Design and Investigation of a 3D-Printed Micro-Fluidized Bed

Micro-fluidized bed has aroused much attention due to its low-cost, intensified-process and fast-screening properties. In this paper, a micro-fluidized (15 × 15 mm in cross-section) was designed fabricated with the use of stereolithography printing technique, for investigation bubbles’ hydrodynamics comparison solids (3D-printed particles VS fungal pellets) fluidization characteristics. liquid–gas system, bubble flow regime started from mono-dispersed homogeneous regime, followed by poly-dispersed transition heterogeneous increasing gas flowrates 3.7 mL/min 32.7 mL/min. The impacts operating parameters such as flowrate, superficial liquid velocity sparger size on size, volume fraction have been summarized. liquid–solid fluidization, different solid regimes both pellets were identified. From expansion results, higher Umf 7.8 mm/s observed compared that 2.3 because hyphal structures increased surface friction but also tended agglomerate. similar R–Z exponent n (5.7 5.5 particles, respectively) between explained same diameter, Ut 436 µm/s than 196 is consequence density particles. This paper gives insights development MFB potential processing.