Chem. J. Chinese Universities ›› 2013, Vol. 34 ›› Issue (9): 2178.doi: 10.7503/cjcu20130258

• Physical Chemistry • Previous Articles     Next Articles

Investigation on the Aqueous-phase Hydrogenation of Bio-oil for Saturated Alcohols Production over Ni-B Amorphous Catalysts

YU Yu-Xiao1,2, ZHANG Xing-Hua1,2, WANG Tie-Jun1, XU Ying1, MA Long-Long1, ZHANG Qi1, ZHANG Li-Min3   

  1. 1. CAS Key Laboratory of Renewable Energy, Guangzhou Institute of Energy Conversion, Chinese Academy of Sciences, Guangzhou 510640, China;
    2. University of Chinese Academy of Sciences, Beijing 100049, China;
    3. College of Chemical and Biological Engineering, Changsha University of Science & Technology, Changsha 410004, China
  • Received:2013-03-19 Online:2013-09-10 Published:2013-08-30

Abstract:

Ni-B amorphous catalysts were prepared by chemical reduction of nickel chloride with potassium borohydride aqueous solution and characterized by X-ray diffraction(XRD), Brunauer-Emmett-Tetter(BET), scanning electron microscopy(SEM), transmission electron microscopy(TEM), inductively coupled plasma(ICP) techniques. The catalytic performances of model compounds and bio-oil to produce saturated alcohols were evaluated in a semi-batch reactor. The results showed that the conversion of model compounds(acetone, furfural and phenol) and the selectivity of saturated alcohols reached 99.99% and 90.00% at 110 ℃, 4.0 MPa(initial pressure). Under the conditions of 150 ℃ and 4.0 MPa, the yield of saturated alcohols reached 47.54%. High temperature of above 150 ℃ resulted in the transformation of amorphous phase to form crystal, which was attributed to the low catalytic activity. This work provides a new alternative for the production of saturated alcohols from bio-oil.

Key words: Bio-oil, Ni-B catalyst, Aqueous-phase reforming, Saturated alcohol

CLC Number: 

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