ABSTRACT

ABSTRACT: The simulation of gas-liquid-solid flow and gas-liquid mass transfer using computational fluid dynamics (CFD) was carried out in a bio-fluidized bed reactor. CFD was properly able to capture the characters of the three-phase flow in the reactor and found that presence of solid restricted the liquid turbulence intensity. It was also revealed that the decreasing gas-liquid mass transfer with the presence of solid was attributed to reduction of turbulence intensity. Furthermore, a model for describing the mass transfer in gas-liquid-solid flow was recommended.