Title:
COMPOSITE MONOLITHIC CATALYST FOR CLEANING EXHAUST GAS
Document Type and Number:
Japanese Patent JP2011092852
Kind Code:
A
Abstract:
To provide a composite monolithic catalyst for cleaning exhaust gas for efficiently removing NOx included in the lean-burn exhaust gas from a car in a wide exhaust gas temperature range of 140-400°C.
The metal oxide catalyst-supported monolithic catalyst on which Pt of low concentration is deposited is arranged on the upstream side of an exhaust gas flow path and the metal oxide catalyst-supported monolithic catalyst on which Pt of high concentration is deposited is arranged on the downstream side thereof.
Inventors:
KONISHI MITSUO
TOMOKUNI KEIZO
TOMOKUNI KEIZO
Application Number:
JP2009248640A
Publication Date:
May 12, 2011
Filing Date:
October 29, 2009
Export Citation:
Assignee:
ASAHI KASEI CORP
INST NOGUCHI
INST NOGUCHI
International Classes:
B01J35/04; B01D53/94; B01J23/42; B01J23/46; B01J29/035; B01J35/10; F01N3/08; F01N3/28
Domestic Patent References:
| JPH06165920A | 1994-06-14 | |||
| JP2001041028A | 2001-02-13 | |||
| JP2007244934A | 2007-09-27 | |||
| JP2007209866A | 2007-08-23 | |||
| JPH08206498A | 1996-08-13 |
Attorney, Agent or Firm:
Asamura patent office
Hideto Asamura
Hajime Asamura
Yukihiro Ikeda
Naganuma Akio
Kajiwara Saiko
Shinmura Morio
Kanamori Koji
Yuko Nagase
Youichi Inoue
Mari Yuge
Yoshitaka Watanabe
Hideto Asamura
Hajime Asamura
Yukihiro Ikeda
Naganuma Akio
Kajiwara Saiko
Shinmura Morio
Kanamori Koji
Yuko Nagase
Youichi Inoue
Mari Yuge
Yoshitaka Watanabe
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