公开(公告)号：US5722238A

公开(公告)日：1998-03-03

申请号：US734774

申请日：1996-10-22

申请人： Toshio Tanahashi ,  Masakatsu Sanada ,  Koji Yokota ,  Shinichi Matsunaga ,  Hideo Sobukawa ,  Ichiro Konomi ,  Tadashi Suzuki

发明人： Toshio Tanahashi ,  Masakatsu Sanada ,  Koji Yokota ,  Shinichi Matsunaga ,  Hideo Sobukawa ,  Ichiro Konomi ,  Tadashi Suzuki

IPC分类号： F02D45/00 ,  F01N3/20 ,  F01N11/00

CPC分类号： F01N11/002 ,  F01N11/00 ,  F01N11/007 ,  F01N2550/02 ,  Y02T10/47

摘要： A device for evaluating catalyst performance deterioration includes an air-fuel ratio sensor and a temperature sensor. The degree of catalyst performance deterioration per unit time is calculated based on the concentration of oxygen in the exhaust gas and the temperature of the catalyst. The deterioration of the catalyst is evaluated on the basis of the accumulated value of the degree of catalyst performance deterioration per unit time.

摘要翻译： 用于评价催化剂性能劣化的装置包括空燃比传感器和温度传感器。 基于废气中的氧浓度和催化剂的温度计算每单位时间的催化剂性能劣化程度。 基于每单位时间的催化剂性能劣化程度的累积值来评价催化剂的劣化。

公开(公告)号：US5795992A

公开(公告)日：1998-08-18

申请号：US765365

申请日：1997-02-10

申请人： Toshio Tanahashi ,  Masakatsu Sanada ,  Hiroyuki Domyo ,  Hiroshi Hirayama ,  Kazuaki Sobue ,  Tsuneo Higashi ,  Koji Yokota ,  Hideo Sobukawa ,  Tadashi Suzuki ,  Shinichi Matsunaga

发明人： Toshio Tanahashi ,  Masakatsu Sanada ,  Hiroyuki Domyo ,  Hiroshi Hirayama ,  Kazuaki Sobue ,  Tsuneo Higashi ,  Koji Yokota ,  Hideo Sobukawa ,  Tadashi Suzuki ,  Shinichi Matsunaga

IPC分类号： F01N11/00 ,  F02D41/14 ,  G01M99/00 ,  G01M15/00

CPC分类号： F01N11/002 ,  F02D41/1446 ,  F02D41/1495 ,  F01N2550/02 ,  F01N2550/20 ,  Y02T10/47

摘要： An internal combustion engine in which a three-way catalyst (12) for purification of the exhaust gas is arranged in the exhaust passage, wherein the relationship between the magnitude of the stress causing deterioration of the three-way catalyst (12), for example the catalytic bed temperature, and the rate of deterioration of the performance of the catalyst is found. A durability test is performed by raising the catalytic bed temperature higher than that of the vehicle under market driving. The length of the durability test at this time is determined from the relationship between the catalytic bed temperature and the rate of deterioration of the performance of the catalyst so as to give the same degree of deterioration of the performance of the catalyst as with market driving. The length of the durability test required for giving the same degree of deterioration of the performance of the catalyst is much shorter than the market driving time.

摘要翻译： PCT No.PCT / JP96 / 01318 Sec。 371日期1997年2月10日 102（e）日期1997年2月10日PCT提交1996年5月17日PCT公布。 WO96 / 36863 PCT出版物 日期：1996年11月21日在排气通路内配置有用于净化废气的三元催化剂（12）的内燃机，其中，三元催化剂的导致劣化的应力的大小 12），例如催化床温度和催化剂性能劣化的速率。 在市场驾驶下，通过提高催化床温度高于车辆的耐久性试验。 此时的耐久性试验的长度根据催化床温度与催化剂性能劣化的关系来确定，从而与催化剂的性能相同程度的劣化与市场驾驶相同。 给出相同程度的催化剂性能劣化所需的耐久性试验的长度比市场行驶时间短得多。

