Environmental assessment of utility boiler combustion modification NO/sub x/ controls: Volume 2. Appendices. Final report, March 1977-May 1978

Technical Report · Tue Apr 01 04:00:00 EST 1980

OSTI ID:6568895

Lim, K L; Waterland, L R; Castaldini, C; Chiba, Z; Higginbotham, E B

The report gives results of an evaluation of combustion modification techniques for coal-, oil-, and gas-fired utility boilers, with repect to NOx control reduction effectiveness, operational impact, thermal efficiency impact, capital and annualized operating costs, and effect on emissions of pollutants other than NOx. For gas- and oil-fired boilers, 30 to 60% NOx reductions are achievable with the combined use of staged combustion, flue gas recirculation and low excess air at an annualized cost of $0.50 to $3.00/kW-yr. For retrofit control of existing coal-fired boilers, low NOx burners and/or staged combustion yields a 30 to 60% NOx reduction at an annualized cost of $0.40 to $1.20/kW-yr. For new sources, modified furnace design with low NOx burners and/or overfire air can achieve emission levels of 260 to 170 ng/J (40 to 60% reduction). Detailed emission tests on a 200 MW coal-fired boiler showed that changes in trace specie emissions due to combustion modifications were small compared to the benefit of reduced NOx emissions.

• Research Organization: Acurex Corp., Mountain View, CA (USA). Energy and Environmental Div.
• OSTI ID: 6568895
• Report Number(s): PB-80-212939
• Country of Publication: United States
• Language: English

Related Subjects

42 ENGINEERING
424000* -- Engineering-- Pollution Control Equipment-- (1980-1989)
AIR POLLUTION ABATEMENT
BOILERS
CHALCOGENIDES
CHEMICAL REACTIONS
COMBUSTION
COMBUSTION PRODUCTS
COST
DATA
EFFICIENCY
EMISSION
FLUE GAS
GASEOUS WASTES
INDUSTRIAL PLANTS
INFORMATION
MATHEMATICS
MODIFICATIONS
NITROGEN COMPOUNDS
NITROGEN OXIDES
OXIDATION
OXIDES
OXYGEN COMPOUNDS
POLLUTION ABATEMENT
REGRESSION ANALYSIS
RETROFITTING
STATISTICS
TESTING
THERMAL EFFICIENCY
THERMOCHEMICAL PROCESSES
WASTES