Korean Journal of Chemical Engineering最新文献_第10页

Enhanced Thermofluidic Modeling and Open-Source Rigorous Simulation of Hydrogen Fueling Systems Validated with Real-World Data 增强的热流体建模和开源严格模拟氢燃料系统验证与现实世界的数据

IF 3.2 4区工程技术

Korean Journal of Chemical Engineering Pub Date : 2025-09-10 DOI: 10.1007/s11814-025-00551-9

Jongyeon Oh, Juri Lim, Kyuhwan Hyun, Gihoon Hong, Yunyeong Yang, Dongil Shin

{"title":"Enhanced Thermofluidic Modeling and Open-Source Rigorous Simulation of Hydrogen Fueling Systems Validated with Real-World Data","authors":"Jongyeon Oh, Juri Lim, Kyuhwan Hyun, Gihoon Hong, Yunyeong Yang, Dongil Shin","doi":"10.1007/s11814-025-00551-9","DOIUrl":"10.1007/s11814-025-00551-9","url":null,"abstract":"<div>The process of refueling Hydrogen Fuel Cell Electric Vehicles (HFCEVs) with compressed hydrogen gas faces two primary challenges: the temperature rise in the vehicle tank and delay in fueling speed. Since most Hydrogen Refueling Stations (HRSs) are addressing these challenges through cascade systems, there is a demand for performance evaluations of fueling systems under various HRS configurations and operating conditions. However, there is a lack of generalized and validated simulation codes, and experimental results are quite limited. In this study, we develop a model that can simulate real-world fueling processes, including the cascade system, and conduct case studies based on actual HRS configurations. By implementing a more detailed mathematical model than previous studies and simulation code for not only light-duty vehicles but also heavy-duty vehicles, the developed model accurately and extensively simulates the fueling process for various operating conditions and diverse types of vehicle tanks. The reliability of the developed model is validated using real-world data collected from operational HRSs, including extreme operating conditions. The implemented code is available as open-source and supports developing the configuration and operation guidelines of HRSs to be built forward or running now.</div>","PeriodicalId":684,"journal":{"name":"Korean Journal of Chemical Engineering","volume":"42 12","pages":"3055 - 3069"},"PeriodicalIF":3.2,"publicationDate":"2025-09-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145181458","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

Breaking the Trade-off: Cross-Linked Polymeric Membranes for Superior Olefin/Paraffin Separation 打破取舍：用于烯烃/石蜡分离的交联聚合物膜

IF 3.2 4区工程技术

Korean Journal of Chemical Engineering Pub Date : 2025-09-06 DOI: 10.1007/s11814-025-00549-3

Taeheon Kim, Minju Kim, Sujung Kim, Minsoo P. Kim, Wang-Geun Shim, Heseong An

{"title":"Breaking the Trade-off: Cross-Linked Polymeric Membranes for Superior Olefin/Paraffin Separation","authors":"Taeheon Kim, Minju Kim, Sujung Kim, Minsoo P. Kim, Wang-Geun Shim, Heseong An","doi":"10.1007/s11814-025-00549-3","DOIUrl":"10.1007/s11814-025-00549-3","url":null,"abstract":"<div>The separation of olefins from paraffins, particularly propylene/propane mixtures, is a crucial process in the petrochemical industry. While membrane-based separation offers an energy-efficient alternative to conventional cryogenic distillation, polymeric membranes face challenges such as limited selectivity and plasticization at high feed pressures. This review explores recent advancements in chemical cross-linking strategies aimed at enhancing polymeric membrane performance for olefin/paraffin separation. Various cross-linking approaches—including the incorporation of thermally labile halogens, cyclodextrins, and thermally activated moieties—are analyzed with a focus on their effectiveness in improving plasticization resistance while maintaining gas permeability. The influence of different cross-linking agents, reaction conditions, and polymer structures on membrane performance is systematically reviewed. Particular attention is given to novel cross-linking agents that help mitigate the typical trade-off between plasticization resistance and gas transport properties. Additionally, the relationship between cross-linking density, membrane morphology, and separation efficiency is discussed, along with challenges in scaling up these technologies for industrial applications. This comprehensive analysis provides insights into the current state of cross-linked polymeric membrane development and highlights promising research directions toward achieving more efficient and scalable olefin/paraffin separation.</div>","PeriodicalId":684,"journal":{"name":"Korean Journal of Chemical Engineering","volume":"43 on","pages":"147 - 165"},"PeriodicalIF":3.2,"publicationDate":"2025-09-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145808761","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

