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Photo-Assisted Adsorption of Rhodamine 6G Using TiO2–AC Composite: BBD Optimization and ANN Modeling TiO2-AC复合材料光辅助吸附罗丹明6G: BBD优化和ANN建模
IF 2 4区 工程技术
Chemical Engineering & Technology Pub Date : 2026-10-16 DOI: 10.1002/ceat.70331
Raj Patel, Vishal Kumar Sandhwar, Diksha Saxena, Alok Tiwari, Shivendu Saxena, Mahendra Singh Rathore, Manjeet Khare
{"title":"Photo-Assisted Adsorption of Rhodamine 6G Using TiO2–AC Composite: BBD Optimization and ANN Modeling","authors":"Raj Patel,&nbsp;Vishal Kumar Sandhwar,&nbsp;Diksha Saxena,&nbsp;Alok Tiwari,&nbsp;Shivendu Saxena,&nbsp;Mahendra Singh Rathore,&nbsp;Manjeet Khare","doi":"10.1002/ceat.70331","DOIUrl":"https://doi.org/10.1002/ceat.70331","url":null,"abstract":"<div>\u0000 \u0000 <p>This study investigated the photo-assisted adsorption optimization of rhodamine 6G (Rh6G) on a TiO<sub>2</sub>–activated carbon composite using the Box–Behnken design (BBD) and artificial neural network (ANN) models. Characterization of the composite used Fourier transform infrared (FTIR), SEM, x-ray diffraction (XRD), and BET analysis to assess its properties. The developed quadratic BBD model was highly significant with an <i>R</i><sup>2</sup> value of 0.9985 and <i>p</i> value less than 0.0001. The optimal conditions were determined to be pH 7.16, dosage 1.44 g/L and irradiation time 59.7 min and predicted a removal efficiency of 95.65%. The ANN model with an architecture of 3-10-1 provided satisfactory prediction performance results of <i>R</i><sup>2</sup> = 0.9421 and root mean square error: 1.74. Kinetics and equilibrium studies showed that Freundlich model (<i>R</i><sup>2</sup> = 0.9960) provided a better fit than the Langmuir model (<i>R</i><sup>2</sup> = 0.9914) with an approximate maximum adsorption capacity of 22.15 mg/g. Additionally, the pseudo-second-order model best describes the kinetics of adsorption.</p>\u0000 </div>","PeriodicalId":10083,"journal":{"name":"Chemical Engineering & Technology","volume":"49 10","pages":""},"PeriodicalIF":2.0,"publicationDate":"2026-10-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149206037","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Ionic Liquid–Based Catalytic Conversion of Lignocellulosic Biomass to Levulinic Acid 离子液体催化木质纤维素生物质转化为乙酰丙酸
IF 2 4区 工程技术
Chemical Engineering & Technology Pub Date : 2026-10-14 DOI: 10.1002/ceat.70326
Habib Ullah, Biswanath Saha, Santi Chuetor, Atthasit Tawai, Sunil K. Maity, Malinee Sriariyanun
{"title":"Ionic Liquid–Based Catalytic Conversion of Lignocellulosic Biomass to Levulinic Acid","authors":"Habib Ullah,&nbsp;Biswanath Saha,&nbsp;Santi Chuetor,&nbsp;Atthasit Tawai,&nbsp;Sunil K. Maity,&nbsp;Malinee Sriariyanun","doi":"10.1002/ceat.70326","DOIUrl":"https://doi.org/10.1002/ceat.70326","url":null,"abstract":"<div>\u0000 \u0000 <p>This review examines the conversion of lignocellulosic biomass to levulinic acid (LA) using ionic liquids (ILs). Their versatile physicochemical properties make ILs attractive solvents for chemical reactions. The effects of key parameters on biomass conversion to LA in IL-based media are discussed. Functionalized ILs can serve as both solvents and catalysts. The role of ILs in biomass valorization for producing fuels and value-added chemicals is considered within the framework of lignocellulosic biorefineries. The recyclability and reusability of ILs are also examined. Although ILs may be expensive and difficult to recycle, the development of low-toxicity and reusable ILs is improving their sustainability and potential for large-scale applications.</p>\u0000 </div>","PeriodicalId":10083,"journal":{"name":"Chemical Engineering & Technology","volume":"49 10","pages":""},"PeriodicalIF":2.0,"publicationDate":"2026-10-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149176987","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Can AI-Based Surrogate Models Offer Added Value for Process Optimization?—Investigations Into Practical Application Examples in the C4 Verbund 基于人工智能的代理模型能为流程优化提供附加值吗？- C4复合材料实际应用实例研究
