SiC foam catalyst carrier with a reinforced skin and corresponding catalytic systems.

摘要

Support for catalyst based on silicon carbide foam, in 'monolithic' form, with improved mechanical resistance is claimed. Support has external faces which are not intended to be crossed by flow resulting from action of catalyst and which have mechanically reinforced skin. The skin consists of silicon carbide and it has mechanical properties superior to those of the foam such that a gradation of the properties is obtained at the foam/skin interface. The thickness of skin is selected to allow manipulation and transformation of support for its use as part of catalytic system. Also claimed are method for making said support; and platinum or rhodium catalytic system containing it.