Chemical Engineering Research & Design最新文献

{"title":"Surfactant-mediated transport of copper oxide nanoparticles in porous media: Effects of electrolytes, phosphate and organic matter","authors":"Yujue Wang,&nbsp;Ming Wu,&nbsp;Yanru Hao,&nbsp;Hui Li,&nbsp;Cehui Mo","doi":"10.1016/j.cherd.2025.04.003","DOIUrl":"10.1016/j.cherd.2025.04.003","url":null,"abstract":"<div><div>This study investigates the transport behavior of copper oxide nanoparticles (nCuO) in saturated porous media mediated by the cationic surfactant cetyltrimethylammonium bromide (CTAB) and the anionic surfactant sodium dodecyl sulfate (SDS). The effects of ion types and concentrations, humic acid (HA), and phosphate on nCuO mobility were systematically examined. Under CTAB conditions, low ion concentrations enhanced nCuO transport by reducing interfacial tension (IFT), with calcium ions (Ca^2 +) exhibiting a stronger promotive effect than sodium ions (Na⁺). However, higher ion concentrations subsequently inhibited nCuO transport. The addition of HA and phosphate promoted nCuO deposition by diminishing the electrostatic repulsion between nCuO and quartz sand. In SDS-mediated systems, increasing ion concentrations suppressed nCuO transport and exhibited \"ripening\" phenomena. The introduction of HA in SDS systems initially inhibited and then enhanced nCuO transport, with breakthrough curves under inhibitory conditions also showing \"ripening\". Notably, phosphate enhanced nCuO transport by increasing the electronegativity of quartz sand, with the promotive effect being more pronounced at low phosphate concentrations compared to high concentrations. Overall, the type of surfactant significantly influences the mobility of nCuO under various environmental conditions. These findings advance the understanding of nanoparticle behavior in environmental systems and provide valuable insights for the development of strategies in environmental protection and pollution remediation.</div></div>","PeriodicalId":10019,"journal":{"name":"Chemical Engineering Research & Design","volume":"217 ","pages":"Pages 283-294"},"PeriodicalIF":3.7,"publicationDate":"2025-04-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143816850","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":"Energy balance error compensated extended-state Kalman filter-based model predictive control of a 300 MW boiler-turbine unit","authors":"Mengmeng Guo ,&nbsp;Yongsheng Hao ,&nbsp;Guoqing Chen ,&nbsp;Kwang Y. Lee ,&nbsp;Li Sun","doi":"10.1016/j.cherd.2025.04.002","DOIUrl":"10.1016/j.cherd.2025.04.002","url":null,"abstract":"<div><div>Coal-fired power plants are crucial for grid stability due to their dispatchability in response to the intermittency of renewable power generation. However, the frequent and rapid load variations pose great challenges to the flexibility and stability of operational control systems. To this end, this study proposes a novel energy balance error compensated extended-state Kalman filter-model predictive control (EBEC-ESKF-MPC) strategy for boiler-turbine units, inspired by the direct energy balance (DEB) framework. A linearized state-space model serves as the nominal model for MPC design, while an ESKF incorporating energy balance error compensation ensures accurate state estimates. The non-dominated sorting genetic algorithm II is applied for the multi-objective optimization of key weights. The wide-range simulations demonstrate that the proposed strategy achieves a significant improves pressure control performance, outperforming DEB-PI, DEB-active disturbance rejection control (ADRC), and ESKF-MPC by 58.9 %, 31.5 %, and 10.2 % respectively. Additionally, the EBEC-ESKF-MPC strategy achieves the shortest settling time and minimal control deviation under uncertain disturbance scenarios. Moreover, the proposed strategy's ability to reduce total absolute energy deviations by 92.3 %, 78.9 %, and 37.8 % compared to DEB-PI, DEB-ADRC, and ESKF-MPC, respectively, highlighting its superior disturbance rejection, control precision, and energy balance capabilities.