Surfactant-Free Stabilization of Oil Droplets Using a Viscoelastic Continuous Phase for Polymeric Microspheres 用粘弹性连续相稳定聚合物微球油滴的无表面活性剂

IF 3.2 4区工程技术

Korean Journal of Chemical Engineering Pub Date : 2025-09-02 DOI: 10.1007/s11814-025-00550-w

Hyo-Jin Kim, Chang-Hyung Choi

{"title":"Surfactant-Free Stabilization of Oil Droplets Using a Viscoelastic Continuous Phase for Polymeric Microspheres","authors":"Hyo-Jin Kim, Chang-Hyung Choi","doi":"10.1007/s11814-025-00550-w","DOIUrl":"10.1007/s11814-025-00550-w","url":null,"abstract":"<div>This study presents a surfactant-free microfluidic method for fabricating polymeric microspheres by utilizing the viscoelastic properties of alginate solutions as the continuous phase. The high-viscosity alginate suppresses droplet coalescence and maintains droplet integrity during flow, enabling stable single emulsions without the use of surfactants. Oil droplets containing photocurable monomers are partially polymerized in situ under UV irradiation and subsequently cured through post-polymerization to form structurally stable microspheres. Flow regime analysis reveals that droplet formation behavior is controllable by adjusting the flow rates of the dispersed and continuous phases, leading to the production of monodisperse particles with a coefficient of variation (C.V.) of 1.3%. The method is compatible with various monomers, including ethoxylated trimethylolpropane triacrylate (ETPTA), poly(propylene glycol) diacrylate (PPGDA), trimethylolpropane triacrylate (TMPTA), and poly(ethylene glycol) diacrylate (PEGDA), which forms hydrogel particles after curing. These results demonstrate that viscoelastic stabilization can effectively replace conventional surfactant-based emulsification, offering a biocompatible and broadly applicable platform for precision microsphere fabrication.</div>","PeriodicalId":684,"journal":{"name":"Korean Journal of Chemical Engineering","volume":"43 on","pages":"289 - 295"},"PeriodicalIF":3.2,"publicationDate":"2025-09-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145808763","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

Polyethylenimine-Impregnated Powdered Activated Carbon for Efficient Removal of Reactive Yellow 2 from Aqueous Solutions 聚乙烯亚胺浸渍粉状活性炭高效去除水溶液中的活性黄2

IF 3.2 4区工程技术

Korean Journal of Chemical Engineering Pub Date : 2025-09-01 DOI: 10.1007/s11814-025-00548-4

Su Bin Kang, Byeong-Chan Min, Kwang-Il Go, Yong Li, Yeoung-Sang Yun, Sung Wook Won

{"title":"Polyethylenimine-Impregnated Powdered Activated Carbon for Efficient Removal of Reactive Yellow 2 from Aqueous Solutions","authors":"Su Bin Kang, Byeong-Chan Min, Kwang-Il Go, Yong Li, Yeoung-Sang Yun, Sung Wook Won","doi":"10.1007/s11814-025-00548-4","DOIUrl":"10.1007/s11814-025-00548-4","url":null,"abstract":"<div>This study optimizes polyethylenimine (PEI) impregnation on powdered activated carbon (PAC) to maximize adsorption of the anionic dye Reactive Yellow 2 (RY2). Three factors, namely PEI molecular weight (600, 800, 1200, 10,000 and 70,000 g mol−1), PEI content (0.1–10 wt.%), and impregnation stirring speed (0–200 rpm), were systematically evaluated in triplicate. Under optimal conditions (PEI Mw = 800 g mol−1, PEI content = 1.0 wt.%, stirring = 40 rpm), PEI-impregnated PAC achieved a maximum adsorption capacity of 477.02 mg g−1, which is 7.4-fold higher than raw PAC (64.13 mg g−1). FT-IR, BET, FE-SEM/EDS, and zeta potential analyses showed that although PEI impregnation reduced surface area, the introduced amine groups increased the surface charge by + 52.64 mV at pH 2, driving the enhanced adsorption. These results demonstrate that PEI-impregnated activated carbon is a strong and efficient adsorbent for RY2 removal in textile wastewater treatment.</div>","PeriodicalId":684,"journal":{"name":"Korean Journal of Chemical Engineering","volume":"43 on","pages":"253 - 266"},"PeriodicalIF":3.2,"publicationDate":"2025-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145808759","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

