Characterization of woodstove briquettes from torrefied biomass and coal

Research output: Contribution to journalJournal article – Annual report year: 2019Researchpeer-review

  • Author: Trubetskaya, Anna

    National University of Ireland, Galway

  • Author: Leahy, James J.

    University of Limerick, Ireland

  • Author: Yazhenskikh, Elena

    Jülich Research Centre, Germany

  • Author: Müller, Michael

    Jülich Research Centre, Germany

  • Author: Layden, Peter

    Arigna Fuels, Ireland

  • Author: Johnson, Robert

    Arigna Fuels, Ireland

  • Author: Ståhl, Kenny

    Department of Chemistry, Technical University of Denmark, Bygning 206, 2800, Lyngby, Denmark

  • Author: Monaghan, Rory F.D.

    National University of Ireland, Galway, Ireland

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Using waste biomass materials offers the potential to reduce the greenhouse gas emissions from fossil fuels. Torrefaction is very useful for improving the fuel properties of biomass in order to better match those of coal. The aim of this work is to compare the properties of torrefied low quality biomass briquettes against coal equivalents. The composition of the briquettes was characterized by 13C CP/MAS, proximate analysis, and X-ray diffraction and the results were compared with equilibrium calculations. In addition to these techniques, we report for the first time on the use of XμCT for characterizing such materials. The XμCT analysis showed that the briquette structure contains carbon, binder and inorganic matter, with quartz retained from the original feedstock in torrefied biomass and coal briquettes. The CO2 reactivity of pulverized briquettes was investigated by thermogravimetric analysis. Results showed that the inorganic matter influences the reactivity less than the organic composition and porosity. Importantly from a technological standpoint, the increase in binder concentration and replacement of starch with resin binder did not influence the reactivity and calorific value of a pulverized briquette.

Original languageEnglish
JournalEnergy
Volume171
Pages (from-to)853-865
Number of pages13
ISSN0360-5442
DOIs
Publication statusPublished - 2019
CitationsWeb of Science® Times Cited: No match on DOI

    Research areas

  • Binders, Char, Olive stones and coal briquettes, Solid-state NMR, Torrefaction, XμCT

ID: 166242179