An investigation into the pyrolysis and oxidation of bio-oil from sugarcane bagasse: Kinetics and evolved gases using TGA-FTIR

Javier Ordonez-Loza, Farid Chejne, Abdul Gani Abdul Jameel, Selvedin Telalovic, Andrés Amell Arrieta, Mani Sarathy

Research output: Contribution to journalArticlepeer-review

40 Scopus citations

Abstract

Bio-oil produced from the pyrolysis of sugarcane bagasse has the potential to be used as a sustainable and renewable energy source. In the present study, a non-isothermal thermo-gravimetric analysis (TGA) of the pyrolysis (in N2 atmosphere) and combustion (in the air) of bio-oil from sugarcane bagasse was investigated at three heating rates: 5, 10, and 20 °C/min. The sample was heated from room temperature up to 900 °C and the evolved gases in the TG furnace were carried to a Fourier transform infrared (FTIR) cell where the composition of the gases and the functional groups present there were analyzed. A global kinetic analysis was performed to obtain the Arrhenius kinetic parameters for the pyrolysis and oxidation of the bio-oil using the distributed activation energy model. Three distinct stages, namely; low-temperature oxidation (LTO), fuel decomposition (FD), and high-temperature oxidation (HTO) were observed during the oxidation of bio-oil. The initial devolatilization of the oxygenated compounds observed during pyrolysis was similar to the LTO stage observed during combustion. The intensity of the CO2 FTIR peaks seen during the bio-oil combustion was 10 times the intensity of the CO2 peaks attained during pyrolysis. The TGA-FTIR analysis of the sugarcane bagasse bio-oil sheds new light on its thermal degradation/oxidation characteristics.
Original languageEnglish (US)
Pages (from-to)106144
JournalJournal of Environmental Chemical Engineering
Volume9
Issue number5
DOIs
StatePublished - Jul 31 2021

Bibliographical note

KAUST Repository Item: Exported on 2021-08-31
Acknowledgements: The authors wish to thank the Colciencias-Doctorados Nacionales 757–2016 fellowship and the project “Strategy of transformation of the Colombian energy sector in the horizon 2030” funded by call 788 of the Colciencias Scientific Ecosystem. Contract number FP44842-210-2018. This work was performed at King Abdullah University of Science and Technology (KAUST) Clean Combustion Research Center (CCRC) with funding from the KAUST Center Applied Research Fund (CARF). This research used resources of the KAUST Catalysis Center (KCC).

ASJC Scopus subject areas

  • Waste Management and Disposal
  • Pollution
  • Process Chemistry and Technology
  • Chemical Engineering (miscellaneous)

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