Particuology最新文献_第5页

Numerical investigation of lunar dust particle deposition in human terminal alveoli 月尘颗粒在人体末端肺泡沉积的数值研究

IF 4.3 2区材料科学

Particuology Pub Date : 2026-02-01 Epub Date: 2025-11-27 DOI: 10.1016/j.partic.2025.11.015

Jintao Wang , Bin Wu , Yuan Xue , Hao Jing , Xinguang Cui

{"title":"Numerical investigation of lunar dust particle deposition in human terminal alveoli","authors":"Jintao Wang , Bin Wu , Yuan Xue , Hao Jing , Xinguang Cui","doi":"10.1016/j.partic.2025.11.015","DOIUrl":"10.1016/j.partic.2025.11.015","url":null,"abstract":"<div><div>To ensure the health and safety of astronauts during future manned lunar missions, it is critical to understand the transport and deposition of lunar dust (LD) particles in the terminal alveoli. This study employs computational fluid dynamics (CFD) to investigate the deposition characteristics of LD particles, considering factors such as particle size, activity intensity, and body posture. The key findings are: (1) The deposition characteristics of LD particles differ significantly across various activity intensities, with higher activity levels resulting in earlier onset and shorter duration of deposition. (2) The distributions and rates of deposited particles on the alveolar wall vary with different body postures. Specifically, transitioning from a head-up to a head-down posture leads to a reduction of 4.51 times in deposition time. (3) A predictive equation has been developed that effectively estimates LD particle deposition in the terminal alveoli by accounting for particle size, activity level, and body posture. In conclusion, LD particles display diverse deposition characteristics in the terminal alveoli, which can be accurately predicted using an appropriate fitting equation. The findings of this study may significantly enhance astronaut safety and well-being during future manned space exploration missions.</div></div>","PeriodicalId":401,"journal":{"name":"Particuology","volume":"109 ","pages":"Pages 75-85"},"PeriodicalIF":4.3,"publicationDate":"2026-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145789193","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}

引用次数: 0

Reducing particle aggregation and pressure drop in vertical hydraulic transport through swirling flow optimization 通过旋流优化降低垂直水力输送中的颗粒聚集和压降

IF 4.3 2区材料科学

Particuology Pub Date : 2026-02-01 Epub Date: 2026-01-02 DOI: 10.1016/j.partic.2025.12.010

Lele Yang , Xiaodong Chen , Ke Zhang , Yue Wu , Peng Li , Jianhou Zhou

{"title":"Reducing particle aggregation and pressure drop in vertical hydraulic transport through swirling flow optimization","authors":"Lele Yang , Xiaodong Chen , Ke Zhang , Yue Wu , Peng Li , Jianhou Zhou","doi":"10.1016/j.partic.2025.12.010","DOIUrl":"10.1016/j.partic.2025.12.010","url":null,"abstract":"<div><div>In vertical hydraulic conveyance for deep-sea mining, localized particle aggregation can occur due to multiple factors, resulting in increased concentration and degrade transport performance. To mitigate this issue, this study proposes a novel deflector vane-type swirl generator with a simple structure that generates swirling flow without additional operations. A combined computational fluid dynamics (CFD) and discrete element method (DEM) has been used to numerically simulate liquid-solid swirling flow in a vertical pipe featuring the vane. Subsequently, an orthogonal design method was applied to evaluate the effects of vane number, vane angle, vane radius, and hub diameter on transport behavior, using the horizontal dispersion coefficient and pressure drop as performance indicators. The results demonstrate that the vane angle is the most influential factor for both particle dispersion and pressure loss, whereas vane number and vane radius have comparatively minor effects. Moreover, increasing the vane angle and hub diameter strengthens the swirl intensity, promotes particle accumulation near the pipe wall, and thereby increases the horizontal dispersion coefficient. The results offer insights that can inform the enhancement of the efficiency and safety of vertical hydraulic transport.</div></div>","PeriodicalId":401,"journal":{"name":"Particuology","volume":"109 ","pages":"Pages 258-269"},"PeriodicalIF":4.3,"publicationDate":"2026-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145973607","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}

引用次数: 0

Preparation of cold-bonded ceramsite based on particle packing theory and high-efficiency utilization of granite powder 基于颗粒充填理论及花岗岩粉体高效利用的冷粘陶粒制备

IF 4.3 2区材料科学

Particuology Pub Date : 2026-02-01 Epub Date: 2025-12-09 DOI: 10.1016/j.partic.2025.12.002

