ABSTRACT
A large amount of research has been performed to develop an active catalyst for the facile gasification of carbonaceous materials and combustion of the carbon particulate exhausted from diesel engine. The alkali metal carbonates have been reported catalytically very active. This chapter investigates alkali metal salts supported on the particular perovskite oxide, La0.8Sr0.2Cr0.5Mn0.45Pt0.05O3 (LSCMP), as the gasification catalyst, instead of supporting directly on the carbon, to develop practical catalysts. The equipment to measure the combustion consisted of the two sections: furnace and reactor. The conversion of carbon in two separate beds, one containing the catalyst being placed upstream and another bed without catalyst downstream, was examined in order to estimate migration of active species from the upstream to the downstream bed. The catalytic activity appears influenced by the two factors in the fixed bed: the number of active species and their retention in the carbon bed; and the contact of carbon with the active species.
