ParticuologyPub Date : 2025-03-27DOI: 10.1016/j.partic.2025.03.014
Runru Zhu , Yun Huang
{"title":"Effect of co-incineration of sludge with MSW: Evolution characteristics of coarse ash particles and associated de novo synthesis of dioxin","authors":"Runru Zhu , Yun Huang","doi":"10.1016/j.partic.2025.03.014","DOIUrl":"10.1016/j.partic.2025.03.014","url":null,"abstract":"<div><div>This paper aims to report the evolution characteristics of the coarse ash particles generated from the co-incineration of municipal solid waste with other wastes, e.g. sewage sludge, to suggest suitable operational strategies to handle the side effects. By using an evolution model which addresses the mechanism of char combustion, volatile-induced fragmentation, and the transformation of included and excluded minerals particles, the coarse ash particle evolution process in the waste incinerator is successfully predicted. By comparing with in-situ measurement data of a 200 t/d forward grate MSW incinerator, the predicted total particle concentration is 275.7 mg/Nm<sup>3</sup>, and the relative difference is about 4.2 %. Although the variation in flue gas parameters has little effect on the distribution characteristics of coarse ash particles from municipal solid waste incineration (MSWI), the carbon content of coarse ash particles is more sensitive to flue parameter change. Due to the tight relationship between the PCDD/Fs and the carbon content of ash particles under the mechanism of the <em>de novo synthesis</em>, the increase in carbon concentration caused by the co-incineration of low-calorific value waste will increase the probability of the PCDD/Fs formation.</div></div>","PeriodicalId":401,"journal":{"name":"Particuology","volume":"100 ","pages":"Pages 157-165"},"PeriodicalIF":4.1,"publicationDate":"2025-03-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143768894","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
ParticuologyPub Date : 2025-03-27DOI: 10.1016/j.partic.2025.03.013
Zhi-Jun Jiang , Zhen-Hui Luo , Jia-Xin Guo , Yun-Fei Du , Feng Jiang , Nai-Lu Shen , Tao Wang , Xu Liu , Jie Huang , Wen-Han Chen , Yang Zhou , Zhiyang Lyu , Xin Shen , Xin-Bing Cheng , Yuping Wu
{"title":"Thermal safety overview of silicon-carbon anode in lithium-ion batteries: Key parameters in determining the reactivity","authors":"Zhi-Jun Jiang , Zhen-Hui Luo , Jia-Xin Guo , Yun-Fei Du , Feng Jiang , Nai-Lu Shen , Tao Wang , Xu Liu , Jie Huang , Wen-Han Chen , Yang Zhou , Zhiyang Lyu , Xin Shen , Xin-Bing Cheng , Yuping Wu","doi":"10.1016/j.partic.2025.03.013","DOIUrl":"10.1016/j.partic.2025.03.013","url":null,"abstract":"<div><div>The quest for high-energy-density lithium-ion batteries has led to the widespread adoption of silicon anodes, yet their safety, particularly regarding thermal runaway, remains a critical concern. Herein, the thermal safety overview of silicon-carbon anode is conducted to identify the determinants of materials reactivity and heat generation sources. In the hierarchical silicon-carbon anode, surface floating silicon without carbon protection is a serious hazard affecting the thermal safety, exhibiting a 77 % increase in heat release at 100 % state of charge. When the pouch cells with floating silicon are conducted in the test of accelerating rate calorimeter, the maximum temperature can be 875.2 °C (532.1 °C for samples without floating silicon). In addition, the thermal safety of graphite anodes blending with different ratios of silicon-carbon electrode are also explored, confirming the potential safety risks of high-silicon-content lithium-ion batteries. This work presents comprehensive understandings on the thermal features of the high-capacity silicon-carbon anode, which is pivotal for enhancing the safety of next-generation silicon-based high-energy-density batteries.</div></div>","PeriodicalId":401,"journal":{"name":"Particuology","volume":"100 ","pages":"Pages 178-185"},"PeriodicalIF":4.1,"publicationDate":"2025-03-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143768896","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
ParticuologyPub Date : 2025-03-27DOI: 10.1016/j.partic.2025.03.015
Shuyu Li , Di Wu , Hui Yu , Xin Huang , Na Wang , Ting Wang , Hongxun Hao
