Method of recovering fuel from coal ash

Details Method of recovering fuel from coal ash Method of recovering fuel from coal ash

1984-09-26

1987-04-14

Dixon, Jr., William R.

Fuel and related compositions

Liquid fuels

Aluminum or heavy metal, other than lead, containing

44 77, 44 1A, 44 1R, 106DIG1, 264DIG49, C10L 132

Patent

active

046575618

ABSTRACT:
A method of recovering fuel from coal ash containing non-combusted carbon in particulate form discharged from a pulverized coal fired boiler, a fluidized bed boiler or a coal gasification furnace together with exhaust gases. In this method, water and a binder and surfactant, if necessary, are added to the ash collected by the dust collecting device, and the mixture is agitated to form coarse particles of high carbon content. Then fine particles of high ash content are separated from the coarse particles, allowing the coarse particles separated from the fine particles to be dehydrated while tailing ash is turned white in color and the ash is put to use.

REFERENCES:
patent: 2576565 (1951-11-01), Brown
patent: 4261699 (1981-04-01), Sun et al.
patent: 4309190 (1982-01-01), Baron et al.
patent: 4332593 (1982-06-01), Burgess et al.
Littlejohn, Charles E., The Utilization of Fly Ash, Bulletin No. 6, 1954, pp. 1, and 5-42.

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