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Sustainable energy recovery from salt-lake brines through a novel selective reverse electrodialysis process Chem. Eng. Sci. (IF 4.7) Pub Date : 2024-03-12 Wending Zhu, Xu Zhang, Zhiqi Bao, Xianglu Zhang, Yang Zhang, Yuting Yuan, Chenxiao Jiang, Qiuhua Li, Guanping Jin, Xiaozhao Han
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Pore structure-transport relationships in high-temperature shift catalyst pellets studied by integrated multiscale porosimetry and X-ray tomography Chem. Eng. Sci. (IF 4.7) Pub Date : 2024-03-12 Suleiman Mousa, Toby Beech, Emma Softley, Robin S. Fletcher, Gordon Kelly, Emily Viney, Sean P. Rigby
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An efficient and stable LDH-derived Ni catalyst for highly selective hydrogenation of nitriles to primary amines Chem. Eng. Sci. (IF 4.7) Pub Date : 2024-03-12 Yanlin Xu, Jiahao Zhang, Peixia Wang, Yiwei Fan, Xiaonan Duan, Yingying Li, Jisong Zhang
Scheme 1 Schematic presentation of highly selective conversion of nitriles to primary amines on a yolk-shell structured Zr-assisted Ni-based catalyst derived from double layered hydroxides.
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Acidity-controlled hollow HZSM-5 for lignite pyrolysis volatiles valorization to light aromatics Chem. Eng. Sci. (IF 4.7) Pub Date : 2024-03-12 Jing-Ping Zhao, Jing-Pei Cao, Fu Wei, Feng Chen, Nai-Yu Yao, Xin-Bo Pang, Shi-Jie Cai, Feng-Jiao Yi, Xiao-Bo Feng, Xiao-Yan Zhao
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An investigation of flow regimes and mixing in a novel arrow-shaped jet reactor Chem. Eng. Sci. (IF 4.7) Pub Date : 2024-03-12 Licheng Xue, Gang Liu, Yue Wang, Zongrui Hao, Haiyan Bie
Fluid mixing plays a vital role in the industry of chemical engineering. In this work, a novel arrow-shaped jet reactor by varying the angle of fluid impingement in the inlet channel was investigated. Flow field visualization experiments using Planar Laser-Induced Fluorescence (PLIF) technique were carried out to study various flow regimes and mixing performance. Results show that differentiated flow
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Formation of viscoelastic droplets in symmetrical parallelized microchannels Chem. Eng. Sci. (IF 4.7) Pub Date : 2024-03-12 Han Wang, Yanpeng Dong, Zihang Lei, Chunying Zhu, Xianbao Cui, Youguang Ma, Taotao Fu
The dynamics of viscoelastic droplets and the distribution of viscoelastic fluids in symmetrical parallelized microchannels are studied by using a high-speed camera. Typical parallel and slug flows are observed. The droplet formation process is divided into four stages, and the pinch-off point of the droplet moves downstream under high dispersed phase flow rates. When the flow rate ratio of the continuous
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Development of a neural network model predictive controller for the fluidized bed biomass gasification process Chem. Eng. Sci. (IF 4.7) Pub Date : 2024-03-12 Ibtihaj Khurram Faridi, Evangelos Tsotsas, Wolfram Heineken, Marcus Koegler, Abdolreza Kharaghani
In this study, an advanced controller for the fluidized bed biomass gasification (FBG) process is proposed. The controller is based on the model predictive control method, utilizing a long short-term memory neural network to accurately predict the controlled variable in the FBG process. Then, employing a gradient-based optimization algorithm, it optimizes the inputs to achieve the desired control objective
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Exploring the impact of pillar edge effects on water drop evaporation Chem. Eng. Sci. (IF 4.7) Pub Date : 2024-03-12 Merav Arogeti, Alexander Shapiro
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Modelling of the leaching process by the extended quadrature method of moments Chem. Eng. Sci. (IF 4.7) Pub Date : 2024-03-12 Mohsen Shiea, Luigi Crema, Edoardo Gino Macchi
An approach based on the extended quadrature method of moments (EQMOM) has been developed to solve the population balance equation written for the evolution of shrinking-core particles in transient leaching processes. It has been shown that the EQMOM can naturally address the dependency of the shrinkage-core model on the unreacted core size and outer size of particles. The approach has been validated
