PERFORMANCE-CHARACTERISTICS OF A PACKING WITH BOUNDARY-LAYER TURBULIZERS .3. LIQUID-FILM CONTROLLED MASS-TRANSFER

Liquid film controlled mass transfer in a novel design of a honeycomb packing (Turbo-Pack) with turbulizers in the region of the boundary la yer has been studied. For comparison, packings without turbulizers hav e also been investigated. Dimensionless equations for evaluation of ma ss transfer are proposed and their constants have been analyzed statis tically. It is shown that the presence of turbulizers leads to an incr ease of the mass-transfer coefficient by up to 55% and to a decrease o f up to 4.5-times in the packing pressure drop per mass transfer unit. A comparison over the most effective packings known from the literatu re shows that, as far as its low pressure drop per mass transfer unit is concerned, the novel packing is superior to all other packings.