| 摘要 |
PROBLEM TO BE SOLVED: To gasify a material at a high gasification efficiency, and to gasify a material having different temperatures to be gasified by one fluidized bed gasification facility. SOLUTION: The fluidized bed gasification method has: a fluidized bed burning furnace 1 for heating the flowing medium 9 by burning the char; a separator 21 for separating the flowing medium 9 from the burned gas 6 led out from the fluidized bed burning furnace 1; a fluidized bed gasification furnace 2 for introducing the flowing medium 9 separated by the separator 21 through a descending pipe 23, feeding the material 31 and a gasifying agent 27 and gasifying the material 31 by the fluidized bed 29; and a feeding flow passage for circulating the char and the flowing medium produced when the material 31 is gasified in the fluidized bed gasification furnace 2 to the fluidized bed burning furnace 1. The fluidized bed gasification furnace 2 is constituted by a plurality of gasification devices 22a, 22b, and the gasified gases 32a, 32b produced in the respective gasification devices 22a, 22b can be separately taken out. COPYRIGHT: (C)2009,JPO&INPIT
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