{"title":"A novel energy-efficient way to prepare solid lipid microspheres loaded with nanoscale drugs by combining LLPS and in-situ crystallization","authors":"Shuyu Li , Di Wu , Hui Yu , Xin Huang , Na Wang , Ting Wang , Hongxun Hao","doi":"10.1016/j.partic.2025.03.015","DOIUrl":"10.1016/j.partic.2025.03.015","url":null,"abstract":"<div><div>In this work, API nanoscale drugs loaded onto solid lipid microspheres (ND@SLMs) were successfully prepared by combining in-situ crystallization technology and liquid-liquid phase separation (LLPS). This method is characterized by its low energy consumption and the absence of a requirement for high concentrations of surfactants. Tristearin (SSS) was used as the drug carriers, and fenofibrate (FEN) was used as API to verify the feasibility of this method. Characterization was performed using SEM, PXRD, and DSC, while in-situ Raman and EasyViewer enabled real-time monitoring of the particle formation process. The results show that the obtained Active Pharmaceutical Ingredient (API) nanoscale crystals exhibited uniform distribution in the solid lipid carrier and enhanced release rates compared to the bulk ingredients. API droplets prepared by LLPS adhered to the surface of the FEN + SSS droplets played the role of dispersant. Response surface analysis was employed to analyze the independent variables and their interactions, and the optimum value of the processing parameters was obtained. Finally, the expandability of this method to other hydrophobic drugs was verified by ibuprofen (IBU).</div></div>","PeriodicalId":401,"journal":{"name":"Particuology","volume":"100 ","pages":"Pages 128-139"},"PeriodicalIF":4.1,"publicationDate":"2025-03-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143760101","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
ParticuologyPub Date : 2025-03-26DOI: 10.1016/j.partic.2025.03.012
Chenlong Wang , Tao Wang , Kai Wan , Jinyi Lv , Jin Sun , Xinyan Zhang , Yingping Pang , Xiqiang Zhao , Yanpeng Mao , Zhanlong Song , Ziliang Wang , Huimin Yun , Wenlong Wang
{"title":"Thermoconversion of organic solid waste in a spouted bed reactor: A review","authors":"Chenlong Wang , Tao Wang , Kai Wan , Jinyi Lv , Jin Sun , Xinyan Zhang , Yingping Pang , Xiqiang Zhao , Yanpeng Mao , Zhanlong Song , Ziliang Wang , Huimin Yun , Wenlong Wang","doi":"10.1016/j.partic.2025.03.012","DOIUrl":"10.1016/j.partic.2025.03.012","url":null,"abstract":"<div><div>Valorization of organic solid waste (OSW) is a promising avenue for the production of value-added products and renewable energy sources. This paper offers an exhaustive review of the thermochemical conversion processes in spouted bed reactors, which yield products like biochar, bio-oil, and syngas, as well as energy forms such as heat and electricity. While numerous studies have been conducted on thermoconversion in spouted beds, there is a scarcity of systematic reviews on this topic. This paper underscores the importance of spouted beds in torrefaction, pyrolysis, and gasification, drawing on both experimental and simulation perspectives. By focusing on reactor design, reaction condition optimization, and catalyst enhancement, OSW can be more efficiently transformed into valuable products and bioenergy. Furthermore, the integration of simulation and modeling offers profound insights into the intricate reactions that occur during thermal conversion. Current simulation studies in spouted bed reactors are primarily centered around reaction kinetics, Computational Fluid Dynamics (CFD) modeling, the Multiphase Particle-In-Cell (MP-PIC) approach, and process simulation. The future integration of Artificial Intelligence (AI) is anticipated to enhance parameter optimization with greater precision and facilitate industrial scale-up. The paper concludes with a synthesis and contemplation of the prospective advancements in spouted bed technology.</div></div>","PeriodicalId":401,"journal":{"name":"Particuology","volume":"100 ","pages":"Pages 140-156"},"PeriodicalIF":4.1,"publicationDate":"2025-03-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143768535","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"A recent emission inventory of S/IVOCs with high-resolution and evaluation in the Yangtze River Delta region of China","authors":"Tongai Song, Tian Fu, Pengjie Gao, Tianliang Zhao, Xingna Yu","doi":"10.1016/j.partic.2025.03.010","DOIUrl":"10.1016/j.partic.2025.03.010","url":null,"abstract":"<div><div>Semi-volatile and intermediate volatility organic compounds (S/IVOCs), as the key precursors, play an important role in forming secondary organic aerosol (SOA). However, the absence of S/IVOCs in the model has led to a significant gap between simulation and measurement of SOA. Although the emission inventory of S/IVOCs is prerequisite for improving the performance of SOA simulation and evaluating the roles of S/IVOCs in SOA production, a gridded anthropogenic emission inventory of S/IVOCs in the Yangtze River Delta (YRD) region is still limited. Therefore, a 2021-based high spatiotemporal resolution S/IVOCs emission inventory over the