Production of Bio-hydrogen Using Bio-oil as a Potential Biomass-derived Renewable Feedstock |
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| Authors: | LIU Junxu ZHU Lijuan WANG Shengfei WANG Yulan HE Yuting LI Quanxin |
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| Institution: | 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 |
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| 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. |
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| Keywords: | Bio-oil High-purity hydrogen Integrated catalytic process Oxygenated organic compound |
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