International Journal of Greenhouse Gas Control最新文献

Capturing or offsetting carbon emissions: techno-economic evaluation of decarbonising industries with CO2-lean flue gas 捕获或抵消碳排放：利用低二氧化碳烟气脱碳工业的技术经济评价

IF 5.9 3区工程技术 Q2 ENERGY & FUELS

International Journal of Greenhouse Gas Control

Pub Date : 2026-10-01 DOI: 10.1016/j.ijggc.2026.104803

Sina Hoseinpoori, David Pallarès, Filip Johnsson

This work investigates the technical feasibility and costs of carbon capture from industrial emission sources with CO₂ concentrations of 0.5–4.0%. Three post-combustion capture schemes are considered: monoethanolamine absorption (MEA-ABS); alkali absorption combined with calcium looping (ALK-ABS); and temperature vacuum swing adsorption (TVSA), the latter two commonly investigated for direct air capture. Capture and avoidance costs are compared across industrial sectors, varying the flow rate and CO₂ concentration of the flue gas, and contrasted with the price of offsetting the emissions through purchases of carbon dioxide removal credits at current voluntary-market prices.

The results show that MEA-ABS has the lowest levelized cost of capture (LCOC) for flue gas streams with larger flow rates (>200 t/h) and CO₂ concentrations ≥1%. TVSA presents the lowest LCOC at lower flow rates (especially <100 t/h), while ALK-ABS has the lowest LCOC only within a small window of low CO₂ concentration (0.5–1%) and 100–200 t/h. Accounting for the carbon footprints of the input energy changes this picture: the carbon avoidance costs (assuming a transport and storage cost of 105 $/tCO₂) reach their lowest values with ALK-ABS, unless heat with a low carbon intensity is available for MEA-ABS. Comparing the cost of carbon avoidance with carbon dioxide removal credits on the voluntary market, it can be more economical for industries with flue gases with CO₂ concentrations <2.6% to offset their emissions through the purchase of such credits than to install any of the post-combustion capture technologies considered here.

本文研究了二氧化碳浓度为0.5-4.0%的工业排放源碳捕获的技术可行性和成本。考虑了三种燃烧后捕获方案：单乙醇胺吸收（MEA-ABS）；碱吸收结合钙环（ALK-ABS）；和温度真空摆动吸附（TVSA），后两者通常用于直接空气捕获。通过改变烟道气体的流速和CO 2浓度，对各个工业部门的捕集和避免成本进行了比较，并与以当前自愿市场价格通过购买二氧化碳去除信用额度来抵消排放的价格进行了对比。结果表明，对于大流量（200 t/h）、CO₂浓度≥1%的烟气流，MEA-ABS具有最低的平准化捕集成本（LCOC）。TVSA在低流量下（特别是100 t/h） LCOC最低，而ALK-ABS仅在低CO₂浓度（0.5-1%）和100 - 200 t/h的小窗口内LCOC最低。考虑到输入能量的碳足迹，这一情况发生了变化：碳避免成本（假设运输和储存成本为105美元/tCO₂）在ALK-ABS中达到最低值，除非MEA-ABS可以获得低碳强度的热量。将避免碳排放的成本与自愿市场上的二氧化碳去除信用额进行比较，对于CO₂浓度为2.6%的烟气行业来说，通过购买这种信用额来抵消其排放，可能比安装本文所考虑的任何燃烧后捕获技术更为经济。

{"title":"Capturing or offsetting carbon emissions: techno-economic evaluation of decarbonising industries with CO2-lean flue gas","authors":"Sina Hoseinpoori, David Pallarès, Filip Johnsson","doi":"10.1016/j.ijggc.2026.104803","DOIUrl":"10.1016/j.ijggc.2026.104803","url":null,"abstract":"<div><div>This work investigates the technical feasibility and costs of carbon capture from industrial emission sources with CO₂ concentrations of 0.5–4.0%. Three post-combustion capture schemes are considered: monoethanolamine absorption (MEA-ABS); alkali absorption combined with calcium looping (ALK-ABS); and temperature vacuum swing adsorption (TVSA), the latter two commonly investigated for direct air capture. Capture and avoidance costs are compared across industrial sectors, varying the flow rate and CO₂ concentration of the flue gas, and contrasted with the price of offsetting the emissions through purchases of carbon dioxide removal credits at current voluntary-market prices.</div><div>The results show that MEA-ABS has the lowest levelized cost of capture (LCOC) for flue gas streams with larger flow rates (>200 t/h) and CO₂ concentrations ≥1%. TVSA presents the lowest LCOC at lower flow rates (especially <100 t/h), while ALK-ABS has the lowest LCOC only within a small window of low CO₂ concentration (0.5–1%) and 100–200 t/h. Accounting for the carbon footprints of the input energy changes this picture: the carbon avoidance costs (assuming a transport and storage cost of 105 $/tCO₂) reach their lowest values with ALK-ABS, unless heat with a low carbon intensity is available for MEA-ABS. Comparing the cost of carbon avoidance with carbon dioxide removal credits on the voluntary market, it can be more economical for industries with flue gases with CO₂ concentrations <2.6% to offset their emissions through the purchase of such credits than to install any of the post-combustion capture technologies considered here.</div></div>","PeriodicalId":334,"journal":{"name":"International Journal of Greenhouse Gas Control","volume":"156 ","pages":"Article 104803"},"PeriodicalIF":5.9,"publicationDate":"2026-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149160736","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Deployment potential and economic cost analysis of CCUS in high-emission industries: A case study of Liaoning Province, China CCUS在高排放行业的部署潜力及经济成本分析——以辽宁省为例

IF 5.9 3区工程技术 Q2 ENERGY & FUELS

International Journal of Greenhouse Gas Control

Pub Date : 2026-10-01 Epub Date: 2026-10-03 DOI: 10.1016/j.ijggc.2026.104800

Huan You, Jinguang Yan, Jingyao Jia, Chengkang Gao, Guoqiang Sang, Jiutian Zhang, Ciang Ding, Ying Zhang

