Fuel 212 (2018) 626–637 Contents lists available at ScienceDirect Fuel journal homepage: www.elsevier.com/locate/fuel Full Length Article Air- and oxygen-blown characterization of coal and biomass by thermogravimetric analysis Mauro Mureddu , Federica Dessì, Alessandro Orsini, Francesca Ferrara, Alberto Pettinau Sotacarbo S.p.A. – Grande Miniera di Serbariu, 09013 Carbonia, Italy GR APHICAL A BSTRACT ARTICLE I NFO ABSTRACT Keywords: This paper reports on the results of air-blown combustion and oxy-combustion kinetic characterization (com- Thermogravimetric analysis (TGA) paring two diﬀerent isoconversional methods: Flynn-Wall-Ozawa and Kissinger-Akahira-Sunose) of diﬀerent Combustion kinds of coal (from Italy, South Africa and Hungary) and biomass (pine and eucalyptus chips) by thermo- Oxy-combustion gravimetric analysis (TGA) and diﬀerential scanning calorimeter (DSC) together with the assessment of diﬀerent Coal characteristic combustion parameters. It can be observed that the burning rate of fuels can be improved by the Biomass oxy-combustion process, shortening the burning time (a mean reduction of the burnout time of 14% and 22% can be observed for coal and biomass samples, respectively). Moreover, biomass shows better ignition perfor- mance than coal and enhances combustibility indexes (S and H ), especially in oxy-combustion conditions. For example, the S index, which reﬂects combustion properties, increases by an order of magnitude
Fuel – Elsevier
Published: Jan 15, 2018
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