Separation and Purification Technology最新文献

{"title":"Insights into the metal–organic framework-based materials for photocatalytic CO2 reduction","authors":"Qiangsheng Pan, Guiyun Yi, Hui Li, Xin Zhang","doi":"10.1016/j.seppur.2025.134430","DOIUrl":"https://doi.org/10.1016/j.seppur.2025.134430","url":null,"abstract":"The increasing environmental pollution and energy scarcity caused by the massive burning of fossil fuels have become the two major problems and the most controversial issues. The use of sunlight-driven composites to convert carbon dioxide (CO₂) into other value-added compounds is a promising strategy that plays a pivotal role in alleviating energy crisis and solving environmental issues. Metal-organic frameworks (MOFs) are widely employed in photoreductive CO₂ systems because of their tunable structures, excellent photocatalytic activity and abundant active sites. During the CO₂ reduction reaction, the reduction products obtained from different reduction pathways are distinct duo to the involvement of multiple intermediates and complex reduction routes, which makes it more fascinating to rationally regulate the MOF composites to target the generation of different carbonaceous compounds. In this paper, we summarised the latest results of photocatalytic CO₂ reduction by MOF-based composites and introduced the synthesis methods and morphological characteristics of MOF materials. Moreover, the adsorption state of CO₂ molecules on the photocatalysts and the possible pathways experienced by the formation of the final products are outlined. Finally, the development prospects and still existing problems of the CO₂ reduction system catalysed by MOF photocatalysts were presented. We hope that this paper can provide valuable assistance to researchers in the rational modification and design of MOF-based photocatalysts.","PeriodicalId":427,"journal":{"name":"Separation and Purification Technology","volume":"31 1","pages":""},"PeriodicalIF":8.6,"publicationDate":"2025-07-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144669899","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Deep eutectic solvent-assisted synthesis of branched polypyrrole-coated lignocellulosic slurry: developing a composite with sponge-like structure for enhanced hexavalent chromium adsorption","authors":"Qingrun Ni ,&nbsp;Yating Wang ,&nbsp;Yaohui Li ,&nbsp;Joe R. Zhao ,&nbsp;Shoujuan Wang ,&nbsp;Magdi E. Gibril ,&nbsp;Fangong Kong","doi":"10.1016/j.seppur.2025.134427","DOIUrl":"10.1016/j.seppur.2025.134427","url":null,"abstract":"<div><div>Chromium (VI) in industrial wastewater poses severe ecological and health risks, yet developing efficient, sustainable adsorbents remains challenging. Herein, we introduce a new branched sponge-like polypyrrole (PPy)-coated lignocellulosic slurry (PPy@LCS) using deep eutectic solvents (DES) as a green polymerisation medium to construct a PPy@LCS/DES composite for effective Cr(VI) removal from wastewater. The PPy@LCS/DES was synthesized via in situ polymerization using acidic-based DES as a green solvent at 25–65 °C. The chemical characterizations confirmed the successful synthesis of branched PPy with a sponge-like structure. The spongy PPy achieved 98.9 % Cr(VI) removal, adhering to pseudo-second-order kinetics (chemisorption-driven) and Langmuir isotherm equilibrium, with an adsorption capacity of 1491 mg/g and a spontaneous and endothermic process. The mechanism involves Cr(VI) electrostatic attraction, reduction to Cr(III), and subsequent chelation by functional groups. Notably, the adsorbent retained &gt;90 % efficiency over six regeneration cycles, underscoring reusability. The high efficacy of the PPy@LCS/DES removal was attributed to the unique structure and the abundance of functional groups as result of using DES. This work presents a sustainable and cost-effective solution for Cr(VI) remediation, leveraging renewable materials and the principles of green chemistry for environmental remediation.