Py-GC/MS and pyrolysis studies of eucalyptus, mentha, and palmarosa biomass

Kaur, Ramandeep; Kumar, Avnish; Biswas, Bijoy; Rout, Prasanta Kumar; Bhaskar, Thallada

doi:10.1007/s13399-022-02729-1

Cited by 8 publications

(2 citation statements)

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“…Biomass pyrolysis is related to the depolymerization of basic biochemical structures, generating monomers that can later be transformed into species representative of all organic functions based on decarboxylation, cyclization, and rearrangement reactions (Kaur et al., 2022). Considering this dynamic, analytical pyrolysis has been essential in studying chemical compounds' production from biomass's thermal decomposition (Kumar et al., 2021).…”

Section: Resultsmentioning

confidence: 99%

“…Furans and ketones' low production in the bio‐oil of the composted samples is related to the low concentrations of cellulose and hemicellulose in these materials (Zhang et al., 2023). Non‐composted materials had low lignin concentrations (9.5%–11.4%), which generated small areas of peaks corresponding to phenolic compounds (2%–5% at 450°C and 6%–11% at 550°C) once lignin was the primary precursor of these compounds (Kaur et al., 2022). On the other hand, composted biomasses did not follow the same behavior as other biomass, with even lower phenolic areas (0%–1% at 450°C and 2%–4% at 550°C), despite the high lignin concentration (28%–35%).…”

Section: Discussionmentioning

confidence: 99%

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Upgrade of bio‐oil produced from the sisal residue composting

Cunha,

Lima,

Pires

2024

GCB Bioenergy

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The present work studies the composting effects on the chemical characteristics of bio‐oil produced by pyrolysis of sisal residue. Three systems were composted with sisal residue proportions to sisal fiber powder of 100:0, 90:10, and 75:25, respectively. The systems showed reductions of 33%–48% (extractive), 70%–80% (hemicellulose), and 80%–90% (cellulose) after composting. An increase in lignin content was observed in all systems. The pyrolysis of the composted systems was performed at 450°C and 550°C. At both temperatures, this process was selective in producing a large concentration of hydrocarbons (>160% increase), mainly alkanes and alkenes, reducing the concentrations of ketones, aldehydes, and phenolics (>50%) and eliminating esters, furans, and acetic acid to composted biomasses. The higher temperature favored aromatics and cyclic hydrocarbon production from the pyrolysis of composted samples. In addition to these results, composting helped reduce the oxygenated bio‐oil species by approximately 44%–75% at the lowest and ~69% at the highest temperatures. These results indicate that composted sisal residue can produce bio‐oils that are more suitable for biorefineries since they are rich in aliphatic hydrocarbons and non‐oxygenated species.

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Section: Resultsmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%