Local solid mixing in gas–solid fluidized beds

N Mostoufi, J Chaouki - Powder Technology, 2001 - Elsevier
Diffusivity of the solid particles in a 152-mm ID gas–solid fluidized bed was determined at
different regimes of fluidization. The gas was air at room temperature and atmospheric …

On the axial movement of solids in gas-solid fluidized beds

N Mostoufi, J Chaouki - Chemical Engineering Research and Design, 2000 - Elsevier
Solids movement in a gas-solid fluidized bed was monitored by a Radioactive Particle
Tracking (RPT) technique. The gas was air at room temperature and atmospheric pressure …

Flow structure of the solids in gas–solid fluidized beds

N Mostoufi, J Chaouki - Chemical Engineering Science, 2004 - Elsevier
Existence of clusters in dense fluidized beds was investigated by analyzing the time-position
data of a tracer obtained in several radioactive particle tracking experiments. It was found …

Detailed measurements of flow structure inside a dense gas–solids fluidized bed

H Zhu, J Zhu, G Li, F Li - Powder Technology, 2008 - Elsevier
Detailed local flow structures are investigated in bubbling and turbulent fluidized bed with
FCC particles. The operating conditions ranges from 0.06 to 1.4 m/s. Extensive experiments …

Measurement of overall solids mass flux in a gas–solid circulating fluidized bed

S Bhusarapu, P Fongarland, MH Al-Dahhan… - Powder technology, 2004 - Elsevier
It is important to know the overall solids flux and solids Cycle Time Distribution (CTD) to
properly characterize Circulating Fluidized Bed (CFB) systems. Although conceptually …

Detailed hydrodynamics of high flux gas–solid flow in a circulating turbulent fluidized bed

M Qi, S Barghi, J Zhu - Chemical engineering journal, 2012 - Elsevier
Hydrodynamics of gas–solid flow were experimentally studied in depth in a circulating
turbulent fluidized bed (CTFB) using FCC particles of 76μm at a wide range of air velocities …

Measurements of solids concentration and axial solids velocity in gas-solid two-phase flows

JJ Nieuwland, R Meijer, JAM Kuipers… - Powder Technology, 1996 - Elsevier
Several techniques reported in the literature for measuring solids concentration and solids
velocity in (dense) gas-solid two-phase flow have been briefly reviewed. An optical …

CFD and experimental studies of solids hold-up distribution and circulation patterns in gas–solid fluidized beds

GN Ahuja, AW Patwardhan - Chemical Engineering Journal, 2008 - Elsevier
The hydrodynamics of a gas–solid fluidized bed was studied using a combination of
experiments and CFD simulations. Experiments were conducted with polypropylene …

Flow structure of the solids in a 3‐D gas–liquid–solid fluidized bed

F Larachi, M Cassanello, J Chaouki, C Guy - AIChE journal, 1996 - Wiley Online Library
Local and macroscopic solids flow structure and kinematics in a 3‐D gas–liquid–solid
fluidized bed were studied using a noninvasive radioactive‐particle tracking (RPT) …

Solid mass fluxes in circulating fluidized beds

B Herb, S Dou, K Tuzla, JC Chen - Powder Technology, 1992 - Elsevier
Experimental measurements of local solid mass flux were made in the riser component of
two different circulating fluidized beds (CFBs). Tests were conducted in both a lab-scale riser …