Analysis of a model for a nonisothermal continuous fluidized bed catalytic reactor

Dynamic Response of Fluidized Beds

“…In a series of articles, Amundson and his co-workers developed models which included three-phases within the fluidized bed (Bukur et al, 1974), predicted the transient response based on the two-phase theory of fluidization included axial dispersion and modeled the combustion of carbon particles (Gordon and Amundson, 1976). A summary of fluidized bed combustion models is provided by Davidson et at.…”

Mathematical modeling of fluidized‐bed chlorination of rutile

“…Considering other uncertainties in the fluidized-bed model, such as the estimation of gas-interchange parameter and chemical kinetics, the description of the fluidized bed was simplified by neglecting the mass-transfer resistance between the bubble and cloud phases and considering the cloud as part of the bubble phase. The exchange of gaseous species was accordingly simplified to be between the bubble and the dense phases, as has been done before (Drinkenburg and Rieteura, 1972;Bukur et al, 1974;Youn and Park, 1989;Rhee and Sohn, 1990b). 2. Fresh rutile particles are fed continuously and mixed with existing particles instantaneously.…”

“…There are a number of investigations that report on the chlorination of titanium-bearing materials in the fluidized bed (Rhee and Sohn, 1990a, c;Harris et al, 1976). Several mathematical models have been developed to simulate the fluid dynamics and reaction phenomena in the bed Bukur et al, 1974;Fuwa et al, 1978;Youn and Park, 1989;Rhee and Sohn, 1990b). Fuwa et al (1978) introduced the bubble assemblage model to interpret the selective chlorination of oxidized ilmenite ore in the batch-type fluidized bed.…”

Fluidized bed catalytic reactor: a learning model for fast reaction

“…As a consequence, the influence of backmixing in the dense (emulsion) phase can be expected to be quite negligable save at modest values of V, i.e., for gently bubbling (academic?) beds (Bukur et al, 1974).…”