Chemical Engineering Science最新文献_第10页

Preparation of nanofiber microspheres and investigation of coalescence performance enhanced by the coupled swirling flow field 耦合旋流场对纳米纤维微球的制备及聚结性能的影响

IF 4.7 2区工程技术

Chemical Engineering Science Pub Date : 2025-05-15 DOI: 10.1016/j.ces.2025.121854

Lian Zhang, Zhaojin Lu, Likun Ma, Ningpu Liu, Zhishan Bai

{"title":"Preparation of nanofiber microspheres and investigation of coalescence performance enhanced by the coupled swirling flow field","authors":"Lian Zhang, Zhaojin Lu, Likun Ma, Ningpu Liu, Zhishan Bai","doi":"10.1016/j.ces.2025.121854","DOIUrl":"https://doi.org/10.1016/j.ces.2025.121854","url":null,"abstract":"Droplet coalescence is widely applied in industrial production processes. Based on the theory of fiber coalescence, a novel method for enhance coalescence performance by nanofiber microspheres coupled with swirling flow field was proposed in this paper. The preparation process of gelatin/PLA nanofiber microspheres was systematically studied, and the key factors influencing their morphology and particle size were explored. The nanofiber microspheres were comprehensively characterized using SEM, ATR-FTIR, DSC, and contact angle measurements, and the effects of different operating parameters on coalescence performance were analyzed. The results showed that by optimizing the crosslinking temperature and electrospraying parameters, the morphology and particle size of gelatin/PLA nanofiber microspheres can be effectively controlled. Thermal crosslinking altered the intermolecular interactions and chemical group distribution of the microspheres, and the mass ratio of gelatin to PLA significantly affected their thermal properties and wettability. As the crosslinking temperature increased, the water contact angle gradually increased, reaching a maximum of 160° at 190 °C. When the gelatin content reached 75 %, the underwater superoleophobicity enhanced (oil contact angle was 168°). Coalescence performance experiments demonstrated that the introduction of nanofiber microspheres significantly enhanced the coalescence effect of oil droplets in the swirling flow field, and the Volume average diameter of oil droplets increased from 21.52 μm to 47.88 μm, which increased by 2.2 times. The findings provide important guidance for revealing the coalescence mechanism in the swirling flow field and designing efficient coalescence-enhanced swirl separation devices.","PeriodicalId":271,"journal":{"name":"Chemical Engineering Science","volume":"141 1","pages":""},"PeriodicalIF":4.7,"publicationDate":"2025-05-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144066749","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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

Enhancing vanadium leaching from landfilled metallurgical residues through hydroxyl radical-based AOPs for sustainable production 羟基基AOPs强化冶金渣钒的可持续浸出

IF 4.1 2区工程技术

Chemical Engineering Science Pub Date : 2025-05-14 DOI: 10.1016/j.ces.2025.121821

Haiying Yin, Haoyu Li, Jun Wang, Mingyong Shu, Xuejun Zhu

{"title":"Enhancing vanadium leaching from landfilled metallurgical residues through hydroxyl radical-based AOPs for sustainable production","authors":"Haiying Yin, Haoyu Li, Jun Wang, Mingyong Shu, Xuejun Zhu","doi":"10.1016/j.ces.2025.121821","DOIUrl":"10.1016/j.ces.2025.121821","url":null,"abstract":"<div><div>With the accelerated development of strategic emerging industries, the demand for vanadium has been consistently increasing each year. To address the challenges associated with the oxidation leaching of vanadium in landfilled metallic residues, we propose a research framework utilizing cavitation/hydrogen peroxide-based advanced oxidation processes (CH-AOPs) to enhance oxidation reactions. Under optimal conditions, the leaching rate of vanadium reached 69.1 % following 15 min of CH-AOP treatment. During the CH-AOP reaction, various oxidative free radicals, including singlet oxygen (<sup>1</sup>O<sub>2</sub>), superoxide (O<sub>2</sub><sup>−</sup>), and hydroxyl radicals (<sup>•</sup>OH), interacted with H<sup>+</sup> and F<sup>−</sup>, which disrupted the cohesive structure of silicates. This disruption facilitated the release of vanadium from the interfacial region through a coordination-driven release mechanism. The results of electron paramagnetic resonance (EPR) experiments revealed that the contribution of the oxidizing free radicals to the reaction process followed this order: <sup>•</sup>OH ><sup>1</sup>O<sub>2</sub> > O<sub>2</sub><sup>−</sup>. In addition, the utilization of CH-AOPs mitigated the environmental impact of waste accumulation.</div></div>","PeriodicalId":271,"journal":{"name":"Chemical Engineering Science","volume":"315 ","pages":"Article 121821"},"PeriodicalIF":4.1,"publicationDate":"2025-05-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143946298","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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

