Method and system for evaluating flue gas ultra-low emission technology covering full life cycle

Abstract

The invention relates to a method and a system for evaluating a flue gas ultra-low emission technology covering a full life cycle. The method comprises the following steps: determining an evaluation object, and defining an evaluation boundary as the full life cycle of the evaluation object from raw material acquisition, equipment manufacturing, installation and debugging, operation maintenance, decommissioning disposal and resource utilization; collecting activity data in each stage of a full life cycle; establishing a multi-dimensional evaluation index system including an environment dimension, an economic dimension and a technical dimension, performing quantitative calculation on each index in the multi-dimensional evaluation index system based on a full life cycle evaluation method according to the collected data, and generating a comprehensive evaluation index and a subdivision report of each dimension; and outputting a comprehensive evaluation index and a full-life-cycle environmental impact analysis report conforming to an international standard. According to the method, the full life cycle theory is introduced into the flue gas ultra-low emission technology evaluation, the environmental and economic influences of the whole stage of the technology are covered, and the limitation of traditional end evaluation is broken through.

Description

Technical Field

[0001] This invention relates to the field of flue gas emission technology, and in particular to an evaluation method and system for ultra-low emission technologies of flue gas covering the entire life cycle. Background Technology

[0002] The steel industry is a key sector for air pollution control in my country. To promote green and low-carbon transformation, ultra-low emission retrofitting has become a core measure for the high-quality development of the steel industry. In recent years, numerous policy documents have set clear requirements for ultra-low emissions from steel enterprises, aiming to promote deep reduction of pollutants across the entire industry.

[0003] Current evaluations of ultra-low emission technologies in the steel industry primarily focus on end-of-pipe treatment effectiveness (such as compliance with pollutant emission concentration standards) or on greenhouse gas calculations for ultra-low emission devices from a facility perspective. These approaches have the following limitations:

[0004] The current evaluation has a single evaluation dimension and ignores the system impact: it fails to fully consider the energy and material consumption of ultra-low emission technology throughout its entire life cycle, and also fails to effectively assess the potential secondary pollution risks it may bring.

[0005] Lack of multi-dimensional coupled dynamic analysis: Existing methods are difficult to conduct dynamic and coupled correlation analysis between the techno-economic performance and environmental benefits of ultra-low emission technologies;

[0006] The evaluation standard system is incomplete and the comparability is poor: due to the lack of a standardized evaluation system, the evaluation results of different ultra-low emission technology solutions are not comparable.

[0007] Highly subjective and difficult to align with international standards: Existing evaluation conclusions are often highly subjective due to inconsistent methods, making it difficult to align with internationally accepted evaluation standards and hindering integration into the international trade system.

[0008] To address the one-sidedness of existing evaluation systems, it is urgent to construct a multi-dimensional evaluation system covering the entire life cycle, enabling a comprehensive, objective, and scientific evaluation of ultra-low emission technologies for flue gas, and to participate in relevant ISO standards, which will help adapt to international trade rules and overcome trade barriers. Summary of the Invention

[0009] The purpose of this invention is to provide a method and system for evaluating ultra-low emission technologies of flue gas that covers the entire life cycle, so as to at least solve one of the technical problems existing in the above-mentioned existing evaluation schemes for ultra-low emission technologies of flue gas in the steel industry.

[0010] To achieve the above objectives, this invention provides a method for evaluating ultra-low emission technologies of flue gas covering the entire life cycle, including:

[0011] The evaluation object is determined, and the evaluation boundary is defined as the entire life cycle of the evaluation object, from raw material acquisition, equipment manufacturing, installation and commissioning, operation and maintenance, decommissioning and disposal and resource utilization.

[0012] Collect activity data at each stage of the entire life cycle, including at least technical parameters, energy consumption data, cost data, and environmental monitoring data;

[0013] Establish a multi-dimensional evaluation index system that includes environmental, economic, and technological dimensions. Based on the collected data and the full life cycle evaluation method, quantify and calculate each indicator in the multi-dimensional evaluation index system, and generate a comprehensive evaluation index and detailed reports for each dimension.

[0014] The evaluation results are output, including a comprehensive evaluation index for each indicator and a full life-cycle environmental impact analysis report that conforms to international standards.

[0015] Optionally, the evaluation object is sintering flue gas ultra-low emission technology, coke oven flue gas ultra-low emission technology, or a combination thereof.

