CATALYST CARRYING BASE MATERIAL AND CATALYST CONVERTER

WIPO Patent Application WO/2021/251105

A1

Provided is a catalyst carrying base material that achieves both the suppression of an increase in pressure loss and an improvement in purification performance during a cold start.　The present invention is characterized in that in a catalyst carrying base material that is obtained by at least partially joining a honeycomb body, obtained by winding or laminating a metal flat foil and a metal wave foil, and a metal outer cylinder surrounding the outer circumferential surface of the honeycomb body, a plurality of thickness direction through-holes are formed in the flat foil and the wave foil, the holes being spaced apart from each other without being continuous to each other, and the plurality of holes satisfy the following conditional expression (1).　(1): h/p > 1.0 Here, h is the disposition interval of the holes in the axial direction of the honeycomb body, p is a disposition interval of the holes in a direction perpendicular to the axial direction and along the foils.

KONYA SHOGO (JP)
MIYAMOTO KAZUKI (JP)
GOTO YASUHIDE (JP)
INAGUMA TORU (JP)
MURAMATSU KEI (JP)
OMIZU MASAFUMI (JP)
SHINODA TAKESHI (JP)
NOZAWA SOUHEI (JP)

PCT/JP2021/019391

December 16, 2021

May 21, 2021

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NIPPON STEEL CHEMICAL & MAT CO LTD (JP)

B01J35/04; B01D53/94; B01J23/63; F01N3/28

JPH0322521U	1991-03-08
JP2005296820A	2005-10-27
JP2011156505A	2011-08-18
JP5199291B2	2013-05-15
JP4975969B2	2012-07-11
JP3932798B2	2007-06-20
JP4226884B2	2009-02-18
JP5279284B2	2013-09-04
JPH025336B2	1990-02-01

MIZUNO, Katsufumi et al. (JP)

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