Title:
EXHAUST GAS CLARIFICATION CATALYST
Document Type and Number:
WIPO Patent Application WO/2005/102518
Kind Code:
A1
Abstract:
A catalyst for clarifying an exhaust gas which comprises a zeolite and a perovskite type composite oxide containing palladium arranged at the B site thereof; and the above catalyst which further comprises a zirconia based composite oxide or a platinum group noble metal except palladium. The above catalyst for clarifying an exhaust gas is still more excellent in the performance capability for the clarification of HC in a cold exhaust gas generated at the start of an automobile engine, and is capable of maintaining high clarification activity for HC over a long period of time.
Inventors:
HORI ASUKA (JP)
NARITA KEIICHI (JP)
SATO YASUNORI (JP)
TANAKA HIROHISA (JP)
TAKAHASHI ICHIRO (JP)
KAJITA NOBUHIKO (JP)
NARITA KEIICHI (JP)
SATO YASUNORI (JP)
TANAKA HIROHISA (JP)
TAKAHASHI ICHIRO (JP)
KAJITA NOBUHIKO (JP)
Application Number:
PCT/JP2004/004509
Publication Date:
November 03, 2005
Filing Date:
March 30, 2004
Export Citation:
Assignee:
CATALER CORP (JP)
DAIHATSU MOTOR CO LTD (JP)
HORI ASUKA (JP)
NARITA KEIICHI (JP)
SATO YASUNORI (JP)
TANAKA HIROHISA (JP)
TAKAHASHI ICHIRO (JP)
KAJITA NOBUHIKO (JP)
DAIHATSU MOTOR CO LTD (JP)
HORI ASUKA (JP)
NARITA KEIICHI (JP)
SATO YASUNORI (JP)
TANAKA HIROHISA (JP)
TAKAHASHI ICHIRO (JP)
KAJITA NOBUHIKO (JP)
International Classes:
B01D53/94; B01J23/00; B01J23/63; B01J23/89; B01J29/76; B01J37/02; (IPC1-7): B01J29/76
Foreign References:
| JP2004041866A | 2004-02-12 | |||
| JP2003093887A | 2003-04-02 | |||
| JP2002045702A | 2002-02-12 | |||
| JP2002066327A | 2002-03-05 |
Other References:
See also references of EP 1743696A4
Attorney, Agent or Firm:
Suzuye, Takehiko c/o Suzuye & Suzuye 7-2 (Kasumigaseki 3-chome Chiyoda-k, Tokyo 13, JP)
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