公开(公告)号：US06191061B1

公开(公告)日：2001-02-20

申请号：US09402492

申请日：1999-12-29

申请人： Toshihiro Takada ,  Hiroaki Takahashi ,  Masaru Ishii ,  Saeko Kurachi

发明人： Toshihiro Takada ,  Hiroaki Takahashi ,  Masaru Ishii ,  Saeko Kurachi

IPC分类号： B01J2906

CPC分类号： B01D53/9418 ,  B01D2255/102 ,  B01D2255/2073 ,  B01D2255/20738 ,  B01D2255/504 ,  B01D2255/912 ,  B01J29/068 ,  B01J37/0246

摘要： In an exhaust gas in an oxygen-rich atmosphere, a method of purifying an exhaust gas and a catalyst for purifying an exhaust gas, which can exhibit a high NOx conversion securely, are provided. Disclosed is a method of purifying an exhaust gas that reduces and purifies NOx in an exhaust gas in an oxygen-rich atmosphere. Here, as a catalyst for purifying an exhaust gas, a loading layer comprising zeolite is loaded with alumina sulfate and cerium sulfate-zirconium composite oxide, and Pt is loaded on these. And, in a temperature range where HC are not oxidized, the HC are adsorbed and held by the zeolite, the HC, which the zeolite releases at the temperature increment, are subjected to cracking by the zeolite, the alumina sulfate and the cerium sulfate-zirconium composite oxide, and the thus produced low-grade HC are turned into reducing agents, thereby reducing and purifying the NOx in the exhaust gas.

摘要翻译： 在富氧气氛中的废气中，提供了可以显示高NOx转化率的废气净化方法和净化废气的催化剂。 公开了一种净化排气的方法，其减少和净化富氧气氛中的废气中的NOx。 这里，作为净化废气的催化剂，负载有负载层的沸石负载有硫酸铝和硫酸铈 - 锆复合氧化物，并且在其上装载Pt。 并且，在HC不被氧化的温度范围内，HC被沸石吸附并保持，沸石以温度增量释放的HC通过沸石，硫酸铝和硫酸铈 - 锆复合氧化物，并将由此生产的低品位HC转化为还原剂，从而减少和净化废气中的NOx。

公开(公告)号：US06559086B1

公开(公告)日：2003-05-06

申请号：US09486819

申请日：2000-03-02

申请人： Hiroaki Takahashi ,  Toshihiro Takada ,  Saeko Kurachi

发明人： Hiroaki Takahashi ,  Toshihiro Takada ,  Saeko Kurachi

IPC分类号： B01J2100

CPC分类号： B01D53/945 ,  B01D53/9418 ,  B01D2255/1021 ,  B01D2255/2022 ,  B01D2255/2025 ,  B01D2255/2042 ,  B01D2255/2047 ,  B01D2255/50 ,  B01D2255/912 ,  B01J29/068 ,  B01J29/084 ,  B01J29/18 ,  B01J29/22 ,  B01J29/40 ,  B01J29/44 ,  B01J29/65 ,  B01J29/67 ,  B01J29/80 ,  B01J35/04 ,  B01J37/0246 ,  B01J37/0248 ,  F01N3/0814 ,  F01N3/0835 ,  F01N3/0842 ,  F01N3/206 ,  Y02T10/22

摘要： An exhaust-gas-purifying catalyst wherein a first zeolite loaded with a catalyst metal and a second zeolite unloaded with a catalyst metal are mixed. By actively adsorbing HC onto the second zeolite, it is possible to inhibit the catalyst metal loaded on the first zeolite from being poisoned by HC, and to sufficiently adsorb HC. Accordingly, since the HC adsorbing capability is improved, and since the HC poisoning of the catalyst metal is suppressed, the NOx purifying capability is enhanced and the durability is also upgraded.

