10.5071/19THEUBCE2011-OB5.4
Williams, P.T.
P.T.
Williams
Efica, C.
C.
Efica
Blanco Sanchez, P.
P.
Blanco Sanchez
Myers, L.
L.
Myers
Wu, C.
C.
Wu
Onwudili, J.A.
J.A.
Onwudili
Hydrogen and Syngas Production from Pyrolysis-Gasification of RDF and Wood Pellets in a Continuous Screw Kiln Reactor
ETA-Florence Renewable Energies
2011
Conference paper
Biomass
2011
en
978-88-89407-55-4
3 Pages
application/pdf
Proceedings of the 19th European Biomass Conference and Exhibition, 6-10 June 2011, pp. 1134-1136
The gasification of wastes and biomass is regarded as a viable thermal treatment process to produce syngas composed largely of hydrogen, methane, carbon monoxide and carbon dioxide. However, the process of gasification could be improved if the residual tar could be converted to hydrogen and methane gas and the carbon dioxide could be adsorbed via carbon capture within the process. Thereby the gases would have a much higher calorific value. In this work, a two stage reactor has been used to investigate the catalytic steam pyrolysisgasification of refuse derived fuel (RDF) derived from municipal solid waste. The first stage involves the pyrolysis of the RDF at 500 °C. The pyrolysis gases are then passed directly to the second stage where gasification of the evolved pyrolysis gases takes place at 800 °C in the presence of steam and a catalyst. A novel NiSiO2 catalyst was used to convert the tar from pyrolysis into methane and hydrogen. The gases from pyrolysisgasification were analysed offline using packed column gas chromatography for hydrogen, methane, carbon monoxide, carbon dioxide and C1C4 hydrocarbons. BET surface area and porosity, Xray diffraction (XRD), and Transmission electron microscopy (TEM) were used to characterize the prepared catalysts. The results showed that the prepared catalysts had a high surface area and contained welldispersed nickel oxide particles. The presence of the NiSiO2 catalysts resulted in a marked increase in hydrogen production from the refuse derived fuel.
Proceedings of the 19th European Biomass Conference and Exhibition, 6-10 June 2011, Berlin, Germany, pp. 1134-1136