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Title:
POROUS HONEYCOMB STRUCTURE AND EXHAUST GAS PURIFICATION APPARATUS MAKING USE OF THE SAME
Document Type and Number:
WIPO Patent Application WO/2007/039979
Kind Code:
A1
Abstract:
On catalyst support (30), not only are HC and CO contained in diesel engine (10) oxidized with an oxidation catalyst but also NOx is temporarily occluded by a NOx storage catalyst. As a porous honeycomb structure composed mainly of silicon carbide is employed as honeycomb structure (32), the regeneration efficiency of DPF (40) disposed downstream is enhanced as compared with that exhibited in the employment of honeycomb structures composed mainly of cordierite or the like.

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Inventors:
OHNO KAZUSHIGE (JP)
Application Number:
PCT/JP2006/314904
Publication Date:
April 12, 2007
Filing Date:
July 27, 2006
Export Citation:
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Assignee:
IBIDEN CO LTD (JP)
OHNO KAZUSHIGE (JP)
International Classes:
B01D39/20; B01J27/224; B01D46/00; B01D53/86; B01D53/94; B01J32/00; B01J35/04; F01N3/02; F01N3/28
Domestic Patent References:
WO2004113252A12004-12-29
WO2004069397A22004-08-19
Foreign References:
JP2006189027A2006-07-20
JP2005087805A2005-04-07
JPH0440235A1992-02-10
JPH03118811A1991-05-21
JP2001098925A2001-04-10
Other References:
See also references of EP 1847319A4
Attorney, Agent or Firm:
ITEC INTERNATIONAL PATENT FIRM (9-26 Sakae 2-chome, Naka-ku, Nagoya-sh, Aichi 08, JP)
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