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1. 发明授权

US06221805B1 Catalyst support and catalyst and process for producing the same 失效
标题翻译：催化剂载体和催化剂及其制备方法
公开(公告)号：US06221805B1
公开(公告)日：2001-04-24
申请号：US09256234
申请日：1999-02-24
申请人： Koichi Yamashita , Shinji Tsuji , Naoto Miyoshi , Oji Kuno , Masahiko Sugiyama , Kazumasa Takatori , Takao Tani , Nobuo Kamiya
发明人： Koichi Yamashita , Shinji Tsuji , Naoto Miyoshi , Oji Kuno , Masahiko Sugiyama , Kazumasa Takatori , Takao Tani , Nobuo Kamiya
IPC分类号： B01J2304
CPC分类号： B01D53/945 , B01J21/04 , B01J37/0045 , B01J37/0236 , Y02T10/22
摘要： A catalyst support, a catalyst using the catalyst support and a process for producing the same are disclosed. For instance, the catalyst support includes a composite oxide powder produced by spraying and burning a W/O type emulsion, the W/O type emulsion including an aqueous solution dispersed in an organic solvent, the aqueous solution containing aluminum as a major component and at least one co-metallic element in addition to the aluminum. Thus, the catalyst support can be produced less expensively without using any expensive alkoxide. Further, due to the spraying and burning, the composite oxide powder is composed of porous hollow particles which have a very thin shell thickness of dozens of nanometers, and makes the catalyst support which is amorphous and exhibits a large specific surface area. Hence, the catalyst support can maintain the large specific surface area even after a high-temperature durability test. Furthermore, the composite oxide powder includes the co-metallic element which is composited in such a highly dispersed manner that the agglomerated sulfates are less likely to be produced. Therefore, the catalyst support is inhibited from being poisoned by sulfur.
摘要翻译：公开了催化剂载体，使用催化剂载体的催化剂及其制备方法。例如，催化剂载体包括通过喷雾和燃烧W / O型乳液而制备的复合氧化物粉末，W / O型乳液包括分散在有机溶剂中的水溶液，含有铝作为主要成分的水溶液，除了铝之外还有至少一种共金属元素。因此，不用任何昂贵的醇盐就可以不昂贵地生产催化剂载体。此外，由于喷涂和燃烧，复合氧化物粉末由具有非常薄的几十纳米的壳厚度的多孔中空颗粒组成，并使催化剂载体是无定形的并且具有大的比表面积。因此，即使在高温耐久试验之后，催化剂载体也能保持较大的比表面积。此外，复合氧化物粉末包括以非常分散的方式复合的共金属元素，使得不太可能生产聚集的硫酸盐。因此，抑制催化剂载体被硫中毒。

2. 发明授权

US6147027A Alloy catalyst and process for producing the same 失效
标题翻译：合金催化剂及其制备方法
公开(公告)号：US6147027A
公开(公告)日：2000-11-14
申请号：US114968
申请日：1998-07-14
申请人： Yoshiharu Miyake , Naoto Miyoshi , Shinji Tsuji
发明人： Yoshiharu Miyake , Naoto Miyoshi , Shinji Tsuji
IPC分类号： B01D53/94 , B01J23/38 , B01J23/40 , B01J37/02 , B01J37/03 , B01J37/16 , B01J23/00
CPC分类号： B01D53/945 , B01J23/38 , B01J23/40 , B01J37/0221 , B01J37/031 , Y02T10/22
摘要： The present invention relates to an alloy catalyst for purifying an exhaust gas, and particularly provides an alloy catalyst excellent in nitrogen oxide purification characteristics in the lean region by improving the catalytic activity by coating first catalytic metal particles with a second metal coagulated phase, and a process for producing the same, the alloy catalyst for purifying an exhaust gas having a structure in which metal coagulated phases being applied to and supported by a metal oxide, and comprising first catalytic metal particles having an average particle size of up to 30 nm, and a second metal coagulated phase containing at least one metal, differing from the catalytic metal particles, and applying to the first catalytic metal particles at a coating ratio of at least 45%, and the process for producing an alloy catalyst for purifying an exhaust gas, comprising the steps of allowing first catalytic metal particles having an average particle size of up to 30 nm to adhere onto a metal oxide, and reduction precipitating a second metal coagulated phase containing at least one metal differing from the first catalytic metal particles thereon, and comprising at least one metal selected from the group consisting of Pt, Pd, Au, Rh, Ag and Ir.
摘要翻译：本发明涉及一种用于净化废气的合金催化剂，特别是通过用第二金属凝固相涂覆第一催化金属颗粒来提高催化活性，从而提供贫区中氮氧化物净化特性优异的合金催化剂，制造该金属氧化物的金属凝固相的金属凝固相的结构的排气净化用合金催化剂，其平均粒径为30nm以下的第一催化剂金属粒子，以及第二金属凝固相，其含有至少一种与催化金属颗粒不同的金属，并以至少45％的涂布比施加到第一催化金属颗粒，以及用于制备用于净化废气的合金催化剂的方法，包括允许平均粒度高达30nm的第一催化金属颗粒粘附的步骤并且还原沉淀含有与第一催化金属颗粒不同的至少一种金属的第二金属凝固相，并且包含选自Pt，Pd，Au，Rh，Ag和Ir中的至少一种金属。

