Aggregation and fragmentation of agglomerates in a fluidized bed of mixed nanoparticles by adding FCC coarse particles

In this study, the influence of fluid cracking catalyst (FCC) on the fluidization behavior of ZnO-CuO binary nanoparticles was systematically investigated by varying FCC size. High-speed camera was employed to analyze the collision and fragmentation process of agglomerates with adding FCC coarse par...

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Bibliographic Details
Published inChinese journal of chemical engineering Vol. 26; no. 12; pp. 2531 - 2536
Main Authors Mo, Hongbing, Xu, Bao, Luo, Chuanbao, Zhou, Tao, Kong, Jiangrong
Format Journal Article
LanguageEnglish
Published Elsevier B.V 01.12.2018
Hunan Provincial Key Laboratory of Efficient and Clean Utilization of Manganese Resources, College of Chemistry and Chemical Engineering, Central South University, Changsha 410083, China
Subjects
Agglomerate
Breakup
Fluidization
Nanoparticles
Nanoparticles
Agglomerate
Breakup
Fluidization
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Summary:In this study, the influence of fluid cracking catalyst (FCC) on the fluidization behavior of ZnO-CuO binary nanoparticles was systematically investigated by varying FCC size. High-speed camera was employed to analyze the collision and fragmentation process of agglomerates with adding FCC coarse particles. It can be found from photographs by the camera that fluidization performance improved by the agglomerate variation that is bound to be shaped a compact and spherical structure. Furthermore, the result of agglomeration composition analysis showed that uniform mixing of nanoparticles remarkably affected the fluidization behavior of ZnO-CuO binary system. Finally, the improvement of fluidization performance can be justified by the analysis of inter-cohesive force between the two agglomerates with sharp reduction of the newly-formed agglomerates.
ISSN:1004-9541
2210-321X
DOI:10.1016/j.cjche.2018.02.011