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1. 发明授权

US5587137A Exhaust gas conversion method using thermally stable zeolites 失效
标题翻译：使用热稳定沸石的废气转化方法
公开(公告)号：US5587137A
公开(公告)日：1996-12-24
申请号：US464109
申请日：1995-06-05
申请人： Srinivas H. Swaroop , Raja R. Wusirika
发明人： Srinivas H. Swaroop , Raja R. Wusirika
IPC分类号： B01D53/94 , F01N3/08 , F01N3/32 , F01N13/02 , B01J8/02
CPC分类号： B01D53/9481 , F01N13/009 , F01N3/0814 , F01N3/0835 , F01N3/0871 , F01N2250/12 , F01N2370/04 , F01N3/32
摘要： A system and method are disclosed for converting exhaust gas which comprises NO.sub.x, CO, and hydrocarbons, to innocuous products. Exhaust gas is contacted in undiverted flow with a zeolite suitable for adsorption of hydrocarbons, and with a main catalyst suitable for conversion of NO.sub.x, CO, and hydrocarbons to innocuous products. Adsorption occurs when the temperature of the zeolite is suitable therefor. Conversion occurs when the temperature of the main catalyst is suitable therefor. The zeolite and main catalyst are connected directly to one another, that is, in-line, without by-pass valving. The zeolite can be Y zeolite, Beta, ZSM-5, and combinations thereof, and has a SiO.sub.2 to Al.sub.2 O.sub.3, mole ratio of no greater than about 200, and is ion exchanged with a metal which can be rare earth, chromium, and combinations thereof.
摘要翻译：公开了一种用于将包含NOx，CO和烃的废气转化为无害产品的系统和方法。废气以适合于吸附烃的沸石和适用于将NOx，CO和烃转化为无害产品的主催化剂以未流动的流动接触。当沸石的温度适合时，会发生吸附。当主催化剂的温度适合时，发生转化。沸石和主催化剂彼此直接连接，即直列连接，无旁通阀。沸石可以是Y沸石，β，ZSM-5及其组合，并且具有SiO 2与Al 2 O 3的摩尔比不大于约200，并与可以是稀土，铬和组合的金属进行离子交换其中。

