Influence of multi-factor interactions on particle growth during top-spray fluidized bed agglomeration
Abstract
Considering the strong dependence of agglomerate characteristics on various operating parameters, this study employs the control variable methodology (CVM) and response surface methodology (RSM) to investigate the influence of multi-factor interactions on particle growth during top-spray fluidized bed agglomeration.
First, CVM is conducted to assess the effects of individual operating parameters on the agglomerate properties, such as mean particle size, relative width, and sphericity. Then, the interactive relationship between these input variables and the quality attributes of the process is investigated using RSM.
The results show that the mean particle size increases with the increase of binder viscosity and spray rate, while it decreases with the increase of fluidization gas velocity and inlet gas temperature. The relative width of the particle size distribution increases with the spray rate, binder viscosity, and fluidization gas velocity, and hardly changes with the inlet gas temperature.
The mean particle size is more sensitive to the binder spray rate at a lower level of fluidization gas velocity or a higher level of inlet gas temperature. The fluidization gas velocity corresponding to the maximum D50 changes when the binder viscosity and binder spray rate are at different levels.
Highlights
- Agglomeration process in a top-spray fluidized bed was studied.
- Response Surface Methodology was employed to reveal the multi-factor interactions.
- Effects of various operating parameters on agglomerate properties were examined.
- Mean particle size, particle size distribution, and sphericity were measured.
Read more here
Chunyin Wang, Jiliang Ma, Jialiang Cai, Han Pu, Xiaoping Chen, Influence of multi-factor interactions on particle growth during top-spray fluidized bed agglomeration, Particuology, 2024, ISSN 1674-2001, https://doi.org/10.1016/j.partic.2024.08.003.
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