Chemistry of inorganic compounds – Modifying or removing component of normally gaseous mixture
Reexamination Certificate
2009-01-20
2011-12-06
Vanoy, Timothy (Department: 1734)
Chemistry of inorganic compounds
Modifying or removing component of normally gaseous mixture
C423S235000, C423S239100, C423S215500, C423S243080, C422S168000, C422S169000, C422S170000, C422S172000, C422S177000
Reexamination Certificate
active
08071060
ABSTRACT:
A flue gas control system of a coal combustion boiler comprises an HCl atomizer that sprays hydrogen chloride to flue gas from a coal combustion boiler that uses coal as a fuel; NOxremoving apparatus that removes nitrogen oxides by ammonia denitration by adding ammonia to the flue gas after spraying hydrogen chloride and oxidizes mercury; an air preheater that recovers heat in the gas after removal of nitrogen oxides; a precipitator that removes particulates in the gas; an activated carbon atomizer that sprays activated carbon into the gas after particulate collection; a bag filter that collects activated carbon having adsorbed mercury; a desulfurizer that removes sulfur oxides in the flue gas after removal of activated carbon; a stack that discharges the gas which has undergone desulfurization to outside; and an ORP meter that measures an oxidation reduction potential for feeding air to a slurry absorbent in the desulfurizer.
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International Search Report of PCT/JP2009/050771, Mailing Date of Apr. 21, 2009.
Japanese Office Action date Mar. 15, 2011, issued in corresponding Japanese Patent Application No. 2008-010331.
Honjo Shintaro
Okino Susumu
Ukai Nobuyuki
Mitsubishi Heavy Industries Ltd.
Vanoy Timothy
Westerman Hattori Daniels & Adrian LLP
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