Journal of Supercritical Fluids最新文献

{"title":"Sequential high-pressure extractions as a strategy for biorefining peanut (Arachis hypogaea L.) co-products","authors":"Guilherme Dallarmi Sorita,Fernanda V. Leimann,Luciano Vitali,Mayara da Silva,Sandra R.S. Ferreira","doi":"10.1016/j.supflu.2026.107177","DOIUrl":"https://doi.org/10.1016/j.supflu.2026.107177","url":null,"abstract":"","PeriodicalId":17078,"journal":{"name":"Journal of Supercritical Fluids","volume":"11 1","pages":"107177"},"PeriodicalIF":3.9,"publicationDate":"2026-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149208808","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Commercialization of Natural Plant Oil as a Cosmetic Ingredient using Liquefied Dimethyl Ether Extraction","authors":"Shogo Suzuki,Shogo Torii,Kento Kunihiro,Kensuke Yotsumoto","doi":"10.1016/j.supflu.2026.107172","DOIUrl":"https://doi.org/10.1016/j.supflu.2026.107172","url":null,"abstract":"","PeriodicalId":17078,"journal":{"name":"Journal of Supercritical Fluids","volume":"33 1","pages":"107172"},"PeriodicalIF":3.9,"publicationDate":"2026-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149208809","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Experimental data, thermodynamic modeling, and machine learning for determining the solubility of phenazine in supercritical carbon dioxide","authors":"Ratna Surya Alwi,Adel Noubigh,Seyed Ali Sajadian","doi":"10.1016/j.supflu.2026.107173","DOIUrl":"https://doi.org/10.1016/j.supflu.2026.107173","url":null,"abstract":"","PeriodicalId":17078,"journal":{"name":"Journal of Supercritical Fluids","volume":"130 1","pages":"107173"},"PeriodicalIF":3.9,"publicationDate":"2026-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149208807","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Density as a Complementary Probe to Transmitted Light Intensity in Assessment of Liquid-Liquid Phase Separation in High-Pressure Polymer Solutions Showing UCST or LCST","authors":"Syed Ahmed Jarif,Erdogan Kiran","doi":"10.1016/j.supflu.2026.107164","DOIUrl":"https://doi.org/10.1016/j.supflu.2026.107164","url":null,"abstract":"","PeriodicalId":17078,"journal":{"name":"Journal of Supercritical Fluids","volume":"14 1","pages":"107164"},"PeriodicalIF":3.9,"publicationDate":"2026-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149089709","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Continuous Fabrication of Polypropylene‑Based Porous Photothermal Fibers via CO₂‑Assisted Extrusion Foaming and Uniaxial Stretching for Thermal Management","authors":"Dapeng Dong,Kang Tao,Lifeng Ding","doi":"10.1016/j.supflu.2026.107175","DOIUrl":"https://doi.org/10.1016/j.supflu.2026.107175","url":null,"abstract":"","PeriodicalId":17078,"journal":{"name":"Journal of Supercritical Fluids","volume":"13 1","pages":"107175"},"PeriodicalIF":3.9,"publicationDate":"2026-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149208810","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Statistical analysis of transient density field data of supercritical CO2 flow inside a local-heated channel from high-speed interferometer measurement","authors":"Gang Zeng ,&nbsp;Hao Huang ,&nbsp;Zhaojia Liang ,&nbsp;Lin Chen ,&nbsp;Yanping Huang","doi":"10.1016/j.supflu.2026.106927","DOIUrl":"10.1016/j.supflu.2026.106927","url":null,"abstract":"<div><div>For high-speed supercritical fluid turbulent flows, both boundary thermal perturbations and turbulent fluctuations introduce strong boundary-layer instabilities, giving rise to localized fluctuations that markedly influence boundary-layer development and heat transfer efficiency. In this study, a high-speed interferometer system was employed to capture the rapid evolution of turbulent heat-transfer transition processes and statistical analysis of the transient density field was conducted. Under a steady turbulent background, small-scale thermal disturbances were introduced, stimulating the rapid amplification of boundary stripes and the emergence of wave structures in both streamwise and wall-normal directions. Interferometric images were processed via Fourier transform (FT) and spatial carrier phase-shift (SCPS) methods, yielding quantitative local density fields. Based on Reynolds and temporal averaging, instantaneous quantities were decomposed into mean and fluctuating components, from which a statistical framework incorporating both spatial and temporal evolutionary features was established. Results show strong thermal expansion and convection enhance turbulence, with disturbance amplitudes of ±0.04 kg/m³ near the wall—larger than in the bulk flow. At low heat flux (2014 W/m²), inertia dominates and disturbances remain weak, whereas high flux (14057 W/m²) yields sharp gradients (∼0.6 kg/m³) and buoyancy-driven instabilities. The temporal evolution of boundary-layer convection reveals a transition from conduction-to-convection-dominated heat transfer, governed by buoyancy–mainstream coupling and shear-turbulence enhancement. Local thermal perturbations exhibit nonlinear amplification due to thermo-compressibility, intensified density gradients, turbulence–disturbance feedback, and buoyancy-induced shear-layer destabilization.