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. 发明专利

JP2008272745A Catalyst for purifying exhaust gas 有权
标题翻译：用于净化排气的催化剂
公开(公告)号：JP2008272745A
公开(公告)日：2008-11-13
申请号：JP2008087646
申请日：2008-03-28
申请人： Nissan Motor Co Ltd , 日産自動車株式会社
发明人： NAITO TETSUO , SUGA KATSUO , WAKAMATSU HIRONORI , SHIRATORI KAZUYUKI , NAKAMURA MASAKI
IPC分类号： B01J23/63 , B01D53/94 , F01N3/10 , F01N3/28
摘要： PROBLEM TO BE SOLVED: To provide a catalyst for purifying exhaust gas capable of maintaining an activity improving effect of noble metal particles with the aid of co-catalyst component without increasing manufacturing cost or environmental load. SOLUTION: The catalyst 1 for purifying exhaust gas comprises: the noble metal particles 2 having a catalytic action; a first compound 3 on which the noble metal particles 2 are supported; a second compound 4 of wrapping the first compound 3 on which the noble metal particles 2 are supported; and a third compound 5 having oxygen absorbing and releasing ability. In the catalyst 1 for purifying exhaust gas, O 2 releasing amount per usage noble metal 1g in the range of 150°C to 500°C in a thermal desorption spectroscopy falls into the range of 400 to 1,200 mmol/g. COPYRIGHT: (C)2009,JPO&INPIT
摘要翻译：解决的问题：提供一种能够借助助催化剂成分维持贵金属颗粒的活性改善效果的排气净化用催化剂，而不增加制造成本或环境负荷。解决方案：用于净化废气的催化剂1包括：具有催化作用的贵金属颗粒2; 载有贵金属粒子2的第一化合物3; 包裹载有贵金属颗粒2的第一化合物3的第二化合物4; 和具有氧吸收和释放能力的第三化合物5。在用于净化废气的催化剂1中，在热解吸光谱法中，在150℃至500℃的范围内，使用贵金属1g的每次使用贵金属1g的释放量为400-2200毫摩尔 /G。版权所有（C）2009，JPO＆INPIT

2. 发明专利

JP2008264703A Exhaust gas purifying catalyst and manufacturing method thereof 有权
标题翻译：排气净化催化剂及其制造方法
公开(公告)号：JP2008264703A
公开(公告)日：2008-11-06
申请号：JP2007112145
申请日：2007-04-20
申请人： Nissan Motor Co Ltd , 日産自動車株式会社
发明人： NAITO TETSUO , WAKAMATSU HIRONORI , NAKAMURA MASAKI , SUGA KATSUO , MIYAMURA TOSHIHARU , IKEZAWA JUN
IPC分类号： B01J23/63 , B01D53/86 , B01D53/94 , B01J37/02
摘要： PROBLEM TO BE SOLVED: To provide an exhaust gas purifying catalyst capable of reducing the amount of noble metal by suppressing the aggregation of noble metal particles even at a high temperature. SOLUTION: The exhaust gas purifying catalyst 10 comprises: the noble metal particles 11 having catalytic action; a compound 12 on which the noble metal particles 11 are deposited; and an oxide 13 which encloses the compound 12 on which the noble metal particles 11 are deposited. In the exhaust gas purifying catalyst 10, initial micropore volume Va and the micropore volume Vb after calcination at 1,000°C for 3 hr satisfies the relation of inequality: Vb≥Va. COPYRIGHT: (C)2009,JPO&INPIT
摘要翻译：解决的问题：提供即使在高温也抑制贵金属粒子聚集而能够还原贵金属量的排气净化催化剂。解决方案：废气净化催化剂10包括：具有催化作用的贵金属颗粒11; 沉积有贵金属颗粒11的化合物12; 以及包围其上沉积有贵金属颗粒11的化合物12的氧化物13。在排气净化催化剂10中，初始微孔体积Va和1000℃煅烧3小时后的微孔体积Vb满足不等式Vb≥Va的关系。版权所有（C）2009，JPO＆INPIT

