Carbon Capture Science & Technology最新文献

{"title":"Developing non-aqueous slurry for CO2 capture","authors":"Sahar Foorginezhad,&nbsp;Xiaoyan Ji","doi":"10.1016/j.ccst.2025.100385","DOIUrl":"10.1016/j.ccst.2025.100385","url":null,"abstract":"<div><div>The urgency of mitigating CO₂ emissions has become increasingly critical due to their detrimental effects on environmental sustainability and human health. Among emerging solutions, deep eutectic solvents (DESs) have garnered attention for their high CO₂ capture capacities. However, widespread application of DESs has been constrained by their inherent high viscosity and cost. To overcome these limitations, this study further explores the novel strategy, where cosolvent addition and immobilization are combined to develop a non-aqueous slurry for CO₂ capture with high efficiency. Here, [MEACl][EDA] with (1:5) molar ratio is mixed with ethylene glycol (EG) to form a non-aqueous DES solution, and the DES is further immobilized into the mesoporous silica to form a composite and then mixed with the DES-EG solution to make a slurry. The CO₂ capture tests demonstrated 15 wt.% capture capacity at 22 °C and 1 bar, and efficient sorption and desorption rates (0.34 and 0.38 mol CO₂/(kg sorbent·min) within the initial 2 min). The slurry also exhibited promising cyclic performance with 96.4 % recovery together with minimal solvent loss of 0.97 % and almost intact structure after 120 hr of heating at 110 °C. The improved capture capacity and kinetics, especially for desorption, as well as enhanced thermal stability of the non-aqueous system highlight its potential for industrial applications.</div></div>","PeriodicalId":9387,"journal":{"name":"Carbon Capture Science & Technology","volume":"15 ","pages":"Article 100385"},"PeriodicalIF":0.0,"publicationDate":"2025-02-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143376987","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":"CO2 capture performance and foaming mechanism of modified amine-based absorbents: A study based on molecular dynamics","authors":"Yucong Ge ,&nbsp;Zeyu Wang ,&nbsp;Li Yang ,&nbsp;Xunxuan Heng ,&nbsp;Zhenzhen Zhang ,&nbsp;Yi Wang ,&nbsp;Fang Liu ,&nbsp;Xiao Yang ,&nbsp;Bo Liu ,&nbsp;Kunlei Liu","doi":"10.1016/j.ccst.2025.100384","DOIUrl":"10.1016/j.ccst.2025.100384","url":null,"abstract":"<div><div>Efficient and sustainable CO₂ capture technologies are key to addressing global climate change; however, existing amine-based absorbents still have limitations in terms of reaction efficiency and energy consumption. This study investigates the modification of amine-based absorbents, including monoethanolamine (MEA), diethanolamine (DEA), and N-methyldiethanolamine (MDEA), using the surfactant Fatty Alcohol Polyoxyethylene Ether-9 (AEO-9). The CO₂ capture performance, product accumulation, and molecular interaction mechanisms were systematically examined. The results show that the inclusion of AEO-9 reduces the surface tension of the absorbent by 41.4 %–49.1 %, enhancing the foaming properties and improving CO₂ removal efficiency by 22.3 %–41.5 %. Additionally, the absorption performance of some rate-amine blends after foaming is better than pure MEA, suggesting their potential to reduce energy consumption and mitigate equipment corrosion. ¹³C NMR and FTIR characterization confirmed the formation and accumulation of reaction products. Molecular dynamics simulations further revealed that the surfactant enhances molecular cooperation by optimizing the density and dynamic characteristics of the solvation shell. Meanwhile, the modified system showed increased hydrogen bond length and bond angle, weakening network rigidity and improving intermolecular mobility. This study demonstrates the potential of foaming absorbents in CO₂ capture and introduces a novel approach to enhancing absorbent performance through interfacial regulation and microstructural optimization, providing important theoretical and practical insights for the development of efficient, low-energy carbon capture technologies.