公开(公告)号：US06813884B2

公开(公告)日：2004-11-09

申请号：US09683642

申请日：2002-01-29

申请人： Albert Nazipovich Shigapov ,  Brendan Patrick Carberry ,  Robert Walter McCabe

发明人： Albert Nazipovich Shigapov ,  Brendan Patrick Carberry ,  Robert Walter McCabe

IPC分类号： F01N300

CPC分类号： B01D53/9418 ,  B01D2251/2062 ,  B01D2251/2067 ,  B01D2251/208 ,  B01D2255/1021 ,  F01N3/0231 ,  F01N3/035 ,  F01N3/206 ,  F01N13/009 ,  F01N2570/14 ,  F01N2610/02 ,  F01N2610/08

摘要： A diesel exhaust treatment system and method of oxidizing NO to NO2 at low temperatures are provided. The system utilizes a platinum catalyst on a zirconia-stabilized silica support which oxidizes NO in the exhaust gas to NO2 and uses the NO2 in an amount sufficient to oxidize particulate trapped on a particulate filter. The catalyst is preferably pre-treated at a temperature of between about 500 to 650° C. in a NO-oxygen-nitrogen mixture to increase conversion at low temperatures. The catalyst preferably includes an additional oxide component selected from the group consisting of TiO2, P2O5, WO3, B2O3, and Al2O3. or a heteropolyacid component to further increase activity at low temperatures or to decrease platinum loading at the same level of performance.

公开(公告)号：US6139814A

公开(公告)日：2000-10-31

申请号：US966729

申请日：1997-11-10

申请人： Albert Nazipovich Shigapov ,  George Wade Graham ,  Robert Walter McCabe

发明人： Albert Nazipovich Shigapov ,  George Wade Graham ,  Robert Walter McCabe

IPC分类号： C01B13/14 ,  C01B13/18 ,  C01F17/00 ,  C01G25/00 ,  C01G25/02

CPC分类号： C01B13/14 ,  C01B13/185 ,  C01F17/0043 ,  C01G25/00 ,  C01G25/02 ,  C01P2002/50 ,  C01P2002/72 ,  C01P2004/82 ,  C01P2006/12 ,  C01P2006/13

摘要： The invention is a method for producing a metal oxide product by steps including absorbing a liquid solution of metal oxide precursors onto crystalline or microcrystalline, porous structured organic material capable of being combusted at elevated temperatures; heating the organic material containing the absorbed solution for a time and at a temperature sufficient to vaporize the liquid, convert the metal oxide precursors to metal oxides, and combust the organic material. The metal oxide products have been found to retain a high specific surface area (porous structure) even when subjected to elevated temperatures, which makes them ideally suited for use as catalyst materials.

摘要翻译： 本发明是通过以下步骤生产金属氧化物产品的方法：包括将金属氧化物前体的液体溶液吸收到能够在高温下燃烧的结晶或微晶多孔结构的有机材料上; 将含有吸收溶液的有机材料加热至足以蒸发液体的温度，并将金属氧化物前体转化为金属氧化物，并燃烧有机材料。 已经发现金属氧化物产物即使经历升高的温度也能保持高比表面积（多孔结构），这使得它们非常适合用作催化剂材料。

公开(公告)号：US06893998B2

公开(公告)日：2005-05-17

申请号：US10144507

申请日：2002-05-13

申请人： Albert Nazipovich Shigapov ,  George Wade Graham ,  Haren Sakaral Gandhi ,  Hung-Wen Jen

发明人： Albert Nazipovich Shigapov ,  George Wade Graham ,  Haren Sakaral Gandhi ,  Hung-Wen Jen

IPC分类号： F01N3/10 ,  B01D53/86 ,  B01D53/94 ,  B01J23/10 ,  B01J23/38 ,  B01J23/44 ,  B01J23/63 ,  B01J37/02 ,  F01N3/28 ,  B01J23/40 ,  B01J23/42 ,  B01J23/00

CPC分类号： B01D53/945 ,  B01J23/10 ,  B01J23/63 ,  B01J37/0215 ,  Y02A50/2324 ,  Y02T10/22

摘要： An exhaust gas catalyst and method of manufacturing same. The invention provides for a cost-effective material which lowers the cold-start emissions from the exhaust of vehicles. The invention is a passive system which accelerates the light-off temperature of catalyst in a cost-effective fashion. The invention includes a method of manufacturing an exhaust gas catalyst capable of lowering cold-start emissions including the steps of providing an oxide mixture having praseodymium and cerium, doping about 0-10% weight zirconium and about 0-10% weight yttrium to the oxide mixture, adding about 0-2% weight metal including palladium, platinum, or rhodium to the oxide mixture, mixing gamma aluminum to the oxide mixture for washcoating and washcoating the oxide mixture onto a monolithic substrate.

摘要翻译： 一种废气催化剂及其制造方法。 本发明提供了降低来自车辆排气的冷启动排放的具有成本效益的材料。 本发明是一种以成本有效的方式加速催化剂的起燃温度的被动系统。 本发明包括一种制造能够降低冷起动排放的废气催化剂的方法，包括以下步骤：提供具有镨和铈的氧化物混合物，将约0-10％重量的锆和约0-10％重量的钇掺杂到氧化物 向氧化物混合物中加入约0-2％重量的金属，包括钯，铂或铑，将γ铝混合到氧化物混合物上，以将该氧化物混合物洗涤和涂覆到整体基底上。