Abstract: A method of combustion and a combustion plant in which absorbent is regenerated is described herein. During the combustion of a fuel in a combustion chamber enclosing a fluidized bed, a fuel and an absorbent are supplied to the fluidized bed. The combustion gases generated during the combustion are collected and purified in a separating member by separation of solid material from the combustion gases. The separated solid material is recirculated to the fluidized bed through a channel, and a gaseous medium is supplied in a controlled manner to the separated solid material present in the channel in order to displace the combustion gases and provide a chemical reaction.

Abstract: A method of combustion in a pressurized, fluidized bed and in the freeboard thereof. The combustion method is further characterized by the recirculation of solid sulfur absorbing materials. A gas channel, designed so as to prevent fluidizing gas from entering the channel from below, is provided such that it opens to the freeboard and to a separating member which separates particulate matter from the combustion gasses.

Abstract: A power plant is disclosed having a combustion chamber (1) in which the combustion of a combustible material is performed, while forming hot combustion gases to drive a gas turbine device (14, 20, 27). A topping combustion device (8, 23) is arranged to receive the combustion gas and raise its temperature to a level suitable for the gas turbine device. A gasifying reactor (1) is arranged to produce a combustible gas for combustion in the topping combustion device (8, 23). A first conduit member (18) is arranged to supply an oxygen-containing gas, necessary for gasification, to the gasifying reactor (10) and a second conduit member (9) is arranged to supply the combustible gas from the gasifying reactor (10) to the topping combustion device (8, 23). A member (35) is arranged at the second conduit member (9) and adapted to cool down the combustible gas supplied to the topping combustion device (8, 23).

Abstract: A combustion plant for a combustion process is disclosed. The plant has a pressurized combustion chamber (1), which encloses a fluidized bed and in which combustion of a fuel is to take place while producing combination gases, a gasifying device (40), which is arranged to produce a combustible gas and a degassed combustible product, and a transportation device (6, 44) for discharging the product from the gasifying device (40) and supplying it to the combustion chamber (1) for combustion of the product in the combustion chamber. The transportation device has a discharge conduit (44) connected to the gasifying device (40) and is arranged to discharge the product from the gasifying device (40). The discharge conduit (44) has a cooling member (45), which is arranged to cool the product discharged from the gasifying device (40), and a pneumatic supply conduit device.