Formation and destruction of nitrogen oxides in coal combustion. [Reburning]

Technical Report · Fri Jan 01 00:00:00 EST 1988

DOI:https://doi.org/10.2172/7033191· OSTI ID:7033191

Chen, W Y; Lester, T W; Babcock, L

The study of stoichiometric constraints under equilibrium conditions provides us with the following information related to reburning as a NO reduction technology: (1) The stoichiometry of air to fuel is the most important stoichiometry of air to fuel is the most important stoichiometric variable for reburning; (2) based on equivalent energy production, the comparative reduction efficiencies of the reburning fuels follow the trend: methane > ethane, ammonia > butane > aromatics, coal > CO; (3) the nitrogen in burning coals causes increases in equilibrium NO; (4) equilibrium TFN is not very sensitive in inlet NO concentration; (5) the heat carried by the flue gas in reburning could push the NO reduction toward equilibrium. If so, reburning has a strong correlation with air staging with air preheat. Further experimental verification is required.

• Research Organization: Louisiana State Univ., Baton Rouge, LA (United States)
• Sponsoring Organization: USDOE; USDOE, Washington, DC (United States)
• DOE Contract Number: AC22-88PC88859
• OSTI ID: 7033191
• Report Number(s): DOE/PC/88859-T12; ON: DE92019207
• Country of Publication: United States
• Language: English

Related Subjects

01 COAL, LIGNITE, AND PEAT
37 INORGANIC
ORGANIC
PHYSICAL AND ANALYTICAL CHEMISTRY
COAL
COMBUSTION
STAGED COMBUSTION
NITROGEN OXIDES
DECOMPOSITION
SYNTHESIS
FUEL-AIR RATIO
AMMONIA
AROMATICS
BUTANE
CARBON MONOXIDE
CONSTRAINTS
ETHANE
EXPERIMENTAL DATA
METHANE
NITROGEN
PROGRESS REPORT
QUANTITY RATIO
STOICHIOMETRY
ALKANES
CARBON COMPOUNDS
CARBON OXIDES
CARBONACEOUS MATERIALS
CHALCOGENIDES
CHEMICAL REACTIONS
DATA
DOCUMENT TYPES
ELEMENTS
ENERGY SOURCES
FOSSIL FUELS
FUELS
HYDRIDES
HYDROCARBONS
HYDROGEN COMPOUNDS
INFORMATION
MATERIALS
NITROGEN COMPOUNDS
NITROGEN HYDRIDES
NONMETALS
NUMERICAL DATA
ORGANIC COMPOUNDS
OXIDATION
OXIDES
OXYGEN COMPOUNDS
THERMOCHEMICAL PROCESSES
014000* - Coal
Lignite
& Peat- Combustion
400201 - Chemical & Physicochemical Properties