Asea Brown Boveri Ab

Abb Carbon Ab

Dirk Veenhuizen

Roine Br&auml;nnstr&ouml;m

Anders L&ouml;vgren

A power plant is disclosed having a combustion chamber (,) in which the combustion of a combustible material is performed, while forming hot combustion gases to drive a gas turbine device (,). A topping combustion device (,) is arranged to receive the combustion gas and raise its temperature to a level suitable for the gas turbine device. A gasifying reactor (,) is arranged to produce a combustible gas for combustion in the topping combustion device (,). A first conduit member (,) is arranged to supply an oxygen-containing gas, necessary for gasification, to the gasifying reactor (,) and a second conduit member (,) is arranged to supply the combustible gas from the gasifying reactor (,) to the topping combustion device (,). A member (,) is arranged at the second conduit member (,) and adapted to cool down the combustible gas supplied to the topping combustion device (,). A purifying member (,) is provided on the second conduit member (,) downstream of the cooling member (,) and adapted to purify the cooled, combustible gas prior to being supplied to the topping combustion device (,).

Gasifier and a power plant

A combustion plant for a combustion process is disclosed. The plant has a pressurized combustion chamber (,), which encloses a fluidized bed and in which combustion of a fuel is to take place while producing combination gases, a gasifying device (,), which is arranged to produce a combustible gas and a degassed combustible product, and a transportation device (,) for discharging the product from the gasifying device (,) and supplying it to the combustion chamber (,) for combustion of the product in the combustion chamber. The transportation device has a discharge conduit (,) connected to the gasifying device (,) and is arranged to discharge the product from the gasifying device (,). The discharge conduit (,) has a cooling member (,), which is arranged to cool the product discharged from the gasifying device (,), and a pneumatic supply conduit device. The pneumatic supply conduit device (,) is arranged downstream of the cooling member (,) to connect the discharge conduit (,) to the combustion chamber (,) and supply the product to the combustion chamber using a pressurized gas. The pressurized gas contains oxygen supplied directly to the supply conduit device (,) by a compressor (,).

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Finspång, Sweden

Dirk Veenhuizen