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Korean Journal of Chemical Engineering

, Volume 27, Issue 5, pp 1412–1418 | Cite as

Carbon nanofibers supported Ru catalyst for sorbitol hydrogenolysis to glycols: Effect of calcination

  • Long Zhao
  • Jinghong ZhouEmail author
  • Hong Chen
  • Mingguang Zhang
  • Zhijun Sui
  • Xinggui Zhou
Article

Abstract

Carbon nanofiber (CNFs) supported Ru catalysts for sorbitol hydrogenolysis to ethylene glycol and propylene glycol were prepared by incipient wetness impregnation, calcination and reduction. The effect of calcination on catalyst properties was investigated using thermal gravimetry analysis, temperature-programmed reduction, X-ray diffraction, X-ray photoelectron spectroscopy, transmission electron microscopy and N2 physisorption. The results indicated that calcination introduced a great amount of surface oxygen-containing groups (SOCGs) onto CNF surface and induced the phase transformation of Ru species, but slightly changed the texture of Ru/CNFs. The catalytic performance in sorbitol hydrogenolysis showed that Ru/CNFs catalyst calcined at 240 °C presented the highest glycol selectivities and reasonable glycol yields. It was believed that the inhibition and confinement effect of SOCGs around Ru particles as well as the high dispersion of Ru particles was the key factor for the catalytic activity.

Key words

Ru/CNFs Catalyst Calcination Sorbitol Hydrogenolysis Propylene Glycol Ethylene Glycol 

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Copyright information

© Korean Institute of Chemical Engineers, Seoul, Korea 2010

Authors and Affiliations

  • Long Zhao
    • 1
  • Jinghong Zhou
    • 2
    Email author
  • Hong Chen
    • 2
  • Mingguang Zhang
    • 2
  • Zhijun Sui
    • 1
  • Xinggui Zhou
    • 1
  1. 1.State Key Laboratory of Chemical EngineeringEast China University of Science & TechnologyShanghaiP. R. China
  2. 2.Department of Chemical EngineeringEast China University of Science & TechnologyShanghaiP. R. China

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