Methods for treating a flue gas stream using a wet scrubber unit
AssigneeADA Carbon Solutions, LLC
InventorsMowen Li, Robert B. Huston, Joseph M. Wong
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Abstract
Sorbent compositions, comprising a solid sorbent, a dispersive agent, and optionally a capture agent for enhanced wet-Flue Gas Desulfurization (wFGD) or wet scrubber unit function in a flue gas pollutant control stream is disclosed. The sorbent composition may include a sorbent with a dispersive agent, designed to enhance the dispersion of the sorbent in an aqueous sorption liquid of a wet scrubber unit, and therefore may be especially useful in EGU or industrial boiler flue gas streams that include one or more wet scrubber units. The sorbent composition may also include a capture agent useful in sequestering mercury and bromine, as well as other contaminants that may include arsenic, selenium and nitrates.
Claims29
A method for removing contaminants from a flue gas stream, the method comprising the steps of:
- burning a combustible material, the burning creating a flue gas stream containing contaminants;
- contacting the flue gas stream with an aqueous sorption liquid contained in a wet scrubber unit;
- and
- contacting the flue gas stream with a particulate sorbent composition to sequester the contaminants from the flue gas stream,
- wherein the particulate sorbent composition comprises a solid sorbent and a dispersive agent.
Dependencies are inferred from the claim text.