Authors: M.O. Guedon a, T. Baron a, C.L. Briens b, T.M. Knowlton c
a ELF-ATOCHEM, Usine de Mont, Argagnon 64300 Orthez France
b Department of Chemical and Biochemical Engineering, The University of Western Ontario, London, Ont. N6A 5B9 Canada
c Institute of Gas Technology, Chicago, IL USA
Source: This paper was published in Powder Technology.
Abstract: Inclined, intermittent jets can be used to feed solids into fluidized beds. Most of the injected particles end up near the tip of the jet and can only be dispersed throughout the bed by gas bubbles. It must therefore be ensured that the tip of the injection jet will land in a bed region where is a high bubble frequency. The injection system was successfully modeled. To obtain a strong injection jet, the injection line length must be smaller than a critical length which can be predicted with this model. The jet penetration was correlated as a function of the injection velocity, the mass of injected solids and the fluidized bed density.