| 摘要 |
A fluidized bed reactor system (10) and a method for operating said system is provided. The reactor system comprising: a fluidized bed reactor chamber (18), a particle separator (26) connected to the reactor chamber, for separating solid material from exhaust gases. A gas cooler (14) having cooling surfaces (30) is connected to the particle separator. According to the invention means (42, 44) are provided for branching off a flow of solid bed material from the material separated in the particle separator (26) and for introducing said branched off flow of bed material into the gas cooler (14). A flow of bed material is branched off from the main flow of solid particles, before or after discharging said first flow of solid particles from the particle separator. The branched off flow of solid particles are introduced into the gas discharged from the separator during, or before cooling of the gas, so that these particles mechanically dislodge deposits from cooling surfaces.
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