Air pollution control

Details Air pollution control Air pollution control

2005-04-29

2008-08-05

Vanoy, Timothy C (Department: 1793)

Compositions

Compositions containing a single chemical reactant or plural...

C423S210000

Reexamination Certificate

active

07407602

ABSTRACT:
In a method of controlling air pollution, a combustion gas is passed through a slurry of an alkaline-earth metal sulfide and a redox buffer (e.g., a phosphate), preferably in combination with an alkaline-earth metal carbonate and/or hydroxide. A composition for removing a heavy metal from a combustion gas is also provided, as an aerosolized, aqueous dispersion or slurry of an alkaline-earth metal sulfide and a buffering agent. A solid residue of the air pollution control process is also described.

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Licata et al; Technical Publication, Multi-Pollutant Emissions Control & Strategies, “Coal-Fired Power Plant Mercury Control by Injecting Sodium Tetrasulfide”; © Babcock Power Environmental Inc. 2003, 11 Sheets.

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