-
公开(公告)号：EP1900416A3
公开(公告)日：2009-04-01
申请号：EP07115256.5
申请日：2007-08-30
发明人： Miyoshi, Seiji , Iwakuni, Hideharu , Minoshima, Koji , Yamada, Hiroshi , Akamine, Masaaki , Takami, Akihide
CPC分类号： B01D53/945 , B01D53/9477 , B01D2255/1021 , B01D2255/1023 , B01D2255/1025 , B01D2255/206 , B01D2255/20715 , B01D2255/2092 , B01D2255/40 , B01D2255/407 , B01D2255/9022 , B01J23/002 , B01J23/63 , B01J37/0221 , B01J37/0242 , B01J37/0244 , B01J37/0248 , B01J37/03 , B01J2523/00 , F01N3/10 , F01N3/101 , F01N13/009 , F01N13/0093 , F01N2510/06 , Y02T10/22 , B01J2523/31 , B01J2523/36 , B01J2523/3706 , B01J2523/3712 , B01J2523/48 , B01J2523/37
摘要： An upstream catalyst (3) and a downstream catalyst (4) are disposed in an exhaust passage (2) of an engine (1). The downstream catalyst (4) contains in the same catalyst layer thereof Rh-doped CeZrNd mixed oxide particles on which Rh is supported and active alumina particles on which Pt is supported. The upstream catalyst (3) is a three-way catalyst containing an oxygen storage component having a lower oxygen storage capacity than the Rh-doped CeZrNd mixed oxide.
-
公开(公告)号：EP1900416A2
公开(公告)日：2008-03-19
申请号：EP07115256.5
申请日：2007-08-30
发明人： Miyoshi, Seiji , Iwakuni, Hideharu , Minoshima, Koji , Yamada, Hiroshi , Akamine, Masaaki , Takami, Akihide
CPC分类号： B01D53/945 , B01D53/9477 , B01D2255/1021 , B01D2255/1023 , B01D2255/1025 , B01D2255/206 , B01D2255/20715 , B01D2255/2092 , B01D2255/40 , B01D2255/407 , B01D2255/9022 , B01J23/002 , B01J23/63 , B01J37/0221 , B01J37/0242 , B01J37/0244 , B01J37/0248 , B01J37/03 , B01J2523/00 , F01N3/10 , F01N3/101 , F01N13/009 , F01N13/0093 , F01N2510/06 , Y02T10/22 , B01J2523/31 , B01J2523/36 , B01J2523/3706 , B01J2523/3712 , B01J2523/48 , B01J2523/37
摘要： An upstream catalyst (3) and a downstream catalyst (4) are disposed in an exhaust passage (2) of an engine (1). The downstream catalyst (4) contains in the same catalyst layer thereof Rh-doped CeZrNd mixed oxide particles on which Rh is supported and active alumina particles on which Pt is supported. The upstream catalyst (3) is a three-way catalyst containing an oxygen storage component having a lower oxygen storage capacity than the Rh-doped CeZrNd mixed oxide.
摘要翻译： 在发动机（1）的排气通道（2）中设置有上游催化剂（3）和下游催化剂（4）。 下游催化剂（4）在与其上负载有Rh的Rh掺杂CeZrNd混合氧化物颗粒和负载有Pt的活性氧化铝颗粒的相同催化剂层中包含。 上游催化剂（3）是含有比Rh掺杂的CeZrNd混合氧化物具有更低的储氧能力的储氧组分的三元催化剂。
-
公开(公告)号：EP1728552A1
公开(公告)日：2006-12-06
申请号：EP06113863.2
申请日：2006-05-12
CPC分类号： B01D53/945 , B01D2255/1025 , B01D2255/407 , B01D2255/908 , B01J21/066 , B01J23/002 , B01J23/10 , B01J23/63 , B01J37/0244 , B01J2523/00 , Y02T10/22 , B01J2523/3712 , B01J2523/3725 , B01J2523/48 , B01J2523/822
摘要： In an exhaust gas purification catalyst, particles (12) of a catalytic metal-doped, Ce-Zr-based second mixed oxide are carried on the surfaces of particles (11) of a Ce-Zr-based first mixed oxide. The second mixed oxide contains Ce and Zr as metals forming its constituents. Catalytic metal atoms (13) are placed at least one of at and between crystal lattice points of the second mixed oxide. The first mixed oxide contains Ce and Zr as metals forming its constituents but no catalytic metal. Thus, the concentration of catalytic metal on the surfaces of catalyst particles is increased.