摘要翻译： 一种废气净化催化剂，其中装载催化剂金属的第一沸石和卸载有催化剂金属的第二沸石混合。 通过主动地将HC吸附到第二沸石上，可以抑制负载在第一沸石上的催化剂金属被HC中毒并充分吸附HC。 因此，由于HC吸附能力提高，并且由于抑制了催化剂金属的HC中毒，因此提高了NOx净化能力，并且还提高了耐久性。

公开(公告)号：US5304351A

公开(公告)日：1994-04-19

申请号：US790497

申请日：1991-11-12

申请人： Takashi Tanaka ,  Mikio Yamanaka ,  Yutaka Sadano ,  Kouki Yotsuya ,  Yasushi Ishikawa ,  Toshihiro Takada

发明人： Takashi Tanaka ,  Mikio Yamanaka ,  Yutaka Sadano ,  Kouki Yotsuya ,  Yasushi Ishikawa ,  Toshihiro Takada

IPC分类号： B01D53/86 ,  B01J35/04 ,  F01N3/28 ,  F01N3/15

CPC分类号： B01J35/04 ,  F01N3/281 ,  F01N3/2842 ,  F01N2330/02 ,  F01N2450/02 ,  F01N2450/22 ,  Y10T428/24149

摘要： A semi-oval shaped metallic carrier having an excellent thermal stress resistance and thermal fatigue resistance and used for an automobile exhaust gas-purifying catalyst, in which the carrier is composed of a metallic honeycomb body constituted by superimposing flat metal foils and corrugated metal foils one on the other and winding them together, and a metallic jacket enclosing the lateral face of the honeycomb body, the transverse section of the metallic carrier constituting the parallel portions and semi-circular arc portions and the honeycomb body is joined to the jacket mainly at the semi-circular arc portions or at the parallel portions of the honeycomb body.

摘要翻译： 一种具有优异的耐热应力和耐热疲劳性的半椭圆形金属载体，用于汽车废气净化催化剂，其中载体由金属蜂窝体组成，该金属蜂窝体由叠置平板金属箔和波纹金属箔构成，一个 另一方面将它们缠绕在一起，并且包围蜂窝体的侧面的金属护套，构成平行部分和半圆弧部分的金属载体的横截面和蜂窝体主要在 半圆弧部分或蜂窝体的平行部分。

公开(公告)号：US5045404A

公开(公告)日：1991-09-03

申请号：US588434

申请日：1990-09-26

申请人： Keiichi Ohmura ,  Miko Yamanaka ,  Fumio Fudanoki ,  Masayuki Tendoh ,  Kenji Hirashima ,  Masaaki Kobayashi ,  Shinji Shibata ,  Tomoyuki Sugino ,  Toshihiro Takada ,  Yoshio Nishizawa ,  Akihiko Kasahara

发明人： Keiichi Ohmura ,  Miko Yamanaka ,  Fumio Fudanoki ,  Masayuki Tendoh ,  Kenji Hirashima ,  Masaaki Kobayashi ,  Shinji Shibata ,  Tomoyuki Sugino ,  Toshihiro Takada ,  Yoshio Nishizawa ,  Akihiko Kasahara

IPC分类号： C22C38/18 ,  F01N3/28 ,  F02B1/04

CPC分类号： F01N3/281 ,  C22C38/18 ,  F01N3/2807 ,  F02B1/04 ,  Y10T428/12431

摘要： A heat-resistant stainless steel foil for a catalyst-carrier of combustion exhaust gas purifiers, consisting essentially in weight percentage of:more than 0.06 up to 0.15 of Ln, the Ln being a mixture of La, Ce, Pr and Nd;from 8x(%Ln+0.015) /45 to 0.1 of P;from 4.5 to 6.5 of Al;from 13 to 25 of Cr;not more than 0.025 of C;not more than 0.02 of N;not more than 0.03 of C+N; andthe balance consisting of Fe and unavoidable impurities.

