For the mass transfer experiments, the operational variables
were a rotor speed of 50–300 rpm; a phase ratio of Vd/(Vc +
Vd) = 0.41–0.54, where Vd and Vc are the superficial velocities of
the dispersed and continuous phases, respectively; and a fatty acid
content of 5.5–11.7 mass% in the oil feed stream. Inside the column,