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    Cerium/zirconium-base composite oxide, method for producing the same, oxygen storage/release component using said cerium-zirconium-base composite oxide, exhaust gas purification catalyst, and exhaust gas purification method using the same
    1.
    发明授权
    Cerium/zirconium-base composite oxide, method for producing the same, oxygen storage/release component using said cerium-zirconium-base composite oxide, exhaust gas purification catalyst, and exhaust gas purification method using the same 有权
    铈/锆基复合氧化物，其制造方法，使用所述铈锆复合氧化物的储氧/释放组分，废气净化催化剂和使用其的废气净化方法

    公开(公告)号：US08187995B2

    公开(公告)日：2012-05-29

    申请号：US12926786

    申请日：2010-12-09

    申请人： Takahiro Wakita ,  Akira Kohara ,  Yasuharu Kanno ,  Hiroaki Omoto

    发明人： Takahiro Wakita ,  Akira Kohara ,  Yasuharu Kanno ,  Hiroaki Omoto

    IPC分类号： B01J21/06 ,  B01J23/10 ,  C01G25/02 ,  C01B13/14 ,  C01F17/00 ,  F01N3/10

    CPC分类号： C01G25/00 ,  B01D53/945 ,  B01D2255/407 ,  B01D2255/908 ,  B01J23/10 ,  B01J23/63 ,  B01J35/002 ,  B01J35/023 ,  B01J37/0036 ,  B01J37/0081 ,  B01J37/04 ,  C01P2002/72 ,  C01P2004/61 ,  C01P2004/62 ,  Y02T10/22

    摘要： This invention relates to a cerium-zirconium-base composite oxide, which is useful, e.g., for the purification of exhaust gas discharged from combustion engines such as internal combustion engines and boilers and can release a high level of oxygen in a low temperature region, a method for producing the same, an oxygen storage/release component using the same, an exhaust gas purification catalyst, and an exhaust gas purification method. The cerium-zirconium-base composite oxide satisfies requirements (1) that the oxygen release initiation temperature is 380° C. or below, (2) that the oxygen release amount is not less than 485 μmol/g, and further (3) that the oxygen release amount at 400° C. is not less than 15 μmol/g. The cerium-zirconium-base composite oxide can be produced, for example, by mixing a starting material for cerium and a starting material for zirconium at a predetermined mixing ratio together, melting the starting material mixture at a temperature at or above the melting point, then cooling the melt to form an ingot, then optionally grinding the ingot to prepare powder, subsequently removing strain within powder crystal grains under heating, and then grinding to a further fine state.

    摘要翻译： 本发明涉及一种铈 - 锆基复合氧化物，其可用于例如从内燃机和锅炉等内燃机排放的废气的净化，并可在低温区域释放高水平的氧气， 其制造方法，使用其的氧气储存/释放组分，废气净化催化剂和废气净化方法。 铈锆系复合氧化物满足氧释放开始温度为380℃以下的要求（1），（2）氧释放量为485μmol/ g以上，进一步（3） 在400℃下的氧释放量不小于15μmol/ g。 铈 - 锆基复合氧化物可以通过例如将铈原料和锆原料以预定的混合比混合在一起，在起始原料混合物在熔点以上的温度下熔融， 然后冷却熔体以形成锭，然后任选地研磨锭以制备粉末，随后在加热下除去粉末晶粒内的应变，然后研磨至更细的状态。

    Cerium/zirconium-base composite oxide, method for producing the same, oxygen storage/release component using said cerium-zirconium-base composite oxide, exhaust gas purification catalyst, and exhaust gas purification method using the same
    2.
    发明申请
    Cerium/zirconium-base composite oxide, method for producing the same, oxygen storage/release component using said cerium-zirconium-base composite oxide, exhaust gas purification catalyst, and exhaust gas purification method using the same 有权
    铈/锆基复合氧化物，其制造方法，使用所述铈锆复合氧化物的储氧/释放组分，废气净化催化剂和使用其的废气净化方法

