Municipal waste fluidized-bed gasification melting furnace with power recovery turbine first domestic use by Sakata refuse disposal union

摘要

Japan's first municipal waste, fluidized-bed, gasification-melting furnace system, equipped with a power recovery steam turbine, has started operation at Sakata City, Japan. The dioxin concentration in the exhaust gas of this system is being controlled to be below the allowable standard [0.1 ng-TEQ/m{sup}3(NTP)] and the produced slag is effectively encapsulated and used as pavement material (inter-locking blocks). The exhaust gas from the furnace is used for driving a power recovery turbine (max. output 1990 kW) and excess electricity produced is being sold to the local electricity company.