefits.

[0158] Example 2: Energy consumption calculation for two coal-to-olefins process routes

[0159] Table 4 shows the feedstock, product, added value, and energy consumption structure of the coal gasification-synthetic methanol-to-olefins (CVMTO) process route and the coal gasification-Fischer-Tropsch synthesis oil-catalytic cracking to olefins (CVOTO) process route.

[0160] Table 4 Comparison of energy consumption between two coal-to-olefins processes ①

[0161]

[0162]

[0163] Note: ① The pricing system is based on the price of internal feedstock supply (excluding tax) of a certain refining and chemical enterprise. The processing cost calculation data is based on the data in the literature (Selected Works of Catalytic Cracking Expert Training Course (Second Session) [M]. Beijing: China Petrochemical Press, 2019: 229); the energy consumption data is calculated according to the unit product quota of China Petrochemical Corporation.

[0164] ②The basic yield data of the coal-to-methanol-to-olefins process route are extracted from the industrial calibration data of the literature (Coal-to-Low-Carbon Olefins Technology and Engineering [M]. Beijing: Chemical Industry Press, 2014: 360).

[0165] ③ The process route for producing olefins from coal via synthetic oil is based on simulation calculations using industrial data from indirect coal-to-oil production (reference: Methanol to Olefins [M]. Beijing: Science Press, 2015: 436) and pilot-scale data from FT synthetic oil to olefins (Research and Discussion on the Processing Route for Chemical Production from FT Synthetic Oil [J]. Refining Technology and Engineering, 2022(8):21).

[0166] Table 4 shows that, for both coal-to-olefins (CVMTO) and CVOTO processes, the CVMTO process consumes 37% less energy per unit of product than the CVOTO process, while the CVMTO process consumes 33% more energy per unit of raw material. Comparing the efficiency per unit of added value from raw materials, calculated at constant prices and average market prices, the CVMTO process consumes 19% more energy than the CVOTO process. In terms of energy consumption per 10,000 yuan of output value, the CVMTO process is on average 9% higher than the CVOTO process; however, in terms of energy consumption per 10,000 yuan of added value, the CVMTO process is on average 48% lower than the CVOTO process.

[0167] Similar to Table 3, the price system has a significant impact on the energy consumption of these two process routes. A comparison of the two coal-to-olefins (CVMTO) process routes using energy consumption per unit of added value shows that, based on constant prices, the CVMTO process route has 134% higher added value per unit of raw material and 43% lower energy consumption per 10,000 yuan of added value compared to the CVOTO process route; however, based on market prices, the CVMTO process route has 4.4% higher added value per unit of raw material and 36% lower energy consumption per 10,000 yuan of added value compared to the CVOTO process route.

[0168] Overall, compared to the CVMTO process, the CVOTO process has a clear comparative advantage when BTX aromatics and gasoline prices are higher. This result fundamentally contradicts past understandings, as many industry professionals previously believed that coal-to-olefins (CTO) via methanol was more direct, while coal-to-oil and then oil-to-olefins was an extra step and theoretically untenable. However, further analysis reveals that the CVMTO process first converts coal to methanol, which has an oxygen content as high as 50%. In the next step, methanol must be dehydrated before it can be converted into olefins. Therefore, in both the syngas-to-methanol and methanol-to-olefins processes, over 50% of the material energy utilization efficiency is very low. In contrast, the CVOTO process produces not only low-carbon olefins but also a large amount of oil and cracked gas. If high-value products from FT synthetic oil (such as α-olefins and specialty waxes) can be effectively utilized, the competitive advantage of the CVOTO process will become even more pronounced.

[0169] Figure 3 This is a schematic diagram of the energy consumption index calculation system for the energy and chemical industry provided by the present invention, as shown in the figure. Figure 3 As shown, the present invention also provides an energy and chemical energy consumption index calculation system, including: a data acquisition unit 301 and an index calculation unit 302;

[0170] Data acquisition unit 301 is used to acquire energy consumption data of the target energy and chemical project during the reporting period; wherein, the energy consumption data includes: the total net energy consumption within the boundary area and the added value of the project;

[0171] The indicator calculation unit 302 is used to calculate the energy consumption per unit of added value based on energy consumption data and according to the energy consumption per unit of added value indicator calculation formula; wherein, in the energy consumption per unit of added value indicator calculation formula, the energy consumption per unit of added value is the ratio of the total net energy consumption within the boundary area to the added value of the project.