[0016] Optionally, when quantifying the indicators related to the environmental dimension in the multi-dimensional evaluation index system, the weights and evaluation thresholds of the pollutants corresponding to each indicator related to the environmental dimension are corrected by combining a dynamic optimization mechanism.

[0017] Optionally, the weights and evaluation thresholds of pollutants corresponding to various indicators related to the environmental dimension can be adjusted in real time or periodically based on the latest technical parameters, policy standards, or changes in the market environment.

[0018] Optionally, when outputting the evaluation results, key energy consumption, pollution generation processes, and collaborative optimization schemes can be identified by combining various technical and economic indicators.

[0019] Based on the same inventive concept, this invention also provides an evaluation system for ultra-low emission technologies of flue gas covering the entire life cycle, including:

[0020] The determination module is used to determine the evaluation object and clarify the evaluation boundary as the entire life cycle of the evaluation object from raw material acquisition, equipment manufacturing, installation and commissioning, operation and maintenance, decommissioning and disposal and resource utilization;

[0021] The data acquisition module is used to collect activity data at each stage of the entire life cycle. The activity data includes at least technical parameters, energy consumption data, cost data, and environmental monitoring data.

[0022] The quantification module is used to establish a multi-dimensional evaluation index system that includes environmental, economic and technological dimensions. Based on the collected data and the full life cycle evaluation method, it quantifies and calculates each indicator in the multi-dimensional evaluation index system and generates a comprehensive evaluation index and detailed reports for each dimension.

[0023] The output module is used to output the evaluation results, which include a comprehensive evaluation index of various indicators and a full life cycle environmental impact analysis report that conforms to international standards.

[0024] Optionally, the evaluation object is sintering flue gas ultra-low emission technology, coke oven flue gas ultra-low emission technology, or a combination thereof.

[0025] Optionally, when the quantification module performs quantification calculations on the indicators related to the environmental dimension in the multi-dimensional evaluation index system, it combines a dynamic optimization mechanism to correct the weights and evaluation thresholds of the pollutants corresponding to each indicator related to the environmental dimension.

[0026] Optionally, the system further includes a dynamic optimization module, which is used to adjust the weights and evaluation thresholds of pollutants corresponding to various indicators related to the environmental dimension in real time or periodically, based on the latest technical parameters, policy standards, or changes in the market environment.

[0027] Optionally, when outputting the evaluation results, the output module combines various technical and economic indicators to identify key energy consumption, pollution-generating processes, and collaborative optimization schemes.

[0028] The evaluation method and system for ultra-low emission flue gas technology covering the entire life cycle provided by this invention has at least one of the following beneficial effects:

[0029] 1) Comprehensiveness: By introducing the whole life cycle theory into the evaluation of ultra-low emission flue gas technology, it covers the environmental and economic impacts of the entire technology stage, breaking through the limitations of traditional end-of-pipe evaluation;

[0030] 2) Scientific nature: By constructing a three-dimensional evaluation system that couples environment, economy and technology, it proposes distinctive indicators such as secondary pollution risk coefficient and full-cycle cost-benefit ratio, so as to achieve a comprehensive quantitative assessment of the environmental benefits, economic benefits and technical feasibility of technology, providing a scientific basis for technology selection, optimization and policy formulation, and supporting the overcoming of trade barriers;

[0031] 3) Practicality: The dynamic optimization mechanism is used to correct the weights and evaluation thresholds of pollutants corresponding to various indicators related to the environmental dimension, which can effectively adapt to technological iteration and policy changes, and provide an operable decision-making tool for enterprise technology upgrading and government environmental supervision.

[0032] 4) Compatibility: The evaluation report adopts internationally accepted standards, making it easy to align with international practices. Attached Figure Description

[0033] Those skilled in the art will understand that the accompanying drawings are provided to better understand the invention and do not constitute any limitation on the scope of the invention. Wherein:

[0034] Figure 1 This is a flowchart of an evaluation method for ultra-low emission flue gas technology covering the entire life cycle, provided as an embodiment of the present invention. Detailed Implementation

[0035] To make the objectives, advantages, and features of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be noted that the drawings are in a very simplified form and use non-precise proportions, and are only used to facilitate and clearly illustrate the purpose of the embodiments of this invention. Please refer to the accompanying drawings to make the objectives, features, and advantages of this invention more apparent and understandable. It should be understood that the structures, proportions, sizes, etc., depicted in the accompanying drawings are only used to complement the content disclosed in the specification, for those skilled in the art to understand and read, and are not intended to limit the implementation conditions of this invention. Any modifications to the structure, changes in proportions, or adjustments to the size, if they are the same as or similar to the effects and objectives achieved by this invention, should still fall within the scope of the technical content disclosed in this invention.