YRD region was developed in this study. The total emission of S/IVOCs for the YRD region was estimated to be 457.58 Gg. The industrial process was the major contributor to total emissions in Shanghai City, Anhui, and Jiangsu provinces with contributions of more than 40%, while on-road mobile sources contributed the most to S/IVOCs emissions in Zhejiang Province. High S/IVOCs emissions were mainly distributed in the central cities of the YRD with developed industry and transportation, such as Wuhu and Suzhou (Jiangsu), and in the northern cities with larger cultivated areas, such as Xuzhou and Yancheng. The uncertainty range of S/IVOCs emissions established in this study was −68%∼214%. Industrial process, industrial combustion, and on-road mobile were the sources with higher uncertainties of S/IVOCs emissions. A comprehensive S/IVOCs emission inventory established in this study can be used to estimate the emissions of S/IVOCs in 41 cities over the YRD region and can be applied to air quality models for a better understanding of the formation mechanism of SOA over the YRD region.</div></div>","PeriodicalId":401,"journal":{"name":"Particuology","volume":"100 ","pages":"Pages 186-195"},"PeriodicalIF":4.1,"publicationDate":"2025-03-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143776854","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
ParticuologyPub Date : 2025-03-24DOI: 10.1016/j.partic.2025.03.009
Yunhua Lu , Zhengqing Zhan , Chao Zhang , Qingwei Zhang , Junan Zhang , Feng Zhang , Yanping Chen
{"title":"Hydrogen adsorption on Ga-doped bilayer graphene: A DFT study","authors":"Yunhua Lu , Zhengqing Zhan , Chao Zhang , Qingwei Zhang , Junan Zhang , Feng Zhang , Yanping Chen","doi":"10.1016/j.partic.2025.03.009","DOIUrl":"10.1016/j.partic.2025.03.009","url":null,"abstract":"<div><div>Hydrogen, as an environmentally friendly energy source, is pivotal in its storage methods for its development and effective utilization. Graphene boasts advantages such as high specific surface area, excellent electrical properties, and high tunability, making it highly promising for hydrogen storage applications. Compared to monolayer graphene, bilayer graphene exhibits a more easily controllable bandgap, showcasing its potential for hydrogen storage. Additionally, to further enhance the hydrogen adsorption capability of graphene-based substrates, doping methods are commonly employed to adjust their electrical properties. This study proposes a model for hydrogen adsorption on bilayer graphene to investigate its hydrogen storage capacity. Specifically, density functional theory (DFT) computational methods are utilized to study the adsorption of single and multiple hydrogen molecules on monolayer and bilayer graphene, with or without doping with gallium atoms. Furthermore, the underlying reasons for the enhanced hydrogen adsorption in gallium-doped bilayer graphene are systematically analyzed and elucidated. The research findings indicate that pristine graphene exhibits relatively low sensitivity to hydrogen gas, with adsorption energies of only −0.078 and −0.096 eV for monolayer graphene (MG) and bilayer graphene (BG), respectively. However, upon doping gallium atoms into MG and BG, the adsorption energy significantly increases by approximately 30.8 % and 54.1 %. For adsorbing 8 H<sub>2</sub>, with average adsorption energies reaching -0.102 eV and −0.163 eV, which is primarily due to the electron in the s orbital of H has been transferred to the d orbital of transition metal Ga. These results indicate that gallium-doped bilayer graphene holds great promise as a hydrogen storage material.</div></div>","PeriodicalId":401,"journal":{"name":"Particuology","volume":"100 ","pages":"Pages 103-115"},"PeriodicalIF":4.1,"publicationDate":"2025-03-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143738856","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
ParticuologyPub Date : 2025-03-21DOI: 10.1016/j.partic.2025.03.008
Kedi Yang , Yuxin Tian , Xiaoliang Wang , Qingquan Liu
