FLUIDIZED BED GASIFICATION SYSTEM

摘要

PROBLEM TO BE SOLVED: To provide a fluidized bed gasification system by which an inert gas-free high calorie gasified gas is obtained. SOLUTION: The fluidized bed gasification system is equipped with a circulation fluidized bed combustion furnace 10 in which char C generated by gasification and a fluid medium are fluidized at a high speed by the air from a window box 12 and fluid medium S is heated by burning char C, a separator 20 in which fluid medium S flowing from circulation fluidized bed combustion furnace 10 is separated and a bubbling fluidized bed gasification furnace 24 in which the fluid medium separated in separator 20 is introduced, the medium is fluidized with steam, the supplied raw material is gasified and the fluid medium and part of the unreacted char are circulated back to circulation fluidized bed combustion furnace 10. COPYRIGHT: (C)2005,JPO&NCIPI