专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明授权

US07666375B2 Method for catalytic reduction of nitrogen oxides 有权
标题翻译：催化还原氮氧化物的方法
公开(公告)号：US07666375B2
公开(公告)日：2010-02-23
申请号：US11658729
申请日：2005-08-01
申请人： Tadao Nakatsuji , Norio Suzuki , Hiroshi Ohno , Naohiro Sato
发明人： Tadao Nakatsuji , Norio Suzuki , Hiroshi Ohno , Naohiro Sato
IPC分类号： B01D53/56 , B01D53/94
CPC分类号： B01J23/63 , B01D53/9422 , B01D53/9495 , B01D2255/1021 , B01D2255/1025 , B01D2255/206 , B01D2255/2063 , B01D2255/2065 , B01D2255/2066 , B01D2255/20715 , B01D2258/012 , B01J35/04 , B01J37/0248 , F01N3/0807 , F01N3/0814 , F01N3/0864
摘要： A method comprising subjecting fuel to combustion while the combustion atmosphere of the fuel is oscillated periodically and alternately between rich and lean conditions, leading the exhaust gas formed to a catalytic reactor, and bringing the exhaust gas into contact with a catalyst in the catalytic reactor to conduct catalytic reduction of nitrogen oxides contained in the exhaust gas, wherein the catalyst comprises as catalyst components: (A) an oxide catalyst component A comprising (a) ceria or (b) praseodymium oxide or (c) a mixture of oxides and/or a composite oxide of at least two elements selected from cerium, zirconium, praseodymium, neodymium, terbium, samarium, gadolinium and lanthanum; and (B) (d) a noble metal catalyst component B selected from platinum, rhodium, palladium and oxides thereof; under an oxygen concentration adjusted to the range of 0.1-1.0% at the exit of the catalytic reactor under the rich conditions.
摘要翻译：一种方法，其特征在于，在燃料的燃烧气氛周期性地，在富气和稀薄条件之间交替地摆动燃料进行燃烧，导致形成于催化反应器的排气，使排气与催化反应器中的催化剂接触，进行催化还原废气中所含的氮氧化物，其中催化剂包括作为催化剂组分：（A）氧化物催化剂组分A，其包含（a）二氧化铈或（b）氧化镨或（c）氧化物和/或选自铈，锆，镨，钕，铽，钐，钆和镧中的至少两种元素的复合氧化物; 和（B）（d）贵金属催化剂组分B，其选自铂，铑，钯及其氧化物; 在富氧条件下在催化反应器出口处的氧浓度调节至0.1-1.0％的范围内。

2. 发明授权

US07585477B2 Catalyst and method for catalytic reduction of nitrogen oxides 失效
标题翻译：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
申请人： Tadao Nakatsuji , Norio Suzuki , Hiroshi Ohno , Naohiro Sato , Tomoko Morita , Katsuji Wada
发明人： Tadao Nakatsuji , Norio Suzuki , Hiroshi Ohno , Naohiro Sato , Tomoko Morita , Katsuji Wada
IPC分类号： B01D53/56 , B01D53/94 , B01J23/00 , B01J23/10 , B01J23/16 , B01J23/38
CPC分类号： B01D53/9422 , B01D2255/102 , B01D2255/20 , B01D2255/206 , B01J23/652 , B01J29/7415 , B01J29/7615 , B01J29/7815 , B01J35/0006
摘要： 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.
摘要翻译：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。

