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- Title
Optimization of the fluidized bed for crystallization process: seed fluidization study.
- Authors
Ke Jiang; Kanggen Zhou
- Abstract
To investigate the influence of seed fluidization on the operation and design of the fluidized bed for crystallization process, the relationships between the seed mass, seed size (L), the minimum fluidization velocity (Umf), and the terminal velocity (Ut) were determined using quartz sand. The results show that the equation Umf = 7.40 × 10-4 × L0.51 can be used to predict the minimum fluidization velocity at the seed size range of 176.5-844.6 µm. The equation Ut = 7.72 × 10-6 × L1.38 can be used to predict the terminal velocity at the seed size range of 109.7-763.1 µm. The pressure difference of the FBR can be used to estimate the seed mass. The design of the sedimentation zone and the adjustment of the reflux flow are possible ways to control the fluid velocity between the minimum fluidization velocity and the terminal velocity, allowing the seed to maintain fluidization without running out of the fluidized bed.
- Subjects
FLUIDIZATION; SAND; SEED size; TERMINAL velocity; FLUID control; CRYSTALLIZATION; QUARTZ
- Publication
Desalination & Water Treatment, 2019, Vol 155, p162
- ISSN
1944-3994
- Publication type
Article
- DOI
10.5004/dwt.2019.24101