摘要翻译： 在废气净化催化剂中，在Ce-Zr系第一混合氧化物的粒子（11）的表面担载催化剂金属掺杂Ce-Zr系第二混合氧化物的粒子（12）。 第二混合氧化物含有Ce和Zr作为构成其成分的金属。 催化金属原子（13）位于第二混合氧化物的晶格点之中和之间的至少一个处。 第一混合氧化物含有Ce和Zr作为形成其成分但不含催化金属的金属。 因此，催化剂颗粒表面上的催化金属浓度增加。
-
公开(公告)号：EP0896134A3
公开(公告)日：2000-06-28
申请号：EP98114827.3
申请日：1998-08-06
发明人： Takami, Akihide , Iwakuni, Hideharu , Kyogoku, Makoto , Yamada, Hiroshi , Okamoto, Kenji , Taga, Junichi , Watanabe, Tomomi , Nishimura, Hirofumi , Nakazumi, Tadataka , Kuji, Youichi , Kuroki, Masayuki
CPC分类号： F01N3/0842 , B01D53/9495 , B01D2251/204 , B01D2255/1021 , B01D2255/204 , B01D2255/91 , B01D2255/912 , F01N2570/04 , F01N2570/16 , F02B2075/125 , F02D41/028 , F02D41/3023 , F02D41/402 , F02D2041/389 , F02M45/02 , Y02A50/2348 , Y02T10/123
摘要： An exhaust gas purifying system includes an exhaust gas purifying catalyst (14) having a nitrogen oxide absorbing material which is installed in an exhaust line (13) of an engine (1) and performs split fuel injection to inject fuel directly into each combustion chamber (5) 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.
-
公开(公告)号：EP2298444A1
公开(公告)日：2011-03-23
申请号：EP10168494.2
申请日：2010-07-06
发明人： Akamine, Masaaki , Iwakuni, Hideharu , Kawabata, Hisaya , Ochi, Yasuhiro , Murakami, Yuki , Mineoi, Susumu , Takami, Akihide , Shigetsu, Masahiko
CPC分类号： B01J23/63 , B01D53/945 , B01D2255/1025 , B01D2255/2061 , B01D2255/2068 , B01D2255/407 , B01D2255/9022 , B01D2255/9202 , B01D2258/014 , B01J23/002 , B01J35/0006 , B01J35/0013 , B01J35/002 , B01J35/023 , B01J37/0036 , B01J37/0244 , B01J37/0248 , B01J2523/00 , Y02T10/22 , B01J2523/3712 , B01J2523/3725 , B01J2523/48 , B01J2523/822 , B01J2523/31 , B01J2523/3706
摘要： A catalyst layer (2) includes: a first mixed oxide particle component (4) which contains Ce and Rh (8) and in which Rh is partially exposed at particle surfaces; and a second mixed oxide particle component (5) containing Ce, Zr, and a rare earth metal except Ce. The particle size distribution of the first mixed oxide particle component (4) has a peak in the particle size range from 100 nm to 300 nm, both inclusive. The particle size distribution of the second mixed oxide particle component (5) has a peak in a particle size range larger than the particle size range in which the first mixed oxide particle component (4) has the peak. At least part of particles of the first mixed oxide particle component (4) is attached to at least part of particles of the second mixed oxide particle component (5).
摘要翻译： 催化剂层（2）包括：含有Ce和Rh（8）的第一混合氧化物颗粒组分（4），其中Rh在颗粒表面部分暴露; 以及除了Ce以外含有Ce，Zr和稀土金属的第二混合氧化物粒子成分（5）。 第一混合氧化物粒子成分（4）的粒径分布在100nm〜300nm的粒径范围内具有峰值。 第二混合氧化物粒子成分（5）的粒径分布在比第一混合氧化物粒子成分（4）具有峰值的粒径范围大的粒径范围内具有峰值。 第一混合氧化物颗粒组分（4）的至少部分颗粒附着到第二混合氧化物颗粒组分（5）的至少一部分颗粒。
-
公开(公告)号：EP2127729A1
公开(公告)日：2009-12-02
申请号：EP09158900.2
申请日：2009-04-28
发明人： Akamine, Masaaki , Shigetsu, Masahiko , Sumida, Hirosuke , Fukushima, Tatsuto , Miyoshi, Seiji , Yamada, Hiroshi , Iwakuni, Hideharu , Harada, Koichiro
CPC分类号： B01D53/945 , B01D2251/2062 , B01D2251/2067 , B01D2255/1021 , B01D2255/1025 , B01D2255/206 , B01D2255/20715 , B01D2255/20738 , B01D2255/2092 , B01D2255/407 , B01D2255/50 , B01D2255/908 , B01D2255/91 , B01D2255/9202 , B01D2258/012 , B01D2258/014 , B01J21/066 , B01J23/83 , B01J23/894 , B01J29/06 , B01J29/7007 , B01J37/0215 , Y02T10/22
摘要： An exhaust gas purification catalyst includes a catalyst layer (2) formed on a support (1). The catalyst layer (2) contains Ce-containing oxide particles (3) having an oxygen storage/release capacity and a catalytic metal (5). The catalyst layer (2) further contains a large number of iron oxide particles (4) of 300 nm diameter or less that are dispersed therein and are in contact with the Ce-containing oxide particles (3). When observed by electron microscopy, the proportion of the area of iron oxide particles (4) of 300 nm diameter or less to the total area of all of iron oxide particles in the catalyst layer (2) is 30% or more.
