Experimental Study on Catalytic Biomass Gasification in a Bubbling Fluidized Bed |
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| Authors: | Zhenheng Cao Jun Chen Caiqin Wang |
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| Affiliation: | 1. Yanan University, School of Chemistry & Chemical Engineering, Yan'an, China;2. Shaanxi Key Laboratory of Chemical Reaction Engineering, Yan'an, China;3. Shaanxi Energy Institute, School of Chemical Engineering, Xianyang, China |
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| Abstract: | A bubbling fluidized‐bed gasification system was selected for catalytic steam gasification of rice straw with four Ni‐based catalysts, i.e., Ni/Al2O3, Ni/CeO2, Ni/MnO2, and Ni/MgO. The effect of temperature, steam/biomass ratio (S/B), and catalyst/biomass ratio (C/B) on the gas composition, char conversion, and hydrogen yield was evaluated. It was found that higher temperature and S/B promote hydrogen production and char conversion. The results also demonstrated that the catalytic activity of Ni/Al2O3 under different S/B values is better than those of the other catalysts. Regarding the catalyst activity, all four catalysts exhibited good performance in terms of tar removal and carbon conversion. However, the performance of Ni/Al2O3 was superior to that of the other three catalysts. |
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| Keywords: | Biomass Carbon conversion Hydrogen production Ni‐based catalysts Tar removal |
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