Korean Journal of Chemical Engineering最新文献_第9页

PVDF/CuO–VS4 Dual-Layer Hollow Fiber Photocatalytic Membrane for Bisphenol A Removal with Energy Storage Capability 具有储能功能的用于去除双酚 A 的 PVDF/CuO-VS4 双层中空纤维光催化膜

IF 2.9 4区工程技术

Korean Journal of Chemical Engineering Pub Date : 2025-03-17 DOI: 10.1007/s11814-025-00430-3

Hazirah Syahirah Zakria, Mohd Hafiz Dzarfan Othman, Suhaila Borhamdin, Nurul Jannah Ismail, Mukhlis A. Rahman, Juhana Jaafar, Mohd Hafiz Puteh, Norbaya Hashim, Nirmala Devi AP Kerisnan, Nasehir Khan E. M. Yahaya, Alias Idris, Tonni Agustiono Kurniawan

{"title":"PVDF/CuO–VS4 Dual-Layer Hollow Fiber Photocatalytic Membrane for Bisphenol A Removal with Energy Storage Capability","authors":"Hazirah Syahirah Zakria, Mohd Hafiz Dzarfan Othman, Suhaila Borhamdin, Nurul Jannah Ismail, Mukhlis A. Rahman, Juhana Jaafar, Mohd Hafiz Puteh, Norbaya Hashim, Nirmala Devi AP Kerisnan, Nasehir Khan E. M. Yahaya, Alias Idris, Tonni Agustiono Kurniawan","doi":"10.1007/s11814-025-00430-3","DOIUrl":"10.1007/s11814-025-00430-3","url":null,"abstract":"<div><p>Bisphenol A (BPA) is toxic and its outflow into the water bodies raised concern, and suitable water treatment is needed. Photocatalysis is a promising method nowadays to move towards green technology. The novel photocatalytic dual-layer hollow-fiber membrane (DLHF) combines copper (II) oxide–vanadium tetrasulfide (CuO–VS<sub>4</sub>) with a polyvinylidene fluoride (PVDF) membrane for efficient BPA removal both day and night. CuO and CuO–VS<sub>4</sub> were synthesized using sol–gel and hydrothermal methods, respectively, with varying hydrothermal times. PVDF/CuO–VS<sub>4</sub> DLHF photocatalytic membrane was fabricated using co-extrusion method by varying the ratio of CuO–VS<sub>4</sub>. Powdered catalyst and membranes were characterized using FESEM-EDX, XRD and AFM. CuO was synthesized at room temperature, while CuO–VS<sub>4</sub> synthesized at 12 h hydrothermal time was chosen to be deposited into PVDF membrane matrix. The 0.25 PVDF/CuO–VS<sub>4</sub> DLHF shows a uniform CuO–VS<sub>4</sub> distribution, achieving 70.24% photodegradation and 73.19% BPA rejection, with 74.05% regeneration efficiency after three cycles. Energy storage capability shows 60.0% of BPA successfully rejected after 120 min of analysis, and thus, PVDF/CuO–VS<sub>4</sub> DLHF is a preferential 3-in-1 function photocatalytic membrane for BPA degradation and rejection as well as a potential energy storage material for wastewater treatment with or without light.</p></div>","PeriodicalId":684,"journal":{"name":"Korean Journal of Chemical Engineering","volume":"42 5","pages":"1055 - 1070"},"PeriodicalIF":2.9,"publicationDate":"2025-03-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143852478","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

Kinetics, Thermodynamics, and Solvent Polarity Effects of Ultrasound-Negative Pressure Cavitation Fractional Precipitation of (+)-Dihydromyricetin 超声波负压空化分级沉淀(+)-二氢杨梅素的动力学、热力学和溶剂极性效应

IF 3.2 4区工程技术

Korean Journal of Chemical Engineering Pub Date : 2025-03-17 DOI: 10.1007/s11814-025-00445-w

Chaeyeon Kim, Jin-Hyun Kim

引用次数: 0

Valorization of Corncob as a Sustainable Feedstock for Lactic Acid Production via Improved Biomass-to-Glucose Conversion Based on KOH Pretreatment 基于KOH预处理改进生物质-葡萄糖转化玉米芯作为可持续乳酸生产原料的价值

IF 2.9 4区工程技术

Korean Journal of Chemical Engineering Pub Date : 2025-03-16 DOI: 10.1007/s11814-025-00443-y

