Steam conversion of glycerin on Ni- and Au–Ni catalysts

Abstract

During the primary screening, the catalysts were found, allowing to obtain a synthesis gas or hydrogen from glycerin with higher yields in a relatively mild conditions. A nickel and nickel-gold catalysts on different supports were studied in the reaction of steam reforming of glycerin. It was found that Ni catalysts on acidic supports (F–Al2O3 and B2O3– Al2O3) provide selectivity of H2 73 % and conversion of glycerin 48 % at 520 °C, thus they are suitable for hydrogen production from glycerin. 30 % Ni/Al2O3 catalyst, prepared by the original sol-gel method allows to obtain a commercial methanol at relatively low temperatures (520–570 °C) and almost complete conversion of glycerin. For 0,27 % Au–0,09 % Ni/Al2O3 catalyst the synergetic effect is bright. The conversion of glycerin reaches 67 % on this catalyst at 570 °C, the composition of the formed gas mixture is suitable for methanol production.