TY - JOUR
T1 - Quantifying particle movement in a spout-fluidized bed with irregular feedstock morphology
AU - Conry, Bryan
AU - López-Honorato, Eddie
AU - Heldt, Ryan
AU - Gerczak, Tyler
N1 - Publisher Copyright:
© 2025 Elsevier Ltd
PY - 2025/3/1
Y1 - 2025/3/1
N2 - The spout-bed fluidization behavior of nonspherical, 140 μm SiC feedstock was quantified via particle image velocimetry for varying gas distributor geometries. A bench-scale, room-temperature fluidization setup was assembled to model a 50 mm fluidized bed chemical vapor deposition (FB-CVD) system, and fluidized bed motion was captured using a high-speed camera. Modular tips with varying inlet geometries were 3D printed and tested on the bench-scale rig using identical feedstock and gas flow rates in the range of 3.0–9.0 L/min. Fluidization behavior was quantified by extracting parameters of the bed velocity, frequency, dead time, and other measurements, which were ranked for each inlet geometry configuration tested. The results from this work demonstrate that changing the path of inlet gas flow can significantly change the hydrodynamics within a spout-fluidized bed under identical feedstock, loading, and flow rate conditions, potentially enabling experimental control of particle fluidization behavior for a given condition. Moreover, composite rankings of fluidization behavior for unique distributor geometries hold potential to guide the design of FB-CVD experiments for various engineering and scientific applications.
AB - The spout-bed fluidization behavior of nonspherical, 140 μm SiC feedstock was quantified via particle image velocimetry for varying gas distributor geometries. A bench-scale, room-temperature fluidization setup was assembled to model a 50 mm fluidized bed chemical vapor deposition (FB-CVD) system, and fluidized bed motion was captured using a high-speed camera. Modular tips with varying inlet geometries were 3D printed and tested on the bench-scale rig using identical feedstock and gas flow rates in the range of 3.0–9.0 L/min. Fluidization behavior was quantified by extracting parameters of the bed velocity, frequency, dead time, and other measurements, which were ranked for each inlet geometry configuration tested. The results from this work demonstrate that changing the path of inlet gas flow can significantly change the hydrodynamics within a spout-fluidized bed under identical feedstock, loading, and flow rate conditions, potentially enabling experimental control of particle fluidization behavior for a given condition. Moreover, composite rankings of fluidization behavior for unique distributor geometries hold potential to guide the design of FB-CVD experiments for various engineering and scientific applications.
KW - Aspherical feedstock
KW - Particle bed velocity
KW - Particle image velocimetry
KW - Spout-bed fluidization
UR - http://www.scopus.com/inward/record.url?scp=85214832123&partnerID=8YFLogxK
U2 - 10.1016/j.ces.2025.121197
DO - 10.1016/j.ces.2025.121197
M3 - Article
AN - SCOPUS:85214832123
SN - 0009-2509
VL - 306
JO - Chemical Engineering Science
JF - Chemical Engineering Science
M1 - 121197
ER -