3. 发明专利

JP2014125976A Exhaust post-treatment device of diesel engine 有权
标题翻译：柴油发动机排气后处理装置
公开(公告)号：JP2014125976A
公开(公告)日：2014-07-07
申请号：JP2012283601
申请日：2012-12-26
申请人： Nissan Motor Co Ltd , 日産自動車株式会社
发明人： ISHIBASHI YASUTAKA , NAKANO MASAHIKO , NAITO TETSUO , NISHIZAWA TORU
IPC分类号： F01N3/24 , B01D53/94 , F01N3/08 , F01N3/20 , F02D41/04 , F02D45/00
CPC分类号： Y02T10/24
摘要： PROBLEM TO BE SOLVED: To provide a device which can make proper a supply amount of a reductant used in rich spike even after the deterioration of a catalyst.SOLUTION: The exhaust post-treatment device of a diesel engine comprises: means (21) for setting an excess air rate of exhaust in initial treatment to a rich-side first fundamental excess air rate when a regeneration time of a NOx trap catalyst (15) has come; means (21) for setting an excess air rate of exhaust in post-treatment to a second fundamental excess air rate in the vicinity of 1.0 after the excess air rate of the exhaust is set to the first fundamental excess air rate; means (21) for estimating a degree of the deterioration of the NOx trap catalyst (15); means (21) for predicting a remaining oxygen amount of the NOx trap catalyst depending on the estimated degree of the deterioration of the catalyst; and means (21) for controlling a supply amount of a reductant in the post-treatment on the basis of the remaining oxygen amount predicted by the remaining oxygen amount prediction means.
摘要翻译：要解决的问题：提供即使在催化剂劣化之后也能够使富含穗中使用的还原剂的供给量适当的装置。解决方案：柴油发动机的排气后处理装置包括：用于当NOx捕集催化剂（15）的再生时间到来时，将初始处理时的废气的过剩空气率设定为浓侧第一基本过量空气流量; 用于在排气的过剩空气速率设定为第一基本过量空气速率之后，将后处理中的排气的过量空气速率设定为1.0附近的第二基本过量空气的装置（21）用于估计NOx捕集催化剂（15）的劣化程度的装置（21）; 用于根据估计的催化剂劣化程度预测NOx捕集催化剂的剩余氧量的装置（21）; 以及用于基于由剩余氧量预测装置预测的剩余氧量来控制后处理中的还原剂的供给量的装置（21）。