2. 发明授权

US5427601A Sintered metal bodies and manufacturing method therefor 失效
标题翻译：烧结金属体及其制造方法
公开(公告)号：US5427601A
公开(公告)日：1995-06-27
申请号：US767889
申请日：1991-09-30
申请人： Takashi Harada , Yoshihiro Fujiwara , Fumio Abe , Tsuneaki Ohashi , Hiroshige Mizuno , Kevin R. Brundage , Srinivas H. Swaroop , David F. Thompson , Raja R. Wusirika , David S. Weiss
发明人： Takashi Harada , Yoshihiro Fujiwara , Fumio Abe , Tsuneaki Ohashi , Hiroshige Mizuno , Kevin R. Brundage , Srinivas H. Swaroop , David F. Thompson , Raja R. Wusirika , David S. Weiss
IPC分类号： B22F1/00 , B01D53/94 , B01J23/86 , B22F3/11 , B22F5/00 , C22C32/00 , C22C33/02 , C22C38/00 , C22C29/12 , B22F3/00
CPC分类号： C22C32/0026 , B01D53/945 , B01J23/862 , C22C33/0285 , Y02T10/22 , Y10T428/12611
摘要： A sintered metal body is disclosed of composition consisting essentially of in weight percent about 5 to 40 Cr, about 2 to 30 Al, 0 to about 5 special metal, 0 to about 4 rare earth oxide additive, and the balance Fe group metal and unavoidable impurities,the composition including at least one component selected from component A and/or component B, component A being special metal, and component B being at least an effective amount of rare earth oxide additive,the special metal being a first special metal component, and optionally, a second special metal component when rare earth oxide additive is 0, the first special metal component consisting of at least one of: Y, lanthanides, Zr, Hf, Ti, Si, and B, and the second special metal component consisting of at least one of: alkaline earth metal, Cu, and Sn, and the special metal being a third special metal component when rare earth oxide additive is >0, the third special metal component consisting of at least one of Y, lanthanides, Zr, Hf, Ti, Si, alkaline earth metal, B, Cu, and Sn.The body is excellent in oxidation resistance at high temperatures, heat resistance, and corrosion resistance, and can be suitably used by itself as a carrier for catalysts, for exhaust gas purification, etc., or as a monolith catalyst comprising catalyst carrier and catalyst supported thereon, and as a heater or catalytic converter by providing electrodes on the body.
摘要翻译：公开了一种烧结金属体，其组成主要包括重量百分比约5至40 Cr，约2至30种Al，0至约5种特殊金属，0至约4种稀土氧化物添加剂，余量为Fe族金属，不可避免杂质，所述组合物包含选自组分A和/或组分B中的至少一种组分，组分A为特殊金属，组分B为至少有效量的稀土氧化物添加剂，所述特殊金属为第一特殊金属组分，以及任选地，当稀土氧化物添加剂为0时的第二特殊金属组分，所述第一特殊金属组分由以下中的至少一种组成：Y，镧系元素，Zr，Hf，Ti，Si和B，并且所述第二特殊金属组分的碱土金属，Cu和Sn中的至少一种，当稀土氧化物添加剂为> 0时，特殊金属是第三种特殊金属组分，第三种特殊金属组分由Y，镧系元素，Zr中的至少一种组成， H f，Ti，Si，碱土金属，B，Cu和Sn。本体在高温下的耐氧化性，耐热性和耐腐蚀性优异，可以适合用作催化剂载体，废气净化等，或作为包含催化剂载体和催化剂的整料催化剂以及作为加热器或催化转化器，通过在主体上设置电极。

3. 发明授权

US4990181A Aluminide structures and method 失效
标题翻译：铝化物结构和方法
公开(公告)号：US4990181A
公开(公告)日：1991-02-05
申请号：US323449
申请日：1989-03-14
申请人： Kim D. Pierotti , Srinivas H. Swaroop , Raja R. Wusirika
发明人： Kim D. Pierotti , Srinivas H. Swaroop , Raja R. Wusirika
IPC分类号： C01F7/02 , B01D39/20 , B22F3/11 , B22F3/23 , C22C1/04 , C22C14/00 , C22C19/03 , C22C21/00 , C22C28/00
CPC分类号： B01D39/2034 , B22F3/11 , C22C1/0416 , C22C1/0433 , C22C1/0458 , C22C1/0491 , B22F2998/00
摘要： The present invention is directed to porous sintered aluminide structures of aluminum, nickel, titanium, and/or rare earth metal. A process is disclosed for forming and sintering aluminides. Other components are optionally added to the aluminide compositions to vary the physical properties of the resultant structure.
摘要翻译：本发明涉及铝，镍，钛和/或稀土金属的多孔烧结铝化物结构。公开了用于形成和烧结铝化物的方法。任选地将其它组分加入到铝化物组合物中以改变所得结构的物理性质。

