Carbon Capture Science & Technology最新文献

{"title":"Biobased ionic liquid solutions for an efficient post-combustion CO2 capture system","authors":"Salvatore F. Cannone ,&nbsp;Michel Tawil ,&nbsp;Sergio Bocchini ,&nbsp;Massimo Santarelli","doi":"10.1016/j.ccst.2024.100312","DOIUrl":"10.1016/j.ccst.2024.100312","url":null,"abstract":"<div><div>This study explores the use of ionic liquids (ILs) as a novel and efficient alternative to conventional monoethanolamine (MEA) for CO₂ capture. While MEA scrubbing is well-known for carbon sequestration, it faces limitations such as high energy consumption, toxicity, and rapid degradation. In contrast, ILs offer advantages such as non-volatility, stability, and reduced corrosiveness. We focus on a biodegradable IL comprising choline ([Cho]) and proline ([Pro]) amino acids to create an eco-friendly solution. Dimethyl sulfoxide (DMSO) is introduced as a diluent to mitigate viscosity issues during CO₂ uptake. Our research measures the thermo-physical properties, including density and viscosity of [Cho][Pro] in DMSO at different concentrations. The addition of DMSO resulted in a viscosity reduction of &gt;97 % at a temperature of 303 K for the three virgin solutions compared to the pure IL. In addition, the CO₂ capture performance was evaluated using a system of absorption and desorption reactors. The results show that the 25 % wt [Cho][Pro] solution excels, achieving over 90 % CO₂ absorption, 0.66 <span><math><mrow><mi>m</mi><mi>o</mi><msub><mi>l</mi><mrow><mi>C</mi><msub><mi>O</mi><mn>2</mn></msub></mrow></msub><mo>/</mo><mi>m</mi><mi>o</mi><msub><mi>l</mi><mrow><mi>I</mi><mi>L</mi></mrow></msub></mrow></math></span> in the first cycle, and demonstrating high reusability and regeneration efficiency over multiple cycles. Comparisons indicate that the IL solution outperforms traditional aqueous MEA solutions. Longer term testing confirms the solution's stability and minimal degradation, achieving a regeneration efficiency of &gt;55 % over 30 cycles, suggesting the potential of [Cho][Pro] for sustainable long-term CO₂ capture applications.</div></div>","PeriodicalId":9387,"journal":{"name":"Carbon Capture Science & Technology","volume":"13 ","pages":"Article 100312"},"PeriodicalIF":0.0,"publicationDate":"2024-09-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142358076","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":"System design of a novel open-air brayton cycle integrating direct air capture","authors":"Seongmin Son","doi":"10.1016/j.ccst.2024.100311","DOIUrl":"10.1016/j.ccst.2024.100311","url":null,"abstract":"<div><div>The Direct Air Capture (DAC) technology is essential for achieving carbon neutrality, as it enables processes with net-negative CO₂ emissions. However, its widespread commercialization faces significant challenges due to high energy requirements. Numerous attempts have been made to address this issue through thermal integration, yet the fundamental challenge of the high cost associated with extracting large volumes of low-concentration CO₂ from ambient air remains unresolved. In this study, the integration of Open-Air Brayton Cycle (OABC) as a solution to enhance overall system utilization by simultaneously utilizing large volumes of ambient air is introduced. Various OABC coupled temperature swing adsorption based DAC system layouts are analyzed while considering different regeneration temperatures, and the results revealed the optimal configurations that significantly reduce energy cost per captured unit of CO₂ with high purity and recovery. By combining an equilibrium short-cut model for temperature swing adsorption with process simulation methodologies, this research proposes the concept of “energy cost”—a metric that represents the amount of CO₂ captured against the energy penalty incurred by integrating DAC with OABC systems. The findings demonstrate that combining DAC and OABC systems could yield high purity and recovery rates of CO₂ through strategic thermal management and advanced adsorbent usage, offering a synergistic approach to carbon capture from an energy consumption perspective.