4. 发明专利

JP2012125767A Exhaust gas purifying catalyst and manufacturing method thereof 有权
标题翻译：排气净化催化剂及其制造方法
公开(公告)号：JP2012125767A
公开(公告)日：2012-07-05
申请号：JP2012039810
申请日：2012-02-27
申请人： Nissan Motor Co Ltd , Renault Sas Soc Par Actions Simplifiee , ルノーエス.ア.エス.ソシエテパアクションサンプリフェ , 日産自動車株式会社
发明人： WAKAMATSU HIRONORI , SHIMADA MASANORI , NAKAMURA MASAKI , SUGA KATSUO , KIKUCHI HIROTO , NAITO TETSUO , MIYAMURA TOSHIHARU , IKEZAWA JUN
IPC分类号： B01J23/58 , B01J23/63 , F01N3/10
CPC分类号： B01D53/945 , B01D2255/1021 , B01D2255/1023 , B01D2255/1025 , B01D2255/202 , B01D2255/2022 , B01D2255/2027 , B01D2255/204 , B01D2255/2042 , B01D2255/2045 , B01D2255/206 , B01D2255/20715 , B01D2255/40 , B01D2255/908 , B01D2255/9202 , B01J23/002 , B01J23/10 , B01J23/63 , B01J35/006 , B01J35/023 , B01J37/0036 , B01J37/0207 , B01J37/0248 , B01J37/08 , B01J2523/00 , F01N2510/06 , Y02T10/22 , B01J2523/13 , B01J2523/3712 , B01J2523/36 , B01J2523/48 , B01J2523/3706 , B01J2523/3725 , B01J2523/12 , B01J2523/22 , B01J2523/23 , B01J2523/3718 , B01J2523/25 , B01J2523/31 , B01J2523/24 , B01J2523/14 , B01J2523/824
摘要： PROBLEM TO BE SOLVED: To maintain activity enhancement effect of the noble metal particles without increasing manufacturing costs or environmental impacts.SOLUTION: An exhaust gas purifying catalyst comprises: noble metal particles 1; a first compound 2 which contacts the noble metal particles 1 and suppresses movement of the noble metal particles 1; and a second compound 3 which incorporates the noble metal particles 1 and the first compound 2, suppresses the movement of the noble metal particles 1, and suppresses the coagulation of the first compound 2 following mutual contact of the first compound 2, wherein the first compound 2 supports the noble metal particles 1, and a single body or aggregate of the first compound 2 which supports the noble metal particles 1 is included in a section partitioned by the second compound 3. The first compound 2 is a composite containing a rare earth element and zirconium. The content of zirconium is larger than that of the rare earth element, in the first compound 2.
摘要翻译：要解决的问题：为了保持贵金属颗粒的活性增强效果，而不增加制造成本或环境影响。废气净化催化剂包括：贵金属颗粒1; 与贵金属粒子1接触并抑制贵金属粒子1的移动的第一化合物2; 和含有贵金属粒子1和第一化合物2的第二化合物3抑制贵金属粒子1的移动，抑制第一化合物2在第一化合物2相互接触之后的凝结，其中第一化合物 2支撑贵金属颗粒1，并且支撑贵金属颗粒1的第一化合物2的单体或聚集体包含在由第二化合物3分隔的部分中。第一化合物2是含有稀土元素和锆。在第一化合物2中，锆的含量大于稀土元素的含量。版权所有：（C）2012，JPO＆INPIT

5. 发明专利

JP2011016085A Catalyst for cleaning exhaust gas, method for manufacturing catalyst for cleaning exhaust gas, and honeycomb catalyst for cleaning exhaust gas 有权
标题翻译：用于清洁排气的催化剂，用于制造用于清洁排气的催化剂的方法和用于清洁排气的蜂窝状催化剂
公开(公告)号：JP2011016085A
公开(公告)日：2011-01-27
申请号：JP2009162927
申请日：2009-07-09
申请人： Nissan Motor Co Ltd , 日産自動車株式会社
发明人： WAKAMATSU HIRONORI , NAKAGAWA TAKEMASA , NAITO TETSUO , NAKAMURA MASAKI
IPC分类号： B01J23/58 , B01D53/94 , B01J37/02 , F01N3/10 , F01N3/28
摘要： PROBLEM TO BE SOLVED: To increase a purification performance of a reducing gas such as HC or CO when an oxidation/reduction atmosphere variation of the exhaust gas occurs.SOLUTION: A catalyst 1 for cleaning the exhaust gas has a first oxide particle 3 supporting an Rh particle 2, a second oxide particle 6 supporting a Pt particle 5 and having an oxygen sucking and releasing capacity, and a third oxide particle 8 intervening between these oxide particles. The distance between centroids L between the first oxide particle 3 and the second oxide particle 6 is 50-400 nm.
摘要翻译：要解决的问题：当排气的氧化/还原气氛变化发生时，提高诸如HC或CO的还原气体的净化性能。解决方案：用于清洁排气的催化剂1具有第一氧化物颗粒3， Rh颗粒2，支持Pt颗粒5并具有吸氧释放能力的第二氧化物颗粒6和介于这些氧化物颗粒之间的第三氧化物颗粒8。第一氧化物粒子3与第二氧化物粒子6之间的质心L之间的距离为50〜400nm。

