Multi-stage combustion method for inhibiting formation of nitrog

Details Multi-stage combustion method for inhibiting formation of nitrog Multi-stage combustion method for inhibiting formation of nitrog

1984-04-18

1985-01-29

Dolinar, Andrew M.

Combustion

Process of combustion or burner operation

Flame shaping, or distributing components in combustion zone

431174, F23M 302

Patent

active

044963068

ABSTRACT:
A method comprising injecting a primary fuel and air into a furnace to burn the fuel and form a first-stage combustion zone, the air being supplied at a rate in excess of the stoichiometric rate required for the combustion of the fuel, and injecting a secondary fuel into the furnace around or downstream of the first-stage zone at a rate approximately equal to the stoichiometric rate required for the consumption of the excess oxygen resulting from the combustion in the first-stage zone the fuel being diluted with the surrounding combustion gas and to form a second-stage combustion zone around or downstream of the first-stage zone.

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