Multi-technique characterization of fast pyrolysis oils

Charon, Nadège; Ponthus, Jérémie; Espinat, D.; Broust, François; Volle, Ghislaine; Valette, Jérémy; Meier, Dietrich

doi:10.1016/j.jaap.2015.10.012

Cited by 54 publications

(44 citation statements)

References 30 publications

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“…The significant amount of these light oxygenates in WS bio-oil is consistent with the high amounts of alkali metals in wheat straw, which can act as catalyst for secondary cracking reactions. 10 , 57 …”

Section: Results and Discussionmentioning

confidence: 99%

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

Negahdar

Gonzalez‐Quiroga

Otyuskaya

et al. 2016

ACS Sustainable Chem. Eng.

125

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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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Section: Results and Discussionmentioning

confidence: 99%

“… 7 , 8 To fully realize the potential of the fast pyrolysis process, detailed knowledge on the chemical composition of the bio-oil is essential. 7 , 9 , 10 …”

Section: Introductionmentioning

confidence: 99%

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

Negahdar

Gonzalez‐Quiroga

Otyuskaya

et al. 2016

ACS Sustainable Chem. Eng.

125

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“…Previously performed studies were described in several review papers [19,56]. Moreover, the examples of the conducted investigations are presented in Table 5 [57][58][59][60][61][62][63][64][65][66][67].…”

Section: Novel Chromatographic Methods Of Bio-oil Analysismentioning

confidence: 99%

Chromatographic analysis of bio-oil formed in fast pyrolysis of lignocellulosic biomass

Grams

2020

Reviews in Analytical Chemistry

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Fast pyrolysis of lignocellulosic biomass is one of the most promising methods of the production of renewable fuels. However, an optimization of the conditions of bio-oil production is not possible without comprehensive analysis of the composition of formed products. There are several methods for the determination of distribution of products formed during thermal decomposition of biomass with chromatography being the most versatile among them. Although, due to the complex structure of bio-oil (presence of hundreds chemical compounds with different chemical character), an interpretation of the obtained chromatograms is not an easy task. Therefore, the aim of this work is to present an application of different chromatographic methods to the analysis of the composition of the mixture of products formed in high temperature decomposition of lignocellulosic feedstock. It includes pyrolysis-gas chromatography/mass spectrometry (Py-GC/MS), two dimensional gas (GC x GC) or liquid chromatography (LC x LC) and initial fractionation of bio-oil components. Moreover, the problems connected with the analysis of bio-oils formed with the use of various fast pyrolysis reactors and capabilities of multivariate analysis are discussed.

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“…Compound identification by gas chromatography hyphenated with mass spectrometry (GC-MS) and quantification using gas chromatography and flame ionization detection (GC-FID) are commonly carried out [5]. Thanks to its high resolution power, GC and overall GCxGC make a valuable contribution to the detailed characterization of complex matrices such as bio-oils.…”

Section: Introductionmentioning

confidence: 99%

Ultra-high performance supercritical fluid chromatography hyphenated to atmospheric pressure chemical ionization high resolution mass spectrometry for the characterization of fast pyrolysis bio-oils

Crépier

Masle

Charon

et al. 2018

Journal of Chromatography B

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Extensive characterization of complex mixtures requires the combination of powerful analytical techniques. A Supercritical Fluid Chromatography (SFC) method was previously developed, for the specific case of fast pyrolysis bio oils, as an alternative to gas chromatography (GC and GC × GC) or liquid chromatography (LC and LC × LC), both separation methods being generally used prior to mass spectrometry (MS) for the characterization of such complex matrices. In this study we investigated the potential of SFC hyphenated to high resolution mass spectrometry (SFC-HRMS) for this characterization using Negative ion Atmospheric Pressure Chemical ionization ((-)APCI) for the ionization source. The interface between SFC and (-)APCI/HRMS was optimized from a mix of model compounds with the objective of maximizing the signal to noise ratio. The main studied parameters included both make-up flow-rate and make-up composition. A methodology for the treatment of APCI/HRMS data is proposed. This latter allowed for the identification of molecular formulae. Both SFC-APCI/HRMS method and data processing method were applied to a mixture of 36 model compounds, first analyzed alone and then spiked in a bio-oil. In both cases, 19 compounds could be detected. Among them 9 could be detected in a fast pyrolysis bio-oil by targeted analysis. The whole procedure was applied to the characterization of a bio-oil using helpful representations such as mass-plots, van Krevelen diagrams and heteroatom class distributions. Finally the results were compared with those obtained with a Fourier Transform ion-cyclotron resonance mass spectrometer (FT-ICR/MS).

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Multi-technique characterization of fast pyrolysis oils

Cited by 54 publications

References 30 publications

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

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

Chromatographic analysis of bio-oil formed in fast pyrolysis of lignocellulosic biomass

Ultra-high performance supercritical fluid chromatography hyphenated to atmospheric pressure chemical ionization high resolution mass spectrometry for the characterization of fast pyrolysis bio-oils

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Multi-technique characterization of fast pyrolysis oils

Cited by 54 publications

References 30 publications

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

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

Chromatographic analysis of bio-oil formed in fast pyrolysis of lignocellulosic biomass

Ultra-high performance supercritical fluid chromatography hyphenated to atmospheric pressure chemical ionization high resolution mass spectrometry for the characterization of fast pyrolysis bio-oils

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Product

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

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