Chem. J. Chinese Universities ›› 2020, Vol. 41 ›› Issue (8): 1818.doi: 10.7503/cjcu20200236

• Physical Chemistry • Previous Articles     Next Articles

Application of Co-Al Catalysts in Hydrogenation of Glycidol to 1,3-Propanediol

CAI Zhongshun, ZHU Zihui, PAN Jing, SUN Yanyan, XI Lingling, HOU Zhaoyin   

  1. Key Laboratory of Biomass Chemical Engineering, Ministry of Education, Department of Chemistry, Zhejiang University, Hangzhou 310028, China
  • Received:2020-04-27 Online:2020-08-10 Published:2020-07-31
  • Supported by:
    Supported by the National Natural Science Foundation of China(Nos.21473155, 21273198, 21773206) and the Natural Science Foundation of Zhejiang Province, China(No.L12B03001).

Abstract: 1,3-propanediol(1,3-PDO) is an important intermediate for the synthesis of polytrimethylene terephthalate(PTT), and it is currently produced via the fermentation of glycerol. In this work, a series of Cox/Al2O3 catalysts were prepared via the controlled calcination and reduction of Co-Al hydrotalcite, which were introduced to catalyze the hydrogenation of glycidol to produce 1,3-PDO. The best performance was obtained over Co2/Al2O3 catalyst after 5 h of reaction at 80℃ and 2 MPa H2. The conversion of glycidol was 99.8%, and the yield of 1,3-PDO was 68.0%. This result is not only higher than that of the Ni2/Al2O3 and Cu2/Al2O3 catalysts prepared by the same method, but also higher than that of the Al2O3 supported Pt, Pd, Ru catalysts. Characterization results indicated that the interaction between active site Co and the acid site of the Al2O3 support is of great importance to the activity of the catalyst and the selectivity towards 1,3-PDO.

Key words: 1,3-Propanediol, Hydrogenation, Glycidol, Hydrotalcite

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