High efficient production of hydrogen from crude bio-oil via an integrative process between gasification and current-enhanced catalytic steam reforming

• Published in: International journal of hydrogen energy Vol. 35; no. 2; pp. 518 - 532
• Main Authors: Kan, Tao, Xiong, Jiaxing, Li, Xinglong, Ye, Tongqi, Yuan, Lixia, Torimoto, Youshifumi, Yamamoto, Mitsuo, Li, Quanxin
• Format: Journal Article
• Language: English
• Published: Elsevier Ltd 2010
• Subjects: Byproducts; Carbon; Carbon dioxide; Catalysis; Catalysts; Catalytic steam reforming; Conversion; Crude bio-oil; Current; Gasification; Hydrogen; Reforming; Gasification; Catalytic steam reforming; Hydrogen; Current; Crude bio-oil
• ISSN: 0360-3199; 1879-3487
• DOI: 10.1016/j.ijhydene.2009.11.010

High efficient production of hydrogen from the crude bio-oil was performed in the gasification-reforming dual beds. A recently developed electrochemical catalytic reforming method was applied in the downstream reforming bed using NiCuZnAl catalyst. Production of hydrogen from the crude bio-oil through both the single gasification and integrative gasification-reforming processes was investigated. The maximum hydrogen yield of 81.4% with carbon conversion of 87.6% was obtained through the integrative process. Hydrogen is a major product (∼73 vol%) together with by-products of CO 2 (∼26 vol%) as well as very low content of CO (<1%) and a trace amount of CH 4 through the integrative route. In particular, the deactivation of the catalyst was significantly depressed by using the integrative gasification-reforming method, comparing to the direct reforming of the crude bio-oil. The mechanism and evaluation for the downstream electrochemical catalytic reforming were also discussed. The integrative process with higher hydrogen yield and carbon conversion, potentially, would be a useful route to produce hydrogen from the crude bio-oil.