CPC F01N 3/0222 (2013.01) [B01D 46/2429 (2013.01); B01D 46/2474 (2013.01); B01D 46/2482 (2021.08); B01D 46/24491 (2021.08); B01D 46/24492 (2021.08); B01D 46/24494 (2021.08); C04B 38/0006 (2013.01); C04B 2111/00793 (2013.01); F01N 2330/06 (2013.01)] | 20 Claims |
1. A particulate filter comprising a honeycomb structure comprised of a matrix of walls comprised of at least one porous ceramic wall, wherein the porous ceramic wall is comprised primarily of cordierite,
wherein the porous ceramic wall comprises a microstructure comprising:
average bulk porosity >60% as measured by mercury porosimetry,
14.7 μm<d50<16.0 μm,
d10>9.0 μm,
df=(d50−d10)/d50<0.45,
d90<37 μm; and
a minimum porosity as measured by x-ray tomography at any point from a surface of the porous ceramic wall perpendicularly into the porous ceramic wall to within 15 μm of the surface of the porous ceramic wall is at least 90% of an average porosity of the middle 30% of the porous ceramic wall.
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