Patent ID: 6533999
Filing Date: 2003-03-18
Classification: B01D

Abstract:
A method of processing a polluted gas containing harmful substances, comprising the steps of:mixing ozone with a polluted gas containing harmful substances; and allowing the ozone-mixed polluted gas to flow through an adsorbing layer containing a high-silica adsorbent, which substantially does not decompose ozone, selected from the group consisting of pentacile zeolite having a SiO2/Al2O3 ratio of about 10 to 100, dealumination faujasite having a SiO2/Al2O3 ratio of about 10 to 400 and mesoporous silicate having a SiO2/Al2O3 ratio of about 10 to 1000, selectively adsorbing both ozone and harmful substances on said high-silica adsorbent and oxidizing said harmful substances with said ozone on said high-silica adsorbent so as to make the harmful substances harmless within the adsorbing layer.