</div></div>","PeriodicalId":427,"journal":{"name":"Separation and Purification Technology","volume":"377 ","pages":"Article 134427"},"PeriodicalIF":8.1,"publicationDate":"2025-07-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144664510","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"An anion-functionalized MOF based on electrostatic potential matching strategy for efficient capture of CO2 from high temperature and humid flue gas","authors":"Zi-Yue Liu ,&nbsp;Shu Yang ,&nbsp;Shuang Chen ,&nbsp;Li-Li Cao ,&nbsp;Hong Zhang ,&nbsp;Shan-Qing Yang ,&nbsp;Ruihan Wang ,&nbsp;Jian-Long Du","doi":"10.1016/j.seppur.2025.134426","DOIUrl":"10.1016/j.seppur.2025.134426","url":null,"abstract":"<div><div>Efficient capture of CO₂ from flue gas will bring significant environmental and economic benefits. But the process is full of challenge because high temperature and humid flue gas always damages the adsorbent. In the present work, a stable anion-pillared MOF (named HBU-24) was obtained by the assembly of ligand <strong>L</strong> (<strong>L</strong> = 1,1,2,2-tetra(pyridin-4-yl)ethene), Cd²⁺ and TiF₆²⁻ ions. The BET surface area of HBU-24 achieves 769.9 m²/g and two kind of pore sizes are found (5.2 Å and 8.6 Å). Due to the matching of the electrostatic potential of fluorine atoms of TiF₆²⁻ with that of carbon atoms of CO₂, the adsorption capacity of CO₂ is as high as 80.2 cm³/g at ambient condition, but the uptakes of CH₄ and N₂ are relatively low (16.0 cm³/g and 3.0 cm³/g). The IAST selectivity of CO₂/N₂ (v/v: 15/85) and CO₂/CH₄ (v/v: 50/50) was calculated as 1662.2 and 63.3. More importantly, it can also efficiently capture CO₂ even at 323 K (59.8 cm³/g). The adsorption mechanism was elucidated through GCMC and DFT calculations. Furthermore, dynamic breakthrough experiments were carried out under different temperature and humidity conditions, the penetration time of CO₂ was longer than that of N₂, which further proved that HBU-24 was suitable to capture CO₂ from high temperature and humid flue gas.</div></div>","PeriodicalId":427,"journal":{"name":"Separation and Purification Technology","volume":"377 ","pages":"Article 134426"},"PeriodicalIF":8.1,"publicationDate":"2025-07-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144664491","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Membrane fouling analysis and chemical cleaning optimization via membrane autopsy for membrane bioreactor from lab to engineering application","authors":"Chun-Hai Wei ,&nbsp;Chen-Xi Sun ,&nbsp;Ze-Bin Chen ,&nbsp;Xia Tang ,&nbsp;Ke Kuang ,&nbsp;Hua-Rong Yu ,&nbsp;Hong-Wei Rong ,&nbsp;Kang Xiao ,&nbsp;Huu Hao Ngo ,&nbsp;Xia Huang","doi":"10.1016/j.seppur.2025.134414","DOIUrl":"10.1016/j.seppur.2025.134414","url":null,"abstract":"<div><div>Chemical cleaning is critical to maintain the long-term stable membrane filtration for membrane bioreactor (MBR) process. Membrane fouling analysis is the prerequisite for optimizing chemical cleaning. Membrane autopsy including scanning electron microscopy with energy disperse spectrum (SEM-EDS), attenuated total reflection Fourier transform infrared spectrum (ATR-FTIR), front-face fluorescence excitation-emission matrix (FF-EEM) and specific clean water flux (SCWF) was employed in this study to reveal the combined organic–inorganic-biological fouling of hollow fiber ultrafiltration membrane from a large MBR plant, where average 160k m³/d mixed municipal (85%) and industrial (15%) wastewater was treated. The lab-scale fouled membrane cleaning tests showed that the optimal concentration of sodium hypochlorite (NaClO) was active chlorine of 2400 mg/L with pH of 11 and the optimal cleaning time was 12 h, the optimal concentration of oxalic acid (H₂C₂O₄) was 10 g/L (equivalent pH of 1.42) and the optimal cleaning time was 8 h, and the optimal cleaning sequence was H₂C₂O₄ followed by NaClO. H₂C₂O₄ cleaning mainly removed inorganic foulants and destroyed the connection between inorganic substances and organic substances, which was beneficial to the effective removal of organic-biological foulants by the following NaClO cleaning. The engineering-scale cleaning test in a 300 m³ membrane tank in the MBR plant demonstrated that the above-mentioned optimal cleaning was superior to the routine cleaning of NaClO followed by citric acid (C₆H₈O₇), the reagent cost was reduced by 43.1%, and the cleaning time was reduced by 37.5%. Thus, NaClO should be the dominant cleaning reagent and acid cleaning should be implemented before NaClO cleaning if necessary. The SCWF measurement revealed that the upper membrane unit suffered less fouling due to its lower flux caused by more sludging in membrane fibers than the lower membrane unit in double-deck cartridge. Therefore, air scouring along membrane fibers should be uniformly distributed especially for the upper membrane unit to release its filtration capacity.