https://scholars.lib.ntu.edu.tw/handle/123456789/408302
標題: | Syngas production by chemical-looping gasification of wheat straw with Fe-based oxygen carrier | 作者: | Hu J. Li C. Guo Q. Dang J. Zhang Q. Lee D.-J. Yang Y. |
關鍵字: | Carbon monooxide;Chemical looping gasification;Hydrogen;Iron;Oxygen carrier | 公開日期: | 2018 | 卷: | 263 | 起(迄)頁: | 273-279 | 來源出版物: | Bioresource Technology | 摘要: | The iron-based oxygen carriers (OC's), Fe 2 O 3 /support (Al 2 O 3 , TiO 2 , SiO 2 and ZrO 2 ), for chemical looping gasification of wheat straw were prepared using impregnation method. The surface morphology, crystal structure, carbon deposition potential, lattice oxygen activity and selectivity of the yielded OCs were examined. The Fe 2 O 3 /Al 2 O 3 OCs at 60% loading has the highest H 2 yield, H 2 /CO ratio, gas yield, and carbon conversion amongst the tested OC's. Parametric studies revealed that an optimal loading Fe 2 O 3 of 60%, steam-to-biomass ratio of 0.8 and oxygen carrier-to-biomass ratio of 1.0 led to the maximum H 2 /CO ratio, gas yield, H 2 + CO ratio, and carbon conversion from the gasified wheat straw. High temperature, up to 950 °C, enhanced the gasification performance. A kinetic network interpreted the noted experimental results. The lattice oxygen provided by the prepared Fe 2 O 3 /Al 2 O 3 oxygen carriers promotes chemical looping gasification efficiencies from wheat straw. ? 2018 Elsevier Ltd |
URI: | https://scholars.lib.ntu.edu.tw/handle/123456789/408302 | ISSN: | 09608524 | DOI: | 10.1016/j.biortech.2018.02.064 |
顯示於: | 化學工程學系 |
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