Spray system characterization for evaluating particle size enlargement in fluidized bed agglomeration

Droplet size is a crucial success factor for increased particle size in the agglomeration process. Thus, this work aimed to analyze the physicochemical properties of maltodextrin solutions used as the binder, their influence on the size of the formed droplets, and their relationship to particle grow...

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Bibliographic Details
Published in:Particulate science and technology 2024-05, Vol.42 (4), p.688-701
Main Authors: Nascimento, Raul Favaro, Ávila, Mariana Ferreira, Taranto, Osvaldir Pereira, Kurozawa, Louise Emy
Format: Article
Language:English
Subjects:
Agglomeration
Atomizing
Droplet size
Droplets
Fluidized beds
Maltodextrin
particle growth
Particle size
phase doppler interferometry
Size enlargement
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Summary:Droplet size is a crucial success factor for increased particle size in the agglomeration process. Thus, this work aimed to analyze the physicochemical properties of maltodextrin solutions used as the binder, their influence on the size of the formed droplets, and their relationship to particle growth. The primary CMC particles had an average size of 295.5 ± 10.0 µm, and at the end of the process, the agglomerates reached chord lengths ranging from 336.5 ± 10.6 µm to 378.3 ± 8.6 µm. Three maltodextrin solutions (5.0%, 20.0%, and 35.0% w/w) were characterized for that in terms of physicochemical properties and droplet size, and following that, the binder concentrations, binder flow rate, and atomizing air pressure were evaluated. The binder liquid concentration is the most outstanding parameter for the agglomeration process regarding particle growth under experimental conditions.
ISSN:0272-6351
1548-0046
DOI:10.1080/02726351.2023.2279200