FLUE GAS DESULFURIZATION EQUIPMENT PROVIDED WITH FLUE GAS FINISHING DESULFURIZATION DEVICE, AND EXHAUST GAS TREATMENT SYSTEM USING SAID FLUE GAS DESULFURIZATION EQUIPMENT

摘要

This flue gas desulfurization equipment is provided with: a main desulfurization device (13) for removing sulfur oxide from a combustion exhaust gas (exhaust gas) (11) by means of an absorbent liquid slurry (absorbent liquid slurry) (12) containing a calcium compound; a finishing desulfurization device (15) for further removing sulfur oxide remaining in the desulfurized gas (14), from which sulfur oxide was removed in the main desulfurization device (13), until the concentration of said sulfur oxide is extremely low; and an absorbent liquid slurry supply means for supplying the absorbent liquid slurry (12) containing the calcium compound in a prescribed concentration to the finishing desulfurization device (15).