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公开(公告)号：US06420306B2
公开(公告)日：2002-07-16
申请号：US09201121
申请日：1998-11-30
申请人： Takahiro Kurokawa , Akihide Takami , Makoto Kyogoku , Hideharu Iwakuni , Kenji Okamoto , Hirosuke Sumida , Kenichi Yamamoto , Hiroshi Murakami , Hiroshi Yamada
发明人： Takahiro Kurokawa , Akihide Takami , Makoto Kyogoku , Hideharu Iwakuni , Kenji Okamoto , Hirosuke Sumida , Kenichi Yamamoto , Hiroshi Murakami , Hiroshi Yamada
IPC分类号： B01J2106
CPC分类号： B01D53/945 , B01D53/261 , B01D2255/902 , B01J23/58 , B01J23/63 , B01J37/0244 , F01N3/0814 , F01N3/0835 , F01N3/0842 , F01N2250/12 , F01N2570/14 , Y02A50/2344 , Y02T10/22
摘要： An exhaust gas emission control catalyst includes an under catalyst layer containing at least one of barium and lanthanum and an over catalyst layer containing an agent for absorbing water in a gas, at least one of the under catalyst layer and over catalyst layer containing catalytic metal.
摘要翻译： 废气排放控制催化剂包括含有钡和镧中的至少一种的催化剂层和含有气体中的水吸收剂的催化剂层，至少一个下催化剂层和含催化剂金属的催化剂层。
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公开(公告)号：US6066587A
公开(公告)日：2000-05-23
申请号：US937175
申请日：1997-09-25
申请人： Takahiro Kurokawa , Akihide Takami , Hideharu Iwakuni , Makoto Kyogoku , Kenji Okamoto , Hiroshi Yamada
发明人： Takahiro Kurokawa , Akihide Takami , Hideharu Iwakuni , Makoto Kyogoku , Kenji Okamoto , Hiroshi Yamada
IPC分类号： B01D53/94 , B01J21/16 , B01J23/58 , B01J23/63 , B01J29/068 , B01J29/44 , B01J37/02 , F01N3/28 , B01J29/04
CPC分类号： B01D53/945 , B01J37/0244 , B01J37/0246 , F01N3/2803 , F01N2570/12 , F01N2570/14 , Y02T10/22
摘要： A catalyst has a base catalyst layer containing platinum and barium as precious metal supported by alumina and an over catalyst layer containing platinum and rhodium as precious metal supported by zeolitr. The platinum and rhodium in the over catalyst layer activate NOx and HC so as to make them more reactive in terms of energy, and the barium in the base catalyst layer makes the platinum be more dispersive in the base catalyst layer. Under the existence of dispersive platinum, NOx in exhaust gas is decomposed and purified by reaction with reactive NO.sub.2 and partially oxidized HC generated in the over catalyst layer.
摘要翻译： 催化剂具有含铂和钡作为由氧化铝负载的贵金属的催化剂层，以及含有铂和铑作为贵金属担载于沸石的催化剂层。 过催化剂层中的铂和铑活化NOx和HC，使其在能量方面更具反应性，并且碱催化剂层中的钡使得铂在基催化剂层中更加分散。 在分散铂的存在下，废气中的NOx通过与过催化剂层中产生的反应性NO 2和部分氧化的HC反应而分解和纯化。
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公开(公告)号：US5677258A
公开(公告)日：1997-10-14
申请号：US639507
申请日：1996-04-29
申请人： Takahiro Kurokawa , Akihide Takami , Makoto Kyogoku , Hideharu Iwakuni , Kenji Okamoto , Hirosuke Sumida , Kenichi Yamamoto , Hiroshi Murakami , Hiroshi Yamada
发明人： Takahiro Kurokawa , Akihide Takami , Makoto Kyogoku , Hideharu Iwakuni , Kenji Okamoto , Hirosuke Sumida , Kenichi Yamamoto , Hiroshi Murakami , Hiroshi Yamada
IPC分类号： F01N3/10 , B01D53/26 , B01D53/86 , B01D53/94 , B01J23/38 , B01J23/44 , B01J23/56 , B01J23/58 , B01J23/63 , B01J29/068 , B01J29/44 , B01J37/02 , F01N3/08 , F01N3/24 , F01N3/28 , B01J23/00 , B01J23/42 , B01D50/00
CPC分类号： B01D53/945 , B01D53/261 , B01J23/58 , B01J23/63 , B01J37/0244 , F01N3/0814 , F01N3/0835 , F01N3/0842 , B01D2255/902 , F01N2250/12 , F01N2570/14 , Y02T10/22
摘要： An exhaust gas emission control catalyst includes an under catalyst layer containing at least one of barium and lanthanum and an over catalyst layer containing an agent for absorbing water in a gas, at least one of the under catalyst layer and over catalyst layer containing catalytic metal.