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Ammonia absorption by water droplet in a small controlled atmosphere wind tunnel Chem. Eng. Sci. (IF 4.7) Pub Date : 2024-03-11 Jinbao Bai, Weifeng Wang, Guopan Qiu, Xin Huang, Pengbo Yin, Zhenchao Li, Lin Teng
The mass transfer characteristics during ammonia absorption into a sessile water droplet in a small controlled-atmosphere wind tunnel were investigated using particle tracking velocimetry (PTV) with polystyrene microspheres. The results showed that the flow field inside the droplet transformed from Marangoni convection to Rayleigh convection in the absence of gas flow. As the gas velocity increased
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Kinetic study on CO2 absorption by aqueous secondary amine + tertiary amine blends: Kinetic model and effect of the chain length of tertiary amine Chem. Eng. Sci. (IF 4.7) Pub Date : 2024-03-11 Ding Wei, Jialuo Xiang, Qinlan Luo, Yu Mao, Xiao Luo, Yangqiang Huang, Zhiwu Liang
To study the reaction kinetic of CO absorption in aqueous secondary amine + tertiary amine blends, 1-Diethylamino-2-propanol (DEA2P) and 1-Dimethylamino-2-propanol (DMA2P) were selected to form aqueous amine blended solutions with 2-(Ethylamino) ethanol (EAE), respectively. The reaction kinetics of CO absorption in aqueous EAE/DEA2P solutions and EAE/DMA2P solutions were explored using the stopped-flow
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A phenomenological design method of the parallel packed bed reactors for chemical looping combustion of gas fuels Chem. Eng. Sci. (IF 4.7) Pub Date : 2024-03-11 Xi Chen, Haibo Zhao
The parallel packed bed reactor (PPBR) is a promising route for industrial application of chemical looping combustion. This paper introduces a phenomenological approach for the rational design of PPBR, serving as a manner to efficiently obtain comprehensive design results. Based on the macroscopic propagation of heat and reaction fronts, it elucidates the dynamic heat/mass transfer within the bed.
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CO2 sequestration by ammonia-enhanced phosphogypsum mineral carbonation: Development and optimization of reaction kinetic model Chem. Eng. Sci. (IF 4.7) Pub Date : 2024-03-11 Yi Su, Borui Li, Wu Zhou, Weizhe Jie, Yang Li, Hua Zhang, Hongwei Ni
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Tracking methanol oxidation reaction from OH* as guiding agent Chem. Eng. Sci. (IF 4.7) Pub Date : 2024-03-10 Wenzhi Huang, Kaiyang Xu, Lecheng Liang, Kaixiang Shi, Yuying Zheng, Yonggang Min, Zhiming Cui, Quanbing Liu
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ZSM-5@MOF-199 core-shell composite adsorbent: Rapid ambient synthesis and CO/CO2 adsorption Chem. Eng. Sci. (IF 4.7) Pub Date : 2024-03-10 Farshad Feyzbar-Khalkhali-Nejad, Seyed Morteza Taghavi Kouzehkanan, Ehsan Hassani, Bahareh Hassani, Hossein Jahromi, Sushil Adhikari, Tae-Sik Oh
Using a hydroxy double salt intermediate, we demonstrated rapid room temperature fabrication of ZSM-5@MOF-199 core–shell sorbents. Copper chloride was compatible with the ZnO-assisted MOF growth scheme. The structural and chemical properties of the composite were fine-tuned through either the core or the shell modification, targeting a superior adsorption capacity for CO and CO compared to parent adsorbents
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Comparison of three droplet microreactors for the continuous production of nano and micro particles Chem. Eng. Sci. (IF 4.7) Pub Date : 2024-03-09 Konstantinos Tsachouridis, Ying Zhou, Antonios D. Anastasiou
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Insight into the catalytic behavior of ionic liquids and deactivation suppression technique in naphthalene alkylation Chem. Eng. Sci. (IF 4.7) Pub Date : 2024-03-09 Qiong Tang, Zhiping Zhao, Jun Han, Yuqi Shen, Leizhen Ge, Ting Li, Jinxiang Dong, Lei Liu
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Machine learning and DFT coupling: A powerful approach to explore organic amine catalysts for ring-opening polymerization reaction Chem. Eng. Sci. (IF 4.7) Pub Date : 2024-03-08 Haoliang Zhong, Ying Wu, Xu Li, Tongfei Shi
