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

作者：Mo, Hongbing; Xu, Bao; Luo, Chuanbao; Zhou, Tao^*; Kong, Jiangrong

来源：Chinese Journal of Chemical Engineering, 2018, 26(12): 2531-2536.

DOI：10.1016/j.cjche.2018.02.011

• Nanoparticles
• Fluidization
• Agglomerate
• Breakup

In this study, the influence of fluid cracking catalyst (FCC) on the fluidization behavior of ZnO-CuO binary nanopartides 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.

• 出版日期2018-12
• 单位中南大学