IF 2 4区 工程技术
Chemical Engineering & Technology Pub Date : 2026-10-14 DOI: 10.1002/ceat.70291
Bastian Bruns, Maximilian Wessner, Doris Birkefeld, Niklas Paul, Robert Franke
{"title":"Can AI-Based Surrogate Models Offer Added Value for Process Optimization?—Investigations Into Practical Application Examples in the C4 Verbund","authors":"Bastian Bruns,&nbsp;Maximilian Wessner,&nbsp;Doris Birkefeld,&nbsp;Niklas Paul,&nbsp;Robert Franke","doi":"10.1002/ceat.70291","DOIUrl":"https://doi.org/10.1002/ceat.70291","url":null,"abstract":"<p>On-stream optimizing the performance of chemical processes requires accurate modeling and real-time problem-solving. Exploiting artificial neural networks as surrogate models offers a promising solution due to their capability of capturing complex correlations efficiently. Although artificial intelligence (AI)-based surrogate models are theoretically well-established and have been the subject of extensive research, practical applications in industrial settings are still rarely reported in the literature. This article therefore demonstrates the effectiveness of AI surrogate-based optimization through two real-world case studies in the field of C4 chemistry.</p>","PeriodicalId":10083,"journal":{"name":"Chemical Engineering & Technology","volume":"49 10","pages":""},"PeriodicalIF":2.0,"publicationDate":"2026-10-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/ceat.70291","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149177469","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Impact of Nozzle-to-Plate Spacing on Heat-Transfer Characteristics of an Impinging Air Jet 喷嘴-板间距对冲击气流传热特性的影响
IF 2 4区 工程技术
Chemical Engineering & Technology Pub Date : 2026-10-14 DOI: 10.1002/ceat.70328
K. Jeyajothi, M. Rengasamy, Panchamoorthy Saravanan
{"title":"Impact of Nozzle-to-Plate Spacing on Heat-Transfer Characteristics of an Impinging Air Jet","authors":"K. Jeyajothi,&nbsp;M. Rengasamy,&nbsp;Panchamoorthy Saravanan","doi":"10.1002/ceat.70328","DOIUrl":"https://doi.org/10.1002/ceat.70328","url":null,"abstract":"<div>\u0000 \u0000 <p>The present study investigates the local and average heat-transfer characteristics of a circular air-jet impinging normally on a heated mild-steel plate. The effects of nozzle diameter (<i>D</i>), nozzle-to-plate spacing (<i>H</i>/<i>D</i>), Reynolds number (<i>Re<sub>D</sub></i>), and radial distance from the stagnation point (<i>x</i>/<i>D</i>) were investigated. Experiments were conducted using nozzle diameters of 0.5–3.0 mm, nozzle-to-plate distances of 2, 4, 8 mm, Reynolds numbers ranging from 196.61 to 1661.26. Local, stagnation-point, and average Nusselt numbers were determined from the measured thermal and flow parameters. The nozzle-to-plate spacing has a significant effect on the overall heat-transfer performance, with the highest average Nusselt number obtained at <i>H</i>/<i>D</i> = 8 within the tested range. The maximum stagnation Nusselt number was obtained for the smallest nozzle-to-plate spacing, <i>H</i>/<i>D</i> = 0.67, at the highest Reynolds number. Comparison with the selected empirical correlation showed agreement within approximately ±10%.</p>\u0000 </div>","PeriodicalId":10083,"journal":{"name":"Chemical Engineering & Technology","volume":"49 10","pages":""},"PeriodicalIF":2.0,"publicationDate":"2026-10-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149177466","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Decarbonizing the Chemical Industry Through Sustainable Hydrogen Production Pathway 通过可持续制氢途径使化学工业脱碳