{"title":"Numerical study of granular flow impacting hemi-spherical structures on steep terrains by a two-phase model with μ(I) rheology closure","authors":"Kedi Yang , Yuxin Tian , Xiaoliang Wang , Qingquan Liu","doi":"10.1016/j.partic.2025.03.008","DOIUrl":"10.1016/j.partic.2025.03.008","url":null,"abstract":"<div><div>Granular flow is prevalent in natural disasters such as landslides and avalanches. Investigating the impact characteristics and load variations of granular flows on structures is vital for disaster prevention and mitigation. This study employs a three-dimensional continuum model combined with the Volume of Fluid method, treating the particle phase as a non-Newtonian fluid based on the <em>μ</em>(<em>I</em>) constitutive model. A numerical solver for non-Newtonian two-phase flow capable of describing granular flows on complex terrains has been implemented. Through simulations of a typical laboratory-scale three-dimensional granular column collapse problem, we present spreading processes and deposition distributions which agree with the experimental results, thereby validating the effectiveness of our numerical approach. Using this model, we examine the dynamic interactions between granular flows and single hemispherical obstacles on steep terrains. The predictions regarding depth-time curves at several critical probes and final deposition profiles demonstrate superior accuracy compared to previous forecasts based on depth-averaged models. Additionally, an analysis of the evolution of impact forces exerted by granular flows on obstacles reveals that shoulder obstacles can significantly mitigate impact forces within primary flow regions. We also give the plugging characteristics of the granular flow near the front of the obstacles. In contrast to traditional depth integration models, our methodology offers enhanced insights into three-dimensional flow dynamics and loading characteristics, providing valuable references for disaster prediction and assessment in practical engineering.</div></div>","PeriodicalId":401,"journal":{"name":"Particuology","volume":"100 ","pages":"Pages 116-127"},"PeriodicalIF":4.1,"publicationDate":"2025-03-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143747511","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
ParticuologyPub Date : 2025-03-18DOI: 10.1016/j.partic.2025.03.006
Linhang Zhu , You Zhang , Zhongyang Zhao , Shihan Zhang , Chenghang Zheng , Kun Luo , Xiang Gao
{"title":"Numerical simulations of a single particle for CO2 capture based on MgO sorbent","authors":"Linhang Zhu , You Zhang , Zhongyang Zhao , Shihan Zhang , Chenghang Zheng , Kun Luo , Xiang Gao","doi":"10.1016/j.partic.2025.03.006","DOIUrl":"10.1016/j.partic.2025.03.006","url":null,"abstract":"<div><div>To obtain a deeper understanding of the mass transfer between MgO-based sorbent particles and gaseous reactants (CO<sub>2</sub>), it is essential to investigate the mass transfer characteristics of a single moving sorbent particle since most previous researches focused on the removal efficiency of the whole flow field and ignored the behavior of individual particles. Currently, most studies assumed that the reactant (CO<sub>2</sub>) concentration across the particle surface is uniform based on the average concentration within the grid, while the reactant concentration on the particle surface changes as the particle moves. In this study, the gas-solid mass transfer between CO<sub>2</sub> and a moving MgO-based particle was investigated. The results indicated that the motion state and velocity of the particles significantly impact the CO<sub>2</sub> removal dynamics and noticeable differences in the CO<sub>2</sub> concentration gradient could be observed around the particle. Increasing the reaction temperature, enhancing the CO<sub>2</sub> mass fraction at the inlet, appropriately increasing the gas velocity, and selecting an appropriate particle size can significantly enhance the reaction rate, thereby improving the CO<sub>2</sub> removal efficiency. The correction formula for surface CO<sub>2</sub> concentration and mass transfer reaction rate was also proposed based on the particle's velocity and direction of movement. Based on the correction formula, more detailed guidance for optimizing reactor design could be obtained and the findings provide theoretical guide for designing CO<sub>2</sub> removal reactors.</div></div>","PeriodicalId":401,"journal":{"name":"Particuology","volume":"100 ","pages":"Pages 166-177"},"PeriodicalIF":4.1,"publicationDate":"2025-03-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143768895","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
ParticuologyPub Date : 2025-03-15DOI: 10.1016/j.partic.2025.03.004
Hao-Bo Zhang , Bo-Bo Zou , Xian Zhong , Xin-He Liu , Kai-Xi You , Xinyan Liu , Hong-Jie Peng
