sammansettningar for catalytic oxidation of gasrester, vesentligen permanent of a mixture of two catalysts

摘要

The invention relates to catalytic oxidation compounds of combustible gaseous residues. These compounds include physical mixtures of granular catalysts of which at least one is a catalyst based on metals from the platinum group on an alumina or aluminous support of large specific surface, and at least one other is a catalyst based on metal oxides on an alumina or aluminous support of a small specific surface. These compounds have the advantage of providing better oxidation yields and are particularly appropriate for the destruction of the hydrocarbons and carbon monoxide from the exhaust of internal combustion engines.