| 申请日期 | 2025-06-27 | 申请号 | US12008609 |
| 公开（公告）号 | US7794679B2 | 公开（公告）日 | 2010-09-14 |
| 公开国别 | US | 申请人省市代码 | 全国 |
| 申请人 | Tadao Nakatsuji; Naoki Oya; Naohiro Sato | ||
| 简介 | The invention provides a catalyst for catalytically reducing nitrogen oxides in diesel engine exhaust gas by use of unburnt carbon contained in the diesel engine exhaust gas as a reducing agent, the catalyst comprising : (a) an acid zeolite, or(b) an alkali metal- and/or alkaline earth metal-containing zeolite, or(c) a rare earth metal-containing zeolite, or(d) a zeolite containing at least one transition metal selected from Fe, Co, Ni and Cu. | ||
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