4. 发明授权

US5292991A Process for removal of hydrocarbons carbon manoxide, and oxides of nitrogen from oxygen-containing waste gas using molecular sieve-palladium-platinum catalyst on a substrate 失效
标题翻译：使用分子筛 - 钯 - 铂催化剂在基材上从含氧废气中除去烃类碳氧化物和氮氧化物的方法
公开(公告)号：US5292991A
公开(公告)日：1994-03-08
申请号：US29147
申请日：1993-03-10
申请人： Irwin M. Lachman , Mallanagouda D. Patil , Louis S. Socha, Jr. , Srinivas H. Swaroop , Raja R. Wusirika
发明人： Irwin M. Lachman , Mallanagouda D. Patil , Louis S. Socha, Jr. , Srinivas H. Swaroop , Raja R. Wusirika
IPC分类号： B01D53/94 , B01J29/068 , B01J37/02 , C07C7/152 , B01J8/00 , B01J29/06 , C07C7/00
CPC分类号： B01D53/945 , B01J29/068 , B01J37/0246 , Y02T10/22
摘要： A process of using a catalyst system for the oxidation of hydrocarbons, carbon monoxide, and the reduction of nitrogen oxides is provided. The unique synergy of the catalyst system, a combination of molecular sieves and noble metals, provides a system that partially or entirely replaces the need for rhodium as a catalyst in three way catalyst systems.
摘要翻译：提供了使用催化剂体系来进行烃的氧化，一氧化碳和还原氮氧化物的方法。催化剂体系（分子筛和贵金属的组合）的独特协同作用提供了一种系统，其部分或全部替代了在三元催化剂体系中作为催化剂的铑的需要。

5. 发明授权

US5168085A Multi-stage TWC system 失效
标题翻译：多级TWC系统
公开(公告)号：US5168085A
公开(公告)日：1992-12-01
申请号：US703201
申请日：1991-05-20
申请人： William P. Addiego , Srinivas H. Swaroop , Jimmie L. Williams , Raja R. Wusirika
发明人： William P. Addiego , Srinivas H. Swaroop , Jimmie L. Williams , Raja R. Wusirika
IPC分类号： B01D53/94 , B01J23/63 , B01J29/44 , B01J29/74 , F01N3/10 , F01N3/28
CPC分类号： B01D53/9459 , B01D53/944 , B01D53/945 , B01D2255/1021 , B01D2255/1023 , B01D2255/1025 , B01D2255/504 , Y02T10/22
摘要： Multi-stage catalytic systems and methods are provided for converting NO.sub.x, CO, and hydrocarbons in a mixture, to innocuous products. The systems include first and second stages, each with substrate and catalyst. The mixture is contacted with the first stage for conversion of the major portion of the NO.sub.x and a portion of the CO and hydrocarbons. The output is contacted with the second stage to for conversion of CO and hydrocarbons. In one system, the first stage catalyst consists essentially of rhodium and a zeolite; the second stage catalyst comprises a noble metal including platinum and/or palladium, and a support. The mixture has a mole ratio of reducing to oxidizing agents of at least 0.8. Low ammonia is generated. In another system, the first stage substrate is made of material capable of being heated to at least 150.degree. C. in no more than about 20 seconds, has heating means for doing same, and is at this temperature at least part of the time of contact with the mixture. The first stage catalyst comprises a support and rhodium with optionally platinum and/or palladium. The second stage catalyst comprises a support, and platinum and/or palladium, and optionally rhodium. Most of the rhodium is in the first stage; most of the platinum and/or palladium is in the second stage. At least 70% by volume of the NO.sub.x, CO, and hydrocarbons is converted. The weight ratio of Pt and/or Pd:Rh in each system is at least about 15:1.

6. 发明授权

US4992233A Sintering metal powders into structures without sintering aids 失效
标题翻译：将金属粉末烧结到没有烧结助剂的结构中
公开(公告)号：US4992233A
公开(公告)日：1991-02-12
申请号：US219986
申请日：1988-07-15
申请人： Srinivas H. Swaroop , Raja R. Wusirika
发明人： Srinivas H. Swaroop , Raja R. Wusirika
IPC分类号： F01N3/02 , B01D39/20 , B01D53/94 , B22F3/11 , B22F5/00 , C22C33/02 , F01N3/022 , F01N3/28
CPC分类号： C22C33/0278 , B01D39/2034 , B01D53/945 , B22F3/1115 , F01N3/022 , F01N3/2803 , B22F2998/10 , B22F2999/00 , F01N2330/14 , F01N2530/24 , Y02T10/20 , Y02T10/22
摘要： Sintering metal powder in inert and/or reducing atmosphere has been found to result in a hard porous metal structure without the use of sintering aids. The oxidation resistance of the structure can be enhanced by the firing process comprised of the following steps: oxidation, reduction, and then inert gas sintering.

