Mercury reduction system and mercury reduction method of...

Details Mercury reduction system and mercury reduction method of... Mercury reduction system and mercury reduction method of...

2011-03-08

2011-03-08

Vanoy, Timothy C (Department: 1734)

Chemistry of inorganic compounds

Modifying or removing component of normally gaseous mixture

C423S239100, C423S243010, C423SDIG018, C422S168000, C422S169000, C422S170000, C422S171000, C422S177000, C422S180000, C422S105000, C422S111000

Reexamination Certificate

active

07901645

ABSTRACT:
A mercury reduction system according to the present embodiment is a mercury reduction system that reduces NOx and Hg in flue gas discharged from a boiler, and includes a chemical supplying unit that mixes an NH4Cl solution, an NH3solution, and an HCl solution in liquid states, and supplies a mixed solution into a flue provided downstream of the boiler, a reduction denitration apparatus that includes a denitration catalyst reducing NOx in the flue gas with NH3and oxidizing Hg in the presence of HCl, and a wet desulfurization apparatus that reduces Hg oxidized in the reduction denitration apparatus with limestone-gypsum slurry.

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International Search Report of PCT/JP2009/061028, dated Sep. 15, 2009.

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