Pollutant-free low temperature combustion process having carbona

Details Pollutant-free low temperature combustion process having carbona Pollutant-free low temperature combustion process having carbona

1978-10-02

1980-12-30

Ross, Herbert F.

Stoves and furnaces

Heaters

Chemical

122 1R, 431 11, F23C 700

Patent

active

042417228

ABSTRACT:
A continuous process for the combustion of carbonaceous fuels under conditions such that oxides of nitrogen are not formed and oxides of sulfur and particles of ash are effectively prevented from contaminating the gaseous products released to the atmosphere. Fuel is charged as a slurry in alkaline aqueous solution and contacted with combustion air so that the catalytic properties of both water and alkali operate to permit rapid and complete combustion at unusually low temperatures. Useful heat is extracted from the heated mixture. At the low combustion temperatures, sulfur in the fuel oxidizes to the trioxide which dissolves completely in the alkaline liquid phase which also retains particles of ash and unburned fuel.

REFERENCES:
patent: 3159145 (1964-12-01), Strohmeyer
patent: 3563226 (1971-02-01), Rockerfeller
patent: 3818869 (1974-06-01), Blaskowski
patent: 4051888 (1977-10-01), Yamada

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