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公开(公告)号：US07358210B2
公开(公告)日：2008-04-15
申请号：US10103568
申请日：2002-03-22
申请人： Masakazu Tanaka , Tomomi Hase , Takashi Kondo , Tosiharu Kondo , Hiromi Sano , Jun Hasegawa , Miho Ito , Tomohiko Nakanishi , Kazuhiko Koike , Takumi Suzawa
发明人： Masakazu Tanaka , Tomomi Hase , Takashi Kondo , Tosiharu Kondo , Hiromi Sano , Jun Hasegawa , Miho Ito , Tomohiko Nakanishi , Kazuhiko Koike , Takumi Suzawa
IPC分类号： B01J21/00
CPC分类号： C04B35/195 , B01J21/14 , B01J37/00
摘要： A ceramic body that can support a required amount of catalyst component, without lowering the characteristics such as strength, manufactured without forming a coating layer and providing a high performance ceramic catalyst body that is excellent in practical utility and durability. This ceramic body is made by substituting at least one of the constituent elements of cordierite that constitutes the substrate ceramic, for example Al, with W that is the element having an empty orbit in d or f orbit, has high bonding strength and is less susceptible to deterioration since the catalyst component Pt is supported by means of chemical bonding.
摘要翻译： 可以在不形成涂层的情况下制造而不会降低强度等特性而能够支撑所需量的催化剂成分的陶瓷体，并提供实用性和耐久性优异的高性能陶瓷催化剂体。 该陶瓷体通过用构成基板陶瓷的堇青石的构成元素中的至少一种，例如Al代替，具有在d或f轨道中具有空轨道的元素的W，具有高的结合强度并且较不敏感 因为催化剂组分Pt是通过化学键合来负载的。
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公开(公告)号：US07067452B2
公开(公告)日：2006-06-27
申请号：US09960498
申请日：2001-09-24
申请人： Masakazu Tanaka , Tosiharu Kondo , Tomohiko Nakanishi , Kazuhiko Koike , Takashi Kondo , Tomomi Hase , Miho Ito
发明人： Masakazu Tanaka , Tosiharu Kondo , Tomohiko Nakanishi , Kazuhiko Koike , Takashi Kondo , Tomomi Hase , Miho Ito
CPC分类号： B01J35/04 , B01J23/40 , B01J23/56 , B01J33/00 , B01J37/0221 , B01J37/0248 , B01J38/00
摘要： (i) In a ceramic catalyst body which comprises a ceramic carrier which has a multitude of pores capable of supporting a catalyst directly on the surface of a substrate ceramic and a catalyst supported on the ceramic carrier, a layer containing an anti-evaporation metal such as Rh is formed on the outer surface of catalyst metal particles such as Pt or Rh. The layer containing the anti-evaporation metal protects the catalyst metal and prevents evaporation thereof, thereby suppressing the deterioration; and/or(ii) A ceramic catalyst body is made by having a main catalyst component and a promoter component directly on a ceramic carrier which can directly support the catalyst by substituting a part of the constituent elements of cordierite, and a trap layer is provided in the upstream thereof for trapping sulfur which is a catalyst poisoning component included in the exhaust gas. Since sulfur included in the exhaust gas can be collected by the trap layer, the catalyst poisoning component can be removed from the gas which enters the catalyst, thus preventing catalyst poisoning.
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公开(公告)号：US07084091B2
公开(公告)日：2006-08-01
申请号：US10793953
申请日：2004-03-08
摘要： This invention provides a method for producing a ceramic catalyst body that can directly support a catalyst on a ceramic support without disposing a coating layer on the ceramic support. In the invention, a catalyst solution containing a catalyst component consisting of a negative complex ion resulting from a catalyst precursor is prepared, and a pH of the catalyst solution is adjusted in such a manner as to satisfy the relation E1>E2 and E1>0 where E1 is a surface potential of a matrix phase consisting of a cordierite-W composite body relative to the pH of the catalyst solution and E2 is a surface potential of a dispersed phase consisting of compounds other than the cordierite-W composite body. After the ceramic support is brought into contact with the catalyst solution to support the catalyst component, heat-treatment is conducted to bond the matrix phase consisting of the cordierite-W composite body and the catalyst component to support the catalyst on the ceramic support.