Chan Kyum Kim, Jeongho Lee, Seunghee Kim, Kang Hyun Lee, Ja Hyun Lee, Hah Young Yoo, Chun-Woong Park

{"title":"Valorization of Corncob as a Sustainable Feedstock for Lactic Acid Production via Improved Biomass-to-Glucose Conversion Based on KOH Pretreatment","authors":"Chan Kyum Kim, Jeongho Lee, Seunghee Kim, Kang Hyun Lee, Ja Hyun Lee, Hah Young Yoo, Chun-Woong Park","doi":"10.1007/s11814-025-00443-y","DOIUrl":"10.1007/s11814-025-00443-y","url":null,"abstract":"<div><p>Biorefining of food waste has gained increasing attention as a sustainable approach for producing platform chemicals such as lactic acid. In this study, corncob (CC), a byproduct of corn processing, was utilized as a feedstock for biorefining through biomass hydrolysis and lactic acid fermentation. Due to the low enzymatic digestibility of raw CC caused by its lignin content, KOH pretreatment was conducted prior to enzymatic hydrolysis to enhance glucose recovery. Among the tested KOH concentrations (1–5%), 3% KOH pretreatment yielded the highest biomass-to-glucose conversion (25.38%), with a solid recovery (SR) of 47.60%, glucan content (GC) of 57.23%, and enzymatic digestibility (ED) of 84.70%. These values represent a significant improvement compared to raw CC (biomass-to-glucose conversion: 7.97%; SR: 100%; GC: 35.22%; ED: 20.57%). Compositional and physicochemical analyses confirmed that 3% KOH-pretreated CC (3%KpCC) had a reduced lignin content (11.69%) compared to raw CC (20.48%), along with irregular cracks and crevices that improved enzymatic digestibility via easier enzyme access. Fermentation of <i>Lacticaseibacillus rhamnosus</i> with the hydrolysate as an alternative carbon source for 24 h was found to produce about 9.89 g/L lactic acid and 98.9% conversion, similar to the control medium (about 9.81 g/L production and 98.1% conversion). Overall, the mass balance analysis revealed a 3.2-fold increase in lactic acid production (251 g/kg biomass) with the 3% KOH pretreatment process compared to the control. This study demonstrates a significantly improved biorefinery strategy that effectively contributes to both CC waste management and value-added chemical production.</p></div>","PeriodicalId":684,"journal":{"name":"Korean Journal of Chemical Engineering","volume":"42 5","pages":"1109 - 1116"},"PeriodicalIF":2.9,"publicationDate":"2025-03-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143852538","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

Deep Reinforcement Learning-Based Optimization Framework with Continuous Action Space for LNG Liquefaction Processes 基于深度强化学习的LNG液化过程连续动作空间优化框架

IF 3.2 4区工程技术

Korean Journal of Chemical Engineering Pub Date : 2025-03-15 DOI: 10.1007/s11814-025-00428-x

Jieun Lee, Kyungtae Park

{"title":"Deep Reinforcement Learning-Based Optimization Framework with Continuous Action Space for LNG Liquefaction Processes","authors":"Jieun Lee, Kyungtae Park","doi":"10.1007/s11814-025-00428-x","DOIUrl":"10.1007/s11814-025-00428-x","url":null,"abstract":"<div><p>Recently, the application of reinforcement learning in process systems engineering has attracted significant attention recently. However, the optimization of chemical processes using this approach faces various challenges related to performance and stability. This paper presents a process optimization framework using a continuous advantage actor–critic that is modified from the existing advantage actor–critic algorithm by incorporating a normal distribution for action sampling in a continuous space. The proposed reinforcement learning-based optimization framework was found to outperform the conventional method in optimizing a single mixed refrigerant process with 10 variables, achieving a lower specific energy consumption value of 0.294 kWh/kg compared to the value of 0.307 kWh/kg obtained using the genetic algorithm. Parametric studies performed into the hyperparameters of the continuous advantage actor-critic algorithm, including the maximum episodes, learning rate, maximum action value, and structures of the neural networks, are presented to investigate their impacts on the optimization performance. The optimal specific energy consumption, namely 0.287 kWh/kg, was achieved by varying the learning rate from the base case to 0.00005. These results demonstrate that reinforcement learning can be effectively applied to the optimization of chemical processes.</p></div>","PeriodicalId":684,"journal":{"name":"Korean Journal of Chemical Engineering","volume":"42 8","pages":"1613 - 1628"},"PeriodicalIF":3.2,"publicationDate":"2025-03-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145166306","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

