Furnace apparatus and method

Details Furnace apparatus and method Furnace apparatus and method

1975-01-02

1976-09-28

Favors, Edward G.

Combustion

Process of combustion or burner operation

Flame shaping, or distributing components in combustion zone

60 3902, 431115, 431351, F23L 900

Patent

active

039828794

ABSTRACT:
Carbonaceous fuel is thermally combusted with an amount of air substantially less than that needed for complete combustion to carbon dioxide and water of all the combustible components in the fuel to produce a gaseous first effluent containing a substantial proportion of carbon monoxide but little or no nitrogen oxides. The first effluent is mixed with additional air and at least a portion of the resulting mixture is passed into the presence of a solid oxidation catalyst for combustion at a temperature above the instantaneous auto-ignition temperature of the mixture but below nitrogen-oxide-forming temperatures. Heat is withdrawn from the initial thermal combustion stage and from the gases downstream of the catalyst for the purpose for which the furnace is being operated.

REFERENCES:
patent: 3837788 (1974-09-01), Craig et al.
patent: 3848412 (1974-11-01), Michels et al.
patent: 3870455 (1975-03-01), Hindin

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