Formation of N/sub 2/O in laminar, premixed, fuel-rich flames

Journal Article · Thu Oct 01 04:00:00 EDT 1987 · Combust. Flame; (United States)

DOI:https://doi.org/10.1016/0010-2180(87)90163-5· OSTI ID:5110308

Roby, R J; Bowman, C T

Stack gases from power plants burning fossil fuels contain moderate levels of N/sub 2/O, and N/sub 2/O is known to play a role in the chemistry of the upper atmosphere. Studies in laboratory furnaces indicate that in unstaged coal and oil flames, approximately 1 mole of N/sub 2/O is produced for every 3 moles of NO. Staged combustion, which utilizes a fuel-rich combustion zone followed by injection of excess air, reduces both NO and N/sub 2/O emissions. Nitrous oxide also has been found to be a product in the premixed combustion of fuel-lean CO-air mixtures and stoichiometric CH/sub 4/-air mixtures seeded with NH/sub 3/. In order to obtain information on the N/sub 2/O reaction mechanism for conditions simulating the rich zone of staged combustion or reburning, the authors investigated the formation and removal of N/sub 2/O in laminar, atmospheric-pressure, premixed, fuel-rich flames.

• Research Organization: Dept. of Mechanical Engineering, Virginia Polytechnic Institute and State Univ., Blacksburg, VA (US)
• OSTI ID: 5110308
• Journal Information: Combust. Flame; (United States), Journal Name: Combust. Flame; (United States) Vol. 70:1; ISSN CBFMA
• Country of Publication: United States
• Language: English

Related Subjects

01 COAL, LIGNITE, AND PEAT
010800* -- Coal
Lignite
& Peat-- Waste Management
02 PETROLEUM
025000 -- Petroleum-- Combustion
20 FOSSIL-FUELED POWER PLANTS
200202 -- Fossil-Fueled Power Plants-- Waste Management-- Noxious Gas & Particulate Emissions
AIR
AIR POLLUTION ABATEMENT
AIR POLLUTION CONTROL
ALKANES
AMMONIA
ATMOSPHERIC CHEMISTRY
CARBONACEOUS MATERIALS
CHALCOGENIDES
CHEMICAL REACTION KINETICS
CHEMICAL REACTIONS
CHEMISTRY
COAL
COMBUSTION
COMBUSTION CONTROL
COMBUSTION KINETICS
CONTROL
EMISSION
ENERGY SOURCES
FLAMES
FLUE GAS
FLUID FLOW
FLUIDS
FOSSIL FUELS
FOSSIL-FUEL POWER PLANTS
FUEL-AIR RATIO
FUELS
FURNACES
GASEOUS WASTES
GASES
HYDRIDES
HYDROCARBONS
HYDROGEN COMPOUNDS
KINETICS
LAMINAR FLOW
MATERIALS
METHANE
MIXING
NITROGEN COMPOUNDS
NITROGEN HYDRIDES
NITROGEN OXIDES
NITROUS OXIDE
ORGANIC COMPOUNDS
OXIDATION
OXIDES
OXYGEN COMPOUNDS
PETROLEUM
POLLUTION ABATEMENT
POLLUTION CONTROL
POWER PLANTS
REACTION KINETICS
STAGED COMBUSTION
THERMAL POWER PLANTS
THERMOCHEMICAL PROCESSES
WASTES