Chemical Engineering Research & Design最新文献

{"title":"Advancements and future trends in chemical process optimization: Challenges, opportunities, and applications","authors":"Juan Gabriel Segovia-Hernández, Eduardo Sánchez-Ramírez, Maricruz Juarez-García","doi":"10.1016/j.cherd.2025.08.022","DOIUrl":"10.1016/j.cherd.2025.08.022","url":null,"abstract":"","PeriodicalId":10019,"journal":{"name":"Chemical Engineering Research & Design","volume":"221 ","pages":"Pages 326-327"},"PeriodicalIF":3.9,"publicationDate":"2025-08-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144852912","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 investigation of particle segregation in millstone systems: An enhanced quantification approach","authors":"Yuntao Zhu ,&nbsp;Zhong Luo ,&nbsp;Haobin Wang ,&nbsp;Zhen Zhang","doi":"10.1016/j.cherd.2025.08.021","DOIUrl":"10.1016/j.cherd.2025.08.021","url":null,"abstract":"<div><div>As the core equipment in powder grinding, the vertical mill's material uniformity on the millstone directly affects grinding efficiency and product quality. Particle segregation critically affects this uniformity. However, the underlying mechanism of particle segregation within the millstone remains unclear, and existing quantification methods lack accuracy. To address these issues, this study proposes an enhanced quantification approach and investigates the segregation mechanism through a Discrete Element Method (DEM). Additionally, this study performs simulations utilizing both spherical and tetrahedral particles. Specifically, the trajectories of spherical particles were analyzed to explore the axial segregation mechanism, whereas the position probability method was applied to tetrahedral particles for investigating the axial segregation mechanism at the edge of the millstone. Finally, the proposed weighted mass segregation index was compared with traditional indices to evaluate its performance. Results reveal significant axial segregation on the millstone, primarily driven by size effects and upward migration of coarse particles. However, at the edge of the millstone, the axial mobility of particles decreases due to compressive forces, suppressing the size effects and resulting in a slower segregation rate compared to the inner regions. The weighted mass segregation index effectively mitigates grid-induced biases, providing a precise tool for quantifying particle segregation.</div></div>","PeriodicalId":10019,"journal":{"name":"Chemical Engineering Research & Design","volume":"223 ","pages":"Pages 238-252"},"PeriodicalIF":3.9,"publicationDate":"2025-08-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145263822","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":"Pore-scale micromodel experiments for recovery performance evaluation of carbonated water injection for carbon utilization and storage","authors":"Ke Chen ,&nbsp;Yi Zhang ,&nbsp;Jing-Ru Zhang ,&nbsp;Wen-Yu Geng ,&nbsp;Yong-Chen Song ,&nbsp;Yue-chao Zhao","doi":"10.1016/j.cherd.2025.08.020","DOIUrl":"10.1016/j.cherd.2025.08.020","url":null,"abstract":"<div><div>Carbonated water injection (CWI) has emerged as a promising dual-purpose technique for enhanced oil recovery (EOR) and geological CO₂ sequestration. Despite increasing attention, the combined effects of injection rate and CO₂ phase state (gaseous, liquid, supercritical) on pore-scale displacement dynamics remain poorly understood, and no systematic investigation has been conducted to date. In this study, a custom-designed high-resolution microfluidic platform capable of operating under reservoir-relevant pressure and temperature conditions was developed to directly visualize and quantify the pore-scale displacement mechanisms during CWI. The influence of injection rate and CO₂ phase behavior on oil recovery and carbon retention was systematically evaluated across a range of controlled conditions. Quantitative image analysis reveals that capillary number (<em>Ca</em>) and viscosity ratio (<em>M</em>) jointly govern displacement patterns and residual oil saturation, highlighting the critical role of flow regime in determining recovery outcomes. A <em>Ca</em>–<em>M</em> mechanistic regime map was proposed as a predictive framework for evaluating and optimizing CWI performance under diverse operational scenarios. Furthermore, a critical transition threshold (<em>Ca</em> ≈ 4 × 10⁻⁴) was identified, delineating the boundary between capillary and viscous-dominated displacement regimes. Among all tested configurations, secondary carbonated water injection (SCWI) under supercritical CO₂ conditions yields the highest oil recovery (61.57 %) and CO₂ storage efficiency (51.19 %), significantly outperforming both waterflooding and tertiary injection schemes. The observed recovery enhancement was attributed to a combination of CO₂–induced oil swelling, interfacial tension reduction, and wettability alteration, which collectively promote the mobilization of trapped oil. These findings provide the first quantitative insights into coupled pore-scale flow dynamics under reservoir-relevant conditions and offer a robust scientific basis for the design and upscaling of integrated EOR–CCUS systems.