提高能源密集型工业二氧化碳吸附生命周期评估的可比性和可靠性的建议方法框架

IF 10.1 1区 工程技术 Q1 ENERGY & FUELS
Yipeng Yao, Marie-Eve Duprez, Guy De Weireld
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引用次数: 0

摘要

在各种CO2捕集技术中,吸附捕集具有操作灵活、低污染物排放和低能耗等特点,是一种新兴的、有前景的技术。预计它将在碳捕获和储存系统中发挥关键作用。虽然生命周期评估(LCA)已成为评估该技术对环境影响的共识方法,但LCA应用方法的异质性限制了研究结果的可比性和可信度。本研究系统回顾了2006年至2025年间发表的31项LCA研究,从四个方面考察了方法的共性和差异:目标和范围定义、清单分析、影响评估和解释。目前的LCA方法标准和指导方针被用作基准,以分析二氧化碳吸附LCA方法中的挑战和机遇,并提出一个方法框架。研究结果表明,LCA方法之间存在共性(如功能单元)和差异性(如系统边界、生命周期阶段和过程阶段对齐)。此外,与现有标准和准则相比,目前的方法应用显示出明显的差距(例如,缺乏数据质量评价和显著性水平分类)。因此,我们提出了一个分层改进框架,包括基于所需额外努力水平的三个级别-次要,中等和主要努力。该框架旨在系统地提高LCA研究的可比性和可靠性。这项工作有助于建立共同的LCA应用协议,并为未来二氧化碳吸附技术的环境评估提供方法学指导。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
A suggested methodological framework to enhance comparability and reliability for life cycle assessment of CO2 adsorption in energy-intensive industries
Among the various CO2 capture technologies, adsorption capture appears to be an emerging and promising technology characterised by operational flexibility, low pollutant emissions, and low energy consumption. It is expected to be crucial in carbon capture and storage systems. Whilst Life Cycle Assessment (LCA) has emerged as the consensus methodology for evaluating the environmental impacts of this technology, methodological heterogeneity in LCA applications has limited the comparability and credibility of research findings. This study systematically reviews 31 LCA studies published between 2006 and 2025, examining methodological commonalities and differences across four aspects: goal and scope definition, inventory analysis, impact assessment and interpretation. Current LCA methodological standards and guidelines were used as benchmarks to analyse the challenges and opportunities in CO2 adsorption LCA methodology and to propose a methodological framework. The findings reveal that commonalities (e.g., functional unit) and differences (e.g., system boundary, life cycle stages and process stage alignments) exist among LCA methodologies. Moreover, compared to existing standards and guidelines, current methodological applications demonstrate notable gaps (e.g., the lack of data quality evaluation and the classification of significance levels). Consequently, we propose a hierarchical improvement framework comprising three levels based on required additional effort levels— minor, moderate, and major efforts. This framework aims to systematically enhance the comparability and reliability of LCA studies. This work contributes to establishing common LCA application protocols and provides methodological guidance for future environmental assessments of CO2 adsorption technologies.
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来源期刊
Applied Energy
Applied Energy 工程技术-工程:化工
CiteScore
21.20
自引率
10.70%
发文量
1830
审稿时长
41 days
期刊介绍: Applied Energy serves as a platform for sharing innovations, research, development, and demonstrations in energy conversion, conservation, and sustainable energy systems. The journal covers topics such as optimal energy resource use, environmental pollutant mitigation, and energy process analysis. It welcomes original papers, review articles, technical notes, and letters to the editor. Authors are encouraged to submit manuscripts that bridge the gap between research, development, and implementation. The journal addresses a wide spectrum of topics, including fossil and renewable energy technologies, energy economics, and environmental impacts. Applied Energy also explores modeling and forecasting, conservation strategies, and the social and economic implications of energy policies, including climate change mitigation. It is complemented by the open-access journal Advances in Applied Energy.
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