IF 2 4区 工程技术
Chemical Engineering & Technology Pub Date : 2026-10-14 DOI: 10.1002/ceat.70329
Mélanie Apitzsch-Delavault, Holger Jorschick, Maike-Katharina Senk, Mario Schmidt
{"title":"Decarbonizing the Chemical Industry Through Sustainable Hydrogen Production Pathway","authors":"Mélanie Apitzsch-Delavault,&nbsp;Holger Jorschick,&nbsp;Maike-Katharina Senk,&nbsp;Mario Schmidt","doi":"10.1002/ceat.70329","DOIUrl":"https://doi.org/10.1002/ceat.70329","url":null,"abstract":"<p>Hydrogen is key to decarbonizing the chemical industry. This study compares future hydrogen production scenarios for 2030 and 2045. Global warming potential from emerging technologies is quantified using prospective life cycle assessments. The Annuity Method is used to calculate the levelized cost of hydrogen. By 2030, electrolysis can reduce greenhouse gas emissions by over 50%, though costs rise drastically. By 2045, combining electrolysis with hydrogen derivatives may reduce emissions, but hydrogen costs remain high. Electricity and CO<sub>2</sub> emissions costs are major factors. Our findings indicate that a sustainable hydrogen production pathway for the chemical industry requires support from policymakers by adapting legislative frameworks and initiating global purchase agreements.</p>","PeriodicalId":10083,"journal":{"name":"Chemical Engineering & Technology","volume":"49 10","pages":""},"PeriodicalIF":2.0,"publicationDate":"2026-10-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/ceat.70329","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149177467","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Concentrating Caffeine Solutions With the Adsorption–Desorption Techniques 用吸附-解吸技术浓缩咖啡因溶液
IF 2 4区 工程技术
Chemical Engineering & Technology Pub Date : 2026-10-14 DOI: 10.1002/ceat.70319
Thalia Marchinhaki Pedro Miranda, Matheus Samponi Tucunduva Arantes, Vítor Renan da Silva
{"title":"Concentrating Caffeine Solutions With the Adsorption–Desorption Techniques","authors":"Thalia Marchinhaki Pedro Miranda,&nbsp;Matheus Samponi Tucunduva Arantes,&nbsp;Vítor Renan da Silva","doi":"10.1002/ceat.70319","DOIUrl":"https://doi.org/10.1002/ceat.70319","url":null,"abstract":"<div>\u0000 \u0000 <p>Conventional drying of caffeine extracts is energy and environmentally demanding. This work proposes a process intensification via adsorption–desorption using a high surface area activated carbon (303.0 m<sup>2</sup> g<sup>−1</sup>) obtained from yerba mate waste. Pre-concentrating the extract before the drying stage is a circular economy approach that overcomes the trade-off between extraction yield and extract dilution. Desorption in hydrated ethanol increased caffeine concentration from 25.0 to 85.9 mg L<sup>−1</sup> (concentrating factor of 343.5%). Engineering balances reveal that this integrated methodology reduces the energy required to produce 1 kg of dried caffeine by 80%, saving up to 456 GJ. This intensification translates into an economic gain of $398.09 and a 34.2 t CO<sub>2</sub> emission reduction, providing a sustainable pathway for the biomolecule industry.</p>\u0000 </div>","PeriodicalId":10083,"journal":{"name":"Chemical Engineering & Technology","volume":"49 10","pages":""},"PeriodicalIF":2.0,"publicationDate":"2026-10-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149177468","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Screening of Isothermal Plug-Flow Reactor Length for Cumene Synthesis Using Aspen HYSYS 杨木HYSYS合成异丙烯等温塞流反应器长度的筛选