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ABO3 perovskite catalyst screening for chemical looping methane partial oxidation from descriptor-based microkinetic analysis Chem. Eng. Sci. (IF 4.7) Pub Date : 2024-03-08 Zi-Hua Niu, Jie Yang, Ze-Yi Zhou, Ming Lei, Zhi-Jun Sui, De Chen, Xing-Gui Zhou, Yi-An Zhu
DFT calculations and descriptor-based microkinetic analysis have been performed to screen ABO perovskite catalysts for methane partial oxidation. The scaling relations indicate the adsorption energies of H@O and CH@B have the capability of representing the energetics of methane oxidation, and bulk oxygen vacancy formation energy is identified to be a better single descriptor of the kinetics. The resultant
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AI-based optimal control of fed-batch biopharmaceutical process leveraging deep reinforcement learning Chem. Eng. Sci. (IF 4.7) Pub Date : 2024-03-08 Haoran Li, Tong Qiu, Fengqi You
Optimal control of the fed-batch biopharmaceutical process remains an open research and industrial challenge. The fed-batch process is characterized by non-steady operation, partially observable states, and batch uncertainties. Recently, deep reinforcement learning (DRL) has emerged as a powerful tool for chemical process systems. However, directly applying DRL to the simulation-based biopharmaceutical
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Adjoint optimization of a supersonic ejector for under-expanded, isentropic, and over-expanded primary flow modes Chem. Eng. Sci. (IF 4.7) Pub Date : 2024-03-08 Mohammad Ali Talebiyan, Mahdi Nili-Ahmadabadi, Man Yeong Ha
The geometric shape of an ejector’s walls plays an important role in the efficiency of the ejector. Depending on the outlet-to-throat area ratio of the primary nozzle, the flow exiting the primary nozzle of a supersonic ejector is categorized as under-expanded, isentropic, or over-expanded. Due to differences in the flow structures exiting the primary nozzle, the optimal shapes of the mixing chamber
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Effective prevention of structure II gas hydrate formation using the newly synthesized kinetic inhibitors Chem. Eng. Sci. (IF 4.7) Pub Date : 2024-03-07 Dmitriy Gnezdilov, Mikhail Varfolomeev, Abdolreza Farhadian, Roman Pavelyev, Matvei Semenov, Yulia Chirkova, Sergei Nazarychev, Ekaterina Balachina, Anton Semenov, Andrey Stoporev
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Efficient tracking of Vapor-Liquid-Aqueous-Equilibrium/Liquid-Liquid-Aqueous-Equilibrium (VLAE/LLAE) phase boundaries Chem. Eng. Sci. (IF 4.7) Pub Date : 2024-03-07 Zhuo Chen, Jialin Shi, Ying Zhou, Ruixue Li, Huazhou Li
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A conical shaped self-healing slippery film for enhanced fog harvesting in windy environment Chem. Eng. Sci. (IF 4.7) Pub Date : 2024-03-07 Kaimin Deng, Xiangyi Zhang, Dongdong Ma, Mengyao Zhu, Huiyu Yang, Shaojin Gu, Xin Liu, Bin Shang
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Continuous Cu/keto-ABNO catalyzed aerobic oxidation of ethyl lactate to ethyl pyruvate in a micro-packed bed reactor: Process optimization and reaction kinetics Chem. Eng. Sci. (IF 4.7) Pub Date : 2024-03-06 Chenghao Zhang, Jing Luo, Bingqi Xie, Wei Liu, Jisong Zhang
Pyruvic acid and its esters are increasingly utilized as precursors for synthesizing antioxidations or dietary supplement in the pharmaceutical industry. The selectivity of oxidation step holds paramount importance in the synthesis route. In this study, a continuous micro-packed bed reactor platform is developed to determine the kinetic parameters of Cu/keto-ABNO catalyzed aerobic ethyl lactate (EL)
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A core-shell IL@MOF composite with ultra-high selectivity in multiple CO2 purification systems Chem. Eng. Sci. (IF 4.7) Pub Date : 2024-03-06 Chengming Guo, Pengtao Guo, Youbin Zhou, Xin Yan, Huifang Li, Dahuan Liu
[TETA][Lys]@ZIF-8 is a solid adsorbent material designed and synthesized based on the dissolution-diffusion mechanism. It selectively captures CO by virtue of the high solubility of the surface IL layer for CO, while concurrently excluding other gases by their low solubility.
