NOX SELECTION REDUCTION CATALYST

NOX SELECTION REDUCTION CATALYST

申请(专利)号： JP20040327101

专利号： JP2006136776A 主分类号： B01J29/78 申请权利人： TOYOTA

CENTRAL RES & DEV LAB INC 公开国代码： JP 优先权国家： JP

摘 要：

PROBLEM TO BE SOLVED: To provide an NO_x selection reduction catalyst capable of exhibiting high

NO_x cleaning activity from a low temperature area to a high temperature area and suppressing discharge of

N₂O.;SOLUTION: The catalyst selectively reduces

NO_x discharged from a dilution combustion system internal

combustion engine by NH₃ and comprises an oxide containing at least Mn and zeolite in which Fe is ion-exchanged. The oxide containing Mn exhibits the high NO_x cleaning activity at the low temperature area and zeolite in which Fe is ion-exchanged exhibits the high

NO_x cleaning activity at the high temperature area. Although the oxide containing at least Mn further

produces N₂O at the high temperature area, since zeolite in which Fe is ion-exchanged is provided with

申请日： 2004-11-10 公开公告日： 2006-06-01

分类号： B01J29/78;

B01D53/94

发明设计人： IWASAKI MASAOKI;

YAMAZAKI KIYOSHI 申请国代码： JP

优先权： 20041110 JP

2004327101

摘 要 附 图：

activity for reducing N₂O, discharge of N₂O can be suppressed.;COPYRIGHT: (C)2006,JPO&NCIPI 主权项：

NH₃によってNO_xを選択的に還元する触媒であって、少なくともMnを含む酸化物と、Feがイオン交換されたゼオライトと、からなることを特徴とするNO

权 利 要 求 说 明 书

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