A Variance-Weighted Curvature Criterion for Sequential Experimental Design 序贯试验设计的方差加权曲率准则

IF 3.2 4区工程技术

Korean Journal of Chemical Engineering Pub Date : 2025-09-01 DOI: 10.1007/s11814-025-00543-9

Boeun Kim, Kyung Hwan Ryu

引用次数: 0

Optimizing Hydrate-Based CO2 Capture in Saline Environments Using Low-Dosage THF for Seawater Utilization 利用低剂量四氢呋喃优化盐环境中基于水合物的CO2捕集

IF 3.2 4区工程技术

Korean Journal of Chemical Engineering Pub Date : 2025-08-30 DOI: 10.1007/s11814-025-00547-5

Yeonjin Kang, Dagyeong Ock, Jinwoo Lee, Jonghyuk Lee, Junghoon Mok, Woojin Go, Wonjung Choi

{"title":"Optimizing Hydrate-Based CO2 Capture in Saline Environments Using Low-Dosage THF for Seawater Utilization","authors":"Yeonjin Kang, Dagyeong Ock, Jinwoo Lee, Jonghyuk Lee, Junghoon Mok, Woojin Go, Wonjung Choi","doi":"10.1007/s11814-025-00547-5","DOIUrl":"10.1007/s11814-025-00547-5","url":null,"abstract":"<div>This study investigated the influence of low-dosage thermodynamic promoters on gas hydrate-based CO2 capture from CO2 + N2 mixtures in saline environments for offshore applications. Phase equilibria measured in the presence of 0.1 and 1.0 mol% tetrahydrofuran (THF) demonstrated that a small amount of THF mitigated the inhibition effect of NaCl. However, the promotion effect diminished with increasing pressure, possibly due to the transfer of a small fraction of THF molecules to the vapor phase at high pressure. Weight fractions calculated from Rietveld analysis revealed that low-dosage THF promoted sII hydrate formation, enhancing thermodynamic stability. Cage-dependent guest occupancy indicated that higher THF concentrations in solution decreased both CO2 selectivity and capacity, as N2 was preferentially captured in the small cages of sII hydrates. These findings provide insights into optimizing hydrate-based CO2 capture in offshore environments by balancing thermodynamic stability enhancement with CO2 separation efficiency.</div>","PeriodicalId":684,"journal":{"name":"Korean Journal of Chemical Engineering","volume":"43 on","pages":"267 - 278"},"PeriodicalIF":3.2,"publicationDate":"2025-08-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145808607","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

Oxide-Type Materials for Catalytic CO2 Methanation: Recent Advances and Future Perspectives 催化CO2甲烷化的氧化物型材料：最新进展和未来展望

IF 3.2 4区工程技术

Korean Journal of Chemical Engineering Pub Date : 2025-08-26 DOI: 10.1007/s11814-025-00544-8

