GAS-LIQUID MASS-TRANSFER IN FIXED-BEDS WITH 2-PHASE COCURRENT DOWNFLOW - GAS NEWTONIAN AND NON-NEWTONIAN LIQUID-SYSTEMS/

New data of gas-liquid mass transfer for cocurrent downflow through pa cked beds of porous and non-porous particles are presented. Mass trans fer parameters for air/carbon dioxide/water, air/carbon dioxide/carbox ymethylcellulose solution and air/carbon dioxide/sodium hydroxide syst ems were evaluated by least square tit of the calculated CO2 concentra tion profiles in gas phase to the experimental values. The volumetric liquid-side mass transfer coefficient increases with the increase of t ile flow consistency index of the liquid. A comparison of the volumetr ic liquid-side mass transfer coefficient values evaluated with and wit hout taking into account the axial dispersion shows that the influence of the liquid axial dispersion is significant at low liquid velocity and high CMC concentrations, and the influence of the gas axial disper sion is insignificant.