Resonance-induced particle mixing and segregation phenomena in a forced oscillation fluidized bed

•The impact of the resonance effect on bed voidage is examined.•The phenomenon of particle separation induced by the resonance effect is investigated.•A phase diagram of particle separation in pulsed fluidized bed is proposed. The mixing and segregation of binary particles in a fluidized bed are typ...

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Veröffentlicht in:Chemical engineering science Jg. 299; S. 120448
Hauptverfasser: Li, Yanjiao, Hong, Kun, Zhou, Chenyang, Zhang, Yadong, Dong, Liang
Format: Journal Article
Sprache:Englisch
Veröffentlicht: Elsevier Ltd 05.11.2024
Schlagworte:
Binary mixture
Mixing
Pulsation frequency
Resonance effect
Segregation
Resonance effect
Binary mixture
Mixing
Segregation
Pulsation frequency
ISSN:0009-2509
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Zusammenfassung:•The impact of the resonance effect on bed voidage is examined.•The phenomenon of particle separation induced by the resonance effect is investigated.•A phase diagram of particle separation in pulsed fluidized bed is proposed. The mixing and segregation of binary particles in a fluidized bed are typically characterized by inherent unpredictability. However, this phenomenon can be effectively regulated by applying vibrating airflow and the resonance effect generated therein. This study found that the application of the resonance effect leads to an increase in the voidage of fluidized beds, which is conducive to changing the state of particle dispersion. In addition, the variation in particle characteristics and proportions has a significant impact on the behavior of particles. If there is a substantial difference between particle characteristics and proportions, even with the application of pulsation frequency, it will not change the type of floating particles. Furthermore, phase diagrams and particle segregation models were successfully established for the pulsed fluidized bed, allowing for accurate prediction of binary particle segregation and mixing phenomena. This research provides a comprehensive theoretical foundation for regulating particle mixing and segregation.
ISSN:0009-2509
DOI:10.1016/j.ces.2024.120448