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公开(公告)号:US20100101220A1
公开(公告)日:2010-04-29
申请号:US12607501
申请日:2009-10-28
申请人: Kinichi IWACHIDO , Takayuki ONODERA , Masanori IDE , Hiroaki OHHARA , Mariko ONO , Akihisa OKUMURA , Masao HORI
发明人: Kinichi IWACHIDO , Takayuki ONODERA , Masanori IDE , Hiroaki OHHARA , Mariko ONO , Akihisa OKUMURA , Masao HORI
IPC分类号: F01N3/10
CPC分类号: F01N3/10 , B01D53/9422 , B01D53/9445 , B01D53/9477 , B01D2255/1021 , B01D2255/1023 , B01D2255/1026 , B01D2255/202 , B01D2255/2022 , B01D2255/204 , B01D2255/2092 , B01D2255/50 , B01D2255/91 , F01N2570/14 , Y02A50/2344 , Y02T10/22
摘要: An exhaust gas purifying catalyst which is disposed in an exhaust pipe of an internal combustion engine, includes: a substrate; and a catalyst layer, supported in the substrate and including: noble metals including platinum (Pt) and palladium (Pd); a heat-resistant inorganic oxide; and a NOx trapping material. The exhaust gas purifying catalyst adsorbs NOx in an exhaust gase when an exhaust air-fuel ratio is in a lean state and desorbs and reduces the adsorbed NOx when the exhaust air-fuel ratio is in a stoichiometric state or a rich state. (Pt/Pd) which is a ratio of amount of the platinum (Pt) to amount of the palladium (Pd) is 0.7 or more and less than 1.0.
摘要翻译: 一种设置在内燃机的排气管中的废气净化催化剂,包括:基板; 和催化剂层,其负载在所述基板中,并且包括:包括铂(Pt)和钯(Pd)的贵金属; 耐热无机氧化物; 和NOx捕集材料。 当排气空燃比处于稀薄状态时,废气净化催化剂吸附废气中的NOx,并且当排气空燃比处于化学计量状态或浓态时解吸并减少吸附的NOx。 铂(Pt)与钯(Pd)的量的比例为0.7以上且小于1.0的铂(Pt / Pd)。
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公开(公告)号:US20100158768A1
公开(公告)日:2010-06-24
申请号:US12646578
申请日:2009-12-23
申请人: Kinichi IWACHIDO , Tetsuya Watanabe
发明人: Kinichi IWACHIDO , Tetsuya Watanabe
CPC分类号: B01J37/0244 , B01D53/945 , B01D2255/1023 , B01D2255/1025 , B01D2255/2047 , B01D2255/20715 , B01D2255/9022 , B01D2255/9202 , B01D2255/9205 , B01J23/58 , B01J23/63 , B01J37/0036 , B01J37/0234 , Y02T10/22
摘要: An exhaust gas purifying catalyst includes: a substrate; and a catalyst layer supported on the substrate and including: a surface layer including: rhodium (Rh); and a first support material including zirconia (ZrO2); and an inner surface layer including: palladium (Pd); and a second support material including magnesia (MgO).
摘要翻译: 废气净化催化剂包括:基材; 以及负载在所述基板上的催化剂层,包括:表面层,其包含:铑(Rh); 和包括氧化锆(ZrO 2)的第一载体材料; 和内表面层,包括:钯(Pd); 和包括氧化镁(MgO)的第二载体材料。
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公开(公告)号:US20100058739A1
公开(公告)日:2010-03-11
申请号:US12555565
申请日:2009-09-08
申请人: Kinichi IWACHIDO
发明人: Kinichi IWACHIDO
CPC分类号: F01N3/0807 , B01D53/9422 , B01D53/945 , B01D2255/1021 , B01D2255/1023 , B01D2255/1025 , B01D2255/20738 , B01D2255/50 , B01D2255/9022 , B01D2255/91 , B01D2257/404 , B01D2258/01 , B01J23/8946 , B01J37/0244 , B01J37/0246 , F01N2570/14 , Y02A50/2344 , Y02T10/20 , Y02T10/22
摘要: An exhaust emission purification catalyst which purifies exhaust gas of an engine, includes: a carrier which is formed with a plurality of cell holes; and a plurality of catalytic layers which are carried in the plurality of cell holes. The plurality of catalytic layers includes: a first layer including an auxiliary catalyst that includes a zeolite including a transition metal that occludes NOx in the exhaust gas during a time period of low temperature; and a second layer disposed adjacent to a surface of the first layer and including a main catalyst that includes at least one of an alkali metal and an alkali earth metal and that occludes the NOx occluded in the auxiliary catalyst when temperature of the main catalyst reaches active temperature.
摘要翻译: 一种净化发动机废气的废气净化催化剂,包括:形成有多个电池孔的载体; 以及多个催化剂层,其承载在所述多个电池孔中。 多个催化层包括:第一层,包括辅助催化剂,其包括在低温时间段内包含在废气中吸留NOx的过渡金属的沸石; 以及与所述第一层的表面相邻设置的第二层,并且包括主催化剂,所述主催化剂包括碱金属和碱土金属中的至少一种,并且当所述主催化剂的温度达到活性时,所述主催化剂封闭所述辅助催化剂中所含的NOx 温度。
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