| abstract |
(57) [Summary] [PROBLEMS] To provide an exhaust gas treatment device that can be made compact and low in cost. SOLUTION: A filter of a bag filter 2 which removes exhaust gas and desalinates by passing through a reaction product with HCl by collecting the reaction product is a ceramic filter 7 carrying at least one of an adsorbent and a metal catalyst. This ceramic filter 7 removes and desalts the exhaust gas in the same manner as in the prior art. At the same time, the dioxin in the exhaust gas is adsorbed on an adsorbent and / or decomposed by a metal catalyst to form a dioxin. X is reacted with NH 3 supplied from the NH 3 supply device 6 by an adsorbent catalytic action and / or a metal catalytic action to reduce and decompose and denitrate. In addition, SO X in the exhaust gas is converted to sulfuric acid or sulfuric acid. and in the form of an ammonium salt as a reaction product of NH 3, adsorbed by the adsorbent and / Alternatively, it is collected by a ceramic filter and desulfurized, thereby eliminating the need for an activated carbon adsorption tower that was conventionally required at the subsequent stage of the bag filter. |