Reversed flow fluidized-bed combustion apparatus

Details Reversed flow fluidized-bed combustion apparatus Reversed flow fluidized-bed combustion apparatus

1982-11-30

1984-10-09

Green, Randall L.

Combustion

Fuel disperser installed in furnace

Disperser feeds into permeable mass, e.g., checkerwork, etc.

431 7, 431328, 432 58, 422142, 422145, 422147, 110245, F23D 1900

Patent

active

044758847

ABSTRACT:
The present invention is directed to a fluidized-bed combustion apparatus provided with a U-shaped combustion zone. A cyclone is disposed in the combustion zone for recycling solid particulate material. The combustion zone configuration and the recycling feature provide relatively long residence times and low freeboard heights to maximize combustion of combustible material, reduce nitrogen oxides, and enhance sulfur oxide reduction.

REFERENCES:
patent: 3508506 (1970-04-01), Bishop
patent: 4247518 (1981-01-01), Charlet et al.
patent: 4373454 (1983-02-01), Pitrolo et al.
patent: 4387653 (1983-06-01), Voss
patent: 4419965 (1983-12-01), Garcia-Mallol et al.

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