Achieving China’s dual-carbon goals requires accelerated CCUS deployment, yet provinces with concentrated emissions and limited site-level storage remain understudied. This study developed a plant-level source-sink database for Liaoning Province and applied a MILP model enhanced with DBSCAN to assess mitigation potential, costs, and matching strategies. Annual CO₂ emissions from coal power, steel, and cement plants reached 112.43, 141.32, and 22.04 Mt. Storage capacity in oil fields and saline aquifers totaled 25.69 Gt. However, most oil fields cannot independently meet sequestration needs. Within 250 km, 13 cement plants could be matched, achieving 9.09 Mt CO₂ mitigation demand at –42.24 $/t. Clustering oil fields into three groups increased cement-sector mitigation to 10.32 Mt and lowered costs to –87.88 $/t, although this configuration did not support matches for steel plants or coal-fired power plants. This is a planning-oriented screening and matching study conducted under specific assumptions: a 250 km transport distance limit, a project start year of 2030, and a 30-year operational lifetime, rather than a full dynamic deployment pathway analysis. This study offers a theoretical foundation and pathway reference for other industrial provinces under storage-constrained conditions.

实现中国的双碳目标需要加速CCUS的部署，但排放集中、场址级储存有限的省份仍未得到充分研究。本研究为辽宁省开发了一个工厂级源汇数据库，并应用经过DBSCAN增强的MILP模型来评估缓解潜力、成本和匹配策略。燃煤电厂、钢铁厂、水泥厂的年CO₂排放量分别为112.43亿吨、141.32亿吨、220.4亿吨。油田和咸水层的储存量为25.69亿吨，但大部分油田无法独立满足封存需求。在250公里范围内，13家水泥厂可以匹配，以-42.24美元/吨的价格实现909万吨二氧化碳减排需求。将油田分成三组，将水泥部门的减排量提高到1032万吨，将成本降低到-87.88美元/吨，尽管这种配置不支持钢铁厂或燃煤电厂的匹配。这是一个以规划为导向的筛选和匹配研究，在特定的假设下进行：250公里的运输距离限制，项目启动年份为2030年，运行寿命为30年，而不是一个完整的动态部署路径分析。本研究可为其他工业省份在储能受限条件下提供理论基础和路径参考。

{"title":"Deployment potential and economic cost analysis of CCUS in high-emission industries: A case study of Liaoning Province, China","authors":"Huan You, Jinguang Yan, Jingyao Jia, Chengkang Gao, Guoqiang Sang, Jiutian Zhang, Ciang Ding, Ying Zhang","doi":"10.1016/j.ijggc.2026.104800","DOIUrl":"10.1016/j.ijggc.2026.104800","url":null,"abstract":"<div><div>Achieving China’s dual-carbon goals requires accelerated CCUS deployment, yet provinces with concentrated emissions and limited site-level storage remain understudied. This study developed a plant-level source-sink database for Liaoning Province and applied a MILP model enhanced with DBSCAN to assess mitigation potential, costs, and matching strategies. Annual CO₂ emissions from coal power, steel, and cement plants reached 112.43, 141.32, and 22.04 Mt. Storage capacity in oil fields and saline aquifers totaled 25.69 Gt. However, most oil fields cannot independently meet sequestration needs. Within 250 km, 13 cement plants could be matched, achieving 9.09 Mt CO₂ mitigation demand at –42.24 $/t. Clustering oil fields into three groups increased cement-sector mitigation to 10.32 Mt and lowered costs to –87.88 $/t, although this configuration did not support matches for steel plants or coal-fired power plants. This is a planning-oriented screening and matching study conducted under specific assumptions: a 250 km transport distance limit, a project start year of 2030, and a 30-year operational lifetime, rather than a full dynamic deployment pathway analysis. This study offers a theoretical foundation and pathway reference for other industrial provinces under storage-constrained conditions.</div></div>","PeriodicalId":334,"journal":{"name":"International Journal of Greenhouse Gas Control","volume":"156 ","pages":"Article 104800"},"PeriodicalIF":5.9,"publicationDate":"2026-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149160737","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Assessing readiness for CC(U)S: are we there yet? 评估CC(U)S的准备情况：我们到了吗？

IF 5.9 3区工程技术 Q2 ENERGY & FUELS

International Journal of Greenhouse Gas Control

Pub Date : 2026-10-01 Epub Date: 2026-09-28 DOI: 10.1016/j.ijggc.2026.104797

Peta Ashworth, Bishal Bharadwaj, Richard Norman

Given the slow progress on climate mitigation across the world, the need for carbon capture and storage (CCS) to reduce carbon dioxide (CO₂) emissions is being increasingly discussed across society. However, the public remains ignorant of CCS and the role it may play in reducing CO₂ emissions. This means responses to CCS projects can be reactionary rather than based on knowledge of CCS project attributes. To overcome this gap, we used a Discrete Choice Experiment, to investigate: (i) under what conditions do individuals choose a CCS project (or not)? and (ii) what are the attributes that influence preferences for the different forms of CCS? This was seen as a way to address the shortfall of previous public perception research by focusing on the different attributes of CCS projects. We used a market research company to conduct an online survey across seven countries (N=7264) including Australia, the United Kingdom, the United States, Canada, Denmark, Brazil and Indonesia. While there were small differences in preferences across countries, all respondents preferred projects that showed higher benefits - maximising the CO₂ captured for the lowest cost. The other finding was that respondents were less likely to choose projects storing CO₂ locally. These three findings highlight the areas that require most attention for communicating and engaging communities for local CCS projects. While not insurmountable, there is a need to ensure financing CCS projects do not become a burden on the public through subsidies. A more nuanced approach is required to ensure CCS becomes mainstreamed into global mitigation strategies.