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Ganglion startup in porous media Chem. Eng. Sci. (IF 4.7) Pub Date : 2024-03-06 Chuanxi Wang, Ke Xu
In porous media, dispersed fluid ganglia (bubbles, droplets) largely shape flow, transport, and chemical reactions. Static trapping and steady-state mobilization of ganglia have been extensively studied. However, the transition from trapping to mobilization (ganglia startup) has received less attention. Here we investigate ganglia startup in a 2-D uniform porous medium subject to an external field
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Structure–property correlations for composite hydrogels based on poly(methacrylic acid) and high concentrations of LTA zeolite Chem. Eng. Sci. (IF 4.7) Pub Date : 2024-03-06 Vesna V. Panic, Jelena D. Jovanovic, Jelena P. Spasojevic, Sanja I. Savic, Maja D. Markovic, Aleksandra M. Radulovic, Borivoj K. Adnadjevic
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Study on eliminating severe slugging by manual and automatic choking in long pipeline-riser system Chem. Eng. Sci. (IF 4.7) Pub Date : 2024-03-06 Xiangyuan Zhao, Qiang Xu, Jiqiang Fu, Yingjie Chang, Quanhong Wu, Liejin Guo
Severe slugging produces huge fluctuations of pressure and flow rate, which is often eliminated by choking because of its easy operation and good performance. However, most published studies on choking are conducted in short-distance pipelines at atmospheric pressure, which is far from the oilfield conditions. In this paper, study on the influence of choking on severe slugging characteristics and control
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Electrically driven coalescence of charged conical droplet in non-uniform electric field Chem. Eng. Sci. (IF 4.7) Pub Date : 2024-03-06 Dongbao Wang, Junfeng Wang, Daorui Wang, Qinsheng Bi
The dynamic behaviors of charged droplet coalescence in electric field has drawn much attention over the past decades due to its complex underlying physics and potential industrial application. This work experimentally investigated asymmetric coalescence dynamics of conical droplets in non-uniform electric field. With the effect of electric field, the cone apexes of deformed droplets merged with each
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Transient kinetic analysis of CO oxidation over a Cu-SSZ-13 catalyst proves complete conversion of ZCu2+(OH)- cations to binuclear Cu2+ species Chem. Eng. Sci. (IF 4.7) Pub Date : 2024-03-06 Umberto Iacobone, William S. Epling, Isabella Nova, Enrico Tronconi
The nuclearity of Cu species active in the low-temperature Reduction Half Cycle (RHC) of NOx Selective Catalytic Reduction with NH over Cu-CHA catalysts is controversial. In the past, transient CO to CO oxidation protocols have been used to titrate binuclear Cu species, and identified NH-solvated ZCu(OH) ions as their precursors. However, the prior results relied on asymptotic extrapolation due to
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Modulating CO2 electroreduction to syngas by protic-nonprotic ionic liquid composite electrolytes Chem. Eng. Sci. (IF 4.7) Pub Date : 2024-03-06 Xin li, Shaojuan Zeng, Anwei Wang, Guilin Li, Lei Yuan, Kuilin Peng, Chongyang Jiang, Hongyu Zhang, Xiangping Zhang, Suojiang Zhang
CO electroreduction reaction (CORR) to syngas with a tunable CO/H ratio and high current density is a promising but challenging application. Here, we report a novel electrolyte, including protic ionic liquid (IL) [Bim][NTf], nonprotic IL, acetonitrile (MeCN) for CORR to syngas. When the concentration of [Bim][NTf] increased from 0.005 to 0.12 mol·L, the CO/H ratio dropped from 30 to 0.1 and the current
