Ammonia removal from fly ash

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 6755901
SERIAL NO

09807643

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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A method and apparatus for the application of beat to remove ammonia compounds from fly ask, thereby making the fly ash a marketable product is disclosed. The method includes the steps of providing an amount of fly ash wherein at least a portion of the amount of fly ash comprises particulates having ammonia compounds affixed to the particulates, and exposing the fly ash to flowing air having a temperature of at least 1,500.degree. F. (815 .degree. C.) such that the fly ash is maintained in the flowing air until the fly ash reaches a temperature of at last 900.degree. F. (482 .degree. C.). The apparatus (8,9) includes a source of fly ash (10) comprising particulates having ammonia compounds affixed to at least some of the fly ash particulates, a beating chamber (17) including a treatment bed comprising a floor (20) having openings a fly ash supply conduit (16) in communication with the heating chamber (17) and the source of fly ash (10) for transferring fly ash from the source of fly ash to the treatment bed of the heating chamber, a source of heated air (45), an air supply conduit (55) in communication with the source of heated of heated air (45) and the heating chamber (17) for providing a flow of heated air to the treatment bed of the beating chamber for contacting the fly ash on the treatment bed with the flow of air, a heated air conduit (27) in communication with the beating chamber (17) for transferring the flow of heated air form the heating chamber, and an ash removal conduit (31) in communication with the heating chamber (17) for transferring heated fly ash from the heating chamber.

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Patent Owner(s)

Patent OwnerAddress
WISCONSIN ELECTRIC POWER COMPANY231 W MICHIGAN AVENUE MILWAUKEE WI 53201

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Fisher, Bryan C San Antonio, TX 4 41
Ramme, Bruce W Okauchee, WI 13 339

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