公开(公告)号：US08938953B2

公开(公告)日：2015-01-27

申请号：US12607420

申请日：2009-10-28

申请人： Kinichi Iwachido ,  Ken Tanabe ,  Takayuki Onodera ,  Masanori Ide ,  Hiroaki Ohhara ,  Mariko Ono ,  Akihisa Okumura ,  Masao Hori

发明人： Kinichi Iwachido ,  Ken Tanabe ,  Takayuki Onodera ,  Masanori Ide ,  Hiroaki Ohhara ,  Mariko Ono ,  Akihisa Okumura ,  Masao Hori

IPC分类号： F01N3/10 ,  F01N3/08 ,  B01D53/94 ,  B01J23/58 ,  B01J23/63 ,  B01J37/02 ,  F01N13/00 ,  B01J35/00 ,  B01J35/04

CPC分类号： F01N3/0842 ,  B01D53/9422 ,  B01D53/945 ,  B01D53/9477 ,  B01D2255/1021 ,  B01D2255/2022 ,  B01D2255/204 ,  B01D2255/206 ,  B01D2255/20707 ,  B01D2255/50 ,  B01D2255/91 ,  B01D2255/9205 ,  B01D2258/012 ,  B01D2258/014 ,  B01J23/58 ,  B01J23/63 ,  B01J35/0013 ,  B01J35/04 ,  B01J37/0246 ,  F01N3/0807 ,  F01N3/101 ,  F01N13/009 ,  F01N2370/02 ,  Y02T10/22 ,  Y02T10/24

摘要： A method of purifying an exhaust gas, includes: disposing a NOx trapping catalyst in an exhaust pipe of an internal combustion engine, the NOx trapping catalyst including: a metal substrate including cells, a corner portion of each of cells having an acute angle; and a catalyst layer supported in the metal substrate and including a noble metal, a heat-resistant inorganic oxide and a NOx trapping material, the catalyst layer having pores formed by addition of a pore formation promoting material, and the NOx trapping catalyst: adsorbing NOx in the exhaust gas when an exhaust air-fuel ratio is in a lean state; and desorbing and reducing the adsorbed NOx when the exhaust air-fuel ratio is in a stoichiometric state or a rich state; and removing the NOx by the exhaust air-fuel ratio being shifted between the lean state and the rich state.

摘要翻译： 一种排气净化方法，其特征在于，包括：在内燃机的排气管内配置NOx捕捉催化剂，所述NOx捕集催化剂包括：包含电池的金属基板，具有锐角的每个电池的角部; 以及负载在所述金属基板中并且包含贵金属，耐热无机氧化物和NOx捕获材料的催化剂层，所述催化剂层具有通过添加形成致孔材料形成的孔，并且所述NOx捕集催化剂：吸附NOx 在排气空燃比处于稀薄状态的排气中; 并且当排气空燃比处于化学计量状态或浓态时解吸和还原吸附的NOx; 并且通过在稀薄状态和浓态之间移动排气空燃比来除去NOx。

公开(公告)号：US20110200504A1

公开(公告)日：2011-08-18

申请号：US13124005

申请日：2009-10-16

申请人： Mariko Ono ,  Akihisa Okumura

发明人： Mariko Ono ,  Akihisa Okumura

IPC分类号： B01D53/86 ,  B01J23/10 ,  B01J23/30 ,  B01J23/34 ,  B01J23/54 ,  B01J37/08

CPC分类号： B01J35/10 ,  B01D53/9422 ,  B01D2255/10 ,  B01D2255/202 ,  B01D2255/204 ,  B01D2255/2065 ,  B01D2255/2073 ,  B01D2255/20776 ,  B01D2255/91 ,  B01D2255/9202 ,  B01D2257/404 ,  B01D2258/012 ,  B01J23/002 ,  B01J23/10 ,  B01J23/63 ,  B01J35/002 ,  B01J35/04 ,  B01J37/0215 ,  B01J2523/00 ,  C01F17/0043 ,  C01P2004/10 ,  C01P2004/61 ,  F01N3/0842 ,  Y02T10/24 ,  B01J2523/13 ,  B01J2523/31 ,  B01J2523/3712 ,  B01J2523/828

摘要： A catalyst for exhaust gas purification of the present invention contains the thin-plate-like ceria (CeO2) as a catalytic active component. According to the catalyst for exhaust gas purification of the present invention, among CO, HC, and NOx, which are hazardous components contained in exhaust gas, particularly, NOx, can be removed efficiently. The present invention can be used as, what is called a NOx trapping catalyst, which stores NOx in oxidizing atmosphere, and discharges and reduces NOx in reducing atmosphere.

