Characterization and Comparison of Fast Pyrolysis Bio-oils from Pinewood, Rapeseed Cake, and Wheat Straw Using 13C NMR and Comprehensive GC × GC

Leila Negahdar, Arturo Gonzalez-Quiroga, Daria Otyuskaya, Hilal E. Toraman, Li Liu, Johann T.B.H. Jastrzebski, Kevin M. Van Geem, Guy B. Marin, Joris W. Thybaut, Bert M. Weckhuysen

Research output: Contribution to journalArticle

40 Citations (Scopus)

Abstract

Fast pyrolysis bio-oils are feasible energy carriers and a potential source of chemicals. Detailed characterization of bio-oils is essential to further develop its potential use. In this study, quantitative 13C nuclear magnetic resonance (13C NMR) combined with comprehensive two-dimensional gas chromatography (GC × GC) was used to characterize fast pyrolysis bio-oils originated from pinewood, wheat straw, and rapeseed cake. The combination of both techniques provided new information on the chemical composition of bio-oils for further upgrading. 13C NMR analysis indicated that pinewood-based bio-oil contained mostly methoxy/hydroxyl (≈30%) and carbohydrate (≈27%) carbons; wheat straw bio-oil showed to have high amount of alkyl (≈35%) and aromatic (≈30%) carbons, while rapeseed cake-based bio-oil had great portions of alkyl carbons (≈82%). More than 200 compounds were identified and quantified using GC × GC coupled to a flame ionization detector (FID) and a time of flight mass spectrometer (TOF-MS). Nonaromatics were the most abundant and comprised about 50% of the total mass of compounds identified and quantified via GC × GC. In addition, this analytical approach allowed the quantification of high value-added phenolic compounds, as well as of low molecular weight carboxylic acids and aldehydes, which exacerbate the unstable and corrosive character of the bio-oil.

Original languageEnglish (US)
Pages (from-to)4974-4985
Number of pages12
JournalACS Sustainable Chemistry and Engineering
Volume4
Issue number9
DOIs
StatePublished - Sep 6 2016

Fingerprint

Straw
pyrolysis
straw
nuclear magnetic resonance
Oils
Pyrolysis
wheat
Nuclear magnetic resonance
oil
Carbon
carbon
Essential oils
Caustics
essential oil
phenolic compound
Mass spectrometers
carboxylic acid
Carbohydrates
aldehyde
Carboxylic Acids

All Science Journal Classification (ASJC) codes

  • Chemistry(all)
  • Environmental Chemistry
  • Chemical Engineering(all)
  • Renewable Energy, Sustainability and the Environment

Cite this

Negahdar, Leila ; Gonzalez-Quiroga, Arturo ; Otyuskaya, Daria ; Toraman, Hilal E. ; Liu, Li ; Jastrzebski, Johann T.B.H. ; Van Geem, Kevin M. ; Marin, Guy B. ; Thybaut, Joris W. ; Weckhuysen, Bert M. / Characterization and Comparison of Fast Pyrolysis Bio-oils from Pinewood, Rapeseed Cake, and Wheat Straw Using 13C NMR and Comprehensive GC × GC. In: ACS Sustainable Chemistry and Engineering. 2016 ; Vol. 4, No. 9. pp. 4974-4985.
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abstract = "Fast pyrolysis bio-oils are feasible energy carriers and a potential source of chemicals. Detailed characterization of bio-oils is essential to further develop its potential use. In this study, quantitative 13C nuclear magnetic resonance (13C NMR) combined with comprehensive two-dimensional gas chromatography (GC × GC) was used to characterize fast pyrolysis bio-oils originated from pinewood, wheat straw, and rapeseed cake. The combination of both techniques provided new information on the chemical composition of bio-oils for further upgrading. 13C NMR analysis indicated that pinewood-based bio-oil contained mostly methoxy/hydroxyl (≈30{\%}) and carbohydrate (≈27{\%}) carbons; wheat straw bio-oil showed to have high amount of alkyl (≈35{\%}) and aromatic (≈30{\%}) carbons, while rapeseed cake-based bio-oil had great portions of alkyl carbons (≈82{\%}). More than 200 compounds were identified and quantified using GC × GC coupled to a flame ionization detector (FID) and a time of flight mass spectrometer (TOF-MS). Nonaromatics were the most abundant and comprised about 50{\%} of the total mass of compounds identified and quantified via GC × GC. In addition, this analytical approach allowed the quantification of high value-added phenolic compounds, as well as of low molecular weight carboxylic acids and aldehydes, which exacerbate the unstable and corrosive character of the bio-oil.",
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Negahdar, L, Gonzalez-Quiroga, A, Otyuskaya, D, Toraman, HE, Liu, L, Jastrzebski, JTBH, Van Geem, KM, Marin, GB, Thybaut, JW & Weckhuysen, BM 2016, 'Characterization and Comparison of Fast Pyrolysis Bio-oils from Pinewood, Rapeseed Cake, and Wheat Straw Using 13C NMR and Comprehensive GC × GC', ACS Sustainable Chemistry and Engineering, vol. 4, no. 9, pp. 4974-4985. https://doi.org/10.1021/acssuschemeng.6b01329

Characterization and Comparison of Fast Pyrolysis Bio-oils from Pinewood, Rapeseed Cake, and Wheat Straw Using 13C NMR and Comprehensive GC × GC. / Negahdar, Leila; Gonzalez-Quiroga, Arturo; Otyuskaya, Daria; Toraman, Hilal E.; Liu, Li; Jastrzebski, Johann T.B.H.; Van Geem, Kevin M.; Marin, Guy B.; Thybaut, Joris W.; Weckhuysen, Bert M.

In: ACS Sustainable Chemistry and Engineering, Vol. 4, No. 9, 06.09.2016, p. 4974-4985.

Research output: Contribution to journalArticle

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T1 - Characterization and Comparison of Fast Pyrolysis Bio-oils from Pinewood, Rapeseed Cake, and Wheat Straw Using 13C NMR and Comprehensive GC × GC

AU - Negahdar, Leila

AU - Gonzalez-Quiroga, Arturo

AU - Otyuskaya, Daria

AU - Toraman, Hilal E.

AU - Liu, Li

AU - Jastrzebski, Johann T.B.H.

AU - Van Geem, Kevin M.

AU - Marin, Guy B.

AU - Thybaut, Joris W.

AU - Weckhuysen, Bert M.

PY - 2016/9/6

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