</div></div>","PeriodicalId":10019,"journal":{"name":"Chemical Engineering Research & Design","volume":"217 ","pages":"Pages 328-341"},"PeriodicalIF":3.7,"publicationDate":"2025-04-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143825438","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":"Study on liquid film velocity and flow pattern transition in gas-liquid cylindrical cyclone (GLCC)","authors":"Yuhang Zhou ,&nbsp;Jianyi Chen ,&nbsp;Ziqing Li ,&nbsp;Ruikang Wang ,&nbsp;Sen Li","doi":"10.1016/j.cherd.2025.03.035","DOIUrl":"10.1016/j.cherd.2025.03.035","url":null,"abstract":"<div><div>The gas-liquid cylindrical cyclone (GLCC) is a compact and efficient oil and gas separation device. The separation performance of GLCC is directly related to the flow pattern of its USLF, and the velocity distribution and determination of the flow pattern transition of USLF depends on the accurate calculation of the wall-friction and gas-liquid interfacial factors. Air and water were used as the media and the tangential velocity and axial velocity distribution of the USLF measured using an image velocimetry system. The liquid film swirl angle was obtained and the liquid-film velocity distribution correlation established. A semi-empirical formula for wall friction and gas-liquid interfacial factors, represented by the liquid film swirl angle, were obtained. The criterion for flow-pattern transition was established and a generalized correlation formula for flow-pattern transition between annular and churn flows was proposed. The results provided new insights for further understanding of USLF and flow-pattern transition.</div></div>","PeriodicalId":10019,"journal":{"name":"Chemical Engineering Research & Design","volume":"217 ","pages":"Pages 267-282"},"PeriodicalIF":3.7,"publicationDate":"2025-04-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143807282","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":"Polysulfone substrates modified with polyethylene glycol-grafted graphene oxide nanosheets for enhanced forward osmosis performance","authors":"Taranom Ghanbari ,&nbsp;Alireza Sharif ,&nbsp;Mohammad Karimi","doi":"10.1016/j.cherd.2025.03.032","DOIUrl":"10.1016/j.cherd.2025.03.032","url":null,"abstract":"<div><div>Tuning the physico-chemical properties and morphology of the substrate layer is of great importance for designing thin film composite membranes (TFC) with high performance in the forward osmosis (FO) process. Here, polyethylene glycol grafted graphene oxide (PEG-g-GO) nanosheets were added to the casting solution of a porous polysulfone (PSf) substrate, and the characteristics of the resulting substrate prepared by the non-solvent-induced phase separation (NIPS) process were investigated. Compared to the pristine PSf substrate, the PEG-g- GO loaded substrate showed higher surface hydrophilicity, more porous and highly connected finger-like structure and thinner dense skin layer. Due to these differences, the selective polyamide layer interfacially polymerized atop the modified substrate was thinner and smoother compared to that polymerized atop the pristine substrate. The FO performance tests conducted on the prepared TFC membranes showed that the water flux increased, while the specific selectivity (as the reverse salt flux, J_S, to water flux, J_W, ratio) and structural parameter (S) decreased when the modified substrate was used for TFC fabrication. Furthermore, the molecular weight (Mw) of PEG grafted onto GO affected the properties of the substrate and thus the performance of the final FO-TFC. PEG with the highest Mw investigated (6000 g/mol) resulted in a 40 % and 23 % reduction in the parameter S and J_S/J_W, respectively, compared to TFC with the bare substrate. These improvements were greater than those obtained using PEG with lower Mw, 1500 and 600 g/mol, respectively.</div></div>","PeriodicalId":10019,"journal":{"name":"Chemical Engineering Research & Design","volume":"217 ","pages":"Pages 223-234"},"PeriodicalIF":3.7,"publicationDate":"2025-04-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143800524","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":"Study of the ammonia oxidation process on platinum gauze and catalyst degradation phenomenon – CFD simulation with surface reaction kinetics and catalyst entrained particles motion and deposition tracking","authors":"Mariusz Tyrański ,&nbsp;Jakub Michał Bujalski ,&nbsp;Wojciech Orciuch ,&nbsp;Łukasz Makowski","doi":"10.1016/j.cherd.2025.04.001","DOIUrl":"10.1016/j.cherd.2025.04.001","url":null,"abstract":"<div><div>This study is focused on the Computational Fluid