SYSTEMS AND METHODS FOR COMMINUTING AND RECIRCULATING COAL COMBUSTION PRODUCTS
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United States of America Patent
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Issued Date -
May 23, 2013
app pub date -
Jan 14, 2013
filing date -
Sep 24, 2009
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Abandoned
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Abstract
A method and system for reducing the un-burned carbon content in coal combustion products are disclosed. A coal combustion product is separated into a coarse particle fraction and a fine particle fraction, and the coarse particles are comminuted by milling, grinding or the like. Additives may be added of the coarse particles prior to comminution. The comminuted particles are then co-combusted with coal to burn at least a portion of the un-burned carbon contained in the original coal combustion product.
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