A New Method to Determine Bed Parameters of Fluidized Catalyst Beds by Use of Gas Absorption with Liquid Supported on Fine Particles

Abstract

A new model reaction to investigate the behavior of fluid beds is proposed. This method utilizes the absorption of CO₂ gas in ambient air into an alkaline solution that is supported on porous fine particles.
Alumina particles of 60μm mean diameter, which fluidized smoothly in a polymethylmethacrylate bed of 0.10m in diameter, were first prepared by soaking aqueous NaOH solution. Reactivity of sample particles taken from the fluid bed was measured in a fixed bed and had a pseudo-first order reaction rate constant of around 10s^-1.