IF 2 4区 工程技术
Chemical Engineering & Technology Pub Date : 2026-10-14 DOI: 10.1002/ceat.70330
Rudy Agustriyanto, Puguh Setyopratomo, Edy Purwanto, Aloisiyus Yuli Widianto
{"title":"Screening of Isothermal Plug-Flow Reactor Length for Cumene Synthesis Using Aspen HYSYS","authors":"Rudy Agustriyanto,&nbsp;Puguh Setyopratomo,&nbsp;Edy Purwanto,&nbsp;Aloisiyus Yuli Widianto","doi":"10.1002/ceat.70330","DOIUrl":"https://doi.org/10.1002/ceat.70330","url":null,"abstract":"<div>\u0000 \u0000 <p>An auditable Aspen HYSYS workflow was developed to screen isothermal plug-flow reactor length for cumene synthesis at a benzene-to-propene molar ratio of 1.2 and to test the robustness of the resulting length decision. An apparent-rate model was compared with a reversible Langmuir–Hinshelwood–Hougen–Watson (LHHW) formulation, whereas Peng–Robinson and Soave–Redlich–Kwong were assessed as property-method alternatives. The apparent-rate formulation supported a shorter candidate relative to its reference case, whereas the Han–LHHW model-form test yielded no passing length within the investigated range. Reactor-length inference was, therefore, strongly kinetic-model dependent, and the thermal and hydraulic results remain preliminary screening quantities rather than validated design predictions.</p>\u0000 </div>","PeriodicalId":10083,"journal":{"name":"Chemical Engineering & Technology","volume":"49 10","pages":""},"PeriodicalIF":2.0,"publicationDate":"2026-10-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149177470","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Analysis of Microchannel Heat Sinks With Sintered Copper Fibers for Lithium-Ion Battery Cooling 用于锂离子电池冷却的烧结铜纤维微通道散热器分析
IF 2 4区 工程技术
Chemical Engineering & Technology Pub Date : 2026-10-14 DOI: 10.1002/ceat.70327
Tingbo Hou, Jin Chen, Pengda Zeng
{"title":"Analysis of Microchannel Heat Sinks With Sintered Copper Fibers for Lithium-Ion Battery Cooling","authors":"Tingbo Hou,&nbsp;Jin Chen,&nbsp;Pengda Zeng","doi":"10.1002/ceat.70327","DOIUrl":"https://doi.org/10.1002/ceat.70327","url":null,"abstract":"<div>\u0000 \u0000 <p>Lithium-ion batteries directly power electric vehicles, yet their high heat flux density limits further advancement. Microchannel heat sinks (MHSs) can aid heat dissipation to address this issue. This study proposes a water-cooling system based on an MHS with sintered copper fibers (SCCFs) to satisfy lithium-ion battery cooling. Experiments are conducted to examine how porosity and different composite SCCF influence battery surface temperature and the MHS pressure drop. For simple SCCF, results show that the 75% porosity MHS delivers the best surface-temperature heat-dissipation performance, whereas the 70% porosity design exhibits the largest inlet-to-outlet pressure drop at a given flow rate. For composite SCCF, the 75%–80% composite-porosity MHS achieves the best cooling performance in terms of battery surface temperature, whereas the 70%–75% composite-porosity design produces the highest pressure loss between inlet and outlet under identical flow conditions.</p>\u0000 </div>","PeriodicalId":10083,"journal":{"name":"Chemical Engineering & Technology","volume":"49 10","pages":""},"PeriodicalIF":2.0,"publicationDate":"2026-10-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149177465","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Prediction of Gas Holdups in a Homogeneous Bubble Column Operated With Water–Alcohol Solutions 用水-酒精溶液操作的均相气泡柱中气含率的预测
IF 2 4区 工程技术