</div></div>","PeriodicalId":9387,"journal":{"name":"Carbon Capture Science & Technology","volume":"13 ","pages":"Article 100311"},"PeriodicalIF":0.0,"publicationDate":"2024-09-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142326856","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":"Hydrothermal-calcination synthesis of lithium orthosilicate microspheres for high-temperature CO2 capture","authors":"Xicheng Wang ,&nbsp;Wentao Xia ,&nbsp;Xianda Sun ,&nbsp;Yuandong Yang ,&nbsp;Xiaohan Ren ,&nbsp;Yingjie Li","doi":"10.1016/j.ccst.2024.100303","DOIUrl":"10.1016/j.ccst.2024.100303","url":null,"abstract":"<div><div>In recent years, the Li₄SiO₄ adsorbent has become a promising candidate for high-temperature CO₂ capture. The fabrication of micro-structured Li₄SiO₄ could enhance the capture performance effectively. However, there exists a conflict between the purity and the morphology of prepared micro-structured Li₄SiO₄. This study proposed a novel hydrothermal-calcination method, which could produce Li₄SiO₄ microspheres with great morphology and relatively high purity. The physicochemical properties, CO₂ capture performance and forming mechanisms of Li₄SiO₄ microspheres are evaluated and investigated systematically. It is found that the hydrothermal process could fabricate micro-spherical LiOH@Li₂SiO₃ precursor, which was further converted to Li₄SiO₄ microspheres during the subsequent calcination process. The LiOH@Li₂SiO₃ precursor could not only maintain the microstructure but also reduce the Li₄SiO₄ generation temperature, thus improving the morphology as well as the purity of obtained Li₄SiO₄ microspheres. As a result, the adsorbents could reach a CO₂ capture capacity of 0.167–0.222 g/g within 30 min's adsorption under 15 vol.% CO₂, and their cyclic stability are diverse depending on the used calcination temperatures. The hydrothermal-calcination contributes to the future preparation of high-performance Li₄SiO₄-based CO₂ adsorbents.</div></div>","PeriodicalId":9387,"journal":{"name":"Carbon Capture Science & Technology","volume":"13 ","pages":"Article 100303"},"PeriodicalIF":0.0,"publicationDate":"2024-09-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142326851","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":"Eliminating insoluble products and enhancing reversible CO2 capture of a tetraethylenepentamine-based non-aqueous absorbent: Exploring the synergistic regulation of 2-amino-2-methyl-1-propanol and n-propanol","authors":"Xiaobin Zhou ,&nbsp;Yunqiong Tang ,&nbsp;Chao Liu ,&nbsp;Shengpeng Mo ,&nbsp;Yinming Fan ,&nbsp;Dunqiu Wang ,&nbsp;Bihong Lv ,&nbsp;Yanan Zhang ,&nbsp;Yinian Zhu ,&nbsp;Zongqiang Zhu ,&nbsp;Guohua Jing","doi":"10.1016/j.ccst.2024.100310","DOIUrl":"10.1016/j.ccst.2024.100310","url":null,"abstract":"<div><div>To tackle the prevalent challenges encountered with polyamine-based non-aqueous absorbents (NAAs), particularly the formation of viscous products and inferior regeneration performance, this study proposed an innovative synergistic regulation strategy that integrated 2-amino-2-methyl-1-propanol (AMP) and n-propanol (NPA). Accordingly, a novel tertiary tetraethylenepentamine (TEPA)-AMP-NPA (T-A-N) NAA was devised. The optimized T-A-N maintained complete homogeneity throughout the entire CO₂ absorption process and achieved an impressive CO₂ loading of 1.15 mol·mol⁻¹ while maintaining a low viscosity of merely 22.47 mPa·s. Remarkably, its absorption capacity showed little decrement after four consecutive absorption-desorption cycles, underscoring its exceptional recyclability. Within the T-A-N system, AMP underwent a reaction with CO₂, yielding AMP-carbamate and protonated AMP, while TEPA engaged in CO₂ absorption to form zwitterionic carbamates. During the desorption process, NPA served as a regeneration activator, facilitating the conversion of stable TEPA-carbamates into less stable alkyl carbonate intermediates, thereby enhancing the T-A-N's regeneration performance. Moreover, the T-A-N system addressed the issue of TEPA-carbamate self-aggregation into insoluble gelatinous substances by leveraging the synergistic enhancement effects between AMP derivatives and NPA. Specifically, these components effectively bound TEPA-carbamate species via robust electrostatic affinity and intermolecular hydrogen-bond interactions, inhibiting their self-aggregation and preventing the formation of insoluble products. Furthermore, T-A-N exhibited a significant reduction in both sensible and latent heat requirements, by 67 % and 82 % respectively, compared to 30 wt% MEA, highlighting its advantageous energy-saving potential for CO₂ capture. Overall, harnessing the synergistic enhancement effects of AMP and NPA was conducive to the development of polyamine-based NAAs that offered superior CO₂ capture reversibility, low energy consumption, and resistance to insoluble product formation.