PROBLEM TO BE SOLVED: To provide a wet biomass incineration system capable of operating at a low running cost and preferable combustion efficiency while restricting the cost of equipment by restricting the loss of heat recovery of a power generator.SOLUTION: A wet biomass incineration system comprises: a dry room and combustion chamber partitioned with a partition wall; an incineration furnace provided with a fluidized bed on which a bed material flows; an electric power generation device for generating power using exhaust gas from the incineration furnace; a super heated steam supply passage connected to a lower part of the fluidized bed on the side of the dry room for supplying supper heated steam for drying wet biomass in the dry room; an oxidation gas supply passage connected to a lower part of the fluidized bed on the side of the combustion chamber for supplying oxidation gas for burning dry biomass in the combustion chamber; and a supper heated steam discharge passage connected to the dry room for discharging the supper heated steam used for drying wet biomass outside the dry room so as to feed it to the electric power generation device, in which the temperature of the fluidized bed in the dry room is set less than the thermal decomposition temperature of the dry biomass; and the exhaust gas is supper heated steam circulating through the supper heated steam discharge passage.SELECTED DRAWING: Figure 1
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