SEAWATER FLUE-GAS DESULFURIZATION SYSTEM, AND POWER GENERATING SYSTEM

摘要

This seawater flue-gas desulfurization system (10) is characterized by having: a flue-gas desulfurization absorption tower (11) for purifying exhaust gas (25) by bringing the exhaust gas (25) into gas-liquid contact with seawater (21a); a dilution mixing tank (12) disposed on the downstream side of the flue-gas desulfurization absorption tower (11) and for diluting and mixing, with seawater (21b), sulfur content absorbed seawater (27) containing sulfur content; a seawater supply line (L12) for supplying seawater (21a) to the flue-gas desulfurization absorption tower (11); and surplus seawater branching pipes (L21, L22) diverging from the seawater supply line (L12) at the interior and/or the exterior of the flue-gas desulfurization absorption tower (11) and for supplying seawater (21a) to the dilution mixing tank (12).