Bonjae Koo

{"title":"Oxide-Type Materials for Catalytic CO2 Methanation: Recent Advances and Future Perspectives","authors":"Bonjae Koo","doi":"10.1007/s11814-025-00544-8","DOIUrl":"10.1007/s11814-025-00544-8","url":null,"abstract":"<div>Carbon dioxide (CO2) methanation, also known as the Sabatier reaction, is a promising strategy for mitigating greenhouse gas emissions while enabling the storage of renewable hydrogen in the form of methane. However, achieving high catalytic activity, selectivity, and long-term stability under industrially relevant conditions requires the development of catalysts with tailored structural and functional properties. Conventional catalysts based on Ni, Ru, and Rh have demonstrated considerable performance in CO2 methanation. Nevertheless, challenges associated with high-temperature catalysis such as thermal degradation, carbon deposition (coking), and the high cost of noble metals still remain. To address these issues, oxide-type materials have attracted increasing attention due to their multifunctional roles not only as catalyst supports but also as active materials in the catalytic process. Simple oxides such as Al2O3, SiO2, CeO2, and ZrO2, as well as more structurally complex oxides such as perovskites (e.g., LaNiO3, SrTiO3) and spinels (e.g., MgAl2O4), can significantly influence metal dispersion, reducibility, and metal–support interaction strength. As a result, these characteristics critically affect both catalytic performance and durability of CO2 methanation. Moreover, many oxides actively participate in the reaction mechanism by facilitating oxygen vacancy formation, hydrogen spillover, and dynamic redox behavior, making them essential components in the design of next-generation CO2 methanation catalysts. This review summarizes recent progress in oxide-type materials for catalytic CO2 methanation and highlights material design strategies aimed at developing catalysts with high activity, selectivity, and durability.</div>","PeriodicalId":684,"journal":{"name":"Korean Journal of Chemical Engineering","volume":"42 on","pages":"3153 - 3172"},"PeriodicalIF":3.2,"publicationDate":"2025-08-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145435884","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

Efficient Recovery and High-Valued Utilization of Aluminum and Magnesium from Raffinate Acid via Stripping and Crystallization 汽提结晶法从萃余酸中高效回收铝镁及高价值利用

IF 3.2 4区工程技术

Korean Journal of Chemical Engineering Pub Date : 2025-08-23 DOI: 10.1007/s11814-025-00545-7

Peilin Li, Yue Lan, Yanru Jin, Dehua Xu, Lin Yang

{"title":"Efficient Recovery and High-Valued Utilization of Aluminum and Magnesium from Raffinate Acid via Stripping and Crystallization","authors":"Peilin Li, Yue Lan, Yanru Jin, Dehua Xu, Lin Yang","doi":"10.1007/s11814-025-00545-7","DOIUrl":"10.1007/s11814-025-00545-7","url":null,"abstract":"<div>Solvent extraction is a broadly employed method for removing impurities from wet-process phosphoric acid (WPA). However, the raffinate acid generated by this method remains underutilized due to its high viscosity and elevated metal impurity (Fe, Al, Mg) content and nonmetallic impurities (S, F), resulting in resource waste. This study employs P-15 as the extractant to purify raffinate acid and introduces an innovative stripping–crystallization process for the separation and recovery of Al3+ and Mg2+, yielding high-value products. A comparative analysis of various stripping agents identified a sulfuric acid solution containing ammonium sulfate as the optimal system. Under the optimized conditions (temperature: 303.15 K, organic–aqueous phase ratio (O/A): 1:1, sulfuric acid concentration: 30 wt.%, reaction time: 30 min), the stripping efficiency reached its optimal value. Theoretical stage calculations using the McCabe–Thiele method and cascade simulation determined that a two-stage countercurrent operation is required. To address crystallization inhibition caused by aluminum–fluoride complexes, silicon or boron (introduced as sodium silicate or borax) was incorporated to form more stable SiF62−or BF4- complexes, facilitating Al3+ release and its subsequent precipitation as NH4Al(SO4)2·12H2O. Further addition of ammonium sulfate enabled the formation of (NH4)2Mg(SO4)2·6H2O. This study provides an efficient and environmentally friendly process for the valorization of raffinate acid from WPA production, offering significant industrial application potential and environmental benefits.</div>","PeriodicalId":684,"journal":{"name":"Korean Journal of Chemical Engineering","volume":"42 12","pages":"2967 - 2986"},"PeriodicalIF":3.2,"publicationDate":"2025-08-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145181490","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

Effects of P/Na/Fe in Simulated Waste on Agglomeration and Defluidization During Fluidized Bed Incineration 模拟垃圾中P/Na/Fe对流化床焚烧过程中团聚和脱流化的影响