公开(公告)号：US06150288A

公开(公告)日：2000-11-21

申请号：US946102

申请日：1997-10-07

申请人： Tadashi Suzuki ,  Hideo Sobukawa

发明人： Tadashi Suzuki ,  Hideo Sobukawa

IPC分类号： B01D53/94 ,  B01J23/10 ,  B01J37/02 ,  C04B35/48 ,  B01J23/54 ,  C04B35/50

CPC分类号： B01D53/945 ,  B01D53/9413 ,  B01J23/10 ,  B01J37/0236 ,  B01D2255/1021 ,  B01D2255/1025 ,  B01D2255/2042 ,  B01D2255/2063 ,  B01D2255/2065 ,  B01D2255/2092 ,  B01D2255/908 ,  B01D2255/9202 ,  B01D2255/9207 ,  Y02T10/22

摘要： The composite oxide and the composite oxide carrier are manufactured by the precursor forming step and firing step. The precursor forming step includes high speed mixing means. The composite oxide catalyst is obtained by preparing a composite of catalytic components simultaneously with the formation of the precursor of composite oxide in the step of forming the precursor of composite oxide. The composite oxide and the composite oxide carrier are composed of a composite oxide in which at least one of cerium and zirconium, and aluminium disperse with extremely high homogeneity. With this structure, the heat resistance of the carrier is improved and consequently, enlargement of particles of the composite oxide defining the carrier, and sintering of adjacent particles of the composite oxide can be restrained, whereby the catalyst using the composite oxide carrier in accordance with the present invention is excellent in heat resistance. With the present invention, the carrier is not limited to a general catalyst carrier. The carrier may be interpreted to indicate general formed bodies. For example, the carrier with the present invention can be also used as materials for sensors and electrodes, optical materials, semiconductors and structure materials. Furthermore, the carrier can be used for a three-way catalyst, NOx catalyst or oxidation catalyst or a part thereof, and a promoter.

摘要翻译： 复合氧化物和复合氧化物载体通过前体形成步骤和烧制步骤制造。 前体形成步骤包括高速混合装置。 复合氧化物催化剂通过在形成复合氧化物的前体的步骤中同时制备复合氧化物的前体同时制备复合材料而获得。 复合氧化物和复合氧化物载体由铈和锆中的至少一种和铝均匀分散的复合氧化物组成。 通过这种结构，能够提高载体的耐热性，可以抑制复合氧化物的粒子的扩大，能够抑制复合氧化物的相邻粒子的烧结，由此使用复合氧化物载体 本发明耐热性优异。 通过本发明，载体不限于一般的催化剂载体。 载体可以被解释为指示一般成形体。 例如，本发明的载体也可以用作传感器和电极，光学材料，半导体和结构材料的材料。 此外，载体可用于三元催化剂，NOx催化剂或氧化催化剂或其一部分和促进剂。

公开(公告)号：US07247597B2

公开(公告)日：2007-07-24

申请号：US10225186

申请日：2002-08-22

申请人： Akira Morikawa ,  Yasutaka Nagai ,  Toshitaka Tanabe ,  Tadashi Suzuki ,  Akihiko Suda ,  Hideo Sobukawa

发明人： Akira Morikawa ,  Yasutaka Nagai ,  Toshitaka Tanabe ,  Tadashi Suzuki ,  Akihiko Suda ,  Hideo Sobukawa

IPC分类号： B01J23/00 ,  C01G49/00 ,  C04B35/48

CPC分类号： B01J35/002 ,  B01D2255/1021 ,  B01D2255/2065 ,  B01D2255/20715 ,  B01D2255/407 ,  B01D2255/908 ,  B01J21/066 ,  B01J23/10 ,  B01J23/63 ,  B01J35/023 ,  B01J35/1014 ,  B01J37/03 ,  F01N2570/16

摘要： A composite oxide includes CeO2, ZrO2 and a metallic oxide being free from reacting with CeO2 and ZrO2 at 700° C. or more, preferably at 900° C. or more and further preferably at 1,000° C. or more. The composite oxide has a regulatory oriented phase, such as a pyrochlore phase, etc., in which at least a part of Ce cations and Zr cations are oriented regularly. The composite oxide makes a catalytic support. The CeO2—ZrO2 composite oxide and the reaction-free metallic oxide make barriers each other which suppress the granular growth when the composite oxide is subjected to high-temperature heat in a reducing heat treatment to form the regulatory oriented phase. The regulatory oriented phase improves the oxygen storage-and-release capability of the catalytic support. Thus, it is possible to simultaneously attain a large a specific surface area and a high oxygen storage-and-release capability.

