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

TY - JOUR

T1 - Flow dynamic in a packed bed filled with Ni-Al 2 O 3 porous catalyst

T2 - Experimental and numerical approach

AU - Pashchenko, Dmitry

N1 - Publisher Copyright: © 2019 American Institute of Chemical Engineers

PY - 2019/5

Y1 - 2019/5

N2 - 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.

AB - 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.

KW - CFD modeling

KW - catalyst

KW - packed bed

KW - particle shape

KW - pressure drop

UR - http://www.scopus.com/inward/record.url?scp=85061497191&partnerID=8YFLogxK

U2 - 10.1002/aic.16558

DO - 10.1002/aic.16558

M3 - 文章

AN - SCOPUS:85061497191

SN - 0001-1541

VL - 65

JO - AICHE Journal

JF - AICHE Journal

IS - 5

M1 - e16558

ER -