Magnetic adsorbents, methods for manufacturing a magnetic adsorbent, and methods of removal of contaminants from fluid streams
AssigneeCarbonxt, Inc.
InventorsDavid W. Mazyck, Regina Rodriguez, Christine Valcarce
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Abstract
A magnetic adsorbent, including an admixture of an adsorbent and a magnetic material. A system for removing mercury from a fluid stream, the system including, a magnetic adsorbent injection unit for injecting an admixture of powdered activated carbon and magnetic material into the fluid stream; and a particulate removal unit. Also included are methods for removing mercury from a fluid stream and methods for producing a magnetic sorbent.
Claims7
A magnetic adsorbent for the capture of mercury from flue gas of coal combustion devices, said magnetic absorbent, comprising:
- an activated carbon adsorbent;
- an iron oxide forming a magnetic portion wherein magnetic activity of the magnetic portion is not blocked by the activated carbon, said magnetic portion being implanted on a surface of the activated carbon;
- an additive including a photocatalyst and a halogen;
- a binder;
- a first additional additive including one or more of the group consisting of a magnetic sorbent, magnetic particles, and a magnetic catalyst;
- wherein said iron oxide and said additive are implanted onto a surface of the adsorbent;
- wherein said halogen enhances oxidation of the mercury in a contaminated stream of the flue gas when said magnetic adsorbent is placed into contact with said contaminated stream;
- and
- wherein said iron oxide oxidizes mercury from elemental mercury (Hg) to Mercury Oxide (Hg II).
A magnetic adsorbent for the capture of mercury from flue gas of coal combustion devices, said magnetic absorbent, comprising:
- an activated carbon adsorbent;
- an iron oxide forming a magnetic portion, said magnetic portion being implanted on a
- surface of the activated carbon;
- an additive including a photocatalyst and a halogen;
- a binder;
- an additional additive including one or more of the group consisting of a magnetic sorbent, magnetic particles, and a magnetic catalyst;
- wherein said iron oxide and said additive are implanted onto a surface of the adsorbent;
- and
- wherein said iron oxide oxidizes mercury from elemental mercury (Hg) to Mercury Oxide (Hg II).
Dependencies are inferred from the claim text.