</div></div>","PeriodicalId":427,"journal":{"name":"Separation and Purification Technology","volume":"377 ","pages":"Article 134414"},"PeriodicalIF":8.1,"publicationDate":"2025-07-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144664546","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Synergistic recycling of spent LiFePO4 batteries with chromium-plating wastewater: a self-sustained approach for selective lithium leaching and dual waste valorization","authors":"Chaocheng Zeng, Lanbin Wang, Beikai Zhang, Lili Liu, Jinhui Li","doi":"10.1016/j.seppur.2025.134422","DOIUrl":"https://doi.org/10.1016/j.seppur.2025.134422","url":null,"abstract":"As the dominant cathode material for power and energy storage systems, lithium iron phosphate (LiFePO₄) batteries hold over 70 % of the market share in China, with spent LiFePO₄ (S-LFP) waste projected to exceed 2 million tons by 2030. However, recycling S-LFP remains challenging due to low economic viability and secondary pollution risks from conventional hydrometallurgical methods. This study introduces an innovative “waste-synergistic” strategy for dual waste valorization, utilizing Cr(VI)-laden electroplating wastewater as a self-sustained lixiviant to achieve selective lithium extraction (92.34 %) from S-LFP cathode and Cr(VI) detoxification (99.11 %). Redox-driven leaching via Fe(II)-Cr(VI) coupling shows low activation energy (17.62 kJ/mol). Resynthesized LiFePO₄ from recycled Li₂CO₃ and FePO₄ exhibits robust electrochemical performance, delivering an initial discharge capacity of 146 mA·h·g⁻¹ at 1C and retaining 95.4 % capacity after 100 cycles. Life-cycle assessment and economic analysis revealed significant reductions in environmental impact, alongside a net profit of US$1.34 per kilogram of processed S-LFP powder. This self-sustained closed-loop approach mitigates environmental hazards from both S-LFP and Cr(VI) effluents while advancing circular economy principles, establishing a scalable and sustainable paradigm for lithium battery recycling.","PeriodicalId":427,"journal":{"name":"Separation and Purification Technology","volume":"17 1","pages":""},"PeriodicalIF":8.6,"publicationDate":"2025-07-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144664612","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"pH-dependent phenanthrene degradation by Fe(III)-sodium tripolyphosphate-activated H2O2: dominant reactive oxygen species and roles of ligands","authors":"Xiao-Hong Ma ,&nbsp;Ying-Ying Wu ,&nbsp;Shao-Fei Li ,&nbsp;Kun Jiang ,&nbsp;Li-Ting Sun ,&nbsp;Li-Bang Ma ,&nbsp;Fu-Zheng Zhao ,&nbsp;Qing-Miao Yu","doi":"10.1016/j.seppur.2025.134391","DOIUrl":"10.1016/j.seppur.2025.134391","url":null,"abstract":"<div><div>Polycyclic aromatic hydrocarbons (PAHs) persist as environmentally recalcitrant contaminants across terrestrial, aquatic, and atmospheric matrices, posing substantial carcinogenic and mutagenic threats to human health. Conventional Fenton systems face limitations in alkaline wastewater treatment due to pH constraints, iron sludge generation, and poor oxidant efficiency. This study demonstrates a sodium tripolyphosphate (STPP)-enhanced Fe(III)/H₂O₂ system achieving effective phenanthrene degradation (95.4 % removal) under mild alkaline conditions (pH 9.0). Mechanistic investigations reveal that STPP coordinates Fe(III) through P=O bonding, forming stable [Fe(H_mP₃O₁₀)₂]ⁿ⁻ complexes that prevent iron precipitation and sustain redox cycling. The optimized Fe(III)/STPP/H₂O₂ molar ratio (1/1/20) delivered an apparent kinetic constant (<em>k</em>_obs) of 2.8 × 10⁻² min⁻¹, representing a 31-fold enhancement over conventional Fenton systems. The system maintained efficacy across pH 7.0–9.0, showing resistance to common anions while exhibiting sensitivity to elevated Ca²⁺/Mg²⁺ concentrations (500 mg/L). Reactive oxygen species (ROS) analysis revealed pH-dependent mechanisms: hydroxyl radicals (^•OH) predominated under acidic conditions, while singlet oxygen (¹O₂) became primary under alkalinity through H₂O₂ → O₂^•−→¹O₂ conversion. Density functional theory calculations confirmed that alkaline OH⁻ promotes H₂O₂ activation to O₂^•−, facilitating ¹O₂ generation. Three degradation pathways involving hydroxylation and ring cleavage produced less toxic intermediates. This STPP-modified Fenton process enables ¹O₂-driven PAH oxidation in alkaline wastewater, overcoming conventional Fenton limitations. The developed technology demonstrates significant potential for sustainable remediation of PAH-contaminated wastewater through ligand-enhanced ROS generation.