</div></div>","PeriodicalId":10019,"journal":{"name":"Chemical Engineering Research & Design","volume":"221 ","pages":"Pages 472-486"},"PeriodicalIF":3.9,"publicationDate":"2025-08-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144892249","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":"Efficient degradation of high concentration sulfur hexafluoride by Ni doped ceria combined with dielectric barrier discharge","authors":"Runze Dong ,&nbsp;Qian Yu ,&nbsp;Wenhao Li ,&nbsp;Dong Fu","doi":"10.1016/j.cherd.2025.08.019","DOIUrl":"10.1016/j.cherd.2025.08.019","url":null,"abstract":"<div><div>Non-precious Ni/CeO₂ demonstrates exceptional potential in plasma-assisted catalysis for SF₆ degradation. This study integrated Ni-doped CeO₂ with dielectric barrier discharge (DBD) to achieve energy-efficient decomposition of high-concentration SF₆. By optimizing the Ni/Ce molar ratio and reaction parameters, at 50 W, 10Ni-Ce (10:100) achieved a degradation removal rate of 93.47 % for 2 %SF₆ and an energy yield (EY) of 14.42 g/kWh, which was 3.11 times higher than DBD alone. For 1.5 %SF₆, DRE reached 99.99 %, albeit with lower EY (11.72 g/kWh). Characterization showed Ni doping reduced CeO₂ crystallinity, enlarged surface area, and boosted oxygen vacancy (V_O) content, enhancing catalytic activity. Density functional theory calculations showed that the lattice distortion caused by Ni in CeO₂ reduced the formation energy of V_O, and the highly active surface oxygen atoms promoted the degradation of SF₆. Plasma-generated active particles (O*) synergizes with V_O to accelerate S-F bond cleavage. This work highlights Ni-Ce/DBD synergy as a viable strategy for low-energy SF₆ abatement.</div></div>","PeriodicalId":10019,"journal":{"name":"Chemical Engineering Research & Design","volume":"221 ","pages":"Pages 213-224"},"PeriodicalIF":3.9,"publicationDate":"2025-08-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144830211","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 simulation and control strategy of an absorption heat transformer with a falling film evaporator","authors":"I.J. Canela-Sánchez ,&nbsp;R.F. Escobar-Jiménez ,&nbsp;D. Juárez-Romero ,&nbsp;J. Reyes-Reyes","doi":"10.1016/j.cherd.2025.08.003","DOIUrl":"10.1016/j.cherd.2025.08.003","url":null,"abstract":"<div><div>The performance of an absorption heat transformer (AHT) with falling film heat exchangers is determined by the heat sources, the wetting of the heat transfer tubes, and by the thickness of the falling film. Additionally, an incorrect management of the heat sources may result in wasted energy. A control strategy implemented in an AHT can be a tool to address these issues. Therefore, in this work, the implementation of two PID controllers in an AHT model is presented. The control was implemented in an AHT model developed in gPROMS® using its control libraries. The energy balances, correlations for heat transfer coefficients, and the wetting efficiency of the unit are considered. The first PID controller is proposed to guarantee the complete falling film evaporation by controlling the evaporator heat source outlet temperature. The Second PID controller helps to reach an optimal heat transfer rate by controlling the evaporator inlet mass flow rate to obtain complete wetting efficiency and a minimum film thickness. The temperature and mass flow rate in the heat sources of the generator and evaporator are manipulated. Therefore, the control system aids in optimizing energy, avoiding a useless increment of the heat source temperature and mass flow rate. First, a sensitivity analysis is carried out to establish the effect of the manipulated variables on the inlet and the evaporator vapor mass flow rate. The results of the first PID controller show that the evaporator temperature can be decreased by controlling the system when the amount of fluid to evaporate decreases. For the second PID controller, to maintain a constant inlet mass flow rate, the generator temperature needs to be increased by approximately 2 °C due to the increment in the condenser temperature caused by environmental conditions. When the mass flow rate is manipulated, the process can be controlled up to a limit because the process has a limit of vapor production at a high mass flow rate. The fair-flow configuration of the heat sources with the implementation of PID controllers was adequate because the inlet mass flow rate evaporated completely.