D. Bosch , J.O. Back , M. Spruck , L. Nohel , D. Gurtner , C. Margreiter , A. Hofmann , A. Bockreis
{"title":"Addressing Europe’s new hunger for sustainable activated carbon in wastewater treatment: Micropollutant removal with residual wood-based adsorbents using different activation strategies","authors":"D. Bosch , J.O. Back , M. Spruck , L. Nohel , D. Gurtner , C. Margreiter , A. Hofmann , A. Bockreis","doi":"10.1016/j.cherd.2025.03.021","DOIUrl":"10.1016/j.cherd.2025.03.021","url":null,"abstract":"<div><div>To meet the recast EU Urban Wastewater Treatment Directive, the EU and Austria will require approx. 270 and 10 kt a<sup>−1</sup> of activated carbon, respectively. This study explores the potential of using non-fossil activated carbon derived from residual woody biomass to fulfil this demand using experimental adsorption data. We compared a commercial activated carbon (COM-AC) with three activated carbons produced from local residual wood (ZINC-AC, G-AC, CO2-AC) using various activation strategies. ZINC-AC was produced through one-step chemical impregnation with ZnCl<sub>2</sub> of waste wood. G-AC was a by-product of gasifying forestry residue biomass, and CO2-AC is the CO<sub>2</sub>-activated version of G-AC. Adsorption experiments were performed with a mix of six micropollutants in different water matrices. ZINC-AC exhibited the highest surface area (S<sub>BET</sub> 1946 m<sup>2</sup> g<sup>−1</sup>) and the second highest micropollutant capacity in tap water (257.4 mg g<sup>−1</sup>), after COM-AC (297.6 mg g<sup>−1</sup>). ZINC-AC's capacity remained stable in wastewater. G-AC showed a low capacity (34.6 mg g<sup>−1</sup>), which could be increased to 105.1 mg g<sup>−1</sup> by CO<sub>2</sub>-activation. The predominant removal mechanisms are identified as hydrophobic and π-interactions. The study suggests that these activated carbons from residual woods could be a viable alternative for wastewater treatment, though production yield (35 % vs. 3.5 % for the most promising methods) and quality will be crucial for assessing Europe’s activated carbon production potential from woody biomasses.</div></div>","PeriodicalId":10019,"journal":{"name":"Chemical Engineering Research & Design","volume":"217 ","pages":"Pages 108-120"},"PeriodicalIF":3.7,"publicationDate":"2025-03-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143760042","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Design of a tar catalytic cracker based on hot syngas clean-up tests","authors":"Vincenzo Arconati , Carmine Boccia , Filomena Ardolino , Giovanna Ruoppolo , Umberto Arena , Francesco Parrillo","doi":"10.1016/j.cherd.2025.03.022","DOIUrl":"10.1016/j.cherd.2025.03.022","url":null,"abstract":"<div><div>Catalytic tar cracking is a promising technique for hot syngas cleaning section in gasification plants since it can remove tars without losing their chemical energy, thereby increasing syngas heating value. Anyway, concerns associated with catalyst selection and preparation and those related to the deactivation phenomenon induced by coke deposition on the active sites still hinder the technical feasibility and economic viability of the process. This study investigates the role of the main operating conditions in the cracking of naphthalene (used as a tar model compound) by means of tests carried out with an iron-supported catalyst (Fe/γ-Al<sub>2</sub>O<sub>3</sub>), under different values of gas residence times (0.055 s, 0.11 s, 0.165 s and 0.22 s), steam concentrations (0 % and 7.5 %), and reactor temperature (750 °C and 800 °C). The results were used to implement a diffusivity analysis and a kinetic study that drove the design of a tar cracking fixed bed reactor to be used in the clean-up section of a large pilot-scale bubbling fluidized bed gasifier.</div></div>","PeriodicalId":10019,"journal":{"name":"Chemical Engineering Research & Design","volume":"217 ","pages":"Pages 152-161"},"PeriodicalIF":3.7,"publicationDate":"2025-03-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143768011","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Xingyu Lin , Hongsheng Lu , Ruoxin Zhang , Yingjiang Chen , Baiwen Huang
