Method of decreasing ash fouling

Details Method of decreasing ash fouling Method of decreasing ash fouling

1983-01-24

1987-05-12

Yuen, Henry C.

Furnaces

Process

Burning pulverized fuel

110263, 110265, F23D 100

Patent

active

046640428

ABSTRACT:
A furnace burns coal where the coal is decreased to a fine size to expand the surface of the carbon in the coal to a predetermined amount of free oxygen from air to militate against reduction of alkali compounds in the coal. Further, the temperature of the combustion is controlled to a predetermined maximum by recirculation of cooled flue gas to complete the control over the alkali compounds in the coal and prevent the formation of tube-fouling silicates.

REFERENCES:
patent: 2259967 (1941-10-01), Vogel-Jorgensen
patent: 2867182 (1959-01-01), Crites
patent: 3229651 (1966-01-01), Wasp
patent: 4150631 (1979-04-01), Frey et al.
patent: 4173189 (1976-11-01), Cooper
patent: 4223615 (1980-09-01), Breen et al.
patent: 4246853 (1981-01-01), Mehta
patent: 4294178 (1981-10-01), Bono et al.
patent: 4332207 (1982-06-01), Blaskowski et al.

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