发明名称 |
Catalyst with lanthanide-doped zirconia and methods of making |
摘要 |
The invention generally relates to three-way catalysts and catalyst formulations capable of simultaneously converting nitrogen oxides, carbon monoxide, and hydrocarbons into less toxic compounds. Such three-way catalyst formulations contain ZrO2-based mixed-metal oxide support oxides doped with an amount of lanthanide. Three-way catalyst formulations with the support oxides of the present invention demonstrate higher catalytic activity, efficiency and longevity than comparable catalysts formulated with traditional support oxides. |
申请公布号 |
US9011784(B2) |
申请公布日期 |
2015.04.21 |
申请号 |
US201213570055 |
申请日期 |
2012.08.08 |
申请人 |
Clean Diesel Technologies, Inc. |
发明人 |
Golden Stephen J.;Hatfield Randal;Pless Jason D. |
分类号 |
B01D50/00;B01J23/10;B01J21/04;B01J23/63;C01G25/00;C01G25/02;C01F17/00;C04B35/486;C04B35/488;C04B35/50;B01J37/02;B01J37/03;B01J23/00;B01J35/00;B01J35/02;B01J37/00 |
主分类号 |
B01D50/00 |
代理机构 |
|
代理人 |
Carvis Thaddius J. |
主权项 |
1. A catalyst system comprising an overcoat, wherein said overcoat comprises an oxygen storage material (OSM) and a support oxide in a 1.5:1 ratio (by weight), wherein:
said OSM is 30% CeO2, 60% ZrO2, 5% Nd2O3, and 5% Pr6O11 (by weight); and said support oxide is support oxide comprises LaX %Zr(1-X) %O2 and/or PrX %Zr(1-X) %O2. |
地址 |
Oxnard CA US |