</div></div>","PeriodicalId":427,"journal":{"name":"Separation and Purification Technology","volume":"377 ","pages":"Article 134391"},"PeriodicalIF":8.1,"publicationDate":"2025-07-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144664513","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Chiral amines production by compartmentalized enzymes in membrane-based flow bio-catalysis","authors":"Sara Barricella ,&nbsp;Kevin H. Putera ,&nbsp;Victoria S. Haritos ,&nbsp;Benny D. Freeman ,&nbsp;Gil Garnier","doi":"10.1016/j.seppur.2025.134415","DOIUrl":"10.1016/j.seppur.2025.134415","url":null,"abstract":"<div><div>Multi-enzyme biocatalysis can mimic the synthetic capabilities of natural metabolic pathways but faces significant challenges, including the need for enzyme immobilization and cofactor recycling, separation of incompatible enzymes, and mitigation of product inhibition. Here, these limitations are addressed by compartmentalizing enzymes and cofactors within a nanoporous membrane used in flow mode. Two incompatible enzymes, a protease and a ω-transaminase, were successfully retained within distinct polydopamine/polyethyleneimine layers of the membrane. Pure enantiomers of amino acids were generated from racemic methyl ester precursors via the enzymatic membrane. As the flow rate across the membrane can be precisely controlled, residence time and substrate conversion can be optimized and inhibitory ketone byproducts removed. At optimal conditions, the enantiomeric excess reached 97 ± 2 %. Cofactor retention was achieved by electrostatic trapping of pyridoxal-5′ phosphate within a polyelectrolyte layer of the membrane; a single application of cofactor was effective for 3 cycles of flow catalysis thereby reducing cost. The compartmentalization of enzymes and cofactors within membranes operated in flow mode offers a new pathway for conducting multi-step biocatalysis which is especially suited for the separation of incompatible enzymes and the continuous removal of inhibitors, resulting in a flexible and readily scalable approach.</div></div>","PeriodicalId":427,"journal":{"name":"Separation and Purification Technology","volume":"377 ","pages":"Article 134415"},"PeriodicalIF":8.1,"publicationDate":"2025-07-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144664543","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"The impact of process parameters on the performance of a wash column in an integrated suspension melt crystallization pilot plant","authors":"Ronja Heming, Okan Yilmaz, Kerstin Wohlgemuth","doi":"10.1016/j.seppur.2025.134411","DOIUrl":"https://doi.org/10.1016/j.seppur.2025.134411","url":null,"abstract":"The development of efficient and environmentally friendly industrial purification technologies is a key trend in the chemical industry. This study focuses on suspension melt crystallization (freeze concentration), which has garnered significant attention due to its exceptional purification efficiency and low energy consumption, particularly when utilizing renewable energy sources. This technology presents a promising alternative for dewatering processes such as desalination and wastewater treatment. To fully leverage the advantages of suspension melt crystallization, effective solid–liquid separation and crystal purification are crucial, typically achieved through continuously operated wash columns integrated with crystallization units. However, the intricate operation of these columns necessitates a comprehensive understanding of how various process parameters impact their operational range and purification efficiency. In this research, a systematic experimental approach using a binary aqueous model system with sodium chloride was employed to evaluate the performance of a mechanical piston-type wash column equipped with a melt loop. Three critical process parameters were investigated: wash front height, melt loop temperature, and compression time of the piston. Our findings indicate that within stable operating conditions these parameters significantly influence the purification efficiency by maintaining a constant production rate. Notably, optimizing the wash front height and melt loop temperature led to an impressive purification efficiency of approximately 99.9% at lower values for both parameters. These results highlight the potential for enhanced operational performance in industrial applications and underscore that the melt temperature is also a critical parameter for process control.","PeriodicalId":427,"journal":{"name":"Separation and Purification Technology","volume":"9 1","pages":""},"PeriodicalIF":8.6,"publicationDate":"2025-07-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144664541","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"MXene-based