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18 条记录 (耗时 0.027 秒)

    System for purifying exhaust gas for use in an automobile
    8.
    发明授权
    System for purifying exhaust gas for use in an automobile 失效
    用于汽车净化废气的系统

    公开(公告)号：US5388405A

    公开(公告)日：1995-02-14

    申请号：US953218

    申请日：1992-09-30

    申请人： Masakatsu Fujishita ,  Takeshi Atago ,  Akio Honji ,  Osamu Kuroda ,  Toshio Ogawa ,  Noriko Watanabe ,  Minoru Osuga

    发明人： Masakatsu Fujishita ,  Takeshi Atago ,  Akio Honji ,  Osamu Kuroda ,  Toshio Ogawa ,  Noriko Watanabe ,  Minoru Osuga

    IPC分类号： F01N3/02 ,  F01N3/08 ,  F01N3/20 ,  F01N3/22 ,  F01N3/24 ,  F01N9/00 ,  F01N13/02 ,  F01N13/04 ,  F02M25/07

    CPC分类号： F01N3/0835 ,  F01N13/009 ,  F01N13/011 ,  F01N3/0814 ,  F01N3/0871 ,  F01N3/0878 ,  F01N3/2093 ,  F01N2240/02 ,  F01N2240/18 ,  F01N2250/12 ,  F01N2410/12 ,  F01N3/20 ,  F02M26/15

    摘要： A system for purifying an exhaust gas for use in an automobile is disclosed which does not externally discharge unburnt hydrocarbons until a catalyst becomes active. An adsorbent is provided upstream of the catalyst. A heat exchanger is disposed between an upstream portion of the adsorbent and a portion between the adsorbent and the catalyst for controlling the elevation of the temperature of the adsorbent and for promoting the elevation of the temperature of the catalyst. The unburnt hydrocarbons are absorbed by the adsorbent in the initial period of time from starting of an engine until the catalyst becomes active. Temperature control is made in such a manner that the unburnt hydrocarbons which are adsorbed by the adsorbent begins to be desorbed therefrom substantially simultaneously with the time when the catalyst begins to function. A large quantity of unburnt hydrocarbons which are emitted from an engine immediately after the starting of the engine are prevented from being externally discharged without being treated.

    摘要翻译： 公开了一种用于净化汽车中使用的废气的系统，其在外界不排出未燃烧的烃，直到催化剂变得活跃。 在催化剂的上游设置吸附剂。 吸附剂的上游部分和吸附剂和催化剂之间的部分设置有热交换器，用于控制吸附剂的温度升高并促进催化剂的温度升高。 未燃烧的碳氢化合物在起动发动机直到催化剂变成活性的初始阶段被吸附剂吸收。 以这样的方式进行温度控制，使得吸附在吸附剂上的未燃烧的碳氢化合物在催化剂开始起作用时基本同时脱附。 在发动机起动之后立即从发动机排出的大量未燃烧的碳氢化合物被防止被外部排出而不被处理。

    Process and apparatus for the decomposition of fluorine compounds
    9.
    发明授权
    Process and apparatus for the decomposition of fluorine compounds 失效
    氟化合物分解的方法和装置

    公开(公告)号：US07261868B2

    公开(公告)日：2007-08-28

    申请号：US10987156

    申请日：2004-11-15

    申请人： Shuichi Kanno ,  Akio Honji ,  Hisao Yamashita ,  Shigeru Azuhata ,  Shin Tamata ,  Kazuyoshi Irie

    发明人： Shuichi Kanno ,  Akio Honji ,  Hisao Yamashita ,  Shigeru Azuhata ,  Shin Tamata ,  Kazuyoshi Irie

    IPC分类号： B01D53/48

    CPC分类号： B01J23/63 ,  B01J23/40 ,  B01J23/6527 ,  B01J23/66 ,  B01J23/70 ,  C01B7/191

    摘要： Fluorine compounds such as C2F6, CF4, CHF3, SF6 and NF3, are made to contact with a fluorine compound decomposition catalyst and a catalyst for the decomposition of at least one of CO, SO2F2 and N2O in the presence of water or in the presence of water and oxygen. The catalyst for the decomposition of at least one of CO, SO2F2 and N2O preferably contains at least one selected from Pd, Pt, Cu, Mn, Fe, Co, Rh, Ir and Au in the form of a metal or an oxide. According to the invention, the fluorine compound can be converted to HF, which can be absorbed by water or an alkaline aqueous solution. Furthermore, a substance such as CO, SO2F2 and N2O which is formed by decomposition of the fluorine compound can also be decomposed.

    摘要翻译： 氟化合物如C 2 F 6，CF 4，CH 3，SF 6， SUB＆gt;和NF 3 3与氟化合物分解催化剂和用于分解CO，SO 2 F 2的至少一种的催化剂接触 和/或N 2 O在水的存在下或在水和氧的存在下进行。 用于分解CO，SO 2 H 2 N 2和N 2 O 2中的至少一种的催化剂优选含有选自Pd， Pt，Cu，Mn，Fe，Co，Rh，Ir和Au。 根据本发明，可以将氟化合物转化为HF，其可被水或碱性水溶液吸收。 此外，通过氟化合物的分解形成的物质如CO，SO 2 F 2 N和N 2 O O也可以被分解 。