</div></div>","PeriodicalId":9387,"journal":{"name":"Carbon Capture Science & Technology","volume":"15 ","pages":"Article 100384"},"PeriodicalIF":0.0,"publicationDate":"2025-02-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143349240","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":"Sulfur-vulcanized CoFe2O4 with high-efficiency photo-to-thermal conversion for enhanced CO2 reduction and mechanistic insights into selectivity","authors":"Xiaoke Chen ,&nbsp;Ming Cai ,&nbsp;Pengwei Huo ,&nbsp;Yan Yan ,&nbsp;Yue Zhang ,&nbsp;Pengxin Li ,&nbsp;Zhi Zhu","doi":"10.1016/j.ccst.2025.100377","DOIUrl":"10.1016/j.ccst.2025.100377","url":null,"abstract":"<div><div>Semiconductor photocatalysts often exhibit low CO₂ reduction activity due to inherent limitations. Photothermal (PTT) processes have emerged as crucial for enhancing this activity, yet investigations in this area remain sparse. This study introduces a novel CoFe₂O_3.5S_0.5 photothermal catalyst, synthesized via hydrothermal methods with particle sizes ranging from 5 to 10 nm. Comparative analysis reveals that the CO yield from the as-prepared catalyst surpasses that of CoFe₂O₄ by 8.9 times, achieving 100% selectivity. The integration of sulfur significantly boosts near-infrared light absorption and promotes the conversion of light to thermal energy, enabling the catalyst to reach 185 °C within 300 ss. This rapid temperature escalation facilitates the swift separation of charge carriers. Additionally, the adsorption of CO₂ and the dynamics of surface intermediates were thoroughly examined using <em>in situ</em> FTIR spectroscopy and theoretical models, identifying COOH* as the pivotal intermediate and the bottleneck in the reaction pathway. Our findings rectify gaps in prior studies and offer a foundational reference for further exploration of product selectivity in the photocatalytic reduction of CO₂.</div></div>","PeriodicalId":9387,"journal":{"name":"Carbon Capture Science & Technology","volume":"14 ","pages":"Article 100377"},"PeriodicalIF":0.0,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143378096","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":"Technical, economic and lifecycle greenhouse gas emissions analyses of solid sorbent direct air capture technologies","authors":"Sylvanus Lilonfe ,&nbsp;Sarah Rodgers ,&nbsp;Amir F.N. Abdul-Manan ,&nbsp;Ioanna Dimitriou ,&nbsp;Jon McKechnie","doi":"10.1016/j.ccst.2025.100380","DOIUrl":"10.1016/j.ccst.2025.100380","url":null,"abstract":"<div><div>Achieving net zero emissions by 2050 will require the development of cost-effective and CO₂-efficient direct air capture (DAC) technology to remove atmospheric CO₂. This study presents a comprehensive assessment of five solid sorbents under different technology scenarios to determine the design, operations, cost and greenhouse gas (GHG) emissions of DAC technologies. The cost and GHG emissions of the five solid sorbents ranged from $₂₀₂₄1,200–40,400/t sorbent and 3.1–12.3 tCO₂e/t sorbent in 2024, respectively, mainly driven by the raw materials used for sorbent manufacture. Cost estimates for the best capture technologies ranged from $₂₀₂₄97–168/gross tCO₂ captured [$₂₀₂₄126–170/net tCO₂ captured] in 2025 and can be further reduced to $₂₀₂₄87–140/gross tCO₂ captured [$₂₀₂₄93–142/net tCO₂ captured] in 2050. The costs of DAC are heavily influenced by: (i) economic factors (i.e. capital expenses and energy costs), (ii) design elements (i.e. plant scale) and (iii) technical parameters (i.e. sorbent's adsorption rate and time). Conversely, the GHG emissions of DAC are mostly determined by the source of energy. Price signals in existing carbon markets are inadequate to support a DAC project, but a forecasted carbon price increase to $140–240/tCO₂ by 2030–2050 could make DAC commercially viable.</div></div>","PeriodicalId":9387,"journal":{"name":"Carbon Capture Science & Technology","volume":"15 ","pages":"Article 100380"},"PeriodicalIF":0.0,"publicationDate":"2025-01-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143349743","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":"Research on the effect of selective adsorption of CO2 by C@Fe3O4 for H2 purification","authors":"Longlong Lei ,&nbsp;Hang Yuan ,&nbsp;Hongguang Zhu ,&nbsp;Jie Ma ,&nbsp;Fanghui Pan ,&nbsp;Fulu Lu","doi":"10.1016/j.ccst.2025.100383","DOIUrl":"10.1016/j.ccst.2025.100383","url":null,"abstract":"<div><div>In the context of global efforts to address climate change, capturing and storing CO₂, as well as developing hydrogen energy, have emerged as widely recognized effective methods for reducing greenhouse gas emissions. In particular, the process of hydrogen production through the gasification and reforming of organic fuels necessitates the separation and purification of H₂ from CO₂. Although various technological pathways have been proposed in this research