[0172] Specifically, the development direction of energy and chemical enterprises is to use fossil energy such as oil, natural gas and coal, and renewable energy such as biomass to produce electricity, clean oil products and clean energy such as hydrogen, as well as high-end carbon materials. There will be more and more integrated coal-oil-gas-chemical enterprises.

[0173] For integrated energy and chemical enterprises that use coal, oil, natural gas and biomass as raw materials, this invention proposes a new energy efficiency evaluation index and specific calculation formula for energy consumption per unit added value. In the calculation formula for energy consumption per unit added value, energy consumption per unit added value is the ratio of the total net energy consumption within the boundary area to the added value of the project.

[0174] Understandably, after determining the target energy and chemical project (corresponding enterprise or unit), as well as the corresponding reporting period and boundary area, before calculating the energy consumption per unit added value, the data acquisition unit 301 is used to obtain the energy consumption data of the target energy and chemical project during the reporting period. This energy consumption data includes: the total net energy consumption within the boundary area and the added value of the project.

[0175] After acquiring energy consumption data, the indicator calculation unit 302 is used to calculate the ratio of the total net energy consumption within the boundary area to the added value of the project based on the energy consumption data and the unit added value energy consumption indicator calculation formula. The calculation result is the unit added value energy consumption.

[0176] Furthermore, the energy consumption per unit added value index provided by this invention is a relatively universal energy efficiency evaluation index, which can realize the unified accounting and benchmarking of energy consumption data in the energy and chemical industry, and provide conditions for horizontal comparison of energy consumption in the energy and chemical industry.

[0177] Since all manufacturing industries must exchange energy consumption for economic and ecological benefits, achieving maximum efficiency with minimal energy consumption is the current pursuit of enterprises both domestically and internationally. Comparing energy consumption per unit of added value can effectively identify projects that better align with green development principles, thereby prompting enterprises to reduce energy consumption.

[0178] The energy and chemical industry energy consumption index calculation system provided by this invention obtains the energy consumption data of the target energy and chemical project during the reporting period and calculates the energy consumption per unit of added value according to the calculation formula of the energy consumption per unit of added value index. This invention proposes energy consumption per unit of added value as a new evaluation index for energy and chemical industry energy consumption, making the energy consumption index universal and able to meet the accounting of various types of energy and chemical industry energy consumption with the same calculation standard, so as to adapt to the national energy consumption assessment system in the new development stage and promote further reduction of energy consumption by integrated energy and chemical enterprises.

[0179] It should be noted that the energy and chemical energy consumption index calculation system provided by the present invention is used to execute the above-mentioned energy and chemical energy consumption index calculation method. Its specific implementation method is the same as the method implementation method, and will not be repeated here.

[0180] Figure 4 This is a schematic diagram of the physical structure of the electronic device provided by the present invention, such as... Figure 4As shown, the electronic device may include: a processor 401, a communication interface 402, a memory 403, and a communication bus 404. The processor 401, communication interface 402, and memory 403 communicate with each other via the communication bus 404. The processor 401 can call logical instructions in the memory 403 to execute an energy and chemical industry energy consumption index calculation method. This method includes: acquiring energy consumption data for the target energy and chemical project during the reporting period; wherein the energy consumption data includes: the total net energy consumption within the boundary area and the project's added value; based on the energy consumption data, calculating the unit added value energy consumption according to the unit added value energy consumption index calculation formula; wherein, in the unit added value energy consumption index calculation formula, the unit added value energy consumption is the ratio of the total net energy consumption within the boundary area to the project's added value.

