Abstract
According to the European standard EN ISO 21640:2021, Solid Recovered Fuels (SRF) is defined as solid fuel made from non-hazardous waste used for energy recovery, that can be produced by specific waste, municipal solid waste, industrial waste, commercial waste, construction and demolition waste and sewage sludge. These fuels can be used to generate electricity and/or thermal energy, promoting a low-carbon and circular economy. In recent years, the use of SFR has expanded to other interesting and promising fields, such as gasification or combined gasification and pyrolysis.
This work aims to clarify the terminology of SRF, identify the production of different fractions of SRF in Portugal (industrial or municipal-waste source), classify each fraction, according to its potential and identify the main barriers to the gasification of SRF. For that, it was performed several physical-chemical analyses on SRF samples from different origins and locations.
Results showed that in Portugal, SRF production can be divided into two typologies considering their origin: SRF from urban wastes or SRF from industrial wastes. Regarding the urban wastes SRF, in 2019 it was produced 683 tons in Portugal. The main physical-chemical characteristics demonstrate levels of moisture between 33.9% and 39.14%, low heating values (LHV) in order of 12 MJ/kg, and high content of heavy metals, sulfur, and chlorine. Regarding the SRF from industrial wastes, it was identified an annual production of above 200 thousand tons in 2019. The characteristics or physical-chemical composition of this type of SRF, namely low percentage of humidity (15‒17.3%), LHV in order of 19.43 MJ/kg, and also the low concentration of heavy metals, confirm the potential use of this product in gasification processes.
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Pacheco, N., Ribeiro, A., Araújo, J., Castro, C., Vilarinho, C., Carvalho, J. (2023). Gasification Potential of Solid Recovered Fuels (SRF) Produced in Portugal. In: Duque de Brito, P.S., et al. Proceedings of the 2nd International Conference on Water Energy Food and Sustainability (ICoWEFS 2022). ICoWEFS 2022. Springer, Cham. https://doi.org/10.1007/978-3-031-26849-6_30
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DOI: https://doi.org/10.1007/978-3-031-26849-6_30
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