Bromine Addition for the Improved Removal of Mercury from Flue Gas
First Claim
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1. A method of removing a portion of the elemental mercury in a flue gas created during the combustion of a fossil fuel, comprising:
- providing a bromine containing reagent to said flue gas;
promoting the oxidation of elemental mercury with the bromine containing reagent;
creating an oxidized form of mercury from the elemental mercury; and
removing the oxidized mercury from the flue gas.
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Abstract
Bromine-containing compounds, added to the coal, or to the boiler combustion furnace, are used to enhance the oxidation of mercury, thereby enhancing the overall removal of mercury in downstream pollution control devices. The method is applicable to utility power plants equipped with wet FGD systems, as well as those plants equipped with spray dryer absorber FGD systems.
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Citations
16 Claims
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1. A method of removing a portion of the elemental mercury in a flue gas created during the combustion of a fossil fuel, comprising:
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providing a bromine containing reagent to said flue gas; promoting the oxidation of elemental mercury with the bromine containing reagent; creating an oxidized form of mercury from the elemental mercury; and removing the oxidized mercury from the flue gas. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16)
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Specification