{"title":"Dual-functionality of CO2-responsive ionic liquids for CO2 storage: Fatty acid particles re-precipitation and clay swelling inhibition","authors":"Xingyu Lin , Hongsheng Lu , Ruoxin Zhang , Yingjiang Chen , Baiwen Huang","doi":"10.1016/j.cherd.2025.03.024","DOIUrl":"10.1016/j.cherd.2025.03.024","url":null,"abstract":"<div><div>Gas channeling during CO<sub>2</sub> flooding presents a significant challenge to the effective underground storage of CO<sub>2</sub>. This study introduces a novel gas channel blocking strategy using the phase transition properties of fatty acid based CO<sub>2</sub>-responsive ionic liquids (ILs). The ILs were synthesized from choline hydroxide (Ch) and high-melting-point fatty acids (FA), including myristic acid (C14) and palmitic acid (C16), named FA-Ch ILs. These ILs demonstrate phase transformation behavior after CO<sub>2</sub> injection, leading to the precipitation of FA as solid particles. The FA-Ch ILs aqueous solution exhibits low viscosity, ensuring excellent injectivity for oilfield applications. After CO<sub>2</sub> injection, the precipitated FA particles act as gas channeling plugging agents, while the protonated Ch ions effectively inhibit clay swelling to enhance oil recovery with a synergistic effect. Structural properties and interaction mechanisms of the FA-Ch system were characterized by FT-IR, <sup>1</sup>H NMR, and molecular dynamics simulations. The particle size of the FA precipitates was regulated by adjusting FA-Ch concentration and CO<sub>2</sub> injection rate to make it suitable as a profile control agent. Furthermore, Ch<sup>+</sup> ions demonstrate clay swelling inhibition comparable to traditional inhibitors like KCl. This dual-functionality positions FA-Ch ILs as an innovative solution for addressing gas channeling and clay swelling in CO<sub>2</sub> flooding, offering a cost-effective and environmentally friendly alternative to conventional methods.</div></div>","PeriodicalId":10019,"journal":{"name":"Chemical Engineering Research & Design","volume":"217 ","pages":"Pages 64-71"},"PeriodicalIF":3.7,"publicationDate":"2025-03-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143739167","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Temperature swing adsorption cycle with recovered gas injection","authors":"Peikun Zhang, Li Wang","doi":"10.1016/j.cherd.2025.03.025","DOIUrl":"10.1016/j.cherd.2025.03.025","url":null,"abstract":"<div><div>A novel TSA cycle with recovered gas injection (RGI) is proposed, which aims to reduce the energy requirement in the gas purification process. Unlike traditional dual-column TSA cycles, the novel cycle comprises three adsorption columns, each equipped with a main bed and an auxiliary bed. Positioned between the main and auxiliary beds, an injection port is designed to introduce the recovered tail gas. In the RGI step, the tail gas is recycled and injected into the auxiliary bed for regeneration, ensuring the full utilization and consumption of residual heat, thereby achieving zero heat emission in principle. Since the tail gas is injected into the auxiliary bed, the new cycle avoids contact between the tail gas and the unused bed while utilizing the residual heat. To ascertain the quantitative heat emission of the new cycle, a case study focusing on the air purification unit of a large-scale air separation unit is studied by simulations. Consequently, simulation results of the adsorption column have been obtained, and comparisons between the new and traditional cycles have been conducted. The unit energy consumption of the new cycle was reduced by 24.5 % compared to the traditional one.</div></div>","PeriodicalId":10019,"journal":{"name":"Chemical Engineering Research & Design","volume":"217 ","pages":"Pages 121-127"},"PeriodicalIF":3.7,"publicationDate":"2025-03-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143768010","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Brenda Huerta-Rosas , Melanie Coronel-Muñoz , Juan José Quiroz-Ramírez , Carlos Rodrigo Cáceres-Barrera , Gabriel Contreras-Zarazúa , Juan Gabriel Segovia-Hernández , Eduardo Sánchez-Ramírez
{"title":"Intensified alternative for sustainable gamma-valerolactone production from levulinic acid","authors":"Brenda Huerta-Rosas , Melanie Coronel-Muñoz , Juan José Quiroz-Ramírez , Carlos Rodrigo Cáceres-Barrera , Gabriel Contreras-Zarazúa , Juan Gabriel Segovia-Hernández , Eduardo Sánchez-Ramírez","doi":"10.1016/j.cherd.2025.03.023","DOIUrl":"10.1016/j.cherd.2025.03.023","url":null,"abstract":"<div><div>γ-Valerolactone (GVL) is a promising bio-based chemical with applications in renewable fuels and chemicals. While several catalytic strategies for its production exist, a common challenge is the lack of an integrated process that combines both production and purification. Currently, these steps are performed separately, with distillation being energy-intensive, especially at low yields. This study presents a novel approach by integrating both production and purification of GVL in a single, energy-efficient operation using reactive distillation.The novelty of this work lies in the design and optimization of a reactive distillation column, where key operating conditions and design parameters