Carbon Capture Science & Technology最新文献

{"title":"Multiscale investigation of metal substitution and diffusion mechanisms for enhanced CO2 adsorption: A case study of SIFSIX-3-Cu MOFs","authors":"Dehao Kong ,&nbsp;Ning Yang ,&nbsp;Yuheng Chuai ,&nbsp;Shiwang Gao ,&nbsp;Zhenyu Liu ,&nbsp;Jin Xuan ,&nbsp;Lei Xing","doi":"10.1016/j.ccst.2025.100464","DOIUrl":"10.1016/j.ccst.2025.100464","url":null,"abstract":"<div><div>Carbon capture through adsorption is acknowledged as a promising engineering solution, notable for its low energy consumption, high controllability, and compatibility with renewable energy sources. Metal-organic frameworks (MOFs) have gained significant attention as sorbents for low-energy CO₂ separation from flue gases. In this study, we conducted molecular dynamics (MD) simulations to study the charge distribution of atoms in SIFSIX-3-M (where <em>M</em> = Ni, Co, Cu, Zn, Fe) with various pore parameters. Results indicated that SIFSIX-3-Cu possesses a large van der Waals surface and improved accessible solvent surface, suggesting the enhanced gas adsorption capabilities. Further analysis of the charge distribution and differential density maps for CO₂ adsorption revealed that the primary adsorption site for CO₂ within the pore is largely influenced by the strong interactions with the fluorine atoms in the framework. By calculating the radial distribution function (RDF) of the carbon atoms in CO₂ relative to the silicon atoms in SIFSIX-3-Cu, we observed a notably strong interaction between the carbon atoms and the neighboring fluorine atoms near the silicon atoms at 5.75 Å, that provides a critical binding site for CO₂ adsorption. Additionally, we employed computational fluid dynamics (CFD) simulations to study the breakthrough curves of N₂_<img>CO₂ gas mixture passing through a porous packed bed constructed by SIFSIX-3-Cu. The results demonstrated effective separation of N₂ and CO₂, highlighting the strong selectivity of SIFSIX-3-Cu for CO₂ adsorption. Moreover, SIFSIX-3-Cu exhibited excellent thermal stability, maintaining consistent CO₂ uptake across multiple temperature swing adsorption (TSA) cycles. This study provides a solid foundation for further optimization of the SIFSIX series MOFs for advanced carbon capture applications.</div></div>","PeriodicalId":9387,"journal":{"name":"Carbon Capture Science & Technology","volume":"16 ","pages":"Article 100464"},"PeriodicalIF":0.0,"publicationDate":"2025-06-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144535196","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Preliminary assessment of calcium extraction reagents for indirect carbonation","authors":"Zian Tang ,&nbsp;Yuanrui Song ,&nbsp;Xingyu Zhu ,&nbsp;Bingyang He ,&nbsp;Wenyu Li ,&nbsp;Lingling Zhang","doi":"10.1016/j.ccst.2025.100463","DOIUrl":"10.1016/j.ccst.2025.100463","url":null,"abstract":"<div><div>The \"indirect carbonation\" technique accelerates carbonation in hydroxides, slags, or cementitious materials using calcium extraction reagents (CERs), thereby facilitating carbon capture. However, selecting the optimal reagent is often time-consuming. To streamline this, we developed a chemical equilibrium-based evaluation method to assess CER effectiveness. This method considers pH, Ca-complex stability constants, ligand concentration, and solubility product constants, providing a concentration-based or dimensionless evaluation index. To validated the method, we conducted carbonation tests using six different ligands and compared their practical acceleration performance on Ca(OH)₂, steel slag, and cement with the calculated outcomes. Our findings show that the method accurately predicts CER performance in simple systems like Ca(OH)₂ and qualitatively evaluates CERs in more complex systems like steel slag and cement. Additionally, we created a user-friendly program to assist in CER evaluation, simplifying the pre-screening process.