field, issues such as low separation efficiency, high energy consumption, and high costs are prevalent to varying degrees across these different methods. This study is based on reports of the strong interaction between ferric oxide (Fe₃O₄) and CO₂, as well as the magnetic exclusion of hydrogen gas. This study hypothesize carbon-coated magnetite (C@Fe₃O₄) as a material with selective adsorption of CO₂, enabling efficient separation of H₂ and CO₂. To test this hypothesis, this study synthesized C@Fe₃O₄ and conducted isothermal adsorption tests to determine the adsorption curves for H₂ and CO₂, along with calculations for adsorption selectivity. The results indicated that C@Fe₃O₄ exhibited good selectivity for CO₂ over H₂ under ambient conditions. Penetration experiments further confirmed that the separation ratio for H₂ and CO₂ reached as high as 13.6. Comparative experiments with porous carbon materials lacking the Fe₃O₄ core, along with characterization analyses of C@Fe₃O₄, validated the dual mechanism at play: the strong adsorption of CO₂ by the Fe₃O₄ core and the magnetic exclusion of hydrogen. The carbon coating did not inhibit the strong adsorption of CO₂ by Fe₃O₄ but also provided a barrier that prevented direct contact between H₂ and Fe₃O₄, mitigating any potential reduction reactions that could lead to magnetic decay. Moreover, the petal-like carbon-coated structure increased the volumetric CO₂ adsorption capacity of the material. Although the high density of the Fe₃O₄ crystalline core resulted in modest mass adsorption capacity, the unique layered carbon structure enhanced the specific surface area. This dual effect led to a volumetric CO₂ adsorption capacity of 1.32 mmol/cm³, surpassing that of most existing porous carbon materials, and the CO₂/H₂ adsorption ratio also exceeded that of many carbon materials.</div></div>","PeriodicalId":9387,"journal":{"name":"Carbon Capture Science & Technology","volume":"15 ","pages":"Article 100383"},"PeriodicalIF":0.0,"publicationDate":"2025-01-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143387815","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":"Machine learning-assisted development of gas separation membranes: A review","authors":"An Li,&nbsp;Jianchun Chu,&nbsp;Shaoxuan Huang,&nbsp;Yongqi Liu,&nbsp;Maogang He,&nbsp;Xiangyang Liu","doi":"10.1016/j.ccst.2025.100374","DOIUrl":"10.1016/j.ccst.2025.100374","url":null,"abstract":"<div><div>Gas separation membranes have been a hot topic of research in recent decades due to their low costs, high energy efficiency and wide range of applications. Machine learning provide a fast way to design gas separation membranes with required performance. This review systematically describes the process of machine learning-assisted gas separation membrane development. In addition, the experimental data on CO₂/CH₄, CO₂/N₂ and O₂/N₂ separation performance were summarized to provide basis for future work on machine learning-assisted design of gas separation membrane for carbon dioxide capture, and natural gas purification as well as oxygen or nitrogen enrichment. Moreover, we discuss the classical materials that make up gas separation membranes, including MOFs, polymers and COFs, and analyze the strengths and weaknesses of the different materials. Finally, we discuss the challenges in the development of machine learning method for next-generation gas separation membranes.</div></div>","PeriodicalId":9387,"journal":{"name":"Carbon Capture Science & Technology","volume":"14 ","pages":"Article 100374"},"PeriodicalIF":0.0,"publicationDate":"2025-01-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143100121","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":"Modulation strategy and effect of metal-support interaction over catalysts for carbon dioxide methanation","authors":"Shuaishuai Lyu ,&nbsp;Dejian Zhao ,&nbsp;Hao Zhang ,&nbsp;Hongwei Li ,&nbsp;Fuli Wen ,&nbsp;Qiuming Zhou ,&nbsp;Rongjun Zhang ,&nbsp;Yu Wu ,&nbsp;Chaopeng Hou ,&nbsp;Guofu Xia ,&nbsp;Run Xu ,&nbsp;Xingang Li","doi":"10.1016/j.ccst.2025.100381","DOIUrl":"10.1016/j.ccst.2025.100381","url":null,"abstract":"<div><div>Carbon dioxide (CO₂) methanation is an essential technology for addressing global challenges such as sustainable energy storage, space exploration, and the reduction of CO₂ emission. This technology has attracted broad attention in recent years. To really implement the CO₂ methanation process, it is crucial to