Dynamics (CFD) simulation of the Ostwald process using implemented surface microkinetics of ammonia oxidation and applying this model to investigate the catalyst gauze’s degradation issue, a severe problem occurring due to the harsh process conditions. The results allow an in-depth investigation into the surface reaction rates or product selectivity and their gradients on the subsequent layers for a three-layer platinum woven gauze. The authors investigated the effects of critical parameters, such as contact time and gauze temperatures, on product efficiencies, concentrations and surface parameters. The simulation was validated using the experimental data from the literature. The obtained model was used to compute entrained particle trajectories, the efficiency of the recapture of the catalyst gauze’s subsequent layers and identify the spots of the platinum deposition for different catalyst gauze geometries, contact times and entrained particle sizes. Based on the results and literature reports, the authors estimated the spots of the increased platinum release. The discrete phase model (DPM) was used to track the motion of entrained particles, and the accretion model was used to locate the deposition areas. The obtained results agree with the experimentally observed deposition trends described in the literature.</div></div>","PeriodicalId":10019,"journal":{"name":"Chemical Engineering Research & Design","volume":"217 ","pages":"Pages 416-439"},"PeriodicalIF":3.7,"publicationDate":"2025-04-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143835219","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":"Particle mixing and segregation behavior in continuous blenders based on DEM method","authors":"Jiacheng Lu ,&nbsp;Yibiao Chen ,&nbsp;Hongming Zhou ,&nbsp;Gulite Wang ,&nbsp;Yangyang Jiang ,&nbsp;Lixiang Lyu ,&nbsp;Wuchao Li ,&nbsp;Zheng Fang","doi":"10.1016/j.cherd.2025.03.034","DOIUrl":"10.1016/j.cherd.2025.03.034","url":null,"abstract":"<div><div>As part of the Process Analytical Technology (PAT) initiative, continuous mixing enables more efficient and automated powder blending. However, there remains a limited understanding of the intricate particle behaviors throughout the entire continuous mixing process. In this study, the Discrete Element Method (DEM) is applied to analyze the particle mixing flow and segregation behavior during the mixing process. The particle collision results are used to determine differences in particle motion. The mixture's relative standard deviation (RSD) is used to characterize the mixing effectiveness. Powder velocities and residence quantities are used to characterize the particle motion behavior. The overall hold-up mass and average residence time decrease with increasing impeller speed, while the number of blade passes exhibits the opposite trend. Interestingly, particles do not reach the maximum average central variance at the highest shaft speed. These results indicate that the entire mixing process is also worth attention.</div></div>","PeriodicalId":10019,"journal":{"name":"Chemical Engineering Research & Design","volume":"217 ","pages":"Pages 162-174"},"PeriodicalIF":3.7,"publicationDate":"2025-04-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143776760","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":"Analytical solution to the discretized population balance equation for pure breakage with application to kernel identification","authors":"Prem K.R. Podupu ,&nbsp;Vamsi V. Gande ,&nbsp;Ragavendra Hari ,&nbsp;Akshay Korde ,&nbsp;Manish S. Kelkar ,&nbsp;Nandkishor K. Nere ,&nbsp;Meenesh R. Singh","doi":"10.1016/j.cherd.2025.03.019","DOIUrl":"10.1016/j.cherd.2025.03.019","url":null,"abstract":"<div><div>Particle breakage is a key process in industries such as pharmaceuticals, mining, and materials processing, where controlling particle size distribution is critical for optimizing product properties. The evolution of particle size during breakage is often described by the population balance equation (PBE) with mechanistic and empirical models for breakage. While numerical methods are commonly used to solve PBE, they are computationally intensive and prone to instabilities, and existing analytical solutions are typically limited to specific kernel forms. In this work, we present an analytical solution for discretized PBEs