鉴于全球在减缓气候变化方面进展缓慢，社会各界越来越多地讨论利用碳捕获和封存（CCS）来减少二氧化碳（CO2）排放的必要性。然而，公众仍然对CCS及其在减少二氧化碳排放方面可能发挥的作用一无所知。这意味着对CCS项目的反应可能是反动的，而不是基于对CCS项目属性的了解。为了克服这一差距，我们使用离散选择实验来调查：(i)个人在什么条件下选择（或不选择）CCS项目？以及（ii）影响对不同形式的CCS的偏好的属性是什么？通过关注CCS项目的不同属性，这被视为解决以往公众认知研究不足的一种方式。我们利用一家市场研究公司对澳大利亚、英国、美国、加拿大、丹麦、巴西和印度尼西亚等7个国家（N=7264）进行了在线调查。虽然各国的偏好略有不同，但所有受访者都更喜欢效益更高的项目——以最低的成本最大限度地捕获二氧化碳。另一个发现是，受访者不太可能选择在当地储存二氧化碳的项目。这三个发现突出了在沟通和吸引社区参与当地CCS项目方面最需要关注的领域。虽然不是不可克服的，但有必要确保CCS项目的融资不会通过补贴成为公众的负担。要确保CCS成为全球缓解战略的主流，需要一种更细致入微的方法。

{"title":"Assessing readiness for CC(U)S: are we there yet?","authors":"Peta Ashworth, Bishal Bharadwaj, Richard Norman","doi":"10.1016/j.ijggc.2026.104797","DOIUrl":"10.1016/j.ijggc.2026.104797","url":null,"abstract":"<div><div>Given the slow progress on climate mitigation across the world, the need for carbon capture and storage (CCS) to reduce carbon dioxide (CO<sub>2</sub>) emissions is being increasingly discussed across society. However, the public remains ignorant of CCS and the role it may play in reducing CO<sub>2</sub> emissions. This means responses to CCS projects can be reactionary rather than based on knowledge of CCS project attributes. To overcome this gap, we used a Discrete Choice Experiment, to investigate: (i) under what conditions do individuals choose a CCS project (or not)? and (ii) what are the attributes that influence preferences for the different forms of CCS? This was seen as a way to address the shortfall of previous public perception research by focusing on the different attributes of CCS projects. We used a market research company to conduct an online survey across seven countries (N=7264) including Australia, the United Kingdom, the United States, Canada, Denmark, Brazil and Indonesia. While there were small differences in preferences across countries, all respondents preferred projects that showed higher benefits - maximising the CO<sub>2</sub> captured for the lowest cost. The other finding was that respondents were less likely to choose projects storing CO<sub>2</sub> locally. These three findings highlight the areas that require most attention for communicating and engaging communities for local CCS projects. While not insurmountable, there is a need to ensure financing CCS projects do not become a burden on the public through subsidies. A more nuanced approach is required to ensure CCS becomes mainstreamed into global mitigation strategies.</div></div>","PeriodicalId":334,"journal":{"name":"International Journal of Greenhouse Gas Control","volume":"156 ","pages":"Article 104797"},"PeriodicalIF":5.9,"publicationDate":"2026-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149160739","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Designing carbon contract for difference incentives to drive the deployment of carbon capture and storage in Europe 设计不同激励机制的碳合同，以推动欧洲碳捕集与封存的部署

IF 5.9 3区工程技术 Q2 ENERGY & FUELS

International Journal of Greenhouse Gas Control

Pub Date : 2026-10-01 Epub Date: 2026-10-06 DOI: 10.1016/j.ijggc.2026.104798

Toby Lockwood, Adriana Matić, Tobias Johan Sørensen

Carbon contracts for difference (CCfDs) have become a leading policy option in Europe for funding the deployment of carbon capture and storage (CCS) and other industrial decarbonisation projects. This mechanism aims to cover the gap between project costs and the prevailing carbon price over a given project duration. This paper assesses existing CCfD schemes in five European states, highlighting the design choices available to policy makers and their impact on CCS deployment. Design choices include parameters such as project eligibility and selection criteria, payment symmetry, price indexing, and performance criteria. Variation between these schemes is a result of different national contexts and policy visions for CCS development. Countries with weaker political support for CCS or a focus on industrial decarbonisation have tended to prefer CCfD programmes open to multiple decarbonisation technologies. Countries with a strategic vision to deploy CCS technology for multiple purposes have developed technology-targeted schemes. A fundamental challenge for CCS projects is a reliance on shared CO₂ infrastructure, which creates co-dependencies with other projects and can increase cost uncertainty. Design features to address this challenge have included regional prioritisation, cross-chain risk mitigation, consortium bids, and flexibility to changing costs. Project selection and performance criteria can be tailored to promote goals such as near-term abatement, net-zero compatibility, and wider economic impact. As more countries develop CCfDs to meet their decarbonisation goals, this paper offers a structured comparison of the motivating factors and outcomes of key design choices for CCS, so as to inform the design of future schemes.

碳差价合约（ccfd）已经成为欧洲为碳捕获与封存（CCS）和其他工业脱碳项目的部署提供资金的主要政策选择。这一机制旨在弥补项目成本与特定项目期间现行碳价格之间的差距。本文评估了五个欧洲国家现有的CCfD方案，强调了决策者可用的设计选择及其对CCS部署的影响。设计选择包括项目资格和选择标准、支付对称、价格指数和性能标准等参数。这些方案之间的差异是不同国家背景和CCS发展政策愿景的结果。对CCS的政治支持较弱或侧重于工业脱碳的国家往往更喜欢对多种脱碳技术开放的CCfD项目。具有将CCS技术用于多种用途的战略眼光的国家已经制定了以技术为目标的计划。CCS项目面临的一个根本挑战是对共享二氧化碳基础设施的依赖，这与其他项目产生了相互依赖关系，并可能增加成本的不确定性。应对这一挑战的设计特点包括区域优先级、跨链风险缓解、联合投标以及对成本变化的灵活性。可以调整项目选择和绩效标准，以促进短期减排、净零兼容性和更广泛的经济影响等目标。随着越来越多的国家发展ccfd以实现其脱碳目标，本文对CCS的关键设计选择的激励因素和结果进行了结构化比较，从而为未来方案的设计提供信息。

