| 摘要 |
The invention relates to an apparatus suited for carrying out physical and chemical processes comprised of two separate unit processes using a particulate matter medium, wherein the second unit process serves for regeneration of the particulate matter contaminated in the first unit process. The apparatus comprises a first reactor (1-3) for carrying out the first unit reaction; a second reactor (4-6) for carrying out the second unit reaction; adapted between the first reactor (1-3) and the second reactor (4-6), a first transfer channel (20) serving for the transfer of contaminated particulate matter from the first reactor to the second; and adapted between the second reactor (4-6) and the first reactor (1-3), a second transfer channel (29) serving for the transfer of regenerated particulate matter from the second reactor to the first. According to the invention, the first reactor (1-3) comprises a circulating fluidized-bed reactor with a reaction space of an axially annular cross section, and the second reactor (4-6) comprises a circulating fluidized-bed reactor surrounding the first reactor in a symmetrically concentric fashion, whereby also the second reactor has a reaction space of an axially annular cross section. The construction according to the invention makes it possible to implement also large equipment with a small height-to-diameter ratio, whereby the footprint/space requirements of the equipment are minimized and problems associated with thermal expansion are reduced essentially.
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