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1.发明公开CATALYST FOR PURIFYING EXHAUST GAS, METHOD OF REGENERATING THE SAME, EXHAUST GAS PURIFICATION APPARATUS USING THE SAME AND METHOD OF PURIFYING EXHAUST GAS 审中-公开催化剂的清洁尾气的再生方法，排放控制装置及正确操作的用于清洁排气
公开(公告)号：EP2000202A1
公开(公告)日：2008-12-10
申请号：EP06823547.2
申请日：2006-12-01
发明人： HATANAKA, Miho , TANABE, Toshitaka , NAGAI, Yasutaka , YAMAMOTO, Toshio , DOHMAE, Kazuhiko , TAKAGI, Nobuyuki , MIURA, Masahide , IKEDA, Yasuo
CPC分类号： B01D53/945 , B01D2255/102 , B01J23/002 , B01J23/63 , B01J23/894 , B01J23/8946 , B01J23/96 , B01J35/006 , B01J35/0066 , B01J35/1014 , B01J37/0201 , B01J37/0205 , B01J37/0207 , B01J37/03 , B01J38/10 , B01J38/12 , B01J2523/00 , F01N3/2006 , F01N11/002 , F01N2550/02 , Y02T10/22 , Y02T10/47 , B01J2523/3706 , B01J2523/48 , B01J2523/3712 , B01J2523/3718 , B01J2523/36
摘要： A catalyst for purification of exhaust gas in which a noble metal is supported on a metal-oxide support wherein, in a oxidation atmosphere, the noble metal exists on the surface of the support in high oxidation state, and the noble metal binds with a cation of the support via an oxygen atom on the surface of the support to form a surface oxide layer and, in a reduction atmosphere, the noble metal exists on the surface of the support in a metal state, and an amount of noble metal exposed at the surface of the support, measured by CO chemisorption, is 10% or more in atomic ratio to a whole amount of the noble metal supported on the support.
摘要翻译： 一种用于在其中贵金属被负载在金属氧化物载体worin，在氧化气氛中的废气净化催化剂中，贵金属存在于高氧化态的支持体的表面上，并且所述贵金属与阳离子结合 的经由所述支撑体的表面上氧原子的支持，以形成一表面氧化层，并在还原气氛中，贵金属存在于金属状态下的载体的表面上，并且在贵金属量在暴露 支撑，通过CO化学吸附测量的表面，是支撑在载体上的贵金属的总量的10％或更多的原子比。
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公开(公告)号：EP4360743A1
公开(公告)日：2024-05-01
申请号：EP23202669.0
申请日：2023-10-10
发明人： NISHIO, Takahiro , TAKAGI, Nobuyuki , TOJO, Takumi , SHIRAKAWA, Shogo , SHIMIZU, Kengo , HOSHINO, Sho , SAKAMOTO, Shun , TODA, Yosuke
CPC分类号： B01D53/945 , B01D2255/102120130101 , B01D2255/102320130101 , B01D2255/102520130101 , B01D2255/40720130101 , B01D2255/903220130101 , B01D2255/902220130101 , B01D2255/90820130101 , B01D2255/920220130101 , B01D2258/01420130101 , B01J23/63 , B01J35/57 , F01N3/101 , F01N3/0864 , F01N3/0814 , F01N3/2803 , F01N2330/3020130101 , F01N2370/0220130101 , F01N2370/0420130101 , F01N2510/06320130101 , F01N2510/068220130101 , F01N2510/068420130101 , F01N2570/1620130101 , B01J37/038 , B01J37/0248 , B01J37/0244
摘要： Provided is an exhaust gas purification catalyst providing a catalyst performance and an OSC performance at the same time even at low temperature. The present disclosure relates to an exhaust gas purification catalyst including a substrate and a catalyst coating layer coated on the substrate. The catalyst coating layer includes a first catalyst coating layer containing Pd and/or Pt and a second catalyst coating layer containing Rh. The first catalyst coating layer is formed from an end portion in an upstream side with respect to an exhaust gas flow direction in the exhaust gas purification catalyst. The second catalyst coating layer includes an upstream coating layer formed from the end portion in the upstream side with respect to the exhaust gas flow direction in the exhaust gas purification catalyst, and a downstream coating layer formed from an end portion in a downstream side with respect to the exhaust gas flow direction in the exhaust gas purification catalyst. Rh in the upstream coating layer and the downstream coating layer are supported on specific carrier particles. Further, a particle diameter of Rh is controlled.