6. 发明专利

JP2010188256A Exhaust gas cleaning catalyst and method of producing the same 有权
标题翻译：排气净化催化剂及其生产方法
公开(公告)号：JP2010188256A
公开(公告)日：2010-09-02
申请号：JP2009033908
申请日：2009-02-17
申请人： Nissan Motor Co Ltd , 日産自動車株式会社
发明人： NAITO TETSUO , NAKAMURA MASAKI , SHIRATORI KAZUYUKI , WAKAMATSU HIRONORI , SUGA KATSUO
IPC分类号： B01J23/58 , B01D53/94 , B01J23/63 , B01J35/10 , B01J37/02 , F01N3/10 , F01N3/28
摘要： PROBLEM TO BE SOLVED: To improve performance of a NOx removal catalyst in the catalyst for cleaning exhaust gas from an internal combustion engine and a method producing the same. SOLUTION: The exhaust gas cleaning catalyst 1 comprises a noble metal 2, a first compound 3 carrying the novel metal 2 and a second compound 4 including the novel metal 2 and the first compound 3 and comprising an oxide. The first compound includes at least one kind of an element 3a selected from alkali metals and alkali earth metals in the range of 0.05-0.3 [mol/L] by mol per the volume of a honeycomb carrier when the exhaust gas cleaning catalyst is formed on the honeycomb carrier. COPYRIGHT: (C)2010,JPO&INPIT
摘要翻译：要解决的问题：提高用于清洁内燃机废气的催化剂中的除氧催化剂的性能及其制造方法。解决方案：废气清洁催化剂1包含贵金属2，携带新金属2的第一化合物3和包含新金属2和第一化合物3并包含氧化物的第二化合物4。第一化合物包括当形成废气清洁催化剂时，选择碱金属和碱土金属中的至少一种元素3a，所述碱金属和碱土金属在蜂窝状载体的体积上为0.05-0.3 [mol / L] 蜂窝载体。版权所有（C）2010，JPO＆INPIT

7. 发明专利

JP2009036088A Exhaust emission control system 审中-公开
标题翻译：排气排放控制系统
公开(公告)号：JP2009036088A
公开(公告)日：2009-02-19
申请号：JP2007200960
申请日：2007-08-01
申请人： Nissan Motor Co Ltd , 日産自動車株式会社
发明人： NAKAMURA MASAKI , AOYAMA MAKOTO , NAITO TETSUO , SUGA KATSUO
IPC分类号： F01N3/20 , B01D53/94 , F01N3/24 , F01N3/36 , F01N13/08 , F02D9/04 , F02D17/00 , F02D41/04 , F02D41/06 , F02D43/00
摘要： PROBLEM TO BE SOLVED: To inhibit discharge of unburned component right after start without relaying on adsorbent by activating a catalyst even under a low exhaust temperature condition. SOLUTION: A first catalytic converter 32 which carries catalyst for converting unburned component of fuel is installed, a reducing agent is supplied to the first catalytic converter 32 when operation of an engine 1 is stopped (S205) to reduce catalyst carried by the same. After reduction of the catalyst, an exhaust passage 31 is blocked by an exhaust shutter 34 at a downstream of the first catalytic converter 32, and outer air is inhibited from flowing in the first catalytic converter 32. At start of the engine 1 after reduction, the exhaust passage 31 is opened to make exhaust gas flow in the first catalytic converter 32, and the catalyst is made react with oxygen in exhaust gas to raise temperature of the catalyst to activation temperature. COPYRIGHT: (C)2009,JPO&INPIT
摘要翻译：要解决的问题：即使在低排气温度条件下，即使在启动后也不通过活化催化剂而在吸附剂上继续排出未燃烧组分的排放。
解决方案：安装用于转换未燃燃料成分的催化剂的第一催化转化器32，当发动机1停止运转时向第一催化转化器32供应还原剂（S205）以减少由相同。在催化剂还原之后，排气通道31在第一催化转化器32的下游由排气闸板34阻挡，并且外部空气被禁止在第一催化转化器32中流动。在发动机1在还原之后，打开排气通道31，使排气在第一催化转化器32中流动，并使催化剂与废气中的氧气反应，将催化剂的温度升高至活化温度。版权所有（C）2009，JPO＆INPIT