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Controllable preparation of VO2@m-SiO2 and its light transmittance and thermal insulation properties of PVB composite films Chem. Eng. Sci. (IF 4.7) Pub Date : 2024-03-06 Liping Zhang, Xiaorong Meng, Danghao Liu, Changqing Yuan, Bing Wang, Jun Zhu, Jinjing Du
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Experimental and theoretical investigation of amine-modified biomass-derived activated carbon for CO2 capture: The effects of carbon chain length and types of amine Chem. Eng. Sci. (IF 4.7) Pub Date : 2024-03-05 Yiting Yang, Yulu Liu, Shengyu Liu, Yong Zhao, Qiang Zhang, Lin Su, Ziyi Chen, Mengting Zhao
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Tricomponent direct co-assembly to nitrogen-doped, ordered mesoporous carbon@silica frameworks with enhanced nitrogen stability and multi-functionalities Chem. Eng. Sci. (IF 4.7) Pub Date : 2024-03-05 Xun Kan, Zihao Liu, Yafei Sun, Shouchao Zhong, Yong Zheng, Shijing Liang, Fujian Liu, Ying Wan, Lilong Jiang
High nitrogen-doped, ordered mesoporous carbon@silica frameworks (N-OMC@SiO) with reinforced nitrogen stability have been successfully designed from solvent-free tricomponent direct co-assembly, the N-OMC@SiO show enhanced functionalities for acid gases selective capture and gaseous sulfides catalytic high-value utilization.
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Ag nanoparticles functionalized melamine sponges for enhanced catalytic reduction of methylene blue Chem. Eng. Sci. (IF 4.7) Pub Date : 2024-03-05 Jinglin Tan
Silver (Ag) nanoparticle, owing to its remarkably reactivity and high selectivity, has been achieved considerable attention in the field of dye pollution. In this work, Ag nanoparticles were deposited onto the surface of melamine sponges (Ag-PDA-MS) via mussel-inspired polydopamine layers. Firstly, melamine sponge was coated with polydopamine layers, and then Ag nanoparticles were adhered on sponge
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Catalytic cycloaddition of CO2 to epoxidized methyl oleate over a HBimCl-NbCl5/HCMC: Physicochemical, mass transfer and kinetic investigation Chem. Eng. Sci. (IF 4.7) Pub Date : 2024-03-04 Xiao-Shuang Cai, Hui-Xian Guo, Xiao-Juan Zhao, Jia-Ju Zhao, Hua-Min Liu, Sébastien Leveneur, Xue-De Wang
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Integrated supervisory fuzzy control framework for biological wastewater treatment plants operation and their effect on GHG emissions Chem. Eng. Sci. (IF 4.7) Pub Date : 2024-03-04 E.S.S. Tejaswini, P. Maheswari, Seshagiri Rao Ambati
In this research, the effect on the greenhouse gases (GHG) emissions from biological wastewater treatment plants (WWTP) operation by implementing an integrated supervisory control framework on the bench-mark simulation model 2 gas (BSM2G) platform is studied. Ammonia based aeration control is considered for improving the efficiency of the nitrification process and also nitrate control is considered
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Unravelling the reaction mechanism for H2 production via formic acid decomposition over Pd: Coverage-Dependent microkinetic modeling Chem. Eng. Sci. (IF 4.7) Pub Date : 2024-03-04 Zihao Yao, Xu Liu, Rhys J. Bunting, Jianguo Wang
As a key liquid organic hydrogen carrier, investigating the decomposition of formic acid (HCOOH) on the Pd (111) transition metal surface is imperative for harnessing hydrogen energy. Despite a multitude of studies, the major mechanisms and key intermediates involved in the dehydrogenation process of formic acid remain a great topic of debate due to ambiguous adsorbate interactions. In this research