</div></div>","PeriodicalId":9387,"journal":{"name":"Carbon Capture Science & Technology","volume":"13 ","pages":"Article 100310"},"PeriodicalIF":0.0,"publicationDate":"2024-09-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142326852","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 capture and sequestration with in-situ CO2 and steam integrated 3D concrete printing","authors":"Sean Gip Lim ,&nbsp;Yi Wei Daniel Tay ,&nbsp;Suvash Chandra Paul ,&nbsp;Junghyun Lee ,&nbsp;Issam T. Amr ,&nbsp;Bandar A. Fadhel ,&nbsp;Aqil Jamal ,&nbsp;Ahmad O. Al-Khowaiter ,&nbsp;Ming Jen Tan","doi":"10.1016/j.ccst.2024.100306","DOIUrl":"10.1016/j.ccst.2024.100306","url":null,"abstract":"<div><div>Profound reliance of the building and construction sector on cement exacerbates its immense carbon footprint, accounting for a substantial portion of worldwide emissions. In this paper, we investigate the possibilities of in-situ carbon capture and sequestration to eliminate spatial constraints from a chamber confined curing solution via CO₂ and steam integrated 3D concrete printing. The presented technology involves a two-step extrusion-based system that sequesters captured CO₂ directly into concrete prior deposition at the nozzle printhead, so as to achieve artificially accelerated carbonation reactions with enhancement of mechanical properties. Accordingly, samples subjected to in-situ CO₂ and steam integration showed increases of up to 50.0 % 3D printability, 36.8 % compressive strength, and 45.3 % flexural strength compared to control at its respective curing conditions. The results of said approach demonstrated 38.2 % increase in bulk carbon uptake compared to accelerated carbonation confined curing methods, offering an alternative pathway towards decarbonized construction with 3DCP.</div></div>","PeriodicalId":9387,"journal":{"name":"Carbon Capture Science & Technology","volume":"13 ","pages":"Article 100306"},"PeriodicalIF":0.0,"publicationDate":"2024-09-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142326853","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 self-consistent design method of the autothermal dual circulating fluidized bed reactor for in-situ gasification chemical looping combustion of coal","authors":"Xi Chen,&nbsp;Haibo Zhao","doi":"10.1016/j.ccst.2024.100292","DOIUrl":"10.1016/j.ccst.2024.100292","url":null,"abstract":"<div><div>This paper establishes a design method for the autothermal dual circulating fluidized bed reactor (DCFBR) of the coal-fueled <em>in-situ</em> gasification chemical looping combustion (<em>i</em>G-CLC) process. This method, grounded in a self-consistent phenomenological model, comprehensively elucidates the factors of mass and energy conservation, fuel and oxygen carrier (OC) reaction processes, and fluidization characteristics within the reactor. It is particularly suitable for the rapid screening of numerous potential designs, obtaining detailed design parameters, and studying their interrelationships. Utilizing this method, the regulation patterns of dual-bed interactive transport-reaction phenomena within a 5 MW_th <em>i</em>G-CLC DCFBR are studied. Firstly, the effects of key design parameters on the OC circulation rate and bed inventory are analyzed. Following this, the impacts of circulation rate on the interactive heat and mass transfer between two beds are examined, delineating a reasonable range for the control of autothermal CLC process (circulation rate of 50–90 kg/m²s, temperature difference of 30–90 °C, OC conversion of 0.2–0.35, and oxygen-fuel ratio of 3–6). Subsequently, this paper investigates the influences of main design parameters on the performance metrics, such as gas/solid fuel conversion, operational costs, and operational benefits. It is found that the carbon stripper significantly enhances the carbon capture efficiency of the device, provided that its separation efficiency is maintained above 70–95 %. Sensitivity analysis is employed to study the response patterns of performance metrics to changes in input parameters. Ultimately, based on these analyses, a design scheme for the 5 MW_th reactor is determined, with a detailed examination of the pressure balance state of the reactor under the design conditions, and the balanced material and energy flows at the reactor inlets and outlets.