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US 2012/0266792 A1Published application
Combustion Stabilization Systems
OwnerMajed Toqaninventor
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Abstract
Systems for stabilizing combustion while minimizing NOx generation by using high-flame-speed additives to stabilize the flame front in combustors operating at relatively low temperatures and/or under oxygen constraints. The system is adapted for use in coal-fired boilers, oil-fired boilers, and gas turbine engines. The methods stabilize the flame front to permit stable combustion under an expanded range of part-load conditions. The system provides substantially complete combustion of coal in coal boilers resulting in ash saleable for use in concrete manufacturing.
Claims50
A combustion stabilization system, comprising the steps of:
- a) substantially optimizing combustion conditions for at least one first coal fuel mixture to substantially minimize NOx emissions;
- b) burning such at least one first coal fuel mixture under such substantially NOx minimizing conditions;
- c) collecting at least one first coal-combustion byproduct generated by such NOx-minimizing burning;
- d) selecting at least one high-flame-speed additive;
- e) preheating such at least one high-flame-speed additive;
- f) adding such at least one high-flame-speed additive to such at least one first coal-combustion byproduct to generate at least one higher-flame-speed fuel mixture;
- g) substantially optimizing combustion conditions for such at least one higher-flame-speed fuel mixture to maximize combustion of such at least one higher-flame-speed fuel mixture;
- h) injecting such at least one higher-flame-speed fuel mixture into at least one combustion chamber having at least one combustion initiator;
- i) igniting such at least one higher-flame-speed fuel mixture with such at least one combustion initiator;
- j) burning such at least one higher-flame-speed fuel mixture under such substantially combustion maximizing conditions;
- and
- k) collecting at least one second coal-combustion byproduct generated by such combustion-maximizing burning.
9 more elements
Dependencies are inferred from the claim text.