[0181] Furthermore, the logical instructions in the aforementioned memory 403 can be implemented as software functional units and, when sold or used as independent products, can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present invention, in essence, or the part that contributes to the prior art, or a part of the technical solution, can be embodied in the form of a software product. This computer software product is stored in a storage medium and includes several instructions to cause a computer device (which may be a personal computer, server, or network device, etc.) to execute all or part of the steps of the methods of the various embodiments of the present invention. The aforementioned storage medium includes various media capable of storing program code, such as USB flash drives, portable hard drives, read-only memory (ROM), random access memory (RAM), magnetic disks, or optical disks.

[0182] On the other hand, the present invention also provides a computer program product, which includes a computer program stored on a non-transitory computer-readable storage medium. The computer program includes program instructions, and when the program instructions are executed by a computer, the computer is able to execute the energy and chemical energy consumption index calculation method provided by the above methods. The method includes: obtaining energy consumption data of the target energy and chemical project during the reporting period; wherein, the energy consumption data includes: the total net energy consumption within the boundary area and the added value of the project; based on the energy consumption data, calculating the energy consumption per unit added value according to the energy consumption index calculation formula per unit added value; wherein, in the energy consumption index calculation formula per unit added value, the energy consumption per unit added value is the ratio of the total net energy consumption within the boundary area to the added value of the project.

[0183] In another aspect, the present invention also provides a non-transitory computer-readable storage medium storing a computer program thereon. When executed by a processor, the computer program performs the above-mentioned energy and chemical energy consumption index calculation methods. The method includes: acquiring energy consumption data of a target energy and chemical project during the reporting period; wherein the energy consumption data includes: the total net energy consumption within the boundary area and the added value of the project; based on the energy consumption data, calculating the energy consumption per unit added value according to the energy consumption index calculation formula; wherein, in the energy consumption index calculation formula, the energy consumption per unit added value is the ratio of the total net energy consumption within the boundary area to the added value of the project.

[0184] The device embodiments described above are merely illustrative. The units described as separate components may or may not be physically separate, and the components shown as units may or may not be physical units; that is, they may be located in one place or distributed across multiple network units. Some or all of the modules can be selected to achieve the purpose of this embodiment according to actual needs. Those skilled in the art can understand and implement this without any creative effort.

[0185] Through the above description of the embodiments, those skilled in the art can clearly understand that each embodiment can be implemented by means of software plus necessary general-purpose hardware platforms, and of course, it can also be implemented by hardware. Based on this understanding, the above technical solutions, in essence or the part that contributes to the prior art, can be embodied in the form of a software product. This computer software product can be stored in a computer-readable storage medium, such as ROM / RAM, magnetic disk, optical disk, etc., including several instructions to cause a computer device (which may be a personal computer, server, or network device, etc.) to execute the methods of various embodiments or some parts of embodiments.

[0186] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A method for calculating energy consumption indicators in the energy and chemical industry, characterized in that, include: Obtain energy consumption data for the target energy and chemical project during the reporting period; wherein, the energy consumption data includes: the total net energy consumption within the boundary area and the added value of the project; Based on the energy consumption data, the energy consumption per unit of added value is calculated according to the formula for calculating the energy consumption per unit of added value; wherein, in the formula for calculating the energy consumption per unit of added value, the energy consumption per unit of added value is the ratio of the total net energy consumption within the boundary area to the added value of the project. The added value of the project includes: the added value of the project calculated at constant prices and the added value of the project calculated at market prices; Correspondingly, the calculation formula for the unit added value energy consumption index includes: the calculation formula for the added value energy consumption index per 10,000 yuan of the project at constant prices during the reporting period and the calculation formula for the added value energy consumption index per 10,000 yuan of the project at market prices during the reporting period; The formula for calculating the energy consumption index per 10,000 yuan of added value for the project during the reporting period at constant prices is as follows: ； The formula for calculating the energy consumption index per 10,000 yuan of added value for the projects during the reporting period is as follows: ； In the formula, E CP Energy consumption per 10,000 yuan of added value of the project during the reporting period, at constant prices; E MP The energy consumption per 10,000 yuan of added value of the project during the reporting period, based on market prices; ∑E i ΔV represents the total net energy consumption within the boundary area. CP The added value of the project calculated at constant prices; ΔV MP This refers to the added value of the project calculated at market prices.

