| 摘要 |
<p>A fluidized bed reactor system includes a reaction chamber (112) comprising a circulating (fast) bed, with a first grid (114) for the introduction of fluidizing gas, and a bubbling (slow) fluidized bed (116) having a second grid (120) for introduction of fluidizing gas. The second grid is mounted below the first grid. First (122) and second (132) interconnections are provided between the circulating and bubbling beds. Particles flow from the circulating bed through the first interconnection to the bubbling bed, and vice versa for the second connection. The interconnections are positioned with respect to each other so that the pressure and density conditions within the bed are the sole mechanisms that provide the driving force to control the flow of particles from the circulating bed to the bubbling bed. An indirect heat exchanger (128) may be located in the bubbling bed for cooling particles, and various constructions of partitions (130) may be provided for dividing up the bubbling bed and defining the interconnections.</p> |
