A METHOD FOR SIMULTANEOUS REMOVAL OF NOX AND SOX BY USING COMBINED PROCESS OF NONTHERMAL PLASMA AND LOW TEMPERATURE CATALYST AND AN APPARATUS USED FOR THE METHOD

摘要

The combined process of low-temperature plasma process and the low temperature catalytic process, to a method and device used therein for removing sulfur oxides (SOx) and nitrogen oxides (NOx) at the same time. The step of charging the ammonia and nitrogen at a low temperature plasma reactor, the propylene was added oxides (NOx) and sulfur oxides (SOx) contained the exhaust gas by oxidizing and neutralizing the nitrogen oxides and sulfur oxides in the exhaust gas; Removing the oxide and the neutralized reaction product; And a step of reducing, removing unreacted oxides of nitrogen at low temperature catalytic reactor;; And a gas inlet through which a method and a nitrogen oxide and sulfur oxide containing exhaust gas for removing NOx and SOx in the exhaust gas at the same time charged to, the inflow exhaust gas is, or introduced into the reactor, and be uniformly dispersed when being discharged to the outside include a gas one of the which is installed in a flow direction perpendicular to the perforated plate 26, and parallel to the gas flow direction, and discharge a plurality of discharge plates connected by a plate connecting bar 23 is 24, the number of the discharge plate 24, the plasma located at the center between the reactor casing fixed bar (21) securing the two discharge plate 24, a plasma reactor housing 20 on either side of the discharge plate to close to 20, the discharge plate 24 and the bottom and top, respectively discharge electrodes fixed rod (27, 27 ') being fixed to the discharge electrode fixed bar (27 at the top ") is off-gas containing a gas discharge port that is a plurality of the discharge electrode 25 and the treated exhaust gas connected to the discharge electrode a high voltage connection 28. the discharge in -Thermal plasma reactor (14) for oxidizing and neutralizing the nitrogen oxides and sulfur oxides; A dust collector 16, which is located downstream of the cold plasma reactor 14, to remove the oxide and the neutralized reaction product; And it located at the rear end of the dust collector 16, a catalyst 30 mounted therein, unreacted nitrogen that is provided on the inlet and gas, a gas outlet in a flow direction perpendicular to the direction of gas comprises a porous plate (32) the simultaneous removal of nitrogen oxides and sulfur oxides in the exhaust gas apparatus comprising a low-temperature catalytic reactor 18 for reducing the oxides removed is provided. The NOx and SOx in the exhaust gas is removed at the same time with good efficiency by the method and apparatus of the present invention.