design stable and highly effective catalysts. The activity and selectivity of heterogeneous catalysts can be efficiently tuned by controlling the metal-support interaction, and this strategy has been widely used in the catalyst design for CO₂ methanation. In fact, the catalytic activity can be enhanced by up to ∼25 times in a CO₂ methanation catalyst due to metal-support interaction. In this review, we summarize the recent progress on metal-support interaction in heterogeneous catalysts for CO₂ methanation. At first, we will systemically discuss the effect of metal-support interaction in CO₂ methanation catalysts, followed by a detailed introduction to its modulation strategy. Through quantitative analysis, we will point out changing chemical composition of catalyst support is the most efficient method to enhance the catalytic performance, and the primary goal of catalyst design is the modulation of electron transfer between metal particles and the support. We will also sketch the potential research direction of this promising field.</div></div>","PeriodicalId":9387,"journal":{"name":"Carbon Capture Science & Technology","volume":"14 ","pages":"Article 100381"},"PeriodicalIF":0.0,"publicationDate":"2025-01-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143156855","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":"Pyrolysis-catalytic gasification of plastic waste for hydrogen-rich syngas production with hybrid-functional Ni-CaOCa2SiO4 catalyst","authors":"Tian Heng Qin ,&nbsp;Guozhao Ji ,&nbsp;Boyu Qu ,&nbsp;Alan J McCue ,&nbsp;Shaoliang Guan ,&nbsp;Jos Derksen ,&nbsp;Ye Shui Zhang","doi":"10.1016/j.ccst.2025.100382","DOIUrl":"10.1016/j.ccst.2025.100382","url":null,"abstract":"<div><div>The production of H₂-rich syngas from pyrolysis-catalytic gasification of plastic waste bottles has been investigated. The hybrid-functional materials consisting of Ni as catalyst, CaO as CO₂ sorbent and Ca₂SiO₄ as a polymorphic active spacer were synthesized. The different parameters (Ni loading, temperature, N₂ flow rate and feedstock-to-catalyst ratio) have been investigated to optimise the H₂ production. The catalysts were analysed by N₂ physisorption, scanning electron microscopy (SEM), energy dispersive spectroscopy (EDS), X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS), Temperature-programmed reduction (TPR) and <em>in-situ</em> Transmission Electron Microscopy (TEM). Temperature-programmed oxidation (TPO) was used to analyse the carbon formation on the used catalysts. The highest H₂ production of 59.15 mmol g^-1_{of plastic} was obtained in the presence of a catalyst with 20 wt.% Ni loading, which amounts to H₂ purity as high as 54.2 vol% in gas production. Furthermore, 90.63 mmol g^-1_{of plastic} of syngas was produced by increasing the feedstock-to-catalyst ratio to 4:1, yielding 84.4 vol.% of total gas product (53.1 vol.% of H₂ and 31.3 vol.% of CO, respectively). The Ni-CaO<img>Ca₂SiO₄ hybrid-functional material is a very promising catalyst in the pyrolysis-catalytic gasification process by capturing CO₂ as it is produced, therefore shifting the water gas shift (WGS) reaction to enhance H₂ production from plastic waste. Detailed elucidation of the roles of each component at the microscale during the catalytic process was also provided through <em>in-situ</em> TEM analysis. The finding could guide the industry for future large-scale application to convert abundant plastic waste into H₂-rich syngas, therefore contributing to the global ‘net zero’ ambition.</div></div>","PeriodicalId":9387,"journal":{"name":"Carbon Capture Science & Technology","volume":"14 ","pages":"Article 100382"},"PeriodicalIF":0.0,"publicationDate":"2025-01-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143156853","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":"Carbon-resistant bifunctional catalyst composed of LaFeO3 enhanced Ni-CaO for integrated CO2 capture and conversion","authors":"Hengyu Wei ,&nbsp;Min Lin ,&nbsp;Juping Zhang ,&nbsp;Di Gao ,&nbsp;Yuhao Chen ,&nbsp;Liang Zhang ,&nbsp;Xing Zhu","doi":"10.1016/j.ccst.2024.100358","DOIUrl":"10.1016/j.ccst.2024.100358","url":null,"abstract":"<div><div>Coupled calcium cycling and dry reforming of methane (CaL-DRM) process has garnered significant attention in recent years as a promising technique for the CO₂ capture and <em>in-situ</em> conversion. However, traditional Ni-CaO catalysts with substantial CaL-DRM activity are susceptible to severe