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1. 发明授权

US06171557B2 System for exhaust gas purification 失效
标题翻译：废气净化系统
公开(公告)号：US06171557B2
公开(公告)日：2001-01-09
申请号：US09045124
申请日：1998-03-20
申请人： Akira Takahashi , Naomi Noda , Takuya Hiramatsu , Yukinari Shibagaki
发明人： Akira Takahashi , Naomi Noda , Takuya Hiramatsu , Yukinari Shibagaki
IPC分类号： B01D5394
CPC分类号： B01D53/945 , B01D53/9472 , B01D53/9486 , B01D2253/108 , B01D2255/1021 , B01D2255/1023 , B01D2255/1025 , B01D2255/104 , B01D2255/106 , B01D2255/2065 , B01D2255/20761 , B01J20/186 , B01J23/38 , Y02T10/22
摘要： A system for exhaust gas purification disposed in the exhaust pipe of an internal combustion engine, which includes a zeolite as adsorbent component capable of adsorbing the hydrocarbons present in the exhaust gas emitted from the engine and a catalyst capable of reducing the harmful substances present in the exhaust gas; the system satisfies the following conditions: a/c=3 to 50 cc/g, wherein a is the total volume of the pores of diameters of 10 Å or smaller possessed by the zeolite as measured using N2, and c is the total amount of the hydrocarbons emitted from the engine during the period of 140 seconds from the start of the engine when the engine is operated in accordance with the LA-4 mode of FTP, thereby the adsorption capacity of the zeolite used as a HC adsorbent is optimized against the amount of the HC discharged from an engine during a certain period of the cold start so as to adsorb and purify the HC effectively.
摘要翻译：一种排气净化系统，其设置在内燃机的排气管内，该系统包括沸石作为能够吸附从发动机排出的废气中存在的烃的吸附剂成分，以及能够减少存在于发动机中的有害物质的催化剂废气; 该系统满足以下条件：a / c = 3〜50cc / g，其中a为使用N 2测定的沸石所具有的直径为10或更小的孔的总体积，c为当发动机根据FTP的LA-4模式操作时，在发动机起动140秒之内从发动机排出的碳氢化合物，从而优化用作HC吸附剂的沸石的吸附能力在冷启动的一定时间期间从发动机排出的HC的量，以有效地吸附和净化HC。

2. 发明授权

US06517785B2 System for exhaust gas purification 失效
标题翻译：废气净化系统
公开(公告)号：US06517785B2
公开(公告)日：2003-02-11
申请号：US09120888
申请日：1998-07-23
申请人： Naomi Noda , Yukinari Shibagaki , Akira Takahashi , Hiroshige Mizuno
发明人： Naomi Noda , Yukinari Shibagaki , Akira Takahashi , Hiroshige Mizuno
IPC分类号： B01D5394
CPC分类号： F01N3/0835 , B01D53/9486 , B01D2253/108 , B01D2255/1021 , B01D2255/1023 , B01D2255/1025 , F01N3/0814
摘要： A system for exhaust gas purification disposed in the exhaust pipe of an internal combustion engine, includes (1) an adsorbent comprising a monolithic carrier and (2) an adsorbent component having a hydrocarbon adsorptivity, loaded on the carrier, and a catalyst comprising a monolithic carrier and a catalyst component loaded on the carrier, having a purifiability for the harmful substances present in the exhaust gas emitted from the engine. The catalyst is provided downstream of the adsorbent in the flow direction of the exhaust and it can remove the hydrocarbons generated during engine cold gas. The adsorbent has a sectional shape satisfying the following relation: 1.2≦(major axis)/(minor axis)≦6.5 This system enables the desorption of hydrocarbons from the adsorbent in a longer time and can remove the hydrocarbon generated during engine cold start at a higher purification ratio.
摘要翻译：一种设置在内燃机的排气管中的废气净化系统，包括（1）包含整体式载体的吸附剂和（2）负载在载体上的具有烃吸附性的吸附剂成分，以及包含单片载体和负载在载体上的催化剂组分，对从发动机排放的废气中存在的有害物质具有可净化性。催化剂在排气的流动方向上设置在吸附剂的下游，并且可以除去在发动机冷气体期间产生的烃。吸附剂具有满足以下关系的截面形状：该系统能够在更长时间内从吸附剂中解吸烃，并且可以以较高的净化比除去发动机冷起动期间产生的烃。