Modeling of three-dimensional flow cell reactor with serpentine channel for nitrate electroreduction to ammonia 硝酸电还原制氨三维蛇形通道流动池反应器的建模

IF 4.1 2区工程技术

Chemical Engineering Science Pub Date : 2025-05-14 DOI: 10.1016/j.ces.2025.121845

Jianpeng Sun, Yang Lv, Haobo Chang, Honghui Ou, Yang Li, Guidong Yang

{"title":"Modeling of three-dimensional flow cell reactor with serpentine channel for nitrate electroreduction to ammonia","authors":"Jianpeng Sun, Yang Lv, Haobo Chang, Honghui Ou, Yang Li, Guidong Yang","doi":"10.1016/j.ces.2025.121845","DOIUrl":"10.1016/j.ces.2025.121845","url":null,"abstract":"<div><div>Electrocatalytic reduction of nitrate to ammonia is one of an effective way to reach the large-scale industrialization of green ammonia synthesis. However, most of the current research in this field has focused on the development of catalysts, neglecting the important role of reactor operating parameter tuning in achieving efficient ammonia synthesis. In this work, the integrated model to describe the species field and interfacial reactions in the reactor has been developed based on the electrocatalytic flow cell reactor with serpentine flow channel. Further, the effects on the mass transfer and interfacial reactions triggered by the variation of operating parameters are analyzed deeply at both experimental and theoretical computational aspects. The results indicate that the total mass transfer flux at the interface and cross-section region of the electrode and the flow channel is synergistically mediated by the convective and diffusive fluxes, and the flux values of the two fluxes show a significant order of magnitude difference.</div></div>","PeriodicalId":271,"journal":{"name":"Chemical Engineering Science","volume":"315 ","pages":"Article 121845"},"PeriodicalIF":4.1,"publicationDate":"2025-05-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143946326","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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

CuO-embedded laser-induced graphene microfluidic system for continuous, non-invasive, and cost-effective glucose monitoring in sweat 用于连续、无创、低成本的汗液葡萄糖监测的激光诱导石墨烯微流控系统

IF 4.1 2区工程技术

Chemical Engineering Science Pub Date : 2025-05-13 DOI: 10.1016/j.ces.2025.121839

Meishi Su , Xueye Chen , Lixia Yang

{"title":"CuO-embedded laser-induced graphene microfluidic system for continuous, non-invasive, and cost-effective glucose monitoring in sweat","authors":"Meishi Su , Xueye Chen , Lixia Yang","doi":"10.1016/j.ces.2025.121839","DOIUrl":"10.1016/j.ces.2025.121839","url":null,"abstract":"<div><div>This study presents a low-cost, high-sensitivity glucose sensor (COL-MC) fabricated by integrating CuO-functionalized laser-induced graphene (LIG) with a capillary-driven microfluidic chip. The novel two-step synthesis eliminates noble metals, enhancing affordability while achieving a large surface area for superior sensitivity. The sensor demonstrates a linear response (R<sup>2</sup> > 0.996) across 0.1–1.5 mmol/L glucose concentrations in sweat, with rapid detection (600 ms response time) and ultra-low detection limit (80 μmol/L, ΔI = 12.5 μA). The integrated microfluidic system employs capillary valves and serpentine channels to enable sequential fluid collection and continuous monitoring without external equipment. This wearable platform maintains stable performance for one week, advancing non-invasive health diagnostics through enzymatic-sensor-level sensitivity and scalable manufacturing. Its successful sweat glucose detection showcases significant potential for sports monitoring, personalized healthcare, and chronic disease management, representing a critical step toward practical wearable biochemical sensing technologies.</div></div>","PeriodicalId":271,"journal":{"name":"Chemical Engineering Science","volume":"314 ","pages":"Article 121839"},"PeriodicalIF":4.1,"publicationDate":"2025-05-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143940249","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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

