US 11,911,727 B2
Magnetic adsorbents, methods for manufacturing a magnetic adsorbent, and methods of removal of contaminants from fluid streams
David W. Mazyck, Gainesville, FL (US); Regina Rodriguez, Gainesville, FL (US); and Christine Valcarce, Gainesville, FL (US)
Assigned to Carbonxt, Inc., Gainesville, FL (US)
Filed by Carbonxt, Inc., Gainesville, FL (US)
Filed on Oct. 23, 2015, as Appl. No. 14/922,031.
Application 14/922,031 is a continuation in part of application No. 14/349,636, abandoned, previously published as PCT/US2013/026863, filed on Feb. 20, 2013.
Claims priority of provisional application 61/660,475, filed on Jun. 15, 2012.
Prior Publication US 2021/0178325 A1, Jun. 17, 2021
Int. Cl. B01J 20/20 (2006.01); B01D 53/64 (2006.01); B01J 20/28 (2006.01); B01J 20/30 (2006.01); B01J 20/34 (2006.01); B01D 53/86 (2006.01); B01J 20/02 (2006.01)
CPC B01D 53/64 (2013.01) [B01D 53/8665 (2013.01); B01J 20/0229 (2013.01); B01J 20/20 (2013.01); B01J 20/28009 (2013.01); B01J 20/3021 (2013.01); B01J 20/3416 (2013.01); B01J 20/3433 (2013.01); B01D 2253/102 (2013.01); B01D 2255/20738 (2013.01); B01D 2257/602 (2013.01); B01D 2259/814 (2013.01)] 7 Claims
 
1. 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).