Carbon Capture Science & Technology最新文献

{"title":"One-step synthesis of epoxy/cyclic carbonate bifunctional polycarbonates with functional groups","authors":"Jie Huang,&nbsp;Boxiong Shen","doi":"10.1016/j.ccst.2025.100400","DOIUrl":"10.1016/j.ccst.2025.100400","url":null,"abstract":"<div><div>The synthesis of functionalized polycarbonates from CO₂ has gained significant attention due to their versatile properties and potential in high-performance applications. A novel trinuclear tetradentate Schiff base chromium complex <strong>1</strong> was designed and synthesized, and combined with bis(triphenylphosphine) imidazolium salt (PPNN₃) to form a binary catalytic system (complex <strong>1</strong>/PPNN₃). This system was employed to catalyze the copolymerization of CO₂ with bicyclic epoxide compounds containing both terminal and internal epoxy groups (VCHDEP). Experimental results demonstrate that a bifunctional polycarbonate (PVCH) was efficiently synthesized through a simple one-step process, featuring a polycarbonate cyclohexene ester backbone with side chains containing both epoxy (EP) and cyclic carbonate (CC) groups. The EP/CC ratio can be precisely tuned by varying the reaction temperature and the molar ratio of PPNN₃, enabling control over polymer properties. Notably, the glass transition temperature (Tg) of PVCH was found to be 164.5 °C, significantly higher than that of conventional polycarbonates synthesized from bisphenol A (154 °C), indicating superior thermal stability and mechanical robustness. The complex <strong>1</strong>/PPNN₃ catalytic system selectively catalyzed the ring-opening copolymerization of epoxides to form the polymer backbone, while retaining unreacted epoxy groups in the side chains. In this catalytic system, the enthalpy change (ΔHₚ^θ) for the VCHDEP ring-opening polymerization is -20.5 kJ mol^-1, the entropy change (ΔSₚ^θ) is -80.3 J mol^-1 K^-1, the Gibbs free energy change (ΔGₚ^θ) is 3.5 kJ mol^-1, and the activation energy (Ea) for PVCH synthesis is 56.8 kJ/mol. Furthermore, hydrolysis and amination reactions were performed on the cyclic carbonate and epoxy groups in PVCH, yielding polycarbonates with hydroxyl, amide, and other functional groups, which further enhance the material's versatility for applications requiring strong adhesion, biocompatibility, and chemical reactivity. This work not only demonstrates a highly efficient and selective catalytic system but also provides a strategy for expanding the application potential of CO₂-based polycarbonates in advanced materials.</div></div>","PeriodicalId":9387,"journal":{"name":"Carbon Capture Science & Technology","volume":"15 ","pages":"Article 100400"},"PeriodicalIF":0.0,"publicationDate":"2025-03-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143643234","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Accelerated CO2 capture with controllable mineralisation via reactive bubble formation","authors":"Su-Ho Ahn ,&nbsp;Duckshin Park ,&nbsp;Bo-Sang Kim ,&nbsp;Su-Min Lee ,&nbsp;Mang Muan Lian ,&nbsp;Younghee Jang ,&nbsp;Kyunghoon Kim ,&nbsp;Sangwon Ko ,&nbsp;Byung-Hyun Park ,&nbsp;Jinsik Choi ,&nbsp;Seungkyu Shin ,&nbsp;Junpyo Cho ,&nbsp;Liguang Wang ,&nbsp;Hangil Park ,&nbsp;Jung-Ho Yun","doi":"10.1016/j.ccst.2025.100394","DOIUrl":"10.1016/j.ccst.2025.100394","url":null,"abstract":"<div><div>Carbon Capture and Utilisation (CCU) is crucial for mitigating greenhouse gas emissions from coal-fired power plants. This study presents a bubble reactor system using sodium carbonate (Na₂CO₃) and frothing reagents to improve both efficiency and sustainability. Various glycol-based polymers, along with an alcohol-based surfactant widely used in the mining and minerals industry, were evaluated for their effects on carbon dioxide (CO₂) bubble size and removal efficiency. The results demonstrate that the frothing reagents not only reduced bubble size but also increased foam layer thickness, significantly