Carbon Capture Science & Technology最新文献

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Unlocking the potential of CO2 storage in saline aquifers: Challenges, knowledge gaps, and future directions for large-scale storage 释放含盐含水层二氧化碳储存的潜力:挑战、知识差距和大规模储存的未来方向
Carbon Capture Science & Technology Pub Date : 2025-06-21 DOI: 10.1016/j.ccst.2025.100460
Maryana Emad Helmi , Isah Mohammed , Mohamed Gamal Rezk , Afeez Olayinka Gbadamosi , Arshad Raza , Mohamed Mahmoud
{"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 CO<sub>2</sub> storage through CO<sub>2</sub> solubilization in brine and subsequent geochemical interactions that facilitate mineralization. Nevertheless, their heterogeneous nature influences the kinetics of CO<sub>2</sub> 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, CO<sub>2</sub> injectivity, and the security of injected CO<sub>2</sub> 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 CO<sub>2</sub> 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}
引用次数: 0
Advances and future perspectives in post-combustion carbon capture technology using chemical absorption process: A review 化学吸收法燃烧后碳捕集技术的研究进展与展望
Carbon Capture Science & Technology Pub Date : 2025-06-21 DOI: 10.1016/j.ccst.2025.100461
Akinwale Akinmoladun, Olusegun Stanley Tomomewo
{"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 CO<sub>2</sub> 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}
引用次数: 0
Upcycling citrus waste into porous carbon and aerogel materials: State-of-the-art and prospects 将柑橘废弃物升级为多孔碳和气凝胶材料:现状和前景
Carbon Capture Science & Technology Pub Date : 2025-06-20 DOI: 10.1016/j.ccst.2025.100462
Muhammad Imran, Jia Wei Chew
{"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}
引用次数: 0
Incentives and 99% capture rate: Minimizing post-decision regret in a net-zero power world 激励和99%捕获率:在净零电力世界中最小化决策后后悔
Carbon Capture Science & Technology Pub Date : 2025-06-16 DOI: 10.1016/j.ccst.2025.100459
Jeffrey Anderson , David C. Rode , Haibo Zhai , Paul S. Fischbeck
{"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}
引用次数: 0
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 2-氨基-2-甲基-1-丙醇(AMP)和哌嗪(PZ)水溶液中CO2吸收的热力学数据:CO2溶解度、N2O溶解度、CO2吸收热、pH和液体形态
Carbon Capture Science & Technology Pub Date : 2025-06-16 DOI: 10.1016/j.ccst.2025.100458
Diego Morlando, Ardi Hartono, Hanna K. Knuutila
{"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 CO<sub>2</sub> absorption in aqueous blends of 2-amino-2-methyl-1-propanol (AMP) and piperazine (PZ) are measured in this work. The CO<sub>2</sub> solubility in aqueous AMP/PZ solutions, including the CESAR1 blend, was measured at temperatures from 40 to 150 °C, extending the range of CO<sub>2</sub> loading and temperature previously investigated.</div><div>The heat of absorption of CO<sub>2</sub> 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 N<sub>2</sub>O solubility in the CESAR1 solvent was measured from 25 to 80 °C and up to CO<sub>2</sub> 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 N<sub>2</sub>O solubility decreases as a function of temperature and CO<sub>2</sub> loading as a result of the salting-out effect.</div><div>The effect of CO<sub>2</sub>, 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 CO<sub>2</sub> 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 CO<sub>2</sub> dissolved exists mainly as PZ-carbamate at relatively low CO<sub>2</sub> 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 CO<sub>2</sub> loading, the bicarbonate/carbonate and PZ-dicarbamate are the major products. The AMP carbamate is not a major product across the whole range of CO<sub>2</sub> 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}
引用次数: 0
Framework for CO2 impurity monitoring in CCUS infrastructure CCUS基础设施中二氧化碳杂质监测框架
Carbon Capture Science & Technology Pub Date : 2025-06-09 DOI: 10.1016/j.ccst.2025.100453
Kenneth René Simonsen, Dennis Severin Hansen, Simon Pedersen
