Efficient and selective conversion of glycidol to 1,2-propanediol over Pd/C catalyst

作者：Cucciniello Raffaele; Pironti Concetta; Capacchione Carmine; Proto Antonio; Di Serio Martino

来源：Catalysis Communications, 2016, 77: 98-102.

DOI：10.1016/j.catcom.2016.01.026

• Glycidol
• Diols
• Heterogeneous catalysis
• Hydrogenolysis

The present work deals with the catalytic hydrogenolysis of glycidol to 1,2-propanediol. Reactions were carried out in a closed steel reactor using noble metal based heterogeneous catalysts (Pd, Rh, Pt) under hydrogen pressure (1-8 bars) in the temperature range of 25-140 degrees C. Pd/C shows the highest glycidol conversion (96%) under solvent free conditions after 24 h with high selectivity to 1,2-propanediol (93%). The effect of the solvent was also investigated and it was demonstrated that ethanol reduces drastically oligomer production enhancing selectivity up to 99% with a significant reaction time reduction (6 h). The Pd/C catalyst shows high recyclability and could be reused several times (9 cycles) without losses in activity and selectivity.

• 出版日期2016-3-5