Abstract
Recently, a rotating fluidized bed has attracted special interests, since it can fluidize very fine particles uniformly. In this study, handling of nano-particles has been attempted by using a novel rotating fluidized bed, which is basically consists of a plenum chamber and a horizontal porous cylindrical air distributor that rotates around its axis of symmetry inside the chamber. First of all, fluidization behaviors of nano-particles having their sizes between 10-20 nano-meters were investigated. The pressure drop, minimum fluidization velocities and bed expansion were measured under various centrifugal accelerations caused by the vessel rotation. The results indicated that nano-particles could be fluidized uniformly in a rotating fluidized bed. The mixing characteristics of nano-particles have also been investigated under various mixing times and centrifugal accelerations.
