Mass transfer between a gas phase and two non miscible liquid phases.Use of the equivalent absorption capacity concept for gas/liquid/liquidcontactor design.
Résumé
A methodol. for the design of absorbers contacting a gas phase loaded with hydrophobic VOC and two immiscible liq. phases (air/water/silicone oil) is presented. The design is based on a concept of mass transfer between phases called the "equiv. absorption capacity". It is demonstrated that VOC absorption should be restricted to pollutants characterized by an air/silicone oil partition coeff. around 3 to 4 Pa.m3.mol-1 or less. In this case, the gas-liq. mass transfer must be carried out between air and pure silicone oil, allowing a minimization of the diam. of the gas/liq. contactor. [on SciFinder(R)]