</div></div>","PeriodicalId":9387,"journal":{"name":"Carbon Capture Science & Technology","volume":"16 ","pages":"Article 100463"},"PeriodicalIF":0.0,"publicationDate":"2025-06-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144535195","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Unlocking the potential of CO2 storage in saline aquifers: Challenges, knowledge gaps, and future directions for large-scale storage","authors":"Maryana Emad Helmi ,&nbsp;Isah Mohammed ,&nbsp;Mohamed Gamal Rezk ,&nbsp;Afeez Olayinka Gbadamosi ,&nbsp;Arshad Raza ,&nbsp;Mohamed Mahmoud","doi":"10.1016/j.ccst.2025.100460","DOIUrl":"10.1016/j.ccst.2025.100460","url":null,"abstract":"<div><div>Saline aquifers represent a significant geological option for large-scale CO₂ storage through CO₂ solubilization in brine and subsequent geochemical interactions that facilitate mineralization. Nevertheless, their heterogeneous nature influences the kinetics of CO₂ dissolution and long-term stability. This review assesses advancements in experimental and modelling efforts regarding CO2 solubilization in saline aquifers, considering natural convection, diffusion, and dispersion factors. It also investigates the application of nanobubble technology to enhance storage capacity and stability, along with various technologies that could be utilized for its generation. Furthermore, geochemical implications, mineral trapping, and field-scale observations have been reviewed to offer a comprehensive understanding of the storage mechanisms. Our findings indicate that optimizing brine chemistry and harnessing nanobubble technology could augment storage capacity and security. Furthermore, careful selection of injection sites, CO₂ injectivity, and the security of injected CO₂ are factors that must be addressed to unlock the storage potential of saline aquifers. Moreover, enhanced modelling approaches are required to reflect aquifer heterogeneity, which continues to pose a significant challenge in accurately modelling the long-term behaviour of CO₂ in saline aquifers.</div></div>","PeriodicalId":9387,"journal":{"name":"Carbon Capture Science & Technology","volume":"16 ","pages":"Article 100460"},"PeriodicalIF":0.0,"publicationDate":"2025-06-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144517756","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Advances and future perspectives in post-combustion carbon capture technology using chemical absorption process: A review","authors":"Akinwale Akinmoladun,&nbsp;Olusegun Stanley Tomomewo","doi":"10.1016/j.ccst.2025.100461","DOIUrl":"10.1016/j.ccst.2025.100461","url":null,"abstract":"<div><div>Population growth and economic development are increasing greenhouse gas emissions, necessitating the implementation of sustainable practices. Post-combustion carbon capture (PCC) is an effective technology for reducing emissions. This review discusses chemical absorption being the most advanced method in PCC. It presents challenges and improvements in energy, cost, and environmental impacts of absorption processes. New solvents, renewable integration, innovative and hybrid configurations are reducing costs, with regeneration energy as low as 2 GJ/t CO₂ in recent pilot-scale tests. Novel machine learning algorithms show high accuracy in predicting outcomes for solvent screening, process modelling, and optimization. They significantly reduce processing and data acquisition time by 47 %. We present technological improvements, policy incentives, and emerging business models in carbon capture and storage (CCS) for a thorough review. Several countries are yet to establish robust regulations for CCS development. We identify the impacts of part-load operation of power plants due to renewable energy sources in the grid. This study combines technical insights, business considerations, and regulatory developments to benefit a broad audience, including policymakers, industries, and academia. Our findings underscore the importance of interdisciplinary collaboration, policy incentives, and investment driven by evolving business models in upscaling PCC technology. Finally, we present recommendations and research priorities for the successful implementation of chemical absorption-based PCC.