Flow Maldistribution in Either a Bench-Scale or Commercial Scale Packed Bed is Often Responsible for the Failure of the Scale Down Unit to Mimic the Performance of the Large Reactor. the Modeling of Multiphase Flow in a Bench-Scale Unit is Needed for Proper Interpretation of Reaction Rate Data Obtained in Such Units. Understanding the Mechanism of Flow Maldistribution is the First Step to Avoiding It. in Order to Achieve This Objective, Computational Fluid Dynamic (CFD) Simulations of Multiphase Flow under Steady State and Unsteady State Conditions in Bench-Scale Cylindrical and Rectangular Packed Beds Are Presented for the First Time. the Porosity Distribution in Packed Beds is Implemented into CFD Simulation by Pseudo-Randomly Assigned Cell Porosity Values within Certain Constraints. the Flow Simulation Results Provide Valuable Information on Velocity, Pressure, and Phase Holdup Distribution. © 2001 Elsevier Science B.V.
Y. Jiang et al., "CFD Modeling of Multiphase Flow Distribution in Catalytic Packed Bed Reactors: Scale Down Issues," Catalysis Today, vol. 66, no. 2 thru 4, pp. 209 - 218, Elsevier, Mar 2001.
The definitive version is available at https://doi.org/10.1016/S0920-5861(00)00642-8
Chemical and Biochemical Engineering
Keywords and Phrases
Bench-scale; Catalytic packed bed; CFD simulation; Multiphase flow maldistribution; Porosity distribution; Scaling down
International Standard Serial Number (ISSN)
Article - Conference proceedings
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30 Mar 2001