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Flow behavior and size characteristics of microbubble swarm in a HiGee-aided fixed bed reactor with different packed structures Chem. Eng. Sci. (IF 4.7) Pub Date : 2024-03-03 Qian Luo, Li-Hua Wang, Wen-Tao Jiang, Chun-Hui Li, Yong Luo, Hai-Kui Zou, Jian-Feng Chen
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Deionization performance, desalination enhancement mechanism, desorption behavior and energy consumption analysis of biochar-based membrane capacitive deionization Chem. Eng. Sci. (IF 4.7) Pub Date : 2024-03-01 Meile Chu, Weijun Tian, Zhiyang Lu, Bingkun Liu, Ruijuan Zhang, Zhuo Chen
Four different configurations of capacitive deionization (CDI) were assembled to comparatively investigate the contribution of different ion exchange membranes (IEMs), including anion exchange membrane (AEM) and cation exchange membrane (CEM), to the enhancement of desalination performance. The results showed that the low charge efficiency of membrane-free biochar-based CDI system was mainly attributed
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Theoretical analysis of gas–liquid mass transfer in Taylor flow capillary reactors Chem. Eng. Sci. (IF 4.7) Pub Date : 2024-02-29 Sergio Bordel, Norbertus J. R. Kraakman, Raúl Muñoz
Mass transfer in Taylor flow columns was herein investigated from a theoretical point of view. For the first time, an exact solution of the Navier-Stokes equations in the liquid slugs that separate Taylor bubbles has been obtained, as along with a solution for the diffusion equation in the proximity of the hemispherical caps of Taylor bubbles. In addition, an exact solution of the diffusion equation
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An improved ghost cell Immersed Boundary Method for conjugate mass and heat transport in fluid-particle systems Chem. Eng. Sci. (IF 4.7) Pub Date : 2024-02-29 C.M.Y. Claassen, M.W. Baltussen, E.A.J.F. Peters, J.A.M. Kuipers
Computational Fluid Dynamics (CFD) is a powerful tool for in-depth studies of multiphase systems, such as packed bed reactors. However, the packed particles create computational challenges near the contact points due to limited resolution or low-quality cells. This study employs a structured Cartesian mesh with a ghost cell Immersed Boundary Method (IBM) to avoid the typical meshing problems for body-conforming
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Liquid bridge solidification between two rods with curved caps Chem. Eng. Sci. (IF 4.7) Pub Date : 2024-02-29 Nang X. Ho, Truong V. Vu
Liquid bridge solidification is a key process in many engineering problems. To advance its applications, we present a numerical investigation of the solidification of a bridge vertically connecting two rods with curved ends. The rod ends are spherical caps to which the bridge interface is pinned. The bridge begins to solidify from its stable vase-like shape. Owing to gravity, when the solid is less
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Experimental assessment of the pH effect and ions on the photocatalytic activity of iron-doped titanium dioxide supported on polystyrene pellets: Batch and continuous tests Chem. Eng. Sci. (IF 4.7) Pub Date : 2024-02-28 Domenico Rosa, Giada Manetta, Luca Di Palma
Experimental tests in batch and continuous modes studied the impact of pH and the presence of inorganic ions on the photocatalytic properties of a visible light-activated titanium oxide catalyst doped with iron. Significantly enhanced photocatalysis was observed in the presence of nitrate and iron ions, while chloride hindered adsorption using Rhodamine B.
