Agglomeration of Li(NixMnyCoz)O2 particles in Couette–Taylor flow reactor
| Autor: | Jung-Hoon Song, Seung-Hun Lee, Dong Hyup Jeon, Jong-Pal Hong |
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| Rok vydání: | 2019 |
| Předmět: |
Range (particle radiation)
Materials science business.industry General Chemical Engineering Mixing (process engineering) Rotational speed 02 engineering and technology Mechanics Computational fluid dynamics 010402 general chemistry 021001 nanoscience & nanotechnology 01 natural sciences 0104 chemical sciences Physics::Fluid Dynamics Breakage Volume fraction Particle Particle size 0210 nano-technology business |
| Zdroj: | Journal of Industrial and Engineering Chemistry. 76:524-531 |
| ISSN: | 1226-086X |
| DOI: | 10.1016/j.jiec.2019.04.020 |
| Popis: | Couette–Taylor flow reactor is a mixing device that offers wide range of mixing regimes within a single reactor and operates in continuous flow mode. This reactor is recently used in manufacturing the cathode material of lithium ion batteries. Here, we simulate the agglomeration process of Li(NixMnyCoz)O2 particles using computational fluid dynamics. Quadrature method of moments is implemented for modeling of aggregation and breakage in Couette-Taylor flow reactor. We conduct an experiment of the preparation of Li(NixMnyCoz)O2 precursors, and the experimental data are compared with simulated results for the validation of numerical model. The predicted evolutions of mean particle size are well agreed with experimental data. For the practical application, we investigate the effects of density ratio of particle to fluid and initial volume fraction of particles on the particle size. The results show that the particle diameter increases with increasing of density ratio, but it decreases with increasing of initial volume fraction of particles. On the other hand, the particle sizes become similar at high rotational speed. |
| Databáze: | OpenAIRE |
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