are carefully selected to ensure that both chemical reactions and component purification occur efficiently within the same unit. Experimental data from the literature were used to model the process kinetics, ensuring the simulation accurately reflects experimental conditions. This integrated approach not only reduces energy consumption but also improves the overall efficiency of GVL production, offering a more sustainable and cost-effective alternative for industrial applications. By employing a multiobjective optimization framework, the design balances economic, environmental, and operational objectives, achieving a reduction in total annual cost (TAC) to 43 % and environmental impact (Eco Indicator 99, EI99) to 45 % of the values associated with conventional processes. Moreover, energy consumption is decreased by 63 %, and GVL production is increased by 25 %, demonstrating the significant potential of reactive distillation for improving both efficiency and sustainability.</div></div>","PeriodicalId":10019,"journal":{"name":"Chemical Engineering Research & Design","volume":"217 ","pages":"Pages 38-48"},"PeriodicalIF":3.7,"publicationDate":"2025-03-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143734908","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Falih Hamzah Edan , Farkad Ali Lattieff , Muhsin J. Jweeg , Philippe Mandin
{"title":"Evaluating the accuracy of electrochemical techniques in predicting the industrial alkaline hydrogen production electrolyzer performance: Impacts of electrocatalyst surface changes","authors":"Falih Hamzah Edan , Farkad Ali Lattieff , Muhsin J. Jweeg , Philippe Mandin","doi":"10.1016/j.cherd.2025.03.017","DOIUrl":"10.1016/j.cherd.2025.03.017","url":null,"abstract":"<div><div>This study explored the effectiveness of electroanalytical techniques, encompassing cyclic voltammetry, Tafel standards, and chronoamperometry, in predicting hydrogen production in industrial-scale electrolyzers. A three-electrode cell was utilized to investigate four electrodes made of pure Ti and nanostructured TiO<sub>2</sub>, Ag, and Ag+TiO<sub>2</sub>, which were synthesized and applied as hydrogen source cathode electrodes in an industrial setting. The findings indicated that the sequence of electrode activity derived from cyclic voltammetry measurements (TiO<sub>2</sub>>Ti>Ag>Ag+TiO<sub>2</sub>) differed markedly from that observed at the industrial scale (TiO<sub>2</sub>>Ag>Ag+TiO<sub>2</sub>>Ti). The Tafel slope for each coated electrocatalyst yielded two distinct scan rate values, while a singular value was observed for pure Ti. Chronoamperometry studies indicated that the performance arrangement of the electrodes resembled that found in industrial systems. The observed differences in behavior between chronoamperometry and cyclic voltammetry studies can be explained by the fact that chronoamperometry is based on concentration gradients, while cyclic voltammetry is based on change in potential. All nanostructured electrodes exhibited non-Cottrellian behavior, indicating that hydrogen evolution from the nanoparticle-enriched electrodes significantly differed from that expected from the pure one. Nanoparticle-modified electrode specialists must conduct more examinations because present electroanalytical methods cannot reliably predict industrial nanoelectrode performance improvements. Kinetic parameters such as diffusion coefficient, concentration gradient, exchange current density, transport coefficient, and diffusion layer thickness were also analyzed.</div></div>","PeriodicalId":10019,"journal":{"name":"Chemical Engineering Research & Design","volume":"217 ","pages":"Pages 72-82"},"PeriodicalIF":3.7,"publicationDate":"2025-03-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143739169","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Jan Moravčík , Luděk Kaluža , Florian Bonnet , Karel Soukup , Martin Sádecký , Jaroslav Kocík
{"title":"Preparation of sulphide catalysts for heteroatom elimination in hydrocarbon refining","authors":"Jan Moravčík , Luděk Kaluža , Florian Bonnet , Karel Soukup , Martin Sádecký , Jaroslav Kocík","doi":"10.1016/j.cherd.2025.03.016","DOIUrl":"10.1016/j.cherd.2025.03.016","url":null,"abstract":"<div><div>Sulphide catalysts containing Co, Ni, Mo and/or W catalyse hydrogenolysis of carbon sulphur/nitrogen/oxygen bonds and they are widely used in the hydrodesulphurization (HDS) of petroleum fractions. The HDS process produces H<sub>2</sub>S, which is subsequently partially oxidized to water and elemental sulphur in the Claus process. Nevertheless, this process can be overflowed with H<sub>2</sub>S. Sulphide catalysts are therefore investigated for the direct thermo-catalytic