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Hybrid plasma-catalytic steam reforming of toluene as a biomass tar model compound over Ni/Al 2 O 3 catalysts
Journal article   Open access   Peer reviewed

Hybrid plasma-catalytic steam reforming of toluene as a biomass tar model compound over Ni/Al 2 O 3 catalysts

S.Y. Liu, D.H. Mei, M.A. Nahil, Siddharth Gadkari, Sai Gu, P.T. Williams and X. Tu
Fuel Processing Technology, Vol.166, pp.269-275
19/07/2017

Abstract

Plasma-catalysis; Non-thermal plasma; Dielectric barrier discharge; Biomass gasification; Tar removal
In this study, plasma-catalytic steam reforming of toluene as a biomass tar model compound was carried out in a coaxial dielectric barrier discharge (DBD) plasma reactor. The effect of Ni/Al2O3 catalysts with different nickel loadings (5–20 wt%) on the plasma-catalytic gas cleaning process was evaluated in terms of toluene conversion, gas yield, by-products formation and energy efficiency of the plasma-catalytic process. Compared to the plasma reaction without a catalyst, the combination of DBD with the Ni/Al2O3 catalysts significantly enhanced the toluene conversion, hydrogen yield and energy efficiency of the hybrid plasma process, while significantly reduced the production of organic by-products. Increasing Ni loading of the catalyst improved the performance of the plasma-catalytic processing of toluene, with the highest toluene conversion of 52% and energy efficiency of 2.6 g/kWh when placing the 20 wt% Ni/Al2O3 catalyst in the plasma. The possible reaction pathways in the hybrid plasma-catalytic process were proposed through the combined analysis of both gas and liquid products.
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https://doi.org/10.1016/j.fuproc.2017.06.001View
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