Mass Transfer Characteristics in Gas-liquid-liquid System
Résumé
Experimental results of mass transfer in air-water
system with a dispersed immiscible organic liquid in a
bubble column 0.076 m in diameter for seven different
organic liquids at various hold-up are presented.
Experiments are carried out at gas superficial velocity
in the range 0.0052-0.026 m/s at 293 K. The volumetric
mass transfer coefficient, kLa is determined by dynamic
gas absorption technique. Overall gas hold-up is also
measured. Slight addition of n-decane, dodecane and
n-heptane in air-water medium significantly enhances
mass transfer from the gas phase, to the continuous
aqueous phase whereas toluene, anisole and 2-ethyl-
1-hexanol retard mass transfer.
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