摘要翻译： 一种用于燃烧废气净化器的催化剂载体的耐热不锈钢箔，其重量百分比基本上以：大于0.06至0.15的Ln，Ln是La，Ce，Pr和Nd的混合物; 从8x（％Ln + 0.015）/ 45到0.1的P; 从4.5到6.5的Al; 从13到25的Cr; 不超过0.025的C; 不超过0.02的N; 不超过0.03的C + N; 余量由Fe和不可避免的杂质组成。

公开(公告)号：US5582803A

公开(公告)日：1996-12-10

申请号：US471446

申请日：1995-06-06

申请人： Kouji Yoshizaki ,  Takaaki Itou ,  Hiroshi Hirayama ,  Tetsuo Nagami ,  Masakatsu Sanada ,  Kiyohiko Watanabe ,  Osamu Fujishiro ,  Tohru Yoshinaga ,  Yukihiro Shinohara ,  Yasuyuki Kawabe ,  Toshihiko Igashira ,  Akihiro Izawa ,  Hiroaki Ichikawa ,  Kenichi Harada ,  Toshihiro Takada ,  Kazuhiro Sakurai ,  Masahiko Ogai

发明人： Kouji Yoshizaki ,  Takaaki Itou ,  Hiroshi Hirayama ,  Tetsuo Nagami ,  Masakatsu Sanada ,  Kiyohiko Watanabe ,  Osamu Fujishiro ,  Tohru Yoshinaga ,  Yukihiro Shinohara ,  Yasuyuki Kawabe ,  Toshihiko Igashira ,  Akihiro Izawa ,  Hiroaki Ichikawa ,  Kenichi Harada ,  Toshihiro Takada ,  Kazuhiro Sakurai ,  Masahiko Ogai

IPC分类号： F01N3/20 ,  F01N3/28 ,  F01N13/02 ,  H05B3/10 ,  H05B3/12

CPC分类号： H05B3/12 ,  F01N13/009 ,  F01N3/2026 ,  F01N3/28 ,  F01N3/281 ,  F01N3/2821 ,  H05B3/10 ,  F01N2330/04 ,  F01N2330/322 ,  F01N2330/38 ,  F01N2450/22 ,  Y02T10/26

摘要： An electrically heating catalytic apparatus that quickly heats catalyst to an activation temperature even when the engine is started at a low temperature below the catalyst activation temperature. The apparatus employs an electrically conductive catalyst carrier that is electrically heated. The carrier is provided with local hot spots to be energized. Since the heat is locally generated, the heat capacity of the catalyst carrier is small to shorten a temperature increasing time.

摘要翻译： 即使在低于催化剂活化温度的低温启动发动机时也能迅速将催化剂加热至活化温度的电加热催化装置。 该装置采用电加热的导电催化剂载体。 载体上设有通电的局部热点。 由于局部产生热量，所以催化剂载体的热容量小，以缩短升温时间。

公开(公告)号：US5497619A

公开(公告)日：1996-03-12

申请号：US268946

申请日：1994-06-30

申请人： Jun Yamada ,  Kenji Kanehara ,  Toshihiko Igashira ,  Shingo Morishima ,  Toshihiro Takada ,  Hiroshi Hirayama

发明人： Jun Yamada ,  Kenji Kanehara ,  Toshihiko Igashira ,  Shingo Morishima ,  Toshihiro Takada ,  Hiroshi Hirayama

IPC分类号： B01D53/94 ,  F01N3/08 ,  F01N3/24 ,  F01N13/02 ,  F01N13/04 ,  F02D41/00 ,  F02D41/02 ,  F02D41/14 ,  F02D43/00 ,  F02M25/07 ,  F02M5/06 ,  F01N3/28

CPC分类号： F01N13/011 ,  B01D53/9481 ,  B01D53/9495 ,  F01N13/009 ,  F01N3/0814 ,  F01N3/0835 ,  F01N3/0871 ,  F02D41/0055 ,  F02D41/027 ,  F02M26/14 ,  F02M26/35 ,  F01N2250/12 ,  F01N2260/022 ,  F02M26/55 ,  Y02T10/47

摘要： A bent portion (adsorption box) is formed in part of an exhaust pipe connecting exhaust ports and a catalyst for purifying HC or the like in the exhaust gas, and a HC adsorbent of a honeycomb structure is placed forward with respect to the direction in which the exhaust gas travels straight without turning at the bent portion. The exhaust gas flowing from the exhaust ports, turns, and flows into the exhaust pipe, but HC having a large particle size travels straight along rectifier blades to be adsorbed by the HC adsorbent and held for a while. During such process, the catalyst connected to the exhaust pipe is heated up to be activated, thereby for purifying the HC or the like which is desorbed by the temperature rise of the adsorbent. Another HC catalyst may be carried in the front of the adsorbent that is easily heated to a high temperature, or an EGR passage including an EGR control valve may be connected downstream from the adsorbent.

