One-step hydrogenolysis of glycerol to biopropanols over Pt–H4SiW12O40/ZrO2 catalysts

Abstract

The one-step hydrogenolysis of biomass-derived glycerol to propanols (1-propanol + 2-propanol), which are known as biopropanols, was investigated over different supported Pt-H 4 SiW 12 O 40 (HSiW) bi-functional catalysts in aqueous media. Among the catalysts/supports tested, Pt-HSiW supported over ZrO 2 converted glycerol to biopropanols with high selectivity and high yield (94.1%), while exhibiting long-term stability (160 h). In addition, this catalyst can be resistant to the impurities present in crude glycerol. The reaction pathway to propanols from glycerol is proposed to proceed mainly through 1,2-propanediol. With the strategy toward one-step hydrogenolysis of glycerol to biopropanols sustainably, the biomass can be readily transformed to biodiesel and biopropanols via glycerol, which will bring about the benign development of the biodiesel industry. † Electronic supplementary information (ESI) available. See

Supported silicotungstic acid on zirconia catalyst for gas phase dehydration of glycerol to acrolein

“…Indeed, FESEM image reveals that the catalyst morphological characteristics remain unaffected during the reaction due to the good hydrothermal stability of zirconia (confirmed by TGA results). Similar results were also reported elsewhere [34][35][36].…”

Recent Advances in Catalytic Conversion of Glycerol

“…In addition, latest progress revealed that ethylene glycol, 1-propanol and 2-propanol can also be obtained from the catalytic hydrogenolysis of glycerol (51). For example, in the presence of Rh/SiO 2 or Pt-H 4 SiW 12 O 40 /ZrO 2 catalysts and hydrogen, a considerable amount of 1-propanol and 2-propanol was yielded in the catalytic hydrogenolysis of glycerol (126,130,131). Particularly interesting is the possibility of obtaining ethylene glycol from glycerol, considering that it is a bio-based feedstock and the resulting ethylene glycol can be used with terephthalic acid in the polyesterification to yield a thermoplastic polyester (polyethylene terephthalate), which is widely used for making synthetic fibers and soft drink bottles.…”

Deactivation study of supported Pt catalyst on glycerol hydrogenolysis

“…The main products obtained in glycerol hydrogenolysis are 1-hydroxy-propan-2-one (ACETOL) [14], 1,2-PDO [15], 1,3-PDO [16] and ethylene glycol (EG), the latter involving a C-C cleavage [17]. However, depending on the used catalyst and reaction conditions, other products such as propan-1-ol and propan-2-ol can be obtained in high yields [18]. Selectivity of products can be tuned by using different metals [14], supports [19] or additives [16].…”