Circulating fluidized bed boiler with improved nitrogen oxide re

Details Circulating fluidized bed boiler with improved nitrogen oxide re Circulating fluidized bed boiler with improved nitrogen oxide re

1999-02-16

2000-05-30

Ferensic, Denise L.

Liquid heaters and vaporizers

Miscellaneous

110245, 110345, 422172, F22B 100

Patent

active

060679433

ABSTRACT:
The circulating fluidized bed boiler comprises a combustion hearth and a separator cyclone interconnected by a duct which extends along a longitudinal axis and which channels a flow of particles and gas containing nitrogen oxides. It also includes means for injecting into the flow a reagent for reducing nitrogen oxides. Said means comprises at least a first injection tube disposed in a setback of the top portion of the combustion hearth which extends over the duct so as to inject the reagent along the longitudinal axis of the duct in the same direction as the flow.

REFERENCES:
patent: 5103773 (1992-04-01), Andersson et al.
patent: 5315941 (1994-05-01), Vetterick et al.
patent: 5342592 (1994-08-01), Peter-Hoblyn et al.
patent: 5465690 (1995-11-01), Viel Lamare et al.

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