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公开(公告)号：EP3854478A1
公开(公告)日：2021-07-28
申请号：EP19868631.3
申请日：2019-09-09
发明人： KAWAMURA, Shogo , AIKAWA, Tomomasa , NAITO, Isao , NIHASHI, Hiroki , TAKAGI, Nobuyuki , NOBUKAWA, Takeshi
IPC分类号： B01J27/053 , B01D53/94 , B01J37/02 , B01J37/08 , F01N3/10
摘要： The present invention provides an exhaust gas purification catalyst including an alkaline-earth metal carried on a porous carrier in a highly dispersed state. The catalyst layer of the exhaust gas purification catalyst provided by the present invention has an alkaline-earth metal carrying region including a porous carrier, Pt, and a sulfuric acid salt of at least one alkaline-earth metal carried on the porous carrier, characterized in that a value of R Ae/Pt is 0.5 or more, where R Ae/Pt represents the Pearson's correlation coefficient calculated using α and β in each pixel obtained by, for a cross section of the region, performing the area analysis by FE-EPMA under the conditions of: pixel size 0.34 µm × 0.34 µm; and number of measured pixels 256 × 256; and measuring an intensity (α: cps) of a characteristic X ray of an element (Ae) of the alkaline-earth metal and an intensity (β: cps) of a characteristic X ray of Pt for each pixel.
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公开(公告)号：EP2282024B1
公开(公告)日：2015-10-21
申请号：EP09733771.1
申请日：2009-04-13
发明人： YOSHIDA, Kohei , ASANUMA, Takamitsu , OHASHI, Nobumoto , SOBUE, Yuichi , ISHIBASHI, Kazunobu , TAKAGI, Nobuyuki , WATANABE, Masao , KUWAJIMA, Masamichi , ENDO, Takayuki
CPC分类号： B01D53/9422 , B01D53/9477 , B01D53/9481 , B01D53/9495 , B01D2255/1021 , B01D2255/202 , B01D2255/204 , B01D2255/206 , B01D2255/91 , B01D2257/302 , F01N3/0807 , F01N3/0814 , F01N3/0842 , F01N3/085 , F01N13/009 , F01N13/0093 , F01N2560/06 , F01N2570/14 , F02B37/00 , F02D41/024 , F02D41/0275 , F02D2200/0806 , F02D2200/0808 , Y02A50/2344 , Y02T10/26
摘要： An internal combustion engine in an engine exhaust passage of which an NO x adsorption catalyst (12) adsorbing NO x contained in exhaust gas at the time of a low temperature and desorbing the adsorbed NO x when the temperature rises and an NO x storage catalyst (14) are arranged. When the NO x storage catalyst (14) can store NO x , the temperature of the NO x adsorption catalyst (12) is made to forcibly rise to a target temperature at which the amount of NO x which the NO x storage catalyst (14) can store is desorbed, and the NO x desorbed from the NO X adsorption catalyst (12) is stored in the NO x storage catalyst (14).