carbon deposition, which greatly hinders their industrial application. A combination of sol-gel and impregnation methods to include LaFeO₃ into Ni-CaO to enhance CO₂ capture and conversion is utilized. The characterization results indicate that the incorporation of LaFeO₃ significantly improves the dispersion of Ni and CaO, increases the concentration of oxygen vacancies, effectively suppresses the sintering and carbon deposition, and improves the cycling stability of Ni-CaO. In addition, LaFeO₃ promotes the outward diffusion of lattice oxygen, thereby facilitating CO₂ capture and CH₄ conversion to syngas. At 700 ℃, up to 86.5 % CO₂ conversion, 87.6 % CO selectivity, and syngas yield close to the theoretical value of 1.0 were achieved over 5Ni-30CaO-LFO (30 wt% CaO). More importantly, the activity of catalyst remains almost unchanged after 30 cycles. This study introduces an innovative approach for CaL-DRM, showing significant potential for effective and stable CO₂ capture and <em>in-situ</em> conversion.</div></div>","PeriodicalId":9387,"journal":{"name":"Carbon Capture Science & Technology","volume":"14 ","pages":"Article 100358"},"PeriodicalIF":0.0,"publicationDate":"2025-01-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143157456","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":"Decarbonizing Saudi Arabia energy and industrial sectors: Assessment of carbon capture cost","authors":"Feras Rowaihy ,&nbsp;Ali Hamieh ,&nbsp;Naser Odeh ,&nbsp;Mohamad Hejazi ,&nbsp;Mohammed Al-Juaied ,&nbsp;Abdulkader M. Afifi ,&nbsp;Hussein Hoteit","doi":"10.1016/j.ccst.2025.100375","DOIUrl":"10.1016/j.ccst.2025.100375","url":null,"abstract":"<div><div>The global drive for net-zero emissions has highlighted carbon capture, utilization, and storage (CCUS) as a critical tool to reduce CO₂ emissions from energy and industrial sectors. Achieving climate goals necessitates a comprehensive understanding of regional CO₂ emission profiles and capture costs to inform effective decarbonization strategies. As one of the largest CO₂ emitters globally, Saudi Arabia has committed to achieving net-zero emissions by 2060. However, the economic implications of deploying CCUS within the Kingdom remain insufficiently explored. This work provides updated estimates of CO₂ emissions across key sectors in Saudi Arabia, including electricity, petrochemicals, refineries, cement, steel, ammonia production, and desalination, based on 2022 data. The CO₂ capture costs are estimated by incorporating stationary emission plant data with reference cases from analogous industrial sectors, including capital expenditure (CAPEX) and operating expenditure (OPEX). The total capture cost per ton of CO₂ is determined by combining these cost components using an established economic model and a custom-developed tool. The study constructs a comprehensive CO₂ capture cost curve for Saudi Arabia, highlighting the variability of capture costs across regions and industries. Our analysis indicates an average CO₂ capture cost of $69/tCO₂, with substantial variability across industries. Ammonia production emerges as the most cost-efficient at $11/tCO₂, driven by its high CO₂ concentration, whereas smaller-scale operations can incur costs up to $189/tCO₂. Results show that economies of scale and CO₂ concentration play pivotal roles in determining capture feasibility, with low-cost opportunities identified in ammonia production and high-emission industrial clusters, particularly in the Eastern and Western regions. The Eastern region, with its planned CCS hub in Jubail, emerges as the most promising for near-term deployment. In contrast, the Western region requires additional focus on storage alternatives such as mineralization. Benchmarking against global capture costs reveals that Saudi Arabia's industrial landscape, characterized by large-scale emitters, is well-positioned for cost-effective CCUS implementation. The study highlights the need to prioritize low-cost capture opportunities and develop strategies tailored to regional and sector-specific conditions, offering a roadmap for the Kingdom's significant contribution to global net-zero ambitions.</div></div>","PeriodicalId":9387,"journal":{"name":"Carbon Capture Science & Technology","volume":"14 ","pages":"Article 100375"},"PeriodicalIF":0.0,"publicationDate":"2025-01-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143157457","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}