{"title":"Designing carbon contract for difference incentives to drive the deployment of carbon capture and storage in Europe","authors":"Toby Lockwood, Adriana Matić, Tobias Johan Sørensen","doi":"10.1016/j.ijggc.2026.104798","DOIUrl":"10.1016/j.ijggc.2026.104798","url":null,"abstract":"<div><div>Carbon contracts for difference (CCfDs) have become a leading policy option in Europe for funding the deployment of carbon capture and storage (CCS) and other industrial decarbonisation projects. This mechanism aims to cover the gap between project costs and the prevailing carbon price over a given project duration. This paper assesses existing CCfD schemes in five European states, highlighting the design choices available to policy makers and their impact on CCS deployment. Design choices include parameters such as project eligibility and selection criteria, payment symmetry, price indexing, and performance criteria. Variation between these schemes is a result of different national contexts and policy visions for CCS development. Countries with weaker political support for CCS or a focus on industrial decarbonisation have tended to prefer CCfD programmes open to multiple decarbonisation technologies. Countries with a strategic vision to deploy CCS technology for multiple purposes have developed technology-targeted schemes. A fundamental challenge for CCS projects is a reliance on shared CO<sub>2</sub> infrastructure, which creates co-dependencies with other projects and can increase cost uncertainty. Design features to address this challenge have included regional prioritisation, cross-chain risk mitigation, consortium bids, and flexibility to changing costs. Project selection and performance criteria can be tailored to promote goals such as near-term abatement, net-zero compatibility, and wider economic impact. As more countries develop CCfDs to meet their decarbonisation goals, this paper offers a structured comparison of the motivating factors and outcomes of key design choices for CCS, so as to inform the design of future schemes.</div></div>","PeriodicalId":334,"journal":{"name":"International Journal of Greenhouse Gas Control","volume":"156 ","pages":"Article 104798"},"PeriodicalIF":5.9,"publicationDate":"2026-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149160741","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Techno-economic analysis of promoter-enhanced CO2 capture with electrochemical regeneration: A comparative study with CESAR1 on a CHP plant 电化学再生促进剂增强CO2捕集的技术经济分析：与热电联产厂CESAR1的比较研究

IF 5.9 3区工程技术 Q2 ENERGY & FUELS

International Journal of Greenhouse Gas Control

Pub Date : 2026-10-01 Epub Date: 2026-09-29 DOI: 10.1016/j.ijggc.2026.104802

Friday O. Ochedi, Sotirios Efstathios Antonoudis, Ilias Kakanis, Grigorios Itskos, Fariborz Shaahmadi, Ashween Kaur Virdee, John Andresen, Susana Garcia, Mijndert van der Spek

This study presents a techno-economic analysis (TEA) comparing an alkaline solvent-based carbon capture technology utilizing electrochemical regeneration (ConsenCUS) with a conventional amine-based thermal regeneration approach (CESAR1) when retrofitted to a combined heat and power (CHP) plant to capture 0.45 Mtonne CO₂ annually. The study also investigates the integration of immobilized carbonic anhydrase (CA) as a promoter to enhance CO₂ absorption kinetics in the ConsenCUS system (ConsenCUS-CA). The results demonstrate that CESAR1 has a regeneration energy requirement of 3.23 GJ_th/tonne CO₂, compared with 3.74 GJ_el/tonne CO₂ for ConsenCUS. Meanwhile, ConsenCUS-CA demonstrates significant improvements, including an 18.6% reduction in solvent requirement, a two-thirds decrease in absorber height, and an 18.4% reduction in electrical regeneration energy requirement, resulting in a 14.1% decrease in total capital requirement, a 12.2% decrease in operating cost, and a 22.3% decrease in the cost of CO₂ avoided when using renewable energy. Despite requiring 30% lower capital investment than CESAR1, ConsenCUS-CA incurs up to 23% higher annual operating costs, primarily due to the electricity required for electrochemical regeneration. The impact of regeneration energy sources is also examined. The economic comparison shows that CESAR1, using a natural gas boiler for steam generation, has an €11.38/tonne CO₂ higher cost of CO₂ avoided but a €2.60/tonne steam lower additional steam production cost than ConsenCUS-CA using renewable electricity. The study further examines the impacts of technological learning, electricity price, CA cost and lifetime, CO₂ emission price, discount rate, plant lifetime, and potential performance improvements on the economic viability of the technologies. The findings indicate that, with continued technological development, ConsenCUS-CA could achieve operating cost parity with CESAR1 if its electrical energy consumption is reduced by at least 25%.

本研究提出了一项技术经济分析（TEA），比较了利用电化学再生（conencus）的碱性溶剂碳捕集技术与传统的胺基热再生方法（CESAR1），当改造为热电联产（CHP）电厂时，每年捕集0.45万吨二氧化碳。该研究还研究了固定化碳酸酐酶（CA）作为促进剂的整合，以提高conencus系统（conencus -CA）的二氧化碳吸收动力学。结果表明，CESAR1的再生能量需求为3.23 GJth/吨CO2，而consenus的再生能量需求为3.74 GJth/吨CO2。与此同时，conencus - ca显示出显著的改进，包括溶剂需求减少18.6%，吸收器高度减少三分之二，电力再生能源需求减少18.4%，从而使总资本需求减少14.1%，运营成本降低12.2%，使用可再生能源时避免二氧化碳的成本降低22.3%。尽管与CESAR1相比，conencus - ca所需的资本投资降低了30%，但其年运营成本却高出了23%，这主要是由于电化学再生所需的电力。对再生能源的影响也进行了研究。经济比较表明，CESAR1使用天然气锅炉产生蒸汽，避免二氧化碳的成本比使用可再生电力的conencus - ca每吨二氧化碳高11.38欧元，但每吨蒸汽的额外生产成本比使用可再生电力的conencus - ca低2.60欧元。研究进一步探讨了技术学习、电价、CA成本和寿命、二氧化碳排放价格、贴现率、工厂寿命和潜在性能改进对技术经济可行性的影响。研究结果表明，随着技术的不断发展，如果conencus - ca的电能消耗减少至少25%，则可以实现与CESAR1相当的运营成本。