3. 发明授权

US06139808A Catalyst for exhaust gas purification and system for exhaust gas purification 失效
标题翻译：废气净化催化剂和废气净化系统
公开(公告)号：US06139808A
公开(公告)日：2000-10-31
申请号：US985523
申请日：1997-12-05
申请人： Hiroshige Mizuno , Naomi Noda , Yukinari Shibagaki , Akira Takahashi
发明人： Hiroshige Mizuno , Naomi Noda , Yukinari Shibagaki , Akira Takahashi
IPC分类号： B01D53/86 , B01D53/94 , B01J23/58 , B01J37/02 , B01D53/34 , B01D53/92 , F01N3/20
CPC分类号： B01D53/945 , B01J23/58 , B01J37/0215 , Y02T10/22
摘要： A catalyst for exhaust gas purification is capable of purifying the hydrocarbons, nitrogen oxides and carbon monoxide present in the exhaust gas discharged from an internal combustion engine. The catalyst has a carrier and a catalyst layer containing at least one kind of noble metal, Ba and Cs, formed on the carrier. This catalyst for exhaust gas purification is improved in hydrocarbon purification ability for a low-temperature fuel-rich exhaust gas (such as exhaust gas emitted during cold start) of automobile.
摘要翻译：用于排气净化的催化剂能够净化从内燃机排出的废气中存在的烃，氮氧化物和一氧化碳。催化剂具有载体和催化剂层，该载体和载体上形成有至少一种贵金属Ba和Cs。用于废气净化的催化剂对于汽车的低温富燃料废气（例如冷启动时排放的废气）的烃净化能力提高。

4. 发明授权

US06350416B2 System for exhaust gas purification 失效
标题翻译：废气净化系统
公开(公告)号：US06350416B2
公开(公告)日：2002-02-26
申请号：US09093789
申请日：1998-06-09
申请人： Naomi Noda , Yukinari Shibagaki , Akira Takahashi , Hiroshige Mizuno
发明人： Naomi Noda , Yukinari Shibagaki , Akira Takahashi , Hiroshige Mizuno
IPC分类号： B01D5334
CPC分类号： B01D53/945 , B01D2255/912 , F01N3/0814 , F01N3/0835 , F01N13/009 , Y02T10/22
摘要： A system for exhaust gas purification disposed in the exhaust pipe of an internal combustion engine, includes an adsorbent formed by loading, on a monolithic carrier, (1) a zeolite containing at least one kind of ion of an element having an electronegativity of 1.40 or more and (2) a catalyst material formed by loading at least one kind of noble metal selected from Pt, Pd and Rh on a heat-resistant inorganic oxide, and at least one loaded carrier formed by loading, on a monolithic carrier, a catalyst component having a purifiability for the harmful substances present in the exhaust gas emitted from the engine and/or an adsorbent component having an adsorptivity for the hydrocarbons also present in the exhaust gas, the loaded carrier being provided upstream of the adsorbent in the flow direction of the exhaust gas and having a total volume of 0.6 l or more. In this system for exhaust gas purification, the thermal deterioration of the adsorbent is reduced because there is used an adsorbent of higher HC desorption start temperature and because the thermal load applied to the adsorbent is decreased by the use of a particular means.
摘要翻译：一种设置在内燃机的排气管中的废气净化系统，包括通过在整体式载体上装载（1）含有至少一种具有1.40的电负性的元素的离子的沸石形成的吸附剂，或更多和（2）通过将选自Pt，Pd和Rh中的至少一种贵金属负载在耐热无机氧化物上形成的催化剂材料，以及通过在整体式载体上负载催化剂形成的至少一种负载载体具有对从发动机排出的排气中存在的有害物质具有可净化性的成分和/或对废气中也存在的具有对烃的吸附性的吸附剂成分，负载载体在吸附剂的流动方向上游侧设置废气，总体积为0.6l以上。在这种废气净化系统中，由于使用HC解吸开始温度较高的吸附剂，因为通过使用特定的方法降低了对吸附剂的热负荷，所以吸附剂的热劣化降低。