</div></div>","PeriodicalId":9387,"journal":{"name":"Carbon Capture Science & Technology","volume":"16 ","pages":"Article 100461"},"PeriodicalIF":0.0,"publicationDate":"2025-06-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144513823","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Upcycling citrus waste into porous carbon and aerogel materials: State-of-the-art and prospects","authors":"Muhammad Imran,&nbsp;Jia Wei Chew","doi":"10.1016/j.ccst.2025.100462","DOIUrl":"10.1016/j.ccst.2025.100462","url":null,"abstract":"<div><div>Advanced porous carbon and aerogel materials are widely applied in water treatment, catalysis, energy storage, and biomedical engineering. With increasing focus on sustainability, renewable biomass sources have emerged as promising feedstocks due to their rich cellulose and lignin content. This review provides the first integrated analysis of both synthesis and post-pyrolysis activation methods specifically tailored to citrus waste-derived porous materials, highlighting how processing conditions impact structure and functionality. We examine state-of-the-art techniques, including microwave-assisted hydrothermal synthesis, dual-axis freezing, and template-directed activation, and compare their effects on surface area, porosity, and scalability. Moreover, this review uniquely explores emerging strategies such as AI-based optimization and low-temperature solvent-free activation, which offer pathways toward large-scale implementation. We also discuss current limitations and propose targeted future directions. Upcycling citrus waste into multifunctional porous materials not only addresses biomass waste management, but also opens up new avenues for designing cost-effective, high-performance materials for green technology applications.</div></div>","PeriodicalId":9387,"journal":{"name":"Carbon Capture Science & Technology","volume":"16 ","pages":"Article 100462"},"PeriodicalIF":0.0,"publicationDate":"2025-06-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144513824","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Incentives and 99% capture rate: Minimizing post-decision regret in a net-zero power world","authors":"Jeffrey Anderson ,&nbsp;David C. Rode ,&nbsp;Haibo Zhai ,&nbsp;Paul S. Fischbeck","doi":"10.1016/j.ccst.2025.100459","DOIUrl":"10.1016/j.ccst.2025.100459","url":null,"abstract":"<div><div>To hasten power-sector decarbonization, the U.S. Congress legislated changes to the tax code to provide incentives for renewable and zero-carbon capacity expansion and increase existing 45Q incentives for carbon capture and storage (CCS) and direct air capture and storage. We conduct both detailed deterministic and stochastic techno-economic analyses of existing coal-fired electric generating units (CFEGUs) to determine the least-cost solution for a net-zero abate-or-retire-and-replace decision with 17 fungible technologies. Our analysis indicates that CCS capacity at a 99 % capture rate is often economically preferable to renewable and zero-carbon capacity when a 4-hour (or greater) adequacy constraint is imposed. We also show that additional CCS capacity becomes financially viable when the CFEGU economic life matches the incentive duration. Importantly, our analysis indicates that the deployment of 99 % capture rate CCS can decrease the expected post-decision regret and increase the ease of this net-zero decision.</div></div>","PeriodicalId":9387,"journal":{"name":"Carbon Capture Science & Technology","volume":"16 ","pages":"Article 100459"},"PeriodicalIF":0.0,"publicationDate":"2025-06-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144481132","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Thermodynamic data for CO2 absorption in aqueous 2-amino-2-methyl-1-propanol (AMP) and piperazine (PZ) solutions: CO2 solubility, N2O solubility, heat of absorption of CO2, pH and liquid speciation","authors":"Diego Morlando,&nbsp;Ardi Hartono,&nbsp;Hanna K. Knuutila","doi":"10.1016/j.ccst.2025.100458","DOIUrl":"10.1016/j.ccst.2025.100458","url":null,"abstract":"<div><div>New thermodynamic data for CO₂ absorption in aqueous blends of 2-amino-2-methyl-1-propanol (AMP) and piperazine (PZ) are measured in this work. The CO₂ solubility in aqueous AMP/PZ solutions, including the CESAR1 blend, was measured at temperatures from 40 to 150 °C, extending the range of CO₂ loading and temperature previously investigated.</div><div>The heat of absorption of CO₂ of aqueous AMP and AMP/PZ solutions was measured from 40 to 80 °C. The results indicate that the heat of absorption is constant with the temperature but it is affected by the AMP/PZ concentration ratio.