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    Method for preventing the wear of a monolithic catalyst by dusts
    1.
    发明授权
    Method for preventing the wear of a monolithic catalyst by dusts 失效
    防止整体式催化剂磨损的方法

    公开(公告)号：US4294806A

    公开(公告)日：1981-10-13

    申请号：US96561

    申请日：1979-11-21

    Applicant: Kazunobu Abe ,  Shoichi Tamura ,  Tadao Nakatsuji

    Inventor： Kazunobu Abe ,  Shoichi Tamura ,  Tadao Nakatsuji

    IPC: B01D53/86 ,  B01J35/04 ,  C04B38/00 ,  C04B41/50 ,  B01D53/36

    CPC classification number: C04B41/009 ,  B01D53/86 ,  B01D53/8628 ,  B01D53/8631 ,  B01J35/04 ,  C04B38/0006 ,  C04B41/5022 ,  B01J2219/32272 ,  B01J2219/32296 ,  B01J2219/32466 ,  Y10T428/24149

    Abstract: In a method for treating a gas containing dusts therein under a monolithic catalyst consisting of a ceramic support which is substantially porous throughout the structure, and has active ingredients uniformly dispersed therein and passages therethrough parallel to the flow of the gas for allowing the gas to pass therethrough, the improvement in which the catalyst has the sintered front portion or has a vitreous coating on the front portion. Alternatively, the improvement in which a metal or sintered ceramic lid having openings therethrough is fixed onto the front face of the catalyst with the passages in alignment with the openings of the lid.

    Abstract translation: 在由整体式催化剂组成的整体式催化剂处理含有灰尘的气体的方法中，所述整体催化剂由整个结构中基本上是多孔的陶瓷载体组成，并且具有均匀分散在其中的活性成分和与气体流平行的通道，以允许气体通过 其中催化剂具有烧结前部分或在前部具有玻璃质涂层的改进。 或者，其中具有开口的金属或烧结陶瓷盖的固定在催化剂的正面上，其中通道与盖的开口对准。

    Method for producing a catalytic structure for the reduction of nitrogen oxides
    2.
    发明授权
    Method for producing a catalytic structure for the reduction of nitrogen oxides 失效
    制备用于还原氮氧化物的催化结构的方法

    公开(公告)号：US4520124A

    公开(公告)日：1985-05-28

    申请号：US531468

    申请日：1983-09-12

    Applicant: Kazunobu Abe ,  Tadao Nakatsuji

    Inventor： Kazunobu Abe ,  Tadao Nakatsuji

    IPC: B01D53/94 ,  B01J21/06 ,  B01J23/22 ,  B01J23/30 ,  B01J35/06 ,  B01J37/02 ,  B01J35/04 ,  B01J21/12 ,  B01J21/14 ,  B01J31/28

    CPC classification number: B01J23/30 ,  B01D53/9418 ,  B01J35/06 ,  B01J37/024 ,  B01D2251/2062 ,  B01D2255/20707 ,  B01D2255/9202 ,  B01D2255/9207 ,  B01J21/063 ,  B01J23/22

    Abstract: A method is provided for producing a catalytic structure in the form of sheet or honeycomb for the gas phase reduction of nitrogen oxides. The method comprises: beating an inorganic fiber in water to form a slurry; forming the slurry into a sheet by paper-making means and drying the sheet; impregnating the sheet or a honeycomb structure manufactured therefrom which has a porosity of 60-85% with an impregnating slurry which contains titanium dioxide or its precursor in a concentration at least of 100 g/l and has a viscosity of 5-250 cps. at normal temperatures, drying, and when necessary calcining the structure; and then immersing the structure in a solution containing a catalytically active agent or its precursor, drying and calcining the structure, thereby to provide a porous catalytic structure having titanium dioxide and the catalytically active agent substantially uniformly dispersed and supported therein.

    Abstract translation: 提供了一种制备用于氮氧化物气相还原的片状或蜂窝形式的催化结构的方法。 该方法包括：在水中打无机纤维以形成浆料; 通过造纸装置将浆料形成片材并干燥片材; 用含有二氧化钛或其前体的含有二氧化钛或其前体的浓度至少为100g / l且具有5-250cps的粘度的孔隙率为60-85％的片材或蜂窝状结构浸渍。 在正常温度下干燥，并在必要时煅烧结构物; 然后将结构物浸渍在含有催化活性剂或其前体的溶液中，干燥并煅烧该结构，从而提供具有二氧化钛和催化活性剂的多孔催化结构，其基本均匀地分散并负载在其中。