3. 发明授权

US11602742B2 Exhaust gas purification device 有权
公开(公告)号：US11602742B2
公开(公告)日：2023-03-14
申请号：US17178336
申请日：2021-02-18
申请人： Koji Sugiura , Hiromasa Nishioka , Naoto Miyoshi , Akemi Sato , Ryota Nakashima , Masatoshi Ikebe , Keisuke Murawaki , Hirotaka Ori
发明人： Koji Sugiura , Hiromasa Nishioka , Naoto Miyoshi , Akemi Sato , Ryota Nakashima , Masatoshi Ikebe , Keisuke Murawaki , Hirotaka Ori
IPC分类号： B01J23/40 , B01J23/42 , B01J23/44 , B01J23/46 , B01J35/00 , B01J35/04 , B01D53/94 , B01D46/24 , F01N3/28
摘要： Provided is an exhaust gas purification device that ensures an improved purification performance and a suppressed pressure loss. An exhaust gas purification device of the present disclosure includes a honeycomb substrate and an inflow cell side catalyst layer. disposed on a surface on the inflow cell side in an inflow side region of the partition wall. When a gas permeability coefficient of an inflow side partition wall portion including the inflow side region of the partition wall and the inflow cell side catalyst layer is Ka and a gas permeability coefficient of an outflow side partition wall portion including an outflow side region at least from the predetermined position to an outflow side end of the partition wall is Kb, a ratio Ka/Kb of the gas permeability coefficients is within a range of 0.4 or more and 0.8 or less.

4. 发明授权

US07759278B2 Exhaust gas-purifying catalyst 失效
标题翻译：废气净化催化剂
公开(公告)号：US07759278B2
公开(公告)日：2010-07-20
申请号：US11482685
申请日：2006-07-06
申请人： Satoshi Matsueda , Mareo Kimura , Yoshinori Ishii , Naoto Miyoshi
发明人： Satoshi Matsueda , Mareo Kimura , Yoshinori Ishii , Naoto Miyoshi
IPC分类号： B01J23/00 , B01J23/10 , B01J23/58 , B01J23/42 , B01J23/44
CPC分类号： C01G55/00 , B01D53/9422 , B01D53/945 , B01D2255/1021 , B01D2255/2042 , B01D2255/2065 , B01J23/002 , B01J23/63 , B01J35/0006 , B01J2523/00 , C01G55/002 , Y02T10/22 , B01J2523/25 , B01J2523/3712 , B01J2523/828
摘要： An exhaust gas-purifying catalyst includes a rare-earth element, an alkaline-earth element, and a precious metal. A part of the rare-earth element and a part of the alkaline-earth element form a composite oxide. The composite oxide and a part of the precious metal form a solid solution.
摘要翻译：废气净化催化剂包括稀土元素，碱土金属元素和贵金属。稀土元素的一部分和一部分碱土元素形成复合氧化物。复合氧化物和贵金属的一部分形成固溶体。

