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Title: Sorbents for the oxidation and removal of mercury

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.
Inventors:
; ;
Issue Date:
OSTI Identifier:
1154945
Assignee:
Energy & Enviromental Research Center Foundation (Grand Forks, ND) NETL
Patent Number(s):
8,821,819
Application Number:
13/966,768
Contract Number:
FC26-98FT40320
Research Org:
National Energy Technology Laboratory, Pittsburgh, PA, and Morgantown, WV (United States)
Sponsoring Org:
USDOE
Country of Publication:
United States
Language:
English
Subject:
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY

Works referenced in this record:

Mercury capture by an activated carbon in a fixed-bed bench-scale system
journal, October 1998
  • Dunham, Grant E.; Miller, Stanley J.; Chang, Ramsey
  • Environmental Progress & Sustainable Energy, Vol. 17, Issue 3, p. 203-208
  • DOI: 10.1002/ep.670170321

The reduction of gas phase air toxics from combustion and incineration sources using the MET–Mitsui–BF activated coke process
journal, June 2000