    Method for packing catalysts
    3.
    发明授权
    Method for packing catalysts 失效
    填料催化剂的方法

    公开(公告)号：US4297248A

    公开(公告)日：1981-10-27

    申请号：US167099

    申请日：1980-07-08

    Applicant: Kazunobu Abe ,  Tadao Nakatsuji ,  Toshikatsu Umaba

    Inventor： Kazunobu Abe ,  Tadao Nakatsuji ,  Toshikatsu Umaba

    IPC: B01D53/94 ,  B01D53/86 ,  B01J19/32 ,  B01J35/04

    CPC classification number: B01J19/32 ,  B01J35/04 ,  B01J2219/32268 ,  B01J2219/32272 ,  B01J2219/32275 ,  B01J2219/32296 ,  B01J2219/32466

    Abstract: A method for packing catalysts comprising packing the catalysts having through-holes in the direction of the flow of the gas with plurality of them being arranged in the direction of the flow of the gas through the catalyst-packed layers, characterized by arranging the catalysts in such manner that the sections of the connecting parts in the direction of the flow of the gas do not lie on the same plane as at least one of the above sections of the connecting parts formed by the adjacent catalysts.

    Abstract translation: 一种用于包装催化剂的方法，包括在气体流动方向上填充具有通孔的催化剂，其中多个催化剂沿着气体流过催化剂填充层的方向排列，其特征在于将催化剂 连接部分在气体流动方向上的部分不与由相邻催化剂形成的连接部分的至少一个上述部分位于同一平面上。

    Catalyst and method for purification of diesel engine exhaust gas
    7.
    发明授权
    Catalyst and method for purification of diesel engine exhaust gas 有权
    催化剂和柴油发动机废气净化方法

    公开(公告)号：US07794679B2

    公开(公告)日：2010-09-14

    申请号：US12008609

    申请日：2008-01-11

    Applicant: Tadao Nakatsuji ,  Naoki Oya ,  Naohiro Sato

    Inventor： Tadao Nakatsuji ,  Naoki Oya ,  Naohiro Sato

    IPC: B01D53/56 ,  B01D53/94 ,  B01J29/00

    CPC classification number: F01N3/0807 ,  F01N2570/14 ,  Y02A50/2344 ,  Y02T10/20

    Abstract: The invention provides a catalyst for catalytically reducing nitrogen oxides in diesel engine exhaust gas by use of unburnt carbon contained in the diesel engine exhaust gas as a reducing agent, the catalyst comprising: (a) an acid zeolite, or (b) an alkali metal- and/or alkaline earth metal-containing zeolite, or (c) a rare earth metal-containing zeolite, or (d) a zeolite containing at least one transition metal selected from Fe, Co, Ni and Cu.

    Abstract translation: 本发明提供了一种用于通过使用柴油机废气中所含的未燃烧碳作为还原剂来催化还原柴油发动机废气中的氮氧化物的催化剂，所述催化剂包含：（a）酸性沸石，或（b）碱金属 - 和/或含碱土金属的沸石，或（c）含稀土金属的沸石，或（d）含有至少一种选自Fe，Co，Ni和Cu的过渡金属的沸石。

    Catalyst and method for catalytic reduction of nitrogen oxides
    8.
    发明授权
    Catalyst and method for catalytic reduction of nitrogen oxides 失效
    用于催化还原氮氧化物的催化剂和方法

    公开(公告)号：US07585477B2

    公开(公告)日：2009-09-08

    申请号：US10578664

    申请日：2004-11-08

    Applicant: Tadao Nakatsuji ,  Norio Suzuki ,  Hiroshi Ohno ,  Naohiro Sato ,  Tomoko Morita ,  Katsuji Wada

    Inventor： Tadao Nakatsuji ,  Norio Suzuki ,  Hiroshi Ohno ,  Naohiro Sato ,  Tomoko Morita ,  Katsuji Wada

    IPC: B01D53/56 ,  B01D53/94 ,  B01J23/00 ,  B01J23/10 ,  B01J23/16 ,  B01J23/38

    CPC classification number: B01D53/9422 ,  B01D2255/102 ,  B01D2255/20 ,  B01D2255/206 ,  B01J23/652 ,  B01J29/7415 ,  B01J29/7615 ,  B01J29/7815 ,  B01J35/0006

    Abstract: The invention provides a catalyst for catalytic reduction of nitrogen oxides contained in exhaust gases wherein fuel is supplied and subjected to combustion under periodic rich/lean conditions and the resulting exhaust gases are brought into contact therewith, which catalyst comprises: (A) a catalyst component A comprising (c) ceria or (d) praseodymium oxide or (e) an oxide and/or a composite oxide of at least two elements selected from the group consisting of cerium, zirconium, praseodymium, neodymium, terbium, samarium, gadolinium and lanthanum; (B) a catalyst component B comprising (d) a noble metal catalyst component selected from the group consisting of platinum, rhodium, palladium and oxides thereof and (e) a carrier; and (C) a catalyst component C comprising (f) a solid acid, and (g) a solid acid supporting an oxide of at least one element selected from the group consisting of vanadium, tungsten, molybdenum, copper, iron, cobalt, nickel and manganese.