    公开(公告)号：US20110171092A1

    公开(公告)日：2011-07-14

    申请号：US12926786

    申请日：2010-12-09

    申请人： Takahiro Wakita ,  Akira Kohara ,  Yasuharu Kanno ,  Hiroaki Omoto

    发明人： Takahiro Wakita ,  Akira Kohara ,  Yasuharu Kanno ,  Hiroaki Omoto

    IPC分类号： B01D53/94 ,  B01J21/06 ,  B01D53/62 ,  B01D53/72 ,  B01D53/56

    CPC分类号： C01G25/00 ,  B01D53/945 ,  B01D2255/407 ,  B01D2255/908 ,  B01J23/10 ,  B01J23/63 ,  B01J35/002 ,  B01J35/023 ,  B01J37/0036 ,  B01J37/0081 ,  B01J37/04 ,  C01P2002/72 ,  C01P2004/61 ,  C01P2004/62 ,  Y02T10/22

    摘要： This invention relates to a cerium—zirconium-base composite oxide, which is useful, e.g., for the purification of exhaust gas discharged from combustion engines such as internal combustion engines and boilers and can release a high level of oxygen in a low temperature region, a method for producing the same, an oxygen storage/release component using the same, an exhaust gas purification catalyst, and an exhaust gas purification method. The cerium—zirconium-base composite oxide satisfies requirements (1) that the oxygen release initiation temperature is 380° C. or below, (2) that the oxygen release amount is not less than 485 μmol/g, and further (3) that the oxygen release amount at 400° C. is not less than 15 μmol/g. The cerium—zirconium-base composite oxide can be produced, for example, by mixing a starting material for cerium and a starting material for zirconium at a predetermined mixing ratio together, melting the starting material mixture at a temperature at or above the melting point, then cooling the melt to form an ingot, then optionally grinding the ingot to prepare powder, subsequently removing strain within powder crystal grains under heating, and then grinding to a further fine state.

    摘要翻译： 本发明涉及一种铈 - 锆基复合氧化物，其可用于例如从内燃机和锅炉等内燃机排放的废气的净化，并可在低温区域释放高水平的氧气， 其制造方法，使用其的氧气储存/释放组分，废气净化催化剂和废气净化方法。 铈锆系复合氧化物满足氧释放开始温度为380℃以下的要求（1），（2）氧释放量为485μmol/ g以上，进一步（3） 在400℃下的氧释放量不小于15μmol/ g。 铈 - 锆基复合氧化物可以通过例如将铈原料和锆原料以预定的混合比混合在一起，在起始原料混合物在熔点以上的温度下熔融， 然后冷却熔体以形成锭，然后任选地研磨锭以制备粉末，随后在加热下除去粉末晶粒内的应变，然后研磨至更细的状态。

    Exhaust gas purification method using selective reduction catalyst
    4.
    发明申请
    Exhaust gas purification method using selective reduction catalyst 审中-公开
    使用选择还原催化剂的废气净化方法

    公开(公告)号：US20090269265A1

    公开(公告)日：2009-10-29

    申请号：US12385893

    申请日：2009-04-23

    申请人： Ryuji Ando ,  Takashi Hihara ,  Yasuharu Kanno ,  Makoto Nagata

    发明人： Ryuji Ando ,  Takashi Hihara ,  Yasuharu Kanno ,  Makoto Nagata

    IPC分类号： B01D53/56

    CPC分类号： B01D53/9418 ,  B01D53/90 ,  B01D53/9422 ,  B01D53/944 ,  B01D53/9468 ,  B01D2251/2067 ,  B01D2255/1021 ,  B01D2255/1023 ,  B01D2255/2065 ,  B01D2255/20707 ,  B01D2255/20715 ,  B01D2255/20738 ,  B01D2255/20776 ,  B01D2255/40 ,  B01D2255/502 ,  B01D2255/808 ,  B01D2255/9022 ,  B01D2255/91 ,  B01D2255/9202 ,  B01D2258/012 ,  B01D2258/014 ,  F01N3/2066 ,  F01N2570/14 ,  F01N2610/02 ,  Y02A50/2344 ,  Y02C20/10 ,  Y02T10/24

