催化学报 ›› 2013, Vol. 34 ›› Issue (12): 2230-2235.DOI: 10.1016/S1872-2067(12)60695-0

• 研究论文 • 上一篇    下一篇

Cu-MgO/USY催化甘油氢解制丙二醇

牛磊, 魏瑞平, 杨慧, 李想, 姜枫, 肖国民   

  1. 东南大学化学化工学院, 江苏南京211189
  • 收稿日期:2013-07-09 修回日期:2013-08-20 出版日期:2013-11-25 发布日期:2013-11-25
  • 通讯作者: 肖国民
  • 基金资助:

    国家自然科学基金(20906013, 21076044).

Hydrogenolysis of glycerol to propanediols over Cu-MgO/USY catalyst

Lei Niu, Ruiping Wei, Hui Yang, Xiang Li, Feng Jiang, Guomin Xiao   

  1. School of Chemistry and Chemical Engineering, Southeast University, Nanjing 211189, Jiangsu, China
  • Received:2013-07-09 Revised:2013-08-20 Online:2013-11-25 Published:2013-11-25
  • Contact: Guomin Xiao
  • Supported by:

    This was supported by the National Natural Science Foundation of China (20906013, 21076044).

摘要:

以USY为载体制备了一系列不同Cu和MgO负载量的酸碱双功能催化剂Cu-MgO/USY用于甘油氢解制丙二醇反应, 并采用X射线粉末衍射、透射电镜、傅里叶红外光谱、NH3程序升温脱附等手段对该催化剂进行了表征. 结果表明, 负载后的USY载体其Y沸石特征峰保持完整, 且MgO的加入提高了Cu在载体表面的分散度. 在200℃, 3.5 MPa H2 下反应10 h以及6% 催化剂0.2Cu-MgO/USY (0.2 g Cu与1.0 g MgO负载于1.0 g USY上面)用量的条件下, 甘油转化率达到83.6%, 1,2-丙二醇及1,3-丙二醇的选择性分别为40%和19.4%.

关键词: 甘油氢解, 甘油, 1,2-丙二醇, 1,3-丙二醇

Abstract:

A series of acid-base bifunctional catalysts composed of USY with different Cu and MgO loadings were prepared, characterized, and tested for the hydrogenolysis of glycerol. The USY support retained the Y zeolite structure, and the introduction of MgO enhanced the dispersion of Cu in the support. At 200 ℃, 3.5 MPa H2, 10 h and with a 6% 0.2Cu-MgO/USY catalyst, 83.6% conversion of glycerol with 40% selectivity to 1,2-propanediol (1,2-PDO) and 19.4% selectivity to 1,3-propanediol (1,3-PDO) was achieved.

Key words: Hydrogenolysis, Glycerol, 1,2-Propanediol, 1,3-Propanediol