Abstract
Ni-containing dealuminated Y zeolites with different Si/Al ratios were prepared, characterized and tested in the ethylene oligomerization reaction, performed in slurry semi-batch mode, under very mild conditions. A favourable influence of both pore accessibility and mild acidity of NiY materials on their catalytic properties was observed. With these catalysts, high activities (16–30 g of oligomers/g cat h) were obtained in the temperature range of 30–70 °C. The reaction was also highly selective, resulting almost exclusively in olefins with an even number of C 4–C 12 carbon atoms.
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