[0036] As used herein, the singular forms “a,” “an,” and “the” include plural objects unless otherwise expressly indicated. As used herein, the term “or” is generally used to include “and / or” unless otherwise expressly indicated. As used herein, the term “a number” is generally used to include “at least one” unless otherwise expressly indicated. As used herein, the term “at least two” is generally used to include “two or more” unless otherwise expressly indicated. Furthermore, the terms “first,” “second,” and “third” are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as “first,” “second,” or “third” may explicitly or implicitly include one or at least two of that feature.

[0037] Reference Figure 1 This embodiment provides a method for evaluating ultra-low emission technologies of flue gas that covers the entire life cycle, including:

[0038] S1. Determine the evaluation object and clarify the evaluation boundary as the entire life cycle of the evaluation object from raw material acquisition, equipment manufacturing, installation and commissioning, operation and maintenance, decommissioning and disposal and resource utilization;

[0039] S2. Collect activity data for each stage of the entire life cycle, wherein the activity data includes at least technical parameters, energy consumption data, cost data, and environmental monitoring data;

[0040] S3. Establish a multi-dimensional evaluation index system that includes environmental, economic and technological dimensions. Based on the collected data and the full life cycle evaluation method, quantify and calculate each indicator in the multi-dimensional evaluation index system, and generate a comprehensive evaluation index and detailed reports for each dimension.

[0041] S4. Output the evaluation results, which include the comprehensive evaluation index of each indicator and a full life cycle environmental impact analysis report that conforms to international standards.

[0042] First, execute S1 to determine the evaluation object and clarify the evaluation boundary as the entire life cycle of the evaluation object, from raw material acquisition, equipment manufacturing, installation and commissioning, operation and maintenance, decommissioning and resource utilization. In this embodiment, the evaluation object is a specific ultra-low emission technology, such as sintering flue gas ultra-low emission technology or coke oven flue gas ultra-low emission technology, or a combination thereof. The evaluation boundary is clarified as the entire stage of ultra-low emission technology from raw material acquisition, equipment manufacturing, installation and commissioning, operation and maintenance, decommissioning and resource utilization, i.e., from cradle to grave. Specifically, the evaluation boundary includes a time range and a spatial range. The time range includes the equipment manufacturing period, system construction period, operation and service period, and decommissioning period, etc. The spatial range includes upstream material and energy procurement, downstream by-product and waste sales and treatment, etc., as well as ultra-low emission devices.

[0043] Then, S2 is executed to collect activity data in each stage of the entire life cycle. The activity data includes at least technical parameters, energy consumption data, cost data, and environmental monitoring data, such as LCA during the equipment manufacturing period, energy and material consumption during the construction period, energy consumption during the operation and service period, material consumption during the production process, various environmental protection indicators, and the types and quantities of by-products. Data sources cover enterprise production records, supply and sales vouchers, project as-built drawings, and third-party testing reports, etc.

[0044] Next, execute S3 to establish a multi-dimensional evaluation index system that includes environmental, economic, and technological dimensions. Based on the collected data and the full life cycle evaluation method, quantify and calculate each indicator in the multi-dimensional evaluation index system, and generate a comprehensive evaluation index and detailed reports for each dimension.

[0045] In this embodiment, the multi-dimensional evaluation index system covers three core dimensions: environment, economy, and technology, with each dimension having sub-indicators:

[0046] Environmental dimension: including full-cycle greenhouse gas emissions (CFP), pollutant input and output intensity (SO2, NO). x(e.g., particulate matter, carbon monoxide, volatile organic compounds, etc.), energy consumption intensity (energy consumption per 10,000 cubic meters of flue gas or per ton of ore), secondary pollution risk coefficient (environmental impact of by-product disposal), etc.

[0047] Economic dimensions: total investment cost (equipment purchase, installation, operation and maintenance costs), unit pollutant treatment cost (cost per 10,000 cubic meters of flue gas or per ton of ore), return on investment, and life cycle cost-benefit ratio.

[0048] Technical dimensions: pollutant removal efficiency, equipment operational reliability (failure downtime rate), technology compatibility (matching degree with existing processes), level of automation control, and technology maturity (pilot / industrialization stage).

