Title:
FINE PARTICLE FILTER, METHOD FOR REMOVING PARTICULATE MATERIAL FROM EXHAUST GAS OF INTERNAL COMBUSTION ENGINE, AND METHOD FOR PRODUCING FINE PARTICLE FILTER
Document Type and Number:
WIPO Patent Application WO/2022/130978
Kind Code:
A1
Abstract:
This fine particle filter for removing a particulate material from the exhaust gas of an internal combustion engine comprises a wall flow filter that has a porous wall, and a ceramic layer that is composed of ceramic particles which are loaded within a flow channel of the wall flow filter; and the void fraction of the ceramic layer is from 20% to 41%. The ceramic particles may be formed of one substance that is selected from the group consisting of alumina, silica, zirconia, ceria, titania and zeolite.
Inventors:
KAWASHIMA SHOTA (JP)
SANO YUKI (JP)
ENOSAKA TAKUYA (JP)
SANO YUKI (JP)
ENOSAKA TAKUYA (JP)
Application Number:
PCT/JP2021/044073
Publication Date:
June 23, 2022
Filing Date:
December 01, 2021
Export Citation:
Assignee:
UMICORE SHOKUBAI JAPAN CO LTD (JP)
International Classes:
B01D39/20; C04B38/00; C04B38/06; F01N3/022; F01N3/035
Domestic Patent References:
| WO2018180705A1 | 2018-10-04 | |||
| WO2020047506A1 | 2020-03-05 |
Foreign References:
| JP2012237282A | 2012-12-06 | |||
| JP2013141630A | 2013-07-22 | |||
| JPH10249124A | 1998-09-22 | |||
| JP2012509764A | 2012-04-26 | |||
| US20090142540A1 | 2009-06-04 |
Attorney, Agent or Firm:
MURAYAMA Yasuhiko et al. (JP)
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