Capturing a Specific Component from Mixed (SF6 + N2) Gasses Using Crystal Structure Change of Hydroquinone 利用对苯二酚的晶体结构变化从混合（SF6 + N2）气体中捕获特定组分

IF 3.2 4区工程技术

Korean Journal of Chemical Engineering Pub Date : 2025-03-14 DOI: 10.1007/s11814-025-00440-1

Sang Jun Yoon, Ji-Ho Yoon, Jong-Won Lee

{"title":"Capturing a Specific Component from Mixed (SF6 + N2) Gasses Using Crystal Structure Change of Hydroquinone","authors":"Sang Jun Yoon, Ji-Ho Yoon, Jong-Won Lee","doi":"10.1007/s11814-025-00440-1","DOIUrl":"10.1007/s11814-025-00440-1","url":null,"abstract":"<div><p>During the reaction of the solid and the gas phases, solid hydroquinone (HQ) changes its crystal structure while a specific component from mixed gasses is captured into the changed HQ crystal structure. To investigate the partitioning of mixed gasses in the solid phase, the (SF<sub>6</sub> + N<sub>2</sub>) gas mixtures having various compositions are used as a gas phase reactant at two experimental pressures, 2.0 and 4.0 MPa. In addition, spectroscopic measurements are also performed to obtain qualitative and quantitative information on partitioning of each gas component. From a series of experimental results, it was found that N<sub>2</sub> is exclusively accommodated in the gas-loaded HQ crystal structure, while SF<sub>6</sub> is excluded from the solid crystal structure due to its large molecular size. However, because such partitioning requires high partial pressures of N<sub>2</sub> in the gas mixtures (higher N<sub>2</sub> composition at a given pressure or higher experimental pressure at a given gas composition), N<sub>2</sub> capture in the HQ crystal structure is only observed at 80-mol% N<sub>2</sub> composition at the experimental pressure of 4.0 MPa among various gas compositions. The captured amount of N<sub>2</sub> corresponds to 13.7 L at the STP condition per 1 kg of HQ. Although N<sub>2</sub> is found to be selectively separated from the binary gas mixtures, further investigations focusing mainly on the reduction of the experimental pressure and the increase of captured N<sub>2</sub> amount are necessary to apply to industrial fields.</p></div>","PeriodicalId":684,"journal":{"name":"Korean Journal of Chemical Engineering","volume":"42 12","pages":"2911 - 2917"},"PeriodicalIF":3.2,"publicationDate":"2025-03-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145181478","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

Investigation on SLM’s Stability via the Mutual Solubility of Different Water pH + TOA + Organic Solvents and DFT Calculation 通过不同水pH + TOA +有机溶剂的相互溶解度和DFT计算研究SLM的稳定性

IF 2.9 4区工程技术

Korean Journal of Chemical Engineering Pub Date : 2025-03-14 DOI: 10.1007/s11814-025-00435-y

Thanaporn Arunchai, Vanee Mohdee, Natthapol Triwongsa, Ura Pancharoen, Kasidit Nootong, Wikorn Punyain

{"title":"Investigation on SLM’s Stability via the Mutual Solubility of Different Water pH + TOA + Organic Solvents and DFT Calculation","authors":"Thanaporn Arunchai, Vanee Mohdee, Natthapol Triwongsa, Ura Pancharoen, Kasidit Nootong, Wikorn Punyain","doi":"10.1007/s11814-025-00435-y","DOIUrl":"10.1007/s11814-025-00435-y","url":null,"abstract":"<div><p>This work presents the influence of water pH on the stability of supported liquid membrane (SLM) regards its mutual solubility. For the solubility experiments, both liquid–liquid binary and ternary systems are studied in different water pH (2.0, 7.0, and 13.0) at 303.15 K and atmospheric pressure. In the organic phase, tri-<i>n</i>-octylamine (TOA) combined with various organic solvents is used; adjusted pH water is used in the aqueous phase. Results demonstrate that, in the organic phase, basic water reveals the least solubility. Data correlation utilizing the NRTL model fitted in well with the experimental data as validated by < 5% RMSD. For the interaction molecular study of the involved molecules, density function theory (DFT) is carried out. Application of the hollow fiber-supported liquid membrane (HFSLM) shows that stability is affected by the solubility of different pH water. It is noted that the basic-based feed provides the longest stability, which is consistent with the solubility results.</p></div>","PeriodicalId":684,"journal":{"name":"Korean Journal of Chemical Engineering","volume":"42 5","pages":"1117 - 1135"},"PeriodicalIF":2.9,"publicationDate":"2025-03-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143852540","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