5. 发明授权

US6159897A Catalyst for purifying exhaust gases 有权
标题翻译：废气净化催化剂
公开(公告)号：US6159897A
公开(公告)日：2000-12-12
申请号：US201124
申请日：1998-11-30
申请人： Hiromasa Suzuki , Shinichi Matsumoto , Naoto Miyoshi , Kazunobu Ishibashi , Koichi Kasahara , Syuji Tateishi , Daisuke Suzuki
发明人： Hiromasa Suzuki , Shinichi Matsumoto , Naoto Miyoshi , Kazunobu Ishibashi , Koichi Kasahara , Syuji Tateishi , Daisuke Suzuki
IPC分类号： B01D53/86 , B01D53/94 , B01J21/06 , B01J23/40 , B01J23/42 , B01J23/58 , B01J23/63 , B01J21/12 , B01J23/02 , B01J23/10
CPC分类号： B01D53/945 , B01D53/9422 , B01D2255/1021 , B01D2255/1025 , B01D2255/2022 , B01D2255/2027 , B01D2255/2042 , B01D2255/2061 , B01D2255/2063 , B01D2255/2065 , B01D2255/91 , B01J21/063 , B01J21/066 , B01J23/58 , B01J23/63 , Y02T10/22
摘要： A catalyst for purifying exhaust gases includes a support including at le one composite selected from the group consisting of TiO.sub.2 --Al.sub.2 O.sub.3, ZrO.sub.2 --Al.sub.2 O.sub.3 and SiO.sub.2 --Al.sub.2 O.sub.3 composites, an NO.sub.x adsorbent including at least one member selected from the group consisting of alkali metals, alkaline-earth metals and rare-earth elements and loaded on the support, and a noble metal catalyst ingredient loaded on the support. The composites constituting the support improve initial NO.sub.x conversion of the catalyst, but also inhibit NO.sub.x purifying performance thereof from degrading even after a durability test.
摘要翻译：一种用于净化废气的催化剂包括包含至少一种选自TiO 2 -Al 2 O 3，ZrO 2 -Al 2 O 3和SiO 2 -Al 2 O 3复合材料的复合材料的载体，包括选自碱金属，碱土金属和稀土元素并负载在载体上，贵金属催化剂成分装载在载体上。构成载体的复合体能够提高催化剂的初始NOx转化率，而且即使在耐久性试验后也能够抑制NOx净化性能的劣化。

6. 发明授权

US08993475B2 Oxygen storage material 有权
标题翻译：储氧材料
公开(公告)号：US08993475B2
公开(公告)日：2015-03-31
申请号：US12307571
申请日：2007-06-22
申请人： Mareo Kimura , Keiichi Narita , Akimasa Hirai , Akiya Chiba , Naoto Miyoshi , Kazunobu Ishibashi , Takaaki Kanazawa , Takeru Yoshida , Hirohisa Tanaka , Mari Uenishi , Isao Tan , Masashi Taniguchi
发明人： Mareo Kimura , Keiichi Narita , Akimasa Hirai , Akiya Chiba , Naoto Miyoshi , Kazunobu Ishibashi , Takaaki Kanazawa , Takeru Yoshida , Hirohisa Tanaka , Mari Uenishi , Isao Tan , Masashi Taniguchi
IPC分类号： B01J23/10 , B01D53/94 , C01G25/02 , B01D53/02 , B01J23/00 , B01J23/63
CPC分类号： C01G25/02 , B01D53/02 , B01D2253/112 , B01D2255/407 , B01D2256/12 , B01D2259/4525 , B01J23/002 , B01J23/63 , B01J2523/00 , C01P2002/72 , C01P2002/85 , C01P2004/82 , C01P2006/12 , Y10S502/526 , B01J2523/25 , B01J2523/3712 , B01J2523/48 , B01J2523/36
摘要： An excellent oxygen storage capacity is achieved even in the case used for a long period of time under high temperature conditions. An oxygen storage material contains a first particle made of a composite oxide of cerium and zirconium or a composite oxide of cerium, a rare-earth element other than cerium and zirconium, a second particle including a composite oxide of a rare-earth element, an alkaline-earth element and zirconium, and a precious metal. A part of the precious metal forms a solid solution with the composite oxide included in the second particle.
摘要翻译：即使在高温条件下长时间使用的情况下也能实现极好的储氧能力。储氧材料包含由铈和锆的复合氧化物制成的第一颗粒或铈，铈和锆以外的稀土元素的复合氧化物，包含稀土元素的复合氧化物的第二颗粒，碱土元素和锆，以及贵金属。贵金属的一部分与第二颗粒中包含的复合氧化物形成固溶体。

