TY - JOUR
T1 - A Gaussian-convection model for solid dispersion in slurry bubble columns
AU - Ityokumbul, M. T.
N1 - Funding Information:
The award of a Commonwealth Scholarship by the Canadian Government (198 1 - 1986) and a Visiting Fellowship by the Department of Energy Mines and Resources, Canada ( 199 1 - 1992) to the author is gratefully acknowledged.
PY - 1992/10
Y1 - 1992/10
N2 - The use of a diffusive-type model to represent the behaviour of solid particles in a slurry bubble column has been questioned. In agreement with the observation of Levenspiel and Fitzgerald, a sedimentation-convection model for solid behaviour in slurry bubble columns is presented. With this model, the analytical solution for axial solid concentration for monodispersed particles in a slurry bubble column at steady state for the continuous flow of slurry and gas is derived to be: Cs = U1Csf/(U1 ± Vp). The use of the model together with the correlations of Ramachandran and Chaudhari for particle settling velocity in slurry bubble columns has been found to well predict the solid hold-up in the monodispersed solid systems of Bhaga and Weber and also in the polydispersed solid systems operated in both cocurrent and countercurrent mode.
AB - The use of a diffusive-type model to represent the behaviour of solid particles in a slurry bubble column has been questioned. In agreement with the observation of Levenspiel and Fitzgerald, a sedimentation-convection model for solid behaviour in slurry bubble columns is presented. With this model, the analytical solution for axial solid concentration for monodispersed particles in a slurry bubble column at steady state for the continuous flow of slurry and gas is derived to be: Cs = U1Csf/(U1 ± Vp). The use of the model together with the correlations of Ramachandran and Chaudhari for particle settling velocity in slurry bubble columns has been found to well predict the solid hold-up in the monodispersed solid systems of Bhaga and Weber and also in the polydispersed solid systems operated in both cocurrent and countercurrent mode.
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U2 - 10.1016/0255-2701(92)87006-3
DO - 10.1016/0255-2701(92)87006-3
M3 - Article
AN - SCOPUS:0026933490
SN - 0255-2701
VL - 31
SP - 321
EP - 325
JO - Chemical Engineering and Processing - Process Intensification
JF - Chemical Engineering and Processing - Process Intensification
IS - 5
ER -