PROCESS OF REMOVING NOx FROM FLUE GAS
    8.
    发明申请
    PROCESS OF REMOVING NOx FROM FLUE GAS 有权
    从燃气中除去NOx的过程

    公开(公告)号:US20130224095A1

    公开(公告)日:2013-08-29

    申请号:US13773975

    申请日:2013-02-22

    申请人: INTERCAT, INC.

    IPC分类号: B01D53/56

    摘要: The invention includes a process for reducing the amount of NOx discharged to atmosphere from a FCC unit, having a regenerator and a means for collecting and supporting catalyst particles. The process comprises adding a catalyst to the regenerator flue gas prior to entering the collecting means and precipitating the catalyst in the collecting means to form a catalyst bed. Ammonia or ammonia precursor is added to the flue gas prior to and/or within the collecting means. The flue gas NOx is reacted with the ammonia or ammonia precursor at 200° C. to 800° C. in the presence of the catalyst bed to reduce the NOx amount, and the flue gas containing a reduced amount of NOx is discharged to atmosphere. The catalyst is one or more supported transition or lanthanide metal catalysts. The process can also be utilized in any combustion process.

    摘要翻译: 本发明包括一种减少从具有再生器的FCC装置排放到大气中的NOx的量和用于收集和支撑催化剂颗粒的装置的方法。 该方法包括在进入收集装置之前向再生器烟气中加入催化剂,并将催化剂沉淀在收集装置中以形成催化剂床。 在收集装置之前和/或内部,将氨或氨前体加入烟道气中。 在催化剂床的存在下,烟道气NO x与氨或氨前体在200〜800℃下反应,以减少NOx量,并且将含有减少量的NOx的废气排放到大气中。 催化剂是一种或多种负载型过渡金属或镧系金属催化剂。 该方法也可用于任何燃烧过程。