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公开(公告)号：EP4295941A1
公开(公告)日：2023-12-27
申请号：EP23179206.0
申请日：2023-06-14
发明人： NISHIO, Takahiro , SHIRAKAWA, Shogo , TOJO, Takumi , TAKAGI, Nobuyuki , TODA, Yosuke , HOSHINO, Sho , SAKAMOTO, Shun
摘要： Provided is an exhaust gas purification catalyst having a catalyst performance and an OSC performance in a compatible manner in an air-fuel ratio (A/F) rich atmosphere where HC poisoning is likely to occur. The exhaust gas purification catalyst includes a substrate and a catalyst coating layer coated on the substrate. The catalyst coating layer includes a first catalyst coating layer containing Pd and/or Pt as a catalyst metal and a second catalyst coating layer containing Rh as a catalyst metal. The first catalyst coating layer is formed from an end portion in an upstream side with respect to an exhaust gas flow direction in the exhaust gas purification catalyst. The second catalyst coating layer includes a high specific surface area OSC material having a specific surface area of more than 40 m 2 /g, a medium specific surface area OSC material having a specific surface area of 4 m 2 /g to 40 m 2 /g, and a low specific surface area OSC material having a specific surface area of less than 4 m 2 /g.
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公开(公告)号：EP3932544A1
公开(公告)日：2022-01-05
申请号：EP20762311.7
申请日：2020-02-12
发明人： NIHASHI, Hiroki , KAWAMURA, Shogo , AIKAWA, Tomomasa , NAITO, Isao , SHIRAKAWA, Shogo , MIURA, Masahide , TAKAGI, Nobuyuki , SHIMANO, Norimichi
摘要： These supported catalyst particles include oxide carrier particles and noble metal particles supported on the oxide carrier particles, wherein the mass of the noble metal particles is less than or equal to 5 mass% based on the mass of the oxide carrier particles, and the average particle size of the noble metal particles measured by transmission electron microscopy is 1.0-2.0 nm, with the standard deviation σ less than or equal to 0.8 nm.
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公开(公告)号：EP2004964A2
公开(公告)日：2008-12-24
申请号：EP07734315.0
申请日：2007-03-29
发明人： TAKAGI, Nobuyuki , MIURA, Masahide , MATSUMOTO, Shinichi , TANABE, Toshitaka , NAGAI, Yasutaka , HATANAKA, Miho , DOHMAE, Kazuhiko , YAMAMOTO, Toshio , IKEDA, Yasuo
CPC分类号： F01N3/22 , F01N3/0878 , F01N11/002 , F01N13/011 , Y02T10/20 , Y02T10/47
摘要： An exhaust gas purification system includes: at least two catalysts (1a, 1b) disposed in parallel with each other on an exhaust gas passage of an internal combustion engine (3) and having a carrier containing a basic oxide and platinum carried on the carrier; and oxygen supply means (2) for supplying oxygen to the catalysts (1a, 1b).
摘要翻译： 一种废气净化系统包括：在内燃机（3）的废气通道上彼此平行设置的至少两个催化剂（1a，1b），并且具有载体，该载体包含承载在载体上的碱性氧化物和铂; 和用于向催化剂（1a，1b）供氧的氧气供应装置（2）。
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公开(公告)号：EP2695673A1
公开(公告)日：2014-02-12
申请号：EP12767402.6
申请日：2012-04-06
发明人： TAKAGI, Nobuyuki , SOBUE, Yuichi , IKEDA, Hanae , KAMADA, Masaya , INDE, Ryoichi
CPC分类号： B01J29/74 , B01D53/945 , B01D2255/1021 , B01D2255/1023 , B01D2255/20707 , B01D2255/20715 , B01D2255/2092 , B01D2255/9022 , B01D2255/912 , B01J23/42 , B01J23/44 , B01J37/0244 , B01J2523/00 , F01N3/0814 , F01N3/0835 , F01N2510/0684 , Y02T10/22 , Y10S502/52712 , Y10S502/52713 , B01J2523/31 , B01J2523/47 , B01J2523/48
摘要： The exhaust gas purification catalyst according to the present invention has a substrate 54, a lower layer 57 disposed on this substrate 54, and an upper layer 58 disposed on this lower layer 57. The upper layer 58 is provided with a first catalyst and a second catalyst, and the lower layer 57 is provided with a first catalyst. This first catalyst has Al 2 O 3 as a carrier and Pt and Pd as noble metals supported on the Al 2 O 3 , while the second catalyst typically has an Al 2 O 3 -ZrO 2 -TiO 2 complex oxide as a carrier and has Pd as a noble metal supported on the Al 2 O 3 -ZrO 2 -TiO 2 complex oxide. Moreover, the upper layer 58 has a hydrocarbon adsorbent 68.