    Abstract translation: 本发明提供一种用于催化还原废气中所含的氮氧化物的催化剂，其中燃料在周期性富/贫条件下被供应并经历燃烧，并使得到的废气与其接触，该催化剂包括：（A）催化剂组分 A包括（c）二氧化铈或（d）氧化镨或（e）选自铈，锆，镨，钕，铽，钐，钆和镧中的至少两种元素的氧化物和/或复合氧化物 ; （B）催化剂组分B，其包含（d）选自铂，铑，钯及其氧化物的贵金属催化剂组分和（e）载体; 和（C）包含（f）固体酸的催化剂组分C，和（g）支持选自钒，钨，钼，铜，铁，钴，镍， 和锰。

    Catalyst and Method for Catalytic Reduction of Nitrogen Oxides
    10.
    发明申请
    Catalyst and Method for Catalytic Reduction of Nitrogen Oxides 失效
    用于催化还原氮氧化物的催化剂和方法

    公开(公告)号：US20070274889A1

    公开(公告)日：2007-11-29

    申请号：US10578664

    申请日：2004-11-08

    Applicant: Tadao Nakatsuji ,  Norio Suzuki ,  Hiroshi Ohno ,  Naohiro Sato ,  Tomoko Morita ,  Katsuji Wada

    Inventor： Tadao Nakatsuji ,  Norio Suzuki ,  Hiroshi Ohno ,  Naohiro Sato ,  Tomoko Morita ,  Katsuji Wada

    IPC: B01D53/56 ,  B01J23/652 ,  B01J29/22 ,  B01J29/24 ,  B01J29/76

    CPC classification number: B01D53/9422 ,  B01D2255/102 ,  B01D2255/20 ,  B01D2255/206 ,  B01J23/652 ,  B01J29/7415 ,  B01J29/7615 ,  B01J29/7815 ,  B01J35/0006

    Abstract: The invention provides a catalyst for catalytic reduction of nitrogen oxides contained in exhaust gases wherein fuel is supplied and subjected to combustion under periodic rich/lean conditions and the resulting exhaust gases are brought into contact therewith, which catalyst comprises: (A) a catalyst component A comprising (c) ceria or (d) praseodymium oxide or (e) an oxide and/or a composite oxide of at least two elements selected from the group consisting of cerium, zirconium, praseodymium, neodymium, terbium, samarium, gadolinium and lanthanum; (B) a catalyst component B comprising (d) a noble metal catalyst component selected from the group consisting of platinum, rhodium, palladium and oxides thereof and (e) a carrier; and (C) a catalyst component C comprising (f) a solid acid, and (g) a solid acid supporting an oxide of at least one element selected from the group consisting of vanadium, tungsten, molybdenum, copper, iron, cobalt, nickel and manganese. The catalyst reduces NOx contained in exhaust gases wherein fuel is supplied and subjected to combustion with a periodic rich/lean excursions, whereby NOx is generated in the exhaust gases, with high durability in a wide temperature range even in the presence of oxygen, sulfur oxides or water.

    Abstract translation: 本发明提供一种用于催化还原废气中所含的氮氧化物的催化剂，其中燃料在周期性富/贫条件下被供应并经历燃烧，并使得到的废气与其接触，该催化剂包括：（A）催化剂组分 A包括（c）二氧化铈或（d）氧化镨或（e）选自铈，锆，镨，钕，铽，钐，钆和镧中的至少两种元素的氧化物和/或复合氧化物 ; （B）催化剂组分B，其包含（d）选自铂，铑，钯及其氧化物的贵金属催化剂组分和（e）载体; 和（C）包含（f）固体酸的催化剂组分C，和（g）支持选自钒，钨，钼，铜，铁，钴，镍， 和锰。 催化剂还原废气中所含的NOx，其中燃料被供给并经历周期性的富/贫漂移的燃烧，从而在废气中产生NOx，即使在存在氧，硫氧化物的情况下，在宽温度范围内具有高耐久性 或水。

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