Catalytic Supercritical Water Gasification of Refuse Derived Fuel for High Energy Content Fuel Gas

Onwudili, Jude A., Yildirir, Eyup and Williams, Paul T. (2017). Catalytic Supercritical Water Gasification of Refuse Derived Fuel for High Energy Content Fuel Gas. Waste and Biomass Valorization, Early , pp. 359-367.

Abstract

Refuse derived fuel (RDF) was processed using hydrothermal gasification at high temperature to obtain a high energy content fuel gas. Supercritical water gasification of RDF was conducted at a temperature of 500 °C and 29 MPa pressure and also in the presence of a solid RuO2/γ-Al2O3 catalyst. The effect of residence time (0, 30 and 60 min) and different ruthenium loadings (5, 10, 20 wt% RuO2/γ-Al2O3) were investigated. Up to 93 % carbon gasification efficiency was achieved in the presence of 20 wt% RuO2/γ-Al2O3 catalyst. The fuel gas with the highest energy value of 22.5 MJ Nm−3 was produced with the 5 wt% RuO2/γ-Al2O3 catalyst after 30 min reaction time. The results were compared with the use of NaOH as a homogeneous catalyst. When NaOH was used, the maximum gross calorific value of the product gas was 32.4 MJ Nm−3 at 60 min reaction time as a result of CO2 fixation. High yields of H2 and CH4 were obtained in the presence of both the NaOH and RuO2/γ-Al2O3 catalysts.

Publication DOI: https://doi.org/10.1007/s12649-016-9597-y
Divisions: Engineering & Applied Sciences
Engineering & Applied Sciences > European Bioenergy Research Institute (EBRI)
Additional Information: © Springer Science+Business Media Dordrecht 2016. Funding: Turkish Government Scholarship to E.Y.
Full Text Link: https://link.sp ... 2649-016-9597-y
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Published Date: 2017-03-01
Authors: Onwudili, Jude A. ( 0000-0002-5355-9970)
Yildirir, Eyup
Williams, Paul T.

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