Method of reducing the content of nitrogen oxides in multiple be

Details Method of reducing the content of nitrogen oxides in multiple be Method of reducing the content of nitrogen oxides in multiple be

1987-07-08

1988-11-08

Favors, Edward G.

Furnaces

Process

Treating fuel constituent or combustion product

110342, 423235, F23J 1100, F23J 1500

Patent

active

047827718

ABSTRACT:
Method of supplying ammonia gas to boilers having at least two fluidized beds one above the other for reducing the content of nitrogen oxides in the flue gas wherein the ammonia gas is intermixed with secondary air or tertiary air before said air intermixed with flue gas from the lower fluidized bed is supplied to the upper fluidized bed or the upper fluidized beds, respectively, for fluidization equally distributed over the area of the bed or beds, respectively.

REFERENCES:
patent: 4181705 (1980-01-01), Gumerman
patent: 4303023 (1981-12-01), Perkins et al.
patent: 4519324 (1985-05-01), Toth
patent: 4616576 (1986-10-01), Engstrom et al.
patent: 4648331 (1987-03-01), Thelen

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