Abstract
In accordance with sustainable economic and social development, Europe supports the use of energy from renewable sources to decrease the use of fossil fuels. Among renewable energy sources, wood, especially production wood waste from the supply chain, represents an exploitable source in line with a circular economy development. In this context, processing of residues produced by wood companies becomes an important resource. This work deals with the possible energy recovery of glued wood wastes. Two solid biofuels were produced from glued wood wastes: pellets and briquettes. They have been produced in collaboration with a local company and analyzed according to the applicable EN ISO international standards. The results were compared with the limits imposed by the standards in order to identify their quality class and their applicability to the current market. The amount of adhesive present in the wood wastes does not negatively affect the intrinsic characteristics of the material that is suitable for the production of solid biofuels. In addition, the amount of wood waste containing cross-linked polyurethane was calculated in order not to compromise the quality of solid biofuels made therefrom.
Highlights
The need to detach from fossil resources by developing a smart use of renewable ones must be the foundation of the new perspectives to mitigate environmental problems by allowing an economic grow
The results were compared to the current EN ISO 17225-2 (2014) standard
The mechanical durability value is 95.8% and it does not reach the minimum value stated for a B quality class (96.5%)
Summary
The need to detach from fossil resources by developing a smart use of renewable ones must be the foundation of the new perspectives to mitigate environmental problems by allowing an economic grow. Different sources of energies, such as solar, wind, geothermal and biomass, can be used in heating systems (Rentizelas et al 2009). Wind and geothermal energy closely depend on natural conditions. The global capacity of the solar panels has spread rapidly over the past decade which will lead to a significant amount of panels to be disposed (7–8 million tons) by the end of the year 2030, which can significantly increase to an estimated amount of 50–60 million tons by 2050 (Weckend et al 2016). Contrary to solar or wind energy sources, biomass can be stored and used as needed. A reduction in greenhouse gas emissions, greater safety and development of the local economy are some of
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