Low NOx, high-efficiency multistaged burner: fuel-oil results

Technical Report · Fri May 01 00:00:00 EDT 1987

OSTI ID:6179346

Mulholland, J A; Srivastava, R K

This paper discusses the fuel-oil portion of an evaluation, utilizing a multistaged combustion burner designed for in-furnace NOx control and high combustion efficiency, for high nitrogen-content fuel and waste-incineration application in a 0.6-MW package boiler simulator. A low-NOx precombustion chamber burner was reduced in size by about a factor of two (from 600 to 250 ms first-stage residence time) and coupled with (1) air staging, resulting in a three-stage configuration, and (2) natural gas fuel staging, yielding up to four stoichiometric zones. Natural gas, doped with ammonia to yield a 5.8% fuel nitrogen content, and distillate fuel oil, doped with pyridine to yield a 2% fuel nitrogen content, were used to simulate high nitrogen content fuel/waste mixtures. The multistaged burner reduced NO emissions by 85% from emission levels from a conventional unstaged burner mounted on a commercial package boiler. A minimum NO emission level of 110 ppm was achieved in the fuel-oil tests, from a level of 765 ppm for conventional firing.

• Research Organization: Acurex Corp., Research Triangle Park, NC (USA)
• OSTI ID: 6179346
• Report Number(s): PB-87-196788/XAB
• Country of Publication: United States
• Language: English

Related Subjects

42 ENGINEERING
54 ENVIRONMENTAL SCIENCES
BURNERS
AIR POLLUTION ABATEMENT
FUEL OILS
NITROGEN OXIDES
CONTROL
BOILERS
COMBUSTION PRODUCTS
DESIGN
PERFORMANCE
STAGED COMBUSTION
CHALCOGENIDES
CHEMICAL REACTIONS
COMBUSTION
FUELS
LIQUID FUELS
NITROGEN COMPOUNDS
OILS
ORGANIC COMPOUNDS
OTHER ORGANIC COMPOUNDS
OXIDATION
OXIDES
OXYGEN COMPOUNDS
PETROLEUM PRODUCTS
POLLUTION ABATEMENT
THERMOCHEMICAL PROCESSES
421000* - Engineering- Combustion Systems
500200 - Environment
Atmospheric- Chemicals Monitoring & Transport- (-1989)