decomposition of H<sub>2</sub>S to form H<sub>2</sub> and elemental sulphur. This work tailors on a novel and straightforward preparation method of the unsupported form of Co/MoS<sub>2</sub>, Ni/MoS<sub>2</sub>, Ni/WS<sub>2</sub> and Ni/MoWS<sub>2</sub> catalysts. The aqueous slurry of CoCO<sub>3</sub>.Co(OH)<sub>2</sub> or 2NiCO<sub>3</sub>.3Ni(OH)<sub>2</sub>·4H<sub>2</sub>O reacts with MoS<sub>2</sub>, WS<sub>2</sub> or MoS<sub>2</sub>+WS<sub>2</sub> during milling in a planetary mill. After drying and re-sulphidation, the catalyst is characterised by its specific surface area (<em>S</em><sub><em>BET</em></sub>), free sulphur vacancies (O<sub>2</sub> up-take), crystalline size of molybdenite and/or tungstenite (<em>D</em><sub><em>XRD</em></sub>), activity in thiophene (Th) and 4,6-dimethyldibenzothiophene (4,6DMDBT) HDS, and activity in thermo-catalytic decomposition of H<sub>2</sub>S. We concluded that the prepared catalysts are active in Th and 4,6DMDBT hydrodesulphurization, and thermo-catalytic decomposition of H<sub>2</sub>S. The Ni/WS<sub>2</sub> is the most active in all reactions and also the most selective to direct desulphurization (DDS) during the 4,6DMDBT HDS. WS<sub>2</sub> best suits the studied preparation method.</div></div>","PeriodicalId":10019,"journal":{"name":"Chemical Engineering Research & Design","volume":"216 ","pages":"Pages 515-522"},"PeriodicalIF":3.7,"publicationDate":"2025-03-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143715744","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Francisco Javier López-Flores, Alma Yunuen Raya-Tapia, César Ramírez-Márquez, José María Ponce-Ortega
{"title":"Exploring clustering tools in process systems engineering: Innovations, applications, and future directions","authors":"Francisco Javier López-Flores, Alma Yunuen Raya-Tapia, César Ramírez-Márquez, José María Ponce-Ortega","doi":"10.1016/j.cherd.2025.03.018","DOIUrl":"10.1016/j.cherd.2025.03.018","url":null,"abstract":"<div><div>Clustering techniques play a transformative role in optimizing complex systems across various domains, including Process Systems Engineering (PSE), healthcare, and network analysis. In PSE, these methods enhance fault detection, renewable energy systems, supply chain management, and chemical process optimization by simplifying large datasets, improving decision-making, and enabling sustainable solutions. Beyond industrial applications, clustering supports medical diagnostics and epidemiological studies, as well as social and technological network optimization, enabling better information flow and resource allocation. Researchers have expanded clustering applications by integrating them with other advanced machine learning techniques and real-time data analytics, fostering resilience and adaptability in dynamic environments. Despite these advancements, challenges persist, particularly in managing computational demands and developing adaptive, real-time clustering frameworks that address evolving landscapes. This review critically examines state-of-the-art clustering methodologies across these fields, comparing their contributions, limitations, and future potential. The discussion highlights interdisciplinary approaches and ethical considerations, emphasizing clustering’s role in tackling global challenges such as sustainability and energy transitions. Finally, the paper outlines emerging trends that will shape clustering applications in next-generation systems, digitalization, and artificial intelligence-driven optimization strategies.</div></div>","PeriodicalId":10019,"journal":{"name":"Chemical Engineering Research & Design","volume":"217 ","pages":"Pages 13-23"},"PeriodicalIF":3.7,"publicationDate":"2025-03-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143734897","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Jun Nian , Limin Du , Shaocheng Ge , Liying Sun , Xiaoyan Wang , Cheng He , Yongjin Zhang
{"title":"Experimental optimization of wetting agents for different coal types and study of wetting mechanisms","authors":"Jun Nian , Limin Du , Shaocheng Ge , Liying Sun , Xiaoyan Wang , Cheng He , Yongjin Zhang","doi":"10.1016/j.cherd.2025.03.013","DOIUrl":"10.1016/j.cherd.2025.03.013","url":null,"abstract":"<div><div>This study investigates the impact of various wetting agents on the wetting characteristics of coal samples exhibiting different degrees of deterioration. Initially, surface tension and settling time were assessed to determine the optimal ratios of wetting agents. Subsequently, the interaction between the coal surface and the wetting agents was examined utilizing scanning electron microscopy and energy-dispersive X-ray spectroscopy. Finally, Fourier