摘要翻译： 在连接排气口的排气管和用于净化排气中的HC等的催化剂的一部分中形成有弯曲部（吸附箱），蜂窝结构体的HC吸附剂相对于 废气直线行进而不在弯曲部分转动。 从排气口排出的废气流入排气管，但是流过排气管，但具有大粒径的HC沿着整流叶片直线行进，被HC吸附剂吸附并保持一段时间。 在此过程中，连接到排气管的催化剂被加热以被活化，从而净化由吸附剂的温度上升而解吸的HC等。 可以在容易加热到高温的吸附剂​​的前面携带另一种HC催化剂，或者可以将包括EGR控制阀的EGR通道连接在吸附剂的下游。

公开(公告)号：US5403558A

公开(公告)日：1995-04-04

申请号：US86376

申请日：1993-07-06

申请人： Takuo Kono ,  Mikio Yamanaka ,  Takashi Tanaka ,  Yasushi Ishikawa ,  Yutaka Sadano ,  Masao Yashiro ,  Tatuo Sugiura ,  Tadanobu Komai ,  Shinichi Matsumoto ,  Toshihiro Takada ,  Shinji Shibata ,  Hikaru Aoyagi ,  Masaaki Ohashi ,  Yoshio Nishizawa ,  Akihiko Kasahara

发明人： Takuo Kono ,  Mikio Yamanaka ,  Takashi Tanaka ,  Yasushi Ishikawa ,  Yutaka Sadano ,  Masao Yashiro ,  Tatuo Sugiura ,  Tadanobu Komai ,  Shinichi Matsumoto ,  Toshihiro Takada ,  Shinji Shibata ,  Hikaru Aoyagi ,  Masaaki Ohashi ,  Yoshio Nishizawa ,  Akihiko Kasahara

IPC分类号： B01J35/04 ,  F01N3/28 ,  F01N3/15

CPC分类号： F01N3/2853 ,  B01J35/04 ,  F01N3/281 ,  F01N2330/02 ,  F01N2330/322 ,  F01N2330/324 ,  F01N2350/04 ,  Y10S55/30

摘要： A metallic carrier composed of an end face portion formed in at least one of the axial end portions of a honeycomb body and an outer circumferential reinforcing layer in which foils in a range from the outermost layer to a quarter of the total number of layers are joined together in the axial intermediate portion. Thus, the metallic carrier is flexible in expansion and shrinkage. Further, the honeycomb body and a jacket are joined to each other mainly at the outer circumference of the outer circumferential reinforcing layer of the honeycomb body, to reduce thermal stress developed between the honeycomb body and jacket while maintaining the strength against a high temperature, to thereby prevent the metallic carrier from being ruptured.

摘要翻译： 由形成在蜂窝体的轴向端部中的至少一个端面部的端面部和外周增强层构成的金属载体，其中从最外层到总层数的四分之一的范围内的箔被接合 一起在轴向中间部分。 因此，金属载体在膨胀和收缩方面是柔性的。 此外，蜂窝体和护套主要在蜂窝体的外周增强层的外周彼此接合，以降低在蜂窝体和护套之间产生的热应力，同时保持对高温的强度， 从而防止金属载体破裂。

公开(公告)号：US4918042A

公开(公告)日：1990-04-17

申请号：US216687

申请日：1988-07-08

申请人： Toshihiro Takada ,  Shinichi Matsumoto ,  Hikaru Aoyagi ,  Mikio Yamanaka ,  Keiichi Ohmura ,  Toshiyuki Yashiro

发明人： Toshihiro Takada ,  Shinichi Matsumoto ,  Hikaru Aoyagi ,  Mikio Yamanaka ,  Keiichi Ohmura ,  Toshiyuki Yashiro

IPC分类号： B01D53/94 ,  B01J21/06 ,  B01J23/86 ,  B01J23/89 ,  B01J32/00 ,  B01J35/04 ,  B01J37/02 ,  F01N3/28

CPC分类号： B01D53/945 ,  B01J21/066 ,  B01J35/04 ,  B01J37/0225 ,  B01J37/024 ,  F01N3/281 ,  F01N2330/02 ,  F01N2510/06 ,  Y02T10/22

