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Dry and Hydrothermal Co-Carbonization of Mixed Refuse-Derived Fuel (RDF) for Solid Fuel Production

2024-01-16Artigo científico Acesso aberto
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dc.contributor.authorLongo, Andrei
dc.contributor.authorAlves, Octávio
dc.contributor.authorSen, Ali Umut
dc.contributor.authorNobre, Catarina
dc.contributor.authorBrito, Paulo
dc.contributor.authorGonçalves, Margarida
dc.contributor.institutionDQ - Departamento de Química
dc.contributor.institutionMEtRICS - Centro de Engenharia Mecânica e Sustentabilidade de Recursos
dc.contributor.pblMDPI - Multidisciplinary Digital Publishing Institute
dc.date.accessioned2024-09-26T22:25:20Z
dc.date.available2024-09-26T22:25:20Z
dc.date.issued2024-01-16
dc.descriptionFunding Information: The present work was funded by the Fundação para a Ciência e Tecnologia, I.P. (Portuguese Foundation for Science and Technology), by the project (UIDB/04077/2020-2023 and UIDP/04077/2020-2023) of Mechanical Engineering and Resource Sustainability Center—MEtRICs, by the project UIDB/00239/2020 of Forest Research Centre—CEF, by the project UIDB/05064/2020 (VALORIZA—Research Centre for Endogenous Resource Valorization), and by the Regional Operational Program of Alentejo (Alentejo2020) under Portugal 2020 (Operational Program for Competitiveness and Internationalization), grant no. ALT20-05-3559-FSE-000035. Publisher Copyright: © 2024 by the authors.
dc.description.abstractThe present study aims to test several conditions of the thermochemical pretreatment of torrefaction and carbonization to improve the physical and combustible properties of the Portuguese RDF. Therefore, two different types of RDF were submitted alone or mixed in 25%, 50%, and 75% proportions to dry carbonization processes in a range of temperatures between 250 to 350 °C and residence time between 15 and 60 min. Hydrothermal carbonization was also carried out with RDF samples and their 50% mixture at temperatures of 250 and 300 °C for 30 min. The properties of the 51 chars and hydrochars produced were analyzed. Mass yield, apparent density, proximate and elemental analysis, ash mineral composition, and higher heating value (HHV), among others, were determined to evaluate the combustion behavior improvement of the chars. The results show that after carbonization, the homogeneity and apparent density of the chars were increased compared to the raw RDF wastes. The chars and hydrochars produced present higher HHV and lower moisture and chlorine content. In the case of chars, a washing step seems to be essential to reduce the chlorine content to allow them to be used as an alternative fuel. In conclusion, both dry and wet carbonization demonstrated to be important pretreatments of the RDF to produce chars with improved physical and combustion properties.en
dc.description.versionpublishersversion
dc.description.versionpublished
dc.format.extent21
dc.format.extent4055256
dc.identifier.doi10.3390/reactions5010003
dc.identifier.issn2624-781X
dc.identifier.otherPURE: 99743266
dc.identifier.otherPURE UUID: 9bc234ac-b6d2-4d8f-90b1-3a4ba3fd5920
dc.identifier.otherScopus: 85188955096
dc.identifier.otherWOS: 001192541200001
dc.identifier.otherORCID: /0000-0002-0940-519X/work/168381056
dc.identifier.urihttp://hdl.handle.net/10362/172485
dc.identifier.urlhttps://www.scopus.com/pages/publications/85188955096
dc.language.isoeng
dc.peerreviewedyes
dc.subjectcarbonization
dc.subjectlignocellulosic wastes
dc.subjectpolymeric wastes
dc.subjectRDF
dc.subjectwaste valorization
dc.subjectChemical Engineering (miscellaneous)
dc.subjectChemistry (miscellaneous)
dc.subjectSDG 7 - Affordable and Clean Energy
dc.titleDry and Hydrothermal Co-Carbonization of Mixed Refuse-Derived Fuel (RDF) for Solid Fuel Productionen
dc.typejournal article
degois.publication.firstPage77
degois.publication.issue1
degois.publication.lastPage97
degois.publication.titleReactions
degois.publication.volume5
dspace.entity.typePublication
rcaap.rightsopenAccess

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