[0049] Then, emission factors are calculated from the activity data, and greenhouse gas and environmental pollutant emissions are calculated using mainstream analysis tools and databases, including SimaPro, Gabi, and OYLCA for the steel industry. A comprehensive evaluation index is then calculated by assigning weights, generating detailed reports for each dimension and functional unit indicators, such as the unit flue gas volume treated and the unit product indicators.

[0050] Preferably, when quantifying the indicators related to the environmental dimension in the multi-dimensional evaluation index system, a dynamic optimization mechanism is used to correct the weights and evaluation thresholds of the pollutants corresponding to each indicator related to the environmental dimension. For example, a data update interface can be set up to correct the weights and evaluation thresholds of the pollutants corresponding to each indicator related to the environmental dimension in real time or periodically based on the latest technical parameters, policy standards, or changes in the market environment. This dynamic optimization mechanism can adapt to technological iterations and policy changes, providing an operable decision-making tool for enterprise technology upgrades and government environmental supervision.

[0051] Finally, step S4 is executed to output the evaluation results. These results include a comprehensive evaluation index for each indicator and a life-cycle environmental impact analysis report conforming to international standards. Combining various technical and economic indicators, the report identifies key energy consumption and pollution-generating processes, as well as collaborative optimization schemes. Preferably, the life-cycle environmental impact analysis report includes a carbon footprint analysis, which can adopt internationally accepted standards such as ISO 14066, ISO 14067, and the ISO 14040 series to facilitate international alignment.

[0052] This embodiment uses the integrated activated carbon desulfurization and denitrification technology for flue gas in a steel enterprise as an example to explain the evaluation process in detail:

[0053] Data collection throughout the entire life cycle: steel consumption during equipment manufacturing, activated carbon consumption and electricity consumption during operation, and equipment recycling rate during decommissioning.

[0054] Indicator Quantification Calculation: The full-cycle CO2 emissions are calculated using LCA software, and the unit treatment cost is calculated by combining the enterprise's financial data. The continuous fault-free operation time of the equipment is statistically analyzed to evaluate reliability.

[0055] Comprehensive evaluation results: Generate a carbon footprint report and a full life cycle environmental impact analysis report for ultra-low emission technologies; and identify key energy consumption, pollution generation links, and collaborative optimization schemes by combining various technical and economic indicators.

[0056] Based on the same inventive concept, embodiments of the present invention also provide an evaluation system for ultra-low emission technologies of flue gas covering the entire life cycle, including:

[0057] The determination module is used to determine the evaluation object and clarify the evaluation boundary as the entire life cycle of the evaluation object from raw material acquisition, equipment manufacturing, installation and commissioning, operation and maintenance, decommissioning and disposal and resource utilization;

[0058] The data acquisition module is used to collect activity data at each stage of the entire life cycle. The activity data includes at least technical parameters, energy consumption data, cost data, and environmental monitoring data.

[0059] The quantification module is used to establish a multi-dimensional evaluation index system that includes environmental, economic, and technological dimensions. Based on the collected data and the full life cycle evaluation method, it quantifies and calculates each indicator in the multi-dimensional evaluation index system and generates a comprehensive evaluation index.

[0060] The output module is used to output the evaluation results, which include a comprehensive evaluation index of various indicators and a full life cycle environmental impact analysis report that conforms to international standards.

[0061] Preferably, the evaluation object is sintering flue gas ultra-low emission technology, coke oven flue gas ultra-low emission technology, or a combination thereof.

[0062] Preferably, when the quantification module performs quantification calculations on the indicators related to the environmental dimension in the multi-dimensional evaluation index system, it combines a dynamic optimization mechanism to correct the weights of pollutants corresponding to each indicator related to the environmental dimension.

[0063] Preferably, the system further includes a dynamic optimization module, which is used to adjust the weights of pollutants corresponding to various indicators related to the environmental dimension in real time or periodically based on the latest technical parameters, policy standards or changes in the market environment.

[0064] Preferably, the full life cycle environmental impact analysis report includes a carbon footprint analysis.

[0065] In summary, the embodiments of the present invention provide a method and system for evaluating ultra-low emission flue gas technologies covering the entire life cycle. By constructing a four-layer evaluation framework of "life cycle stage division - construction of a multi-dimensional evaluation index system - quantitative evaluation - dynamic optimization mechanism", it achieves a comprehensive quantitative assessment of the environmental benefits, economic benefits and technical feasibility of the technology. It can provide a scientific basis for technology selection, optimization and policy formulation, as well as support for overcoming trade barriers.