Chemical Engineering & Technology Pub Date : 2026-09-26 DOI: 10.1002/ceat.70323
Atefeh Mohammadi, Stoyan Nedeltchev
{"title":"Prediction of Gas Holdups in a Homogeneous Bubble Column Operated With Water–Alcohol Solutions","authors":"Atefeh Mohammadi,&nbsp;Stoyan Nedeltchev","doi":"10.1002/ceat.70323","DOIUrl":"https://doi.org/10.1002/ceat.70323","url":null,"abstract":"<div>\u0000 \u0000 <p>A physically motivated gas holdup correlation specifically tailored for alcohol–water mixtures operating under the homogeneous regime was proposed. The model combines a Langmuir-type interfacial adsorption isotherm with Traube's rule to capture the simultaneous effects of alcohol concentration and carbon chain length on the interfacial dynamics. Experimental gas holdups were measured in a homogeneous bubble column (BC) (0.1 m in ID) using various concentrations of 1-butanol, 2-pentanol, and 3-hexanol to evaluate the influence of superficial gas velocity <i>U<sub>G</sub></i> and alcohol structure on gas holdup. The results indicate that the proposed correlation effectively accounts for the suppression of bubble coalescence, which is a key mechanism for gas holdup enhancement. Based on 113 experimental points, the model was validated with an average relative error (ARE) of 3.74%. Compared to other empirical correlations, the novel model provides a more robust framework by incorporating explicit interfacial effects.</p>\u0000 </div>","PeriodicalId":10083,"journal":{"name":"Chemical Engineering & Technology","volume":"49 9","pages":""},"PeriodicalIF":2.0,"publicationDate":"2026-09-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149048548","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Surface‑Catalyzed Hybrid Nanofluid Flow Over a Stretching Cylinder and a Flat Surface: A Comparison 表面催化混合纳米流体流过拉伸圆柱体和平面：比较
IF 2 4区 工程技术
Chemical Engineering & Technology Pub Date : 2026-09-26 DOI: 10.1002/ceat.70325
Hina Gul, Muhammad Ramzan, Norah S. Barakat, Abdulkafi Mohammed Saeed, Yazeed Alkhrijah
{"title":"Surface‑Catalyzed Hybrid Nanofluid Flow Over a Stretching Cylinder and a Flat Surface: A Comparison","authors":"Hina Gul,&nbsp;Muhammad Ramzan,&nbsp;Norah S. Barakat,&nbsp;Abdulkafi Mohammed Saeed,&nbsp;Yazeed Alkhrijah","doi":"10.1002/ceat.70325","DOIUrl":"https://doi.org/10.1002/ceat.70325","url":null,"abstract":"<div>\u0000 \u0000 <p>Surface-catalyzed reactions and hybrid nanofluids are widely used to improve transport and thermal performance in engineering systems. This study examines stagnation-point flow of an alumina-silver/kerosene oil hybrid nanofluid over a stretching cylinder and compares the results with a flat surface. The model includes homogeneous-heterogeneous and surface-catalyzed reactions, Hall current, magnetic field effects, velocity and thermal slip, variable thermal conductivity, modified Fourier heat flux, and non-uniform heat generation or absorption. The governing equations are transformed into dimensionless form and solved with MATLAB bvp4c. Results show that surface curvature significantly affects velocity, temperature, and concentration distributions. Magnetic forces suppress velocity, whereas Hall current enhances it. Smaller chemical time constants strengthen reaction rates. Heat source and sink parameters produce opposite thermal responses. Slip modifies the momentum boundary layer.</p>\u0000 </div>","PeriodicalId":10083,"journal":{"name":"Chemical Engineering & Technology","volume":"49 9","pages":""},"PeriodicalIF":2.0,"publicationDate":"2026-09-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149048547","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
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