Abstract: The present invention is directed to the provision of a method for efficiently producing a feedstock gas for use in the synthesis of liquid fuels including methanol by gasification of harbaceous plant or woody biomass feedstocks. Specifically, the present invention relates to a method for gasifying biomass to produce a feedstock gas for use in the production of liquid fuels including methanol, characterized by comprising the step of bringing a biomass-containing organic feedstock into fluid contact with a gasification accelerator comprising a clay having a catalytic function and/or a heating medium function in a gasification reaction zone under a raised temperature condition in the presence of a gasifying agent to convert the organic feedstock to gas useful for the production of a liquid fuel.

Abstract: The present invention is directed to the provision of a method for efficiently producing a feedstock gas for use in the synthesis of liquid fuels including methanol by gasification of harbaceous plant or woody biomass feedstocks. Specifically, the present invention relates to a method for gasifying biomass to produce a feedstock gas for use in the production of liquid fuels including methanol, characterized by comprising the step of bringing a biomass-containing organic feedstock into fluid contact with a gasification accelerator comprising a clay having a catalytic function and/or a heating medium function in a gasification reaction zone under a raised temperature condition in the presence of a gasifying agent to convert the organic feedstock to gas useful for the production of a liquid fuel.

Abstract: A pressurized internal circulating fluidized-bed boiler is incorporated in a combined-cycle electric generating system in which a fuel such as coal, petro coke or the like is combusted in a pressurized fluidized bed and an exhaust gas produced by the combusted fuel is introduced into a gas turbine. The pressurized internal circulating fluidized-bed boiler includes a pressure vessel, a combustor disposed in the pressure vessel and a main fluidized bed combustion chamber provided with an air diffusion device. A thermal energy recovery chamber is partitioned from the main combustion chamber by an inclined partition wall. A fluidized medium flows into and out of the main combustion chamber and the thermal energy recovery chamber. A free board is provided integrally above the main combustion chamber and the thermal energy recovery chamber so that combustion gas from the main combustion chamber and the thermal energy recovery chamber is mixed in the free board.

Abstract: A pressurized internal circulating fluidized-bed boiler is incorporated in a combined-cycle electric generating system in which a fuel such as coal, petro coke or the like is combusted in a pressurized fluidized bed and an exhaust gas produced by the combusted fuel is introduced into a gas turbine. The pressurized internal circulating fluidized-bed boiler includes a pressure vessel, a combustor disposed in the pressure vessel and a main fluidized bed combustion chamber provided with an air diffusion device. A thermal energy recovery chamber is partitioned from the main combustion chamber by an inclined partition wall. A fluidized medium flows into and out of the main combustion chamber and the thermal energy recovery chamber. A free board is provided integrally above the main combustion chamber and the thermal energy recovery chamber so that combustion gas from the main combustion chamber and the thermal energy recovery chamber is mixed in the free board.