摘要翻译： 废气净化催化剂包括形成在载体（1）上的催化剂层（2）。 催化剂层（2）含有具有氧储放能力的含Ce氧化物粒子（3）和催化剂金属（5）。 催化剂层（2）还包含分散在其中并与含Ce氧化物颗粒（3）接触的大量直径为300nm或更小的氧化铁颗粒（4）。 用电子显微镜观察时，300nm直径以下的氧化铁粒子（4）的面积相对于催化剂层（2）中的全部氧化铁粒子的总面积的比例为30％以上。
-
公开(公告)号：EP0931590B1
公开(公告)日：2004-09-08
申请号：EP99101473.9
申请日：1999-01-27
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
-
18.发明公开Exhaust gas purifying catalyst and system and method of producing the catalyst 审中-公开排气净化用催化剂和制备该催化剂的系统和方法
公开(公告)号：EP0905354A3
公开(公告)日：2000-03-01
申请号：EP98307820.5
申请日：1998-09-25
发明人： Sumida, Hirosuke , Koda, Yuki , Kyogoku, Makoto , Iwakuni, Hideharu , Yamada, Hiroshi , Okamoto, Kenji , Takami, Akihide
CPC分类号： F01N3/0842 , B01D53/9481 , B01D53/949 , B01D2255/2042 , B01D2255/9025 , F01N3/0807 , F01N3/0814 , F01N3/085 , F01N3/0871 , F02B2075/125 , F02D41/0275 , F02D41/0285
摘要： An exhaust gas purifying system and a catalyst (14,31) used for the system prevents NOx absorbent from being poisoned by a sulphur compound to keep NOx absorption performance. The catalyst has at least an inner (26) and an outer layer (28,29) on a support material (25), the inner layer having NOx absorbent capable of absorbing NOx and a sulphur compound in the exhaust gas produced from combustion of a lean fuel mixture, releasing the NOx into the exhaust gas and substantially stopping absorbing the sulphur compound when a rich mixture is burnt, and the outer layer having a sulphur compound absorbent capable of absorbing the sulphur compound in the exhaust gas produced from combustion of a lean fuel mixture and capable of discharging the sulphur compound into the exhaust gas when a rich fuel mixture is burnt while the engine operates in a lean-burn zone. NOx is absorbed by the NOx absorbent in the inner layer and the sulphur compound is absorbed in the sulphur compound absorbent in the outer layer. Therefore the NOx absorbent in the inner layer is protected from being poisoned by the sulphur compound.
-
公开(公告)号：EP0896134A2
公开(公告)日：1999-02-10
申请号：EP98114827.3
申请日：1998-08-06
发明人： Takami, Akihide , Iwakuni, Hideharu , Kyogoku, Makoto , Yamada, Hiroshi , Okamoto, Kenji , Taga, Junichi , Watanabe, Tomomi , Nishimura, Hirofumi , Nakazumi, Tadataka , Kuji, Youichi , Kuroki, Masayuki
CPC分类号： F01N3/0842 , B01D53/9495 , B01D2251/204 , B01D2255/1021 , B01D2255/204 , B01D2255/91 , B01D2255/912 , F01N2570/04 , F01N2570/16 , F02B2075/125 , F02D41/028 , F02D41/3023 , F02D41/402 , F02D2041/389 , F02M45/02 , Y02A50/2348 , Y02T10/123
摘要： An exhaust gas purifying system includes an exhaust gas purifying catalyst (14) having a nitrogen oxide absorbing material which is installed in an exhaust line (13) of an engine (1) and performs split fuel injection to inject fuel directly into each combustion chamber (5) 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： 废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（14），该排气净化催化剂安装在发动机（1）的排气管线（13）中并进行分流燃料喷射以将燃料直接喷射到每个燃烧室（ 5）部分地在吸入冲程期间并且部分地在压缩冲程期间向氮氧化物吸收材料提供和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。
-
-
-
-
-
-
-
-
搜索结果
19 条记录 (耗时 0.015 秒)
