发明名称 |
ZEOLITE/ALUMINA CATALYST SUPPORT COMPOSITIONS AND METHOD OF MAKING THE SAME |
摘要 |
Zeolite/alumina composite, and a method for making, the composite for use as a catalyst substrate or catalyst carrier and comprising zeolite having a silica/alumina ratio of greater than 300 and gamma alumina having a specific surface area of greater than 100 m<2>/g. The zeolite/alumina composite exhibits a modulus of rupture of at least 750 psi. Additionally, the invention is also directed at a three catalyst (TWC) system for use in the removal of hydrocarbons, carbon monoxide and oxides of nitrogen from waste gas, the TWC system comprising the following components: (1) a zeolite/alumina composite catalyst support exhibiting a modulus of rupture of at least 750 psi and having a zeolite with a silica/zeolite ratio of at least 300 and the alumina comprising a gamma alumina having a specific surface area of greater than 100 m<2>/g; and, (2) a noble metal catalyst impregnated on the catalyst support, the noble metal selected from the group consisting of platinum, rhodium, iridium and palladium. |
申请公布号 |
WO0147634(A1) |
申请公布日期 |
2001.07.05 |
申请号 |
WO2000US30357 |
申请日期 |
2000.11.03 |
申请人 |
CORNING INCORPORATED |
发明人 |
FABER, MARGARET, K.;WU, SHY-HSIEN;XIE, YUMING;ZAUN, KENNETH, E. |
分类号 |
F01N3/10;B01D53/86;B01D53/94;B01J29/06;B01J29/068;B01J29/40;B01J29/44;B01J32/00;B01J35/00;B01J35/04;B01J37/00 |
主分类号 |
F01N3/10 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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