    摘要： An exhaust gas purification method which is capable of purifying nitrogen oxide to be included in exhaust gas from a lean burn engine such as a boiler, a gas turbine or a lean-burn-type gasoline engine, a diesel engine, effectively, in particular, even at low temperature, with spray-supplying an aqueous solution of urea as the reducing component to the selective reduction catalyst.The exhaust gas purification method for reducing selectively NOx in exhaust gas, which is exhausted from a lean burn engine, with a selective reduction catalyst and ammonia, characterized in that an aqueous solution of urea is spray-supplied to the selective reduction catalyst, comprising at least the following zeolite (A) and the hydrolysis promotion component of urea (B), and it is contacted at 150 to 600° C., and ammonia is generated in a ratio of [NH3/NOx=0.5 to 1.5] to NOx in exhaust gas, as converted to ammonia, and a nitrogen oxide is decomposed into nitrogen and water. zeolite (A): zeolite comprising an iron element hydrolysis promotion component (B): a complex oxide comprising at least one kind selected from titania or titanium, zirconium, tungsten, silicon or alumina

    摘要翻译： 一种排气净化方法，其特征在于，能够从诸如锅炉，燃气轮机或稀燃型汽油发动机的柴油发动机，柴油发动机中净化包含在废气中的氮氧化物， 即使在低温下也可以向选择还原催化剂喷雾供应尿素水溶液作为还原组分。 一种废气净化方法，用于选择性还原催化剂和氨，从贫燃发动机排出的废气中选择性地还原NOx，其特征在于向选择性还原催化剂喷射供给尿素水溶液， 至少以下的沸石（A）和尿素（B）的水解促进成分，并且在150〜600℃下接触，以[NH 3 / NO x = 0.5〜1.5]的比例生成氨与NOx 废气转化为氨，氮氧化物分解成氮和水。 沸石（A）：包含铁元素水解促进组分的沸石（B）：包含选自二氧化钛或钛，锆，钨，硅或氧化铝中的至少一种的复合氧化物

    Exhaust gas purification catalyst for automobile, exhaust gas purification catalyst system and purifying process of exhaust gas
    5.
    发明申请
    Exhaust gas purification catalyst for automobile, exhaust gas purification catalyst system and purifying process of exhaust gas 审中-公开
    汽车尾气净化催化剂，废气净化催化剂体系及废气净化工艺

    公开(公告)号：US20080271441A1

    公开(公告)日：2008-11-06

    申请号：US12149071

    申请日：2008-04-25

    申请人： Makoto Nagata ,  Yasuharu Kanno ,  Ryuji Ando

    发明人： Makoto Nagata ,  Yasuharu Kanno ,  Ryuji Ando

    IPC分类号： F01N3/035 ,  B01J23/42 ,  B01J23/44 ,  B01J21/12 ,  B01J23/10 ,  B01D53/56

    CPC分类号： B01D53/944 ,  B01D53/9418 ,  B01D2255/1021 ,  B01D2255/1023 ,  B01D2255/9202 ,  B01D2258/012 ,  B01J23/42 ,  B01J23/44 ,  B01J23/63 ,  B01J35/0006 ,  B01J35/002 ,  B01J35/006 ,  B01J35/04 ,  B01J37/0248 ,  Y02A50/2325 ,  Y02T10/24

    摘要： The present invention provides an exhaust gas purification catalyst for automobile which is capable of raising temperature of exhaust gas exhausted from combustion engines such as diesel engine cars and converting NO in the exhaust gas to NO2, in addition, an exhaust gas purification catalyst system to purify soot, soluble organic component and NOx component exhausted from diesel engines, and a purifying process of exhaust gas.The present invention is an exhaust gas purification catalyst composition to oxidize NO in automobile exhaust gas comprising a catalyst composition in which a noble metal catalyst component (A) is supported on a heat-resistant inorganic oxide (B), and an exhaust gas purification catalyst composition etc. for automobile characterized in that the noble metal catalyst component (A) comprises platinum (Pt) existing in a state of elemental substance in the catalyst composition and platinum-palladium (Pt—Pd) existing in a state of alloy in the catalyst composition are provided.

