IONIC MASS-TRANSFER STUDIES IN FLUIDIZED-BEDS WITH COAXIALLY PLACED DISCS ON A ROD AS INTERNAL

Mass transfer data were obtained on the walls of the fluidized beds us ing an electrochemical technique with a potassium ferri-ferro cyanide couple. The disc promoter assembly was used as internal in fluidized b eds, and consisted of a rod on which discs were mounted at equal dista nce. The effect on mass transfer coefficient of particle diameter, voi d fraction, disc diameter and spacing between the discs was evaluated. The entire experimental data were correlated in terms of dimensionles s mass transfer factor, flow factor and other pertinent dimensionless groups of variables covered in the study.