Low NOx burner operations with natural gas cofiring

Details Low NOx burner operations with natural gas cofiring Low NOx burner operations with natural gas cofiring

1989-06-26

1990-10-02

Favors, Edward G.

Furnaces

Process

Burning pulverized fuel

110262, 110264, 431284, F23D 100

Patent

active

049600591

ABSTRACT:
A method is disclosed which overcomes the problems which tend to occur in the retrofitting of coal burners for low-NOx emission. A gaseous or volatile liquid fuel is introduced into the primary or secondary air with the amount ranging from 2% to 25% of the boiler energy input as necessary to achieve the necessary NOx reduction and improved load following without operational problems. Optionally gas can be injected through gas burners in an amount ranging from 2% to 50% of the boiler energy input.

REFERENCES:
patent: 4597342 (1986-07-01), Green et al.
patent: 4790743 (1988-12-01), Leikert et al.
patent: 4807541 (1989-02-01), Masai et al.

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