(21a) Fluidization: Bubble, Bubble, Toil and Trouble
- Conference: AIChE Spring Meeting and Global Congress on Process Safety
- Year: 2017
- Proceeding: 2017 Spring Meeting and 13th Global Congress on Process Safety
- Group: Process Development Division
- Time: Monday, March 27, 2017 - 1:30pm-1:52pm
A quick dip into the open literature concerning fluidization quickly leaves one with a headache. The open literature is rife with empirical correlations relating pressure drop to fluid flow, material bed height, material particle diameter, and density differences. The same literature is also replete with ârules of thumbâ for the onset of fluidization and for the various stages of fluidization. Undoubtedly, companies employing fluidized bed technology have similar documentation describing their own correlations and their own ârules of thumbâ.
In this presentation, we derive the pertinent relations for describing fluidization using Dimensional Analysis. We also discuss scaling fluidized processes from laboratory-sized equipment to commercial-sized equipment.