Abstract: Catalytic filter comprising a porous matrix consisting of an inorganic material, in the form of grains that are interconnected so as to provide cavities between them, such that the open porosity is between 30 and 60% and the median pore diameter is between 5 and 40 ?m, said filter being characterized in that the grains and possibly the grain boundaries of the inorganic material are covered over at least part of their surface with a texturizing material, said texturizing consisting of irregularities having dimensions of between 10 nm and 5 microns and in that a catalytic coating at least partially coats the texturizing material and optionally, at least partially, the grains of the inorganic material.

Abstract: The invention relates to a process for obtaining a structure made from a porous ceramic material comprising at least 95% of silicon carbide SiC, said process being characterized in that said structure is obtained from a mixture of SiC grains comprising at least: a first fraction of ?-SiC grains whose median diameter is less than 5 microns; a second fraction of ?-SiC grains whose median diameter is at least two times greater than that of the first fraction of ?-SiC grains and whose median diameter is greater than or equal to 5 microns; and a fraction of ?-SiC grains or of at least a precursor of ?-SiC grains. The invention also relates to the porous structure obtained according to the process.

Abstract: The objective of the present invention is a polyvalent bifunctional catalyst and the process of its realization. A catalyst characterized by the fact that it contains, over a TiO2 support, an oxide or a mixture of metallic oxides of MC2 type obtained by reduction of the corresponding MC3 oxides, the metal(s) forming the MO2 oxides are chosen from the group formed by W and Mo.