CPFD Simulations on a Chlorination Fluidized Bed Reactor for Aluminum Production: an Optimization Study

Study of the Thermal Performance of an Industrial Alumina Chlorination Reactor based on CPFD Simulation

“…The CPFD simulations are based on the particle size distribution and reaction (pure 𝛾-alumina chlorination) in an isothermal condition at 700℃ (Barahmand et al, 2021b). The geometry (cylindrical reactor with extended section) and other operational conditions (Barahmand et al, 2021a) for the pure 𝛾alumina chlorination. In Barracuda ® , the thermal wall of a model applies a user-defined temperature to the reactor wall.…”

CPFD Modeling to study the Hydrodynamics of an Industrial Fluidized Bed Reactor for Alumina Chlorination

“…Thus, the results show that the bed aspect ratio (above unity) harms the reaction conversion. Although the H/D equal to unity shows the best performance in reaction conversion, to choose a proper bed aspect ratio, it is necessary to consider the whole hydrodynamics of the bed (Barahmand et al, 2021a(Barahmand et al, , 2021b. Too low H/D can cause channeling, and it may reduce the reaction efficiency.…”

Sensitivity and Uncertainty Analysis in a Circulating Fluidized Bed Reactor Modeling

“…The present study aims to find the parameters that a circulating fluidized bed is sensitive to (using the local SA method) and apply the fuzzy set theory to the mathematical calculations. As numerical examples, the calculated minimum fluidization velocity and cyclone efficiency for the alumina chlorination FBR (Barahmand et al, 2021a) will be compared with the CPFD results. The mathematical approach focuses on Generalized Trapezoidal Fuzzy Numbers (GTrFN) algebraic operations through α-cuts (Zhang et al, 2014) and its application in the CFB.…”