FLUIDIZATION

作品数:226被引量:445H指数:10
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相关作者:归柯庭施明恒王迎慧周强更多>>
相关机构:国家钨材料工程技术研究中心东南大学江苏大学清华大学更多>>
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Segregation mechanism of 0–1 mm fine coal in vibration separation fluidized bed and its influence on the fluidization stability
《Particuology》2025年第2期167-182,共16页Ziyi Guo Rongmiao Zhang Yifan Wang Yu Wang Zhibin Guo Ruikang Fan Yadong Zhang Enhui Zhou Chenlong Duan 
This work was supported by the National Natural Science Foundation of China(grant Nos.52474306,52220105008,52125403,52304306);Jiangsu Provincial Natural Science Foundation(grant No.BK20231073);Graduate Innovation Program Project of China University of Mining and Technology(grant No.2024WLJCRCZL100).
This study investigates the impact of mixing 0–1 mm fine coal with 0.15–0.3 mm magnetite powder to form a binary dense medium.The aim is to examine how the 0–1 mm fine coal influences the stability of vibration sep...
关键词:Vibration separation fluidization 0-1mm fine coal Segregation process Density fluctuation 
A modified drag model for the fluidization of nano-modulated Group C particles
《Particuology》2025年第1期14-25,共12页Kuankui Guo Zhengyuan Deng Jiaying Wang Jingtao Wang Jesse Zhu 
supported by National Key R&D Program of China(grant No.2023YFC3207104);National Natural Science Foundation of China(grant No.22078229)。
Geldart Group C powders are inherently cohesive due to the strong interparticle forces,leading to severe agglomeration and poor fluidization capability.In this study,fluidization of nano-modulated Group C particles wa...
关键词:FLUIDIZATION Nano-modulated Group C particles Drag model AGGLOMERATION 
Effect of particle Froude number on sub-grid effective drag,filtered and residual stresses in fluidized gas-particle flows
《Particuology》2024年第12期36-48,共13页Christian C.Milioli Fernando E.Milioli 
supported by The State of Sao Paulo Research Foundation (FAPESP);The National Council for Scientific and Technological Development (CNPq),both from Brazil.
Sub-grid effective drag,filtered and residual stresses in the meso-scale of gas-particle fluidized flows are intrinsically affected by underlying micro-scale conditions as well as non-local effects related to macro-sc...
关键词:FLUIDIZATION Gas-particle flows Two-fluid model Sub-grid analysis Multiscale analysis 
Behavior and mechanism of pre-oxidation improvement on fluidization in the fluidized reduction of titanomagnetite
《International Journal of Minerals,Metallurgy and Materials》2024年第11期2458-2465,共8页Haoyan Sun Ajala Adewole Adetoro Zhiqiang Wang Qingshan Zhu 
grateful for financial support from the National Natural Science Foundation of China(Nos.22378405 and 51974287);the Strategic Priority Research Program of the Chinese Academy of Sciences(No.XDA29040100);the National Key Research and Development Program of China(No.2023YFC2908002).
The direct reduction process is an important development direction of low-carbon ironmaking and efficient comprehensive utilization of poly-metallic iron ore,such as titanomagnetite.However,the defluidization of reduc...
关键词:FLUIDIZATION direct reduction PRE-OXIDATION TITANOMAGNETITE iron whisker 
Wall-scaling prevention in cryogenic external cooler of ammonium chloride solution by liquid-solid fluidization
《Particuology》2024年第11期120-132,共13页Yusu Zhu Yongli Ma Mingyan Liu 
supported by the Natural Science Foundation of Tianjin City(grant No.22JCQNJC00550);Open Research Fund of State Key Laboratory of Multiphase Complex Systems(grant No.MPCS-2021-D-06).
A double-tube cooler with liquid-solid circulating fluidization operation and corresponding parameter measuring system are developed to avoid fouling of inner walls of heat exchange tubes in a cryogenic temperature ex...
关键词:FOULING Liquid-solid circulating fluidized bed External cooler Two-phase flow Ammonium chloride 
Experimental investigation of bed-to-wall heat transfer in fluidized beds of a Geldart B sorbent particle under a full spectrum of fluidization regime
《Particuology》2024年第10期235-246,共12页Chenhuan Xu Yongmin Zhang Liang Wang Yiming Zhang Tianlei Yang Feng Qiu Cenfan Liu Shuai Jiang Ke Dong 
support by the National Natural Science Foundation of China(grant No.21808245).
Fluidization technology has been used in CO_(2) capture processes, the successful design and operation of the heat exchangers involved in this process require much information on the bed-to-wall heat transfer of the s...
关键词:Bed-to-wall heattransfer Solid amine sorbent Geldart B particle Full spectrum of fluidization regime Correlation 
The transition to turbulent fluidization in a gas-solid fluidized bed operating from ambient temperature to 1600℃
《Particuology》2024年第10期111-124,共14页Qingjin Zhang Liangliang Fu Guangwen Xu Dingrong Bai 
supported by the National Natural Science Foundation of China(grant No.U22A20410).
Turbulent fluidized bed proves effective in industrial processes due to superior heat and mass transfer and chemical reaction performance. However, understanding the transition to turbulent fluidization remains limite...
关键词:High-temperature fluidized beds Turbulent fluidization Transition velocity Pressure fluctuations Hydrodynamic forces Interparticle FORCES 
Particle size distribution in a multi-zone circulating fluidized bed polymerization reactor
《Particuology》2024年第10期291-299,共9页Mohammadhossein Hadadiyan Navid Mostoufi Reza Marandi 
This research focuses on modeling a multi-zone circulating reactor(MZCR)in the polypropylene production process.In these reactors,designed for polyolefin production,small catalyst particles(20–300μm)initiate polymer...
关键词:FLUIDIZATION POLYMERIZATION Gas-solid flow Multi-zone circulating reactor(MZCR) CFD-PBM Two-fluidmodel 
Influences of polymorphism of packed particles on bulk characterizations in fluidization realm
《Chinese Journal of Chemical Engineering》2024年第10期238-248,共11页Quanhong Zhu Yalong Cao Qiang Zhang Wankun Liu Hao Guan Donghui Liu Hengjun Gai 
supported by Shandong Provincial Natural Science Foundation(Project ZR2023MB038);Youth Innovation Team Program of Shandong Higher Education Institution(2022KJ156).
The characterization of a particle ensemble(rather than a single particle) is of paramount significance to various particle technologies and has long been a fundamental subject in the fluidization realm. However, many...
关键词:FLUIDIZATION FLUIDIZED-BED Particle POLYMORPHISM Bulk characterization Comparability 
Steady-state multiscale CFD simulation of a circulating fluidized bed riser
《Particuology》2024年第10期54-64,共11页Zhaojie Ke Yujie Tian Fei Li Bona Lu Wei Wang 
supported by the National Natural Science Foundation of China(grant Nos.22208351,22161142006,21821005);the State Key Laboratory of Mesoscience and Engineering,Institute of Process Engineering,Chinese Academy of Sciences(grant Nos.MESO-23-D03,MESO-23-A02);the Strategic Priority Research Program of the Chinese Academy of Sciences(grant No.XDA0390502).
Compared to transient simulation,steady-state simulation of circulating fluidized bed risers is more efficient,but is also harder to perform due to the complex scale-dependency of dense gas-solid flows.In this work,st...
关键词:FLUIDIZATION Drag force Steady state SIMULATION MESOSCALE 
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