Felischak, Matthias; Wolff, Tanya; Alvarado Perea, Leo; Seidel-Morgenstern, Andreas; Hamel, Christof
Resumen:
A Ni aluminized mesoporous MCM-41 catalyst was prepared and applied for the direct conversion of
ethene to propene. Suitable ethene conversion and good selectivity for the desired molecule propene
were achieved. The catalyst placed in a packed tubular reactor was stable for more than 2000 h with time
on stream. A reaction network analysis was performed evaluating the product spectrum observed covering
a large range of operating conditions. Thereby, temperature and feed concentration can be considered
as significant influence parameters on the product distribution. Based on the product spectra, a modified
reaction network including a catalytic cycle is suggested, which adds cracking of long-chain olefins to the
conventionally considered dimerization/oligomerization and isomerization steps. Following previous
publications, the catalyst presented strong deactivation behavior. It was observed that the regeneration