| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a NOx reduction catalyst, a NOx reduction catalyst system and a NOx reduction method which have high NOx treating capacity even at low temperature. <P>SOLUTION: The NOx reduction catalyst 5 for reducing a NOx in a gas to be treated comprises a catalyst carrier containing at least one oxide selected from the group consisting of Al<SB>2</SB>O<SB>3</SB>, TiO<SB>2</SB>, ZrO<SB>2</SB>and a zeolite, at least one NOx adsorbing constituent selected from the group consisting of an alkali metal, an alkali earth metal and a rear earth, and at least one NOx cleaning constituent selected from the group consisting of V, Fe, Ce, and La. <P>COPYRIGHT: (C)2008,JPO&INPIT |
