| 摘要 |
[PROBLEMS] To provide a system for gasifying a biomass which allows the prevention of problems caused by a tar component in a fuel gas, and also can achieve the effective use form a thermal view point of the fuel gas including said tar component; and a method for operating the system. [MEANS FOR SOLVING PROBLEMS] In a supply system (3) for supplying a fuel gas from a gasification furnace (1) for forming the fuel gas from a biomass, to a system (2) for using the gas, a gas modification tower (4) being heated to a treating temperature required for the thermal decomposition of a tar component in the fuel gas is provided. And provided also is a fuel gas introduction system (5), which introduces a fuel gas from the gas modification tower (4) to the gasification furnace (1) as a fuel for a gasification furnace when said gas modification tower (4) has a temperature lower than the treating temperature. ® KIPO & WIPO 2007
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