摘要翻译： 本发明提供了一种陶瓷催化剂体的制造方法，该陶瓷催化剂体可以直接在陶瓷载体上支撑催化剂，而不在陶瓷载体上设置涂层。 在本发明中，制备含有由催化剂前体产生的负配位离子组成的催化剂成分的催化剂溶液，调节催化剂溶液的pH以满足E 1> E 2和E 1> 0其中E 1是由堇青石-W复合体组成的基质相相对于催化剂溶液的pH的表面电位，E 2是由堇青石-W以外的化合物组成的分散相的表面电位 复合体。 陶瓷载体与催化剂溶液接触以支持催化剂组分之后，进行热处理以将由堇青石-W复合体和催化剂组分组成的基体相结合以将催化剂载持在陶瓷载体上。
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公开(公告)号：US07129193B2
公开(公告)日：2006-10-31
申请号：US10364532
申请日：2003-02-12
申请人： Miho Ito , Jun Hasegawa , Tosiharu Kondo , Tomohiko Nakanishi
发明人： Miho Ito , Jun Hasegawa , Tosiharu Kondo , Tomohiko Nakanishi
CPC分类号： C04B35/46 , B01J23/58 , B01J23/652 , B01J23/6527 , B01J23/6562 , B01J35/002 , B01J37/0207 , C04B35/117 , C04B35/195 , C04B38/0067 , C04B38/0093 , C04B2111/0081 , C04B2235/3217 , C04B2235/3218 , C04B2235/3232 , C04B2235/3244 , C04B2235/3258 , C04B2235/3275 , C04B2235/3445 , C04B2235/349 , C04B38/0006 , C04B35/185 , C04B35/565 , C04B35/04
摘要： This invention aims at providing a catalyst body exhibiting a lower degradation of a catalyst due to thermal durability and capable of keeping higher catalyst performance for a long time. A catalyst component such as Pt is directly supported by Zr, W, etc, replacing elements inside a support such as Al of cordierite to provide a catalyst body without forming a coating layer. A combination of the catalyst component and the element inside the support is selected so that support strength is greater than 5 eV by simulation using a density functional method. Coarsening of catalyst particles can be suppressed and a high-performance catalyst body excellent in thermal durability can be obtained.
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公开(公告)号：US07211540B2
公开(公告)日：2007-05-01
申请号：US10876755
申请日：2004-06-28
申请人： Tomohiko Nakanishi , Kazuhiko Koike , Tomomi Hase
发明人： Tomohiko Nakanishi , Kazuhiko Koike , Tomomi Hase
CPC分类号： B01J21/14 , B01D53/94 , B01J21/063 , B01J23/56 , B01J23/6527 , B01J35/04 , C04B38/0006 , C04B2111/0081 , C04B35/195
摘要： This invention is directed to providing a high-performance ceramic support being capable of realizing early activation of a catalyst due to direct loading while maintaining the excellent properties of the substrate ceramic, and being less susceptible to heat deterioration, by specifying the kind and combination of optimal replacing elements and the replacing amount and the like. A ceramic support comprising a substrate ceramic containing Mg, Al, Si and O as constituent elements are solid-dissolved therein Ti and W as the second component. The proportion of cordierite crystal having solid-dissolved therein W and Ti is 25 mol % or more, whereby a high-performance directly supporting ceramic support is realized.