摘要翻译： 根据本发明的废气净化催化剂具有基板54，设置在该基板54上的下层57以及设置在该下层57上的上层58.上层58设置有第一催化剂和第二催化剂 催化剂，并且下层57设置有第一催化剂。 该第一催化剂具有作为载体的Al 2 O 3和负载在Al 2 O 3上的作为贵金属的Pt和Pd，而第二催化剂典型地具有作为载体的Al 2 O 3 -ZrO 2 -TiO复合氧化物并且具有担载在Al 2 O 3 -ZrO 2上的贵金属Pd -TiO2复合氧化物。 而且，上层58具有碳氢化合物吸附剂68。
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公开(公告)号：EP2282024A1
公开(公告)日：2011-02-09
申请号：EP09733771.1
申请日：2009-04-13
发明人： YOSHIDA, Kohei , ASANUMA, Takamitsu , OHASHI, Nobumoto , SOBUE, Yuichi , ISHIBASHI, Kazunobu , TAKAGI, Nobuyuki , WATANABE, Masao , KUWAJIMA, Masamichi , ENDO, Takayuki
CPC分类号： B01D53/9422 , B01D53/9477 , B01D53/9481 , B01D53/9495 , B01D2255/1021 , B01D2255/202 , B01D2255/204 , B01D2255/206 , B01D2255/91 , B01D2257/302 , F01N3/0807 , F01N3/0814 , F01N3/0842 , F01N3/085 , F01N13/009 , F01N13/0093 , F01N2560/06 , F01N2570/14 , F02B37/00 , F02D41/024 , F02D41/0275 , F02D2200/0806 , F02D2200/0808 , Y02A50/2344 , Y02T10/26
摘要： An internal combustion engine in an engine exhaust passage of which an NO x adsorption catalyst (12) adsorbing NO x contained in exhaust gas at the time of a low temperature and desorbing the adsorbed NO x when the temperature rises and an NO x storage catalyst (14) are arranged. When the NO x storage catalyst (14) can store NO x , the temperature of the NO x adsorption catalyst (12) is made to forcibly rise to a target temperature at which the amount of NO x which the NO x storage catalyst (14) can store is desorbed, and the NO x desorbed from the NO X adsorption catalyst (12) is stored in the NO x storage catalyst (14).
摘要翻译： 一种内燃机，其在内燃机排气通路中设置NOx吸附催化剂（12），该NOx吸附催化剂（12）吸附低温时排气中所含的NOx，并且当温度升高时解吸吸附的NOx并设置NOx储存催化剂（14） 。 在NOx吸留催化剂14能够吸藏NOx的情况下，使NOx吸附催化剂12的温度强制性上升到能够吸藏NOx吸留催化剂14能够吸留的NOx量的目标温度， 将从NOX吸附催化剂（12）脱离的NOX储存在NO X储存催化剂（14）中。
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公开(公告)号：EP2029261B1
公开(公告)日：2010-05-26
申请号：EP07767125.3
申请日：2007-06-12
发明人： TANABE, Toshitaka , NAGAI, Yasutaka , HATANAKA, Miho , DOHMAE, Kazuhiko , YAMAMOTO, Toshio , TAKAGI, Nobuyuki , IKEDA, Yasuo
CPC分类号： B01D53/945 , B01J23/002 , B01J23/10 , B01J23/58 , B01J23/63 , B01J35/0006 , B01J37/0018 , B01J37/03 , B01J37/04 , B01J2523/00 , Y02T10/22 , B01J2523/25 , B01J2523/48 , B01J2523/828 , B01J2523/3712 , B01J2523/3706
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