公开(公告)号：US20230302406A1

公开(公告)日：2023-09-28

申请号：US18023542

申请日：2021-08-23

申请人： CATALER CORPORATION

发明人： Shunsuke OISHI ,  Naruya INADA ,  Ryoichi OGAWA

IPC分类号： B01D53/94 ,  B01J23/44 ,  B01J23/46 ,  B01J23/42 ,  B01J29/70 ,  B01J23/00 ,  B01J20/16

CPC分类号： B01D53/9454 ,  B01D53/9468 ,  B01J23/44 ,  B01J23/464 ,  B01J23/42 ,  B01J29/70 ,  B01J23/005 ,  B01D53/9486 ,  B01J20/165 ,  B01D2257/40 ,  B01D2257/702 ,  B01D2257/502 ,  B01D2258/01 ,  B01D2255/1021 ,  B01D2255/1023 ,  B01D2255/1025 ,  B01D2255/50 ,  B01D2255/908

摘要： An gas purification catalyst device having a catalyst coated layer formed on at least one base material, wherein: the catalyst coated layer includes a first catalyst coated layer on the upstream side of an exhaust gas flow, and a second catalyst coated layer on the downstream side of the exhaust gas flow; the first catalyst coated layer includes a hydrocarbon adsorbent and a catalytic precious metal; and the second catalyst coated layer includes a nitrogen oxide adsorbent and a catalytic precious metal.