Response of unsteady thermocapillary convection to local heating at specific depths in a thin liquid film 非定常热毛细对流对液体薄膜特定深度局部加热的响应

IF 4.1 2区工程技术

Chemical Engineering Science Pub Date : 2025-05-13 DOI: 10.1016/j.ces.2025.121827

Masaki Kudo, Keita Igarashi

{"title":"Response of unsteady thermocapillary convection to local heating at specific depths in a thin liquid film","authors":"Masaki Kudo, Keita Igarashi","doi":"10.1016/j.ces.2025.121827","DOIUrl":"10.1016/j.ces.2025.121827","url":null,"abstract":"<div><div>A hydrothermal wave (HTW) refers to a flow pattern that arises during unsteady thermocapillary convection, negatively impacting the purity of single crystals during zone melting. This study utilized active control through localized heating to reduce HTW amplitude, akin to noise cancellation. The effectiveness of this method was evaluated both experimentally and numerically by adjusting the heating depth in a thin liquid film. Silicone oil served as the test fluid, and the liquid film was rectangular in shape. In the case of linear time-periodic heating, a line-shaped heater applied a constant maximum heat input, synchronized with the HTW’s period. Experimental results indicated that HTW amplitude significantly depends on the heating depth of the liquid film. Downstream of the HTW, temperature amplitude could be reduced by up to 60%, whereas upstream, it could be amplified. In numerical simulations, HTW reduction and amplification were linked to substantial changes in the streamwise temperature gradient on the free surface, rather than to local cancellation of the temperature disturbance. Unlike the results from single-pulse heating control, the amplitude ratio showed a strong dependence on whether the heat input significantly affected the streamwise thermal and flow fields.</div></div>","PeriodicalId":271,"journal":{"name":"Chemical Engineering Science","volume":"314 ","pages":"Article 121827"},"PeriodicalIF":4.1,"publicationDate":"2025-05-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143946299","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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

Fractal analysis of the fragmentation behavior of wet agglomerates upon normal and oblique impacts with a solid plate 湿团聚体在实板正向和斜向冲击下破碎行为的分形分析

IF 4.1 2区工程技术

Chemical Engineering Science Pub Date : 2025-05-13 DOI: 10.1016/j.ces.2025.121837

Jialiang Cai, Jiliang Ma, Xiaoping Chen, Daoyin Liu, Cai Liang

引用次数: 0

Study on the effect of hydrophilic modification of polydopamine and polyacrylamide on coal characteristics and dust control 聚多巴胺和聚丙烯酰胺亲水性改性对煤特性及粉尘控制的影响研究

IF 4.1 2区工程技术

Chemical Engineering Science Pub Date : 2025-05-13 DOI: 10.1016/j.ces.2025.121841

Wen-Peng Su , Qing-Guo Yao , Xiang-Ming Hu , Jin-Di Liu , Yan-Yun Zhao , Jiao-Yun Hou