</div></div>","PeriodicalId":9387,"journal":{"name":"Carbon Capture Science & Technology","volume":"13 ","pages":"Article 100292"},"PeriodicalIF":0.0,"publicationDate":"2024-09-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142326850","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":"Enabling simultaneous CO2 and water vapor removal by MOF-801/Pebax mixed matrix membranes: Molecular simulation and experimental study","authors":"Mahdi Ahmadi ,&nbsp;Saravanan Janakiram ,&nbsp;Sadiye Velioğlu ,&nbsp;Arne Lindbråthen ,&nbsp;Brian Arthur Grimes ,&nbsp;Magne Hillestad ,&nbsp;Liyuan Deng","doi":"10.1016/j.ccst.2024.100307","DOIUrl":"10.1016/j.ccst.2024.100307","url":null,"abstract":"<div><div>Dehydration and CO₂ removal are two important gas separation processes. An efficient membrane enabling simultaneous reduction of water vapor and CO₂ levels from humid gas streams, such as natural gas and power plant flue gas, may advance these processes. In this study, a water-harvesting metal-organic framework, MOF-801, was synthesized with an average particle size of 120 nm, which was then dispersed in a Pebax matrix to fabricate mixed matrix membranes (MMMs). The potential of the MOF-801 as a filler in MMMs was evaluated for water and CO₂ separation from CO₂/N₂ and CO₂/CH₄ mixed gas streams. Compared with the neat Pebax membrane, 70% enhancement in the water permeability was achieved for an MMM of 20 wt.% MOF loading at 10 bar with a humid feed composition of CO₂/CH₄. A considerable CO₂/N₂ separation factor (108) and CO₂ permeability (270 Barrer) were also obtained, exceeding the Robeson upper bound at both dry and humid states. A molecular simulation study was performed to reveal the adsorption sites in the MOF lattice and favorable interactions with gases. Interestingly, competition between gas components close to the Zr atom was observed, which is the favorable site for both CO₂ and water. Competitive adsorption was found to be the dominating transport mechanism for the selective transport of CO₂ and H₂O in MOF-801, revealing the role of MOF-801 in MMMs for CO₂ and water vapor separation under both humid and dry conditions.</div></div>","PeriodicalId":9387,"journal":{"name":"Carbon Capture Science & Technology","volume":"13 ","pages":"Article 100307"},"PeriodicalIF":0.0,"publicationDate":"2024-09-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142326855","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":"Prediction of CO2 adsorption of biochar under KOH activation via machine learning","authors":"Junjie Zhang ,&nbsp;Xiong Zhang ,&nbsp;Xiaoqiang Li ,&nbsp;Zhantao Song ,&nbsp;Jingai Shao ,&nbsp;Shihong Zhang ,&nbsp;Haiping Yang ,&nbsp;Hanping Chen","doi":"10.1016/j.ccst.2024.100309","DOIUrl":"10.1016/j.ccst.2024.100309","url":null,"abstract":"<div><div>To effectively increase the CO₂ adsorption capacity of biochar, the activation process is often an indispensable link. However, the introduction of an activation process poses challenges in clarifying the relationship between the characterization parameters of biochar, adsorption parameters, and CO₂ adsorption capacity. Herein, a comprehensive dataset encompassing the CO₂ adsorption data of KOH-activated biochar using a “two-sep method” was compiled. Subsequently, ridge regression, multi-layer perceptron, and random forest models were employed to predict its CO₂ adsorption performance. To comprehensively explore the effects of activation conditions, physicochemical properties and adsorption parameters on CO₂ adsorption capacities, partial dependence via Shapley additive explanation (SHAP) values analysis was conducted. The results demonstrate that the multilayer perceptron model exhibits the highest prediction accuracy with a test R² value of 0.961. Additionally, it was found that the CO₂ adsorption capacity of activated biochar is primarily determined by micropores and nitrogen-containing groups rather than total pore volume at low adsorption pressure (&lt; 0.3 bar). Moreover, it increases significantly with decreasing average pore size, increasing pore volume, and increasing nitrogen content at low adsorption temperatures (&lt; 20 °C). When the ratio of KOH to biochar is in the range of 1–2 and the activation temperature is ∼ 700 °C, activated biochar with high CO₂ adsorption performance can be obtained. This study may provide valuable insights for the application of activated biochar in CO₂ adsorption.