A simple procedure for chromatographic analysis of bio-oils from pyrolysis

Undri, Andrea; Abou-Zaid, Mamdouh M.; Briens, Cédric; Berruti, Franco; Rosi, Luca; Bartoli, Mattia; Frediani, Marco; Frediani, Piero

doi:10.1016/j.jaap.2015.05.019

Cited by 49 publications

(54 citation statements)

References 62 publications

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“…4, the primary components which represented by the strong peaks were 5-methyl-2-furancarboxaldehyde, 2-methoxyphenol, 4-ethylphenol, 4-ethyl-2-methoxyphenol, 2, 6-dimethoxyphenol, respectively. It was found that the primary products in water-soluble oil were phenols [32,36,37]. The highest relative content of phenolic compounds was up to 89.21% at 260 °C and the lowest was 50.91% at 350 °C after the detection and calculation.…”

Section: Effect Of Temperaturementioning

confidence: 99%

Conversion and extracting bio-oils from rod-shaped cornstalk by sub-critical water

Gao

Liu

Du³

et al. 2015

Journal of Analytical and Applied Pyrolysis

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Section: Effect Of Temperaturementioning

confidence: 99%

Conversion and extracting bio-oils from rod-shaped cornstalk by sub-critical water

Gao

Liu

Du³

et al. 2015

Journal of Analytical and Applied Pyrolysis

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“…5) due to the release of volatile organic matter during pyrolysis. In the early stages of the thermal degradation of the CNCs, pyrolysis of the sphere surface took place simultaneously with the release of the high-boiling compounds (levoglucosan, glucose dimers and trimers [55]) from the inner particle cores. After reaching the surface, these compounds started to boil and to decompose at the same time.…”

Section: Fesem Analysis Of Carbonized Cncsmentioning

confidence: 99%

Shape tunability of carbonized cellulose nanocrystals

et al. 2019

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Bioderived scaffolds are largely used as template for the synthesis of drugs and materials. Among biomass sources, cellulose has been used as platform for numerous conversions and applications. In this study, we report the use of crystalline microstructured cellulose as feedstock for microstructured carbon production. Different morphologies were produced according to pyrolytic conditions ranging from sphere, needle and carbon-on-carbon-decorated surfaces. All the materials were characterized using spectroscopic techniques (i.e., Raman, FTIR), FESEM and thermogravimetric analysis. Hypothetical reaction pathways were proposed for describing materials shape and properties. In particular, for cellulose nanocrystals, the thermal treatments induced noteworthy electrical properties that could be applied for the production of conductive composites.

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“…Both chromatographic and spectroscopic methods need to be applied and interpreted complementary for a complete characterization. Conventional (HPLC), (GC), (GPC), (FTIR), and (NMR) have been applied for the elucidation of the bio‐oils’ composition to different extents, and a summation of the developments and results in that area is covered by resent comprehensive reviews . However, considerable advancements in comprehending their synthesis have occurred by the application of advanced analytical techniques such as hyphenated chromatographic and advanced spectroscopic techniques that will be the focus of the current review.…”

Section: Introductionmentioning

confidence: 99%

Advanced analytical techniques for bio‐oil characterization

Michailof

Kalogiannis

Sfetsas

et al. 2016

WIREs Energy & Environment

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Bio-oil (pyrolysis oil) is the liquid product of biomass thermochemical conversion. It is a dark, viscous liquid that contains the depolymerization products of hemicellulose, cellulose, and lignin. The physicochemical properties of bio-oils are determined by employing the conventional methods for fuels analysis with proper adaptations. However, the detailed composition of bio-oils in terms of analytes as well as their concentration remains ambiguous and is a challenging task for analytical chemistry. The compounds in the bio-oil range from nonpolar (e.g., hydrocarbons) to highly polar (e.g., phenolics) and from volatile (e.g., organic acids) to nonvolatile (e.g., sugar derivatives), covering a molecular weight (MW) range of about 50-2000 Da. Hence a combination of analytical techniques such as high pressure liquid chromatography, gas chromatography (GC), gel permeation chromatography (GPC), nuclear magnetic resonance spectroscopy (NMR), and Fourier transform infrared spectroscopy (FTIR) are required to determine the bio-oil's composition. Despite the significant breakthroughs of these techniques, they face limitations regarding the sample pretreatment, the incomplete separation and determination of components, and the need of multiple analyses with each method for more complete results. The development of sophisticated, comprehensive, and hyphenated chromatographic and spectrometric techniques such as GC × GC, LC × LC, high-resolution mass spectrometry (HRMS), and 2D-NMR has brought actual advancement in the field of bio-oil analysis. GC × GC and LC × LC have allowed the development of qualitative and quantitative methods for the individual determination of lower MW compounds. However, HRMS and 2D-NMR have facilitated the elucidation of the structure of the higher MW components, offering insight in the effect of pyrolysis conditions on biomass depolymerization and the possibilities for further upgrading of bio-oils.

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A simple procedure for chromatographic analysis of bio-oils from pyrolysis

Cited by 49 publications

References 62 publications

Conversion and extracting bio-oils from rod-shaped cornstalk by sub-critical water

Conversion and extracting bio-oils from rod-shaped cornstalk by sub-critical water

Shape tunability of carbonized cellulose nanocrystals

Advanced analytical techniques for bio‐oil characterization

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