Resumo:
Abstract - The present work collects general information on the main operating parameters in
BFBG and presents a discussion of the influence of the operating parameters on the generated
gas. Considering the main process characteristics, was described and analyzed the
hydrodynamic performance of a new equipment of BFBG laboratory-scale operating at
atmospheric pressure. For this purpose, technical details of the facility and materials used are
presented, subsequently, fluidization tests at different temperatures are performed, aiming to
compare with the main mathematical models available in the literature that describe the physical
characteristics of the bed. The tests were performed using Electrofused Alumina Oxide (High Alumina) as bed material and air as a fluidizing agent. The results indicate that homogeneous
fluidization occurs at velocities greater than 1.7 times the minimum fluidization velocity. The
physical characteristics of the bubbles agree with the models proposed in the literature, and the
formation, growth, coalescence, and eruption of bubbles are concentrated near the reactor walls.
Increasing the fluidization velocity increases the coalescence of the bubbles, this gives rise to
larger eruptions that may favor mixing of the fuel with the bed material.
