Modelling of gibbsite calcination in a fluidized bed reactor

Amirpiran Amiri, Gordon D. Ingram, Andrey V. Bekker, Iztok Livk, Nicoleta E. Maynard

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

A steady state, non‐isothermal fluidized bed reactor model for co‐current flow of gas and solids has
been developed as a series of Continuous Stirred Tank Reactor (CSTR) compartments. For each CSTR
compartment, mass and energy balances were coupled with a particle‐scale gibbsite calcination
kinetic model previously developed by the authors. The overall solids residence time distribution is
captured by the compartment calcination model. The multi‐scale model was solved numerically
through an iterative procedure that alternated between solving particle‐scale and reactor‐scale parts
of the model. Gas, water vapour and solids concentrations, as well as particle and gas temperatures
and gibbsite conversion profiles, are predicted inside the calcination reactor. The developed model
can be used to facilitate improvements in the operation and design of industrial‐scale reactors.
Original languageEnglish
Title of host publicationCHEMECA 2014
Publication statusPublished - 2014
EventCHEMECA 2014 - Perth, Australia
Duration: 28 Sep 20141 Oct 2014

Conference

ConferenceCHEMECA 2014
CountryAustralia
CityPerth
Period28/09/141/10/14

Bibliographical note

© 2014 The Authors

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  • Cite this

    Amiri, A., Ingram, G. D., Bekker, A. V., Livk, I., & Maynard, N. E. (2014). Modelling of gibbsite calcination in a fluidized bed reactor. In CHEMECA 2014