With a N₂-water system , the mass t ransfer process of two types of packing with different shape were experimentally studied in a rotating packed bed ( RPB) . The relations of volumet ric mass-transfer coefficient with rotating speed , liquid flow rate and gas flow rate were measured , and mass t ransfer characteristics of two
packings were investigated. By comparing mass t ransfer coefficient s of two packings , one packing that had better mass transfer performance was sorted out . The effect of specific area of packing on volumetric mass transfer coefficient was discussed further , and it was justified that gas-liquid mass transfer intensification is primarily the result of great effective mass transfer area generated by liquid atomization. Finally , based on the experimental data , the empirical correlation equation of the mass t ransfer coefficient was derived by regression.