Process for firing a furnace

Details Process for firing a furnace Process for firing a furnace

Filed on

1982-01-05

Date issued

1983-10-11

Examiner

O'Connor, Daniel J.

Patent Class

Combustion

SubClass

Process of combustion or burner operation

SubSubClass

Flame shaping, or distributing components in combustion zone

Other Related Categories

126112, 431 12, F23M 304

Type

Patent

Status

active

Patent number

044089821

Description

ABSTRACT:
A method for minimizing the amount of nitrogen oxide pollutants produced in a process for firing a furnace using oxygen or an oxygen-enriched gas as the oxidant, in which furnace gases are aspirated into the oxidant jet prior to combustion and in which the furnace is operated using alternating low firing rate and high firing rate periods, by delaying the injection of oxidant at the high rate at the start of the high firing rate period.

REFERENCES:
patent: 3730668 (1973-05-01), Iida et al.
patent: 3880571 (1975-04-01), Koppang et al.
patent: 4021188 (1977-05-01), Yamagishi et al.
patent: 4054407 (1977-10-01), Carubba et al.
patent: 4060376 (1977-11-01), Peredi
patent: 4289474 (1981-09-01), Honda et al.
patent: 4308810 (1982-01-01), Taylor
patent: 4343606 (1982-08-01), Blair et al.
patent: 4364724 (1982-12-01), Alpkuist
patent: 4375950 (1983-03-01), Durley
patent: 4378205 (1983-03-01), Anderson

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