| 摘要 |
A multistage turbulent circulating fluidized bed thermal reactor comprising a riser, a gas-solids separator and a solids downcomer, said riser being divided into a sequence of stages by a plurality of concentric tapered reductions of the internal horizontal cross-sectional area, and working at gas velocities below nominal transport velocity. Circulation and substantially uniform distribution of solids throughout the riser is achieved due to a staged climbing of solids. Both solids and gases follow multistage CSTR flow regime and a controllable solids content of the reactor can be set up to very high values, free from slugs and large distribution fluctuations, in the form of a plurality of stable beds making it specially suitable for gasification and hazardous waste incineration.
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