Co-pyrolysis of biomass with waste tyres: Upgrading of liquid bio-fuel

Juan D. Martínez, Alberto Veses, Ana M. Mastral, Ramón Murillo, Maria V. Navarro, Neus Puy, Anna Artigues, Jordi Bartrolí, Tomás García

    Research output: Contribution to journalArticlepeer-review

    230 Scopus citations

    Abstract

    Co-pyrolysis of forestry wastes and waste tyres is carried out using different facilities: a fixed bed reactor and a continuous auger reactor. Remarkably, only one phase is found in the liquid fraction, which is not achieved by mixture of the pure liquids. In addition, positive effects between waste tyre and biomass are evidenced, being more notable even synergetic in the auger reactor. It is found that whilst acidity, density and oxygen content decrease, pH and calorific value increase with respect to the merely biomass pyrolysis liquid, leading to upgraded bio-oil. Upgrading process is linked to the presence of radical interactions between waste tyres and biomass pyrolysis products. In addition, it is observed that the addition of waste tyres to the feedstock blend is significantly decreasing the amount of aldehydes and phenolic compounds, which is beneficial for improving the stability of the new bio-oils.

    Original languageEnglish
    Pages (from-to)263-271
    Number of pages9
    JournalFuel Processing Technology
    Volume119
    DOIs
    StatePublished - Mar 2014

    Bibliographical note

    Funding Information:
    The authors would like to thank the Aragon Regional Government (DGA) and the Caixa Bank for financial support (Project GA-LC-015/2011 ). The authors also thank MINECO and FEDER funds for providing partial support for this work (project CTQ2012-37984-C02-01 ). Juan D. Martínez thanks the Fundación Carolina for his fellowship as well as the Enlaza-Mundos Program. Part of the research carried out at UAB has been funded by MICINN ( CTQ2009-13873 ).

    Keywords

    • Bio-oil
    • Biomass
    • Pyrolysis
    • Upgrading
    • Waste tyre

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