Acid-impregnated activated carbon and methods of forming and using the same
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United States of America Patent
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Jun 12, 2012
Grant Date -
Feb 28, 2008
app pub date -
Aug 23, 2007
filing date -
Aug 23, 2006
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Abstract
An acid-impregnated activated carbon matrix is formed from a carbonaceous material by the addition of a mineral acid, and may be used to chemisorb ammonia from a gas stream. The ammonia reacts with the acid to form a fertilizer salt. The spent matrix may be used as a fertilizer, or the fertilizer salt may be elutriated from the matrix.
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