Nitric oxide reductions in a multi-zone reheat furnace

Journal Article · Fri Apr 01 04:00:00 EST 1994 · Iron and Steel Engineer; (United States)

OSTI ID:7203789

Harder, R F ^[1]

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1. George Fox Coll., Newberg, OR (United States)

A reduced excess air combustion control technique was developed for an existing 3-zone reheat furnace that would reduce NO[sub x] emissions to conform with regulatory air quality requirements. The results indicate that reduced excess air combustion controls can be utilized for obtaining NO[sub x] reductions in a multi-zone steel reheat furnace. This study provides support for considering this control strategy as a possible first step toward reheat furnace NO[sub x] control. For new furnace installations, low NO[sub x] burners combined with other technologies provide the greatest benefit. However, for existing furnaces, a control system retrofit may be the most cost-effective short range option. Regarding actual NO[sub x] reduction costs after installation and testing were complete, this control methodology cost approximately $8,500/ton NO[sub x] reduction.

• OSTI ID: 7203789
• Journal Information: Iron and Steel Engineer; (United States), Journal Name: Iron and Steel Engineer; (United States) Vol. 71:4; ISSN 0021-1559; ISSN IRSEA5
• Country of Publication: United States
• Language: English

Related Subjects

03 NATURAL GAS
030700 -- Natural Gas-- Waste Management
034000* -- Natural Gas-- Combustion
AIR POLLUTION ABATEMENT
CHALCOGENIDES
COMBUSTION CONTROL
CONTROL
CONTROL EQUIPMENT
ENERGY SOURCES
EQUIPMENT
FLUIDS
FOSSIL FUELS
FUEL GAS
FUEL-AIR RATIO
FUELS
FURNACES
GAS FUELS
GAS FURNACES
GASES
NATURAL GAS
NITRIC OXIDE
NITROGEN COMPOUNDS
NITROGEN DIOXIDE
NITROGEN OXIDES
OXIDES
OXYGEN COMPOUNDS
POLLUTION ABATEMENT