Patent ID: 6945179

Claim:
An apparatus for reducing an amount of a substance affixed to fly ash, the apparatus comprising: a source of fly ash, at least a portion of the fly ash comprising particulates having a substance affixed to the particulates; a heating chamber including a treatment bed comprising a media having openings; a fly ash supply conduit in communication with the heating chamber and the source of fly ash, the fly ash supply conduit transferring fly ash from the source of fly ash to the treatment bed of the heating chamber; a source of heated air; an air supply conduit in communication with the source of heated air and the heating chamber, the air supply conduit providing a flow of heated air to the treatment bed of the heating chamber for contacting the fly ash on the treatment bed with the flow of heated air; a heated air conduit in communication with the heating chamber for transferring the flow of heated air from the heating chamber; a heat recovery unit for recovering heat from the flow of heated air passing through the heated air conduit; and an ash removal conduit in communication with the heating chamber for transferring heated fly ash from the heating chamber.