[0066] Furthermore, it should be understood that although the present invention has been disclosed above with reference to preferred embodiments, these embodiments are not intended to limit the present invention. For any person skilled in the art, many possible variations and modifications can be made to the technical solutions of the present invention based on the disclosed technical content, or equivalent embodiments can be modified accordingly, without departing from the scope of the present invention. Therefore, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present invention, without departing from the content of the present invention, shall still fall within the scope of protection of the present invention.

Claims

1. A full life cycle flue gas ultra-low emission technology evaluation method, characterized in that, The method comprises the following steps: determining an evaluation object and defining the evaluation boundary as the full life cycle of the evaluation object from raw material acquisition, equipment manufacturing, installation and commissioning, operation and maintenance, decommissioning and disposal, and resource utilization; collecting activity data in each stage of the full life cycle, the activity data at least including technical parameters, energy consumption data, cost data, and environmental monitoring data; establishing a multi-dimensional evaluation index system including environmental dimension, economic dimension, and technical dimension, quantitatively calculating each index in the multi-dimensional evaluation index system based on the collected data and the full life cycle evaluation method, and generating a comprehensive evaluation index and a dimension subdivision report; outputting an evaluation result, the evaluation result including a comprehensive evaluation index of each index and a full life cycle environmental impact analysis report conforming to international standards.

2. The full life cycle covered flue gas ultra-low emission technology evaluation method according to claim 1, characterized in that, The evaluation object is sintering flue gas ultra-low emission technology, coke oven flue gas ultra-low emission technology, or a combination thereof.

3. The full life cycle covered flue gas ultra-low emission technology evaluation method according to claim 2, characterized in that, When quantitatively calculating the indexes related to the environmental dimension in the multi-dimensional evaluation index system, the weights and evaluation thresholds of the pollutants corresponding to each index related to the environmental dimension are corrected in combination with a dynamic optimization mechanism.

4. The full life cycle covered flue gas ultra-low emission technology evaluation method according to claim 3, characterized in that, According to the latest technical parameters, policy standards, or market environment changes, the weights and evaluation thresholds of the pollutants corresponding to each index related to the environmental dimension are corrected in real time or periodically.

5. The full life cycle evaluation method for ultra-low emission technology of flue gas according to claim 1, characterized in that, When outputting the evaluation result, the key energy consumption, pollution production links, and synergistic optimization schemes are determined in combination with each technical index and economic index.

6. A full life cycle flue gas ultra-low emission technology evaluation system, characterized in that, The method comprises the following steps: a determining module for determining an evaluation object and defining the evaluation boundary as the full life cycle of the evaluation object from raw material acquisition, equipment manufacturing, installation and commissioning, operation and maintenance, decommissioning and disposal, and resource utilization; a data collection module for collecting activity data in each stage of the full life cycle, the activity data at least including technical parameters, energy consumption data, cost data, and environmental monitoring data; a quantification module for establishing a multi-dimensional evaluation index system including environmental dimension, economic dimension, and technical dimension, quantitatively calculating each index in the multi-dimensional evaluation index system based on the collected data and the full life cycle evaluation method, and generating a comprehensive evaluation index and a dimension subdivision report; an output module for outputting an evaluation result, the evaluation result including a comprehensive evaluation index of each index and a full life cycle environmental impact analysis report conforming to international standards.

7. The system for evaluating flue gas ultra-low emission technology throughout the life cycle according to claim 6, wherein, The evaluation object is sintering flue gas ultra-low emission technology, coke oven flue gas ultra-low emission technology, or a combination thereof. 8.The system for evaluating flue gas ultra-low emission technology throughout the life cycle according to claim 6, wherein, When quantitatively calculating the indexes related to the environmental dimension in the multi-dimensional evaluation index system, the weights and evaluation thresholds of the pollutants corresponding to each index related to the environmental dimension are corrected in combination with a dynamic optimization mechanism. 9.The system for evaluating flue gas ultra-low emission technology throughout the life cycle according to claim 8, wherein, The system further comprises a dynamic optimization module for correcting the weights and evaluation thresholds of the pollutants corresponding to each index related to the environmental dimension in real time or periodically according to the latest technical parameters, policy standards, or market environment changes. 10.The system for evaluating flue gas ultra-low emission technology throughout the life cycle according to claim 6, wherein, When outputting the evaluation result, the key energy consumption, pollution production links, and synergistic optimization schemes are determined in combination with each technical index and economic index.

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