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公开(公告)号：US08052936B2
公开(公告)日：2011-11-08
申请号：US12169753
申请日：2008-07-09
申请人： Koichiro Harada , Kenji Suzuki , Kenji Okamoto , Hiroshi Yamada , Akihide Tamani
发明人： Koichiro Harada , Kenji Suzuki , Kenji Okamoto , Hiroshi Yamada , Akihide Tamani
CPC分类号： B01J23/002 , B01D53/944 , B01D53/9477 , B01D2255/1021 , B01D2255/1023 , B01D2255/206 , B01D2255/20715 , B01D2255/2092 , B01D2258/012 , B01D2258/014 , B01J23/10 , B01J23/63 , B01J35/0006 , B01J35/04 , B01J37/0248 , B01J2523/00 , B01J2523/3712 , B01J2523/3718 , B01J2523/3725 , B01J2523/48 , B01J2523/36 , B01J2523/3706
摘要： In a particulate filter, a catalyst layer containing Pt-carried activated alumina particles, CeZr-based mixed oxide particles and ZrNd-based mixed oxide particles is formed, the proportion of the total amount of the CeZr-based mixed oxide particles and the ZrNd-based mixed oxide particles in the total amount of the Pt-carried activated alumina particles, the CeZr-based mixed oxide particles and the ZrNd-based mixed oxide particles is 10% to 60% by mass, both inclusive, and the mass ratio of the CeZr-based mixed oxide particles to the ZrNd-based mixed oxide particles is 20/80 to 80/20, both inclusive. This configuration enhances the particulate burning property and the low-temperature exhaust gas conversion efficiency.
摘要翻译： 在微粒过滤器中，形成含有Pt载体的活性氧化铝粒子，CeZr系混合氧化物粒子，ZrNd系混合氧化物粒子的催化剂层，CeZr系混合氧化物粒子和ZrNd- Pt负载活性氧化铝颗粒的总量，CeZr系混合氧化物粒子和ZrNd系混合氧化物粒子的比例为10质量％〜60质量％，其中， CeZr系混合氧化物粒子与ZrNd系混合氧化物粒子的比例为20/80〜80/20。 这种结构提高了颗粒燃烧性能和低温排气转换效率。
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公开(公告)号：US08202483B2
公开(公告)日：2012-06-19
申请号：US12169725
申请日：2008-07-09
申请人： Koichiro Harada , Kenji Suzuki , Kenji Okamoto , Hiroshi Yamada , Akihide Tamani
发明人： Koichiro Harada , Kenji Suzuki , Kenji Okamoto , Hiroshi Yamada , Akihide Tamani
CPC分类号： F01N3/0231 , B01D53/944 , B01D53/945 , B01D2255/1021 , B01D2255/206 , B01D2255/20715 , B01D2255/407 , B01D2255/9022 , B01J23/002 , B01J23/63 , B01J35/04 , B01J37/0244 , B01J37/0248 , B01J2523/36 , B01J2523/3706 , B01J2523/3712 , B01J2523/3718 , B01J2523/3725 , B01J2523/48 , F01N3/035 , F01N2510/065 , F01N2510/0682 , F01N2570/16 , Y02T10/22
摘要： In at least part of a catalyst layer of a particulate filter, a second catalyst part is exposed on the surface of the catalyst layer to overlie a first catalyst part, the first catalyst part contains Pt-carried activated alumina particles, the second catalyst part contains ZrNd-based mixed oxide particles containing a rare earth metal M and at least one of the first catalyst part and the second catalyst part further contains CeZr-based mixed oxide particles containing a rare earth metal R.
摘要翻译： 在颗粒过滤器的催化剂层的至少一部分中，第二催化剂部分暴露在催化剂层的表面上以覆盖第一催化剂部分，第一催化剂部分含有载Pt的活性氧化铝颗粒，第二催化剂部分含有 含有稀土金属M和第一催化剂部分和第二催化剂部分中的至少一种的ZrNd系混合氧化物粒子还含有含有稀土金属R的CeZr系混合氧化物粒子。
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公开(公告)号：US20090041636A1
公开(公告)日：2009-02-12
申请号：US12169725
申请日：2008-07-09
申请人： Koichiro HARADA , Kenji SUZUKI , Kenji OKAMOTO , Hiroshi YAMADA , Akihide TAMANI
发明人： Koichiro HARADA , Kenji SUZUKI , Kenji OKAMOTO , Hiroshi YAMADA , Akihide TAMANI
IPC分类号： B01D53/94
CPC分类号： F01N3/0231 , B01D53/944 , B01D53/945 , B01D2255/1021 , B01D2255/206 , B01D2255/20715 , B01D2255/407 , B01D2255/9022 , B01J23/002 , B01J23/63 , B01J35/04 , B01J37/0244 , B01J37/0248 , B01J2523/36 , B01J2523/3706 , B01J2523/3712 , B01J2523/3718 , B01J2523/3725 , B01J2523/48 , F01N3/035 , F01N2510/065 , F01N2510/0682 , F01N2570/16 , Y02T10/22
摘要： In at least part of a catalyst layer of a particulate filter, a second catalyst part is exposed on the surface of the catalyst layer to overlie a first catalyst part, the first catalyst part contains Pt-carried activated alumina particles, the second catalyst part contains ZrNd-based mixed oxide particles containing a rare earth metal M and at least one of the first catalyst part and the second catalyst part further contains CeZr-based mixed oxide particles containing a rare earth metal R.
摘要翻译： 在颗粒过滤器的催化剂层的至少一部分中，第二催化剂部分暴露在催化剂层的表面上以覆盖第一催化剂部分，第一催化剂部分含有载Pt的活性氧化铝颗粒，第二催化剂部分含有 含有稀土金属M和第一催化剂部分和第二催化剂部分中的至少一种的ZrNd系混合氧化物粒子还含有含有稀土金属R的CeZr系混合氧化物粒子。
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