Comparison of the Combustion Behaviors of Agricultural Wastes Under Dry Air and Oxygen

Hanzade Haykiri-Acma
Department of Chemical Engineering, Istanbul Technical University, Istanbul, Turkey

Serdar Yaman
Department of Chemical Engineering, Istanbul Technical University, Istanbul, Turkey

Ladda ner artikelhttp://dx.doi.org/10.3384/ecp11057251

Ingår i: World Renewable Energy Congress - Sweden; 8-13 May; 2011; Linköping; Sweden

Linköping Electronic Conference Proceedings 57:34, s. 251-257

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Publicerad: 2011-11-03

ISBN: 978-91-7393-070-3

ISSN: 1650-3686 (tryckt), 1650-3740 (online)


Burning tests of some agricultural waste biomass materials such as sunflower seed shell (SSS); hazelnut shell (HS); rice hull (RH); and olive refuse (OR) were performed in order to compare the combustion reactivities of these materials under dry air and oxygen. For this purpose; these samples were burned in a thermal analyzer to obtain TGA (Thermogravimetric Analysis); DTG (Derivative Thermogravimetry); DTA (Differential Thermal Analysis); and DSC (Differential Scanning Calorimetry) thermograms under both conditions. Initial sample mass was approximately 10 mg for each sample which has a particle size of <0.25 mm; and temperature was raised from ambient to 900°C with a linear heating rate of 40°C/min under gas flow rate of 100 mL/min. No hold time was allowed at the final temperature. The results of this study showed that the thermal reactivities of biomass species change in a wide region; and the type of the oxidative medium plays very important effects on the burning parameters such as the ignition point; maximum rate of combustion and its temperature; as well as the end point of burning. On the other hand; macromolecular ingredients of biomass such as hemicellulosics; celluloses; and lignin have significant effects on the combustion behavior of biomass.


Biomass; Agricultural Wastes; Combustion; Dry Air; Oxygen


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