摘要翻译： 本发明旨在提供一种高性能陶瓷载体，其能够通过直接负载来实现催化剂的早期活化，同时通过确定基体陶瓷的种类和组合来保持基板陶瓷的优异性能并且不易受热劣化 最佳替代元素和替换量等。 作为第二成分，含有Mg，Al，Si，O作为构成元素的基体陶瓷的陶瓷载体固溶化为Ti和W。 其中固溶有W和Ti的堇青石晶体的比例为25摩尔％以上，从而实现了高性能的直接支撑陶瓷载体。
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公开(公告)号：US20050003958A1
公开(公告)日：2005-01-06
申请号：US10876755
申请日：2004-06-28
申请人： Tomohiko Nakanishi , Kazuhiko Koike , Tomomi Hase
发明人： Tomohiko Nakanishi , Kazuhiko Koike , Tomomi Hase
IPC分类号： B01D53/86 , B01D53/94 , B01J21/06 , B01J21/14 , B01J21/16 , B01J23/56 , B01J23/652 , B01J32/00 , B01J35/04 , C04B35/195 , C04B38/00 , B01J23/00
CPC分类号： B01J21/14 , B01D53/94 , B01J21/063 , B01J23/56 , B01J23/6527 , B01J35/04 , C04B38/0006 , C04B2111/0081 , C04B35/195
摘要： This invention is directed to providing a high-performance ceramic support being capable of realizing early activation of a catalyst due to direct loading while maintaining the excellent properties of the substrate ceramic, and being less susceptible to heat deterioration, by specifying the kind and combination of optimal replacing elements and the replacing amount and the like. A ceramic support comprising a substrate ceramic containing Mg, Al, Si and O as constituent elements are solid-dissolved therein Ti and W as the second component. The proportion of cordierite crystal having solid-dissolved therein W and Ti is 25 mol % or more, whereby a high-performance directly supporting ceramic support is realized.
摘要翻译： 本发明旨在提供一种高性能陶瓷载体，其能够通过直接负载来实现催化剂的早期活化，同时通过确定基体陶瓷的种类和组合来保持基板陶瓷的优异性能并且不易受热劣化 最佳替代元素和替换量等。 作为第二成分，含有Mg，Al，Si，O作为构成元素的基体陶瓷的陶瓷载体固溶化为Ti和W。 其中固溶有W和Ti的堇青石晶体的比例为25摩尔％以上，从而实现了高性能的直接支撑陶瓷载体。
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7.发明申请Ceramic support capable of supporting a catalyst, a catalyst-ceramic body and processes for producing same 失效能够支撑催化剂的陶瓷载体，催化剂 - 陶瓷体及其制造方法公开(公告)号：US20070173403A1
公开(公告)日：2007-07-26
申请号：US11641770
申请日：2006-12-20
IPC分类号： B01J23/00
CPC分类号： B01D63/066 , B01D53/944 , B01D67/0041 , B01D71/024 , B01D71/025 , B01D2255/1021 , B01D2255/1025 , B01D2323/225 , B01D2325/10 , B01J21/14 , B01J23/42 , B01J23/464 , B01J23/63 , B01J35/04 , B01J37/0009 , B01J37/0203 , C04B35/195 , C04B38/00 , C04B2111/0081 , C04B2201/00 , C04B35/64 , C04B38/0006 , C04B38/0054 , C04B41/00 , C04B41/0063
摘要： A ceramic support capable of supporting a catalyst comprising a ceramic body having fine pores with a diameter or width up to 1000 times the ion diameter of a catalyst component to be supported on the surface of the ceramic body, the number of the fine pores being not less than 1×1011 pores per liter, is produced by introducing oxygen vacancies or lattice defects in the cordierite crystal lattice or by applying a thermal shock to form fine cracks.
摘要翻译： 一种能够支撑催化剂的陶瓷载体，该催化剂包括具有细孔的陶瓷体，所述陶瓷体的直径或宽度高达待承载在陶瓷体表面上的催化剂组分的离子直径的1000倍，微孔的数量不是 通过在堇青石晶格中引入氧空位或晶格缺陷或通过施加热冲击以形成细裂纹来产生小于1×10 11个/升的孔。
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公开(公告)号：US07223716B1
公开(公告)日：2007-05-29
申请号：US09546227
申请日：2000-04-10
IPC分类号： B01J23/02
CPC分类号： B01D63/066 , B01D53/944 , B01D67/0041 , B01D71/024 , B01D71/025 , B01D2255/1021 , B01D2255/1025 , B01D2323/225 , B01D2325/10 , B01J21/14 , B01J23/42 , B01J23/464 , B01J23/63 , B01J35/04 , B01J37/0009 , B01J37/0203 , C04B35/195 , C04B38/00 , C04B2111/0081 , C04B2201/00 , C04B35/64 , C04B38/0006 , C04B38/0054 , C04B41/00 , C04B41/0063
摘要： A ceramic support capable of supporting a catalyst comprising a ceramic body having fine pores with a diameter or width up to 1000 times the ion diameter of a catalyst component to be supported on the surface of the ceramic body, the number of the fine pores being not less than 1×1011 pores per liter, is produced by introducing oxygen vacancies or lattice defects in the cordierite crystal lattice or by applying a thermal shock to form fine cracks.