{"title":"Techno-economic analysis of promoter-enhanced CO2 capture with electrochemical regeneration: A comparative study with CESAR1 on a CHP plant","authors":"Friday O. Ochedi, Sotirios Efstathios Antonoudis, Ilias Kakanis, Grigorios Itskos, Fariborz Shaahmadi, Ashween Kaur Virdee, John Andresen, Susana Garcia, Mijndert van der Spek","doi":"10.1016/j.ijggc.2026.104802","DOIUrl":"10.1016/j.ijggc.2026.104802","url":null,"abstract":"<div><div>This study presents a techno-economic analysis (TEA) comparing an alkaline solvent-based carbon capture technology utilizing electrochemical regeneration (ConsenCUS) with a conventional amine-based thermal regeneration approach (CESAR1) when retrofitted to a combined heat and power (CHP) plant to capture 0.45 Mtonne CO<sub>2</sub> annually. The study also investigates the integration of immobilized carbonic anhydrase (CA) as a promoter to enhance CO<sub>2</sub> absorption kinetics in the ConsenCUS system (ConsenCUS-CA). The results demonstrate that CESAR1 has a regeneration energy requirement of 3.23 GJ<sub>th</sub>/tonne CO<sub>2</sub>, compared with 3.74 GJ<sub>el</sub>/tonne CO<sub>2</sub> for ConsenCUS. Meanwhile, ConsenCUS-CA demonstrates significant improvements, including an 18.6% reduction in solvent requirement, a two-thirds decrease in absorber height, and an 18.4% reduction in electrical regeneration energy requirement, resulting in a 14.1% decrease in total capital requirement, a 12.2% decrease in operating cost, and a 22.3% decrease in the cost of CO<sub>2</sub> avoided when using renewable energy. Despite requiring 30% lower capital investment than CESAR1, ConsenCUS-CA incurs up to 23% higher annual operating costs, primarily due to the electricity required for electrochemical regeneration. The impact of regeneration energy sources is also examined. The economic comparison shows that CESAR1, using a natural gas boiler for steam generation, has an €11.38/tonne CO<sub>2</sub> higher cost of CO<sub>2</sub> avoided but a €2.60/tonne steam lower additional steam production cost than ConsenCUS-CA using renewable electricity. The study further examines the impacts of technological learning, electricity price, CA cost and lifetime, CO<sub>2</sub> emission price, discount rate, plant lifetime, and potential performance improvements on the economic viability of the technologies. The findings indicate that, with continued technological development, ConsenCUS-CA could achieve operating cost parity with CESAR1 if its electrical energy consumption is reduced by at least 25%.</div></div>","PeriodicalId":334,"journal":{"name":"International Journal of Greenhouse Gas Control","volume":"156 ","pages":"Article 104802"},"PeriodicalIF":5.9,"publicationDate":"2026-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149160743","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

The scale of direct air capture in a net-zero California 加州净零排放的直接空气捕获规模

IF 5.9 3区工程技术 Q2 ENERGY & FUELS

International Journal of Greenhouse Gas Control

Pub Date : 2026-10-01 Epub Date: 2026-10-16 DOI: 10.1016/j.ijggc.2026.104809

Dimitri M. Saad, Katrin Sievert, Mo Sodwatana, Mathis Heyer, Andea Scott, Bjarne Steffen, Adam R. Brandt

California’s 2045 net-zero goal relies heavily on carbon dioxide removal (CDR). Ninety-eight percent of CDR is expected to come from engineered systems such as direct air capture (DAC) and carbon storage. However, uncertainty in future DAC costs obscures its role in California’s decarbonization pathway. We address this gap by using the BRIDGES model, a multi-year sector-coupled gas-electricity capacity expansion model for California, to assess the deployment of two DAC technologies under varying cost assumptions. Specifically, we incorporate technology-specific data for liquid solvent and solid sorbent DAC like capital expenditures, operations and maintenance costs, and energy consumption. We develop scenarios that explore DAC upscaling and deployment. We find that 16 to 33 Mt_CO₂/year of DAC capacity is part of a cost-optimal energy system in 2045 that abates emissions from electric power, buildings, and industry. While DAC deployment does not significantly impede the transition to a variable renewable energy-dominant system, it enables the continued use of natural gas for high-temperature industrial heat and natural gas-powered electricity generation. Even in scenarios with zero natural gas combustion, DAC is utilized to address persistent residual emissions, such as hydrofluorocarbon leaks in building appliances and uncaptured CO₂ in industrial carbon capture and storage systems. These results position DAC as a critical complement to deep decarbonization, highlighting its role in managing residual emissions.

加州2045年的净零目标在很大程度上依赖于二氧化碳去除（CDR）。98%的CDR预计来自工程系统，如直接空气捕获（DAC）和碳储存。然而，未来DAC成本的不确定性模糊了其在加州脱碳途径中的作用。我们通过使用BRIDGES模型来解决这一差距，BRIDGES模型是加州多年部门耦合的气电容量扩张模型，在不同的成本假设下评估两种DAC技术的部署。具体来说，我们结合了液体溶剂和固体吸附剂DAC的技术特定数据，如资本支出，运营和维护成本以及能耗。我们开发了探索DAC升级和部署的场景。我们发现，到2045年，1600至3300万吨二氧化碳/年的DAC产能是成本最优能源系统的一部分，可以减少电力、建筑和工业的排放。虽然DAC的部署不会明显阻碍向可变可再生能源主导系统的过渡，但它可以继续使用天然气用于高温工业供热和天然气发电。即使在零天然气燃烧的情况下，DAC也用于解决持续残留排放问题，例如建筑设备中的氢氟碳化物泄漏以及工业碳捕获和储存系统中未捕获的二氧化碳。这些结果将DAC定位为深度脱碳的关键补充，突出了其在管理残余排放方面的作用。

