Study on the Staged and Direct Fast Pyrolysis Behavior of Waste Pine Sawdust Using High Heating Rate TG-FTIR and Py-GC/MS

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dc.contributor.authorZhang, Jinhong
dc.contributor.authorSekyere, Daniel T.
dc.contributor.authorNiwamanya, Noah
dc.contributor.authorBarigye, Andrew
dc.contributor.authorTia, Yuanyu
dc.date.accessioned2023-02-09T14:51:58Z
dc.date.available2023-02-09T14:51:58Z
dc.date.issued2022
dc.description.abstractTo understand the fast pyrolysis kinetics and product evolution of waste pine sawdust, high heating rate thermogravimetry-Fourier transform infrared (TG-FTIR) was used to obtain the kinetic parameters and the chemical groups formed during the pyrolysis process, while pyrolysis-gas chromatography/mass spectrometry (Py-GC/MS) was used to investigate the detailed compositions of products under the staged (seven stages from 300 to 600 °C) and direct fast pyrolysis process. Spectral bands were identified for acids, alcohols, aldehydes, aromatics, esters, ethers, hydrocarbons, ketones, phenols, and sugars. Research found that the apparent activation energy for fast pyrolysis is much higher than that of slow pyrolysis. The evolution of CO2 is the major deoxygenation route. Cracking mainly occurred at the 450 °C stage with phenols, ketones, aldehydes, and sugars as the main products. The product distributions for different stages are significantly different; the selectivity of aldehydes decreased, while phenols showed an upward trend with an increase in pyrolysis temperature. Ketones and sugars reached their peak values at 450 °C. The changes in the molecular composition of each stage helped to understand the pyrolysis process. Compared with the staged pyrolysis, the direct pyrolysis process had higher selectivity of acids, aldehydes, esters, and sugars and lower selectivity of phenols, ketones, and alcohols.en_US
dc.identifier.citationZhang, J., Sekyere, D. T., Niwamanya, N., Huang, Y., Barigye, A., & Tian, Y. (2022). Study on the staged and direct fast pyrolysis behavior of waste pine sawdust using high heating rate TG-FTIR and Py-GC/MS. ACS omega, 7(5), 4245-4256.https://doi.org/10.1021/acsomega.1c05907en_US
dc.identifier.urihttps://nru.uncst.go.ug/handle/123456789/7685
dc.language.isoenen_US
dc.publisherACS omegaen_US
dc.subjectTG-FTIRen_US
dc.subjectPy-GC/MSen_US
dc.subjectPyrolysisen_US
dc.subjectPine Sawdusten_US
dc.titleStudy on the Staged and Direct Fast Pyrolysis Behavior of Waste Pine Sawdust Using High Heating Rate TG-FTIR and Py-GC/MSen_US
dc.typeArticleen_US
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