| 摘要 |
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.
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