Hongqiang Li, Hui Li, Yueyao Zhao, Hongbo Cui, Wukui Zheng

{"title":"Preparation of cold-bonded ceramsite based on particle packing theory and high-efficiency utilization of granite powder","authors":"Hongqiang Li, Hui Li, Yueyao Zhao, Hongbo Cui, Wukui Zheng","doi":"10.1016/j.partic.2025.12.002","DOIUrl":"10.1016/j.partic.2025.12.002","url":null,"abstract":"<div><div>The utilization of granite powder (GP) is substantially limited by its low pozzolanic activity and inert structure, posing a significant challenge for its high-volume incorporation. This study conducts experimental research on cold-bonded ceramsite based on the GP–fly ash–cement system, adopting the modified Andreasen–Andersen (MAA) particle packing model as a tool for mix ratio design and evaluation. By designing multiple groups of different particle size combinations, the raw material particle gradation is made to produce controllable deviations from the MAA target curve within a certain range. RSS is used to quantitatively characterize the degree of deviation of the particle gradation from the MAA target curve, and the influence mechanism of this deviation on the physical properties and pore structure of ceramsite is systematically analyzed. The results indicated that an RSS value of 6736 yielded the most compact ceramsite structure, which exhibited a cylinder compressive strength of 5.76 MPa, a bulk density of 1041 kg/m<sup>3</sup>, and a water absorption as low as 12.65 %. Further particle size fractionation experiments revealed that single-size raw material systems performed significantly worse than full-range particle distributions. The latter facilitated the formation of a skeleton–filler collaborative structure, thereby enhancing compactness and mechanical stability. Compared with existing utilization pathways of GP, the proposed structure-regulated preparation strategy for cold-bonded ceramsite enables up to 85 % incorporation of GP and delivers comprehensive performance improvement without reliance on high-temperature sintering or alkali activation. This approach demonstrates considerable engineering feasibility and application potential, providing a novel perspective and theoretical foundation for the high-efficiency valorization of low-activity solid wastes.</div></div>","PeriodicalId":401,"journal":{"name":"Particuology","volume":"109 ","pages":"Pages 86-98"},"PeriodicalIF":4.3,"publicationDate":"2026-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145838163","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}

引用次数: 0

Stable flow characteristics of Geldart C desulfurization ash particles in a novel loop-coupled riser under swirling-flow enhancement 旋流强化下新型环耦合立管中Geldart C脱硫灰颗粒的稳定流动特性

IF 4.3 2区材料科学

Particuology Pub Date : 2026-02-01 Epub Date: 2026-01-08 DOI: 10.1016/j.partic.2026.01.001

Zhihui Li, Xueyan Jiao, Yumei Li, Xiao Ma, Chengxiu Wang, Xingying Lan, Jinsen Gao

{"title":"Stable flow characteristics of Geldart C desulfurization ash particles in a novel loop-coupled riser under swirling-flow enhancement","authors":"Zhihui Li, Xueyan Jiao, Yumei Li, Xiao Ma, Chengxiu Wang, Xingying Lan, Jinsen Gao","doi":"10.1016/j.partic.2026.01.001","DOIUrl":"10.1016/j.partic.2026.01.001","url":null,"abstract":"<div><div>During the flue gas desulfurization process with the circulating fluidized bed (CFB) reactor, Geldart C desulfurization ash particles are prone to aggregation and accumulation in the inlet region, which significantly impairs gas-solid contact. To address this challenge, the present study proposes a novel design that couples a loop reactor to the bottom of the riser and employs a tangential intake structure. This combination generates a swirling flow to enhance the fluidization performance of Geldart C particles in the inlet region of the CFB reactor, thereby improving gas-solids contact efficiency. Under a superficial gas velocity of 1.5–4.5 m/s, the tangential intake configuration facilitates the formation of draft tube-lift loop flow when the draft tube gas velocity exceeds 1.10 m/s. In comparison, the vertical intake requires a gas velocity in the draft tube region greater than 1.20 m/s, while the coiled intake demands 1.25 m/s. Furthermore, the swirling-flow from tangential intake effectively entrains more Geldart C particles into the internal loop flow and external circulation, increasing the solids circulation rate from 7.0 to 10.0 kg/(m<sup>2</sup> s), an increase of 42.9 %. These findings offer a valuable insight for the industrial application of Geldart C particles in CFB systems.</div></div>","PeriodicalId":401,"journal":{"name":"Particuology","volume":"109 ","pages":"Pages 219-230"},"PeriodicalIF":4.3,"publicationDate":"2026-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145973603","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}