摘要翻译： 废气排放控制催化剂包括含有钡和镧中的至少一种的催化剂层和含有气体中的水吸收剂的催化剂层，至少一个下催化剂层和含催化剂金属的催化剂层。
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公开(公告)号：US06221804B1
公开(公告)日：2001-04-24
申请号：US09236621
申请日：1999-01-26
IPC分类号： B01J2340
CPC分类号： B01J37/0248 , B01D53/9422 , B01D2255/1021 , B01D2255/1025 , B01D2255/2042 , B01D2255/20707 , B01D2255/20715 , B01D2255/2073 , B01D2255/407 , B01D2255/9022 , B01J23/58 , B01J23/63 , B01J37/0244 , B01J37/0246
摘要： An exhaust gas purifying catalyst is provided by coating a slurry of a mixture of a powdered first catalyst provided by carrying Pt on a mixture of alumina and ceria and a powdered second catalyst provided by carrying Rh on manganese oxide on a support member and then impregnating the coated layer with a solution of barium.
摘要翻译： 通过将通过将Pt载持在氧化铝和二氧化铈的混合物上的粉末状第一催化剂的混合物的浆料和通过将Rh负载在载体上的氧化锰上而提供的粉末状的第二催化剂的浆料上来提供废气净化催化剂，然后将 涂层用钡溶液。
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公开(公告)号：US6141960A
公开(公告)日：2000-11-07
申请号：US129755
申请日：1998-08-05
申请人： Akihide Takami , Hideharu Iwakuni , Makoto Kyogoku , Hiroshi Yamada , Kenji Okamoto , Junichi Taga , Tomomi Watanabe , Hirofumi Nishimura , Tadataka Nakazumi , Youichi Kuji , Masayuki Kuroki
发明人： Akihide Takami , Hideharu Iwakuni , Makoto Kyogoku , Hiroshi Yamada , Kenji Okamoto , Junichi Taga , Tomomi Watanabe , Hirofumi Nishimura , Tadataka Nakazumi , Youichi Kuji , Masayuki Kuroki
IPC分类号： F02B17/00 , B01D53/34 , B01D53/50 , B01D53/74 , B01D53/86 , B01D53/94 , F01N3/08 , F01N3/10 , F01N3/20 , F01N3/24 , F02B75/12 , F02D41/02 , F02D41/04 , F02D41/30 , F02D41/34 , F02D41/40 , F02M45/02 , F01N3/00
CPC分类号： F01N3/0842 , B01D53/9495 , F02D41/028 , F02D41/3023 , F02M45/02 , B01D2251/204 , B01D2255/1021 , B01D2255/204 , B01D2255/91 , B01D2255/912 , F01N2570/04 , F01N2570/16 , F02B2075/125 , F02D2041/389 , F02D41/402 , Y02T10/123
摘要： An exhaust gas purifying system includes an exhaust gas purifying catalyst having a nitrogen oxide absorbing material which is installed in an exhaust line of an engine and performs split fuel injection to inject fuel directly into each combustion chamber partly during a suction stroke and partly during a compression stroke to provide and supply an increased amount of carbon monoxide to the nitrogen oxide absorbing material so as thereby to desorb sulfur oxides from the nitrogen oxide absorbing material.
摘要翻译： 排气净化系统包括具有氮氧化物吸收材料的排气净化催化剂，其被安装在发动机的排气管线中并且在吸入冲程期间部分地在压缩期间进行分流燃料喷射以将燃料直接喷射到每个燃烧室中 提供并向氮氧化物吸收材料提供增加量的一氧化碳，从而从氮氧化物吸收材料中解吸硫氧化物。
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6.发明授权Method of producing exhaust gas purifying catalyst and catalyst produced thereby 有权废气净化催化剂的制造方法及由此制造的催化剂公开(公告)号：US06432859B1
公开(公告)日：2002-08-13
申请号：US09458949
申请日：1999-12-10
IPC分类号： B01J2906
CPC分类号： B01D53/945 , B01D53/9422 , B01D2255/1021 , B01D2255/1023 , B01D2255/202 , B01D2255/2042 , B01D2255/50 , B01D2255/9022 , B01D2255/908 , B01J37/0242 , B01J37/0244 , B01J37/0246 , Y02T10/22
摘要： An exhaust gas purifying catalyst contains a NOx absorbing component which comprises at least one kind of element selected from a group of alkaline earth metals, a group of alkaline metals and a group of rare earth elements and a component, other than the NOx absorbing component, selected between K and Na. The catalyst has a such a structure that the component other than the NOx absorbing component is brought into contact with an exhaust gas before the NOx absorbing component is brought into contact with the exhaust gas.
