Author Archives: cpfd-admin

CPFD Modeling and Experimental Validation of Gas–Solid Flow in a Down Flow Reactor

In this paper, a hybrid model of a gas-solid fluidized bed unit is developed using Barracuda Virtual Reactor and then is validated by experimental data.

Particle Attrition: Mechanisms and Methods to Determine Attrition Indices

Particle attrition can be a major issue in using catalyst particles in fluidized beds and circulating fluidized beds. Particles tend to break down via two mechanisms – abrasion and fragmentation.

Hydrodynamics of High Velocity Circulating Fluidized Bed Risers

In this research the solids flux measurements showed the risers having different shapes of radial profiles. The net solids flow direction at all radial locations was found to be upward for the conditions used in this study.

Use of pressure to mitigate gas bypassing in fluidized beds of FCC catalyst particles

This publication demonstrates that pressure fluctuations and local bubble void fraction can diagnose gas bypassing

Comparison of Numerical Approaches to Model FCC Particles in Gas–Solid Bubbling Fluidized Bed

The hydrodynamics of FCC particles in a bubbling fluidized bed are predicted by both Barracuda Virtual Reactor and by a CFD model, and their results were compared.

CPFD Simulation on Wear Mechanisms in Disk–Donut FCC Strippers

In this paper, three cases of Barracuda Virtual Reactor models were established to validate three speculations on wear mechanisms; the simulated locations with the highest wear magnitudes are agreeable with the wear accidents reported in industry.

Comparative study of Transport Disengaging Height (TDH) correlations in gas–solid fluidization

In this publication, Transport Disengaging Height correlations are evaluated across Geldart Groups, polydispersity and velocities.