Mesoporous WO3 Supported Pt Catalyst for Hydrogenolysis of Glycerol to 1,3-Propanediol

Mesoporous tungsten trioxide (m-WO3) was prepared using an evaporation-induced self-assembly method and was used as the support of Pt for hydrogenolysis of glycerol to produce 1,3-propanediol. In comparison with commercial WO3, the m-WO3 presents a much larger surface area and better reducibility, which make the Pt particles highly dispersed on the support. At a reaction condition of 180°C, 5.5 MPa H2, and reaction time of 12 h, the Pt/m-WO3 catalyst afforded 18.0% conversion of glycerol and 39.2% selectivity for 1,3-propanediol, both of which are much higher than those on commercial Pt/WO3 catalyst.

摘要以金属酞菁为催化剂, 2,5-二羧酸-3,4-二烷氧基噻吩在水相中脱羧, 以较高的产率和纯度制得 3,4-二烷氧基噻吩, 避免了有机极性溶剂的使用, 催化剂重复使用 8 次仍表现出优异的催化性能. 另外, 通过简易的水蒸气蒸馏法即可分离出产物. 该法具有环境友好、操作简易和反应时间短等优点, 是一种制备 3,4-二烷氧基噻吩的绿色方法.

The excellent performance of Pt/mesoporous WO3 catalyst in glycerol hydrogenolysis is shown here. The high selectivity to 1,3-propanediol can be ascribed to the synergistic effect of Pt and WO3.Figure optionsDownload as PowerPoint slide