Fluid bed combustor and apparatus for cooling particulate solids

摘要

A fluidized bed reactor (10) wherein a sulfur-containing particulate fuel is combusted or gasified in a fluidized bed (30) of particulate material, which includes a sulfur oxide absorbent, is provided with a solids cooling apparatus (40) adapted to receive particulate material draining from the bed and cool same via indirect heat transfer to a cooling fluid.