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

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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.

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Acknowledgments

The authors appreciate financial support granted from the International Science and Technology Cooperation Program (2009DFA61050), National High Technology Research and Development Program of China (2009AA05Z407) and National Basic Research Program of China (2007CB210200). Also great appreciate the support from National Natural Science Foundation (50676085 & 90610035) and Doctoral Foundation of Ministry of Education of China (20090101110034).

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Authors and Affiliations

  1. State Key Laboratory of Clean Energy Utilization, Zhejiang University, 310027, Hangzhou, People’s Reoublic of China

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

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  1. Ying-Ying Zhu
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  2. Shu-Rong Wang
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  3. Ling-Jun Zhu
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  4. Xiao-Lan Ge
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Correspondence to Shu-Rong Wang.

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Zhu, YY., Wang, SR., Zhu, LJ. et al. The Influence of Copper Particle Dispersion in Cu/SiO2 Catalysts on the Hydrogenation Synthesis of Ethylene Glycol. Catal Lett 135, 275–281 (2010). https://doi.org/10.1007/s10562-010-0298-z

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