PURPOSE: To obtain an adsorbent acting effectively on acidic and basic harmful malodorous components, having a large adsorption capacity and capable of being easily regenerated by forming the adsorbent with a mixture of a proton- exchange mordenite having a specified SiO2-Al2O3 ratio and at least one between the Al2O3 and SiO2, carrying cobalt oxide.
CONSTITUTION: The adsorbent is formed with a mixture of a proton-exchange mordenite having 10-60 molar ratio of SiO2/Al2O3 and at least one between the Al2O3, and SiO2 carrying cobalt oxide. The adsorbent is provided with an adsorbent bed 1 furnished to a passage for the treated gas, a combustion catalyst bed 3 on the downstream side of the adsorbent bed 1, a catalyst bed heating means 2 to heat the combustion catalyst bed 3 above the temp. where the catalyst functions and an adsorbent heating means 1 for supplying the exhaust heat from the combustion catalyst bed 3 under operation to the adsorbent bed 1 to heat the adsorbent, and the adsorbent bed 1 is formed with the adsorbent.
NITTA MASAHIRO
UEDA YOSHIKI