摘要： An exhaust gas purifying catalyst of this invention comprises a heat resistance stainless steel catalyst support, an oxide film containing zirconium oxide formed on the heat resistance stainless steel catalyst support, an activated alumina catalyst carrier layer formed on the oxide film, and at least one metal catalyst loaded in the activated alumina catalyst carrier layer. Thus, the activated alumina catalyst carrier layer's come-off from the catalyst support and the oxidation of the catalyst support are suppressed at the same time, and the conversions of the hydrocarbons (HC), carbon monoxide (CO) and nitrogen oxides (NOx) are also improved.

摘要翻译： 本发明的废气净化催化剂包括耐热不锈钢催化剂载体，在耐热不锈钢催化剂载体上形成的含有氧化锆的氧化物膜，在氧化膜上形成的活性氧化铝催化剂载体层和至少一种金属 负载在活性氧化铝催化剂载体层中的催化剂。 因此，活性氧化铝催化剂载体层从催化剂载体脱落和催化剂载体的氧化同时被抑制，并且烃（HC），一氧化碳（CO）和氮氧化物（NOx） 也得到改善。

公开(公告)号：US4849398A

公开(公告)日：1989-07-18

申请号：US82533

申请日：1987-08-07

申请人： Toshihiro Takada ,  Shinichi Matsumoto ,  Naoto Miyoshi

发明人： Toshihiro Takada ,  Shinichi Matsumoto ,  Naoto Miyoshi

IPC分类号： B01D53/94 ,  B01J23/54 ,  B01J23/56 ,  B01J23/58 ,  B01J23/63 ,  B01J37/02

CPC分类号： B01D53/945 ,  B01J23/58 ,  B01J23/63 ,  B01J37/024 ,  Y02T10/22 ,  Y10S502/525

摘要： A catalyst for purifying exhaust gases contains: a catalyst support, a perovskite double oxide comprising at least one alkaline earth metal oxide, lathanum oxide and cerium oxide, carried on the catalyst support, and noble metal catalyst components carried on the catalyst support.The catalyst for purifying exhaust gases according to the present invention offers an improved durability and purifying ratios for carbon monoxide CO, hydrocarbons HC and nitrogen oxides NOx.

摘要翻译： 用于净化废气的催化剂包含：载体在催化剂载体上的催化剂载体，包含至少一种碱土金属氧化物，氧化铟和氧化铈的钙钛矿双氧化物和载于催化剂载体上的贵金属催化剂组分。 根据本发明的用于净化废气的催化剂提供一氧化碳CO，烃HC和氮氧化物NOx的改进的耐久性和净化比。

公开(公告)号：US07846868B2

公开(公告)日：2010-12-07

申请号：US11808888

申请日：2007-06-13

申请人： Yusuke Itoh ,  Toshihiro Takada ,  Tatsuji Mizuno ,  Yoshiharu Miyake ,  Yoshihide Segawa

发明人： Yusuke Itoh ,  Toshihiro Takada ,  Tatsuji Mizuno ,  Yoshiharu Miyake ,  Yoshihide Segawa

IPC分类号： B01J21/04

CPC分类号： B01J37/0215 ,  B01J23/63 ,  B01J35/04 ,  B01J37/0242 ,  F01N3/0222 ,  Y02T10/20 ,  Y10T428/24149

摘要： A honeycomb-shaped substrate for catalyst is made from ceramic, has a straight-flow structure, and includes cellular walls exhibiting pore volumes, which differ partially, and a large number of cellular passages demarcated by the cellular walls. A catalyst for purifying exhaust gases is produced by providing the cellular walls of the honeycomb-shaped substrate with a catalytic coating layer.

摘要翻译： 用于催化剂的蜂窝状基材由陶瓷制成，具有直流结构，并且包括表现出部分不同的孔体积的细胞壁和由细胞壁划分的大量细胞通道。 用于净化废气的催化剂是通过提供蜂窝状基材的多孔壁来制备催化涂层的。