Catalysis Letters

, Volume 135, Issue 3–4, pp 275–281

The Influence of Copper Particle Dispersion in Cu/SiO2 Catalysts on the Hydrogenation Synthesis of Ethylene Glycol

  • Ying-Ying Zhu
  • Shu-Rong Wang
  • Ling-Jun Zhu
  • Xiao-Lan Ge
  • Xin-Bao Li
  • Zhong-Yang Luo
Article

Abstract

Cu/SiO2 catalysts were prepared by separate impregnation and deposition precipitation methods for the hydrogenation of dimethyl oxalate (DMO) to ethylene glycol (EG). XRD, TEM, H2-TPR, SEM, EDS and N2 physisorption were performed to characterize the textural and structural properties of the catalysts. The results showed that Cu particles from the deposition precipitation preparation were homogeneously dispersed on the support and their sizes were found to be smaller than those from the impregnation method and the catalyst produced by the deposition precipitation method gave higher EG yields at lower reaction temperatures and lower H2/DMO mole ratio.

Graphical Abstract

XRD patterns of Cu/SiO2 catalysts prepared by two methods a Cu/SiO2 (I) after calcination, b Cu/SiO2 (I) after reduction, c Cu/SiO2 (DP) after calcination, d Cu/SiO2 (DP) after reduction.

Keywords

Copper particle distribution Cu/SiO2 catalyst Dimethyl oxalate Ethylene glycol 

Copyright information

© Springer Science+Business Media, LLC 2010

Authors and Affiliations

  • Ying-Ying Zhu
    • 1
  • Shu-Rong Wang
    • 1
  • Ling-Jun Zhu
    • 1
  • Xiao-Lan Ge
    • 1
  • Xin-Bao Li
    • 1
  • Zhong-Yang Luo
    • 1
  1. 1.State Key Laboratory of Clean Energy UtilizationZhejiang UniversityHangzhouPeople’s Reoublic of China

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