Methods for treating a flue gas stream using a wet scrubber unit
AssigneeADA Carbon Solutions, LLC
InventorsMowen Li, Robert B. Huston, Joseph M. Wong
Life of this patent
Estimating the term…
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.
Claims24
A method of manufacture of a sorbent composition comprising:
- providing a carbonaceous solid sorbent comprising activated carbon;
- contacting the carbonaceous solid sorbent with one or more dispersive agents;
- and
- contacting the carbonaceous solid sorbent with an alkaline compound.
A method of manufacture of a sorbent composition comprising:
- providing a carbonaceous solid sorbent comprising activated carbon having a median particle size of not greater than about 100 micron and a sum of micropore volume plus mesopore volume of at least about 0.20 cc/g;
- contacting the carbonaceous solid sorbent with one or more dispersive agents;
- and
- contacting the carbonaceous solid sorbent with an alkaline compound.
A method of manufacture of a sorbent composition comprising:
- providing a carbonaceous solid sorbent comprising activated carbon;
- contacting the carbonaceous solid sorbent with one or more dispersive agents and with one or more capture agents;
- and
- contacting the carbonaceous solid sorbent with an alkaline compound,
- wherein the one or more dispersive agents are selected from the group consisting of dispersants, deflocculants, coupling agents, and combinations thereof, and
- wherein the one or more capture agents includes a peroxide.
Dependencies are inferred from the claim text.