improving CO₂ removal efficiency. The thicker foam layer associated with the glycol-type polymers generates a larger interfacial area and longer gas residence time, accounting for the differences in CO₂ removal efficiency. Furthermore, after removing CO₂, the captured CO₂ was mineralised into calcium carbonate (CaCO₃). Notably, the calcium carbonate existed predominantly in the form of vaterite and the abundance and morphology of vaterite changed with adding one of the polymers into the CO₂-loaded Na₂CO₃ solution. This paper underscores the potential for scalable, sustainable CCU, along with the formation of valuable by-products.</div></div>","PeriodicalId":9387,"journal":{"name":"Carbon Capture Science & Technology","volume":"15 ","pages":"Article 100394"},"PeriodicalIF":0.0,"publicationDate":"2025-03-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143686272","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Mechanistic study and performance enhancement of CO2 absorption using DEHA as a viscosity modifier in biphasic solvent systems","authors":"Yimeng Luo ,&nbsp;Shijian Lu ,&nbsp;Ling Liu ,&nbsp;Guojun Kang ,&nbsp;Fei Yang ,&nbsp;Wenju Zhu ,&nbsp;Yanhui Ma ,&nbsp;Xianzhu Huang ,&nbsp;Zhen Chen ,&nbsp;Junhua Li","doi":"10.1016/j.ccst.2025.100392","DOIUrl":"10.1016/j.ccst.2025.100392","url":null,"abstract":"<div><div>Biphasic absorbents have garnered increasing attention in CO₂ capture due to their potential for reducing energy consumption. However, the high viscosity of the CO₂-rich phase after phase separation often leads to challenges such as increased flow resistance, reduced heat transfer efficiency, and instability of phase separation. To address these issues, this study proposes a novel phase-change capture system comprising AEEA-DEHA-H₂O (AEEA: 2-(2-aminoethylamino)ethanol, DEHA: N, N-diethylhydroxylamine). The experimental results revealed that a biphasic absorbent composed of 30wt% AEEA, 40wt% DEHA, and 30wt% H₂O achieved an absorption capacity of 0.93 mol CO₂·mol⁻¹ amine, with a desorption efficiency of 75.3 % at 110 °C and a viscosity of 58 mPa·s after saturation at 40 °C. The energy consumption of this system was 20.5 % lower than that of the conventional MEA solvent. Quantum chemical calculations indicated that the hydroxyl group in the DEHA structure was directly bonded to the nitrogen atom, which enhanced the hydrophilicity of the system. This structural feature allowed DEHA molecules to form strong hydrogen bonds with water, thereby increasing their water solubility and reducing the viscosity of the system. Furthermore, the strong affinity of AEEA-derived products for other CO₂ capture products and H₂O resulted in their aggregation into a CO₂-rich phase. In contrast, the relatively low polarity of DEHA led to a weaker affinity for AEEA-derived products, allowing DEHA to separate from the solution and form a CO₂-lean phase.</div></div>","PeriodicalId":9387,"journal":{"name":"Carbon Capture Science & Technology","volume":"15 ","pages":"Article 100392"},"PeriodicalIF":0.0,"publicationDate":"2025-03-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143562623","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Outside Back Cover","authors":"","doi":"10.1016/S2772-6568(25)00038-7","DOIUrl":"10.1016/S2772-6568(25)00038-7","url":null,"abstract":"","PeriodicalId":9387,"journal":{"name":"Carbon Capture Science & Technology","volume":"14 ","pages":"Article 100398"},"PeriodicalIF":0.0,"publicationDate":"2025-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143580545","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"A study of ex-situ carbon mineralization under low intensity aqueous reaction","authors":"Adam Sjolund ,&nbsp;Olivia Andrea Wrenn ,&nbsp;Amy Tattershall ,&nbsp;Thomas Sasser ,&nbsp;Lisa A. Thompson ,&nbsp;Jennifer Wade","doi":"10.1016/j.ccst.2025.100391","DOIUrl":"10.1016/j.ccst.2025.100391","url":null,"abstract":"<div><div>Safe, scalable