</div></div>","PeriodicalId":10019,"journal":{"name":"Chemical Engineering Research & Design","volume":"221 ","pages":"Pages 295-307"},"PeriodicalIF":3.9,"publicationDate":"2025-08-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144852909","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":"Eco-friendly desulfurization for production ultraclean fuel using coated and uncoated composite magnetic-activated carbon catalyst in new oscillatory baffled reactor: Experiments and optimal kinetic prediction","authors":"Jasim I. Humadi ,&nbsp;Wadood T. Mohammed","doi":"10.1016/j.cherd.2025.08.018","DOIUrl":"10.1016/j.cherd.2025.08.018","url":null,"abstract":"<div><div>In this work, continuous oxidative desulfurization (ODS) of diesel fuel in novel oscillatory basket central baffled reactor utilizing hydrogen peroxide (H₂O₂) oxidant and new synthetic coated (alumina) and uncoated magnetic composite catalyst (5 % MnO₂–3 % Fe₂O₃/AC) is studied. Desulfurization efficiency is performed at various effects operation conditions including reaction temperature and residence time, and oscillation conditions (amplitude and frequency). Results is proved that increasing reaction temperature and residence time remarkably promotes the efficiency of ODS owing to accelerated reaction kinetics and improved molecular diffusion. Moreover, higher oscillation conditions (frequency and amplitude) enhanced intensity of mixing and regeneration of the catalyst surface, which leads to increased removal of sulfur compounds. Also, alumina coating is found to hinder sulfur removal, likely due to disturbance in the transport of reactants to the active sites. The new magnetic composite catalysts are achieved remarkable removal efficiency of 98.1 % (uncoated) and 96 % (coated) at the best mild conditions (90 °C, 12 min, 2 Hz, and 12 mm). Kinetic modeling proved that order of reaction and activation energy are significantly changed under the effect of oscillation conditions, indicating promoted mass transfer and efficiency of mixing. The results of mathematical model show low sum of squared error (SSE) values on the order of 10⁻⁵ to 10⁻⁶, revealing a high agreement between experimental and predicted data.</div></div>","PeriodicalId":10019,"journal":{"name":"Chemical Engineering Research & Design","volume":"221 ","pages":"Pages 383-399"},"PeriodicalIF":3.9,"publicationDate":"2025-08-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144878314","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":"Discharge behavior of spherical muck mixed with acrylamide polymer solution by screw conveyors in TBM tunnelling","authors":"Gi-Jun Lee ,&nbsp;Tae-Hyuk Kwon","doi":"10.1016/j.cherd.2025.08.017","DOIUrl":"10.1016/j.cherd.2025.08.017","url":null,"abstract":"<div><div>A screw conveyor is worn down while it discharges muck during TBM excavation. In order to prevent downtime caused by screw conveyor damage, polymer is injected into the TBM chamber to achieve uniform mixing with the muck, after which the polymer and muck mixture is discharged through the screw conveyor. Thus, this paper investigates the impact of polymer on the discharge rate of glass beads instead of real muck, by a screw conveyor through scaled-down screw conveyor experiments with different polymer concentrations while different rotational speeds of the screw conveyor. There is a clear tendency for the discharge rate to decrease until the polymer concentration reaches 0.5 %. However, beyond a polymer concentration of 0.5 %, the degree of decrease in the discharge rate as the polymer concentration increases is minimal. The particles coated with polymer are discharged by moving in a spiral pattern along the screw flight by the cohesion of particle-to-particle, and particle-to-screw flight in the screw conveyor. Additionally, the numerical analysis using the discrete element method (DEM) confirms that the polymer's cohesion causes the particles to move more slowly within the chamber. These findings provide valuable insights for TBM operations, specifically regarding the discharge rate of muck when employing polymers.</div></div>","PeriodicalId":10019,"journal":{"name":"Chemical Engineering Research & Design","volume":"221 ","pages":"Pages 286-294"},"PeriodicalIF":3.9,"publicationDate":"2025-08-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144841252","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":"Product design: Microfluidic paper-based analytical device","authors":"Lawrence K.Q. Yan,&nbsp;Sze Kee Tam,&nbsp;Tsz Nok Ng,&nbsp;Ka Ming Ng","doi":"10.1016/j.cherd.2025.08.014","DOIUrl":"10.1016/j.cherd.2025.08.014","url":null,"abstract":"<div><div>Microfluidic paper-based analytical devices (μPADs) have emerged as promising tools for point-of-care diagnostics due to their low cost and ease of use. However, the design of these devices often relies on empirical trial-and-error, leading to suboptimal performance. This study addresses this limitation by introducing a novel, systematic 7-step design procedure for μPADs. The methodology utilizes a State-Task Network to map processing steps and generate process alternatives, followed by zone pattern generation and dimensional optimization through imbibition process simulation. The effectiveness of this approach was demonstrated through two applications: a glucose colorimetric sensor using tear fluid and an ELISA sensor for SARS-CoV-2 detection. By integrating fluid dynamics simulation and systematic process representation, this framework enables the efficient design of μPADs without extensive experimental iterations, advancing the field of paper-based diagnostics.