{"title":"The scale of direct air capture in a net-zero California","authors":"Dimitri M. Saad, Katrin Sievert, Mo Sodwatana, Mathis Heyer, Andea Scott, Bjarne Steffen, Adam R. Brandt","doi":"10.1016/j.ijggc.2026.104809","DOIUrl":"10.1016/j.ijggc.2026.104809","url":null,"abstract":"<div><div>California’s 2045 net-zero goal relies heavily on carbon dioxide removal (CDR). Ninety-eight percent of CDR is expected to come from engineered systems such as direct air capture (DAC) and carbon storage. However, uncertainty in future DAC costs obscures its role in California’s decarbonization pathway. We address this gap by using the BRIDGES model, a multi-year sector-coupled gas-electricity capacity expansion model for California, to assess the deployment of two DAC technologies under varying cost assumptions. Specifically, we incorporate technology-specific data for liquid solvent and solid sorbent DAC like capital expenditures, operations and maintenance costs, and energy consumption. We develop scenarios that explore DAC upscaling and deployment. We find that 16 to 33 Mt<sub>CO<sub>2</sub></sub>/year of DAC capacity is part of a cost-optimal energy system in 2045 that abates emissions from electric power, buildings, and industry. While DAC deployment does not significantly impede the transition to a variable renewable energy-dominant system, it enables the continued use of natural gas for high-temperature industrial heat and natural gas-powered electricity generation. Even in scenarios with zero natural gas combustion, DAC is utilized to address persistent residual emissions, such as hydrofluorocarbon leaks in building appliances and uncaptured CO<sub>2</sub> in industrial carbon capture and storage systems. These results position DAC as a critical complement to deep decarbonization, highlighting its role in managing residual emissions.</div></div>","PeriodicalId":334,"journal":{"name":"International Journal of Greenhouse Gas Control","volume":"156 ","pages":"Article 104809"},"PeriodicalIF":5.9,"publicationDate":"2026-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149200972","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Legacy plugged and buried wells: A limited contribution to Germany's methane emissions 堵井和埋井的遗留问题：对德国甲烷排放的贡献有限

IF 5.9 3区工程技术 Q2 ENERGY & FUELS

International Journal of Greenhouse Gas Control

Pub Date : 2026-10-01 Epub Date: 2026-10-05 DOI: 10.1016/j.ijggc.2026.104801

S. Schloemer, M. Blumenberg, S.F.A. Jordan

Methane (CH₄) emissions from abandoned oil and gas wells are increasingly recognized as potential contributors to anthropogenic greenhouse gas inventories. However, empirical data regarding the long-term integrity of plugged and buried wells in Germany remains sparse. This study aims to quantify CH₄ fluxes from legacy wells in Lower Saxony (Northern Germany) to evaluate their environmental relevance.

We conducted a field survey of 92 wells. The study design employed a multi-tiered approach, integrating surface flux measurements with soil gas analysis. To distinguish between deep thermogenic leakage and shallow biogenic signals, we analyzed soil gas compositions (hydrocarbons, CO₂) and stable carbon isotope ratios at both, well locations and reference grids.

Statistical analysis reveals no significant differences in methane concentrations or flux rates between well locations and reference sites. Of the 92 wells examined, 20 showed at least one positive emission at the surface. Only 3 indicate time-varying and low leaking of natural gas (max 40 mg/h/well); two revealed an anomaly (possible shallow biogenic gas) and the remainder are considered natural background levels or are caused by other processes (e.g. peat mining).

The findings suggest that plugged and buried wells in Germany do not reveal systemic integrity failures and indicates that abandonment practices are effective. Further, microbial methane oxidation in the vadose zone may also serve as an efficient natural filter. While caution is warranted when upscaling these results to the >25,000 legacy wells nationwide, this study implies that these features represent a limited contribution to Germany’s methane emissions.

废弃油气井排放的甲烷（CH4）越来越被认为是人为温室气体清单的潜在贡献者。然而，关于德国封堵井和埋藏井的长期完整性的经验数据仍然很少。本研究旨在量化下萨克森州（德国北部）遗留井的CH4通量，以评估其环境相关性。我们对92口井进行了现场调查。研究设计采用多层方法，将地表通量测量与土壤气体分析相结合。为了区分深层热源泄漏和浅层生物源信号，我们分析了井位和参考网格的土壤气体组成（碳氢化合物、二氧化碳）和稳定碳同位素比率。统计分析显示，井位和参考地点之间的甲烷浓度或通量率没有显著差异。在调查的92口井中，有20口井地表至少有一口正排放。只有3个为时变、低泄漏天然气（最大40 mg/h/井）；其中两个显示了异常（可能是浅层生物气），其余的被认为是自然背景水平或由其他过程（如泥炭开采）引起的。研究结果表明，在德国，堵井和埋井并没有显示出系统完整性的缺陷，表明弃井措施是有效的。此外，微生物甲烷氧化在气包带也可以作为一个有效的天然过滤器。当将这些结果扩大到全国25000口老井时，需要谨慎，但这项研究表明，这些特征对德国甲烷排放的贡献有限。

{"title":"Legacy plugged and buried wells: A limited contribution to Germany's methane emissions","authors":"S. Schloemer, M. Blumenberg, S.F.A. Jordan","doi":"10.1016/j.ijggc.2026.104801","DOIUrl":"10.1016/j.ijggc.2026.104801","url":null,"abstract":"<div><div>Methane (CH<sub>4</sub>) emissions from abandoned oil and gas wells are increasingly recognized as potential contributors to anthropogenic greenhouse gas inventories. However, empirical data regarding the long-term integrity of plugged and buried wells in Germany remains sparse. This study aims to quantify CH<sub>4</sub> fluxes from legacy wells in Lower Saxony (Northern Germany) to evaluate their environmental relevance.</div><div>We conducted a field survey of 92 wells. The study design employed a multi-tiered approach, integrating surface flux measurements with soil gas analysis. To distinguish between deep thermogenic leakage and shallow biogenic signals, we analyzed soil gas compositions (hydrocarbons, CO<sub>2</sub>) and stable carbon isotope ratios at both, well locations and reference grids.</div><div>Statistical analysis reveals no significant differences in methane concentrations or flux rates between well locations and reference sites. Of the 92 wells examined, 20 showed at least one positive emission at the surface. Only 3 indicate time-varying and low leaking of natural gas (max 40 mg/h/well); two revealed an anomaly (possible shallow biogenic gas) and the remainder are considered natural background levels or are caused by other processes (e.g. peat mining).</div><div>The findings suggest that plugged and buried wells in Germany do not reveal systemic integrity failures and indicates that abandonment practices are effective. Further, microbial methane oxidation in the vadose zone may also serve as an efficient natural filter. While caution is warranted when upscaling these results to the >25,000 legacy wells nationwide, this study implies that these features represent a limited contribution to Germany’s methane emissions.</div></div>","PeriodicalId":334,"journal":{"name":"International Journal of Greenhouse Gas Control","volume":"156 ","pages":"Article 104801"},"PeriodicalIF":5.9,"publicationDate":"2026-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149160751","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Risk sharing in cooperative game models for CO2 storage with uncertain geology and pressure competition 不确定地质条件和压力竞争下CO2封存合作博弈模型的风险分担