</div></div>","PeriodicalId":9387,"journal":{"name":"Carbon Capture Science & Technology","volume":"13 ","pages":"Article 100309"},"PeriodicalIF":0.0,"publicationDate":"2024-09-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142326857","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":"Efficient methane production from photocatalytic CO2 reduction by InCu0.05Co0.05Ox: The synergistic effect of Co and Cu","authors":"Shuhao Li ,&nbsp;Feng Wang ,&nbsp;Tianhan Shen ,&nbsp;Derrick Ng ,&nbsp;Yuning Huo ,&nbsp;Boxiong Shen ,&nbsp;Zongli Xie","doi":"10.1016/j.ccst.2024.100313","DOIUrl":"10.1016/j.ccst.2024.100313","url":null,"abstract":"<div><div>Photocatalytic reduction of CO₂ to methane (CH₄) is a promising strategy to address CO₂ emissions and energy scarcity. However, low efficiency limits its practical application. This study presents a bimetallic co-doping strategy using Cu and Co to enhance the photocatalytic performance of the In₂O₃ catalyst. The InCu_0.05Co_0.05O_x (InCuCo) catalyst demonstrated a CH₄ yield of 22.3 µmol·g⁻¹·h⁻¹, outperforming In₂O₃ (8.8 µmol·g⁻¹·h⁻¹), InCu (14.5 µmol·g^-1·h⁻¹), and InCo (18.0 µmol·g^-1·h⁻¹). This remarkable improvement highlights the synergistic effects of Cu and Co in the In₂O₃ catalyst. Characterizations and density functional theory (DFT) calculations revealed that Co doping narrows the bandgap of the catalyst, enhancing light utilization, while Cu adjusts the energy band positions and improves CO₂ adsorption. Consequently, the InCuCo catalyst significantly enhances the photocatalytic reduction of CO₂–CH₄, offering remarkable activity and stability. These results provide new insights into CO₂ photoreduction to CH₄, facilitating further practical applications.</div></div>","PeriodicalId":9387,"journal":{"name":"Carbon Capture Science & Technology","volume":"13 ","pages":"Article 100313"},"PeriodicalIF":0.0,"publicationDate":"2024-09-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142326854","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":"Hypercrosslinked natural biopolymers with quasi-unimodal micropores for carbon capture","authors":"Liang Ding ,&nbsp;Yue Wu ,&nbsp;Guanchu Lu ,&nbsp;Yixuan Zhang ,&nbsp;Mariolino Carta ,&nbsp;Xianfeng Fan ,&nbsp;Cher Hon Lau","doi":"10.1016/j.ccst.2024.100305","DOIUrl":"10.1016/j.ccst.2024.100305","url":null,"abstract":"<div><p>Ultra-microporous solid sorbents with high CO₂ adsorption capacities and gas selectivity are preferred for carbon capture. Here we deliver such sorbents <em>via</em> a combination of narrow micropores, lack of mesopores and an abundance of CO₂-philic functional groups. This was achieved by crosslinking lignin waste obtained from a local paper factory, in Lewis's acid deep eutectic solvents (DESs) such as [ChCl][ZnCl₂]₂ and [ChCl][FeCl₃]₂, varying crosslinker types and optimizing experimental parameters. Hypercrosslinked polymers (HCPs) prepared in [ChCl][FeCl₃]₂ with 1,4-dichloroxylene crosslinkers comprised quasi-unimodal, ultra-narrow micropores. At 298 K, 1 bar, and using a gas mixture comprising 15 vol.% CO₂ and 85 vol.% N₂ (similar to post-combustion flue gas), the CO₂ adsorption capacity and CO₂/N₂ selectivity of this HCP reached 18.1 cm³ <em>g</em>⁻¹ and 835, respectively. Deployed in temperature swing adsorption and evaluated for vacuum pressure swing adsorption, the CO₂ recovery rates of this HCP were &gt;87 %, outperforming commercial solid sorbents such as zeolite 13X and PSAO2 HP Molsiv™. The optimization of sorbent microporosity with CO₂-philic functional groups could pave the route towards developing bio-derived solid sorbents for carbon capture.</p></div>","PeriodicalId":9387,"journal":{"name":"Carbon Capture Science & Technology","volume":"13 ","pages":"Article 100305"},"PeriodicalIF":0.0,"publicationDate":"2024-09-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2772656824001179/pdfft?md5=95da19847e8c68cb25c45e0e7608c18c&pid=1-s2.0-S2772656824001179-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142270463","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}