摘要翻译： 本发明的废气净化用催化剂含有作为催化活性成分的薄板状二氧化铈（CeO 2）。 根据本发明的废气净化用催化剂，能够有效地除去废气中所含的有害成分，特别是NOx的CO，HC，NOx中的任一种。 本发明可以用作在氧化气氛中储存NOx的所谓的NOx捕集催化剂，并且在还原气氛中排放和还原NOx。

公开(公告)号：US20100101212A1

公开(公告)日：2010-04-29

申请号：US12607420

申请日：2009-10-28

申请人： Kinichi Iwachido ,  Ken Tanabe ,  Takayuki Onodera ,  Masanori Ide ,  Hiroaki Ohhara ,  Mariko Ono ,  Akihisa Okumura ,  Masao Hori

发明人： Kinichi Iwachido ,  Ken Tanabe ,  Takayuki Onodera ,  Masanori Ide ,  Hiroaki Ohhara ,  Mariko Ono ,  Akihisa Okumura ,  Masao Hori

IPC分类号： F01N3/20 ,  F01N3/10

CPC分类号： F01N3/0842 ,  B01D53/9422 ,  B01D53/945 ,  B01D53/9477 ,  B01D2255/1021 ,  B01D2255/2022 ,  B01D2255/204 ,  B01D2255/206 ,  B01D2255/20707 ,  B01D2255/50 ,  B01D2255/91 ,  B01D2255/9205 ,  B01D2258/012 ,  B01D2258/014 ,  B01J23/58 ,  B01J23/63 ,  B01J35/0013 ,  B01J35/04 ,  B01J37/0246 ,  F01N3/0807 ,  F01N3/101 ,  F01N13/009 ,  F01N2370/02 ,  Y02T10/22 ,  Y02T10/24

摘要： A method of purifying an exhaust gas, includes: disposing a NOx trapping catalyst in an exhaust pipe of an internal combustion engine, the NOx trapping catalyst including: a metal substrate including cells, a corner portion of each of cells having an acute angle; and a catalyst layer supported in the metal substrate and including a noble metal, a heat-resistant inorganic oxide and a NOx trapping material, the catalyst layer having pores formed by addition of a pore formation promoting material, and the NOx trapping catalyst: adsorbing NOx in the exhaust gas when an exhaust air-fuel ratio is in a lean state; and desorbing and reducing the adsorbed NOx when the exhaust air-fuel ratio is in a stoichiometric state or a rich state; and removing the NOx by the exhaust air-fuel ratio being shifted between the lean state and the rich state.

摘要翻译： 一种排气净化方法，其特征在于，包括：在内燃机的排气管内配置NOx捕捉催化剂，所述NOx捕集催化剂包括：包含电池的金属基板，具有锐角的每个电池的角部; 以及负载在所述金属基板中并且包含贵金属，耐热无机氧化物和NOx捕获材料的催化剂层，所述催化剂层具有通过添加形成致孔材料形成的孔，并且所述NOx捕集催化剂：吸附NOx 在排气空燃比处于稀薄状态的排气中; 并且当排气空燃比处于化学计量状态或浓态时解吸和还原吸附的NOx; 并且通过在稀薄状态和浓态之间移动排气空燃比来除去NOx。

公开(公告)号：US08263009B2

公开(公告)日：2012-09-11

申请号：US12607501

申请日：2009-10-28

申请人： Kinichi Iwachido ,  Takayuki Onodera ,  Masanori Ide ,  Hiroaki Ohhara ,  Mariko Ono ,  Akihisa Okumura ,  Masao Hori

