An investigation to define the physical/chemical constraints which limit NO sub x emission reduction achievable by reburning

An investigation to define the physical/chemical constraints which limit NO sub x emission reduction achievable by reburning [electronic resource]

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Reburning is a NOₓ control technology which uses fuel to reduce NO. Thus, the main heat release zone can be operated normally to achieve optimum combustion conditions without regard for NOₓ control. Objectives of this program are to define the physical and/or chemical constraints which prevent reali...

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Bibliographic Details
Online Access: Online Access
Corporate Authors: Energy and Environmental Research Corporation (Researcher), National Energy Technology Laboratory (U.S.) (Researcher)
Format: Government Document Electronic eBook
Language:English
Published: Morgantown, W.Va. : Oak Ridge, Tenn. : National Energy Technology Laboratory (U.S.) ; distributed by the Office of Scientific and Technical Information, U.S. Dept. of Energy, 1987.
Subjects:
Natural Gas.
Combustion.
Staged Combustion.
Thermochemical Processes.
Document Types.
Cyanides.
Control.
Reducing Agents.
Gas Fuels.
Hydrogen Peroxide.
Peroxides.
Wastes.
Oxygen Compounds.
Fuel Gas.
Stoichiometry.
Carbon Compounds.
Radicals.
Fuels.
Carbon Dioxide.
Pollution Control.
Fluids.
Elements.
Reaction Intermediates.
Gaseous Wastes.
Hydrogen.
Flue Gas.
Nitric Oxide.
Carbynes.
Air Pollution Control.
Temperature Effects.
Energy Sources.
Gases.
Nonmetals.
Progress Report.
Inorganic Acids.
Efficiency.
Boilers.
Hydrocyanic Acid.
Fossil Fuels.
Nitrogen Oxides.
Carbon Oxides.
Chemical Reactions.
Nitrogen Compounds.
Oxides.
Reduction.
Oxidation.
Hydrogen Compounds.
Combustion Products.
Chalcogenides.
Coal, Lignite, And Peat.
Fossil-fueled Power Plants.
Description
Summary:Reburning is a NOₓ control technology which uses fuel to reduce NO. Thus, the main heat release zone can be operated normally to achieve optimum combustion conditions without regard for NOₓ control. Objectives of this program are to define the physical and/or chemical constraints which prevent realization of Point 5 (85% NOₓ reduction) with reburning, to use this information to identify and test improved configurations for reburning as an NOₓ control technique on coal-fired boilers, and to test various methods which could be used in practice to reduce NOₓ during the burnout step of the reburning process. The program will be performed at two experimental scales. Bench scale studies will be carried out in a 100 × 10³ Btu/hr tunnel furnace to evaluate the importance of chemical and physical constraints in the absence of mixing limitations. A 10 × 10⁶ Btu/hr pilot scale facility will subsequently be used to investigate the impacts of finite rate mixing and determine methods of minimizing them. A series of experiments will be conducted to verify the various concepts and demonstrate the optimum configuration for an advanced reburning process to achieve 85% NOₓ reduction at a cost lower than SCR. 24 figs.
Item Description:Published through SciTech Connect.
10/01/1987.
"doe/pc/91025-t11"
"DE90012405"
Chen, S. L.; McCarthy, J. M.; Moller, E. C.
DOE/FE.
Physical Description:Pages: (41 p) : digital, PDF file.

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