Selective reduction of nitric oxide
    1.
    发明授权
    Selective reduction of nitric oxide 失效
    选择性还原一氧化氮

    公开(公告)号:US5354544A

    公开(公告)日:1994-10-11

    申请号:US173230

    申请日:1993-12-27

    IPC分类号: B01D53/94 B01D47/00 B01D53/34

    摘要: This invention is directed to a method of treating automotive exhaust gas emissions or stationary source emissions. It comprises introducing an organic hydrocarbon compound or compounds containing nitro or nitroso functional groups into the emissions at a location adjacent the source of emission generation. Thereafter, the compound/emission mixture is exposed to a transition metal exchanged high silica ZSM5 zeolite catalyst. Subsequently, the effluent from the zeolite catalyst is exposed to an oxidation catalyst.

    摘要翻译: 本发明涉及一种处理汽车废气排放物或固定源排放物的方法。 它包括将有机烃化合物或含有硝基或亚硝基官能团的化合物引入邻近发射源的位置的排放物中。 此后,将化合物/发射混合物暴露于过渡金属交换的高二氧化硅ZSM5沸石催化剂。 随后,将来自沸石催化剂的流出物暴露于氧化催化剂。