Conversion of agricultural waste into stable biocrude using spinel oxide catalysts

被引:14
作者
Atanda L. [1 ]
Fraga G.L.L. [2 ]
Ahmed M.H.M. [1 ]
Alothman Z.A. [3 ]
Na J. [1 ]
Batalha N. [2 ]
Aslam W. [1 ]
Konarova M. [1 ]
机构
[1] Nanomaterials Centre, Australian Institute for Bioengineering and Nanotechnology (AIBN), The University of Queensland, Brisbane
[2] School of Chemical Engineering, The University of Queensland, Brisbane
[3] Chemistry Department, College of Science, King Saud University, Riyadh
关键词
Agricultural waste; Biomass; Deoxygenation; Pyrolysis; Spinel oxides;
D O I
10.1016/j.jhazmat.2020.123539
中图分类号
学科分类号
摘要
Biomass, the feedstock for biocrude and ultimately renewable diesel is a low energy density feedstock. The transport of this feedstock over long distance has been proven to be a major burden on the commercialisation of biorefining. Therefore, it has been generally accepted that biomass should be upgraded to biocrude (a relatively high energy density liquid) in close proximity to the biomass sources. The biocrude liquid would then be transported to a biorefinery. Biocrude contains large amounts of oxygen (generally up to 38 wt%) that is removed from the crude in the refining process. In this study, we have synthesised a range of spinel oxide based catalysts to remove oxygen from the biocrude during the catalytic fast pyrolysis. The activity of spinel oxide (MgB2O4 where B = Fe, Al, Cr, Ga, La, Y, In) catalysts were screened for the pyrolysis reaction. While all the tested spinel oxides deoxygenated the pyrolysis vapour, MgCr2O4 was found to be effective in terms of oxygen removal efficiency relative to the quantity of bio oil produced. © 2020 Elsevier B.V.
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