| 发明名称 | Method for preventing the contamination by platinum of an SCR catalyst | ||
| 摘要 | The invention relates to a method for preventing the contamination by platinum of an SCR catalyst in an exhaust-gas treatment system, said system comprising an oxidation catalyst containing platinum on the inflow side of the SCR catalyst. The outflow side of the oxidation catalyst comprises a material zone which removes traces of platinum contained in the exhaust-gas stream. | ||
| 申请公布号 | US9492787(B2) | 申请公布日期 | 2016.11.15 |
| 申请号 | US201314407725 | 申请日期 | 2013.06.10 |
| 申请人 | UNICORE AG & CO. KG | 发明人 | Schuetze Frank-Walter;Pfeifer Marcus;Schiffer Michael;Symalla Martin;Hengst Christoph |
| 分类号 | B01J23/42;B01J23/52;B01J33/00;B01D53/94;B01J35/00;F01N3/20;B01J29/072 | 主分类号 | B01J23/42 |
| 代理机构 | Smith, Gambrell & Russell, LLP | 代理人 | Smith, Gambrell & Russell, LLP |
| 主权项 | 1. A method for preventing the contamination by platinum of an SCR catalyst in an exhaust gas treatment system, comprising: passing an exhaust gas stream through the exhaust gas treatment system, the exhaust gas treatment system comprising an oxidation catalyst substrate positioned upstream of the SCR catalyst, wherein the oxidation catalyst substrate comprises an oxidation-catalytically active coating containing platinum, and the oxidation catalyst substrate further comprises, on an outflow side of the substrate, a material zone that removes traces of platinum contained in the exhaust gas stream. | ||
| 地址 | Hanau-Wolfgang DE | ||