5. 发明授权

US06500392B2 Catalyst for exhaust gas purification and system for exhaust gas purification 失效
标题翻译：废气净化催化剂和废气净化系统
公开(公告)号：US06500392B2
公开(公告)日：2002-12-31
申请号：US08985206
申请日：1997-12-04
申请人： Hiroshige Mizuno , Naomi Noda , Yukinari Shibagaki , Akira Takahashi
发明人： Hiroshige Mizuno , Naomi Noda , Yukinari Shibagaki , Akira Takahashi
IPC分类号： B01D5392
CPC分类号： B01D53/945 , B01J23/58 , B01J37/0248 , F01N3/28 , Y02A50/2324 , Y02T10/22
摘要： A catalyst for exhaust gas purification is capable of purifying the hydrocarbons, nitrogen oxides and carbon monoxide present in the exhaust gas discharged from an internal combustion engine. The catalyst has a monolithic carrier and a catalyst layer containing Pd, Ba and a heat-resistant inorganic oxide, formed on the carrier. The amount of Pd supported on monolithic carrier is 100-300 g per ft3 of monolithic carrier (3.53×10−3 to 1.06×10−2 g per cc of monolithic carrier), the amount of Ba supported on monolithic carrier is 0.010-0.060 g per cc of monolithic carrier in terms of BaO, and the weight ratio of Pd and Ba as expressed as BaO is 1:2 to 1:10. This catalyst for exhaust gas purification is superior particularly in hydrocarbon purification for a low-temperature fuel-rich exhaust gas (such as exhaust gas emitted during cold start) of automobile.
摘要翻译：用于排气净化的催化剂能够净化从内燃机排出的废气中存在的烃，氮氧化物和一氧化碳。催化剂具有整体式载体和在载体上形成的含有Pd，Ba和耐热无机氧化物的催化剂层。在整体式载体上负载的Pd的量为100-300g / ft 3的整体式载体（3.53×10 -3至1.06×10 -2 g / cc的整体式载体），负载在单片载体上的Ba的量为0.010-0.060g / cc的整体载体，BaO表示的Pd和Ba的重量比为1:2〜1:10。用于排气净化的催化剂在汽车的低温富油废气（例如冷启动时排出的废气）的碳氢化合物净化中尤其优异。

6. 发明授权

US6029441A Method for exhaust gas purification and system for exhaust gas purification used therein 失效
标题翻译：废气净化方法及废气净化系统
公开(公告)号：US6029441A
公开(公告)日：2000-02-29
申请号：US985205
申请日：1997-12-04
申请人： Hiroshige Mizuno , Naomi Noda , Yukinari Shibagaki , Akira Takahashi
发明人： Hiroshige Mizuno , Naomi Noda , Yukinari Shibagaki , Akira Takahashi
IPC分类号： B01D53/34 , B01D53/72 , B01D53/86 , B01D53/94 , B01J20/18 , B01J23/40 , F01N3/08 , F01N3/20 , F01N3/22 , F01N13/02
CPC分类号： F01N3/0835 , B01D53/9486 , F01N13/009 , F01N3/0814 , F01N3/0871 , F01N3/2013 , F01N3/22 , B01D2255/2045 , B01D2255/2047 , B01D2255/20738 , B01D2255/20784 , F01N2250/12 , Y02T10/26
摘要： A method for exhaust gas purification using an exhaust gas purification system including (a) an adsorbent for adsorbing hydrocarbons in internal combustion engine exhaust gas provided in the engine exhaust pipe, (b) at least one catalyst for reducing harmful substances present in the exhaust gas, provided in the exhaust pipe upstream of the adsorbent in the flow direction of the exhaust gas, (c) at least one catalyst for reducing harmful substances present in the exhaust gas, provided in the exhaust pipe down-stream of the adsorbent in the flow direction of the exhaust gas, (d) a first inlet for introduction of secondary air into exhaust gas, formed in the exhaust pipe upstream of the most downstream catalyst of the catalyst (b), and (e) a second inlet for introduction of secondary air into exhaust gas, formed in the exhaust pipe between the catalyst (b) and the most downstream catalyst of the catalyst (c). Secondary air is introduced from the first inlet at a time from engine start to activation of catalyst (b); when catalyst (b) has been activated, stopping secondary air introduction from the first inlet; meanwhile, introducing secondary air from the second inlet while the hydrocarbons of exhaust gas adsorbed by adsorbent (a) are desorbed therefrom as its temperature rises by the heat of the exhaust gas. This method effectively purifies the hydrocarbons discharged from an internal combustion engine in a large amount during cold start, without adversely affecting the purification of also-discharged NOx.
摘要翻译：一种排气净化系统的废气净化方法，所述排气净化系统包括：（a）在所述发动机排气管内设置的内燃机废气中吸附烃的吸附剂，（b）至少一种用于还原废气中存在的有害物质的催化剂，设置在排气管的上游侧的吸附剂上游侧，（c）至少一个催化剂，其用于减少排气中存在的有害物质，该催化剂设置在流体中的吸附剂的下游侧的排气管（d）用于将二次空气引入排气中的第一入口，形成在催化剂（b）的最下游催化剂上游的排气管中，和（e）用于引入二次空气的第二入口在催化剂（b）和催化剂（c）的最下游催化剂之间的排气管中形成空气。从发动机启动到催化剂（b）活化的时候，从第一入口引入二次空气; 当催化剂（b）已经被活化时，停止从第一入口引入二次空气; 同时，当吸附剂（a）吸附的废气的碳氢化合物随着废气的热量升高而从第二入口引入二次空气时，其被排出。该方法在冷起动时有效地净化从内燃机排出的烃，而不会对排出的NOx的净化产生不利影响。