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9.发明授权Ceramic support capable of supporting a catalyst, a catalyst-ceramic body and processes for producing same 失效能够支撑催化剂的陶瓷载体，催化剂 - 陶瓷体及其制造方法公开(公告)号：US07723263B2
公开(公告)日：2010-05-25
申请号：US11641770
申请日：2006-12-20
IPC分类号： B01J21/04
CPC分类号： B01D63/066 , B01D53/944 , B01D67/0041 , B01D71/024 , B01D71/025 , B01D2255/1021 , B01D2255/1025 , B01D2323/225 , B01D2325/10 , B01J21/14 , B01J23/42 , B01J23/464 , B01J23/63 , B01J35/04 , B01J37/0009 , B01J37/0203 , C04B35/195 , C04B38/00 , C04B2111/0081 , C04B2201/00 , C04B35/64 , C04B38/0006 , C04B38/0054 , C04B41/00 , C04B41/0063
摘要： A ceramic support capable of supporting a catalyst comprising a ceramic body having fine pores with a diameter or width up to 1000 times the ion diameter of a catalyst component to be supported on the surface of the ceramic body, the number of the fine pores being not less than 1×1011 pores per liter, is produced by introducing oxygen vacancies or lattice defects in the cordierite crystal lattice or by applying a thermal shock to form fine cracks.
摘要翻译： 一种能够支撑催化剂的陶瓷载体，该催化剂包括具有细孔的陶瓷体，所述陶瓷体的直径或宽度高达待承载在陶瓷体表面上的催化剂组分的离子直径的1000倍，微孔的数量不是 通过在堇青石晶格中引入氧空位或晶格缺陷或通过施加热冲击以形成细小裂纹而产生小于1×10 11个孔/升。
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公开(公告)号：US07183236B2
公开(公告)日：2007-02-27
申请号：US10633593
申请日：2003-08-05
CPC分类号： B01D53/945 , B01J23/63 , B01J35/04 , B01J37/0203 , B01J37/0211 , B01J37/0217 , Y02T10/22 , Y10S502/524 , Y10S502/525
摘要： An object of the present invention is to realize low pressure loss and high purification performance in a constitution in which a primary catalyst component and co-catalyst component are loaded onto a ceramic support that allows catalyst components to be loaded directly. According to the present invention, a primary catalyst component in the form of a catalyst precious metal and a co-catalyst component in the form of an oxygen occluding component are loaded on the surface of a honeycomb-shaped ceramic support, including the inner surfaces of pores. As a result of the large loaded amount of co-catalyst component entering inside the pores, the loaded amount of co-catalyst component on the cell wall surfaces is reduced, thereby making it possible to inhibit increases in pressure loss. In addition, since the primary catalyst component and co-catalyst component are in close proximity to each other, catalyst performance is improved.
摘要翻译： 本发明的目的在于，在将催化剂成分和助催化剂成分负载在能直接负载催化剂成分的陶瓷载体上的构成中，实现低压力损失和高净化性能。 根据本发明，催化剂贵金属形式的主催化剂组分和吸氧组分形式的助催化剂组分装载在蜂窝状陶瓷载体的表面上，包括内表面 毛孔 作为进入孔内的助催化剂成分的大负载量的结果，细胞壁表面上的助催化剂成分的负载量减少，从而可以抑制压力损失的增加。 此外，由于主催化剂组分和助催化剂组分彼此靠近，所以提高了催化剂性能。
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