摘要翻译： 复合氧化物包括CeO 2 SiO 2，ZrO 2 2和不与CeO 2和ZrO 2的反应的金属氧化物 > 700℃以上，优选为900℃以上，进一步优选为1000℃以上。 复合氧化物具有调节取向相，如烧绿石相等，其中至少一部分Ce阳离子和Zr阳离子定期取向。 复合氧化物起催化作用。 当复合氧化物经受高温加热时，CeO 2 -ZrO 2复合氧化物和无反应的金属氧化物形成彼此的屏障，其抑制颗粒生长 一种还原热处理，形成规范导向相。 调节取向相提高了催化支持物的储氧和释放能力。 因此，可以同时获得大的比表面积和高的储氧 - 释放能力。

公开(公告)号：US06335305B1

公开(公告)日：2002-01-01

申请号：US09547347

申请日：2000-04-11

申请人： Tadashi Suzuki ,  Akira Morikawa ,  Hideo Sobukawa

发明人： Tadashi Suzuki ,  Akira Morikawa ,  Hideo Sobukawa

IPC分类号： B01J2300

CPC分类号： B01D53/945 ,  B01J23/63 ,  B01J37/03 ,  Y02T10/22

摘要： A catalyst for purifying an exhaust gas includes a support and a noble metal loaded on the support. The support includes a mixture containing a porous oxide and a composite oxide. The composite oxide is expressed by the following formula: (Al2O3)a(CeO2)b(ZrO2)1−b in which the values “a” and “b” are molar ratios and the value “a” falls in a range of from 0.4 to 2.5 and the value “b” falls in a range of from 0.2 to 0.7. The support includes a particle having a particle diameter of 5 &mgr;m or more in an amount of 30% by volume or more. With the thus arranged support, even when the catalyst is subjected to such a severe durability test that it is heated at 1,000° C. for 10 to 20 hours, it exhibits a high purifying activity, and its coating layer is inhibited from cracking or coming off.

摘要翻译： 用于净化废气的催化剂包括负载在载体上的载体和贵金属。 载体包括含有多孔氧化物和复合氧化物的混合物。 复合氧化物由下式表示：其中值“a”和“b”是摩尔比，值“a”在0.4至2.5的范围内，并且值“b”落在 从0.2到0.7。 该载体包含30体积％以上的粒径为5μm以上的粒子。 通过这样排列的支撑体，即使催化剂进行如此严格的耐久试验，即在1000℃下加热10〜20小时，显示出高的净化活性，并且其涂层被抑制开裂或开始 关闭

公开(公告)号：US06306794B1

公开(公告)日：2001-10-23

申请号：US09604263

申请日：2000-06-27

申请人： Tadashi Suzuki ,  Hideo Sobukawa

发明人： Tadashi Suzuki ,  Hideo Sobukawa

IPC分类号： B01J2300

CPC分类号： B01D53/945 ,  B01D53/9413 ,  B01D2255/1021 ,  B01D2255/1025 ,  B01D2255/2042 ,  B01D2255/2063 ,  B01D2255/2065 ,  B01D2255/2092 ,  B01D2255/908 ,  B01D2255/9202 ,  B01D2255/9207 ,  B01J23/10 ,  B01J37/0236 ,  Y02T10/22

摘要： The composite oxide and the composite oxide carrier are manufactured by the precursor forming step and firing step. The composite oxide catalyst is obtained by preparing a composite of catalytic components simultaneously with the formation of the precursor of composite oxide in the step of forming the precursor of composite oxide. The composite oxide and the composite oxide carrier are composed of a composite oxide in which at least one of cerium and zirconium, and aluminium disperse with extremely high homogeneity. With this structure, the heat resistance of the carrier is improved and consequently, enlargement of particles of the composite oxide defining the carrier, and sintering of adjacent particles of the composite oxide can be restrained, whereby the catalyst using the composite oxide carrier in accordance with the present invention is excellent in heat resistance.