3. 发明申请

US20090084090A1 Catalyst and Catalyst Structure for Reduction of Nitrogen Oxides, and Method for Catalytic Reduction of Nitrogen Oxides 审中-公开
标题翻译：用于还原氮氧化物的催化剂和催化剂结构，以及用于催化还原氮氧化物的方法
公开(公告)号：US20090084090A1
公开(公告)日：2009-04-02
申请号：US11918222
申请日：2006-04-06
申请人： Tadao Nakatsuji , Norio Suzuki , Hiroshi Ohno , Naohiro Sato
发明人： Tadao Nakatsuji , Norio Suzuki , Hiroshi Ohno , Naohiro Sato
IPC分类号： F01N3/20 , B01D53/86 , B01D53/94 , B01J23/10
CPC分类号： B01J23/63 , B01D53/9422 , B01D2255/1021 , B01D2255/1023 , B01D2255/1025 , B01D2255/2063 , B01D2255/2065 , B01D2255/2066 , B01D2255/2068 , B01D2255/20715 , B01D2255/9022 , B01D2255/908 , B01D2255/91 , B01D2258/012 , B01J23/002 , B01J23/10 , B01J23/64 , B01J23/8933 , B01J29/18 , B01J29/7007 , B01J29/76 , B01J35/1019 , B01J37/0244 , B01J37/0246 , B01J37/0248 , B01J37/033 , B01J2523/00 , B01J2523/37 , B01J2523/3712 , B01J2523/48
摘要： The invention provides a catalyst and a catalyst structure for catalytic reduction of nitrogen oxides contained in exhaust gas 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: an outer catalyst layer comprising an outer catalyst component A which comprises at least one selected from a solid acid, and a solid acid supporting oxides and/or ions of at least one element selected from vanadium, tungsten, molybdenum, copper, iron, cobalt, nickel and manganese, and an inner catalyst layer comprising an inner catalyst component which comprises at least one noble metal catalyst component B selected from platinum, rhodium, palladium and an oxide thereof and a catalyst component C comprising ceria or praseodymium oxide or a mixture of oxides and/or a composite oxide of at least two elements selected from cerium, zirconium, praseodymium, neodymium, terbium, samarium, gadolinium and lanthanum. The invention further provides a method for catalytic reduction of nitrogen oxides by contacting the nitrogen oxides with the catalyst.
摘要翻译：本发明提供催化剂和用于催化还原废气中所含的氮氧化物的催化剂结构，其中在周期性富/贫条件下供应燃料并进行燃烧，并使所得废气与其接触，该催化剂包括：外部催化剂层，其包含外部催化剂组分A，其包含选自固体酸中的至少一种和支持选自钒，钨，钼，铜，铁，钴，镍中的至少一种元素的氧化物和/或离子的固体酸，和锰和包含内催化剂组分的内催化剂层，其包含至少一种选自铂，铑，钯及其氧化物的贵金属催化剂组分B和包含二氧化铈或氧化镨的催化剂组分C或氧化物和/ 或选自铈，锆，镨，钕，铽，钐中的至少两种元素的复合氧化物，钆和镧。本发明还提供了通过使氮氧化物与催化剂接触来还原氮氧化物的方法。

4. 发明申请

US20070274889A1 Catalyst and Method for Catalytic Reduction of Nitrogen Oxides 失效
标题翻译：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
申请人： Tadao Nakatsuji , Norio Suzuki , Hiroshi Ohno , Naohiro Sato , Tomoko Morita , Katsuji Wada
发明人： Tadao Nakatsuji , Norio Suzuki , Hiroshi Ohno , Naohiro Sato , Tomoko Morita , Katsuji Wada
IPC分类号： B01D53/56 , B01J23/652 , B01J29/22 , B01J29/24 , B01J29/76
CPC分类号： B01D53/9422 , B01D2255/102 , B01D2255/20 , B01D2255/206 , B01J23/652 , B01J29/7415 , B01J29/7615 , B01J29/7815 , B01J35/0006
摘要： 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.
摘要翻译：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。

