Evaluation of gas-reburning and low NO sub x burners on a wall fired boiler

Technical Report · Mon Jul 15 04:00:00 EDT 1991

OSTI ID:5289923

The primary objective of this Clean Coal Technology (CCT) project is to evaluate the use of Gas Reburning and Low NO{sub x} Burners (GR- LNB) for NO{sub x} emission control from a wall fired boiler. With GR, about 80--85 percent of the coal fuel is fired in the main combustion zone. The balance of the fuel is added downstream as natural gas to create a slightly fuel rich environment in which NO{sub x} is converted to N{sub 2}. The combustion process is completed by over-fire air addition. SO{sub x} emissions are reduced to the extent that natural gas replaces sulfur-containing coal. The level of NO{sub x} reduction achievable with 15--20% natural gas is on the order of 50--60%. Technical objectives are to: demonstrate the full effectiveness of GR-LNB for NO{sub x} emission control -- the performance of the separate technologies and of the integrated GR-LNB technology; demonstrate the compatibility of GR-LNB with existing wall fired boilers; demonstrate the additional reductions in SO{sub 2}, particulate and CO{sub 2} achievable with GR-LNB; demonstrate the synergism of GR-LNB with sorbent injection for SO{sub 2} control if a sorbent injection system is installed outside the scope of this project; develop a data base which can be used to establish the commercial viability of GR-LNB to meet existing and projected emission control regulations; and transfer the project results to industry to ensure that GR-LNB is a recognized cost effective competitor for utility boiler emission control.

• Research Organization: Energy and Environmental Research Corp., Irvine, CA (United States)
• Sponsoring Organization: DOE; USDOE, Washington, DC (United States)
• DOE Contract Number: FC22-91PC90547
• OSTI ID: 5289923
• Report Number(s): DOE/PC/90547-T3; ON: DE91018323
• Country of Publication: United States
• Language: English

Related Subjects

01 COAL, LIGNITE, AND PEAT
014000 -- Coal
Lignite
& Peat-- Combustion
20 FOSSIL-FUELED POWER PLANTS
200104* -- Fossil-Fueled Power Plants-- Components
200202 -- Fossil-Fueled Power Plants-- Waste Management-- Noxious Gas & Particulate Emissions
AIR POLLUTION CONTROL
BOILERS
CHALCOGENIDES
CONTROL
DESIGN
DOCUMENT TYPES
MANAGEMENT
NITROGEN COMPOUNDS
NITROGEN OXIDES
OXIDES
OXYGEN COMPOUNDS
POLLUTION CONTROL
PROGRAM MANAGEMENT
PROGRESS REPORT
SULFUR COMPOUNDS
SULFUR DIOXIDE
SULFUR OXIDES
TESTING