Liquid dispersion is very important for the modelling of liquid flow in a rotating packed bed (RPB) when an Eulerian porous medium approach employed. For investigating effect practical RPB, 3D model has been established coupled with appropriate interfacial, drag and forces formulations. The sensitivity parameters employed these formulations thoroughly analyzed. New forms resistance effective in...

Herein, we demonstrate that a homogeneous catalyst can be prepared continuously via reaction with a packed-bed of a catalyst precursor. Specifically, we perform continuous proline catalyzed α-aminoxylations using a packed-bed of L-proline. The system relies on a multistep sequence in which an aldehyde and thiourea additive are passed through a column of solid proline, presumably forming a solub...

A lot of metallurgical processes take places in shaft furnaces, where reacting gas carrying powders flows up in packed bed of descending metallurgical materials. Gas + powder two phase flow in fixed packed bed has been investigated by author for many years 1 . At present author undertakes the investigations with moving bed. Physical model with glass bed and glass powders was constructed. The ex...

• Pioneering work applying Surface Renewal Theory to model rotating packed bed. The first dynamic distributed process for bed absorber. Dissecting physical phenomenon of mass transfer inside process. New experimental data RPB Absorber validation. Case studies absorber through both steady state and simulations. Rotating beds can reduce the equipment size costs in solvent-based carbon capture. Ho...

Pullulanase from Bacillus acidopullulyticus was purified on a packed bed and a fluidized bed of calcium alginate beads. The binding of enzyme activity to the medium was found to follow Langmuir isotherm pattern. The maximum binding capacity was 1476 U ml(-1) matrix and the dissociation constant was 142 U ml(-1). The dynamic binding capacities at 5% breakthrough in the packed and fluidized beds ...

Abstract This study explores the possibility of applying high-gravity rotating packed bed (HGRPB) in removing H 2 S and CO from biogas. Ca(OH) aqueous solution was used as absorbent this study. Different experimental conditions including pH, speed ( R ) HGRPB, gas flow rate Q G ), liquid L were investigated with respect to removal efficiency E . The simulated results show that optimal using HGR...

We simulate size segregation in granular mixtures which are almost completely packed in a rotating drum. Instead of a 3D drum, we simulate a 2D thin rotating box which is almost completely packed with granular mixtures. The phase inversion of a radially segregated pattern which was found in a 3D experiment is qualitatively reproduced with this simulation. A global convection appears after a rad...