transform infrared spectroscopy and X-ray photoelectron spectroscopy were employed to analyze the alterations in the functional group content of the coal samples following treatment with the wetting agents. The results showed that the surface carbon content of lignite decreased by 27.64 % and the oxygen content increased by 23.59 % after 0.5 % SLES treatment, while the surface carbon content of bituminous coal and anthracite decreased by 13.70 % and 14.12 %, and the oxygen content increased by 13.57 % and 13.13 % after 0.6 % AEO-9 treatment, respectively. The content of hydrophilic groups (OH, C<img>O, C-O, C-O-C) increased significantly, while the content of hydrophobic groups (C-C, CH, CH3, CH2&CH3) decreased significantly, indicating that the wetting agent can improve the wettability of coal samples by changing the content of hydrophilic and hydrophobic functional groups on the surface of coal. The results of the study can provide guidance for different coal mines to preferably select efficient wetting agents to wet the coal body, which is of great significance to improve the wettability of coal dust. which contributed to an improvement in their hydrophilicity. The results of this research possess considerable practical implications for the control of coal mine dust.</div></div>","PeriodicalId":10019,"journal":{"name":"Chemical Engineering Research & Design","volume":"217 ","pages":"Pages 49-63"},"PeriodicalIF":3.7,"publicationDate":"2025-03-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143739075","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Zhang Tian , Chen Xingyu , Ge Shaocheng , Li Sheng , Tong Linquan , Mu Xinsheng , Guo Yuhao
{"title":"Experimental study of the effect of droplet motion velocity on the capture capacity of dust with different characteristics","authors":"Zhang Tian , Chen Xingyu , Ge Shaocheng , Li Sheng , Tong Linquan , Mu Xinsheng , Guo Yuhao","doi":"10.1016/j.cherd.2025.03.012","DOIUrl":"10.1016/j.cherd.2025.03.012","url":null,"abstract":"<div><div>In coal mine dust control, the efficiency of pneumatic spray technology is limited due to the unclear removal efficiency of different types of droplets on different types of dust, and the unclear dust fog coupling mechanism. This research systematically explores the characteristics of the droplets of the internally mixed pneumatic atomization nozzle and its interaction with the dust through theoretical analysis and experiment. Laser particle size analyzer and particle image velocimeter were used to measure the particle size and velocity field distribution of fog droplets. A gas dust liquid three-phase coupling experimental platform was constructed to capture fog films with specific properties of fog droplet groups for dust fog coupling experiments. The response surface methodology was used to analyze the dust fog coupling effect under different operating conditions. The experimental results show that there is a significant temporal and spatial difference between the droplet velocity and the airflow velocity. The velocity of the aerosol flow field is negatively correlated with the spray distance, and positively correlated with the aerodynamic pressure. The attenuation of the airflow velocity is far greater than that of the droplet. Droplet size is negatively correlated with aerodynamic pressure, and positively correlated with water flow and spray distance. In the coupling effect of dust and mist, dust particles with particle sizes of 0–2.5 μm and 5–10 μm are dominated by droplet velocity, while dust particles with particle sizes of 2.5–5 μm are significantly affected by their own velocity. When the droplet velocity reaches 18–23 m/s, the fog film has a good effect on capturing respiratory dust at different velocities, and the dust reduction efficiency reaches a peak of 86.13 %. The momentum ratio and kinetic energy ratio of fog droplets to dust have a significant nonlinear effect on the removal of 5–50 μm dust from airborne airflow, with the removal efficiency of 10–50 μm dust showing a unimodal distribution as the momentum ratio and kinetic energy ratio increase. The results of this study provide data and theoretical support for determining the optimal dust mist coupling matching relationship between different types of droplets and dust under different lateral airflow velocities, and for efficient prevention and control of respiratory dust in coal mines.</div></div>","PeriodicalId":10019,"journal":{"name":"Chemical Engineering Research & Design","volume":"216 ","pages":"Pages 531-548"},"PeriodicalIF":3.7,"publicationDate":"2025-03-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143726227","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}