摘要翻译： 废气净化催化剂含有NOx吸收组分，其包含选自碱土金属，一组碱金属和一组稀土元素中的至少一种元素以及除了NOx吸收组分之外的组分， 选择K和Na之间。 该催化剂具有使NOx吸收成分以外的成分在与NOx排出物接触的状态下与废气接触的结构。
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公开(公告)号：US07863217B2
公开(公告)日：2011-01-04
申请号：US11790942
申请日：2007-04-30
CPC分类号： B01D53/945 , B01D2255/1025 , B01D2255/206 , B01D2255/20715 , B01D2255/40 , B01D2255/407 , B01J21/066 , B01J23/63 , B01J35/04 , B01J35/1019 , B01J35/1061 , B01J37/038 , B01J2523/00 , F01N3/2828 , Y02T10/22 , B01J2523/3718 , B01J2523/48 , B01J2523/822 , B01J2523/3725 , B01J2523/3706 , B01J2523/3737 , B01J2523/36 , B01J2523/3787
摘要： Disclosed is an exhaust gas purifying catalyst, which comprises a catalyst layer formed on a honeycomb-shaped support. The catalyst layer is formed by mixing a catalyst powder (A) consisting of a composite oxide (RhZrCeNdO) which contains at least Ce, Zr, and a catalytic noble metal composition, and a catalyst powder (B) consisting of a Zr-based oxide (RhZrXO) which contains at least Zr and has Rh existing on a surface thereof. A ratio (RhZrXO/RhZrCeNdO) of a mass of the catalyst powder (B) to a total mass of the catalyst powder (A) and the catalyst powder (B) may be set in the range of 1 to 50%. Further, the catalyst powder (B) may consist of a composite oxide which contains Zr as a primary component, a rare-earth metal except Ce, and Rh. The exhaust gas purifying catalyst of the present invention can provide enhanced exhaust gas conversion efficiency.
摘要翻译： 公开了一种废气净化催化剂，其包括形成在蜂窝状载体上的催化剂层。 催化剂层通过将由至少包含Ce，Zr的复合氧化物（RhZrCeNdO）和催化剂贵金属组合物组成的催化剂粉末（A）和由Zr类氧化物组成的催化剂粉末（B） （RhZrXO），其至少包含Zr并且在其表面上存在Rh。 催化剂粉末（B）的质量与催化剂粉末（A）和催化剂粉末（B）的总质量的比率（RhZrXO / RhZrCeNdO）可以设定在1〜50％的范围内。 此外，催化剂粉末（B）可以由以Zr为主要成分的复合氧化物，Ce以外的稀土金属和Rh组成。 本发明的废气净化用催化剂能够提高排气净化效率。
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公开(公告)号：US20070117715A1
公开(公告)日：2007-05-24
申请号：US11583827
申请日：2006-10-20
申请人： Seiji Miyoshi , Hiroshi Yamada , Hideharu Iwakuni , Koichiro Harada , Koji Minoshima , Akihide Takami
发明人： Seiji Miyoshi , Hiroshi Yamada , Hideharu Iwakuni , Koichiro Harada , Koji Minoshima , Akihide Takami
IPC分类号： B01J23/00
CPC分类号： B01J23/10 , B01D53/945 , B01D2255/407 , B01D2255/908 , B01D2255/9202 , B01D2255/9205 , B01J23/002 , B01J23/63 , B01J35/023 , B01J35/04 , B01J37/0045 , B01J37/343 , B01J2523/00 , Y02T10/22 , B01J2523/3712 , B01J2523/48
摘要： An exhaust gas purification catalyst comprises an oxygen storage component constituted by a mixed oxide containing cerium and zirconium, and a catalytic metal and a NOx storage component are carried on the oxygen storage component. The oxygen storage component is in the form of porous secondary particles in each of which primary particles of an average particle size of less than 10 nm cohere to form fine pores inside each said secondary particle.