</div></div>","PeriodicalId":17078,"journal":{"name":"Journal of Supercritical Fluids","volume":"233 ","pages":"Article 106927"},"PeriodicalIF":4.4,"publicationDate":"2026-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146152656","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Evaluation of N,N-dibutyloctanamide as a ligand for supercritical CO₂-mediated plutonium recovery: Solubility, model correlations and extraction studies","authors":"A. Divya ,&nbsp;K.C. Pitchaiah ,&nbsp;C.V.S.Brahmananda Rao","doi":"10.1016/j.supflu.2026.106929","DOIUrl":"10.1016/j.supflu.2026.106929","url":null,"abstract":"<div><div>N,N-dialkylamides are increasingly recognized as superior to well-established organophosphorus compounds for extraction/recovery of actinides. This study investigates the development of a green supercritical fluid extraction technique for efficient recovery of plutonium from aqueous waste solutions using N,N-dibutyloctanamide (DBOA). In this context, solubility of DBOA in supercritical carbon dioxide (SCCO₂) is measured to demonstrate its potential in CO₂-assisted green approach for extraction of plutonium. A dynamic flow method was employed to measure the solubilities, over a pressure range of 10 MPa to 20 MPa and temperature ranging from 313 K to 343 K. Solubility was found to be in the order of 10⁻² mol∙mol⁻¹, increasing with pressure while exhibiting retrograde solubility with temperature. Experimental data were correlated using five different models for predictive analysis. Of the models applied, Mendez-Teja equation demonstrated superior prediction with the lowest average deviation and optimal fitting parameters. These results demonstrated that DBOA has adequate solubility in SCCO₂, making it a viable ligand for the recovery of actinides. DBOA was subsequently employed as a ligand for the recovery of plutonium from aqueous waste using an in-house designed glove box. The influence of temperature, pressure and acidity on extraction efficiency was investigated and conditions were optimized. Under optimized conditions, an extraction efficiency of 96 % was achieved. This approach offers a promising route for plutonium recovery from waste matrices with minimum secondary liquid waste generation.</div></div>","PeriodicalId":17078,"journal":{"name":"Journal of Supercritical Fluids","volume":"233 ","pages":"Article 106929"},"PeriodicalIF":4.4,"publicationDate":"2026-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146161027","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Numerical study on geometric parameter optimization of wall-cooled hydrothermal combustion reactor","authors":"Mingjing Fan,&nbsp;Xiaoge Zhang,&nbsp;Yu Zhang,&nbsp;Haoze Wang,&nbsp;Juyuan Mei,&nbsp;Hao Wang,&nbsp;Youjun Lu","doi":"10.1016/j.supflu.2026.106930","DOIUrl":"10.1016/j.supflu.2026.106930","url":null,"abstract":"<div><div>A wall-cooled reactor (WCR) for hydrothermal combustion was modeled using the supercritical water diluted flamelet generated manifolds (SCWD-FGM) model for geometric optimization. The effects of four key geometric parameters on reactor performance were systematically analyzed using a one-factor-at-a-time (OFAT) approach. Results indicate that increasing the fuel nozzle inner diameter weakens fuel–oxidizer mixing and reduces reaction intensity while enhancing wall cooling; increasing the fuel nozzle recess depth improves flame stability but raises the oxidizer nozzle inner wall temperature; increasing the cooling water layer thickness has little effect on combustion but strengthens wall protection; and adding additional cooling water injection stages lowers downstream wall temperature while slightly increasing upstream temperature. Based on these insights, a sensitivity-guided coordinate search method was applied to optimize the baseline configuration. The optimized configuration slightly increases the axial distance for 99 % hydrogen conversion by 0.2 mm, but substantially reduces the oxidizer nozzle inner wall temperature by 536 °C and the reactor inner wall temperature by 4 °C. The enlarged geometry increases material consumption by over 70 %, but it reduces the peak temperatures of critical components and broadens the range of feasible structural materials, thereby markedly enhancing operational safety and structural robustness under supercritical conditions.