Patent ID: 6077482
Filing Date: 2000-06-20
Classification: A62D,B01D,B01J

Abstract:
A treating apparatus for decomposing organohalogen compounds used for performing a decomposing method of the organohalogen compounds with catalyst comprising:a reactor filled with a catalyst,means for adding air to gas flow containing organohalogen compounds,means for conducting the gas flow containing said organohalogen compounds and air into said reactor,means for heating said reactor so that the gas flow contacts with the catalyst at a temperature in a range of 200.about.500.degree. C.,means for adding an effective amount of water vapor to the gas flow for decomposing said organohalogen compounds, andalkaline absorbers for washing organohalogen decomposition products, which are generated by contacting said gas flow with the catalyst filled into said reactors, with an alkaline aqueous solution in order to neutralize a part of carbon dioxide and halogenated hydrogen in said organohalogen decomposition products, whereinsaid catalyst comprises titania and tungsten oxide, the titania having a surface,said catalyst has an atomic ratio of Ti and W in a range from 20 mol % to 95 mol % Ti and from 5 mol % to 80 mol % W, andat least the surface of said titania is covered with a porous layer of tungsten oxide.