Sorbents for the oxidation and removal of mercury

Patent · Tue Sep 02 04:00:00 EDT 2014

OSTI ID:1154945

Olson, Edwin S.; Holmes, Michael J.; Pavlish, John Henry

A promoted activated carbon sorbent is described that is highly effective for the removal of mercury from flue gas streams. The sorbent comprises a new modified carbon form containing reactive forms of halogen and halides. Optional components may be added to increase reactivity and mercury capacity. These may be added directly with the sorbent, or to the flue gas to enhance sorbent performance and/or mercury capture. Mercury removal efficiencies obtained exceed conventional methods. The sorbent can be regenerated and reused. Sorbent treatment and preparation methods are also described. New methods for in-flight preparation, introduction, and control of the active sorbent into the mercury contaminated gas stream are described.

• Research Organization: National Energy Technology Laboratory, Pittsburgh, PA, and Morgantown, WV (United States)
• Sponsoring Organization: USDOE
• DOE Contract Number: FC26-98FT40320
• Assignee: Energy & Enviromental Research Center Foundation (Grand Forks, ND)
• Patent Number(s): 8,821,819
• Application Number: 13/966,768
• OSTI ID: 1154945
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY