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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：EP2695674A1
公开(公告)日：2014-02-12
申请号：EP12767859.7
申请日：2012-04-06
发明人： TAKAGI, Nobuyuki , SOBUE, Yuichi , IKEDA, Hanae , KAMADA, Masaya , INDE, Ryoichi
CPC分类号： F01N3/2807 , B01D53/944 , B01D53/9486 , B01D2255/1021 , B01D2255/1023 , B01D2255/20707 , B01D2255/20715 , B01D2255/2092 , B01D2255/40 , B01D2255/9022 , B01J21/04 , B01J21/063 , B01J21/066 , B01J23/42 , B01J23/44 , B01J29/04 , B01J29/7007 , B01J35/0006 , B01J35/04 , B01J35/1019 , B01J37/0201 , B01J37/0244 , B01J37/031 , B01J37/036 , F01N3/10 , F01N13/0097 , F01N2510/0684 , Y02A50/2341
摘要： The oxidation catalyst for exhaust gas purification provided by the present invention includes a support supporting a noble metal that catalyzes the oxidation of carbon monoxide (CO). The support is mainly constituted by a composite metal oxide including, in terms of oxides, Al and Zr, or Al, Zr and Ti at the following mass ratios: Al 2 O 3 40 to 99% by mass, ZrO 2 1 to 45% by mass, and TiO 2 0 to 15% by mass.
摘要翻译： 本发明提供的废气净化用氧化催化剂含有负载催化氧化一氧化碳（CO）的贵金属的载体。 该载体主要由以氧化物Al和Zr或Al，Zr和Ti以以下质量比组成的复合金属氧化物构成：Al 2 O 3为40〜99质量％，ZrO 2为1〜45质量％ ，TiO 2为0〜15质量％。
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公开(公告)号：EP2692436A1
公开(公告)日：2014-02-05
申请号：EP12764386.4
申请日：2012-03-21
发明人： SHINMYO, Yusuke , TAKAGI, Nobuyuki , INDE, Ryoichi
CPC分类号： B01D53/944 , B01D2255/1021 , B01D2255/1023 , B01D2255/50 , B01D2255/9022 , B01D2255/912 , B01D2258/012 , B01J20/02 , B01J20/06 , B01J20/08 , B01J20/103 , B01J20/18 , B01J20/28045 , B01J20/3078 , B01J20/3204 , B01J20/3236 , B01J20/3238 , B01J20/3295 , B01J21/04 , B01J23/44 , B01J29/7007 , B01J35/0006 , B01J35/04 , B01J37/0244 , Y02A50/2341
摘要： Provided is an exhaust gas purification catalyst in which exhaust gas can be purified more effectively in regard to carbon monoxide, even when an engine is started up, or under other low-temperature conditions. This exhaust gas purification catalyst has a substrate (10), an oxidation catalyst layer (20) arranged on the substrate, and an adsorption layer (30) arranged on the oxidation catalyst layer. The oxidation catalyst layer has support particles and a noble metal supported by the support particles, the density of the noble metal supported in the oxidation catalyst layer being greater than the density of the noble metal supported in the adsorption layer. The adsorption layer has hydrocarbon adsorbent particles, the hydrocarbon adsorbent particle content of the adsorption layer being higher than the hydrocarbon adsorbent particle content of the oxidation catalyst layer.
摘要翻译： 本发明提供一种废气净化催化剂，即使在发动机启动时或其他低温条件下，也能够更有效地净化一氧化碳的废气。 该废气净化催化剂具有基板（10），配置在基板上的氧化催化剂层（20）和配置在该氧化催化剂层上的吸附层（30）。 氧化催化剂层具有负载粒子和由该负载粒子担载的贵金属，负载在氧化催化剂层中的贵金属的密度比负载在吸附层中的贵金属的密度大。 吸附层具有碳氢化合物吸附剂颗粒，吸附层的碳氢化合物吸附剂颗粒含量高于氧化催化剂层的碳氢化合物吸附剂颗粒含量。
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