Oil burner for NO/sub x/ emission control

Patent · Tue May 17 04:00:00 EDT 1977

OSTI ID:7218644

Anson, D

A method and apparatus for producing heat from a liquid fuel in an oil burner with a low NO/sub x/-gas effluent are described. A small relatively higher velocity stream of air is directed concentric about a divergent spray or stream of ignited fuel oil in a primary flame zone in such amount that only a minor portion of the fuel can be combusted in said primary flame zone. The air is directed in such manner as to produce toroidal fluid circulation pattern atomizing the liquid fuel and establishing a stable flame. A small amount of recirculated flue gas (RFG) is immediately thereafter introduced concentrically about said primary flame zone in the general direction of fluid flow. Air is introduced concentrically thereabout in a secondary flame zone in the fluid flow path of said primary flame zone in at least sufficient quantity to burn the remaining combustibles. Oxides of nitrogen in the resultant effluent are suppressed by adjusting the amount of RFG and hence the flame composition and temperature.

• Assignee: Electric Power Research Inst.
• Patent Number(s): US 4023921
• OSTI ID: 7218644
• Country of Publication: United States
• Language: English

Related Subjects

42 ENGINEERING
421000* -- Engineering-- Combustion Systems
500200 -- Environment
Atmospheric-- Chemicals Monitoring & Transport-- (-1989)
54 ENVIRONMENTAL SCIENCES
AIR POLLUTION ABATEMENT
BURNERS
CHALCOGENIDES
CHEMICAL REACTIONS
COMBUSTION
COMBUSTION PRODUCTS
DESIGN
EQUIPMENT
FLUE GAS
FUEL OILS
FUELS
FURNACES
GASEOUS WASTES
NITROGEN COMPOUNDS
NITROGEN OXIDES
OIL FURNACES
OILS
OPERATION
ORGANIC COMPOUNDS
OTHER ORGANIC COMPOUNDS
OXIDATION
OXIDES
OXYGEN COMPOUNDS
PETROLEUM PRODUCTS
POLLUTION ABATEMENT
POLLUTION CONTROL EQUIPMENT
PRODUCTION
RECYCLING
THERMOCHEMICAL PROCESSES
WASTES