</div><div>The N₂O solubility in the CESAR1 solvent was measured from 25 to 80 °C and up to CO₂ loading of 0.52 <span><math><mrow><mtext>mo</mtext><msub><mi>l</mi><mrow><mi>C</mi><msub><mi>O</mi><mn>2</mn></msub></mrow></msub></mrow></math></span>/<span><math><mrow><mtext>mo</mtext><msub><mi>l</mi><mtext>amine</mtext></msub></mrow></math></span>. The N₂O solubility decreases as a function of temperature and CO₂ loading as a result of the salting-out effect.</div><div>The effect of CO₂, AMP and PZ concentration on the pH was experimentally determined. Liquid speciation for the CESAR1 blend and an aqueous solution of 1.5 M AMP + 0.75 M PZ was measured at CO₂ loading from 0 to 0.80 <span><math><mrow><mtext>mo</mtext><msub><mi>l</mi><mrow><mi>C</mi><msub><mi>O</mi><mn>2</mn></msub></mrow></msub></mrow></math></span>/<span><math><mrow><mtext>mo</mtext><msub><mi>l</mi><mtext>amine</mtext></msub><mo>.</mo></mrow></math></span> The results indicate that the CO₂ dissolved exists mainly as PZ-carbamate at relatively low CO₂ loading up to 0.40 <span><math><mrow><mtext>mo</mtext><msub><mi>l</mi><mrow><mi>C</mi><msub><mi>O</mi><mn>2</mn></msub></mrow></msub></mrow></math></span>/<span><math><mrow><mtext>mo</mtext><msub><mi>l</mi><mtext>amine</mtext></msub></mrow></math></span>, while at higher CO₂ loading, the bicarbonate/carbonate and PZ-dicarbamate are the major products. The AMP carbamate is not a major product across the whole range of CO₂ concentration investigated.</div><div>The experimental data broaden the existing dataset and can support the development of rigorous thermodynamic models essential for evaluating energy requirements and environmental impacts of CO₂ capture using CESAR1 technology.</div></div>","PeriodicalId":9387,"journal":{"name":"Carbon Capture Science & Technology","volume":"16 ","pages":"Article 100458"},"PeriodicalIF":0.0,"publicationDate":"2025-06-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144535498","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Framework for CO2 impurity monitoring in CCUS infrastructure","authors":"Kenneth René Simonsen,&nbsp;Dennis Severin Hansen,&nbsp;Simon Pedersen","doi":"10.1016/j.ccst.2025.100453","DOIUrl":"10.1016/j.ccst.2025.100453","url":null,"abstract":"<div><div>As Carbon Capture, Utilization, and Storage (CCUS) expands, the need for safe and efficient CO₂ transport becomes increasingly important. Effective monitoring of CO₂ impurities is essential for maintaining system integrity and ensuring regulatory compliance across the CCUS chain. However, no standardized approach for impurity monitoring currently exists, and specifications vary depending on the project and transport method. This study identifies key stages in the CCUS process where impurity monitoring is critical. The impurity thresholds defined by the Northern Lights and Porthos projects are assessed in terms of corrosion mitigation, minimization of energy requirements, protection of human and environmental safety, and preservation of storage integrity. A conceptual framework is proposed to underscore the importance of CO₂ quality compliance at points of ownership handover, where decisions are determined based on measured impurity concentrations. The evaluation of impurities shows that impurities can significantly impact transport safety, efficiency, and storage performance, justifying the need for defined concentration limits. The findings suggest a risk-informed monitoring approach, where the frequency and precision of measurement are guided by the potential impact of each impurity, with H₂O highlighted as a critical case requiring high-frequency monitoring. A comparative analysis of available sensing technologies reveals that no single method can detect all impurities listed in the CO₂ specifications. Instead, a combined monitoring strategy is proposed to meet specification requirements. As CCUS deployment accelerates, effective impurity monitoring will be essential to support regulatory compliance, taxation frameworks, operational control, and the development of secure and scalable CO₂ transport networks.