{"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 CO<sub>2</sub> transport becomes increasingly important. Effective monitoring of CO<sub>2</sub> 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 CO<sub>2</sub> 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 H<sub>2</sub>O 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 CO<sub>2</sub> 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 CO<sub>2</sub> 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}
引用次数: 0
Techno-economic assessment of waste heat-powered direct air capture in the refinery and petrochemical sectors in Saudi Arabia 沙特阿拉伯炼油和石化部门废热动力直接空气捕获的技术经济评估
Carbon Capture Science & Technology Pub Date : 2025-06-06 DOI: 10.1016/j.ccst.2025.100451
Naser Odeh , Raphael W. Apeaning , Feras Rowaihy
{"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}
引用次数: 0
Harnessing microalgae to mitigate the environmental impact of the cement industry: Emission reduction and bio-cement production 利用微藻减轻水泥工业对环境的影响:减排和生物水泥生产
Carbon Capture Science & Technology Pub Date : 2025-06-05 DOI: 10.1016/j.ccst.2025.100448
Ve Van Le , Maranda Esterhuizen , Quynh-Giao Tran , Jin-Ho Yun , Man-Young Jung , Sang-Ah Lee
{"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}
引用次数: 0
A Highly Efficient Pt/TiO2-NaY-x Catalyst for RWGS reaction: Enhancement Effect of Adsorbent NaY-x on CO2 Hydrogenation Conversion 一种用于RWGS反应的高效Pt/TiO2-NaY-x催化剂:吸附剂NaY-x对CO2加氢转化的增强作用
Carbon Capture Science & Technology Pub Date : 2025-06-04 DOI: 10.1016/j.ccst.2025.100452
Qiuming Zhou , Shuaishuai Lyu , Hongwei Li , Congcong Niu , Rongjun Zhang , Chaopeng Hou , Binhang Yan , Sen Wang , Bo Peng , Run Xu , Mingfeng Li
{"title":"A Highly Efficient Pt/TiO2-NaY-x Catalyst for RWGS reaction: Enhancement Effect of Adsorbent NaY-x on CO2 Hydrogenation Conversion","authors":"Qiuming Zhou ,&nbsp;Shuaishuai Lyu ,&nbsp;Hongwei Li ,&nbsp;Congcong Niu ,&nbsp;Rongjun Zhang ,&nbsp;Chaopeng Hou ,&nbsp;Binhang Yan ,&nbsp;Sen Wang ,&nbsp;Bo Peng ,&nbsp;Run Xu ,&nbsp;Mingfeng Li","doi":"10.1016/j.ccst.2025.100452","DOIUrl":"10.1016/j.ccst.2025.100452","url":null,"abstract":"<div><div>Selective removal of H<sub>2</sub>O <em>in-situ</em> from the reverse water gas shift (RWGS) reaction system is an effective approach to intensify the CO<sub>2</sub> conversion dictated by thermodynamics. Here, a composite material is prepared by combining a water adsorbent zeolite NaY-2 which modified by hydrothermal treatment at 500°C with Pt/TiO<sub>2</sub> catalyst. The synthesized Pt/TiO<sub>2</sub>-NaY-2 exhibits much higher activity and CO selectivity than conventional Pt/TiO<sub>2</sub>. It shows the highest CO<sub>2</sub> conversion of 42.3% and consistently exceeds the corresponding thermodynamic equilibrium conversion (28.6%) over 120 h on stream with 100% CO selectivity at 340°C. The persistent catalytic enhancement is mainly attributed to the well aligning between the desorption temperature of H<sub>2</sub>O on NaY-2 (270°C, 330°C) and the reaction temperature. The introduced NaY-2 demonstrates an electronic effect on Pt/TiO<sub>2</sub> during the reduction process and generates an electron-rich Pt species. The created Pt<sup>δ−</sup> sites on Pt/TiO<sub>2</sub>-NaY-2 possess higher intrinsic catalytic activity than Pt<sup>0</sup> sites on Pt/TiO<sub>2</sub>. The interaction also reduces Pt average particle size and thus weakens the adsorption of CO on Pt, which inhibits the methanation side reaction then improves the CO selectivity on Pt/TiO<sub>2</sub>-NaY-2. The RWGS reactions on the synthesized Pt-based catalysts proceed through intermediate decomposition mechanism exposed by <em>in-situ</em> IR spectroscopy. The findings of this work provide information of high interest to guide future research on RWGS reaction intensified process via <em>in-situ</em> removal of H<sub>2</sub>O.</div></div>","PeriodicalId":9387,"journal":{"name":"Carbon Capture Science & Technology","volume":"16 ","pages":"Article 100452"},"PeriodicalIF":0.0,"publicationDate":"2025-06-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144469913","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}