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Coupling of multicomponent transport models in particle-resolved fluid-solid simulations Chem. Eng. Sci. (IF 4.7) Pub Date : 2024-02-28 S. Tadayon Mousavi, C.M.Y. Claassen, M.W. Baltussen, E.A.J.F. Peters, J.A.M. Kuipers
An accurate and self-consistent methodology for mass transport of multi-component mixtures in multi phase media is a necessity for a proper description of complex physical and chemical processes in reactors such as catalytic packed beds. In this regard, a novel methodology has been developed to describe and couple underlying transport phenomena in fluid and porous media as well as at the solid-fluid
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CFD-DEM modeling and validation of solids drying in a gas-fluidized bed Chem. Eng. Sci. (IF 4.7) Pub Date : 2024-02-28 M.J.A. de Munck, E.A.J.F. Peters, J.A.M. Kuipers
Fluidized beds are commonly used for industrial drying applications due to their excellent heat and mass transfer characteristics. These features are desired since solids drying is very energy-intensive. Computer models such as Computational Fluid Dynamics - Discrete Element Method (CFD-DEM) can be employed to facilitate the fundamental understanding of solids drying and as a tool to improve process
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Modeling of tubular membrane contactors for ozonation of water reveals reduced bromate formation with static mixers Chem. Eng. Sci. (IF 4.7) Pub Date : 2024-02-28 Stefan Herrmann, Maria C. Padligur, Conrad J. Bieneck, Matthias Wessling
Bromate formation and insufficient micropollutant degradation are two major problems in wastewater ozonation. The conventional process using bubble columns has the drawback of an inhomogeneous ozone distribution, causing increased bromate formation. Membrane contactors are a promising alternative as they can dissolve ozone bubble-free. This work presents a simulation of a tubular membrane contactor
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Effect of vibrational modes on fluidization characteristics and solid distribution of cohesive micro- and nano-silica powders Chem. Eng. Sci. (IF 4.7) Pub Date : 2024-02-28 Rens Kamphorst, Kaiqiao Wu, Matthijs van Baarlen, Gabrie M.H. Meesters, J. Ruud van Ommen
In this study, the impact of different vibrational modes on the fluidization characteristics of cohesive micro- and nano-silica powder was examined. Fractional pressure drop, bed expansion measurements, and X-ray imaging were utilized to characterize the fluidization quality. The densities of the emulsion phase at the top and bottom of the column were quantified and compared, providing insights into
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Rationalizing the use of mutual diffusion prediction models in non-ideal binary mixtures Chem. Eng. Sci. (IF 4.7) Pub Date : 2024-02-28 Olajumoke Alabi-Babalola, Jie Zhong, Geoff D. Moggridge, Carmine D'Agostino
In this paper, we compared seven diffusion models in terms of prediction performances. Using vapour-liquid equilibrium (VLE) data, we calculate the thermodynamic correction factor as a function of composition for eleven binary liquid mixtures using non-random two-liquid and Redlich-Kister models. These data, together with intra-diffusion coefficients, and viscosity values, are used to predict mutual
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On the formation of dendritic iron from alkaline electrochemical reduction of iron oxide prepared for metal fuel applications Chem. Eng. Sci. (IF 4.7) Pub Date : 2024-02-27 Akmal Irfan Majid, Giulia Finotello, John van der Schaaf, Niels G. Deen, Yali Tang
Low-temperature electrochemical reduction (electroreduction) of iron oxides is a promising alternative to the conventional methods for iron production due to its CO-free operation and relatively low energy consumption. In this work, we demonstrate a novel approach for electrochemical iron production by promoting the formation of dendritic structures during iron electrodeposition, which facilitates
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NiCu-based catalysts with high selectivity for electro–oxidation of glucose to formic acid Chem. Eng. Sci. (IF 4.7) Pub Date : 2024-02-27 Xia Chen, Zhengyuan Zhang, YingChen Yang, Bochen Hu, Qian Wu, Weiqiang Fan, Jinhui Hao, Weidong Shi
Electrochemical oxidation of glucose to high valuable chemicals is an attractive strategy to realize sustainable development. Herein, we report that nanostructured NiCu oxide (NiCuO) reveal excellent activity and selectivity toward electrooxidation of glucose, which is synthesized from bimetallic alloy-NiCu on three-dimensional Ni foam. Only 1.15 V and 1.39 V are needed to reach 10 and 100 mA cm for
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Droplet evaporation on two-tier hierarchical micro-pillar array surface Chem. Eng. Sci. (IF 4.7) Pub Date : 2024-02-27 Tianjiao Wang, Nan Wang, Yi Zheng, Shengqiang Shen, Gangtao Liang