引用次数: 0

Synthesis of MWCNT/Inconel 718 composite powder through mild surface functionalization and High-Energy Ball Milling for subsequent use in additive manufacturing of MMC parts 通过温和的表面功能化和高能球磨合成MWCNT/Inconel 718复合粉末，用于MMC零件的增材制造

IF 4.3 2区材料科学

Particuology Pub Date : 2026-02-01 Epub Date: 2026-01-02 DOI: 10.1016/j.partic.2025.12.017

Prasenjit Patra , Saikat Nandi , Saurav Misra , Partha Saha , Pranab K. Dan

{"title":"Synthesis of MWCNT/Inconel 718 composite powder through mild surface functionalization and High-Energy Ball Milling for subsequent use in additive manufacturing of MMC parts","authors":"Prasenjit Patra , Saikat Nandi , Saurav Misra , Partha Saha , Pranab K. Dan","doi":"10.1016/j.partic.2025.12.017","DOIUrl":"10.1016/j.partic.2025.12.017","url":null,"abstract":"<div><div>This study presents a systematic methodology for producing multi-walled carbon nanotubes (MWCNTs)/Inconel 718 composite powder, especially for the Laser Directed Energy Deposition (LDED) process. This approach integrates mild oxidative functionalization of MWCNTs to reduce agglomerations and High-Energy Ball Milling (HEBM) to enhance dispersion over the Inconel 718 powder. The MWCNTs were functionalized through a two-step chemical treatment: (1) magnetic stirring in a 3:1 H<sub>2</sub>SO<sub>4</sub> and HNO<sub>3</sub> solution, using two distinct acid concentrations (3 M and 8 M), followed by (2) an ultrasonic bath in H<sub>2</sub>O<sub>2</sub> solution. Structural defects were characterized using Raman spectroscopy (RS), thermogravimetric analysis (TGA), and transmission electron microscopy (TEM), while X-ray photoelectron spectroscopy (XPS) quantified the amount of oxygen-containing functional groups. Among the six functionalization processes, the treatment condition involving 4 h of magnetic stirring, then 2 h in the sonication bath, emerged as optimal, yielding a relatively high functional group attachment (11.47 %) with lower surface defects and without compromising uniformity in mixing. The FESEM analysis of the functionalized MWCNTs (up to 2 wt%)/Inconel 718 composite powder, collected from the LDED machine bed, confirmed uniform dispersion, validating the functionalization strategy. Although developed for LDED, this strategy is also suitable for MMC production processes that use powder as feedstock.</div></div>","PeriodicalId":401,"journal":{"name":"Particuology","volume":"109 ","pages":"Pages 99-116"},"PeriodicalIF":4.3,"publicationDate":"2026-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145922226","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}

引用次数: 0

MXene-assisted NiFe sulfides with interfacial modulation for oxygen evolution electrocatalysis 界面调制的mxene辅助NiFe硫化物的析氧电催化

IF 4.3 2区材料科学

Particuology Pub Date : 2026-02-01 Epub Date: 2026-01-02 DOI: 10.1016/j.partic.2025.12.020

Pei-Wei Zhong , Hong-Xiao Yang , Wenkang Xu, Zhiyang Yu, Bei Li, Hongjuan Wang, Yonghai Cao, Hao Yu, Hao-Fan Wang