摘要翻译： 废气净化催化剂包括由含有铈和锆的混合氧化物构成的储氧组分，催化金属和NOx储存组分被载置在储氧组分上。 储氧组分是多孔二次颗粒的形式，其中平均粒度小于10nm的初级颗粒各自在每个所述二次颗粒内形成细孔。
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9.发明申请公开(公告)号：US20050119120A1
公开(公告)日：2005-06-02
申请号：US10985773
申请日：2004-11-10
申请人： Hideharu Iwakuni , Masaaki Akamine , Seiji Miyoshi , Hiroshi Yamada , Akihide Takami , Yuki Murakami
发明人： Hideharu Iwakuni , Masaaki Akamine , Seiji Miyoshi , Hiroshi Yamada , Akihide Takami , Yuki Murakami
IPC分类号： F01N3/10 , B01D53/94 , B01J21/06 , B01J23/00 , B01J23/63 , B01J37/02 , B01J37/03 , C01G25/00 , C01B31/20
CPC分类号： B01D53/945 , B01D2255/102 , B01D2255/206 , B01D2255/20715 , B01D2255/908 , B01J21/066 , B01J23/002 , B01J23/63 , B01J37/0201 , B01J37/0248 , B01J37/03 , B01J2523/00 , C01G25/006 , C01P2002/72 , C01P2006/12 , Y02T10/22 , B01J2523/3712 , B01J2523/3725 , B01J2523/48 , B01J2523/822 , B01J2523/824 , B01J2523/31 , B01J2523/828
摘要： The present invention relates to an exhaust gas purification catalytic material containing: (a) a mixed oxide containing Ce and Zr for storing and releasing oxygen; and (b) a precious metal catalyst made of one or more kinds of precious metals. The precious metal catalyst comprises a first precious metal catalyst component placed between atoms, at crystal lattice points and/or at oxygen defect sites of the mixed oxide and a second precious metal catalyst component loaded on the surface of the mixed oxide, thereby improving the thermal resistance, oxygen storage capacity and exhaust gas conversion performance of the catalytic material.
摘要翻译： 本发明涉及一种废气净化催化剂材料，其含有：（a）含有用于储存和释放氧的Ce和Zr的混合氧化物; 和（b）由一种或多种贵金属制成的贵金属催化剂。 贵金属催化剂包括置于原子之间，混合氧化物的晶格点和/或氧缺陷位置处的第一贵金属催化剂组分和负载在混合氧化物表面上的第二贵金属催化剂组分，由此改善热 电阻，储氧能力和催化材料的废气转化性能。
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公开(公告)号：US07446076B2
公开(公告)日：2008-11-04
申请号：US11289666
申请日：2005-11-29
申请人： Seiji Miyoshi , Akihide Takami , Hiroshi Yamada , Masaaki Akamine , Hideharu Iwakuni , Koichiro Harada
发明人： Seiji Miyoshi , Akihide Takami , Hiroshi Yamada , Masaaki Akamine , Hideharu Iwakuni , Koichiro Harada
CPC分类号： B01D53/945 , B01J23/40 , B01J23/63 , B01J35/04 , B01J37/0232 , B01J37/0244 , B01J37/0248 , Y02T10/22
摘要： Catalytic converter comprises a carrier having exhaust gas passages therein, a lower catalytic layer coated over the carrier and comprising hollow oxide powder loaded with catalytic metal, and an upper catalytic layer coated over the lower catalytic layer, directly exposed to exhaust gas flowing in the exhaust gas passages and comprising solid oxide powder loaded with catalytic metal. The hollow oxide powder may be ceria or alumina base oxide. Further it may be mixed oxide such as Ce—Zr mixed oxide or La contained alumina as well.
摘要翻译： 催化转化器包括其中具有排气通道的载体，涂覆在载体上的下催化剂层，并且包含负载有催化金属的中空氧化物粉末，以及涂覆在下催化剂层上的上部催化剂层，直接暴露于在排气中流动的废气 气体通道并且包含装有催化金属的固体氧化物粉末。 中空氧化物粉末可以是二氧化铈或氧化铝基底氧化物。 此外，也可以是混合氧化物，例如Ce-Zr混合氧化物或La包含的氧化铝。
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