US 12,390,793 B2
Porous composite and method of producing porous composite
Masashi Kuboyama, Yoro (JP); Kenichi Hidaka, Nagoya (JP); Takuya Nakashima, Nagoya (JP); and Yunie Izumi, Nisshin (JP)
Assigned to NGK INSULATORS, LTD., Nagoya (JP)
Filed by NGK Insulators, Ltd., Nagoya (JP)
Filed on Jun. 6, 2022, as Appl. No. 17/805,497.
Application 17/805,497 is a continuation of application No. PCT/JP2021/003240, filed on Jan. 29, 2021.
Claims priority of application No. 2020-017004 (JP), filed on Feb. 4, 2020.
Prior Publication US 2022/0297092 A1, Sep. 22, 2022
Int. Cl. B01J 23/10 (2006.01); B01D 46/24 (2006.01); B01D 53/94 (2006.01); B01J 23/34 (2006.01); B01J 35/00 (2006.01); B01J 35/50 (2024.01); B01J 35/56 (2024.01); B01J 37/00 (2006.01); B01J 37/02 (2006.01); F01N 3/02 (2006.01); F01N 3/022 (2006.01)
CPC B01J 23/34 (2013.01) [B01D 46/2418 (2013.01); B01D 53/94 (2013.01); B01J 23/10 (2013.01); B01J 35/19 (2024.01); B01J 35/50 (2024.01); B01J 35/56 (2024.01); B01J 37/0072 (2013.01); B01J 37/0217 (2013.01); F01N 3/0222 (2013.01); B01D 2255/2063 (2013.01); B01D 2255/2065 (2013.01); B01D 2255/2066 (2013.01); B01D 2255/2073 (2013.01); B01D 2255/9155 (2013.01); B01D 2255/9202 (2013.01); B01D 2279/30 (2013.01); F01N 2330/06 (2013.01)] 10 Claims
OG exemplary drawing
 
1. A porous composite comprising:
a porous base material; and
a porous collection layer provided on a collection surface of said base material,
wherein said collection layer contains catalyst particles of rare-earth oxide and/or transition metal oxide situated in pores of said collection surface of said base material, and
said collection surface has a covered region that is covered with said collection layer and whose total area is 60% or less of a total area of said collection surface.