IF 5.9 3区工程技术 Q2 ENERGY & FUELS

International Journal of Greenhouse Gas Control

Pub Date : 2026-10-01 Epub Date: 2026-10-12 DOI: 10.1016/j.ijggc.2026.104807

Per Pettersson, Svenn Tveit, Sarah E. Gasda

With an increasing number of prospective geological CO₂ storage projects and potential pressure communication between different projects, risk sharing under uncertain geological conditions is relevant to many project operators. In this work, the project operators are modeled as agents in a stochastic cooperative game. The agents can have different risk attitudes, here defined as being willing to accept more or less uncertainty in the predicted storage of CO₂. This uncertainty stems from lack of knowledge of geological parameters as well as unknown future actions of competing agents, and the corresponding probability distributions need to be estimated by numerical simulation.

The agents can choose to share commercial risk if collaboration is preferable to a baseline scenario of individual injection. If their operations affect each other by means of, e.g., pressure communication, there may be no unique natural definition of a baseline scenario. As a remedy, we suggest belief distributions that combine uncertainty in physical data with maximum entropy prior distributions over the sets of viable injection actions.

For a realistic storage site, exemplified by the Utsira Formation in the North Sea, we present numerical results for both cases of pressure competition, and no hydraulic connections between different project operations. It is shown that risk averse agents benefit from collaboration when there is no pressure communication or other interference between agents. It is also demonstrated that pressure communication leads to large variability in the feasible injection rates, but the resulting belief distributions are nevertheless informative and useful for decision making about collaboration.

随着潜在的地质二氧化碳封存项目数量的增加和不同项目之间潜在的压力沟通，不确定地质条件下的风险分担关系到许多项目运营商。本文将项目操作者建模为随机合作博弈中的agent。代理人可以有不同的风险态度，这里定义为愿意接受或多或少的不确定性在预测的二氧化碳储存。这种不确定性源于对地质参数的不了解以及竞争主体未来行为的未知，需要通过数值模拟来估计相应的概率分布。如果合作优于单独注射的基线方案，代理商可以选择分担商业风险。如果它们的操作通过压力通信等方式相互影响，则基线情景可能没有唯一的自然定义。作为补救措施，我们建议将物理数据的不确定性与可行注入动作集合上的最大熵先验分布相结合的信念分布。以北海Utsira地层为例，我们给出了两种压力竞争情况下的数值结果，以及不同项目作业之间没有水力连接的情况。研究表明，风险厌恶的代理在没有压力、沟通或其他干扰的情况下，会从合作中获益。研究还表明，压力通信会导致可行注入率的大变异性，但由此产生的信念分布仍然具有信息和有用的协作决策。

{"title":"Risk sharing in cooperative game models for CO2 storage with uncertain geology and pressure competition","authors":"Per Pettersson, Svenn Tveit, Sarah E. Gasda","doi":"10.1016/j.ijggc.2026.104807","DOIUrl":"10.1016/j.ijggc.2026.104807","url":null,"abstract":"<div><div>With an increasing number of prospective geological CO<sub>2</sub> storage projects and potential pressure communication between different projects, risk sharing under uncertain geological conditions is relevant to many project operators. In this work, the project operators are modeled as agents in a stochastic cooperative game. The agents can have different risk attitudes, here defined as being willing to accept more or less uncertainty in the predicted storage of CO<sub>2</sub>. This uncertainty stems from lack of knowledge of geological parameters as well as unknown future actions of competing agents, and the corresponding probability distributions need to be estimated by numerical simulation.</div><div>The agents can choose to share commercial risk if collaboration is preferable to a baseline scenario of individual injection. If their operations affect each other by means of, e.g., pressure communication, there may be no unique natural definition of a baseline scenario. As a remedy, we suggest belief distributions that combine uncertainty in physical data with maximum entropy prior distributions over the sets of viable injection actions.</div><div>For a realistic storage site, exemplified by the Utsira Formation in the North Sea, we present numerical results for both cases of pressure competition, and no hydraulic connections between different project operations. It is shown that risk averse agents benefit from collaboration when there is no pressure communication or other interference between agents. It is also demonstrated that pressure communication leads to large variability in the feasible injection rates, but the resulting belief distributions are nevertheless informative and useful for decision making about collaboration.</div></div>","PeriodicalId":334,"journal":{"name":"International Journal of Greenhouse Gas Control","volume":"156 ","pages":"Article 104807"},"PeriodicalIF":5.9,"publicationDate":"2026-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149200974","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

The role of fault characterization in CO2 containment risk assessment – a review 故障表征在二氧化碳封存风险评估中的作用——综述

IF 5.9 3区工程技术 Q2 ENERGY & FUELS

International Journal of Greenhouse Gas Control

Pub Date : 2026-10-01 Epub Date: 2026-10-15 DOI: 10.1016/j.ijggc.2026.104810

Elin Skurtveit, Anita Torabi, Yves Guglielmi

Fault zones are key structures controlling subsurface fluid migration and localization of deformations. Although faults have been extensively studied for decades, emerging CO₂ storage projects face challenges quantifying CO₂ fault leakage risk as part of the overall containment risk assessment. This review first outlines the role of faults in CO₂ containment risk with focus on fault zone mapping, architecture and models for fault seal integrity evaluation. Further, we emphasise the hydraulic and mechanical properties in mudrock faults and highlight advances in understanding hydromechanical coupling during fault reactivation based on insight from underground research laboratories. Finally, we discuss the implications for CO₂ containment risk and summarize future research needs for mudrock faults.