7. 发明授权

US07498288B2 Exhaust gas-purifying catalyst and method of manufacturing the same 有权
标题翻译：废气净化催化剂及其制造方法
公开(公告)号：US07498288B2
公开(公告)日：2009-03-03
申请号：US11057902
申请日：2005-02-14
申请人： Satoshi Matsueda , Mareo Kimura , Naoto Miyoshi
发明人： Satoshi Matsueda , Mareo Kimura , Naoto Miyoshi
IPC分类号： B01J21/06 , B01J23/00 , B01J23/02 , B01J23/10 , B01J23/40 , B01J23/42 , B01J23/44 , B01J23/46 , B01J23/56 , B01J23/58 , B01J23/63 , B01J37/08
CPC分类号： B01D53/945 , B01J23/002 , B01J23/464 , B01J23/58 , B01J23/63 , B01J37/0009 , B01J37/0205 , B01J37/0207 , B01J37/0248 , B01J37/08 , B01J2523/00 , Y02T10/22 , B01J2523/3706 , B01J2523/48 , B01J2523/822 , B01J2523/828 , B01J2523/824 , B01J2523/31 , B01J2523/3712
摘要： An exhaust gas-purifying catalyst includes a support and a catalyst active component including at least one noble metal supported by at least a portion of the support. The support includes a stabilized zirconia containing at least one stabilizing element selected from rare earth elements and alkaline earth elements. 20 to 80% by weight of a total amount of the active component is supported in the support in a form of solid solution with the stabilized zirconia, and 80 to 20% by weight of a total amount of the active component is supported on a surface of at least a portion of the support.
摘要翻译：废气净化催化剂包括载体和包含至少一种由至少一部分载体负载的贵金属的催化剂活性组分。载体包括稳定的氧化锆，其含有至少一种选自稀土元素和碱土金属元素的稳定元素。活性成分总量的20〜80重量％以稳定化的氧化锆的固溶体的形式负载在载体上，活性成分的总量的80〜20重量％负载在表面的至少一部分支撑件。

8. 发明授权

US06217831B1 Catalyst for purifying exhaust gases 失效
标题翻译：废气净化催化剂
公开(公告)号：US06217831B1
公开(公告)日：2001-04-17
申请号：US08909049
申请日：1997-08-11
申请人： Hiromasa Suzuki , Naoto Miyoshi
发明人： Hiromasa Suzuki , Naoto Miyoshi
IPC分类号： B01D5360
CPC分类号： B01D53/945 , B01D2255/2042 , B01D2255/2073 , B01D2255/20738 , B01D2255/20746 , B01D2255/20753 , B01D2255/20761 , B01D2255/91 , Y02T10/22
摘要： A catalyst for purifying exhaust gases which aims to efficiently purify NOx in exhaust gases in oxygen-rich atmospheres whose oxygen concentrations are more than required for oxidizing CO and HC, and to attain improved NOx purifying performance after used for a long time. The catalyst includes, being arranged in an order from the upstream to the downstream of exhaust gas flow, a first catalyst 1 in which a noble metal catalyst 12 is loaded on a porous acidic support, a second catalyst 2 in which at least one kind of metal 22 selected from the group consisting of alkali metals, alkaline-earth metals, and rare earth metals is loaded on a porous support, and a third catalyst 3 in which a noble metal catalyst 32 is loaded on a porous support. Since SO2 is not adsorbed or oxidized by the first catalyst 1, SO2 is discharged downstream from the second catalyst 2 without generating sulfate. Therefore, since the NOx absorber is free from degradation even after used for a long time, the second catalyst 2 maintains high NOx adsorbing performance on the fuel-lean side, and the third catalyst 3 reduces NOx which are emitted from the second catalyst 2 on the stoichiometric point or on the fuel-rich side.
摘要翻译：一种用于净化废气的催化剂，其目的是有效地净化氧浓度超过氧化CO和HC所需氧浓度的富氧气氛中的废气中的NOx，并且在长时间使用后获得改善的NOx净化性能。催化剂包括从排气流的上游到下游的顺序排列有第一催化剂1，其中贵金属催化剂12负载在多孔酸性载体上，第二催化剂2，其中至少一种将由碱金属，碱土金属和稀土类金属组成的组中选择的金属22负载在多孔载体上，在其上添加贵金属催化剂32的第三催化剂3。由于SO 2不被第一催化剂1吸附或氧化，所以在不产生硫酸盐的情况下将SO 2从第二催化剂2的下游排出。因此，即使长时间使用NOx吸收剂也不会劣化，所以第二催化剂2在燃料贫乏侧保持高NOx吸附性能，第三催化剂3将从第二催化剂2排出的NOx还原化学计量点或富燃料侧。

