A rotating packed device for intensifying mass transfer by centrifugal force was investigated. The apparatus was proved to be of larger capacity

higher efficiency

smaller volume and smaller weight as compared with ordinary separation devices. The rotor dimension was 300 mm in diameter and 40 mm in height

and packed with packings. Distillation test was made with ethanol-water binary mixture in a single rotor device. The data was obtained at 6.9t/(m2·h) reflux rate based on the inner surface and at 900 rpm. The packing thickness inradial direction equivalent to a theoretical plate was 3.93 cm for the φ6×6×0.1 ring packing

i.e

packings one meter in thickness was equivalent to 25 theoretical plates in terms of separation efficiency.