and permanent options for carbon dioxide storage is essential to achieve net negative greenhouse gas emissions and limit catastrophic global warming. A benign and thermodynamically stable form of CO₂ storage is a carbonate mineral. This work examined ex situ carbon mineralization of magnesium rich ultramafic and mafic rocks under previously unstudied low intensity aqueous reaction conditions (<em>T</em> = 25 °C, PCO₂ = 80 kPa, pH = 7). Carbonate reaction extents, dissolved metals and formed carbonate phases were evaluated in experiments ranging from days to months using thermogravimetric and evolved gas analysis, dissolved elemental analysis, BET surface area, and semi-quantitative powder x-ray diffraction methods. Reaction kinetics were similar across both mineral types, with 12 % reaction extent achieved in under ten weeks. After 160 days of low intensity reaction, the ultramafic xenolith trapped 9 ± 2 wt% CO₂. After 64 days of reaction, a scoriaceous picrite basalt trapped 7 ± 3 wt% CO_2. Primarily amorphous magnesium carbonate was formed, with partial conversion to magnesite upon oven drying. The CO₂ mineralization of abundant surface rocks under mild conditions offer potential for alternative mineralization strategies for permanent negative CO₂ emissions.</div></div>","PeriodicalId":9387,"journal":{"name":"Carbon Capture Science & Technology","volume":"15 ","pages":"Article 100391"},"PeriodicalIF":0.0,"publicationDate":"2025-02-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143562622","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Post-combustion absorption carbon capture assisted by sorption-compression cascade heat pump","authors":"Y. Huang ,&nbsp;W. Liu ,&nbsp;Y.X. Zhang ,&nbsp;X.J. Zhang ,&nbsp;T. Wang ,&nbsp;M.X. Fang ,&nbsp;Y.L. Yao ,&nbsp;X. Zheng ,&nbsp;X.Y. Liu ,&nbsp;L. Jiang","doi":"10.1016/j.ccst.2025.100393","DOIUrl":"10.1016/j.ccst.2025.100393","url":null,"abstract":"<div><div>The application of heat pumps in carbon capture systems is crucial for post-combustion carbon capture in power plants. However, existing heat pump and carbon capture coupling schemes face issues such as excessive electricity consumption or low waste heat recovery efficiency. Therefore, energy-saving processes are equally indispensable for reducing the energy consumption of carbon capture. A novel cascade heat pump, that is composed of absorption heat pump and lean vapor recompression, is initially proposed for amine-scrubbing capture system. Based on different waste heat utilization and heat pumps, various energy-saving processes are evaluated based on an absorption carbon capture system for a 660 MW coal-fired power plant. The results indicate that the cascade heat pump type is conducive to reducing energy consumption, while the single-stage type results in lower power efficiency loss. At a 90 % carbon recovery rate, the optimal unit energy consumption of the capture system is 2.23 GJ/t_CO2, which is achieved by cascade heat pump coupling with additional steam extraction for generator at flash pressure of 40 kPa. The minimum efficiency loss of power plant is 7.5 % by using lean vapor recompression with waste heat utilization in reboiler and flash drum at flash pressure of 80 kPa and 100 kPa. The maximum net CO₂ recovery rate of 73.48 % is achieved by using lean vapor recompression with waste heat utilization in reboiler and flash drum at flash pressure of 80 kPa. The comparative results pose a great potential considering the cascade heat pump for power plant in the future.