9. 发明授权

US5948376A Catalyst for purifying exhaust gases 失效
标题翻译：废气净化催化剂
公开(公告)号：US5948376A
公开(公告)日：1999-09-07
申请号：US615789
申请日：1996-03-14
申请人： Naoto Miyoshi , Tuneyuki Tanizawa , Kazunobu Ishibashi , Koichi Kasahara , Syuji Tateishi
发明人： Naoto Miyoshi , Tuneyuki Tanizawa , Kazunobu Ishibashi , Koichi Kasahara , Syuji Tateishi
IPC分类号： B01D53/14 , B01D53/86 , B01D53/94 , B01J23/56 , B01J23/58 , B01J23/63 , B01J37/02
CPC分类号： B01D53/945 , B01D53/9481 , B01J23/58 , B01J23/63 , B01D2255/91 , B01J37/0248 , F01N2570/16 , Y02T10/22
摘要： A catalyst for purifying exhaust gases includes a porous support, an NO.sub.x storage component including at least one member selected from the group consisting of alkaline-earth metals, rare-earth elements and alkali metals, and loaded on the porous support, a noble metal catalyst ingredient loaded on the porous support, and disposed adjacent to the NO.sub.x storage component, and ceria (CeO.sub.2) disposed away from the noble metal catalyst ingredient. By disposing the noble metal catalyst ingredient adjacent to the NO.sub.x storage component, the reduction reactions of NO.sub.x can be facilitated in fuel-rich (i.e., oxygen-lean) atmospheres without being interfered by the ceria. By disposing the ceria away from the noble metal catalyst ingredient, oxygen, which has been stored thereon in fuel-lean (i.e., oxygen-rich) atmospheres, can be released from the ceria at a controlled rate in a controlled amount in fuel-rich (i.e., oxygen-lean) atmospheres, and thereby the released oxygen can be inhibited from reacting with HC and CO in fuel-rich (i.e., oxygen-lean) atmospheres. Thus, the catalyst is improved in terms of NO.sub.x purifying performance.
摘要翻译：用于净化废气的催化剂包括多孔载体，包含选自碱土金属，稀土元素和碱金属中的至少一种的负载在多孔载体上的NOx储存组分，贵金属催化剂负载在多孔载体上并且邻近于NOx储存组分设置的成分和远离贵金属催化剂成分的二氧化铈（CeO 2）。通过将贵金属催化剂成分配置在与NOx存储成分相邻的位置，可以在不受二氧化铈干扰的情况下，富含燃料（即贫氧）的气氛中的NOx的还原反应变得容易。通过将二氧化铈置于贵金属催化剂成分之外，其中储存在贫燃料（即富氧）气氛中的氧可以以受控的量在二氧化铈中以富含燃料的方式从二氧化铈中释放出来（即，贫氧）气氛，从而可以抑制释放的氧与富含燃料（即贫氧）气氛中的HC和CO反应。因此，NOx净化性能提高了催化剂。

10. 发明授权

US10850269B2 Exhaust gas purification catalyst 有权
公开(公告)号：US10850269B2
公开(公告)日：2020-12-01
申请号：US16213324
申请日：2018-12-07
申请人： Atsushi Tanaka , Takeru Yoshida , Naoto Miyoshi , Akemi Sato , Yasutaka Nomura , Satoru Inoda
发明人： Atsushi Tanaka , Takeru Yoshida , Naoto Miyoshi , Akemi Sato , Yasutaka Nomura , Satoru Inoda
IPC分类号： B01J23/38 , B01J23/40 , B01J23/42 , B01J23/44 , B01J23/46 , B01J35/00 , B01J35/04 , B01D46/24 , B01D53/94 , B01J23/10
摘要： The exemplary embodiments relate to an exhaust gas purification catalyst, in which exhaust gas purification performance is secured and an increase in pressure loss is suppressed, which is an exhaust gas purification catalyst, in which a porous filter wall of a substrate having a wall-flow structure is coated with a catalyst material containing an OSC material having oxygen storage capacity and a catalyst metal, wherein the density of percolation paths having percolation path diameters of 4 μm or more per unit area inside of the filter wall coated with the catalyst material is 100 paths/mm2 to 1000 paths/mm2.

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