Flow dynamic in a packed bed filled with Ni-Al 2 O 3 porous catalyst: Experimental and numerical approach

Dmitry Pashchenko*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

20 Scopus citations

Abstract

Numerical simulations and experiments have been carried out to explore the effect of particle shapes on the pressure drop and the loss factor in a packed fixed bed filled with a porous catalyst. The packed bed is presented by the Ni-Al 2 O 3 catalyst of the different shapes. The commercial program ANSYS Fluent is used for the analysis; more than 20 mln cells are used for computational fluid dynamics (CFD) modeling. The catalyst particles were set as a porous medium with the viscous resistance coefficients and the inertial resistance coefficients. The comparison of the pressure drops between the experimental and simulation results show a good correlation with the divergence of results <8%. To determine the effect of the porosity properties of the medium on the numerical results, two cases of CFD modeling were realized (with taking into account the porous medium properties and without it). The discrepancy between results increases with an increasing gas flow rate.

Original languageEnglish
Article numbere16558
JournalAICHE Journal
Volume65
Issue number5
DOIs
StatePublished - May 2019
Externally publishedYes

Keywords

  • CFD modeling
  • catalyst
  • packed bed
  • particle shape
  • pressure drop

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