5. 发明申请

US20090000281A1 Method for Catalytic Reduction of Nitrogen Oxides 有权
标题翻译：催化还原氮氧化物的方法
公开(公告)号：US20090000281A1
公开(公告)日：2009-01-01
申请号：US11658729
申请日：2005-08-01
申请人： Tadao Nakatsuji , Norio Suzuki , Hiroshi Ohno , Naohiro Sato
发明人： Tadao Nakatsuji , Norio Suzuki , Hiroshi Ohno , Naohiro Sato
IPC分类号： F01N3/20 , B01D53/56 , B01D53/94 , B01J23/63
CPC分类号： B01J23/63 , B01D53/9422 , B01D53/9495 , B01D2255/1021 , B01D2255/1025 , B01D2255/206 , B01D2255/2063 , B01D2255/2065 , B01D2255/2066 , B01D2255/20715 , B01D2258/012 , B01J35/04 , B01J37/0248 , F01N3/0807 , F01N3/0814 , F01N3/0864
摘要： A method which comprises subjecting fuel to combustion while the combustion atmosphere of the fuel is oscillated periodically and alternately between rich and lean conditions, leading the exhaust gas formed to a catalytic reactor, and bringing the exhaust gas into contact with a catalyst in the catalytic reactor to conduct catalytic reduction of nitrogen oxides contained in the exhaust gas, wherein the catalyst comprises as catalyst components: (A) an oxide catalyst component A comprising (a) ceria or (b) praseodymium oxide or (c) a mixture of oxides 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; and (B) (d) a noble metal catalyst component B selected from the group consisting of platinum, rhodium, palladium and oxides thereof; under an oxygen concentration adjusted to be in the range of 0.1-1.0% at the exit of the catalytic reactor under the rich conditions.
摘要翻译：一种方法，其包括在燃料的燃烧气氛周期性地且在富和贫条件之间交替地振荡的同时使燃料燃烧，导致形成于催化反应器的废气，并使废气与催化反应器中的催化剂接触（A）包含（a）二氧化铈或（b）氧化镨的氧化物催化剂组分A，或（c）氧化物和/或氧化物的混合物，或选自铈，锆，镨，钕，铽，钐，钆和镧中的至少两种元素的复合氧化物; 和（B）（d）贵金属催化剂组分B，其选自铂，铑，钯及其氧化物; 在富氧条件下在催化反应器出口处的氧浓度调节至0.1-1.0％的范围内。

6. 发明申请

US20080178578A1 Emission gas purification system 审中-公开
标题翻译：排放气净化系统
公开(公告)号：US20080178578A1
公开(公告)日：2008-07-31
申请号：US11979238
申请日：2007-10-31
申请人： Katsuji Wada , Norio Suzuki , Naohiro Sato , Tomoko Morita , Hiroshi Ohno
发明人： Katsuji Wada , Norio Suzuki , Naohiro Sato , Tomoko Morita , Hiroshi Ohno
IPC分类号： F01N3/10 , F01N9/00
CPC分类号： F01N3/0871 , F01N2570/14 , Y02A50/2344 , Y02T10/20
摘要： An emission gas purification system is provided capable of making EM clearer and further improving NOx purification capacity. An emission gas purification system 1 is provided for an exhaust system of an engine 3, and includes a purification unit 16 having a catalyst for purifying NOx according to an air-fuel ratio of an emission gas, and an air-fuel ratio control unit 2 adjusting the air-fuel ratio of the emission gas supplied to the purification unit 16. The air-fuel ratio control unit 2 purifies the emission gas by setting the emission gas A/F to be near stoichiometric or rich by reducing an intake air mass in an air-fuel mixture.
摘要翻译：提供能够使EM更清洁并进一步提高NOx净化能力的排放气体净化系统。另外，在发动机3的排气系统中设置有排气净化系统1，具有根据排放气体的空燃比来净化NOx的催化剂的净化单元16和空燃比控制单元2 调整供给到净化单元16的排出气体的空燃比。空燃比控制单元2通过减少空气 - 燃料混合物中的进气体质量，将排放气体A / F设定为接近化学计量或浓度来净化排放气体。

7. 发明申请

US20080196399A1 Catalyst and method for purification of diesel engine exhaust gas 有权
标题翻译：催化剂和柴油发动机废气净化方法
公开(公告)号：US20080196399A1
公开(公告)日：2008-08-21
申请号：US12008609
申请日：2008-01-11
申请人： Tadao Nakatsuji , Naoki Oya , Naohiro Sato
发明人： Tadao Nakatsuji , Naoki Oya , Naohiro Sato
IPC分类号： F01N3/10
CPC分类号： F01N3/0807 , F01N2570/14 , Y02A50/2344 , Y02T10/20
摘要： 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.
摘要翻译：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。

