This study presents the first part of a CFD study on the performance of a downer reactor for
biomass pyrolysis. The reactor was equipped with a novel gas–solid separation method …

This manuscript reports the fluid dynamics in the developed flow region of a cocurrent gas–
solid down flow fluidized bed unit. Gas–solid flows are simulated using a Computational …

A computational fluid dynamics (CFD) model for simulating the chemical reaction process in
a gas–particle circulating fluidized bed (CFB) downer is introduced by combining the two …

The heat transfer characteristics of different particles during coal pyrolysis process are of
fundamental importance in a downer reactor, where hot sand particles often serve as the …

It has been widely recognized that input parameters affected the results of Eulerian
simulation of gas–solid flow. In this study, a comparative study was performed to study the …

This manuscript reports “individual” particle cluster information obtained using a Chemical
Reactor Engineering Centre Gas–Solid Optical Probe (CREC-GS-Optiprobe) equipped with …

Countercurrent gas–solid downer reactor has been used in various processes, however,
fundamental studies on the hydrodynamics of such reactors are sparse, especially, there is …

The mixing and segregation characteristics of different types of solid particles in a downer
reactor are of fundamental importance in the pyrolysis of low-rank coals where sand …

Downer reactors are the reactors of choice for fast chemical reactions, such as those
associated with cracking of heavier feedstock in petroleum refineries. The objective of this …

In this study, the Eulerian–Eulerian computational fluid dynamics simulation with the kinetic
theory of granular flow model was successfully used to compute mass transfer coefficients …