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    • 4. 发明授权
    • Method for decomposing chlorine-containing organic compound contained in exhaust gas and catalyst for use in the method
    • 用于分解废气中所含的含氯有机化合物的方法和用于该方法的催化剂
    • US06759565B1
    • 2004-07-06
    • US10130155
    • 2002-08-13
    • Yasuyoshi KatoMasatoshi Fujisawa
    • Yasuyoshi KatoMasatoshi Fujisawa
    • A62D300
    • B01J21/063B01D53/8625B01D53/8662B01D2257/2064B01D2257/404B01J23/22B01J23/28
    • The invention is to provide (1) a method for decomposing chlorine containing organic compounds (DXNs) contained in an exhaust gas in which method a high decomposition ratio of the DXNs can be obtained even at a low temperature and the effects by SOx can be repressed to a minimum and (2) a method for treating a used catalyst; the method for decomposing DXNs contained in an exhaust gas comprises contacting the DXNs contained in the exhaust gas with nitrogen dioxide (NO2) which is contained in the exhaust gas or added from the outside into the exhaust gas at 100 to 450° C. in the presence of a catalyst comprising a titanium oxideu, molybdenum oxide, and vanadium oxide, the contents of Ti, Mo, and V in which catalyst being in the range of 99 to 70/0.5 to 15/0.5 to 15 in terms of atomic ratio, respectively, to oxidatively decompose the DXNs with the nitrogen dioxide; and acocording to the method for treating a used catalyst, the DXNs adhered to the catalyst can be made innoxious by contacting the used catalyst with a gas containing NO2 to oxidatively decompose the DXN2 adhered to the catalyst, with the NO2.
    • 本发明提供(1)在废气中分解含氯有机化合物(DXN)的方法,其中即使在低温下也能获得DXN的高分解率的方法,并且可以抑制SOx的影响 (2)用于处理使用的催化剂的方法;废气中包含的DXN的分解方法包括将废气中包含的DXN与废气中所含的二氧化氮(NO 2)接触或从 在含有氧化钛,氧化钼和氧化钒的催化剂的存在下,在100〜450℃下将废气的外部进入到废气中,其中催化剂的含量在99〜 70 / 0.5〜15 / 0.5〜15,分别用二氧化氮氧化分解DXN; 并且根据用于处理使用的催化剂的方法,通过使所使用的催化剂与含有NO 2的气体接触来使附着在催化剂上的DXN2与NO2一起氧化分解催化剂的DXN2,可以使附着在催化剂上的DXN变得无毒。