</div></div>","PeriodicalId":10019,"journal":{"name":"Chemical Engineering Research & Design","volume":"221 ","pages":"Pages 339-353"},"PeriodicalIF":3.9,"publicationDate":"2025-08-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144858391","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":"Metal-free graphitic carbon nitride as a promising nano-adsorbent for the efficient photocatalytic degradation of toxic dyes: Recent trends and future perspectives","authors":"Vandana Saraswat ,&nbsp;Sahil Kohli ,&nbsp;Nitish Kumar Sinha ,&nbsp;Gunjan Purohit ,&nbsp;Navjot Sandhu ,&nbsp;Suman Swami ,&nbsp;Garima Rathee ,&nbsp;Manish Rawat ,&nbsp;Neeraj Kumari","doi":"10.1016/j.cherd.2025.08.016","DOIUrl":"10.1016/j.cherd.2025.08.016","url":null,"abstract":"<div><div>Discharging untreated industrial wastewater into water bodies undoubtedly multiplies the adverse effects on the environment and human health. Over time, numerous methods have been employed to address the carcinogenicity and toxicity of dye effluents for water remediation and deactivation. Amongst available methods, the metal-free graphitic carbon nitride has proven effective as a nano-adsorbent for the photodegradation of toxic dyes. The modified g-C₃N₄ photocatalyst overcomes setbacks such as restricted surface area, poor charge separation, and lower charge mobility simply by coupling it with semiconductors, forming heterostructures, morphological modifications, exfoliation to nanosheets, and doping with metal/non-metal, among others, thereby practically making it useful for the dye degradation process. The present review aims to discuss and explore the use of modified g-C₃N₄ photocatalysts for the photodegradation process, which is a sustainable, efficient, and effective treatment for wastewater remediation processes.</div></div>","PeriodicalId":10019,"journal":{"name":"Chemical Engineering Research & Design","volume":"221 ","pages":"Pages 240-275"},"PeriodicalIF":3.9,"publicationDate":"2025-08-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144841304","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":"New hybrid reactive-extractive distillation with two reactants for separating water-free ternary azeotropic mixtures","authors":"I Gede Pandega Wiratama ,&nbsp;Zong Yang Kong ,&nbsp;Ao Yang ,&nbsp;Agus Saptoro ,&nbsp;Basil T. Wong ,&nbsp;Jaka Sunarso","doi":"10.1016/j.cherd.2025.08.010","DOIUrl":"10.1016/j.cherd.2025.08.010","url":null,"abstract":"<div><div>Research on reactive-extractive distillation for azeotropic mixtures has grown in recent years, particularly for water-containing ternary systems. However, its application to water-free ternary azeotropes remains limited, especially when all components must be recovered without conversion. Motivated to address this limitation, this research introduces a new reactive-extractive distillation system designed for this purpose. This research will contribute to broadening the scope of this intensified separation technology, enabling its use in more complex and valuable industrial mixtures. The system is applied to the separation of a methanol/methyl acetate/ethyl acetate mixture. It includes a reactant stream consisting primarily of water and glycidol, with a small amount of sulfuric acid as a catalyst. Optimization using a genetic algorithm, with total net revenue as the objective, was conducted. The results show that this configuration has a slightly higher total annual cost (2.18 %) and a lower total net revenue (10.4 %) compared to reactive distillation with pre-separation. However, unlike the reactive distillation configuration, which converts methyl acetate into propylene glycol monomethyl ether acetate, the proposed reactive-extractive distillation system enables the recovery of methyl acetate. Compared to other configurations that also retain the chemical identities of the separated components, this approach reduces total annual cost by 17.6 % and 10.8 %, and improves net revenue by 11.8 % and 11.5 % versus triple-column extractive distillation and extractive distillation with pre-separation, respectively. Thus, for separating methanol, methyl acetate, and ethyl acetate without altering their chemical form, this system is a more favorable option.</div></div>","PeriodicalId":10019,"journal":{"name":"Chemical Engineering Research & Design","volume":"221 ","pages":"Pages 369-382"},"PeriodicalIF":3.9,"publicationDate":"2025-08-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144878843","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}