8. 发明申请

US20080196396A1 Catalyst and method for purification of diesel engine exhaust gas 审中-公开
标题翻译：催化剂和柴油发动机废气净化方法
公开(公告)号：US20080196396A1
公开(公告)日：2008-08-21
申请号：US12008505
申请日：2008-01-11
申请人： Tadao Nakatsuji , Naoki Oya , Naohiro Sato
发明人： Tadao Nakatsuji , Naoki Oya , Naohiro Sato
IPC分类号： F01N3/28 , F01N3/022
CPC分类号： B01D53/9418 , B01D2255/2073 , B01D2255/20746 , B01D2255/20753 , B01D2255/20761 , B01D2255/2092 , B01D2255/915 , B01D2257/402 , B01D2258/012 , B01J21/04 , B01J23/002 , B01J23/72 , B01J23/745 , B01J23/75 , B01J23/755 , F01N3/035 , Y02C20/10 , Y02T10/24
摘要： 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) alumina, or(b) alumina supporting an ion and/or an oxide of at least one transition metal selected from the elements of Period 4 of the Periodic Table, or(c) alumina supporting an aluminate of at least one transition metal selected from the elements of Period 4 of the Periodic Table.
摘要翻译：本发明提供一种用于催化还原柴油发动机废气中的氮氧化物的催化剂，该催化剂通过使用柴油机废气中所含的未燃碳作为还原剂，所述催化剂包括：（a）氧化铝或（b）负载离子的氧化铝， /或至少一种选自元素周期表4的元素的过渡金属的氧化物，或（c）支持选自元素周期4的元素的至少一种过渡金属的铝酸盐的氧化铝。

9. 发明授权

US07794679B2 Catalyst and method for purification of diesel engine exhaust gas 有权
标题翻译：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
申请人： Tadao Nakatsuji , Naoki Oya , Naohiro Sato
发明人： Tadao Nakatsuji , Naoki Oya , Naohiro Sato
IPC分类号： B01D53/56 , B01D53/94 , B01J29/00
CPC分类号： F01N3/0807 , F01N2570/14 , Y02A50/2344 , Y02T10/20
摘要： 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.
摘要翻译：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。

10. 发明授权

US07992378B2 Exhaust gas purifying device for an internal combustion engine 失效
标题翻译：内燃机用废气净化装置
公开(公告)号：US07992378B2
公开(公告)日：2011-08-09
申请号：US11980924
申请日：2007-10-31
申请人： Tomoko Morita , Norio Suzuki , Naohiro Sato
发明人： Tomoko Morita , Norio Suzuki , Naohiro Sato
IPC分类号： F01N3/00 , F01N3/10
CPC分类号： F01N3/0814 , F01N3/0842 , F01N3/0871 , F01N11/002 , F01N2550/03 , F01N2610/03 , F02D41/0275 , F02D41/1441 , F02D2200/0806 , F02D2200/0808 , Y02T10/24 , Y02T10/47
摘要： An exhaust gas purifying device for an internal combustion engine, comprises: an exhaust purifying catalyst; a NOx purifying catalyst disposed downstream of the exhaust purifying catalyst; upstream and downstream A/F detecting sensors disposed on upstream and downstream sides of the exhaust purifying catalyst, respectively; means for supplying a reducing agent to the NOx purifying catalyst when conducting a reduction control of the NOx; means for calculating an amount of reduced NOx in the NOx purifying catalyst; means for terminating the reduction control when the amount of reduced NOx exceeds a prescribed reduction termination threshold value; means for detecting a degree of deterioration of the exhaust purifying catalyst based on an output from the upstream and downstream A/F detecting sensors; a threshold value correcting means for correcting the reduction termination threshold value according to the degree of deterioration of the exhaust purifying catalyst; and a correction prohibiting means for prohibiting the correction of the reduction termination threshold value when an amount of H2 and/or CH4 in the exhaust gas exceeds a prescribed correction prohibiting judgment value.
摘要翻译：一种用于内燃机的废气净化装置，包括：排气净化催化剂; 设置在所述排气净化催化剂的下游的NOx净化催化剂; 分别设置在排气净化催化剂的上游侧和下游侧的上下游A / F检测传感器; 用于在进行NOx的还原控制时向NOx净化催化剂供给还原剂的装置; 用于计算NOx净化催化剂中的还原NOx量的装置; 用于当减少的NOx的量超过规定的减少终止阈值时终止减少控制的装置; 用于根据来自上游和下游的A / F检测传感器的输出来检测排气净化催化剂的劣化程度的装置; 阈值校正装置，用于根据排气净化催化剂的劣化程度来校正所述还原终止阈值; 以及校正禁止装置，用于当排气中的H2和/或CH4的量超过规定的校正禁止判定值时，禁止修正减少终止阈值。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式