8. 发明专利

JP2008284534A Exhaust gas purifying catalyst and its manufacturing method 有权
标题翻译：排气净化催化剂及其制造方法
公开(公告)号：JP2008284534A
公开(公告)日：2008-11-27
申请号：JP2007237100
申请日：2007-09-12
申请人： Nissan Motor Co Ltd , Renault Sas Soc Par Actions Simplifiee , ルノーエス.ア.エス.ソシエテパアクションサンプリフェ , 日産自動車株式会社
发明人： WAKAMATSU HIRONORI , SHIMADA MASANORI , NAKAMURA MASAKI , SUGA KATSUO , KIKUCHI HIROTO , NAITO TETSUO , MIYAMURA TOSHIHARU , IKEZAWA JUN
IPC分类号： B01J23/58 , B01D53/94 , B01J23/63 , B01J35/10 , B01J37/02
CPC分类号： B01D53/945 , B01D2255/1021 , B01D2255/1023 , B01D2255/1025 , B01D2255/202 , B01D2255/2022 , B01D2255/2027 , B01D2255/204 , B01D2255/2042 , B01D2255/2045 , B01D2255/206 , B01D2255/20715 , B01D2255/40 , B01D2255/908 , B01D2255/9202 , B01J23/002 , B01J23/10 , B01J23/63 , B01J35/006 , B01J35/023 , B01J37/0036 , B01J37/0207 , B01J37/0248 , B01J37/08 , B01J2523/00 , F01N2510/06 , Y02T10/22 , B01J2523/13 , B01J2523/3712 , B01J2523/36 , B01J2523/48 , B01J2523/3706 , B01J2523/3725 , B01J2523/12 , B01J2523/22 , B01J2523/23 , B01J2523/3718 , B01J2523/25 , B01J2523/31 , B01J2523/24 , B01J2523/14 , B01J2523/824
摘要： PROBLEM TO BE SOLVED: To maintain activity-maintaining effects of noble metal particles without increasing a manufacturing cost and an environment load. SOLUTION: An exhaust gas purifying catalyst comprises a noble metal particle 1, a first compound 2 supporting the noble metal particle 1 and suppressing a movement of the noble metal particle 1, and a second compound 3 which involves the noble metal particle 1 and the first compound 2, suppresses the movement of the noble metal particle 1, and at the same time, suppresses an aggregation of the first compounds 2 accompanying a mutual contact of the first compounds 2. The first compound is a composite containing rare earth elements. COPYRIGHT: (C)2009,JPO&INPIT
摘要翻译：要解决的问题：为了维持贵金属颗粒的活性维持效果，而不增加制造成本和环境负荷。解决方案：废气净化催化剂包括贵金属颗粒1，负载贵金属颗粒1的第一化合物2和抑制贵金属颗粒1的移动，以及包含贵金属颗粒1的第二化合物3 并且第一化合物2抑制贵金属粒子1的移动，同时抑制伴随第一化合物2的相互接触的第一化合物2的聚集。第一化合物是含有稀土元素的复合物。版权所有（C）2009，JPO＆INPIT

