Characterization and reactivity of soot from fast pyrolysis of lignocellulosic compounds and monolignols

Research output: Contribution to journalJournal article – Annual report year: 2018Researchpeer-review

  • Author: Trubetskaya, Anna

    Umeå University, Sweden

  • Author: Brown, Avery

    Worcester Polytechnic Institute, United States

  • Author: Tompsett, Geoffrey

    Worcester Polytechnic Institute, United States

  • Author: T. Timko, Michael

    Worcester Polytechnic Institute, United States

  • Author: Kling, Jens

    Center for Electron Nanoscopy, Technical University of Denmark, Fysikvej, 2800, Kgs. Lyngby, Denmark

  • Author: Broström, Markus

    Umeå University, Sweden

  • Author: Andersen, Mogens Larsen

    University of Copenhagen, Denmark

  • Author: Umeki, Kentaro

    Luleå University of Technology, Sweden

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This study presents the effect of lignocellulosic compounds and monolignols on the yield, nanostructure and reactivity of soot generated at 1250 °C in a drop tube furnace. The structure of soot was characterized by electron microscopy techniques, Raman spectroscopy and electron spin resonance spectroscopy. The CO2 reactivity of soot was investigated by thermogravimetric analysis. Soot from cellulose was more reactive than soot produced from extractives, lignin and monolignols. Soot reactivity was correlated with the separation distances between adjacent graphene layers, as measured using transmission electron microscopy. Particle size, free radical concentration, differences in a degree of curvature and multi-core structures influenced the soot reactivity less than the interlayer separation distances. Soot yield was correlated with the lignin content of the feedstock. The selection of the extraction solvent had a strong influence on the soot reactivity. The Soxhlet extraction of softwood and wheat straw lignin soot using methanol decreased the soot reactivity, whereas acetone extraction
had only a modest effect.
Original languageEnglish
JournalApplied Energy
Volume212
Pages (from-to)1489-1500
ISSN0306-2619
DOIs
Publication statusPublished - 2018
CitationsWeb of Science® Times Cited: No match on DOI

    Research areas

  • Fast pyrolysis, Lignocellulosic compounds and monolignols, Soot, Reactivity, Nanostructure
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