As surface modification becomes a promising approach to thermal management, quantifying effects of surface structure geometrical dimension is of great significance to optimize heat transfer performance. In this paper, we emphatically report droplet evaporation on three types of two-tier hierarchical micro-pillar array (THM) surfaces. Utilizing the lattice Boltzmann model, evaporation characteristics
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Numerical study of capillary-dominated drainage dynamics: Influence of fluid properties and wettability Chem. Eng. Sci. (IF 4.7) Pub Date : 2024-02-27 Yang Liu, Rongjiu Zhu, Xuan Qin, Yan Zhou, Qiji Sun, Jun Zhao
Drainage in porous media, crucial in various engineering, industrial, and pharmaceutical contexts, is influenced by the instability of fluid interfaces, leading to diverse displacement efficiencies. This study employs a color gradient model based on the lattice Boltzmann method for pore-scale simulations, examining effects of fluid viscosity, interfacial tension, and wettability on fluid distribution
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Modelling of iron oxide reduction with hydrogen in a small fixed bed Chem. Eng. Sci. (IF 4.7) Pub Date : 2024-02-26 Emiliano Salucci, Antonio D'Angelo, Vincenzo Russo, Henrik Grénman, Henrik Saxén
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Hierarchical biocide-free silicone/graphene-silicon carbide nanocomposite coatings for marine antifouling and superhydrophobicity of ship hulls Chem. Eng. Sci. (IF 4.7) Pub Date : 2024-02-25 Mohamed S. Selim, Ahmed M. Azzam, Shimaa A. Higazy, Mohamed A. Shenashen, Ahmed Elmarakbi, Mitsuhiro Ebara, Sherif A. El-Safty
A new series of fluorine-free, nonbiocidal, and hierarchical superhydrophobic silicone coatings filled with reduced graphene oxide (RGO)/β-SiC bamboo-like nanocomposites was successfully fabricated as durable ternary marine fouling release (FR) surfaces. RGO/β-SiC hybrid was used as coating nanofiller that would release fouling and confer surface robustness. It was facilely created using a straightforward
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Engineering Pd-oxygen vacancy interface for enhanced hydrodeoxygenation of hexahydrophthalic anhydride to hexahydrophthalide Chem. Eng. Sci. (IF 4.7) Pub Date : 2024-02-24 Zi Lin, Hongyu Niu, Yuhang Gong, Chenxi Zhao, Changhai Liang, Chuang Li
The development of chemical recyclable polyester based on hexahydrophthalide offers a solution to the plastic pollution issue. However, it remains a challenge to construct a promising catalyst route for monomers synthesis and clarifying the binary interactions between the support and active sites. In this work, we reported Pd/ZrO catalysts with different crystal structures by metal-support interaction
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Effect of Tautomerization on Water Desalination by Covalent Organic Frameworks Chem. Eng. Sci. (IF 4.7) Pub Date : 2024-02-24 Fang Xu, Wangqin Ruan, Cheng Lian, Zhi Xu
Covalent organic frameworks (COFs) have gained increasing interest as promising building blocks for desalination membranes due to their inherent porosity. Efforts have been made to prepare COF membranes and explore their transport mechanisms, however the effect of tautomerization has not been reported. Using non-equilibrium molecular dynamics, we discover here that a mere 0.5-Å atomic displacement
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Efficient super-resolution image reconstruction of electrical capacitance tomography for gas–solid fluidized bed measurement Chem. Eng. Sci. (IF 4.7) Pub Date : 2024-02-23 Jian Li, Ying Wang, Zheng Tang, Biao Zhang, Chuanlong Xu
Electrical capacitance tomography (ECT) has been widely used to investigate the flow dynamics of the gas–solid fluidized bed. Deep learning-based tomographic imaging of ECT is of great potential to reconstruct the particle concentration distribution with compatible image quality and reconstruction speed. However, it suffers from low model construction efficiency as numerous data samples need to be
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The effect of periodic spatial arrangement of rotational–perforated static mixer on chaotic advection behavior Chem. Eng. Sci. (IF 4.7) Pub Date : 2024-02-23 Xuefang Gao, Meng Tang, Dewu Wang, Yan Liu, Ruojin Wang, Fei Yan, Lichang Meng, Shaofeng Zhang
Chaotic advection is an important reason for laminar fluids to enter the chaotic mixing state. The flow images obtained by Planar Laser Induced Fluorescence (PLIF) were calculated as the coefficient of variation (), mixing index, and the largest Lyapunov exponent () with time series. The effect of the number of spatial periods () formed by the rotational–perforated static mixer (RPSM) on the chaotic