果冻传媒

This work describes the synthesis, characterization and catalytic performance of noble metal catalysts supported on zeolites or mesoporous materials for n-alkanes hydrocracking. Catalysts were obtained by depositing palladium or platinum on the supports. The samples were characterized in terms of structure, acidity and metal dispersion. Medium pore size zeolites and an extra-large pore zeolite (ZSM-5, ZSM-22, ZSM12 and EMM-23) were used to study shape selectivity effects on the reaction, observed as predominant secondary cracking of primary products.