{"title":"Metal valence state-regulated Li bond chemistry for efficient lithium–sulfur battery catalysis: A case study of cupric and cuprous oxides","authors":"Hao-Bo Zhang , Bo-Bo Zou , Xian Zhong , Xin-He Liu , Kai-Xi You , Xinyan Liu , Hong-Jie Peng","doi":"10.1016/j.partic.2025.03.004","DOIUrl":"10.1016/j.partic.2025.03.004","url":null,"abstract":"<div><div>Valence state is identified as a key property of transition metal-based catalysts in conventional heterogeneous catalysis research. For a specific monometal element, however, the regulatory role of valence state has seldom explored in emerging energy catalytic applications such as rechargeable lithium–sulfur batteries suffering from sluggish sulfur cathode conversion kinetics. In this study, two monometal oxides with distinct valence states, cupric oxide (CuO) and cuprous oxide (Cu<sub>2</sub>O), were investigated, revealing valence-state-dependent interactions between oxides and sulfur species, as well as the modulated sulfur reduction reaction (SRR) kinetics. In addition to the inherent Cu<sup>2+</sup>-enabled surface (poly)thiosulfate redox, divalent Cu<sup>2+</sup> and monovalent Cu<sup>+</sup> were found to steer the oxygen reactivity and so indirectly tune the lithium bond strength that dictates the surface chemisorption of lithium (poly)sulfides. The stronger interactions between CuO and sulfur species promoted SRR conversion kinetics, enabling enhanced lithium–sulfur battery performance under kinetically demanding conditions such as high-rate capability at 2 C with a moderate sulfur loading of 1.3 mg cm<sup>−2</sup> and cycling stability for over 110 cycles at a high sulfur loading of 4.8 mg cm<sup>−2</sup>. This work is expected to expand the scope of metal-valence-state effect on heterogeneous catalysis and offer an unconventional “indirect” way to regulate lithium-bond chemistry for battery research.</div></div>","PeriodicalId":401,"journal":{"name":"Particuology","volume":"100 ","pages":"Pages 95-102"},"PeriodicalIF":4.1,"publicationDate":"2025-03-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143696118","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
ParticuologyPub Date : 2025-03-15DOI: 10.1016/j.partic.2025.03.005
Jincheng Liu , Yaowen Xing , Xiahui Gui
{"title":"Hydrodynamics of fluidized bed flotation column: Experimental and statistical analysis","authors":"Jincheng Liu , Yaowen Xing , Xiahui Gui","doi":"10.1016/j.partic.2025.03.005","DOIUrl":"10.1016/j.partic.2025.03.005","url":null,"abstract":"<div><div>The hydrodynamic characteristics in fluidized bed flotation column (FBFC) are critical for optimizing fluidized flotation processes, yet understanding the interactions between operating parameters remains a complex challenge. This study proposes a novel method to classify flow regimes and identify transition velocities in fluidized bed flotation columns. By analyzing gas-solid holdup variations (<span><math><mrow><msub><mi>ε</mi><mrow><mi>g</mi><mo>,</mo><mi>s</mi></mrow></msub></mrow></math></span>) via electrical resistance tomography (ERT), we identified three distinct flow regimes and two transition velocities using <span><math><mrow><msub><mi>ε</mi><mrow><mi>g</mi><mo>,</mo><mi>s</mi></mrow></msub></mrow></math></span>-based criteria. Furthermore, we employed pressure transducer and ERT to analyze how gas velocity (<em>U</em><sub><em>g</em></sub>), water velocity (<em>U</em><sub><em>w</em></sub>), and particle size (<em>D</em><sub><em>p</em></sub>) influence pressure fluctuations, minimum liquid fluidization velocity (<em>U</em><sub><em>mf</em></sub>), and gas and solid hold-ups distributions. Results showed that <em>U</em><sub><em>w</em></sub> and <em>D</em><sub><em>p</em></sub> significantly influenced pressure fluctuations, while <em>U</em><sub><em>g</em></sub> affected pressure fluctuations mainly for large particles. <em>U</em><sub><em>mf</em></sub> increased with <em>D</em><sub><em>p</em></sub> but remained unaffected by <em>U</em><sub><em>g</em></sub>. Higher <em>U</em><sub><em>w</em></sub> and <em>D</em><sub><em>p</em></sub> led to more uniform distributions of radial gas and solid hold-ups, with U<sub>g</sub> influencing distribution only in the fixed bed regime. Finally, the using Box-Behnken design (BBD) and analysis of variance (ANOVA), significant interactions between <em>U</em><sub><em>g</em></sub> and <em>D</em><sub><em>p</em></sub> for the average differential pressure, and between <em>U</em><sub><em>w</em></sub> and <em>D</em><sub><em>p</em></sub> for <span><math><mrow><msub><mi>ε</mi><mrow><mi>g</mi><mo>,</mo><mi>s</mi></mrow></msub></mrow></math></span> were identified, with no significant interactions for normalized standard deviation of differential pressure fluctuation. Predictive models with high correlation coefficients were established for these interactions, offering guidance for FBFC optimization.</div></div>","PeriodicalId":401,"journal":{"name":"Particuology","volume":"100 ","pages":"Pages 14-26"},"PeriodicalIF":4.1,"publicationDate":"2025-03-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143682817","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}