Effect of surface-active agents on the phase holdups of three-phase fluidized beds

• Published in: Chemical engineering and processing Vol. 45; no. 9; pp. 764 - 772
• Main Authors: Dargar, Puneet, Macchi, Arturo
• Format: Journal Article
• Language: English
• Published: Lausanne Elsevier B.V 01.09.2006; Elsevier
• Subjects: Applied sciences; Bubble column; Chemical engineering; Exact sciences and technology; Fluidization; Holdups; Hydrodynamics; Hydrodynamics of contact apparatus; Reactors; Surfactants; Three-phase fluidization; Hydrodynamics; Holdups; Three-phase fluidization; Surfactants; Bubble column; Gas holdup; Perforated tray; Perforated plate; Foaming; Glass; Fluidization; Operating conditions; Flow regime; Foam; Surface tension; Bubble flow; Aqueous solution; Reactor; Fluidized bed

Experiments were performed at ambient temperature and pressure in a 127-mm inner diameter column with air, 1.2 and 5-mm spherical glass beads and various aqueous solutions containing surface-active agents. Perforated plates were employed as the gas and liquid distributors. Gas and liquid velocities...