Studies of the alkylation of benzene with propene confirmed that cumene was the primary reaction product. It explains why large pore zeolites, e.g., zeolite Beta, are used commercially today for this process. Br nsted sites and a dehydrogenation function provided by Ga or Zn species. These species can react with olefins, alkanes, or other electron-rich molecules such as benzene. Their subsequent reactions lead eventually to toluene and xylenes as the final products.
All species disappear completely after evacuation.
Rh loadings by means of Fourier transform infrared spectroscopy. The catalysts exhibited high catalytic activity at room temperature. The effects of preparation methods of the support, the mole ratio of ceria and titania in mixed supports as well as Pd loading upon the catalytic activity of CO oxidation were investigated. The combustion activity over Pd loaded on strong acidic or basic support was lower than over Pd on weak acidic or basic metal oxides. 2 O 3 catalyst.