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Cultivation and Characterization of Cynara Cardunculus for Solid Biofuels Production in the Mediterranean Region
Institute for Solid Fuels Technology and Applications/Centre for Research & Technology Hellas, 4thkm N.R. Ptolemaida-Kozani, 50200 Ptolemaida, Greece
Department of Agriculture Crop Production and Rural Environment, School of Agricultural Sciences, University of Thessaly, Fytokou Street, N. Ionia, 348446 Volos, Greece
* Authors to whom correspondence should be addressed.
Received: 22 May 2008; in revised form: 7 July 2008 / Accepted: 10 July 2008 / Published: 15 July 2008
Abstract: Technical specifications of solid biofuels are continuously improved towards the development and promotion of their market. Efforts in the Greek market are limited, mainly due to the climate particularity of the region, which hinders the growth of suitable biofuels. Taking also into account the increased oil prices and the high inputs required to grow most annual crops in Greece, cardoon (Cynara cardunculus L.) is now considered the most important and promising sources for solid biofuel production in Greece in the immediate future. The reason is that cardoon is a perennial crop of Mediterranean origin, well adapted to the xerothermic conditions of southern Europe, which can be utilized particularly for solid biofuel production. This is due to its minimum production cost, as this perennial weed may perform high biomass productivity on most soils with modest or without any inputs of irrigation and agrochemicals. Within this framework, the present research work is focused on the planning and analysis of different land use scenarios involving this specific energy crop and the combustion behaviour characterization for the solid products. Such land use scenarios are based on quantitative estimates of the crop’s production potential under specific soil-climatic conditions as well as the inputs required for its realization in comparison to existing conventional crops. Concerning its decomposition behaviour, devolatilisation and char combustion tests were performed in a non-isothermal thermogravimetric analyser (TA Q600). A kinetic analysis was applied and accrued results were compared with data already available for other lignocellulosic materials. The thermogravimetric analysis showed that the decomposition process of cardoon follows the degradation of other lignocellulosic fuels, meeting high burnout rates. This research work concludes that Cynara cardunculus, under certain circumstances, can be used as a solid biofuel of acceptable quality.
Keywords: energy crops; thermogravimetry; devolatilization; combustion; cynara cardunculus.
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MDPI and ACS Style
Grammelis, P.; Malliopoulou, A.; Basinas, P.; Danalatos, N.G. Cultivation and Characterization of Cynara Cardunculus for Solid Biofuels Production in the Mediterranean Region. Int. J. Mol. Sci. 2008, 9, 1241-1258.
Grammelis P, Malliopoulou A, Basinas P, Danalatos NG. Cultivation and Characterization of Cynara Cardunculus for Solid Biofuels Production in the Mediterranean Region. International Journal of Molecular Sciences. 2008; 9(7):1241-1258.
Grammelis, Panagiotis; Malliopoulou, Anastasia; Basinas, Panagiotis; Danalatos, Nicholas G. 2008. "Cultivation and Characterization of Cynara Cardunculus for Solid Biofuels Production in the Mediterranean Region." Int. J. Mol. Sci. 9, no. 7: 1241-1258.