Staged cascade fluidized bed combustor

Details Staged cascade fluidized bed combustor Staged cascade fluidized bed combustor

1982-10-25

1984-10-16

Favors, Edward G.

Liquid heaters and vaporizers

Miscellaneous

110245, 110263, 110347, 16510416, 422142, F22B 102

Patent

active

044768168

ABSTRACT:
A fluid bed combustor comprising a plurality of fluidized bed stages interconnected by downcomers providing controlled solids transfer from stage to stage. Each stage is formed from a number of heat transfer tubes carried by a multiapertured web which passes fluidizing air to upper stages. The combustor cross section is tapered inwardly from the middle towards the top and bottom ends. Sorbent materials, as well as non-volatile solid fuels, are added to the top stages of the combustor, and volatile solid fuels are added at an intermediate stage.

REFERENCES:
patent: 3288878 (1966-11-01), Hachmuth
patent: 3431892 (1969-03-01), Godel
patent: 3902462 (1975-09-01), Bryers
patent: 4135885 (1979-01-01), Wormser et al.
patent: 4136061 (1979-01-01), Hogan et al.
patent: 4154585 (1979-05-01), Melcher et al.
patent: 4279205 (1981-07-01), Perkins et al.

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