摘要翻译： 复合氧化物和复合氧化物载体通过前体形成步骤和烧制步骤制造。 复合氧化物催化剂通过在形成复合氧化物的前体的步骤中同时制备复合氧化物的前体同时制备复合材料而获得。 复合氧化物和复合氧化物载体由铈和锆中的至少一种和铝均匀分散的复合氧化物组成。 通过这种结构，能够提高载体的耐热性，可以抑制复合氧化物的粒子的扩大，能够抑制复合氧化物的相邻粒子的烧结，由此使用复合氧化物载体 本发明耐热性优异。

公开(公告)号：US5958827A

公开(公告)日：1999-09-28

申请号：US758807

申请日：1996-12-04

申请人： Akihiko Suda ,  Hideo Sobukawa ,  Tadashi Suzuki ,  Toshio Kandori ,  Yoshio Ukyo ,  Masahiro Sugiura ,  Mareo Kimura ,  Hiroshi Hirayama ,  Yasuo Ikeda

发明人： Akihiko Suda ,  Hideo Sobukawa ,  Tadashi Suzuki ,  Toshio Kandori ,  Yoshio Ukyo ,  Masahiro Sugiura ,  Mareo Kimura ,  Hiroshi Hirayama ,  Yasuo Ikeda

IPC分类号： B01D53/94 ,  B01J23/10 ,  B01J23/63 ,  B01J35/00 ,  B01J37/03

CPC分类号： B01D53/945 ,  B01J23/10 ,  B01J23/63 ,  B01J35/002 ,  B01J37/03 ,  B01D2255/206 ,  B01D2255/20715 ,  B01D2255/40 ,  B01J35/006 ,  Y02T10/22

摘要： A solid solution particle of oxides contains a solid solution of oxides in which one oxide is dissolved into the other oxide, and in which the degree of dissolution of one oxide into the other oxide is not less 50%, and in which an average diameter of crystallite is not more than 100 nm. The solid solution particle of oxides has small average diameter of a crystallite and large specific surface area, and it improves capacities such as an oxygen storage ability due to high degree of dissolution. A catalyst for purifying exhaust gases has excellent purifying performance by employing the solid solution comprising ceria and zirconia which has large OSC and high oxygen adsorption and discharge speed.

摘要翻译： 氧化物的固溶体含有氧化物的固溶体，其中一种氧化物溶解在另一种氧化物中，其中一种氧化物溶解在另一种氧化物中的程度不低于50％，其中平均直径 微晶不超过100nm。 氧化物的固溶颗粒具有微晶的平均直径小并且比表面积大，并且由于高溶解度而提高诸如储氧能力的容量。 用于净化废气的催化剂通过使用包含具有大的OSC和高氧吸附和排出速度的二氧化铈和氧化锆的固溶体而具有优异的净化性能。

公开(公告)号：US5270024A

公开(公告)日：1993-12-14

申请号：US575621

申请日：1990-08-31

申请人： Senshi Kasahara ,  Katsumi Kamiyama ,  Kazushige Igawa ,  Shinichi Matsumoto ,  Masayuki Fukui ,  Tadashi Suzuki ,  Shiroh Kondoh ,  Koji Yokota ,  Shinichi Takeshima ,  Kazunobu Ishibashi ,  Masao Nakano

发明人： Senshi Kasahara ,  Katsumi Kamiyama ,  Kazushige Igawa ,  Shinichi Matsumoto ,  Masayuki Fukui ,  Tadashi Suzuki ,  Shiroh Kondoh ,  Koji Yokota ,  Shinichi Takeshima ,  Kazunobu Ishibashi ,  Masao Nakano

IPC分类号： B01D53/94 ,  B01J29/072 ,  B01J8/06 ,  B01D53/36

CPC分类号： B01D53/945 ,  B01J29/072 ,  Y02T10/22

摘要： A catalyst for reducing nitrogen oxides from an exhaust gas containing the same in an oxygen rich atmosphere comprising (i) a zeolite having a molar ratio of SiO.sub.2 /Al.sub.2 O.sub.3 of at least 10, (ii) copper, and (iii) a rare earth ion, an alkaline earth metal and/or a valence variable metal.

