Title:
EXHAUST GAS PURIFICATION CATALYST DEVICE
Document Type and Number:
WIPO Patent Application WO/2018/207497
Kind Code:
A1
Abstract:
An exhaust gas purification catalyst device 100 includes a honeycomb base material 10 and an inlet-side coat layer 20, wherein: the honeycomb base material 10 includes a plurality of cells 30 partitioned by porous partition walls, the plurality of cells 30 including inlet-side cells 31 and outlet-side cells 32 and being configured such that exhaust gas that has flowed into the inlet-side cells 31 passes through the partition walls and is exhausted from the outlet-side cells 32; and the inlet-side coat layer 20 is present on the surface sides of the partition walls of the inlet-side cells 31, with the proportion of 4-9 µm through-pores in the through-pore diameter distribution of the partition walls being at least 80 vol%, and the peak pore diameter measured using a mercury porosimeter being at least 3.0µm greater than the peak through-pore diameter measured using a perm porometer.
Inventors:
SUGAWARA KO (JP)
Application Number:
PCT/JP2018/013900
Publication Date:
November 15, 2018
Filing Date:
March 30, 2018
Export Citation:
Assignee:
CATALER CORP (JP)
International Classes:
B01D53/73; B01J35/04; B01D53/94; B01J23/83; B01J29/76; B01J35/10; B01J37/08; F01N3/022; F01N3/035; F01N3/28
Domestic Patent References:
WO2011125797A1 | 2011-10-13 | |||
WO2008047558A1 | 2008-04-24 |
Foreign References:
JP2012200642A | 2012-10-22 | |||
JP2012200670A | 2012-10-22 | |||
JP2006095352A | 2006-04-13 | |||
JP2014184356A | 2014-10-02 | |||
JP2006007117A | 2006-01-12 | |||
JP2010269270A | 2010-12-02 | |||
JP2014188466A | 2014-10-06 | |||
JP2009119430A | 2009-06-04 |
Other References:
See also references of EP 3623048A4
Attorney, Agent or Firm:
AOKI, Atsushi et al. (JP)
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