Title:
触媒用途のためのテクスチャが形成された微粒子フィルター
Document Type and Number:
Japanese Patent JP2011527938
Kind Code:
A
Abstract:
The subject of the invention is a catalytic filter for the treatment of solid particles and gaseous pollutants coming from the combustion gases of an internal combustion engine, comprising a porous matrix forming an assembly of longitudinal channels separated by porous filtering walls based on or consisting of silicon carbide or aluminum titanate in the form of interconnected grains. The filter according to the invention is characterized in that: said grains and grain boundaries of said porous filtering walls are covered over at least 70% of their surface area with a texturing material, said texturing consisting of irregularities, the sizes of which are between 10 nm and 5 microns; and a catalytic coating or washcoat at least partially covers said texturing material and optionally, at least partially, the grains of said porous filtering walls.
Inventors:
May, Damien Philip
Aubert, daniel
Signor, patrice
Mustel, William Pierre Michel
Aubert, daniel
Signor, patrice
Mustel, William Pierre Michel
Application Number:
JP2011517983A
Publication Date:
November 10, 2011
Filing Date:
July 16, 2009
Export Citation:
Assignee:
Saint-Gobain Center de Chertier et de Tou du Europen
International Classes:
B01J35/04; B01D53/94; B01J23/63; B01J37/02
Attorney, Agent or Firm:
Atsushi Aoki
Takashi Ishida
Tetsuji Koga
Atsushi Ebiya
Satoshi Deno
Yasuyoshi Suzuki
Takashi Ishida
Tetsuji Koga
Atsushi Ebiya
Satoshi Deno
Yasuyoshi Suzuki