Effect of Calcination Temperature and Support Type of Pt/WOx/boehmite Catalyst on 1,3-propanediol Production from Hydrogenolysis of Glycerol

Abstract

Hydrogenolysis of glycerol to 1,3-PDO was tested over different catalysts. To enhance 1,3-PDO selectivity, our work raised the calcination temperature from 800 °C to 900 °C that promoted Bronsted acidity, glycerol conversion and 1,3-PDO selectivity under the mild reaction condition (140 °C, 0.5 MPa). Glycerol conversion gradually raised from 32.8% to 36.6% and 1,3-PdO selectivity mildly increased from 18.2% to 21.2%. The loading of SiO2 into Pt/WOx/γ-Al2O3 had extremely favourable effects on 1,3-PDO selectivity because the amount of Bronsted acid sites increased significantly as confirmed by NH3-IR.