| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a catalyst for deoxidizing NO<SB>x</SB>selectively which has excellent heat resistance in an environment of high temperature of ≥700°C and high-level NO<SB>x</SB>removing activity in the temperature range of 200-700°C. <P>SOLUTION: The catalyst for deoxidizing NO<SB>x</SB>selectively is used for deoxidizing NO<SB>x</SB>to be discharged from an internal-combustion engine into NH<SB>3</SB>, and the catalyst is equipped with a zirconia carrier, W and/or Mo to be deposited on the zirconia carrier and Fe to be deposited on the zirconia carrier. <P>COPYRIGHT: (C)2007,JPO&INPIT |
