Patent · US Active

Honeycomb catalytic article

US8093173B2 · kind B2 · utility

6Cited by

10References

20Claims

0Family size

Assignee

NGK INSULATORS, LTD. · JP

Inventors

Yukio Miyairi · Nagoya, JP
Takashi Mizutani · Tokoname, JP
Takuya Hiramatsu · Nagoya, JP

Key dates

Filing date	Jan 13, 2010
Grant date	Jan 10, 2012
Priority date	—
Expiry date	Mar 3, 2030

Classification

Technology area (CPC B)Performing Operations; Transporting
CPC primaryB01D46/2498
WIPO fieldChemical engineering
WIPO sectorChemistry

Abstract

There is provided a honeycomb structure where a catalyst is loaded on surfaces of inner pores of the surface layer and on a surface of the surface layer; a relation between a catalyst area proportion A of the catalyst to a gap area proportion B of a gap in a cross-section of the surface layer on the inlet side is 1%<A/B<90%; and a relation between an average catalyst area proportion, A1, from the surface to a point having a depth of one third of the thickness of the surface layer including the surface of the surface layer on the inlet side and a catalyst area proportion A2 in a central portion of the surface layer is A1/A2>1.5.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.