Py-GC/MS analysis on product distribution of two-staged biomass pyrolysis

Cai, Wenwen; Liu, Qian; Shen, Dekui; Wang, Jingzhen

doi:10.1016/j.jaap.2018.12.007

Cited by 45 publications

(34 citation statements)

References 26 publications

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“…The water content and oxygen content of bio-oil derived from torrefied material were reduced and the carbon content was increased [182]. The oil also contained significantly higher amounts of levoglucosan and phenolic compounds, and lower acid yields [183]. These changes were due to the removal of water during torrefaction, the decomposition of hemicelluloses and the increase in the relative amount of lignin in the torrefied biomass [182].…”

Section: Nature Of Volatiles and Condensatesmentioning

confidence: 99%

Co-pyrolysis of coal and raw/torrefied biomass: A review on chemistry, kinetics and implementation

Gouws

Carrier

Bunt

et al. 2021

Renewable and Sustainable Energy Reviews

123

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Thermochemical conversion via co-pyrolysis has the potential to be an efficient route for converting biomass to bio-energy and bio-refinery products. In this review, the implementation of co-pyrolysis of torrefied biomass and coal was critically assessed against co-pyrolysis of raw biomass and coal from both a fundamental and engineering perspective. This evaluation showed fundamental advantages for torrefaction of biomass prior to copyrolysis such as a decrease in mass and heat transfer limitations due to an increase in permeability and thermal conductivity of biomass. Co-pyrolysis volatiles may also be upgraded through the catalytic activity of the torrefied biomass surface, producing higher quality oil. Due to properties more similar to coal, torrefied biomass requires less energy for milling (lower operating costs) and can be more easily blended with coal in reactor feeding systems. A state-of-the-art research on co-pyrolysis kinetics revealed that reactivities of blends may be predicted from kinetic parameters of individual feedstocks using an additive approach. To conclude on the preferred reactor design for this process, different reactors were evaluated based on heat transfer mode, operation and product formation. Although both the fluidized bed and rotating cone reactor provide high oil yields, the rotating cone has been more successful commercially. This design shows great promise for specifically copyrolysis due to the intimate contact that may be achieved between fuels to maximize synergy. The copyrolysis of torrefied biomass and coal may be encouraged from a scientific point of view, however further research is recommended on the effective integration of torrefaction and co-pyrolysis technologies.

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Section: Nature Of Volatiles and Condensatesmentioning

confidence: 99%

Co-pyrolysis of coal and raw/torrefied biomass: A review on chemistry, kinetics and implementation

Gouws

Carrier

Bunt

et al. 2021

Renewable and Sustainable Energy Reviews

123

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“…These results strongly agree with literature data concerning several woody biomass. If these chemical families always constitute the main VOC components, their own proportions depend both on the nature of the sample and on the pyrolysis operating conditions [54,55,[60][61][62].…”

Section: Resultsmentioning

confidence: 99%

Analysis through gas chromatography of the products obtained from slow pyrolysis applied to Russian feedstock

Maryandyshev

Kangash

Trouvé³

et al. 2021

J Therm Anal Calorim

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Slow pyrolysis experiments were performed at 500 °C on Russian feedstock (hydrolysis lignin, peat, mixed sewage sludge, and pine and spruce woods, for comparison). The pyrolysis products were analyzed through gas chromatography, and more than 130 components were identified and grouped according to their chemical family. A qualitative analysis of the pyrolysis products showed that the highest amount of molecules (more than 40%) released during the pyrolysis of hydrolysis lignin belongs to the phenol chemical family. They result from the lignin degradation. The peat pyrolysis led to a large amount (more than 50%) of sugars. The molecules detected during the pyrolysis of the mixed sewage sludge are similar to that of the spruce sample and almost the same as that of the pine sample, because the selected sewage sludge is a mixture of municipal and industrial waste from pulp and paper industry. Comparisons between the data obtained for these Russian feedstock and that of the literature concerning quite similar materials exhibit differences which may be the consequence of the feedstock and of the experimental conditions.

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“…Next, we will increase the temperature to 120 °C at the rate of 5 °C/min. Finally, we increased the temperature to 200 °C at a rate of 10 °C/min for 2 minutes [14][15][16].…”

Section: The Py-gc-ms Analysismentioning

confidence: 99%

Extract of Albizia kalkora leaves

et al. 2020

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In this paper, a mixture of methanol, ethanol, benzene and ethanol were used to extract the leaves of Albizia kalkora (Roxb.) Prain. Then, using Fourier transform infrared (FT-IR) spectroscopy, gas chromatography-mass spectrometry (GC-MS), pyrolysis as chromatography-mass spectrometry, and thermogravimetric analysis (TGA) and other advanced instruments Albizia kalkoraleaves were analyzed to determine their composition. According to the test data, Albizia kalkoraleaves contain epinephrine, trans squalene, stachydrine and other chemical components with high medicinal value, indicating that Albizia kalkoraleaves have potential applications in the pharmaceutical industry. This study has expanded the utilization value of Albizia kalkoratrees and provided technical support for the resource utilization of Albizia kalkoratrees.

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Py-GC/MS analysis on product distribution of two-staged biomass pyrolysis

Cited by 45 publications

References 26 publications

Co-pyrolysis of coal and raw/torrefied biomass: A review on chemistry, kinetics and implementation

Co-pyrolysis of coal and raw/torrefied biomass: A review on chemistry, kinetics and implementation

Analysis through gas chromatography of the products obtained from slow pyrolysis applied to Russian feedstock

Extract of Albizia kalkora leaves

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