{"title":"Study on the effect of hydrophilic modification of polydopamine and polyacrylamide on coal characteristics and dust control","authors":"Wen-Peng Su , Qing-Guo Yao , Xiang-Ming Hu , Jin-Di Liu , Yan-Yun Zhao , Jiao-Yun Hou","doi":"10.1016/j.ces.2025.121841","DOIUrl":"10.1016/j.ces.2025.121841","url":null,"abstract":"<div><div>To solve the problem of hydrophobicity of coal itself, the effect of hydrophilic modification based on polydopamine and polyacrylamide (PDA/PAM) on coal dust properties and dust suppression performance was clarified. The coal quality, pyrolysis and combustion characteristics of PDA/PAM hydrophilic modified coal samples were analyzed by industrial analysis and synchronous thermal analyzer. The results showed that the range of changes in coal quality before and after modification was within 1%. The results of the synchronous thermal analyzer showed that the pyrolysis and combustion processes of the coal samples before and after the modification were similar, and the numerical values were also basically similar, which demonstrated that PDA/PAM did not have a large effect on the combustion characteristics of the coal samples. Coal samples before and after modification were sprayed with chemical dust suppressants to comparatively analyze their permeability, water retention, and wind erosion resistance. The results showed that the depth of permeability, water retention, and wind erosion resistance of the modified coal samples could be improved by at least 6.42 times, 0.72%, and 70%, respectively, compared to unmodified coal samples. Therefore, by using PDA/PAM for hydrophilic modification of coal, the wetting effect of coal seam water injection can be improved without affecting coal characteristics, and the inhibitory performance of chemical dust suppressants on coal dust can be improved.</div></div>","PeriodicalId":271,"journal":{"name":"Chemical Engineering Science","volume":"314 ","pages":"Article 121841"},"PeriodicalIF":4.1,"publicationDate":"2025-05-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143946301","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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

Machine learning for rapid quantitative stucco phase analysis in plasterboard 用于石膏板快速定量灰泥相分析的机器学习

IF 4.1 2区工程技术

Chemical Engineering Science Pub Date : 2025-05-12 DOI: 10.1016/j.ces.2025.121832

Yi Lu , Mohammad Khalkhali , Hanrui Zheng , Roger Jones , Zhixiang Chen , Qingxia Liu

{"title":"Machine learning for rapid quantitative stucco phase analysis in plasterboard","authors":"Yi Lu , Mohammad Khalkhali , Hanrui Zheng , Roger Jones , Zhixiang Chen , Qingxia Liu","doi":"10.1016/j.ces.2025.121832","DOIUrl":"10.1016/j.ces.2025.121832","url":null,"abstract":"<div><div>Stucco phase composition critically influences the mechanical properties of plasterboard, a cornerstone in modern construction. Traditional complete phase analysis (CPA) methods, while accurate, are hindered by prolonged processing times exceeding 12 h, impeding real-time quality control. This study introduces a machine learning-assisted CPA (ML-CPA) method, utilizing artificial neural networks (ANNs) to enable rapid, quantitative analysis of industrial stucco compositions. By integrating calcination weight loss profiles and hydration temperature curves—collected within 40 min—the method circumvents the need for extended conditioning periods. A dataset of 490 synthetic stucco samples, covering typical industrial phase ranges, was used to train the ANN model. The model achieved a root-mean-square error (RMSE) of 2.2 % in phase prediction and 87.7 % accuracy in free moisture detection. In particular, this approach reduces analysis time by 96 %, offering a scalable solution for online industrial quality control. By bridging the gap between laboratory accuracy and production-line efficiency, ML-CPA represents a transformative advancement in gypsum product manufacturing, with potential annual cost reduction and rapid quality control capability.</div></div>","PeriodicalId":271,"journal":{"name":"Chemical Engineering Science","volume":"314 ","pages":"Article 121832"},"PeriodicalIF":4.1,"publicationDate":"2025-05-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143940396","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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

Characterization of the lateral gas–solid flow in a circulating fluidized bed boiler using simple mathematical model based on CPFD simulation data 基于CPFD仿真数据的循环流化床锅炉内气固横向流动的简单数学模型

IF 4.1 2区工程技术

Chemical Engineering Science Pub Date : 2025-05-12 DOI: 10.1016/j.ces.2025.121773

