Effects of several types of biomass fuels on the yield, nanostructure and reactivity of soot from fast pyrolysis at high temperatures

Anna Trubetskaya, Peter Arendt Jensen, Anker Degn Jensen, Angel David Garcia Llamas, Kentaro Umeki, Diego Gardini, Jens Kling, Richard B. Bates and Peter Glarborg

Applied Energy, 2016, vol. 171, issue C, 468-482

Abstract: This study presents the effect of biomass origin on the yield, nanostructure and reactivity of soot. Soot was produced from wood and herbaceous biomass pyrolysis at high heating rates and at temperatures of 1250 and 1400°C in a drop tube furnace. The structure of solid residues was characterized by electron microscopy techniques, X-ray diffraction and N2 adsorption. The reactivity of soot was investigated by thermogravimetric analysis. Results showed that soot generated at 1400°C was more reactive than soot generated at 1250°C for all biomass types. Pinewood, beechwood and wheat straw soot demonstrated differences in alkali content, particle size and nanostructure. Potassium was incorporated in the soot matrix and significantly influenced soot reactivity. Pinewood soot particles produced at 1250°C had a broader particle size range (27.2–263nm) compared to beechwood soot (33.2–102nm) and wheat straw soot (11.5–165.3nm), and contained mainly multi-core structures.

Keywords: Fast pyrolysis; Drop tube reactor; Soot; Potassium; Reactivity (search for similar items in EconPapers)
Date: 2016
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Citations: View citations in EconPapers (15)

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DOI: 10.1016/j.apenergy.2016.02.127

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