Numerical study of the hydrodynamics and mass transfer in the external loop airlift reactor

The objective of this study was to investigate the hydrodynamics and gas-liquid mass transfer coefficient an external-loop airlift reactor (ELAR). ELAR operated in three cases: different inlet velocities fluids, alcohols solutions (water, 0.5% methanol, ethanol, propanol butanol) concentration methanol (0%, 0.5%, 1%, 2% 5%). influence superficial gas velocity various diluted alcohol on studied. Experimentally, hold-up, liquid volumetric values riser downcomer were obtained from literature source. A computational fluid dynamics (CFD) model developed, based two-phase flow, investigating liquids regarding surface tension, assuming ideal applying finite volume method Eulerian-Eulerian model. determined using CFD artificial neural network effects parameters characteristics simulated. These models compared with appropriate experimental results. successfully simulates number C-atoms transfer.