7. 发明授权

US5884473A System for exhaust gas purification and method for exhaust gas purification using said system 失效
标题翻译：废气净化系统及使用该系统的废气净化方法
公开(公告)号：US5884473A
公开(公告)日：1999-03-23
申请号：US668208
申请日：1996-06-19
申请人： Naomi Noda , Yukinari Shibagaki , Hiroshige Mizuno , Akira Takahashi
发明人： Naomi Noda , Yukinari Shibagaki , Hiroshige Mizuno , Akira Takahashi
IPC分类号： B01D53/72 , B01D53/56 , B01D53/81 , B01D53/86 , B01D53/94 , B01J23/56 , B01J23/58 , B01J23/63 , F01N3/08 , F01N3/28 , F01N3/10 , B01J8/02
CPC分类号： B01D53/9481 , B01D53/945 , B01J23/58 , B01J23/63 , F01N3/0835 , F01N3/0842 , F01N2240/18 , F01N2570/12 , Y02T10/22
摘要： A system for exhaust gas purification disposed in the exhaust pipe of an internal combustion engine, includes followings (i) a catalyst giving an excellent light-off performance at low temperatures, including a carrier and a catalyst layer supported thereon, the catalyst layer including a precious metal and a substance having an electron donatability and/or a nitrogen dioxide absorbability and releasability, and (ii) an adsorbent comprising a carrier and an adsorbent layer having a hydrocarbon adsorbability, supported on the carrier. This system for exhaust gas purification can effectively purify the harmful substances contained in the exhaust gases discharged from internal combustion engines of automobiles, etc., particularly the hydrocarbons discharged in a large amount from a gasoline engine during cold start.
摘要翻译：一种设置在内燃机的排气管内的废气净化系统，包括以下（i）在低温下具有优异的起火性能的催化剂，其包括载体和负载在其上的催化剂层，所述催化剂层包括贵金属和具有电子不足性和/或二氧化氮吸收性和脱模性的物质，和（ii）负载在载体上的载体和具有烃吸附性的吸附剂的吸附剂。这种废气净化系统能够有效地净化汽车内燃机等排出的废气中所含的有害物质，特别是在冷起动时从汽油发动机大量排出的烃。

8. 发明授权

US07186386B1 System for exhaust gas purification 失效
标题翻译：废气净化系统
公开(公告)号：US07186386B1
公开(公告)日：2007-03-06
申请号：US09524575
申请日：2000-03-13
申请人： Takuya Hiramatsu , Akira Takahashi , Naomi Noda , Junichi Suzuki
发明人： Takuya Hiramatsu , Akira Takahashi , Naomi Noda , Junichi Suzuki
IPC分类号： B01D50/00
CPC分类号： F01N3/0835 , B01D53/9486 , B01D2253/108 , B01D2255/1021 , B01D2255/1023 , B01D2255/1025 , F01N3/0814 , F01N2240/18 , F01N2250/12
摘要： A system for exhaust gas purification includes at least one adsorbent capable of adsorbing harmful substances such as hydrocarbons and the like in exhaust gas and at least one catalyst containing a catalyst component, capable of reducing said harmful substances, both provided at an in-line position of exhaust pipe of internal combustion engine. In the system, the hydrocarbons, etc. in the exhaust gas emitted during cold engine start up of internal combustion engine are adsorbed by the adsorbent and the adsorbed hydrocarbons, etc. are desorbed from the adsorbent with the temperature rise of the adsorbent caused by the heat of the exhaust gas and are burnt on the catalyst. The adsorbent contains a H type β-zeolite having a SiO2/Al2O3 ratio of 100 or more and can maintain good adsorption capability even when exposed to an exhaust gas of 750° C. or more form an internal combustion engine. This system for exhaust gas purification can effectively purify harmful substances in exhaust gas, particularly the hydrocarbons, etc. emitted in large amounts during cold engine start up.
摘要翻译：废气净化系统包括至少一种能够吸附排气中的烃等有害物质的吸附剂，以及至少含有催化剂成分的能够还原所述有害物质的催化剂，两者均设置在排列位置的内燃机排气管。在该系统中，在内燃机的冷启动发动机期间排出的废气中的碳氢化合物等被吸附剂吸附，吸附的烃等从吸附剂中脱附，伴随着吸附剂的升温废气的热量并在催化剂上燃烧。该吸附剂含有具有100或更大的SiO 2 / Al 2 O 3比率的H型β-沸石，并且可以保持良好的吸附能力即使暴露于750℃以上的废气也形成内燃机。该排气净化系统能够有效地净化排气中的有害物质，特别是发动机冷启动时大量排放的烃类等。

