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Analytical pyrolysis (Py–GC/MS) of corn stover, bean pod, sugarcane bagasse, and pineapple crown leaves for biorefining

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Abstract

Pyrolysis of lignocellulosic biomass is a renewable way to obtain densified energy and increase the raw material value in three different products: biochar, bio-oil, and gas. Agricultural waste is a promising biomass due to its high availability, especially in tropical countries, and lack of destination besides combustion. The bioenergy and biorefining potential were evaluated for four agricultural wastes: corn stover (CS), bean pods (BP), sugarcane bagasse (SCB), and pineapple crowns leaves (PCL) through an extensive physical and chemical characterization by proximate, ultimate and compositional analysis, high heating value (HHV), ash chemical composition, thermogravimetric analysis and analytical pyrolysis through Py–GC/MS. The results show that the biomasses present high HHV (16.1–19.3 MJ kg−1), low moisture and ash content, and high volatile content (77.8–82.8%), which are great characteristics for bio-oil production. According to Py–GC/MS results, the main pyrolysis products were phenols, furans, and C1–C4 oxygenated compounds. CS and BP presented a high phenolics yield (26.5%), which could be potentially recovered through biorefining. PCL showed the greatest energetic potential due to its highest HHV and could generate a high-quality fuel after deoxygenation routes. The bio-oil of these biomasses is a potential source of value-added chemicals after biorefining routes.

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Fig. 1

Adapted from Silva et al. (2019)

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Acknowledgements

The authors appreciate the financial support from CNPq/Brazil and Capes/Brazil (process 88882.375742/2019-1) for this research. We would also like to thank LABTAM/UFRN, LNA/UFRN, and Escola Agrícola de Jundiaí/UFRN for the infrastructure provided.

Funding

This work was supported by Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)/Brazil and Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)/Brazil (process 88882.375742/2019–1). We would also like to thank LABTAM/UFRN, LNA/UFRN, Petrobras and Escola Agrícola de Jundiaí/UFRN for the facilities.

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All authors contributed to the study conception and design. Material preparation, data collection and analysis were performed by Guilherme Quintela Calixto and Renata Martins Braga. The first draft of the manuscript was written by Guilherme Quintela Calixto and all authors commented on previous versions of the manuscript. All authors read and approved the final manuscript.

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Correspondence to Guilherme Q. Calixto.

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The authors declare that they have no conflict of interest.

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Calixto, G.Q., Melo, D.M.A., Melo, M.A.F. et al. Analytical pyrolysis (Py–GC/MS) of corn stover, bean pod, sugarcane bagasse, and pineapple crown leaves for biorefining. Braz. J. Chem. Eng. 39, 137–146 (2022). https://doi.org/10.1007/s43153-021-00099-1

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  • DOI: https://doi.org/10.1007/s43153-021-00099-1

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