{"title":"MXene-assisted NiFe sulfides with interfacial modulation for oxygen evolution electrocatalysis","authors":"Pei-Wei Zhong , Hong-Xiao Yang , Wenkang Xu, Zhiyang Yu, Bei Li, Hongjuan Wang, Yonghai Cao, Hao Yu, Hao-Fan Wang","doi":"10.1016/j.partic.2025.12.020","DOIUrl":"10.1016/j.partic.2025.12.020","url":null,"abstract":"<div><div>Oxygen evolution reaction (OER) plays a vital role in various pivotal electrochemical applications. To improve the energy efficiency and economic viability of these technologies, it is critical to develop cost-effective and highly active OER electrocatalysts based on earth-abundant elements. Among various candidates, transition-metal-based compounds have demonstrated notable potential for OER electrocatalysis, attributable to their adjustable electronic configurations. Nevertheless, their practical application remains constrained by limited intrinsic activity, poor electrical conductivity, and particle aggregation, which compromise their overall OER efficiency. In this study, an efficient OER electrocatalyst, S-NiFc MOF@Mo<sub>2</sub>CT<sub><em>x</em></sub>, is constructed by the sulfidation of NiFe-based metal–organic framework (MOF) precursors anchored on conductive Mo<sub>2</sub>CT<sub><em>x</em></sub> MXene. The MOF-derived NiFe sulfides offer abundant accessible active sites, and the strong interfacial coupling between NiFe sulfides and Mo<sub>2</sub>CT<sub><em>x</em></sub> enhances the catalyst's intrinsic activity. The conductive Mo<sub>2</sub>CT<sub><em>x</em></sub> matrix also guarantees efficient electron transport and homogeneous dispersion of the active phase. As a result, S-NiFc MOF@ Mo<sub>2</sub>CT<sub><em>x</em></sub> exhibits excellent OER activity, reaching 10 mA cm<sup>−2</sup> at an overpotential of 223 mV, along with stable operation for 68 h in 1.0 M KOH solution. This study broadens the scope of MXene-based materials in electrocatalytic applications and offers valuable insights into optimizing NiFe-derived OER catalysts.</div></div>","PeriodicalId":401,"journal":{"name":"Particuology","volume":"109 ","pages":"Pages 211-218"},"PeriodicalIF":4.3,"publicationDate":"2026-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145922234","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}

引用次数: 0

Particle-resolved CFD study of liquid axial penetration and lateral spreading in an ordered trickle bed reactor 有序滴流床反应器中液体轴向渗透和横向扩散的颗粒解析CFD研究

IF 4.3 2区材料科学

Particuology Pub Date : 2026-02-01 Epub Date: 2026-01-12 DOI: 10.1016/j.partic.2025.12.025

A. Tavanaei , D.R. Rieder , M.W. Baltussen , K.A. Buist , J.A.M. Kuipers

{"title":"Particle-resolved CFD study of liquid axial penetration and lateral spreading in an ordered trickle bed reactor","authors":"A. Tavanaei , D.R. Rieder , M.W. Baltussen , K.A. Buist , J.A.M. Kuipers","doi":"10.1016/j.partic.2025.12.025","DOIUrl":"10.1016/j.partic.2025.12.025","url":null,"abstract":"<div><div>Trickle bed reactors are frequently applied in the chemical process industries for gas-liquid-solid contacting. The performance of these reactors is sensitively influenced by the hydrodynamics. This study focuses on investigating the complex interaction between the gas and liquid phases in these reactors. Specifically, the effects of inlet liquid flux, surface wettability, and gas velocity on lateral spreading and axial penetration of the liquid are explored. An ordered trickle bed is used to reduce the effects of the configuration of the particles on these parameters. Using Direct Numerical Simulation (DNS), we determined that the lateral spreading and axial penetration are enhanced with an increased liquid flux, as expected. Interestingly, the initial liquid inertia, represented by the liquid jet velocity, has limited influence on both lateral spreading and axial penetration in the ordered bed, while the gravitational force is the dominant factor for the axial penetration. Furthermore, the contact angle has minimal impact on lateral spreading, indicating the presence of an additional force restricting spreading. Notably, the gas velocity is identified as a crucial factor influencing lateral spreading, as high velocities prevent the capillary forces from spreading the liquid. These insights in the contributing forces on the spreading behaviour in trickle bed reactors facilitate an improved reactor design and optimization.</div></div>","PeriodicalId":401,"journal":{"name":"Particuology","volume":"109 ","pages":"Pages 302-311"},"PeriodicalIF":4.3,"publicationDate":"2026-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146074241","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}

引用次数: 0

Corrigendum to “Recent advances in inkjet printing synthesis of functional metal oxides” [Particuology 19 (2015) 1–13] “功能金属氧化物喷墨打印合成的最新进展”的勘误表[Particuology 19 (2015) 1-13]

IF 4.3 2区材料科学

Particuology Pub Date : 2026-02-01 Epub Date: 2025-12-17 DOI: 10.1016/j.partic.2025.12.003

Xiaonao Liu , Tzyh-Jong Tarn , Fenfen Huang , Jie Fan

引用次数: 0

Numerical simulation and experimental study on PM2.5 capture performance of multiple electric field ESP under different magnetic field introduction positions 不同磁场引入位置下多电场电潜泵捕获PM2.5性能的数值模拟与实验研究

IF 4.3 2区材料科学

Particuology Pub Date : 2026-02-01 Epub Date: 2026-01-02 DOI: 10.1016/j.partic.2025.12.009

