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

doi:10.1016/j.cjche.2018.02.011

Chin.J.Chem.Eng. ›› 2018, Vol. 26 ›› Issue (12): 2531-2536.DOI: 10.1016/j.cjche.2018.02.011

• Catalysis, kinetics and reaction engineering • Previous Articles Next Articles

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

Hongbing Mo, Bao Xu, Chuanbao Luo, Tao Zhou, Jiangrong Kong

Hunan Provincial Key Laboratory of Efficient and Clean Utilization of Manganese Resources, College of Chemistry and Chemical Engineering, Central South University, Changsha 410083, China

Received:2017-10-02 Revised:2018-01-11 Online:2019-01-09 Published:2018-12-28
Contact: Tao Zhou
Supported by:
Supported by the National Natural Science Foundation of China (21376269) and the Hunan Provincial Science and Technology Plan Project, China (2016TP1007).

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

Hongbing Mo, Bao Xu, Chuanbao Luo, Tao Zhou, Jiangrong Kong

Hunan Provincial Key Laboratory of Efficient and Clean Utilization of Manganese Resources, College of Chemistry and Chemical Engineering, Central South University, Changsha 410083, China

通讯作者: Tao Zhou
基金资助:
Supported by the National Natural Science Foundation of China (21376269) and the Hunan Provincial Science and Technology Plan Project, China (2016TP1007).

Abstract

Abstract: 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.

Key words: Nanoparticles, Fluidization, Agglomerate, Breakup

摘要： 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.

关键词: Nanoparticles, Fluidization, Agglomerate, Breakup

Hongbing Mo, Bao Xu, Chuanbao Luo, Tao Zhou, Jiangrong Kong. Aggregation and fragmentation of agglomerates in a fluidized bed of mixed nanoparticles by adding FCC coarse particles[J]. Chin.J.Chem.Eng., 2018, 26(12): 2531-2536.

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

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

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