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3D Numerical Simulation of Polydisperse Pressurized Gas-Solid Fluidized Bed

[+] Author Affiliations
P. Fede, O. Simonin

Université de Toulouse; CNRS, Toulouse, France

I. Ghouila

INEOS; Innovène, Lavéra, France

Paper No. AJK2011-12016, pp. 3199-3210; 12 pages
doi:10.1115/AJK2011-12016
From:
  • ASME-JSME-KSME 2011 Joint Fluids Engineering Conference
  • ASME-JSME-KSME 2011 Joint Fluids Engineering Conference: Volume 1, Symposia – Parts A, B, C, and D
  • Hamamatsu, Japan, July 24–29, 2011
  • Conference Sponsors: Fluids Engineering Division
  • ISBN: 978-0-7918-4440-3
  • Copyright © 2011 by ASME

abstract

Three dimensional unsteady numerical simulations of dense pressurized polydisperse fluidized bed have been carried out. The geometry is a medium-scale industrial pilot for ethylene polymerization. The numerical simulation have been performed with a polydisperse collision model. The consistency of the polydisperse model predictions with the monodisperse ones is shown. The results show that the pressure distribution and the mean vertical gas velocity are not modified by polydispersion of the solid phase. In contrast, the solid particle species are not identically distributed in the fluidized bed indicating the presence of particle segregation.

Copyright © 2011 by ASME

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