Pollutant control techniques for package boilers: hardware modifications and alternate fuels. Final report Jun 74-Mar 78

Technical Report · Wed Feb 01 04:00:00 EST 1984

OSTI ID:5179422

Cichanowicz, J E; Heap, M P; McMillan, R E; Zoldak, F D

The report gives results of investigations of four ways to control nitrogen oxide (NOx) emissions from package boilers (both field operating boilers and boiler simulators): (1) variations in combustor operating procedure; (2) combustion modification (flue gas recirculation and staged combustion); (3) use of an alternate fuel, methanol; and (4) burner design optimization. Comparative tests were conducted in a firetube boiler. Reduced excess-air firing was the only NOx control that both reduced emissions and increased thermal efficiency. Flue gas recirculation and staged combustion had negligible effects on boiler operating efficiency. Conversion to methanol results in a considerable decrease in thermal efficiency because of the water vapor's increasing the enthalpy of the flue gas.

• Research Organization: Energy and Environmental Research Corp., Irvine, CA (USA)
• OSTI ID: 5179422
• Report Number(s): PB-84-153212
• Country of Publication: United States
• Language: English

Related Subjects

42 ENGINEERING
421000* -- Engineering-- Combustion Systems
AIR POLLUTION CONTROL
ALCOHOL FUELS
BOILERS
BURNERS
CHALCOGENIDES
COMBUSTION PRODUCTS
CONTROL
DESIGN
EFFICIENCY
FUEL SUBSTITUTION
FUELS
INDUSTRIAL WASTES
METHANOL FUELS
MODIFICATIONS
NITROGEN COMPOUNDS
NITROGEN OXIDES
OPTIMIZATION
OXIDES
OXYGEN COMPOUNDS
POLLUTION CONTROL
SYNTHETIC FUELS
THERMAL EFFICIENCY
WASTES