发明人： Kinichi Iwachido ,  Takayuki Onodera ,  Masanori Ide ,  Hiroaki Ohhara ,  Mariko Ono ,  Akihisa Okumura ,  Masao Hori

IPC分类号： B01D50/00

CPC分类号： F01N3/10 ,  B01D53/9422 ,  B01D53/9445 ,  B01D53/9477 ,  B01D2255/1021 ,  B01D2255/1023 ,  B01D2255/1026 ,  B01D2255/202 ,  B01D2255/2022 ,  B01D2255/204 ,  B01D2255/2092 ,  B01D2255/50 ,  B01D2255/91 ,  F01N2570/14 ,  Y02A50/2344 ,  Y02T10/22

摘要： An exhaust gas purifying catalyst which is disposed in an exhaust pipe of an internal combustion engine, includes: a substrate; and a catalyst layer, supported in the substrate and including: noble metals including platinum (Pt) and palladium (Pd); a heat-resistant inorganic oxide; and a NOx trapping material. The exhaust gas purifying catalyst adsorbs NOx in an exhaust gas when an exhaust air-fuel ratio is in a lean state and desorbs and reduces the adsorbed NOx when the exhaust air-fuel ratio is in a stoichiometric state or a rich state. (Pt/Pd) which is a ratio of amount of the platinum (Pt) to amount of the palladium (Pd) is 0.7 or more and less than 1.0.

摘要翻译： 一种设置在内燃机的排气管中的废气净化催化剂，包括：基板; 和催化剂层，其负载在所述基板中，并且包括：包括铂（Pt）和钯（Pd）的贵金属; 耐热无机氧化物; 和NOx捕集材料。 当排气空燃比处于稀薄状态时，排气净化催化剂吸附废气中的NOx，并且当排气空燃比处于化学计量状态或浓态时解吸并还原吸附的NOx。 铂（Pt）与钯（Pd）的量的比例为0.7以上且小于1.0的铂（Pt / Pd）。

公开(公告)号：US20110200506A1

公开(公告)日：2011-08-18

申请号：US13124147

申请日：2009-10-16

申请人： Mariko Ono ,  Akihisa Okumura

发明人： Mariko Ono ,  Akihisa Okumura

IPC分类号： B01D53/94 ,  B01J23/58 ,  B01J23/656 ,  B01J23/652 ,  B01J23/63

CPC分类号： F01N13/16 ,  B01D53/945 ,  B01D2255/1021 ,  B01D2255/2022 ,  B01D2255/2047 ,  B01D2255/9205 ,  B01J21/10 ,  B01J23/002 ,  B01J23/58 ,  B01J23/63 ,  B01J35/04 ,  B01J35/109 ,  B01J2523/00 ,  Y02T10/22 ,  B01J2523/13 ,  B01J2523/22 ,  B01J2523/31 ,  B01J2523/828

摘要： A catalyst for the purification of exhaust gas that can be used to highly efficiently treat an exhaust gas which has moisture and fluctuates between an oxidizing atmosphere and a reducing atmosphere even after the catalyst is exposed to a high temperature is provided. The present invention relates to a catalyst for the purification of exhaust gas having a catalyst layer of catalyst components comprising a noble metal, magnesium oxide, and a refractory inorganic oxide formed on a three-dimensional structure, wherein the catalyst layer has two peaks originated from the magnesium oxide in a pore distribution obtained by mercury intrusion technique.

摘要翻译： 提供了一种用于净化排气的催化剂，其可用于高效地处理即使在催化剂暴露于高温之后也具有湿气并在氧化气氛和还原气氛之间波动的废气。 本发明涉及一种用于净化废气的催化剂，其具有催化剂组分的催化剂层，所述催化剂组分包含在三维结构上形成的贵金属，氧化镁和耐火无机氧化物，其中所述催化剂层具有起源于 通过汞侵入技术获得的孔分布中的氧化镁。

公开(公告)号：US08722001B2

公开(公告)日：2014-05-13

申请号：US13124147

申请日：2009-10-16

申请人： Mariko Ono ,  Akihisa Okumura

发明人： Mariko Ono ,  Akihisa Okumura

IPC分类号： B01D53/56 ,  B01D53/94 ,  B01J8/02 ,  B01J21/04 ,  B01J23/00 ,  B01J23/02 ,  B01J23/06 ,  B01J23/08 ,  B01J23/10 ,  B01J23/40 ,  B01J23/42 ,  B01J23/44 ,  B01J23/56 ,  B01J23/58

