Patent ID: 7270063

Claim:
A method of removing mercury or mercury-containing material from flue gas produced by a coal-burning main furnace, the method comprising: feeding coal which contains mercury or mercury-containing material to a main furnace which produces flue gas; feeding the coal to an auxiliary burner which produces a slipstream of flyash, feeding the slipstream of flyash from the auxiliary burner into the flue gas produced by the main furnace; and introducing a mercury-active oxidant to at least one of the coal being fed to the auxiliary burner, the combustion air being fed to the auxiliary burner, and the flyash, and wherein the mercury-active oxidant comprises a manganese compound selected from the group consisting of methyl cyclopentadienyl manganese tricarbonyl, manganese sulfonate, manganese phenate, manganese salicylate, cyclopentadienyl manganese tricarbonyl, alkyl cyclopentadienyl manganese tricarbonyl, organic manganese tricarbonyl derivatives, alkyl cyclopentadienyl manganese derivatives, bis-cyclopentadienyl manganese, bis-alkyl cyclopentandienyl manganese, neutral and overbased manganese salicylates, neutral and overbased manganese phenates, neutral and overbased manganese sulfonates, manganese carboxylates, and combinations and mixtures thereof.