| abstract |
A ceramic honeycomb body suitable for exhaust gas treatment, which comprises a honeycomb structure having a plurality of through channels, the plurality of through channels of the first part have a first hydraulic diameter dh1, and the plurality of through channels of the second part have a diameter smaller than the first The second hydraulic diameter dh2 of the hydraulic diameter dh1 , the first hydraulic diameter dh1 is equal to or greater than 1.1 mm, and the geometric surface area GSA of the first and second portions of the passageway together is greater than 2.9 mm −1 . Other aspects also provide diesel oxidation catalysts and soot removal methods. |