</div></div>","PeriodicalId":9387,"journal":{"name":"Carbon Capture Science & Technology","volume":"15 ","pages":"Article 100393"},"PeriodicalIF":0.0,"publicationDate":"2025-02-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143562621","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Mechanistic insights on ionic liquid and poly(ionic liquid) solutions for CO2 capture and cycloaddition reactions","authors":"Raquel V. Barrulas ,&nbsp;Rodrigo M. Barão ,&nbsp;Carlos E.S. Bernardes ,&nbsp;Marcileia Zanatta ,&nbsp;Marta C. Corvo","doi":"10.1016/j.ccst.2025.100390","DOIUrl":"10.1016/j.ccst.2025.100390","url":null,"abstract":"<div><div>This study explores the potential of ionic liquids (ILs) and poly(ionic liquid)s (PILs) for CO₂ capture and conversion. Using molecular dynamics simulations in DMSO solutions, we found that ILs and PILs exhibit similar CO₂ sorption, with the ILs [BMIM][OAc] and [P_4,4,4,4][OAc] showing the highest capacities. Bromide-derived PILs enhance aqueous sorption through cage formation, unlike ILs. We also examined the catalytic efficiency of PILs P[VBA]Cl and P[VBP]Cl, and IL [BA]Cl in CO₂ cycloaddition reactions. DMSO decreases IL catalytic activity but improves P[VBA]Cl's performance. These findings suggest that higher CO₂ sorption in ILs does not always correlate with better catalytic results. In conclusion, IL and PIL solutions in DMSO demonstrate significant potential for the effective modulation of material properties.</div></div>","PeriodicalId":9387,"journal":{"name":"Carbon Capture Science & Technology","volume":"15 ","pages":"Article 100390"},"PeriodicalIF":0.0,"publicationDate":"2025-02-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143552766","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"How do CaO/CuO materials evolve in integrated calcium and chemical looping cycles?","authors":"Yaoyao Zheng ,&nbsp;Stuart A. Scott","doi":"10.1016/j.ccst.2025.100389","DOIUrl":"10.1016/j.ccst.2025.100389","url":null,"abstract":"<div><div>Maintaining high CO₂ uptake is critical for combined Ca-Cu looping applications, however, the long-term behaviour of combined Ca and Cu materials under repeated cycling conditions remains less understood. This study examined three materials with a fixed Cu/Ca mole ratio of 1.6 to analyse the material phase evolution and identify factors influencing CO₂ uptake. The materials underwent 50 TGA cycles in two distinct looping applications: blast furnace gas (BFG) cycling (reduction-carbonation-oxidation) and flue gas cycling (carbonation-reduction-oxidation).</div><div>Different preparation methods significantly affected the initial phase distribution. The multi-grain precipitate material (MGP), prepared to minimise the chemical contact between Ca and Cu, primarily contained separate CaO and CuO phases; while the multi-stage mechanically mixed materials (MM1 and MM2), in which there was extensive contact between the Ca and Cu, exhibited mixed Ca-Cu-O phases along with separate CuO. However, the initial phase distribution had little influence on the longer-term CO₂ uptake with the accessibility of CaO and cycling conditions having a more significant impact. BFG cycling consistently resulted 70–100; % greater CO₂ uptake than flue gas cycling, highlighting the strong influence of cycling conditions.</div></div>","PeriodicalId":9387,"journal":{"name":"Carbon Capture Science & Technology","volume":"15 ","pages":"Article 100389"},"PeriodicalIF":0.0,"publicationDate":"2025-02-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143474899","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Recent advances and challenges in solid sorbents for CO2 capture","authors":"Hamid Zentou ,&nbsp;Bosirul Hoque ,&nbsp;Mahmoud A. Abdalla ,&nbsp;Ahmed F. Saber ,&nbsp;Omar Y. Abdelaziz ,&nbsp;Mansur Aliyu ,&nbsp;Abdullah M. Alkhedhair ,&nbsp;Abdullah J. Alabduly ,&nbsp;Mahmoud M. Abdelnaby","doi":"10.1016/j.ccst.2025.100386","DOIUrl":"10.1016/j.ccst.2025.100386","url":null,"abstract":"<div><div>Carbon capture is still a crucial technology for lowering CO₂ emissions, especially since fossil fuels persist in supplying a considerable share of global energy needs. Among different capture techniques, solid sorbents like activated carbon, zeolites, metal-organic frameworks (MOFs), and porous organic polymers (POPs) are becoming prominent due to