7. 发明授权

US5447694A Exhaust gas conversion method and apparatus using thermally stable zeolites 失效
标题翻译：使用热稳定沸石的废气转化方法和装置
公开(公告)号：US5447694A
公开(公告)日：1995-09-05
申请号：US183472
申请日：1994-01-18
申请人： Srinivas H. Swaroop , Raja R. Wusirika
发明人： Srinivas H. Swaroop , Raja R. Wusirika
IPC分类号： B01D53/72 , B01D53/04 , B01D53/86 , B01D53/94 , F01N3/08 , F01N3/20 , F01N3/32 , F01N13/02 , B01D53/56
CPC分类号： B01D53/945 , B01D53/0454 , B01D53/9481 , F01N13/009 , F01N13/0097 , F01N3/0814 , F01N3/0835 , F01N3/0871 , F01N2250/12 , F01N2370/24 , F01N2570/14 , F01N3/20 , F01N3/32 , Y02T10/22
摘要： A system and method are disclosed for converting exhaust gas which comprises NO.sub.x, CO, and hydrocarbons, to innocuous products. Exhaust gas is contacted in undiverted flow with a zeolite suitable for adsorption of hydrocarbons, and with a main catalyst suitable for conversion of NO.sub.x, CO, and hydrocarbons to innocuous products. Adsorption occurs when the temperature of the zeolite is suitable therefor. Conversion occurs when the temperature of the main catalyst is suitable therefor. The zeolite and main catalyst are connected directly to one another, that is, in-line, without by-pass valving. The zeolite can be Y zeolite, Beta, ZSM-5, and combinations thereof, and has a SiO.sub.2 to Al.sub.2 O.sub.3 mole ratio of no greater than about 200, and is ion exchanged with a metal which can be rare earth, chromium, and combinations thereof.
摘要翻译：公开了一种用于将包含NOx，CO和烃的废气转化为无害产品的系统和方法。废气以适合于吸附烃的沸石和适用于将NOx，CO和烃转化为无害产品的主催化剂以未流动的流动接触。当沸石的温度适合时，会发生吸附。当主催化剂的温度适合时，发生转化。沸石和主催化剂彼此直接连接，即直列连接，无旁通阀。沸石可以是Y沸石，β，ZSM-5及其组合，并且SiO 2与Al 2 O 3摩尔比不大于约200，并与可以是稀土，铬及其组合的金属进行离子交换。

8. 发明授权

US5244852A Molecular sieve-palladium-platinum catalyst on a substrate 失效
标题翻译：分子筛 - 钯 - 铂催化剂在基材上
公开(公告)号：US5244852A
公开(公告)日：1993-09-14
申请号：US857738
申请日：1992-03-26
申请人： Irwin M. Lachman , Mallanagouda D. Patil , Louis S. Socha, Jr. , Srinivas H. Swaroop , Raja R. Wusirika
发明人： Irwin M. Lachman , Mallanagouda D. Patil , Louis S. Socha, Jr. , Srinivas H. Swaroop , Raja R. Wusirika
IPC分类号： B01D53/94 , B01J29/068 , B01J37/02
CPC分类号： B01D53/945 , B01J29/068 , B01J37/0246 , Y02T10/22
摘要： A catalyst system for the oxidation of hydrocarbons, carbon monoxide, and the reduction of nitrogen oxides is provided. The unique synergy of the catalyst system, a combination of molecular sieves and noble metals, provides a system that partially or entirely replaces the need for rhodium as a catalyst in three way catalyst systems.
摘要翻译：提供了一种用于氧化烃，一氧化碳和还原氮氧化物的催化剂体系。催化剂体系（分子筛和贵金属的组合）的独特协同作用提供了一种系统，其部分或全部替代了在三元催化剂体系中作为催化剂的铑的需要。

