| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a gasification method for biomass, with which gasification efficiency and a gas calorific value are raised. <P>SOLUTION: The method comprises a thermal decomposition process for separating biomass into pyrolysis gas and a solid carbonized product at 400-900°C by indirect heating in an air cut-off state, a gas reforming process for converting high-boiling liquid gas to be liquefied at a normal temperature under normal pressure contained in the pyrolysis gas obtained by the thermal decomposition process into low-boiling gases such as hydrogen, carbon monoxide, methane, etc., not to be liquefied at a normal temperature under normal pressure by reforming reaction using a catalyst for reaction at 400-900°C and a combustion gasification process of a solid carbonized product for burning and gasifying the solid carbonized product. The combustion gas of the solid carbonized product is introduced into the thermal decomposition process or the thermal decomposition process and the gas reforming process and is used as a heat source for the indirect heating. <P>COPYRIGHT: (C)2005,JPO&NCIPI |
