Chemical Research in Chinese Universities ›› 2019, Vol. 35 ›› Issue (2): 285-291.doi: 10.1007/s40242-019-8268-5

• Articles • Previous Articles     Next Articles

Production of Bio-hydrogen Using Bio-oil as a Potential Biomass-derived Renewable Feedstock

LIU Junxu, ZHU Lijuan, WANG Shengfei, WANG Yulan, HE Yuting, LI Quanxin   

  1. Key Laboratory of Urban Pollutant Conversion of Chinese Academy of Sciences, Anhui Key Laboratory of Biomass Clean Energy, Department of Chemical Physics, University of Science & Technology of China, Hefei 230026, P. R. China
  • Received:2018-08-27 Revised:2018-12-10 Online:2019-04-01 Published:2019-04-30
  • Contact: LI Quanxin E-mail:liqx@ustc.edu.cn
  • Supported by:
    Supported by the National Key R&D Program of China(No.2018YFB1501404).

Abstract: The bio-oil derived from pyrolysis of straw can be selectively converted into high-purity hydrogen by coupling three steps:(i) steam reforming(SR) of different bio-oils, (ii) water-gas shift(WGS), and (iii) the removal of CO2. The catalytic SR reaction over the NiLaTiAl catalyst, coupled with a low-temperature WGS reaction with the CuZnAl catalyst, promoted the conversion of various oxygen-containing organic compounds in the bio-oil into hydrogen and carbon dioxide. Under the optimized condition, light bio-oil achieved the highest conversion(99.8%, molar fraction), with a high hydrogen yield of 16.4%(mass fraction) and a H2 purity of 99.94%(volume fraction). The carbon deposition on the NiLaTiAl catalyst was the main factor caused catalyst deactivation. Production of hydrogen from different bio-oil model compounds was also investigated in detail.

Key words: Bio-oil, High-purity hydrogen, Integrated catalytic process, Oxygenated organic compound