Apparatus and process for carbon removal from fly ash

Details Apparatus and process for carbon removal from fly ash Apparatus and process for carbon removal from fly ash

1995-03-20

1999-02-09

Bennett, Henry

Furnaces

Refuse incinerator

With means for advancing or handling refuse or residue

110259, 110165R, 110165A, F23G 500

Patent

active

058680845

ABSTRACT:
A new apparatus and process for efficient removal of carbon from fly ash has been developed, whereby carbon removal occurs through oxidation as combustion. The ignition of the carbon is accomplished by bulk heating and molecular impingement of a suspended layer of fly ash by a heated oxidizing gas strewn, and the desired level of carbon burnout is accomplished by maintenance of combustion conditions.

REFERENCES:
patent: 4663507 (1987-05-01), Trerice
patent: 4705409 (1987-11-01), Trerice
patent: 5160539 (1992-11-01), Cochran
patent: 5390611 (1995-02-01), John
J,W. Cochran & T.J. Boyd, "Beneficiation of Fly Ash By Carbon Burnout", published in abstract form as EPRI Technical Brief TC 3497-01 (Dec. 1992).
D.R. Whitlock, "Electrostatic Separation of Unburned Carbon From Fly Ash", (date unknown).

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