IF 3.2 4区工程技术

Korean Journal of Chemical Engineering Pub Date : 2025-08-21 DOI: 10.1007/s11814-025-00546-6

Chiou-Liang Lin, Hong-Jia Wang, Yi-Ying Liu

{"title":"Effects of P/Na/Fe in Simulated Waste on Agglomeration and Defluidization During Fluidized Bed Incineration","authors":"Chiou-Liang Lin, Hong-Jia Wang, Yi-Ying Liu","doi":"10.1007/s11814-025-00546-6","DOIUrl":"10.1007/s11814-025-00546-6","url":null,"abstract":"<div>To clarify the influence of the coexistence of Na, P, and Fe on agglomeration and defluidization, they were added to simulated waste, and the operating parameters changed. Furthermore, P/Na, Fe/Na and P/Na/Fe:Na ratios are altered during the experiment. Increasing the P/Na ratio gradually prolongs the time to agglomeration and defluidization, suggesting that the presence of P suppresses agglomeration. Furthermore, increasing the Fe/Na ratio leads to a downward trend in the time required for agglomeration and defluidization. Hence, the presence of Fe appears to increase the probability of agglomeration and shorten the time required for agglomeration and defluidization. In the presence of all three elements, a P/Fe/Na ratio of 0.1/1/1 yields the shortest time for agglomeration and defluidization, suggesting that this condition is highly susceptible to agglomeration. When the P/Fe/Na ratio is 0.6/5/1, the time to agglomeration and defluidization is the longest. By simultaneously comparing the results from different P/Na and Fe/Na ratios, although the presence of Fe promotes agglomeration and defluidization, the effect of P is greater than that of Fe. Hence, the coexistence of Na, P, and Fe results in a longer time for agglomeration and defluidization when compared to that in the sole presence of Na.</div>","PeriodicalId":684,"journal":{"name":"Korean Journal of Chemical Engineering","volume":"42 on","pages":"3555 - 3567"},"PeriodicalIF":3.2,"publicationDate":"2025-08-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145600885","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

Flow Regime Transition and HCl Capture in a Bubble Column-Type Molten Salt Scrubber 泡柱式熔盐洗涤器的流态转变和HCl捕获

IF 3.2 4区工程技术

Korean Journal of Chemical Engineering Pub Date : 2025-08-18 DOI: 10.1007/s11814-025-00542-w

Yung Zun Cho, Do Kyu Kang, Seok Min Hong, Chang Hwa Lee

{"title":"Flow Regime Transition and HCl Capture in a Bubble Column-Type Molten Salt Scrubber","authors":"Yung Zun Cho, Do Kyu Kang, Seok Min Hong, Chang Hwa Lee","doi":"10.1007/s11814-025-00542-w","DOIUrl":"10.1007/s11814-025-00542-w","url":null,"abstract":"<div>Molten salt reactors (MSR) produce off-gases containing chemically reactive and radioactive species necessitating effective treatment to ensure operational safety and compliance with environmental regulations. This study examines the hydrodynamic behavior and HCl capture performance of a bubble column-type molten salt scrubber designed for MSR off-gas treatment. Flow regime transition from homogeneous to heterogeneous was identified at a gas velocity of 0.025 m/s in NaOH (51 mol%)-KOH molten salt at 250 °C through gas holdup and drift flux analyses. HCl capture efficiency was assessed at 100 ppm HCl inlet concentrations over gas velocities of 0.01–0.03 m/s and temperatures of 250–300 °C. In the homogeneous flow regime, capture efficiency reached approximately 97% at 0.03 m/s, with minimal temperature dependence. Thermodynamic analysis using HSC Chemistry indicated slight Gibbs free energy changes across the tested temperature range, with sequential formation of KCl and NaCl as reaction products. Operating the bubble column-type molten salt scrubber in the homogeneous flow regime optimizes capture efficiency and minimizes aerosol generation, enhancing nuclear safety and off-gas management for sustainable MSR operations.</div>","PeriodicalId":684,"journal":{"name":"Korean Journal of Chemical Engineering","volume":"42 on","pages":"3599 - 3607"},"PeriodicalIF":3.2,"publicationDate":"2025-08-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145600907","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