Raymond L Hatch

US Patent:

44472030, May 8, 1984

Filed:

Aug 22, 1983

Appl. No.:

6/525421

Inventors:

William J. Hampton - Taft CA
Glenn R. James - Taft CA
Raymond L. Hatch - Taft CA

International Classification:

F23J 700

US Classification:

431 3

Abstract:

A method for improving the flame combustion of carbonaceous fuels. The method enables the reduction of oxides of nitrogen generated by the flame combustion, and enables an improvement in boiler efficiency. An ionic sodium or potassium compound, or a combination of them, is supplied with the combustible mixture of fuel and air so as intimately and uniformly to be present where and when the flame exists. Preferably the compound is supplied in an aqueous solution, and can be intimately mixed with the fuel, or with the atomizing air or steam, or with the combustion air. The process is useful with both single-stage and staged (multiple-staged) combustion systems.