Gas Holdup and Pressure Drop in Three-Phase Horizontal Flows of Gas-Liquid-Fine Solid Particles System

Abstract

Gas holdups and pressure drops of gas-liquid-solid cocurrent three-phase flow containing fine solid particles of 30, 60 and 100μm average size were measured in horizontal tubes and the following results were obtained. (1) Gas holdups at the conditions of homogeneous slurry flow are the same as those of gas-liquid two-phase flow. However, the heterogeneity of slurry flow reduces the gas holdup. Considering these aspects, a gas holdup correlation of gas-liquid-solid three-phase horizontal flow is proposed to correlate the data over a wide range of operating conditions. (2) Pressure drops of gas-liquid-solid three-phase flow in horizontal tubes are more considerably influenced by solid intermixing than those in vertical tubes. A correlation to describe the pressure drop of gas-liquid-solid three-phase horizontal flow is proposed. © 1986, The Society of Chemical Engineers, Japan. All rights reserved.