| 摘要 |
PROBLEM TO BE SOLVED: To enable harmless emission to the atmosphere by converting the whole nitrogen monoxide in an exhaust into nitrogen dioxide by an ultraviolet ray lamp and a silent discharge ozone generator, and adsorbing and catching the whole amount of nitrogen dioxide by a gas adsorption vessel. SOLUTION: Oxygen is converted into ozone by an ultraviolet ray generated by an ultraviolet ray lamp 12 provided in the inside of an oxidation reaction vessel 3, and nitrogen monoxide is converted into nitrogen dioxide to convert nitrogen monoxide in an exhaust into nitrogen dioxide. A large quantity of ozone is introduced from a silent discharge ozone generator 6 communicating through an ozone introduction pipe to the oxidation reaction vessel 3, and nitrogen monoxide is reacted with the ozone together with the action of the ultraviolet ray to convert the whole nitrogen monoxide into nitrogen dioxide. The whole amount of the exhaust for converting nitrogen monoxide into nitrogen dioxide in an ozone oxidation reaction vessel 9 is adsorbed by a nitrogen dioxide adsorbent 15 filled between the upper depression filter 13 and the lower depression filter 14 of a gas adsorption vessel 4. Clean air is sucked into a suction vessel 5 connected to a blower 16, and the harmless exhaust is discharged from an exhaust opening 17.
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