applicable to both linear and nonlinear breakage kernels. Our method utilizes Sylvester’s expansion to solve the PBE and compute eigenvectors of the milling matrix, enabling generalized, efficient, and accurate predictions of particle size distributions. Verification against Ziff and McGrady’s analytical solution for specific kernels demonstrated excellent agreement, while experimental data from IKA Magic Lab® and Quadro Ytron® wet milling processes confirmed the model’s kernel identification capabilities, robustness, and versatility across different operating conditions. By incorporating Austin et al.'s breakage kernels, the model effectively captures the influence of milling parameters on particle fragmentation. This analytical solution offers a robust framework for understanding and optimizing breakage processes across diverse systems. Its adaptability to various kernels and minimal computational complexity makes it a valuable tool for both researchers and process development engineers. The insights gained through this work can guide the design of optimal particle processing technologies, with potential applications extending beyond milling to include grinding and other comminution systems.</div></div>","PeriodicalId":10019,"journal":{"name":"Chemical Engineering Research & Design","volume":"217 ","pages":"Pages 295-303"},"PeriodicalIF":3.7,"publicationDate":"2025-04-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143820621","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":"Customizing the structure and performance of thin-film composite nanofiltration membranes for water treatment with 1D nanomaterial interlayers: A review","authors":"Ruohan Liang ,&nbsp;Jiyu Song ,&nbsp;Yizhen Wang ,&nbsp;Junxia Liu ,&nbsp;Yan Feng ,&nbsp;Dongsheng Zhao ,&nbsp;Guicai Liu","doi":"10.1016/j.cherd.2025.03.039","DOIUrl":"10.1016/j.cherd.2025.03.039","url":null,"abstract":"<div><div>Thin-film composite (TFC) membranes made from polyamide are considered the benchmark for nanofiltration (NF) technologies used in water treatment. However, traditional TFC NF membranes face challenges such as the inevitable trade-off between permeability and selectivity, as well as membrane fouling. A potential solution is to introduce a one-dimensional nanomaterial interlayer (1D-NIL) between the microporous substrate and the polyamide layers to modulate the interfacial polymerization and optimize the microstructure and performance of the resulting NF membranes. This review critically summarizes recent developments in TFC NF membranes with 1D-NILs for water treatment. Common 1D nanomaterials used in NF membrane interlayers and interlayer preparation methods are first discussed on the basis of the available literature. The mechanisms influencing the structure and performance of NF membranes produced with these 1D-NILs are then systematically reviewed. Finally, a perspective on the development of 1D-NIL NF membranes is presented, with an emphasis on key future research directions to advance these membranes beyond the current technological level. This review provides valuable resources for the strategic design of advanced NF membranes utilizing 1D-NILs for water treatment applications.</div></div>","PeriodicalId":10019,"journal":{"name":"Chemical Engineering Research & Design","volume":"217 ","pages":"Pages 206-222"},"PeriodicalIF":3.7,"publicationDate":"2025-04-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143792731","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 study of volatile iodine retention by pool scrubbing: Influence of operating conditions","authors":"Fouzia Djeriouat ,&nbsp;Mohamad Farhat ,&nbsp;Catherine Marchetto ,&nbsp;Maxime Chinaud ,&nbsp;Olivier Vauquelin ,&nbsp;Jean Denis ,&nbsp;Laurent Cantrel ,&nbsp;Philippe Nerisson","doi":"10.1016/j.cherd.2025.03.030","DOIUrl":"10.1016/j.cherd.2025.03.030","url":null,"abstract":"<div><div>In the event of a nuclear power plant accident, iodine is one of the radionuclides of the greatest issue. Present in various chemical forms, the mitigation of outside releases is a crucial aspect of nuclear safety protection measures during a nuclear accident as these airborne iodine releases pose a significant radiological risk to the exposed population in the short term. Pool scrubbing device is one mean of mitigation. Tests were conducted on to study