Shengxin Yang , Jianping Zhang , Boren Wang , Wen Gu , Weiguo Zhou

{"title":"Numerical simulation and experimental study on PM2.5 capture performance of multiple electric field ESP under different magnetic field introduction positions","authors":"Shengxin Yang , Jianping Zhang , Boren Wang , Wen Gu , Weiguo Zhou","doi":"10.1016/j.partic.2025.12.009","DOIUrl":"10.1016/j.partic.2025.12.009","url":null,"abstract":"<div><div>Aiming at enhancing the capture performance of electrostatic precipitator (ESP) for PM2.5 particles, this paper introduces a multi-field coupling model and carries out the analysis of the electromagnetic dedusting mechanism of four electric field ESP under the magnetic-field-induced trajectory modification, and investigates the capture performance of multiple electric field ESP for PM2.5 particles at different magnetic field introduction positions through numerical simulations and PIV (Particle Image Velocimetry) experiments. The PIV measurements showed flow-field patterns that were consistent with established ESP findings, where higher applied voltage and lower flue-gas velocity lead to stronger particle deflection toward the collection plate. These observed trends serve as a validation of the reliability of the present PIV setup and simulation model. Introducing a magnetic field into a specific zone resulted in particles to follow a spiral path leading to the collection plate. This motion not only altered the paths of particles in the targeted region but also influenced adjacent zones. Magnetic confinement was found to be more effective under low flue gas velocity and low operating voltage conditions. Furthermore, at lower voltages, the third electric field was more sensitive to magnetic confinement, whereas at higher voltages, the fourth electric field exhibited greater sensitivity. The findings can offer new design ideas for performance enhancement of traditional ESPs.</div></div>","PeriodicalId":401,"journal":{"name":"Particuology","volume":"109 ","pages":"Pages 117-126"},"PeriodicalIF":4.3,"publicationDate":"2026-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145922227","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}

引用次数: 0

Shale oil hydro-upgrading over NiMo/Al2O3 with H2-rich gas from methanol steam reforming 甲醇蒸汽重整富h2气在NiMo/Al2O3上对页岩油加氢提质

IF 4.3 2区材料科学

Particuology Pub Date : 2026-02-01 Epub Date: 2026-01-02 DOI: 10.1016/j.partic.2025.12.011

Xiaoyu Wu , Mengjuan Zhang , Chao Wang , Chenhong Wan , Peng Zheng , Zhennan Han , Xin Jia , Zhanguo Zhang , Guangwen Xu

{"title":"Shale oil hydro-upgrading over NiMo/Al2O3 with H2-rich gas from methanol steam reforming","authors":"Xiaoyu Wu , Mengjuan Zhang , Chao Wang , Chenhong Wan , Peng Zheng , Zhennan Han , Xin Jia , Zhanguo Zhang , Guangwen Xu","doi":"10.1016/j.partic.2025.12.011","DOIUrl":"10.1016/j.partic.2025.12.011","url":null,"abstract":"<div><div>This article investigated the hydrodesulfurization of shale oil over NiMo/Al<sub>2</sub>O<sub>3</sub> catalyst in a fixed bed reactor downstream a methanol steam reformer that provides H<sub>2</sub>-rich gas containing CO<sub>2</sub> and steam. Under the optimal conditions of hydrogenation, say, at 380 °C, 4 MPa, a gas/oil volume ratio of 600:1, and an oil hourly space velocity of 4.0 h<sup>−1</sup>, the sulfur content in the upgraded shale oil varied around 4400 ppm, showing a sulfur removal efficiency above 66 % and the satisfaction of the international standard for marine fuel oil (ISO 8217). The oil exhibited significant improvement on quality, including enhanced calorific value, reduced density and viscosity, increased fraction of light oil, and decreased proportion of heavy oil. Through characterization of catalysts, it was found that steam in H<sub>2</sub>-rich gas did not significantly affect hydrodesulfurization efficiency. The presence of steam not only promoted hydrocracking of heavy fractions but reduced also carbon deposition on the catalyst during hydro-processing. A 125-h continuous test on stability of performance further corroborated the technical feasibility of the investigated process, establishing essentially a practical pathway to upgrade shale oil by using the as-generated methanol-reformed gas without removal of its containing CO<sub>2</sub> and steam as the hydrogen source.</div></div>","PeriodicalId":401,"journal":{"name":"Particuology","volume":"109 ","pages":"Pages 292-301"},"PeriodicalIF":4.3,"publicationDate":"2026-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145973602","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}

引用次数: 0