Apparatus and process for control of nitric oxide emissions from

Details Apparatus and process for control of nitric oxide emissions from Apparatus and process for control of nitric oxide emissions from

1992-02-03

1993-01-26

Favors, Edward G.

Furnaces

Process

Treating fuel constituent or combustion product

110212, 110213, 110214, 422182, F23D 1100, F23D 1500

Patent

active

051814757

ABSTRACT:
An apparatus and method for reducing nitrogen oxide emissions from the products of combustion is provided in which a vortex generator introduces natural gas, or other fluid fuel into the upper portion of a combustion device. The fuel introduced forms vortices, such as vortex rings, and the fuel reacts with the nitrogen oxide in the combustion products to form ammonia-like compounds, hydrogen cyanide and similar compounds, and nitrogen. The ammonia and cyanide-like fragments react with additional amounts of nitrogen oxide in the combustion products to form nitrogen gas, water vapor and carbon dioxide. The vortex rings can be controlled and will maintain their integrity longer than puffs or simple jets of fuel.

REFERENCES:
patent: 3567399 (1971-03-01), Altmann et al.
patent: 4542703 (1985-09-01), Przewalski
patent: 4597342 (1986-07-01), Green
patent: 4779545 (1988-10-01), Breen et al.
patent: 4790743 (1988-12-01), Leikert et al.
patent: 4941415 (1990-07-01), Pope et al.
European Patent Application No. 0 280 568 to Masai Feb. 1987.

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