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Hydrodynamic characteristics of three-phase fluidized beds

Conference ·
OSTI ID:7208327
The hydrodynamics of three-phase (gas-liquid-solid) fluidized beds has been studied in two columns of 7.62 and 15.2 cm in dia. The minimum gas and liquid velocities necessary to fluidize a bed were determined as a function of the particle size and density and the liquid viscosity; no effect of the initial bed height or column diameter was found. An electroconductivity technique was used to measure local concentrations of solid, liquid, and gas in the fluidized bed; these profiles were fitted using the error function. Overall solid holdup data were combined with over 1350 points from the literature to yield a dimensional correlation involving the physical parameters of the systems studied.
Research Organization:
Oak Ridge National Lab., Tenn. (USA)
Sponsoring Organization:
USDOE Office of Fossil Energy (FE)
DOE Contract Number:
W-7405-ENG-26
OSTI ID:
7208327
Report Number(s):
CONF-780438--1
Country of Publication:
United States
Language:
English

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