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    • 2. 发明授权
    • Process for purification of exhaust gases and catalyst used for purification of exhaust gases in this process
    • 在此过程中净化废气和用于净化废气的催化剂的方法
    • US07740819B2
    • 2010-06-22
    • US10354201
    • 2003-01-30
    • Atsushi MoritaJunji OkamuraShinyuki MasakiNoboru SugishimaMotonobu Kobayashi
    • Atsushi MoritaJunji OkamuraShinyuki MasakiNoboru SugishimaMotonobu Kobayashi
    • B01D53/56
    • B01D53/944B01D53/864
    • The present invention has an object to more enhance the efficiency of the purification of the CO-containing exhaust gases with a catalytic-component-supporting type catalyst, particularly, to enable both achievement of high purification efficiency and long-term stable maintenance of high purification efficiency without increasing the quantity of the catalytic component as supported. As a means of achieving this object, a process for purification of exhaust gases, according to the present invention, is a process for purification of exhaust gases to remove CO therefrom, and is characterized by comprising the step of bringing the exhaust gases into contact with a catalyst layer at a temperature of 250 to 600° C., a pressure drop of not more than 100 mmH2O, and a linear velocity of 0.5 to 10 m/s, wherein the catalyst layer includes a honeycomb-structural catalyst having an opening size of 1.0 to 3.0 mm, an opening ratio of 60 to 80%, and an inner wall thickness of less than 2 mm.
    • 本发明的目的是通过催化组分负载型催化剂来更有效地提高含CO废气的净化效率,特别是能够实现高纯化效率和高纯度的长期稳定的维持 效率而不增加所支持的催化组分的量。 作为实现该目的的手段,根据本发明的废气净化方法是净化废气以从其中除去CO的方法,其特征在于包括使废气与 催化剂层,其温度为250〜600℃,压降为100mmH2O以下,线速度为0.5〜10m / s,其中,催化剂层包含蜂窝结构催化剂,其具有开口尺寸 为1.0〜3.0mm,开口率为60〜80%,内壁厚度为2mm以下。