CATALISADOR DE MONOLITO REVESTIDO OTIMIZADO PARA TRATAR GASES DE ESCAPAMENTO DE AUTOMOVEL,PROCESSO PARA PREPARAR UM MONOLITO DE CERAMICA OU METAL REVESTIDO PARA TRATAR GASES DE ESCAPAMENTO DE AUTOMOVEIS E PROCESSO PARA TRATAR GASES DE ESCAPAMENTO DE AUTOMOVEIS COM UM MONOLITO DE CERAMICA OU METAL REVESTIDO

摘要

An optimum washcoated ceramic monolith for treating automotive exhaust gases is made by (a) specifying the reactants, process conditions and desired time on stream; (b) determining from the parameters in step (a) the pore size distribution and thickness of the washcoat to produce the desired auto exhaust conversion; (c) preparing a washcoat catalyst with an alumina having the desired pore size distribution; and (d) applying the prepared washcoat catalyst to a ceramic or metal monolith to produce a finished automotive exhaust gas catalyst. Following this process the optimized washcoated catalyst can then be used to treat automotive exhaust gases.