composites as emerging adsorbents for removal of environmental pollutants","authors":"Jiang-Bo Huo, Ting Qin, Rui Cheng, Xuan Guo, Guoce Yu","doi":"10.1016/j.seppur.2025.134408","DOIUrl":"https://doi.org/10.1016/j.seppur.2025.134408","url":null,"abstract":"The presence of water pollutants poses a significant threat to both human health and aquatic ecosystems, highlighting the necessity of their removal. Among various removal technologies, adsorption is an effective and reliable method for removing harmful substances from water and wastewater, and its performance is closely related to the structural characteristics of the adsorbent. MXene is a new class of two-dimensional (2D) inorganic materials, consisting of atomically thin layers, mainly including transition metal carbides, nitrides, or carbon–nitrogen compounds. With a unique 2D structure, large specific surface area, and abundant functional groups, MXene shows good removal effects on various pollutants. This review focused on MXene-based composites as emerging adsorbents for the removal of environmental pollutants. First, recent research progress on the structure and properties of MXene-based composites, as well as their synthesis and modification methods, was studied. Additionally, the adsorption performance and mechanisms of different pollutants, including metal cations, radionuclides, and organic pollutants onto MXene-based composites, were systematically reviewed. Our research indicates that the number of layers and surface functional groups of MXene, as well as the initial concentration, pH, and temperature of the solution, significantly influence adsorption performance. Additionally, MXene-based composites (e.g., hydroxyl groups, oxygen, fluorine, etc.) are able to strongly interact with pollutants through electrostatic interactions, ion-exchange interactions, and surface complexation. These adsorbents also exhibit good regeneration ability and recycling performance. Finally, we summarized the challenges faced by MXene-based adsorbents, such as the need to focus more on the efficient modification of MXene materials, improving their performance in actual water bodies, considering their biocompatibility, developing new MXene materials, and promoting sustainable development, among others. We also outlined future research directions for MXene-based materials. This review deepens our understanding of MXene-based composite materials and lays the foundation for their application in pollutant removal.","PeriodicalId":427,"journal":{"name":"Separation and Purification Technology","volume":"109 1","pages":""},"PeriodicalIF":8.6,"publicationDate":"2025-07-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144664545","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Development of Novel DBA-DMEA solvent for CO2 absorption and regeneration in the packed column","authors":"Liangyu Zou ,&nbsp;Kefei Wang ,&nbsp;Junbin Xiao ,&nbsp;Chuankun Jia ,&nbsp;Yangqiang Huang ,&nbsp;Zhiwu Liang","doi":"10.1016/j.seppur.2025.134412","DOIUrl":"10.1016/j.seppur.2025.134412","url":null,"abstract":"<div><div>The mass transfer process of CO₂ absorption into blended DBA-DMEA (di-n-butylamine; N,N-dimethyl ethanolamine) solution was studied over different operating conditions in a lab-scale absorption column (H = 1.3 m, D = 27 mm) randomly packed with Dixon rings. The effects of 5 vital operating parameters on volumetric overall mass transfer coefficient (<em>K_Ga_v</em>) were comprehensively investigated. A new predicted model was proposed on basis of the experimental value of <em>K_Ga_v</em>, which gave a progressive and accurately predication performance. In addition, CO₂ stripping from rich-loaded aqueous DBA-DMEA solution was also investigated in the same column with corresponding operating parameters, the reboiler heat duty (Q_reb) was selected as the benchmark. The solvent regeneration process was also validated in a sealed reactor, turning out that DBA-DMEA system showed much lower heat duty in all conditions. Both the mass transfer and heat duty results indicate the DBA-DMEA solution becoming efficient and promising amine-based absorbent in post-combustion CO₂ capture.</div></div>","PeriodicalId":427,"journal":{"name":"Separation and Purification Technology","volume":"377 ","pages":"Article 134412"},"PeriodicalIF":8.1,"publicationDate":"2025-07-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144664544","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}