Synthesis of fatty alcohols by hydrogenation of palm esters using rhenium-based catalysts supported on Niobia, Alumina and Titania
International Journal of Development Research
Synthesis of fatty alcohols by hydrogenation of palm esters using rhenium-based catalysts supported on Niobia, Alumina and Titania
Received 28th August, 2020; Received in revised form 04th September, 2020; Accepted 06th October, 2020; Published online 30th November, 2020
Copyright © 2020, Viviane Tobias Albuquerque et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
Hydrogenolysis of esters to fatty alcohols (FA) investigated using Re catalysts with different supports. First, the catalysts were prepared through incipient wetness impregnation and characterized. The catalysts were tested at different temperatures and pressure. The catalysts supported on Al2O3, Nb2O5 showed faster conversion rates. However, the selectivity to FA decreases during the reaction favoring hydrocarbons (HC) production, especially at higher temperatures. The Re/TiO2 catalyst obtained a higher selectivity of 93.8% in FA and a conversion of 92% at 280 ºC. The Re/Nb2O5 catalyst obtained excellent yield with 99.7% conversion and 86.7% selectivity in AF at a temperature of 250 ºC and 70 bar.
