Based on mean residence time, the ratio of
effective diffusivities, the ratio of axial velocities and the
empty volume fraction of the reactor were calculated. For
the flow rates studied the ratio of effective diffusivities
ranged from 1.3 to 1.8, the palm oil axial velocity was
higher than that of the methanol, and when the palm oil
flow rate increased, the empty volume fraction of the
reactor decreased.