Publication Date:
2017-07-21
Description:
Fluidized beds have been commercially utilized in gas-solid contacting processes such as FCC process. Attempts have been made for bubbling fluidized beds to enhance gas exchange between the bubble phase and the emulsion phase as well as to increase bubble hold up. In this study, low-density superfine particles 5070S was selected whose average diameter is about 10 μm. Unlike agglomerate particulate fluidization of superfine particles on which other researchers have reported, the smaller bubbles whose diameter is less than 10 mm uniformly dispersed in the whole bed. Additionally, the gas exchange rate with 5070S became larger than FCC particle. We concluded that such a unique gas-solid behavior is probably due to the proper density difference between particle aggregate and fluidizing gas.
Print ISSN:
0930-7516
Electronic ISSN:
1521-4125
Topics:
Chemistry and Pharmacology
,
Process Engineering, Biotechnology, Nutrition Technology
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