Results of the International Energy Agency round robin on fast pyrolysis bio-oil production

Douglas C. Douglas C. Elliott, Dietrich Meier, anja Oasmaa, Bert van de Beld, Anthony Bridgwater, Magnus Marklund

    Research output: Contribution to journalArticleScientificpeer-review

    17 Citations (Scopus)

    Abstract

    An international round robin study of the production of fast pyrolysis bio-oil was undertaken. A total of 15 institutions in six countries contributed. Three biomass samples were distributed to the laboratories for processing in fast pyrolysis reactors. Samples of the bio-oil produced were transported to a central analytical laboratory for analysis. The round robin was focused on validating the pyrolysis community understanding of production of fast pyrolysis bio-oil by providing a common feedstock for bio-oil preparation. The round robin included: distribution of three feedstock samples, hybrid poplar, wheat straw, and a blend of lignocellulosic biomasses, from a common source to each participating laboratory, preparation of fast pyrolysis bio-oil in each laboratory with the three feedstocks provided, and return of the three bio-oil products (minimum of 500 mL) with operational description to a central analytical laboratory for bio-oil property determination. The analyses of interest were CHN, S, trace element analysis, water, ash, solids, pyrolytic lignin, density, viscosity, carboxylic acid number, and accelerated aging of bio-oil. In addition, an effort was made to compare the bio-oil components to the products of analytical pyrolysis through gas chromatography/mass spectrometry (GC/MS) analysis. The results showed that clear differences can occur in fast pyrolysis bio-oil properties by applying different process configurations and reactor designs in small scale. The comparison to the analytical pyrolysis method suggested that pyrolysis (Py)-GC/MS could serve as a rapid qualitative screening method for bio-oil composition when produced in small-scale fluid-bed reactors. Gel permeation chromatography was also applied to determine molecular weight information. Furthermore, hot vapor filtration generally resulted in the most favorable bio-oil product, with respect to water, solids, viscosity, and carboxylic acid number. These results can be helpful in understanding the variation in bio-oil production methods and their effects on bio-oil product composition.
    Original languageEnglish
    Pages (from-to)5111-5119
    Number of pages9
    JournalEnergy & Fuels
    Volume31
    Issue number5
    DOIs
    Publication statusPublished - 18 May 2017
    MoE publication typeA1 Journal article-refereed

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    Oils
    Pyrolysis
    Feedstocks
    Carboxylic Acids
    Ashes
    Carboxylic acids
    Gas chromatography
    Mass spectrometry
    Biomass
    Water analysis
    Viscosity
    Lignin
    Straw
    Trace Elements
    Gel permeation chromatography
    Trace elements
    Chemical analysis
    Screening
    Aging of materials
    Molecular weight

    Cite this

    Douglas C. Elliott, D. C., Meier, D., Oasmaa, A., van de Beld, B., Bridgwater, A., & Marklund, M. (2017). Results of the International Energy Agency round robin on fast pyrolysis bio-oil production. Energy & Fuels, 31(5), 5111-5119. https://doi.org/10.1021/acs.energyfuels.6b03502
    Douglas C. Elliott, Douglas C. ; Meier, Dietrich ; Oasmaa, anja ; van de Beld, Bert ; Bridgwater, Anthony ; Marklund, Magnus. / Results of the International Energy Agency round robin on fast pyrolysis bio-oil production. In: Energy & Fuels. 2017 ; Vol. 31, No. 5. pp. 5111-5119.
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    abstract = "An international round robin study of the production of fast pyrolysis bio-oil was undertaken. A total of 15 institutions in six countries contributed. Three biomass samples were distributed to the laboratories for processing in fast pyrolysis reactors. Samples of the bio-oil produced were transported to a central analytical laboratory for analysis. The round robin was focused on validating the pyrolysis community understanding of production of fast pyrolysis bio-oil by providing a common feedstock for bio-oil preparation. The round robin included: distribution of three feedstock samples, hybrid poplar, wheat straw, and a blend of lignocellulosic biomasses, from a common source to each participating laboratory, preparation of fast pyrolysis bio-oil in each laboratory with the three feedstocks provided, and return of the three bio-oil products (minimum of 500 mL) with operational description to a central analytical laboratory for bio-oil property determination. The analyses of interest were CHN, S, trace element analysis, water, ash, solids, pyrolytic lignin, density, viscosity, carboxylic acid number, and accelerated aging of bio-oil. In addition, an effort was made to compare the bio-oil components to the products of analytical pyrolysis through gas chromatography/mass spectrometry (GC/MS) analysis. The results showed that clear differences can occur in fast pyrolysis bio-oil properties by applying different process configurations and reactor designs in small scale. The comparison to the analytical pyrolysis method suggested that pyrolysis (Py)-GC/MS could serve as a rapid qualitative screening method for bio-oil composition when produced in small-scale fluid-bed reactors. Gel permeation chromatography was also applied to determine molecular weight information. Furthermore, hot vapor filtration generally resulted in the most favorable bio-oil product, with respect to water, solids, viscosity, and carboxylic acid number. These results can be helpful in understanding the variation in bio-oil production methods and their effects on bio-oil product composition.",
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    Douglas C. Elliott, DC, Meier, D, Oasmaa, A, van de Beld, B, Bridgwater, A & Marklund, M 2017, 'Results of the International Energy Agency round robin on fast pyrolysis bio-oil production', Energy & Fuels, vol. 31, no. 5, pp. 5111-5119. https://doi.org/10.1021/acs.energyfuels.6b03502

    Results of the International Energy Agency round robin on fast pyrolysis bio-oil production. / Douglas C. Elliott, Douglas C.; Meier, Dietrich; Oasmaa, anja; van de Beld, Bert; Bridgwater, Anthony; Marklund, Magnus.

    In: Energy & Fuels, Vol. 31, No. 5, 18.05.2017, p. 5111-5119.

    Research output: Contribution to journalArticleScientificpeer-review

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