Enhanced Porosity of Cellulose Acetate Membranes: A Comparative Study of Gas Pressure and Water Pressure Processes 提高醋酸纤维素膜的孔隙率：气压和水压过程的比较研究

IF 3.2 4区工程技术

Korean Journal of Chemical Engineering Pub Date : 2025-03-14 DOI: 10.1007/s11814-025-00441-0

Sang Wook Kang

{"title":"Enhanced Porosity of Cellulose Acetate Membranes: A Comparative Study of Gas Pressure and Water Pressure Processes","authors":"Sang Wook Kang","doi":"10.1007/s11814-025-00441-0","DOIUrl":"10.1007/s11814-025-00441-0","url":null,"abstract":"<div><p>The rapid evolution of the porous materials industry has underscored the crucial need for advanced materials capable of enhancing the performance, safety, and environmental sustainability. This study focuses on the development of novel porous cellulose acetate (CA) for various applications, employing gas pressure methods to optimize properties such as porosity, thermal stability, and electrolyte wettability. Through a comprehensive analysis of the effects of various additives (glycerin, lactic acid, and glycolic acid) on the fabrication and performance of CA, this research aims to address the inherent limitations of traditional porous materials. Our experimental findings reveal that the gas pressure technique, coupled with specific additive incorporation, significantly influences the porosity and thermal properties of CA porous materials, enhancing their performance metrics. This study not only contributes to the advancement of porous materials technology but also aligns with the principles of green chemistry by utilizing biodegradable, renewable materials in the production of highly thermally stable porous materials. Our work heralds a new era in porous materials design, characterized by improved energy storage solutions and reduced environmental impact.</p></div>","PeriodicalId":684,"journal":{"name":"Korean Journal of Chemical Engineering","volume":"42 11","pages":"2467 - 2477"},"PeriodicalIF":3.2,"publicationDate":"2025-03-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144923149","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

Augmented Thermal Resilience in Porous Cellulose Derivative Films: The Impact of Glucose Post-phase Separation 多孔纤维素衍生物膜的热弹性增强：葡萄糖相后分离的影响

IF 3.2 4区工程技术

Korean Journal of Chemical Engineering Pub Date : 2025-03-14 DOI: 10.1007/s11814-025-00439-8

Heejin Kim, Sang Wook Kang

{"title":"Augmented Thermal Resilience in Porous Cellulose Derivative Films: The Impact of Glucose Post-phase Separation","authors":"Heejin Kim, Sang Wook Kang","doi":"10.1007/s11814-025-00439-8","DOIUrl":"10.1007/s11814-025-00439-8","url":null,"abstract":"<div><p>This study investigates the physicochemical transformations induced by the addition of glucose to cellulose derivatives films. The Gurley permeability tests, Fourier Transform Infrared Spectroscopy (FT-IR), and Thermogravimetric Analysis (TGA) were employed to explore these changes in depth. The addition of glucose significantly altered the pore structure and thermal properties of the cellulose derivatives films, leading to an increase in pore size and alteration in the thermal stability of the films. Gurley permeability tests showed a dramatic increase in air permeability following phase separation, suggesting an enhancement in ionic conductivity crucial for battery performance. SEM analysis confirmed the formation of larger and more regularly arranged pores as glucose content increased, indicating a significant increase in the free volume within the polymer matrix due to the stereochemistry of glucose. FT-IR analysis revealed shifts in absorption peaks post-glucose addition, suggesting changes in the bond strength of functional groups. These spectral shifts were particularly pronounced in membranes with higher glucose content, indicating alterations in chemical interactions and polymer structure. TGA and DTG analyses demonstrated that the addition of glucose and subsequent phase separation processes improved the thermal stability of the membranes despite higher porosity, which typically lowers thermal stability.</p></div>","PeriodicalId":684,"journal":{"name":"Korean Journal of Chemical Engineering","volume":"42 8","pages":"1825 - 1834"},"PeriodicalIF":3.2,"publicationDate":"2025-03-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145165992","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

Pyrolysis Products Separation of Lignin via Molecular Distillation and Liquid–Liquid Extraction 木质素热解产物的分子蒸馏-液-液萃取分离