CPC分类号： F01N13/16 ,  B01D53/945 ,  B01D2255/1021 ,  B01D2255/2022 ,  B01D2255/2047 ,  B01D2255/9205 ,  B01J21/10 ,  B01J23/002 ,  B01J23/58 ,  B01J23/63 ,  B01J35/04 ,  B01J35/109 ,  B01J2523/00 ,  Y02T10/22 ,  B01J2523/13 ,  B01J2523/22 ,  B01J2523/31 ,  B01J2523/828

摘要： A catalyst for the purification of exhaust gas that can be used to highly efficiently treat an exhaust gas which has moisture and fluctuates between an oxidizing atmosphere and a reducing atmosphere even after the catalyst is exposed to a high temperature is provided. The present invention relates to a catalyst for the purification of exhaust gas having a catalyst layer of catalyst components comprising a noble metal, magnesium oxide, and a refractory inorganic oxide formed on a three-dimensional structure, wherein the catalyst layer has two peaks originated from the magnesium oxide in a pore distribution obtained by mercury intrusion technique.

摘要翻译： 提供了一种用于净化排气的催化剂，其可用于高效地处理即使在催化剂暴露于高温之后也具有湿气并在氧化气氛和还原气氛之间波动的废气。 本发明涉及一种用于净化废气的催化剂，其具有催化剂组分的催化剂层，所述催化剂组分包含在三维结构上形成的贵金属，氧化镁和耐火无机氧化物，其中所述催化剂层具有起源于 通过汞侵入技术获得的孔分布中的氧化镁。

公开(公告)号：US20100101220A1

公开(公告)日：2010-04-29

申请号：US12607501

申请日：2009-10-28

申请人： Kinichi IWACHIDO ,  Takayuki ONODERA ,  Masanori IDE ,  Hiroaki OHHARA ,  Mariko ONO ,  Akihisa OKUMURA ,  Masao HORI

发明人： Kinichi IWACHIDO ,  Takayuki ONODERA ,  Masanori IDE ,  Hiroaki OHHARA ,  Mariko ONO ,  Akihisa OKUMURA ,  Masao HORI

IPC分类号： F01N3/10

CPC分类号： F01N3/10 ,  B01D53/9422 ,  B01D53/9445 ,  B01D53/9477 ,  B01D2255/1021 ,  B01D2255/1023 ,  B01D2255/1026 ,  B01D2255/202 ,  B01D2255/2022 ,  B01D2255/204 ,  B01D2255/2092 ,  B01D2255/50 ,  B01D2255/91 ,  F01N2570/14 ,  Y02A50/2344 ,  Y02T10/22

摘要： An exhaust gas purifying catalyst which is disposed in an exhaust pipe of an internal combustion engine, includes: a substrate; and a catalyst layer, supported in the substrate and including: noble metals including platinum (Pt) and palladium (Pd); a heat-resistant inorganic oxide; and a NOx trapping material. The exhaust gas purifying catalyst adsorbs NOx in an exhaust gase when an exhaust air-fuel ratio is in a lean state and desorbs and reduces the adsorbed NOx when the exhaust air-fuel ratio is in a stoichiometric state or a rich state. (Pt/Pd) which is a ratio of amount of the platinum (Pt) to amount of the palladium (Pd) is 0.7 or more and less than 1.0.

摘要翻译： 一种设置在内燃机的排气管中的废气净化催化剂，包括：基板; 和催化剂层，其负载在所述基板中，并且包括：包括铂（Pt）和钯（Pd）的贵金属; 耐热无机氧化物; 和NOx捕集材料。 当排气空燃比处于稀薄状态时，废气净化催化剂吸附废气中的NOx，并且当排气空燃比处于化学计量状态或浓态时解吸并减少吸附的NOx。 铂（Pt）与钯（Pd）的量的比例为0.7以上且小于1.0的铂（Pt / Pd）。