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    CATALYST FOR REMOVING NITROGEN OXIDES AND METHOD FOR PRODUCING SAME
    1.
    发明公开
    CATALYST FOR REMOVING NITROGEN OXIDES AND METHOD FOR PRODUCING SAME 审中-公开
    KATALYSATOR ZUR ENTFERNUNG VON STICKSTOFFOXIDEN UND VERFAHREN ZU SEINER HERSTELLUNG

    公开(公告)号：EP2380663A4

    公开(公告)日：2017-05-10

    申请号：EP10733537

    申请日：2010-01-21

    申请人： MITSUBISHI PLASTICS INC

    发明人： MATSUO TAKESHI ,  TAKEWAKI TAKAHIKO ,  NISHIOKA DAISUKE ,  OSHIMA KAZUNORI ,  CHEN HAIJUN ,  KAKIUCHI HIROYUKI

    IPC分类号： B01J29/85 ,  B01D53/94 ,  F01N3/10

    CPC分类号： B01J29/85 ,  B01D53/9418 ,  B01D2255/20738 ,  B01D2255/20761 ,  B01D2255/50 ,  B01D2255/65 ,  B01D2255/707 ,  B01D2255/9202 ,  B01D2258/012 ,  B01J23/72 ,  B01J29/83 ,  B01J35/002 ,  B01J35/006 ,  B01J35/023 ,  B01J35/04 ,  B01J37/0009 ,  B01J37/0045 ,  B01J2229/20 ,  F01N2510/063

    摘要： The object is to provide an exhaust gas purification catalyst that exhibit high nitrogen oxide purification performance, and to provide a simple and efficient method for producing the catalyst, in which the amount of the waste liquid is reduced, further, an object of the invention is to provide a zeolite-containing catalyst for purifying nitrogen oxides, which does not use an expensive noble metal or the like and which has high nitrogen oxide purification performance. The present invention relates to a catalyst for purifying nitrogen oxides, which comprises: zeolite at least containing an aluminium atom and a phosphorus atom in the skeleton structure thereof; and a metal supported on the zeolite, wherein a fluctuation coefficient of intensity of the metal is at least 20%, when performing an element mapping of the metal in the catalyst with an electron probe microanalyzer, and, a catalyst for purifying nitrogen oxides, which comprises the zeolite containing at least a silicon atom, a phosphorus atom and an aluminium atom, and having an adsorption retention rate of at least 80% in a water vapor repetitive adsorption/desorption test at 90°C.

    摘要翻译： 本发明的目的是提供一种氮氧化物净化性能高的废气净化催化剂，并且提供一种简单且有效的废液量减少的催化剂的制造方法，本发明的目的在于提供一种废气净化催化剂 提供一种不使用昂贵的贵金属等而具有高氧化氮净化性能的用于净化氮氧化物的含沸石催化剂。 净化氮氧化物的催化剂，其包括：在其骨架结构中至少含有铝原子和磷原子的沸石; 以及负载在所述沸石上的金属，其中，当用电子探针显微分析仪进行所述催化剂中的所述金属元素映射时，所述金属的强度波动系数为至少20％，以及净化氮氧化物的催化剂， 包含至少含有硅原子，磷原子和铝原子的沸石，并且在90℃下的水蒸汽重复吸附/解吸试验中具有至少80％的吸附保留率。