IF 2.9 4区工程技术

Korean Journal of Chemical Engineering Pub Date : 2025-03-14 DOI: 10.1007/s11814-025-00426-z

Hamidreza Soltani Panah, Dong Hwi Jeong

{"title":"Pyrolysis Products Separation of Lignin via Molecular Distillation and Liquid–Liquid Extraction","authors":"Hamidreza Soltani Panah, Dong Hwi Jeong","doi":"10.1007/s11814-025-00426-z","DOIUrl":"10.1007/s11814-025-00426-z","url":null,"abstract":"<div><p>In this communication, two sets of experimental data on lignin pyrolysis were proposed to design processes for product separation through Aspen Plus V12.1. After simulation, a comprehensive analysis was undertaken, encompassing both techno-economic evaluations and energy analyses, utilizing Aspen Process Economic Analyzer (APEA) V12 and Aspen Energy Analyzer (AEA) V12.1. The initial phase involved the development of processes via molecular distillation, facilitating components separation. Subsequent modifications incorporated liquid–liquid-extraction technique, with a comparative assessment of system performances. Techno-economic analysis revealed that, for the first dataset, solvent extraction resulted in an 8.9% and 10.3% reduction in total capital cost and equipment cost. Conversely, for the second dataset, one-step solvent extraction incurred a 25.0% and 26.0% increase in total capital cost and equipment cost, while two-stage solvent extraction led to a more substantial rise of 52.1% and 55.4%. In parallel, energy analysis outcomes indicated that, for the first dataset and the first scenario of the second dataset, peak values were observed for heating, with ratios of heating values to the sum of cooling and process exchanger values at 55.5, 44.8, and 1.0. In alternate scenarios, cooling values surpassed cumulative sum of heating and process exchanger values, yielding ratios of 1.6 and 1.5 for cooling values to the sum of heating and process exchanger values.</p></div>","PeriodicalId":684,"journal":{"name":"Korean Journal of Chemical Engineering","volume":"42 5","pages":"971 - 986"},"PeriodicalIF":2.9,"publicationDate":"2025-03-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143852475","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

Evaluation of Mixing Efficiency Using Hybrid Impeller Synergistic with Pulsed Air Bubbles in Liquid–Liquid System 利用混合叶轮与脉冲气泡协同作用评估液-液系统中的混合效率

IF 2.9 4区工程技术

Korean Journal of Chemical Engineering Pub Date : 2025-03-13 DOI: 10.1007/s11814-025-00429-w

Yan Zhang, Xinyu Li, Gai Zhang, Zhiqiang Li, Jianxin Xu, Hua Wang

{"title":"Evaluation of Mixing Efficiency Using Hybrid Impeller Synergistic with Pulsed Air Bubbles in Liquid–Liquid System","authors":"Yan Zhang, Xinyu Li, Gai Zhang, Zhiqiang Li, Jianxin Xu, Hua Wang","doi":"10.1007/s11814-025-00429-w","DOIUrl":"10.1007/s11814-025-00429-w","url":null,"abstract":"<div><p>The motion of bubbles in stirred reactors exerts a significant influence on heat and mass transfer, as well as reaction rates within the reactor. This study examines the chaotic mixing characteristics and dynamic behavior of bubbles in a stirred reactor by introducing pulsed air flow. Deep learning is employed to track and analyze bubble motion, thereby revealing the mechanistic insights of bubble dynamics in stirred reactors. Additionally, mechanical stirring chaos characteristics are quantified using 0-1 tests, coupled with a comprehensive evaluation of mixing systems based on mixing times. The results demonstrate that pulsed air flow induces nonlinear bubble motion, generating complex mixing patterns and flow structures within the reactor. Quantitative analysis of bubble trajectories and distributions elucidates the impact mechanisms of pulsed air flow on mixing efficiency. Further research reveals that optimizing parameters of pulsed air flow can enhance bubble motion, improve mixing efficiency, accelerate reaction rates, and enhance reactor performance. Under optimal conditions, mixing times are reduced by 3.26 times compared to conventional mixing systems. This study offers novel insights and methodologies for the design and optimization of mixing reactors.</p><h3>Graphical Abstract</h3><div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":684,"journal":{"name":"Korean Journal of Chemical Engineering","volume":"42 5","pages":"1015 - 1031"},"PeriodicalIF":2.9,"publicationDate":"2025-03-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143852606","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