EXHAUST GAS TREATMENT DEVICE AND METHOD

摘要

PROBLEM TO BE SOLVED: To provide an exhaust gas treatment device and an exhaust gas treatment method capable of removing mercury existing in an exhaust gas, thereby providing a gypsum high in quality.

SOLUTION: The exhaust gas treatment device for treating sulfur oxides and mercury incorporated in an exhaust gas 11 is provided with: a gas cooling device 31 for removing fly ash in the exhaust gas 11 and spraying cooling liquid 30 for dropping the gas temperature; a cooling liquid tank 35 for storing the cooling liquid 30 from the gas cooling device 31; a filter 32 for reducing the turbidity concentration in the cooling liquid 30 from the cooling tank 35; a mercury adsorber 33 for adsorbing mercury chloride in the cooling liquid 30 passing through the filter 32; and a desulfurization device 20 for removing sulfur oxides in the exhaust gas from the gas cooling device 31 with a lime absorbing liquid 12.

COPYRIGHT: (C)2007,JPO&INPIT