</div></div>","PeriodicalId":9387,"journal":{"name":"Carbon Capture Science & Technology","volume":"16 ","pages":"Article 100453"},"PeriodicalIF":0.0,"publicationDate":"2025-06-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144291578","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Techno-economic assessment of waste heat-powered direct air capture in the refinery and petrochemical sectors in Saudi Arabia","authors":"Naser Odeh ,&nbsp;Raphael W. Apeaning ,&nbsp;Feras Rowaihy","doi":"10.1016/j.ccst.2025.100451","DOIUrl":"10.1016/j.ccst.2025.100451","url":null,"abstract":"<div><div>Direct Air Capture (DAC) is increasingly recognized as a critical technology for achieving net-zero emissions, yet its large-scale deployment remains constrained by high energy and operational costs—particularly the need for reliable low-cost source of heat. This study presents a comprehensive technical and economic assessment of integrating DAC with low-grade industrial waste heat across Saudi Arabia’s refinery and petrochemical sectors. Using facility-level data, we estimate that approximately 84 TWh/year of waste heat is available—sufficient to support the capture of up to 42 MtCO₂ annually, offsetting around 34 % of current stationary emissions from these sectors. Our analysis shows that repurposing this underutilized thermal energy could reduce the average levelized cost of DAC (LCOD) for future commercial-scale systems to $148.5 per ton, significantly below current global DAC cost benchmarks. A marginal abatement cost curve reveals that the most cost-effective opportunities are concentrated in large, high-throughput industrial sites, emphasizing the importance of scale, centralized integration, and waste heat clustering. Further, our sensitivity analysis highlights the scale-up exponent, electricity price, and capital cost assumptions as the most influential factors driving cost outcomes. Overall, this study offers a scalable and actionable blueprint for DAC deployment in high-emitting industrial sectors and aligns closely with Saudi Arabia’s Circular Carbon Economy framework and 2060 net-zero target.</div></div>","PeriodicalId":9387,"journal":{"name":"Carbon Capture Science & Technology","volume":"16 ","pages":"Article 100451"},"PeriodicalIF":0.0,"publicationDate":"2025-06-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144306283","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Harnessing microalgae to mitigate the environmental impact of the cement industry: Emission reduction and bio-cement production","authors":"Ve Van Le ,&nbsp;Maranda Esterhuizen ,&nbsp;Quynh-Giao Tran ,&nbsp;Jin-Ho Yun ,&nbsp;Man-Young Jung ,&nbsp;Sang-Ah Lee","doi":"10.1016/j.ccst.2025.100448","DOIUrl":"10.1016/j.ccst.2025.100448","url":null,"abstract":"<div><div>The cement industry has been the cornerstone of economic development since the Industrial Revolution. However, the calcination process used to produce cement raw materials releases various pollutants, such as carbon dioxide, nitrogen oxides, and sulfur oxides, which are key contributors to global warming. Therefore, innovative technologies are urgently needed to minimize the environmental impact of the cement industry. In recent years, microalgae have gained attention because of their advantages in recovering resources and reducing the impacts of industrial pollutants. The use of microalgae to address the environmental challenges associated with cement production remains largely overlooked in current reviews. This review summarizes the recent advances in the utilization of microalgae to address the environmental challenges posed by the cement industry. Microalgae offer two main pathways for environmental mitigation: the (i) production of bio-cement as an eco-friendly alternative for construction and (ii) conversion of cement flue gases into biomass feedstock with high-value downstream applications. We also identify existing challenges and propose an integrative “Microalgae–Bacteria Consortium” system as a sustainable strategy for the significant reduction of the environmental footprint of cement production. This approach has the potential to transform the cement industry into a more sustainable and eco-friendlier sector. Overall, microalgae provide an innovative and sustainable platform to revolutionize the cement industry into a greener sector, supporting the global shift toward a low-carbon, circular economy.</div></div>","PeriodicalId":9387,"journal":{"name":"Carbon Capture Science & Technology","volume":"16 ","pages":"Article 100448"},"PeriodicalIF":0.0,"publicationDate":"2025-06-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144222915","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}