Print Email Facebook Twitter Modeling the size distribution in a fluidized bed of nanopowder Title Modeling the size distribution in a fluidized bed of nanopowder Author Fabre, A. (TU Delft ChemE/Product and Process Engineering) Salameh, S. (TU Delft ChemE/Product and Process Engineering) Kreutzer, M.T. (TU Delft ChemE/Chemical Engineering) van Ommen, J.R. (TU Delft ChemE/Product and Process Engineering) Department ChemE/Chemical Engineering Date 2017 Abstract Fluidization is a technique used to process large quantities of nanopowder with no solvent waste and a large gas–solid contact area. Nonetheless, nanoparticles in the gas phase form clusters, called agglomerates, due to the relatively large adhesion forces. The dynamics within the fluidized bed influence the mechanism of formation, and thus, the morphology of the agglomerates. There are many theoretical models to predict the average size of fluidized agglomerates; however, these estimates of the average lack information on the whole size range. Here, we predict the agglomerate size distribution within the fluidized bed by estimating the mode and width using a force balance model. The model was tested for titania (TiO2), alumina (Al2O3), and silica (SiO2) nanopowders, which were studied experimentally. An in-situ method was used to record the fluidized agglomerates for size analysis and model validation. Subject AgglomerateFluidizationModelNanoparticleSize distribution To reference this document use: http://resolver.tudelft.nl/uuid:a76fa178-64cb-4281-8dbd-4ad981ef30b1 DOI https://doi.org/10.1016/j.powtec.2017.02.056 Embargo date 2019-03-03 ISSN 0032-5910 Source Powder Technology, 312, 347-353 Bibliographical note Accepted Author Manuscript Part of collection Institutional Repository Document type journal article Rights © 2017 A. Fabre, S. Salameh, M.T. Kreutzer, J.R. van Ommen Files PDF Fabre_Modeling_the_size_d ... powder.pdf 1.29 MB Close viewer /islandora/object/uuid:a76fa178-64cb-4281-8dbd-4ad981ef30b1/datastream/OBJ/view