DZWIGAJ , Stanislaw

Ethylene production by ethanol dehydration has been investigated over a set of zeolites with BEA structure in acidic form (HAlBEA). The effect on Ni addition (up to 0.03g/g (3 mass%)) is explored as a means to improve ethylene selectivity limiting the formation of heavier byproducts. The reaction temperature has been varied between 300 and...

After a preliminary thermodynamic investigation, proper operating conditions have been selected to maximise ethylene productivity by ethanol dehydration and limit side products such as coke and higher olefins or oxygenates. We focused on the possibility to operate with a diluted bioethanol solution (ca. 50 wt%), which represents a promising and...

In this work we focused on syngas production from bioethanol, achieving proper H2/CO = 2 ratio to feed the FT reaction. The catalysts were constituted by Ni supported over BEA zeolites. The Si/Al ratio was varied to assess the effect of acidity on catalyst activity, selectivity and stability. As well, the effect of Ni loading (0.6–4 wt%) was...