发明名称 |
Ammonia oxidation catalyst having low N<sub>2</sub>O by-product formation |
摘要 |
The present invention relates to a catalytic composition comprising a noble metal on an acidic tungsten-containing mixed oxide, a method for producing the catalytic composition and the use of the catalytic composition as oxidation catalyst. The invention further relates to a catalyst shaped body, which has the catalytic composition on a support, a washcoat containing the catalytic composition according to the invention and the use of the washcoat to produce a coated catalyst shaped body. |
申请公布号 |
US9573097(B2) |
申请公布日期 |
2017.02.21 |
申请号 |
US201113883088 |
申请日期 |
2011.10.28 |
申请人 |
CLARIANT PRODUKTE (Deutschland) GmbH |
发明人 |
Reichinger Markus;Maletz Gerd;Wanninger Klaus;Bentele Andreas;Schneider Martin |
分类号 |
B01D53/94;B01J35/04;B01J23/00;B01J23/652;B01J37/02 |
主分类号 |
B01D53/94 |
代理机构 |
Hueschen and Sage |
代理人 |
Hueschen and Sage |
主权项 |
1. A process for treating an exhaust gas, comprising the step of contacting the exhaust gas with an oxidation catalyst comprising a catalytic composition comprising a noble metal on an acidic tungsten-containing mixed oxide, wherein the acidic tungsten-containing mixed oxide is a Ce/Zr/W mixed oxide and wherein the mixed oxide has a tungsten content of from 5 to 10 wt.-%, relative to the total mixed oxide, wherein the exhaust gas is contacted with an SCR catalyst upstream of the oxidation catalyst, and wherein the oxidation catalyst provides a high selectivity for ammonia oxidation. |
地址 |
Frankfurt am Main DE |