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US 11,975,291 B2Granted
Magnetic adsorbents and methods of their use for removal of contaminants
AssigneeCarbonxt, Inc.
InventorsDavid W. Mazyck, Christine O. Valcarce, Erica Gonzaga, Lindsey Costin
Life of this patent
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Abstract
Provided are sorbents and associated methods and systems for removing mercury from process gases or fluid streams. The sorbents may include activated carbon and pyrite. The sorbents may optionally include one or more additives, such as a halide salt.
Claims15
A sorbent composition comprising activated carbon, a metal sulfide, a halide salt and at least one additive selected from the group consisting of nitric acid, sulfuric acid, hydrochloric acid, bases, and hydroxide salts;
- and
- wherein the metal sulfide is present in said sorbent composition at about 1-30% (by weight) and the halide salt is present in said sorbent composition at about 1-20% (by weight).
A process for removing mercury from a process gas or a fluid stream, the process comprising:
- injecting a sorbent composition into the process gas or fluid stream at certain sorbent injection rate;
- and
- removing mercury from the process gas or the fluid stream,
- wherein said sorbent composition comprises activated carbon, a metal sulfide, a halide salt;
- and a photocatalyst including titanium dioxide.
2 more elements
Dependencies are inferred from the claim text.