</div></div>","PeriodicalId":17078,"journal":{"name":"Journal of Supercritical Fluids","volume":"233 ","pages":"Article 106930"},"PeriodicalIF":4.4,"publicationDate":"2026-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146160133","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Dynamic performance comparison of supercritical CO₂ Brayton cycle layouts using an enhanced dynamic model","authors":"Tariq Alsawy ,&nbsp;Ramy H. Mohammed ,&nbsp;Osama Mesalhy ,&nbsp;Mohamed Abdelkareem","doi":"10.1016/j.supflu.2026.106896","DOIUrl":"10.1016/j.supflu.2026.106896","url":null,"abstract":"<div><div>There is a growing interest in the supercritical CO₂ Brayton cycle (SCO₂BC) as a high-efficiency power generation technology across various energy sectors, including renewable energy. SCO₂BC dynamic modelling is key to grasp its performance, especially under off-design conditions such as fluctuating operating load. Numerous studies that compare the steady-state behavior of different SCO₂BC layouts are present. However, existing literature lacks in-depth analyses of transient responses of different SCO₂BC layouts with accuracy-improved turbomachinery performance-map. This research fills this gap by comparing four layouts: recuperated (RCU), recompression (RCOMP), reheat (RHT), intercool (INC), through dynamic simulations with accuracy-improved turbomachinery models. The transient responses of the key SCO₂BC cycle performance parameters are deeply investigated, offering novel insights into their transient behavior. An additional novelty of this work is the usage of corrected turbomachinery performance maps with improved prediction accuracy for the dynamic comparison. The study reveals that mass flow rate and compressor inlet conditions are most affected by a cooling water temperature disturbance (ColdT), while turbine inlet state is more sensitive to a heater temperature change (HotT). For all the studied layouts, net power responses are primarily driven by mass flow rate and turbine inlet temperature (TIT) for ColdT and HotT disturbances, respectively. Layout configurations (number and arrangement of turbomachines) influence transient response sensitivity. RCU and RHT layouts exhibit larger net power fluctuations for ColdT, while RCU and INC layouts show larger responses for HotT. The RCOMP is generally the most stable layout, while RHT and INC demonstrate conditional stability depending on the disturbance.</div></div>","PeriodicalId":17078,"journal":{"name":"Journal of Supercritical Fluids","volume":"232 ","pages":"Article 106896"},"PeriodicalIF":4.4,"publicationDate":"2026-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145995410","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Evaluation of the PρT-SAFT, PC-SAFT, I-PC-SAFT, PρT-PC-SAFT, SRK, PR, and PT equations of state for predicting thermodynamic properties of furfural, its derivatives, and their mixtures","authors":"Arash Pakravesh ,&nbsp;Amir H. Mohammadi ,&nbsp;Dominique Richon","doi":"10.1016/j.supflu.2026.106926","DOIUrl":"10.1016/j.supflu.2026.106926","url":null,"abstract":"<div><div>Thermodynamic properties of furfural (FUR), its derivatives, and their mixtures were modeled using cubic and SAFT-type equations of state (EoSs) to assess their relative accuracy for process design and optimization. To this end, PρT-SAFT EoS parameters for FUR, furfuryl alcohol, tetrahydrofurfuryl alcohol, furfuryl acetate, furfuryl propionate, furfuryl butyrate, and 5-methylfurfural were determined. Subsequently, the thermodynamic properties of pure FUR and its derivatives, including volumetric properties, caloric properties, and VLE, were evaluated using seven EoSs (SRK, PR, PT, PρT-SAFT, PC-SAFT, I-PC-SAFT, and PρT-PC-SAFT), based on the availability of experimental data and adjustable parameters. For PC-SAFT, multiple published parameter sets were compared where applicable. In summary, for pure compounds, SAFT-based EoSs consistently outperformed cubic EoSs across all properties examined. Among all models, PρT-SAFT provided the highest overall accuracy, yielding the lowest deviations for density, heat capacity, speed of sound, and VLE predictions. Based on these results, only PC-SAFT, PρT-PC-SAFT, and PρT-SAFT were applied to model seven binary mixtures containing FUR and its derivatives, for which density, sound velocity, VLE, and LLE were predicted. PρT-SAFT showed superior performance for all mixture properties considered and consistently improved agreement with experimental data compared to PC-SAFT and PρT-PC-SAFT. Quantitatively, the PρT-SAFT and PρT-PC-SAFT EoSs achieved a total average absolute deviation (AAD) of 1.8 % and 2.3 % for the studied systems, compared to 5.3 % for PC-SAFT parameterized using VLE data. These results demonstrate that, for SAFT-type EoSs applied to FUR-based systems, the parameterization strategy, particularly the use of <span><math><mrow><mi>P</mi><mi>ρ</mi><mi>T</mi></mrow></math></span> data, has a greater impact on predictive accuracy than the specific theoretical formulation of the EoS.</div></div>","PeriodicalId":17078,"journal":{"name":"Journal of Supercritical Fluids","volume":"232 ","pages":"Article 106926"},"PeriodicalIF":4.4,"publicationDate":"2026-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146134622","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}