公开(公告)号：US5575983A

公开(公告)日：1996-11-19

申请号：US311360

申请日：1994-09-23

申请人： Hiromasa Suzuki ,  Koji Yokota ,  Tomoko Iijima ,  Tadashi Suzuki ,  Koichi Kasahara ,  Syuji Tateishi

发明人： Hiromasa Suzuki ,  Koji Yokota ,  Tomoko Iijima ,  Tadashi Suzuki ,  Koichi Kasahara ,  Syuji Tateishi

IPC分类号： B01D53/86 ,  B01D53/94 ,  B01J23/58 ,  B01J23/63 ,  F01N3/10 ,  B01J23/04

CPC分类号： B01D53/945 ,  B01J23/58 ,  Y02T10/22

摘要： A process for purifying an exhaust gas comprising carbon monoxide, hydrocarbons, nitrogen oxides, and sulfur oxides by periodically adjusting exhaust gas conditions from lean-burn to fuel-rich and by using a catalyst comprising an alumina support with lithium dissolved therein to form a solid solution, at least one first ingredient selected from the group consisting of platinum and palladium loaded on the alumina support, and at least one second ingredient selected from the group consisting of alkali elements, alkaline-earth elements, and rare-earth elements loaded on the support. Sulfates formed from sulfur oxides in the exhaust gas are decomposed by the lithium under the fuel-rich conditions to inhibit the alumina support from being acidified.

摘要翻译： 通过周期性地调节从贫燃到富燃料的废气条件和通过使用包含溶解有锂的氧化铝载体的催化剂以形成固体来净化包含一氧化碳，烃，氮氧化物和硫氧化物的废气的方法 溶液，选自负载在氧化铝载体上的铂和钯的至少一种第一成分和选自负载在氧化铝载体上的碱金属元素，碱土金属元素和稀土元素的至少一种第二成分 支持。 在废气中由硫氧化物形成的硫酸盐在富燃料条件下被锂分解，以抑制氧化铝载体的酸化。

公开(公告)号：US09387464B2

公开(公告)日：2016-07-12

申请号：US14384283

申请日：2013-04-26

申请人： Masahide Miura ,  Atsushi Tanaka ,  Takahiro Suzuki ,  Tadashi Suzuki ,  Toshitaka Tanabe ,  Naoki Takahashi

发明人： Masahide Miura ,  Atsushi Tanaka ,  Takahiro Suzuki ,  Tadashi Suzuki ,  Toshitaka Tanabe ,  Naoki Takahashi

IPC分类号： B01J23/00 ,  B01J23/08 ,  B01J23/10 ,  B01J23/40 ,  B01J23/42 ,  B01J23/44 ,  B01J23/56 ,  B01J23/70 ,  B01J23/74 ,  B01J23/89 ,  B01J35/00 ,  B01J23/745 ,  B01J23/83 ,  C01G25/00 ,  C01G49/00 ,  B01J37/02 ,  B01J37/03

CPC分类号： B01J23/894 ,  B01J21/066 ,  B01J23/10 ,  B01J23/745 ,  B01J23/83 ,  B01J35/0006 ,  B01J35/002 ,  B01J37/0248 ,  B01J37/03 ,  C01G25/00 ,  C01G49/0018 ,  C01G49/0054 ,  C01P2002/72 ,  C01P2004/03 ,  C01P2004/32 ,  C01P2004/45 ,  C01P2004/61 ,  C01P2006/12

摘要： A composite oxide with a high oxygen storage capacity is provided without using cerium. The composite oxide is an iron oxide-zirconia composite oxide containing iron, zirconium, and a rare-earth element. The total content of Fe2O3, ZrO2, and an oxide of the rare-earth element is not less than 90 mass %, the content of an iron oxide in terms of Fe2O3 is 10 to 90 mass %, and the absolute value of the covariance COV(Fe, Zr+X) of the composite oxide, which has been baked in the atmosphere at a temperature of greater than or equal to 900° C. for 5 hours or more, is not greater than 20.

摘要翻译： 提供具有高储氧能力的复合氧化物，而不使用铈。 复合氧化物是含有铁，锆和稀土元素的氧化铁 - 氧化锆复合氧化物。 Fe2O3，ZrO2和稀土类元素的氧化物的总含量为90质量％以上，Fe 2 O 3的氧化铁含量为10〜90质量％，协方差COV的绝对值 在大气中在大气压900℃以上焙烧5小时以上的复合氧化物（Fe，Zr + X）不大于20。