Manxia Shang , Ling Jiang , Li Zhao , Zhong Huang , Xiwei Ke , Junfu Lyu

{"title":"Characterization of the lateral gas–solid flow in a circulating fluidized bed boiler using simple mathematical model based on CPFD simulation data","authors":"Manxia Shang , Ling Jiang , Li Zhao , Zhong Huang , Xiwei Ke , Junfu Lyu","doi":"10.1016/j.ces.2025.121773","DOIUrl":"10.1016/j.ces.2025.121773","url":null,"abstract":"<div><div>Operation safety, combustion efficiency, and pollutant emissions of circulating fluidized bed (CFB) boilers are significantly affected by the lateral gas–solid flow uniformity, which can be featured by the voidage (<em>ε</em><sub>g</sub>) as well as particle lateral movement velocity (<em>u</em><sub>p</sub>). To obtain abundant data to support quantitative analysis and modeling, the gas–solid flow details in a 170 t/h CFB boiler were numerically simulated using the computational particle fluid dynamics (CPFD) method, which has been validated by field test data. Based on the original simulation data set, simple models for the prediction of lateral profiles of <em>ε</em><sub>g</sub> and <em>u</em><sub>p</sub> were developed. In addition, both theoretical model and genetic algorithm-back propagation (GA-BP) neural network were applied to predict the lateral solids movement behavior. Results show that both two models exhibit excellent prediction accuracy with the coefficient of determination (<em>R</em><sub>2</sub>) exceeding 0.99. While the theoretical model derived from physical equations is relatively simple and has a clear physical meaning. All the simple models developed in this paper can be embedded into the overall CFB mathematical model framework, facilitating the comprehensive analysis of the operational characteristics for large-scale industrial CFB boilers.</div></div>","PeriodicalId":271,"journal":{"name":"Chemical Engineering Science","volume":"314 ","pages":"Article 121773"},"PeriodicalIF":4.1,"publicationDate":"2025-05-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143933388","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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

Electrochemical oxidative dehydrogenation of propane within solid oxide electrolysis cells 固体氧化物电解池中丙烷的电化学氧化脱氢

IF 4.1 2区工程技术

Chemical Engineering Science Pub Date : 2025-05-12 DOI: 10.1016/j.ces.2025.121835

Shihui Zhang , Maoyu Kang , Jinhuang Cai , Meiling Ran , Li Fan , Chang-An Zhou , Chao Wang , Lei Song , Kui Ma , Hairong Yue

{"title":"Electrochemical oxidative dehydrogenation of propane within solid oxide electrolysis cells","authors":"Shihui Zhang , Maoyu Kang , Jinhuang Cai , Meiling Ran , Li Fan , Chang-An Zhou , Chao Wang , Lei Song , Kui Ma , Hairong Yue","doi":"10.1016/j.ces.2025.121835","DOIUrl":"10.1016/j.ces.2025.121835","url":null,"abstract":"<div><div>The oxidative propane dehydrogenation (OPDH) to propylene represents a promising and viable route for the growing demand of olefin production. Poor propylene products selectivity, however, is a severe challenge due to the easy deep oxidation. Herein, we proposed a conceptually novel process of electrochemical CO<sub>2</sub>-OPDH based on solid oxide electrolysis cells (SOECs), which is expected to efficiently produce propylene simultaneously utilizing CO<sub>2</sub>. By regulating the migration behavior of oxygen species from cathode to anode through current, an 80.7 % low-carbon olefins selectivity was achieved, and the propane conversion was increased by 17 times compared to open circuit conditions. Intrinsically, the current driven lattice oxygen on-line restoration mechanism was proposed, that the electrolytic O<sup>2−</sup> migrates to anode surface driven by the current to effectively restore the lattice oxygen and maintains the active structure, leading to improved OPDH performance and suppressing coking. This work provides a new electrochemical approach for selective oxidation reactions.</div></div>","PeriodicalId":271,"journal":{"name":"Chemical Engineering Science","volume":"315 ","pages":"Article 121835"},"PeriodicalIF":4.1,"publicationDate":"2025-05-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143933389","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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