Device for injecting successive layers of fluid in a circulating fluidized bed and methods using same

Abstract From the Canadian patent

The invention concerns a device for injecting successive layers of fluid in a circulating fluidized bed and a method of catalytic polymerization drying and or other treatments of solid particles or of catalytic transformation of fluids wherein a series of injectors (12) distributed around a stationary circular wall (2) of a circular reaction chamber inject along said wall successive layers of one or more fluids (13) which drive the solid particles (17) passing through said chamber, in a fast rotational movement whereof the centrifugal force concentrates said particles along said wall thereby forming a fluidized bed circulating about a central chute (3) through which the fluids are evacuated.