    摘要翻译： 本发明提供一种汽车排气净化催化剂，其能够提高从诸如柴油机车辆的内燃机排出的废气的温度，并将排气中的NO转化为NO 2，另外， 用于净化从柴油发动机排出的烟灰，可溶性有机成分和NO x X成分的废气净化催化剂体系，以及废气净化处理。 本发明是将贵金属催化剂成分（A）负载在耐热性无机氧化物（B）上的催化剂组合物和排气净化催化剂（A）的废气净化催化剂组合物， 用于汽车的组合物等，其特征在于贵金属催化剂组分（A）包含以催化剂组合物中元素状态存在的铂（Pt）和在催化剂中以合金状态存在的铂 - 钯（Pt-Pd） 提供组合物。

    Cerium/zirconium-base composite oxide, method for producing the same, oxygen storage/release component using said cerium-zirconium-base composite oxide, exhaust gas purification catalyst, and exhaust gas purification method using the same
    6.
    发明授权
    Cerium/zirconium-base composite oxide, method for producing the same, oxygen storage/release component using said cerium-zirconium-base composite oxide, exhaust gas purification catalyst, and exhaust gas purification method using the same 有权
    铈/锆基复合氧化物，其制造方法，使用所述铈锆复合氧化物的储氧/释放组分，废气净化催化剂和使用其的废气净化方法

    公开(公告)号：US07871956B2

    公开(公告)日：2011-01-18

    申请号：US11717162

    申请日：2007-03-13

    申请人： Takahiro Wakita ,  Akira Kohara ,  Yasuharu Kanno ,  Hiroaki Omoto

    发明人： Takahiro Wakita ,  Akira Kohara ,  Yasuharu Kanno ,  Hiroaki Omoto

    IPC分类号： B01J21/06 ,  B01J23/10 ,  C01G25/02 ,  C01B13/14 ,  C01F17/00

    CPC分类号： C01G25/00 ,  B01D53/945 ,  B01D2255/407 ,  B01D2255/908 ,  B01J23/10 ,  B01J23/63 ,  B01J35/002 ,  B01J35/023 ,  B01J37/0036 ,  B01J37/0081 ,  B01J37/04 ,  C01P2002/72 ,  C01P2004/61 ,  C01P2004/62 ,  Y02T10/22

    摘要： This invention relates to a cerium-zirconium-base composite oxide, which is useful, e.g., for the purification of exhaust gas discharged from combustion engines such as internal combustion engines and boilers and can release a high level of oxygen in a low temperature region, a method for producing the same, an oxygen storage/release component using the same, an exhaust gas purification catalyst, and an exhaust gas purification method. The cerium-zirconium-base composite oxide satisfies requirements (1) that the oxygen release initiation temperature is 380° C. or below, (2) that the oxygen release amount is not less than 485 μmol/g, and further (3) that the oxygen release amount at 400° C. is not less than 15 μmol/g. The cerium-zirconium-base composite oxide can be produced, for example, by mixing a starting material for cerium and a starting material for zirconium at a predetermined mixing ratio together, melting the starting material mixture at a temperature at or above the melting point, then cooling the melt to form an ingot, then optionally grinding the ingot to prepare powder, subsequently removing strain within powder crystal grains under heating, and then grinding to a further fine state.

