Chemistry of inorganic compounds – Modifying or removing component of normally gaseous mixture
Reexamination Certificate
2011-06-07
2011-06-07
Vanoy, Timothy C (Department: 1793)
Chemistry of inorganic compounds
Modifying or removing component of normally gaseous mixture
C423S244010, C423S244040, C423S244070, C423SDIG018, C431S002000, C431S008000, C110S186000, C110S188000, C110S203000, C110S218000, C110S342000, C110S344000, C110S345000, C502S400000, C502S407000, C502S414000, C106S705000, C106S713000, C106S718000, C106S734000, C422S108000, C422S110000, C422S111000
Reexamination Certificate
active
07955577
ABSTRACT:
Sorbent components containing calcium, alumina, and silica are used in combination during coal combustion to produce environmental benefits. Sorbents are added to the coal ahead of combustion and/or are added into the flame or downstream of the flame, preferably at minimum temperatures to assure complete formation of the refractory structures that result in various advantages of the methods. When used together, the components reduce emissions of elemental and oxidized mercury; increase the level of Hg, As, Pb, and/or Cl in the coal ash; decrease the levels of leachable heavy metals (such as Hg) in the ash, preferably to levels below the detectable limits; and make a highly cementitious ash product.
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McCoy et al., Full-Scale Mercury Sorbent Injection Testing at DTE Energy's St. Clair Station, Paper #97, DTE Energy, Aug. 30-Sep. 2, 2004.
Sudhoff Presentation: “Anticipated Benefits of the TOXECON Retrofit for Mercury and Multi-Pollutant Control T
Harness Dickey & Pierce PLC
NOx II, Ltd
Vanoy Timothy C
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