9. 发明专利

JP2007069107A Emission gas purification catalyst and its manufacturing method 审中-公开
标题翻译：排放气体净化催化剂及其制造方法
公开(公告)号：JP2007069107A
公开(公告)日：2007-03-22
申请号：JP2005257886
申请日：2005-09-06
申请人： Nissan Motor Co Ltd , 日産自動車株式会社
发明人： NAITO TETSUO , WAKAMATSU HIRONORI , HONDA HIDEYUKI
IPC分类号： B01J35/02 , B01D53/94 , B01J13/00 , B01J23/63 , B01J37/02 , B01J37/08 , B01J39/04 , F01N3/10 , F01N3/28
摘要： PROBLEM TO BE SOLVED: To provide an emission gas purification catalyst which has a high purification capability and enables a maintenance of a high catalyst activity even under air-fuel ratio fluctuation, and a manufacturing method of the emission gas purification catalyst which can manufacture easily the emission gas purification catalyst high in catalyst purification capability. SOLUTION: The catalyst contains a carrier 2 formed of an inorganic oxide, a noble metal particle 3 existing in the carrier 2, and a promoter particle 4 arranged inside the carrier 2 in a state contacting with at least a part of the noble metal particle 3, and formed of the oxide having an oxygen electrochemically doping and dedoping capacity, an average particle diameter of the noble metal particle 3 being to be ≥2 nm and ≤10 nm. COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：解决的问题：提供一种排气净化催化剂，其具有高的净化能力，并且即使在空燃比波动下也能够维持高的催化剂活性，并且可以提供能够易于制造催化剂净化能力高的排气净化催化剂。解决方案：催化剂含有由无机氧化物形成的载体2，存在于载体2中的贵金属颗粒3和以与贵金属的至少一部分接触的状态配置在载体2内的促进剂颗粒4 金属颗粒3，并且由具有氧电化学掺杂和去掺杂能力的氧化物形成，贵金属颗粒3的平均粒径为≥2nm且≤10nm。版权所有（C）2007，JPO＆INPIT

10. 发明专利

JP2012232231A LEAN NOx TRAP TYPE EXHAUST GAS PURIFICATION CATALYST AND EXHAUST GAS PURIFICATION SYSTEM 有权
标题翻译： LEAN NOx排气型排气净化催化剂和排气净化系统
公开(公告)号：JP2012232231A
公开(公告)日：2012-11-29
申请号：JP2011100747
申请日：2011-04-28
申请人： Nissan Motor Co Ltd , 日産自動車株式会社
发明人： NAITO TETSUO , HANAKI YASUNARI , NAKAMURA MASAKI , NAGATA MASAHITO
IPC分类号： B01J23/58 , B01D53/94 , B01J23/63 , F01N3/08 , F01N3/10 , F01N3/24
CPC分类号： B01D53/9413 , B01D53/9422 , B01D53/9431 , B01D53/944 , B01D53/9445 , B01D53/9477 , B01D2255/1021 , B01D2255/1023 , B01D2255/1025 , B01D2255/202 , B01D2255/2022 , B01D2255/2027 , B01D2255/2042 , B01D2255/2065 , B01D2255/20715 , B01D2255/2092 , B01D2255/91 , B01J23/58 , B01J23/63 , F01N3/0842 , F01N2370/00 , Y02T10/22
摘要： PROBLEM TO BE SOLVED: To provide a lean NOx trap type exhaust gas purification catalyst having excellent durability, and an exhaust gas purification system provided with same.SOLUTION: The lean NOx trap type exhaust gas purification catalyst contains platinum, palladium and rhodium, which are catalytic noble metals, inorganic oxides that support the catalytic noble metals, and at least one type of NOx adsorbent selected from among the group comprising magnesium, barium, sodium, potassium and cesium. Among the inorganic oxides, an inorganic oxide that supports palladium contains cerium and aluminum and/or zirconium. The inorganic oxide that supports palladium contains 1 to 20 mass%, in terms of CeO, of cerium. The exhaust gas purification system is provided with the lean NOx trap type exhaust gas purification catalyst and another catalyst which contains a catalytic noble metal and which is positioned on the upstream side of the lean NOx trap type exhaust gas purification catalyst relative to the exhaust gas flow direction.
摘要翻译：要解决的问题：提供具有优异的耐久性的贫NOx浓缩型排气净化催化剂和具有这样的废气净化系统。解决方案：稀NOx捕集型排气净化催化剂含有作为催化剂的贵金属的铂，钯和铑，支持催化贵金属的无机氧化物，以及选自以下的至少一种类型的NOx吸附剂：镁，钡，钠，钾和铯。在无机氧化物中，负载钯的无机氧化物含有铈和铝和/或锆。负载钯的无机氧化物以铈的CeO 2 计含有1〜20质量％。排气净化系统设有贫NOx捕集型废气净化催化剂和另一种含有催化贵金属的催化剂，其相对于排气流位于稀NOx捕集型排气净化催化剂的上游侧方向。版权所有（C）2013，JPO＆INPIT

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