    摘要翻译： 本发明涉及一种铈 - 锆基复合氧化物，其可用于例如从内燃机和锅炉等内燃机排放的废气的净化，并可在低温区域释放高水平的氧气， 其制造方法，使用其的氧气储存/释放组分，废气净化催化剂和废气净化方法。 铈锆系复合氧化物满足氧释放开始温度为380℃以下的要求（1），（2）氧释放量为485μmol/ g以上，进一步（3） 在400℃下的氧释放量不小于15μmol/ g。 铈 - 锆基复合氧化物可以通过例如将铈原料和锆原料以预定的混合比混合在一起，在起始原料混合物在熔点以上的温度下熔融， 然后冷却熔体以形成锭，然后任选地研磨锭以制备粉末，随后在加热下除去粉末晶粒内的应变，然后研磨至更细的状态。

    Cerium/zirconium-base composite oxide, method for producing the same, oxygen storage/release component using said cerium-zirconium-base composite oxide, exhaust gas purification catalyst, and exhaust gas purification method using the same
    7.
    发明申请
    Cerium/zirconium-base composite oxide, method for producing the same, oxygen storage/release component using said cerium-zirconium-base composite oxide, exhaust gas purification catalyst, and exhaust gas purification method using the same 有权
    铈/锆基复合氧化物，其制造方法，使用所述铈锆复合氧化物的储氧/释放组分，废气净化催化剂和使用其的废气净化方法

    公开(公告)号：US20070155624A1

    公开(公告)日：2007-07-05

    申请号：US11717162

    申请日：2007-03-13

    申请人： Takahiro Wakita ,  Akira Kohara ,  Yasuharu Kanno ,  Hiroaki Omoto

    发明人： Takahiro Wakita ,  Akira Kohara ,  Yasuharu Kanno ,  Hiroaki Omoto

    IPC分类号： B01J23/10

    CPC分类号： C01G25/00 ,  B01D53/945 ,  B01D2255/407 ,  B01D2255/908 ,  B01J23/10 ,  B01J23/63 ,  B01J35/002 ,  B01J35/023 ,  B01J37/0036 ,  B01J37/0081 ,  B01J37/04 ,  C01P2002/72 ,  C01P2004/61 ,  C01P2004/62 ,  Y02T10/22

    摘要： This invention relates to a cerium-zirconium-base composite oxide, which is useful, e.g., for the purification of exhaust gas discharged from combustion engines such as internal combustion engines and boilers and can release a high level of oxygen in a low temperature region, a method for producing the same, an oxygen storage/release component using the same, an exhaust gas purification catalyst, and an exhaust gas purification method. The cerium-zirconium-base composite oxide satisfies requirements (1) that the oxygen release initiation temperature is 380° C. or below, (2) that the oxygen release amount is not less than 485 μmol/g, and further (3) that the oxygen release amount at 400° C. is not less than 15 μmol/g. The cerium-zirconium-base composite oxide can be produced, for example, by mixing a starting material for cerium and a starting material for zirconium at a predetermined mixing ratio together, melting the starting material mixture at a temperature at or above the melting point, then cooling the melt to form an ingot, then optionally grinding the ingot to prepare powder, subsequently removing strain within powder crystal grains under heating, and then grinding to a further fine state.

    摘要翻译： 本发明涉及一种铈 - 锆基复合氧化物，其可用于例如从内燃机和锅炉等内燃机排放的废气的净化，并可在低温区域释放高水平的氧气， 其制造方法，使用其的氧气储存/释放组分，废气净化催化剂和废气净化方法。 铈锆系复合氧化物满足氧释放开始温度为380℃以下的要求（1），（2）氧释放量为485mumol / g以上，进一步（3） 在400℃下的氧释放量不小于15mumol / g。 铈 - 锆基复合氧化物可以通过例如将铈原料和锆原料以预定的混合比混合在一起，在起始原料混合物在熔点以上的温度下熔融， 然后冷却熔体以形成锭，然后任选地研磨锭以制备粉末，随后在加热下除去粉末晶粒内的应变，然后研磨至更细的状态。