Patent ID: 8697222
Filing Date: 2014-04-15
Classification: B01D,B01J,C04B,F01N,Y10T

Abstract:
1. A high porosity ceramic honeycomb support, comprising: a ceramic body having an inlet end, an outlet end, a multiplicity of cells with walls defined by a thickness of greater than 2.0 mil (0.0020 inch, 0.0508 mm) and up to 7 mil (0.0070 in, 0.1778 mm), and a plurality of pores, the honeycomb comprising a total porosity in the range of 45 to 75%, a median pore size in a range of 1.8 to 3.4 micrometers, a modulus of rupture (MOR) strength of 200-400 psi, and a coefficient of thermal expansion (CTE)(25-800° C.) of less than 15×10 wherein the honeycomb support is formed from a batch of components comprising ceramic powder materials, a plasticizing binder system and a pore former, and wherein at least some of the plurality of pores are relic pores formed from the evaporation or degradation of the pore former during firing.