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Patent Searching and Data


Title:
HONEYCOMB FILTER
Document Type and Number:
Japanese Patent JP2011098338
Kind Code:
A
Abstract:

To provide a honeycomb filter having an excellent NOx removal rate.

The honeycomb filter includes a honeycomb-structured body, which is constituted so that a large number of cells are parted from one another by cell walls and arranged in parallel in the longitudinal direction of the honeycomb-structured body and each of cells is sealed at one end thereof, and zeolite deposited on the cell wall of the honeycomb-structured body. The amount of the zeolite deposited on the cell wall is 80-150 g/L. The porosity of the cell wall of the honeycomb-structured body is 55-65%. The cell density in the cross section, perpendicular to the longitudinal direction, of the honeycomb-structured body is 46.5-62.0 pieces/cm2. The thickness of the cell wall of the honeycomb-structured body is 0.2-0.3 mm. The large number of cells include large-volume cells and small-volume cells. The ratio of an area of the cross sections, perpendicular to the longitudinal direction, of the large-volume cells to that of the cross sections, perpendicular to the longitudinal direction, of the small-volume cells is 1.4-2.4.


Inventors:
OKU KAZUTAKE
OGASAWARA TOYOKI
Application Number:
JP2010112422A
Publication Date:
May 19, 2011
Filing Date:
May 14, 2010
Export Citation:
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Assignee:
IBIDEN CO LTD
International Classes:
B01J35/04; B01D39/14; B01D39/20; B01D53/86; B01D53/94; B01J29/76; C04B41/85; F01N3/02; F01N3/10; F01N3/28; B01D46/00
Attorney, Agent or Firm:
Atomi International Patent Office