Fluidized bed reactor

摘要

A process chamber (20) is placed in connection with a fluidized bed reactor for utilizing internal or external circulation of solid material or both in heat transfer purposes. Said process chamber (20) is located inside the furnace (30) of a circulating fluidized bed reactor adjacent to at least one of the furnace walls. The interior of said process chamber (20) is provided with heat exchanger means (8) for heat transfer from the solid material to heat transfer medium inside the heat exchanger means. The process chamber (20) comprises a top closed barrier wall forming the roof (21) of the process chamber, wherein the inlet (9) of the solid material into the process chamber is arranged to the lower part of the wall (42) of the process chamber (20) and the outlet (15) of the solid material out of the process chamber is arranged to the upper part of the wall of the process chamber. Prior to the said process chamber (20) in the direction of the flow of said solid material an inlet chamber (7) is provided inside the furnace (30) of the circulating fluidized bed reactor for directing the solid material to the inlet (9) of the process chamber (20).