引用次数: 0
Emerging carbon capture applications of aerogels in the oil and gas sector: A review of current trends and future prospects 新兴的气凝胶碳捕集技术在油气领域的应用:当前趋势和未来前景综述
Carbon Capture Science & Technology Pub Date : 2025-06-01 DOI: 10.1016/j.ccst.2025.100435
Abeer․ A Alarawi , Rima T․ Alfaraj , Tawfik․ A Saleh , Almohannad A․ Alghamdi
{"title":"Emerging carbon capture applications of aerogels in the oil and gas sector: A review of current trends and future prospects","authors":"Abeer․ A Alarawi ,&nbsp;Rima T․ Alfaraj ,&nbsp;Tawfik․ A Saleh ,&nbsp;Almohannad A․ Alghamdi","doi":"10.1016/j.ccst.2025.100435","DOIUrl":"10.1016/j.ccst.2025.100435","url":null,"abstract":"<div><div>Over the past three decades, the alarming surge in carbon dioxide (CO₂) emissions, estimated at between 330 and 350 gigatons annually, has sparked global concerns. This rapid increase, driven by industrial expansion, fossil fuel dependence, and deforestation, highlights the pressing need for scalable and economically viable carbon sequestration methods. With their unique properties, such as high porosity and surface area, aerogels have emerged as a beacon of hope for industrial CO₂ capture. However, their practical applications are hindered by challenges such as mechanical fragility and high production costs.</div><div>This literature review elucidates the environmental effects, economic viability, life cycle assessments, current trends, and future possibilities of aerogels used in CO₂ capture, particularly in the oil and gas industry, where their potential is significant. We demonstrate the existing methods for capturing and storing CO₂ within the sector. Additionally, we thoroughly analyze CO₂ capture performance using various adsorbents, including amines, metal-organic frameworks, carbon, zeolites, and aerogel-based options. This analysis considers factors such as CO₂ absorption capacity, energy required for regeneration, durability, economic feasibility, environmental implications, life cycle assessments, and distinct advantages. Moreover, we explore enhancements in aerogel fabrication methods, emphasizing large-scale affordability, cost-effectiveness, economic viability, and their respective advantages and disadvantages. We also provide an in-depth evaluation of different types of aerogels, highlighting their specific strengths and capabilities for CO₂ capture. We also present the results of integrating materials science, industrial engineering, and carbon mitigation policy by presenting various surface modification and integration techniques applied to aerogels to enhance their stability and effectiveness for CO₂ capture applications. Our analytical approach encompasses a techno-economic feasibility study and cost reduction strategies within key market sectors.</div><div>As the energy industry moves towards achieving net-zero emissions, we thoroughly assess the broad applications of aerogels in this field. We summarize existing case studies and ongoing research efforts focused on developing aerogels for large-scale CO₂ capture. Finally, we evaluate current challenges, environmental impacts, and economic considerations, offering a comprehensive outlook filled with the potential to enhance the use of aerogels in CO₂ capture and fostering optimism regarding the energy industry's future.</div></div>","PeriodicalId":9387,"journal":{"name":"Carbon Capture Science & Technology","volume":"15 ","pages":"Article 100435"},"PeriodicalIF":0.0,"publicationDate":"2025-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144204311","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}
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