their excellent adsorption effectiveness, durability, and ease of operation. These substances present hopeful substitutes for traditional liquid amine scrubbing by addressing problems like energy-heavy regeneration, corrosion, and elevated solvent expenses. Nonetheless, major obstacles concerning scalability, cost efficiency, and energy demands for regeneration have impeded the broad industrial implementation of adsorption-based carbon capture. This review offers an extensive assessment of recent progress in solid sorbent technology, outlining the enhancement of material characteristics, functionalization methods, and synthesis processes that improve CO₂ capture efficiency. Furthermore, the document highlights the significance of thermodynamic stability, sorbent selectivity, and impurity tolerance to enhance adsorption efficiency in various operating conditions. This review seeks to offer a framework for tackling the technical and economic difficulties linked to these materials through a mix of experimental techniques, and techno-economic assessments. In conclusion, the knowledge acquired in this context aims to guide the creation and implementation of scalable, energy-efficient adsorption-based carbon capture technologies, facilitating their successful application in industrial settings and aiding worldwide CO₂ mitigation initiatives.</div></div>","PeriodicalId":9387,"journal":{"name":"Carbon Capture Science & Technology","volume":"15 ","pages":"Article 100386"},"PeriodicalIF":0.0,"publicationDate":"2025-02-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143454485","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Towards net-zero in steel production: Process simulation and environmental impacts of carbon capture, storage and utilisation of blast furnace gas","authors":"Harish K. Jeswani ,&nbsp;Santiago Zapata-Boada ,&nbsp;Vincenzo Spallina ,&nbsp;Adisa Azapagic","doi":"10.1016/j.ccst.2025.100387","DOIUrl":"10.1016/j.ccst.2025.100387","url":null,"abstract":"<div><div>Blast furnace gas (BFG), the main off-gas product of primary steel production, significantly contributes to the overall CO₂ emissions from primary steel production. Various decarbonisation strategies are currently being explored to mitigate these emissions. This paper combines process simulation with life cycle assessment to estimate the environmental impacts of different BFG decarbonisation scenarios involving carbon capture and utilisation (CCU) and carbon capture and storage (CCS). For CCU scenarios, a novel approach is considered that valorises BFG into transport fuels, utilising chemical looping with reverse water-gas shift reaction (CL-RWGS) followed by the Fischer-Tropsch process. For CCS, two pre-combustion capture processes are evaluated. The results indicate that the CCU-based scenarios can reduce the climate change impact of steel production by 11–45 %, while the CCS scenarios can achieve reductions of 17–34 %. However, these reductions come with significant increases in other environmental impacts. In the CCU-based scenarios, freshwater consumption, land use, human toxicity, terrestrial ecotoxicity, ionising radiation, and ozone depletion impacts increase by 60 % to as much as 60 times, primarily due to the large quantities of hydrogen required for the CL-RWGS process. Similarly, the energy penalties associated with the CCS process also increase other impacts, though the increases are less pronounced than in the CCU scenarios. Given that the CL-RWGS-based CCU technologies are still in early development stages, further research should focus on improving both the CCU process and hydrogen production methods.</div></div>","PeriodicalId":9387,"journal":{"name":"Carbon Capture Science & Technology","volume":"15 ","pages":"Article 100387"},"PeriodicalIF":0.0,"publicationDate":"2025-02-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143508940","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}