METHOD AND APPARATUS IN A FLUIDIZED BED REACTOR

摘要

The present invention relates to an apparatus in a fluidized bed reactor comprising a furnace (2) defined by side walls (4), a roof (6) and a bottom (5) and provided with a solid particle bed. The furnace is further provided with at least one principally vertical vaporizing chamber (12), the height of which is at least 80 % of the height of the furnace and the vertical walls (13) of which are formed of straight water tube panels. The present invention also relates to a method of recovering heat in such a fluidized bed reactor.