9. 发明授权

US5234876A Thermally stable chromium-exchanged zeolites and method of making same 失效
标题翻译：热稳定的铬交换沸石及其制备方法
公开(公告)号：US5234876A
公开(公告)日：1993-08-10
申请号：US963602
申请日：1992-10-20
申请人： Srinivas H. Swaroop , Raja R. Wusirika
发明人： Srinivas H. Swaroop , Raja R. Wusirika
IPC分类号： B01J29/072 , B01J29/14
CPC分类号： B01J29/146 , B01J29/072
摘要： Thermally stable Cr-zeolites and Cu-Cr-zeolites, and methods of making same are disclosed. The zeolites have a SiO.sub.2 to Al.sub.2 O.sub.3 mole ratio of about 3 to about 200, and an initial alkali content of less than about about 0.5% by weight based on the alkali oxide. Chromium ions are exchanged into the zeolite to produce Cr-zeolite in which the Cr level is greater than about 0.5% by weight. Copper and chromium ions are provided exchanged on a zeolite to produce Cu-Cr-zeolite. The respective Cr-exchanged zeolites are heat-treated to produce the thermally stable zeolites wherein the BET surface area upon exposure to temperatures of up to about 1000.degree. C. is at least about 50% of the BET surface area of the respective thermally stable zeolites at about room temperature, prior to the exposure to temperatures of up to about 1000.degree. C.
摘要翻译：公开了热稳定的Cr-沸石和Cu-Cr-沸石及其制备方法。沸石的SiO 2与Al 2 O 3摩尔比为约3至约200，初始碱含量小于约0.5重量％，基于碱金属氧化物。将铬离子交换到沸石中以产生其中Cr含量大于约0.5重量％的Cr-沸石。在沸石上交换铜和铬离子以产生Cu-Cr-沸石。相应的Cr交换的沸石被热处理以产生热稳定的沸石，其中暴露于高达约1000℃的温度下的BET表面积为相应热稳定沸石的BET表面积的至少约50％在约室温下，暴露于高达约1000℃的温度之前。

10. 发明授权

US5449541A Electrically heatable honeycomb structures 失效
标题翻译：电加热蜂窝结构
公开(公告)号：US5449541A
公开(公告)日：1995-09-12
申请号：US119833
申请日：1993-09-13
申请人： G. Daniel Lipp , Srinivas H. Swaroop , Donald M. Trotter , Raja R. Wusirika
发明人： G. Daniel Lipp , Srinivas H. Swaroop , Donald M. Trotter , Raja R. Wusirika
IPC分类号： B01D29/31 , B01D46/00 , B01D46/24 , F01N3/022 , F01N3/027 , F01N3/20 , F01N3/28 , B32B3/12
CPC分类号： B01D46/2418 , B01D29/31 , B01D46/0032 , F01N3/0222 , F01N3/027 , F01N3/2026 , F01N3/2807 , B01D2046/2481 , B01D2046/2492 , B01D46/2459 , Y02T10/26 , Y10T428/24149
摘要： Electrically conductive honeycomb structures are provided for use as catalytic converters, pre-heaters for catalytic converters, or particulate filters. The honeycomb structures are composed of subunits which are arranged to produce a serpentine conductive path through the honeycomb. The serpentine path gives the honeycomb an increased electrical resistance so that elevated temperatures can be achieved with less current. The subunits allow the serpentine current path to be produced without any slitting or cutting of the honeycomb.
摘要翻译：提供导电蜂窝结构用作催化转化器，用于催化转化器的预热器或微粒过滤器。蜂窝结构由被设置成产生通过蜂窝的蛇形导电路径的子单元组成。蛇纹路径使蜂窝体具有增加的电阻，从而可以以更少的电流实现升高的温度。子单元允许在没有任何切割或切割蜂窝体的情况下产生蛇形电流路径。

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