9. 发明授权

US06602822B2 Catalyst for exhaust gas purification and exhaust gas purification system using the same 失效
标题翻译：用于废气净化的催化剂和使用其的废气净化系统
公开(公告)号：US06602822B2
公开(公告)日：2003-08-05
申请号：US09271155
申请日：1999-03-17
申请人： Naomi Noda , Yukinari Shibagaki , Junichi Suzuki
发明人： Naomi Noda , Yukinari Shibagaki , Junichi Suzuki
IPC分类号： B01J2344
CPC分类号： B01D53/9486 , B01D53/945 , B01D2255/1021 , B01J23/44 , B01J23/63 , B01J37/0248 , F01N3/0814 , F01N3/10 , F01N3/30 , F01N13/009 , F01N2410/06 , F01N2410/12 , Y02T10/22
摘要： A catalyst for exhaust gas purification includes (1) a monolithic carrier having passages and (2) palladium-loaded alumina obtained by immersing alumina in a palladium solution and then firing the resulting alumina and loaded on the monolithic carrier as a catalyst layer. In the catalyst, the catalyst layer loaded on the partition walls of the passages of the monolithic carrier has a thickness of 5 to 100 &mgr;m and the palladium/alumina (Pd/Al2O3) weight ratio in the catalyst layer is 0.03 to 0.30. This catalyst is a Pd-only catalyst improved in hydrocarbon purifiability during the cold start of engine.
摘要翻译：用于废气净化的催化剂包括（1）具有通道的整体式载体和（2）通过将氧化铝浸入钯溶液中而获得的负载钯的氧化铝，然后焙烧所得氧化铝并作为催化剂层负载在整体式载体上。在催化剂中，负载在整体式载体的通道的分隔壁上的催化剂层的厚度为5〜100μm，催化剂层中的钯/氧化铝（Pd / Al 2 O 3）重量比为0.03〜0.30。该催化剂是在发动机冷起动期间提高烃纯化性能的仅Pd催化剂。

10. 发明授权

US07887761B2 Honeycomb catalyst and manufacturing method thereof 有权
标题翻译：蜂窝状催化剂及其制造方法
公开(公告)号：US07887761B2
公开(公告)日：2011-02-15
申请号：US11907371
申请日：2007-10-11
申请人： Akira Takahashi , Naomi Noda , Yukio Miyairi , Toshio Yamada
发明人： Akira Takahashi , Naomi Noda , Yukio Miyairi , Toshio Yamada
IPC分类号： B01D50/00
CPC分类号： B01J35/04 , B01D53/9468 , B01D2255/50 , B01D2255/9155 , B01D2257/404 , B01D2257/502 , B01D2257/702 , B01D2257/7022 , B01J23/40 , B01J35/002 , B01J37/02 , F01N3/035 , F01N3/2828 , Y02T10/22
摘要： This invention provides a honeycomb catalyst having an excellent purification efficiency and a small pressure loss and can be mounted even in a limited space, the honeycomb catalyst comprising: porous partition walls 4 having plural pores 25, which are arranged to form plural cells 3 allowing communication between two end faces; plugging portions being arranged to plug the cells 3 in one of the end faces; and catalytically active components 5, 15 loaded on surfaces of partition walls 4 and inner surfaces of pores 25, wherein many catalytically active component-loading pores 35 through which a gas can pass are formed in partition walls 4, and a ratio of a mass (MW) of the catalytically active component loaded on the surfaces of partition walls 4 to a mass (MP) of the catalytically active component 5 loaded on the inner surfaces of the pores 25 is (MW):(MP)=1:3 to 3:1.
摘要翻译：本发明提供了具有优异的净化效率和小的压力损失的蜂窝状催化剂，并且即使在有限的空间中也能够安装，蜂窝体催化剂包括：具有多个孔25的多孔分隔壁4，其被布置成形成允许通信的多个单元3 两个端面之间; 堵塞部分布置成将单元3插入其中一个端面; 以及负载在分隔壁4的表面和孔25的内表面上的催化活性组分5,15，其中在分隔壁4中形成有气体可以通过的许多催化活性组分负载孔35和质量比负载在分隔壁4的表面上的催化活性组分与负载在孔25的内表面上的催化活性组分5的质量（MP）的摩尔比（MW）:( MP）= 1:3至3 ：1。

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