断裂带是控制地下流体运移和变形局部化的关键构造。虽然断层已经被广泛研究了几十年，但新兴的CO₂储存项目面临着将CO2断层泄漏风险量化作为整体遏制风险评估的一部分的挑战。本文首先概述了断层在二氧化碳封存风险中的作用，重点介绍了断层带测绘、断层密封完整性评估的结构和模型。此外，我们强调了泥岩断层的水力和力学特性，并强调了基于地下研究实验室的见解，在理解断层再激活过程中的水-力学耦合方面取得的进展。最后，我们讨论了泥岩断层对CO2控制风险的影响，并总结了未来的研究需求。

引用次数: 0

Mapping the public evidence base for CO2 storage monitoring and assurance 绘制二氧化碳储存监测和保证的公共证据基础

IF 5.9 3区工程技术 Q2 ENERGY & FUELS

International Journal of Greenhouse Gas Control

Pub Date : 2026-10-01 Epub Date: 2026-10-03 DOI: 10.1016/j.ijggc.2026.104804

Junqing Sun, Mohan Shangguan, Huaxiu Qin, Cong Li, Di Yang, Xiaojun Sun, Yiming Li, Jinren Lu, Haoshuai Li, Yang Li, Mutai Bao

Rapid expansion of carbon capture, utilization, and storage (CCUS) is increasing the need for publicly accessible environmental evidence that can support monitoring design, storage assurance, permitting, and post-closure oversight across diverse storage settings. Public records remain dispersed across controlled-release experiments, operating projects, natural analogues, incident datasets, project databases, and regulatory documents. We assembled a purposively curated corpus of 23 evidence modules and 1110 project records. Of these, 18 modules contained harmonized contribution coding for the canonical matrix, while five served defined non-matrix roles. The 18 × 99 matrix contained 111 documented-positive cells (6.23%); 95 of 99 raw dimensions were represented, but 80 occurred in only one module. The 86 retained dimensions were grouped into 42 parent concepts, of which 13 were supported by one substantive module, 29 by at least two, and 15 by at least three. The single-module count ranged from 11 to 17 across threshold and QICS checks, and external inclusion of Aquistore reduced it to 10. Seven jurisdictions were above the country-screen medians for both deployment pressure and documented deficit intensity, while only Qatar, Saudi Arabia, and the United Arab Emirates remained in that archetype throughout the full evidence-regulatory weight scan. The screen represents monitoring and disclosure workload, not leakage risk. Transferability was constrained by geological setting, duration, wellbore and pathway context, baseline design, analytical QA/QC, and data accessibility. Priority actions are comparable measurements across contrasting settings, longer public time series, and reporting systems that preserve contextual and methodological information for reuse.

碳捕集、利用和封存（CCUS）的快速发展增加了对可公开获取的环境证据的需求，这些证据可以支持各种封存设置的监测设计、封存保证、许可和关闭后监督。公共记录仍然分散在受控发布实验、运营项目、自然模拟、事件数据集、项目数据库和监管文件中。我们收集了一个由23个证据模块和1110个项目记录精心策划的语料库。其中，18个模块包含规范矩阵的协调贡献编码，而5个模块服务于定义的非矩阵角色。18 × 99基质中有111个阳性细胞（6.23%）；99个原始维度中的95个被表示出来，但80个只出现在一个模块中。保留的86个方面分为42个父概念，其中13个由一个实质性模块支持，29个由至少两个模块支持，15个由至少三个模块支持。通过阈值和QICS检查，单模块计数从11到17不等，而Aquistore的外部包含将其减少到10。在部署压力和记录的赤字强度方面，有7个司法管辖区高于国家屏幕的中位数，而在整个证据监管权重扫描中，只有卡塔尔、沙特阿拉伯和阿拉伯联合酋长国保持在该原型。屏幕表示监控和披露工作量，而不是泄漏风险。可转移性受到地质环境、持续时间、井筒和通道环境、基线设计、分析QA/QC和数据可及性的限制。优先级操作是跨对比设置、较长的公共时间序列和保存上下文和方法信息以供重用的报告系统的可比度量。

{"title":"Mapping the public evidence base for CO2 storage monitoring and assurance","authors":"Junqing Sun, Mohan Shangguan, Huaxiu Qin, Cong Li, Di Yang, Xiaojun Sun, Yiming Li, Jinren Lu, Haoshuai Li, Yang Li, Mutai Bao","doi":"10.1016/j.ijggc.2026.104804","DOIUrl":"10.1016/j.ijggc.2026.104804","url":null,"abstract":"<div><div>Rapid expansion of carbon capture, utilization, and storage (CCUS) is increasing the need for publicly accessible environmental evidence that can support monitoring design, storage assurance, permitting, and post-closure oversight across diverse storage settings. Public records remain dispersed across controlled-release experiments, operating projects, natural analogues, incident datasets, project databases, and regulatory documents. We assembled a purposively curated corpus of 23 evidence modules and 1110 project records. Of these, 18 modules contained harmonized contribution coding for the canonical matrix, while five served defined non-matrix roles. The 18 × 99 matrix contained 111 documented-positive cells (6.23%); 95 of 99 raw dimensions were represented, but 80 occurred in only one module. The 86 retained dimensions were grouped into 42 parent concepts, of which 13 were supported by one substantive module, 29 by at least two, and 15 by at least three. The single-module count ranged from 11 to 17 across threshold and QICS checks, and external inclusion of Aquistore reduced it to 10. Seven jurisdictions were above the country-screen medians for both deployment pressure and documented deficit intensity, while only Qatar, Saudi Arabia, and the United Arab Emirates remained in that archetype throughout the full evidence-regulatory weight scan. The screen represents monitoring and disclosure workload, not leakage risk. Transferability was constrained by geological setting, duration, wellbore and pathway context, baseline design, analytical QA/QC, and data accessibility. Priority actions are comparable measurements across contrasting settings, longer public time series, and reporting systems that preserve contextual and methodological information for reuse.</div></div>","PeriodicalId":334,"journal":{"name":"International Journal of Greenhouse Gas Control","volume":"156 ","pages":"Article 104804"},"PeriodicalIF":5.9,"publicationDate":"2026-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149160738","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0