| 发明名称 | Method for the preparation of a catalysed particulate filter and catalysed particulate filter | ||
| 摘要 | Method for the preparation of a catalysed particulate filter and a particulate filter. The method comprises the steps of a) providing a catalyst wash coat with a first catalyst active in burning off of soot and a second catalyst active in selective catalytic reduction of nitrogen oxides; b) coating a particulate filter body with the catalyst wash coat on the dispersion side and the permeate side of the filter body and within partition walls of the filter body; and c) drying and heat treating the coated filter body to obtain the catalysed particulate filter. | ||
| 申请公布号 | US9073047(B2) | 申请公布日期 | 2015.07.07 |
| 申请号 | US201113879664 | 申请日期 | 2011.11.01 |
| 申请人 | Haldor Topsoe A/S | 发明人 | Johansen Keld |
| 分类号 | B01J21/00;B01J23/00;B01J25/00;B01J29/00;B01J23/10;B01J37/02;B01J23/30;B01J37/00;F01N3/023;B01D53/94 | 主分类号 | B01J21/00 |
| 代理机构 | Dickstein Shapiro LLP | 代理人 | Dickstein Shapiro LLP |
| 主权项 | 1. Method for the preparation of a catalyzed particulate filter, the method comprising the steps of: a) providing a single catalyst wash coat obtained from a wash coat suspension containing a first catalyst active in burning off of soot in combination with a second catalyst active in selective catalytic reduction of nitrogen oxides; b) coating a particulate filter body with the catalyst wash coat on the dispersion side and the permeate side of the filter body and within partition walls of the filter body; and c) drying and heat treating the coated filter body to obtain the catalyzed particulate filter, wherein the first or the second catalyst in the wash coat suspension has a particle size equal to or larger than the mean pore size of the filter walls. | ||
| 地址 | Lyngby DK | ||