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  • Robert Macias,
  • Juan Maya,
  • Farid Chejne,
  • Zainab Afailal,
  • Jesús Arauzo Pérez
Robert Macias
Universidad Nacional de Colombia Sede Medellin

Corresponding Author:[email protected]

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Juan Maya
Universidad Nacional de Colombia Sede Medellin
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Farid Chejne
Universidad Nacional de Colombia Sede Medellin
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Zainab Afailal
Universidad de Zaragoza
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Jesús Arauzo Pérez
Universidad de Zaragoza
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This work proposes a novel population-balance based model for a bubbling fluidized bed reactor. This model considers two continuum phases: bubble and emulsion. The evolution of the bubble size distribution was modeled using a population balance, considering both axial and radial motion. This sub-model involves a new mathematical form for the aggregation frequency, which predicts the migration of bubbles from the reactor wall towards the reactor center. Additionally, the reacting particles were considered as a lagrangian phase, which exchanges mass with the emulsion phases. For each particle, the variation of the pore size distribution was also considered. The model presented here accurately predicted the experimental data for biochar gasification in a lab-scale bubbling fluidized bed reactor. Finally, the aggregation frequency is shown to serve as a scaling parameter.
18 May 2020Submitted to AIChE Journal
27 May 2020Submission Checks Completed
27 May 2020Assigned to Editor
23 Jun 2020Reviewer(s) Assigned
13 Oct 2020Editorial Decision: Revise Major
10 Nov 20201st Revision Received
13 Nov 2020Submission Checks Completed
13 Nov 2020Assigned to Editor
16 Nov 2020Reviewer(s) Assigned
30 Dec 2020Editorial Decision: Revise Minor
31 Dec 20202nd Revision Received
03 Jan 2021Submission Checks Completed
03 Jan 2021Assigned to Editor
10 Jan 2021Editorial Decision: Accept
22 Jan 2021Published in AIChE Journal. 10.1002/aic.17199