Method for controlling elemental mercury emissions
First Claim
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1. A method for controlling total mercury emissions in a flue gas comprising:
- providing a flue gas at a selected temperature and having a quantity of elemental mercury;
treating the flue gas to convert the elemental mercury to oxidized mercury with at least one of;
chlorine and aqueous chlorine species; and
removing the oxidized mercury from the flue gas subsequent to and separately from the chlorine treatment step.
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Abstract
Chlorine and sulfide species are separately introduced to a flue gas passing through a scrubber in order to remove the elemental and oxidized mercury from the gas through the precipitation of mercuric sulfide at near 100% efficiency.
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Citations
18 Claims
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1. A method for controlling total mercury emissions in a flue gas comprising:
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providing a flue gas at a selected temperature and having a quantity of elemental mercury;
treating the flue gas to convert the elemental mercury to oxidized mercury with at least one of;
chlorine and aqueous chlorine species; and
removing the oxidized mercury from the flue gas subsequent to and separately from the chlorine treatment step. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18)
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Specification