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    Device for eliminating n2o within exhaust gas and method for eliminating n2o
    6.
    发明专利
    Device for eliminating n2o within exhaust gas and method for eliminating n2o 有权
    用于消除排气中的N2O的装置和用于消除N 2 O的方法

    公开(公告)号：JP2011194332A

    公开(公告)日：2011-10-06

    申请号：JP2010064687

    申请日：2010-03-19

    申请人： Metawater Co Ltd ,  メタウォーター株式会社

    发明人： YAMADA MASAKI ,  SASAKI TOICHIRO ,  NOIRI NATSUMI

    IPC分类号： B01D53/86 ,  B01D53/94 ,  B01J29/072

    CPC分类号： B01D53/9427 ,  B01D53/8631 ,  B01D2255/20738 ,  B01D2255/50 ,  B01D2255/9045 ,  B01D2257/402 ,  B01D2258/01 ,  B01D2258/0283 ,  B01D2258/0291 ,  B01J29/072 ,  B01J29/46 ,  B01J29/7615 ,  B01J35/023 ,  B01J35/026 ,  B01J35/04 ,  B01J37/0246 ,  B01J2229/186 ,  F23J15/02 ,  F23J2215/101 ,  F23J2219/10 ,  Y02C20/10

    摘要： PROBLEM TO BE SOLVED: To provide a method and a device for eliminating NO in exhaust gas which improve the intrinsic NO-decomposing capability of an NO decomposition catalyst and allows the reduction of the amount of the catalyst used for keeping the emission of NO within a predetermined target range of reduction.SOLUTION: In the device for eliminating NO, two or more gas ducts 1 and two or more catalyst filled layers 2 filled with a NO decomposition catalyst are arranged each alternately. Gas ducts 1 adjacent to each other through a catalyst filled layer 2 consist of a gas introduction path 11 and a gas discharge path 12, and valves 3 which are opened in order as deterioration of the NO decomposition catalyst proceeds with time and increase accumulatively the number of the catalyst filled layers used are disposed in each gas passage. Using the NO removal apparatus, the NO removal method includes opening the valves 31 and 32 with the time change of the NO decomposition catalyst after a start of a NO removal treatment so as to increase accumulatively the number of the catalyst filled layers 2 used.

    摘要翻译： 要解决的问题：提供一种用于消除废气中的NO的方法和装置，其提高NO分解催化剂的本征NO分解能力，并且允许将用于保持NO的排放的催化剂的量减少到 预定目标的还原范围。解决方案：在用于消除NO的装置中，交替地布置两个或更多个气体导管1和填充有NO分解催化剂的两个或更多个催化剂填充层2。 通过催化剂填充层2彼此相邻的气体管道1由气体引入路径11和气体排出路径12构成，随着NO分解催化剂的劣化随着时间的推移而开放的阀3累积地增加 的催化剂填充层被设置在每个气体通道中。 使用NO除去装置，NO除去方法包括在NO去除处理开始之后NO分解催化剂的时间变化来打开阀31和32，以便累积地增加使用的催化剂填充层2的数量。

    Exhaust purifying catalyst
    9.
    发明专利
    Exhaust purifying catalyst 有权
    排气净化催化剂

    公开(公告)号：JP2012086199A

    公开(公告)日：2012-05-10

    申请号：JP2010237550

    申请日：2010-10-22

    申请人： Toyota Motor Corp ,  トヨタ自動車株式会社

    发明人： NOBUKAWA KEN

    IPC分类号： B01J23/63 ,  B01D53/94 ,  F01N3/10

    CPC分类号： B01D53/9427 ,  B01J23/63 ,  F01N3/0807 ,  F01N3/0864 ,  F01N2510/0682 ,  Y02T10/20

    摘要： PROBLEM TO BE SOLVED: To provide a catalyst for exhaust gas purification that can give high NOx purification performance even after endurance under A/F fluctuation condition.SOLUTION: In the catalyst for exhaust gas purification, a former-stage catalyst 3 at a position on the upstream side of the exhaust gas flowing direction and a latter-stage catalyst 6 at a position on the downstream side are each arranged on a substrate 8. An OSC material 10 is contained in both the former-stage and the latter-stage catalyst and An OSC material 9 (hereafter abbreviated as OSC material (N)) not carrying a noble metal is contained in the former-stage catalyst and the latter-stage catalyst. The ratio of an OSC material (N) contained in the latter-stages catalyst to a total amount of the OSC material (N) is in the range of 0-50 mass%.

    摘要翻译： 要解决的问题：提供即使在A / F波动条件下耐久性能够提供高NOx净化性能的排气净化用催化剂。 解决方案：在用于废气净化的催化剂中，在废气流动方向的上游侧的位置处的前一级催化剂3和位于下游侧的位置的后级催化剂6分别布置在 基材8.在前段催化剂和后段催化剂中都含有OSC材料10，在前段催化剂中含有不含贵金属的OSC材料9（以下简称为OSC材料（N）） 和后期催化剂。 后期催化剂中所含的OSC材料（N）与OSC材料（N）的总量的比例在0〜50质量％的范围内。 版权所有（C）2012，JPO＆INPIT