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Department of Mechanical Engineering, Energy and Materials, Industrial Engineering School, University of Extremadura, Av. Elvas s-n, 06006 Badajoz, Spain





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Academic Editor: Maryam Tabrizian

Abstract The rise in pellet consumption has resulted in a wider variety of materials for pellet manufacture. Thus, pellet industry has started looking for alternative products, such as wastes from agricultural activities, forestry and related industries, along with the combination thereof, obtaining a broad range of these products. In addition, the entry into force of EN ISO 17225 standard makes wood pellet market among other types possible for industry and household purposes. Therefore, wastes that are suitable for biomass use have recently increased. In this study, the main characteristics of ten kinds of laboratory-made pellets from different raw materials were analyzed. Thus, we have focused on the most limiting factors of quality standards that determine the suitability for biomass market, depending on the kind of pellet. The results showed considerable differences among the analyzed pellets, exceeding the limits established by the standard in almost all cases, especially concerning ash content and N and S composition. The requirements of the studied standard, very demanding for certain factors, disable the entry of these densified wastes in greater added value markets. View Full-Text

Keywords: pellets; characterization; standard; biomass; waste; bulk density; durability; ultimate analysis pellets; characterization; standard; biomass; waste; bulk density; durability; ultimate analysis





Autor: Teresa Miranda * , Irene Montero, Francisco José Sepúlveda, José Ignacio Arranz, Carmen Victoria Rojas and Sergio Nogales

Fuente: http://mdpi.com/



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