Flow Behavior in the Three-Phase Internal-Loop Airlift Reactor with Large Gas Recirculation through the Downcomer

J. Wen, J. Xiaoqiang, C. Xianrui and Y. Peng

Abstract
Liquid velocity, gas holdup and solid holdup in the riser and the downcomer of the gas-liquid-solid three-phase internal-loop airlift reactor with large gas recirculation through the downcomer were investigated. A dynamic model for the description of flow behavior in the three-phase internal-loop airlift reactor with large gas recirculation through the downcomer was developed. The model simulates liquid velocity, gas holdup and solid holdup in the riser and the downcomer with satisfactory accuracy.

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Keywords
Airlift reactors, three-phase, fluid dynamics, modeling