2. The method for calculating energy consumption indicators in the energy and chemical industry according to claim 1, characterized in that, Also includes: The total net energy consumption within the boundary area meets the preset conditions for total net energy consumption. The preset conditions for the total net consumption include: Intermediate energy products produced and consumed within the boundary area are not included in the total net consumption. Material losses generated during processing and storage within the boundary area are included in the total net consumption. Raw materials, products, or intermediate products corresponding to inventory stored within the boundary area are also included in the total net consumption.

3. The method for calculating energy consumption indicators in the energy and chemical industry according to claim 1, characterized in that, The acquisition of energy consumption data for the target energy and chemical project during the reporting period specifically includes: Based on gross industrial output, intermediate industrial products, and value-added tax, calculate the value added of a project at constant prices and the value added of a project at market prices according to the value added calculation formula. The formula for calculating added value is: Added value = Total industrial output value - Industrial intermediate inputs + Value-added tax.

4. The method for calculating energy consumption indicators in the energy and chemical industry according to claim 3, characterized in that, The value added calculation formulas include: a value added calculation formula for a project calculated at constant prices and a value added calculation formula for a project calculated at market prices; The formula for calculating the added value of the project at constant prices is as follows: ΔV CP =Total sales revenue (at constant prices) in the statistical area - Total processing costs (at constant prices) + Value-added tax; The formula for calculating the added value of the project based on market prices is as follows: ΔV MP =Total sales revenue (market price) of the statistical boundary area - Total processing costs (market price) + Value-added tax.

5. The method for calculating energy consumption indicators in the energy and chemical industry according to claim 3, characterized in that, Also includes: The industrial intermediate inputs must meet the preset conditions for intermediate inputs; The intermediate input preset conditions include: The intermediate inputs must be the value of public works and services purchased from outside the boundary area and the value of products and services put into production and consumed in one go during the statistical period, and must be included in the gross industrial output.

6. The method for calculating energy consumption indicators in the energy and chemical industry according to any one of claims 3-5, characterized in that, Before the step of calculating the added value of a project at constant prices and the added value of a project at market prices based on the gross industrial output, intermediate industrial products, and value-added tax, according to the added value calculation formula, the method further includes: Calculate the value-added tax (VAT) based on tax data and the VAT calculation formula. The tax data includes: output tax, input tax, input tax transferred out, export tax refund, tax reduction and exemption, export tax payable against domestic sales, beginning balance not deducted, and ending balance not deducted. The formula for calculating value-added tax is as follows: Value Added Tax (VAT) = (Output VAT - Input VAT + Input VAT Transferred Out) + (Export Tax Refund - Tax Reduction / Exemption - Export Tax Offset to Domestic Sales) + (Beginning Balance - Ending Balance).

7. An energy and chemical industry energy consumption index calculation system, characterized in that, include: Data acquisition unit and indicator calculation unit; The data acquisition unit is used to acquire energy consumption data of the target energy and chemical project during the reporting period; wherein, the energy consumption data includes: the total net energy consumption within the boundary area and the added value of the project; The indicator calculation unit is used to calculate the unit added value energy consumption based on the energy consumption data and according to the unit added value energy consumption indicator calculation formula; wherein, in the unit added value energy consumption indicator calculation formula, the unit added value energy consumption is the ratio of the total net energy consumption within the boundary area to the added value of the project.

8. An electronic device, characterized in that, It includes a memory and a processor, the processor and the memory communicating with each other via a bus; the memory stores program instructions that can be executed by the processor, and the processor can execute the energy and chemical energy consumption index calculation method as described in any one of claims 1 to 6 by calling the program instructions.

9. A non-transitory computer-readable storage medium having a computer program stored thereon, characterized in that, When executed by a processor, the computer program implements the energy and chemical energy consumption index calculation method as described in any one of claims 1 to 6.

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