the scrubbing efficiency in a water pool of volatile iodine species: methyl iodide (CH₃I) and molecular iodine (I₂). This allows us to determine a Decontamination Factor (DF) for each gaseous species, characterizing its trapping capability. The influence of various physical and chemical factors on the trapping was investigated, the experimental parameters were the gas flow regime, pool’s pH, and pool’s temperature. The retention of CH₃I by pool scrubbing was unaffected by the flow regime and pool chemical conditions in contrast to I₂. Pool scrubbing appears to be an efficient mean to mitigate I₂ releases for bubbly regime and alkaline conditions whereas for CH₃I, due to its too high volatility, the retention efficiency remains quite low and cannot be considered as an effective mitigation mean.</div></div>","PeriodicalId":10019,"journal":{"name":"Chemical Engineering Research & Design","volume":"217 ","pages":"Pages 318-326"},"PeriodicalIF":3.7,"publicationDate":"2025-04-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143820619","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":"Coking mechanism and abatement strategy of used lubricating oil resource regenerative utilization","authors":"Peng Jiang ,&nbsp;Haiyu Yang ,&nbsp;Jimei Luan ,&nbsp;Ming Wang","doi":"10.1016/j.cherd.2025.03.038","DOIUrl":"10.1016/j.cherd.2025.03.038","url":null,"abstract":"<div><div>Coking has a major impact on equipment fouling, catalyst deactivation and pipe clogging, in biomass utilization, petroleum refinery processes and other related fields. Therefore, coking is one of important aspects of research in these fields and generates mechanism as intricate as the phenomenon itself. Complexity is essentially coupled to the mechanisms and promote the utilization of renewable resources can be better guided if fully understanding this complexity. In this study, the evolution of gas-liquid phase coke structures of used lubricating oil demetallization pretreatment at temperatures below 400 °C was first investigated. Then, the main influencing factors and mechanism of used lubricating oil pyrolysis pretreatment gas-phase coking are further presented. Finally, a method for preventing coking is proposed and verified. Our results show that metal catalysts promote the formation of liquid-phase coke, where the coke formed was mainly filamentous. And gas-phase reactions at the early stage of coke formation were mainly attributed to HCl-catalyzed Diels-Alder type reaction of olefins produced by used lubricating oil thermal cracking. The planar expansion of the polycyclic compound generated by the Diels–Alder reaction in the sheet was accompanied by partial dehydrogenation, and finally, three-dimensional particles are formed by the vertical connection between these planes. Starting with simple aromatics, dehydrogenation and condensation reactions occurred to produce soot particles or tar droplets that could be liquid or even solid in a thermal cracking reactor. They adhered to the surface and were incorporated in the coke layer because the outer surface of the droplets was not completely dehydrogenated. Next, dehydrogenation reactions were possible, and the coke layer could grow further. Meanwhile, coke contains Cl, which further catalyzed the cracking leading to the formation of autocatalytic coke. On the other hand, the condensation of high boiling products on the gas deposition sheet and eventual dehydrogenation to form coke were the secondary causes. Based on this research, we established a pilot plant with an annual output of 100 t/ year, which has achieved continuous and stable operation for 624 h. And the pretreatment process has been verified by the hydrogenation process. It also has great theoretical guiding significance for gas-phase coking of biomass, bio-oil pyrolysis and pyrolysis gas-phase coking of other substances. Significantly, our results provide reliable and effective models relating to ULO regenerative pretreatment, which should be helpful in future ULO hydrorefining and resource utilization.</div></div>","PeriodicalId":10019,"journal":{"name":"Chemical Engineering Research & Design","volume":"217 ","pages":"Pages 490-501"},"PeriodicalIF":3.7,"publicationDate":"2025-04-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143844177","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}