Application of silicon carbide of high specific surface to catalytic reactions at elevated temperature

摘要

Application of silicon carbide of high specific surface of at least 100 m2 per gram, according to claim 1 of the main patent application, to the use of catalytic reactions at elevated temperature, higher than 500 DEG C and capable of being between 650 and 800 DEG C, such as the supports for catalysts intended for exhaust systems of internal combustion engines, and for controlled oxidation of hydrocarbons of low molecular mass, especially methane, to hydrocarbons of higher molecular mass and longer carbon chain. Active carbon of high specific surface, reacted with silicon monoxide, is preferably doped by impregnation with a solution of a salt of a polyvalent metal such as U, Ce, Ti, Zr, Hf and lanthanides.