Study of the pectin influence on bio-oil produced from sisal residue pyrolysis

Araujo, Leonardo M.; Santos, Mariana Andrade; Brandão, Soraia Teixeira; Lima, Sirlene Barbosa; Pires, C. A. M.

doi:10.1016/j.jaap.2023.105906

Cited by 2 publications

(1 citation statement)

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“…Most of the waste is discarded in the field as garbage, harming the environment due to the production of greenhouse gases (Broeren et al, 2017). However, several studies are being carried out to use sisal residues as biogas (Soares et al, 2023), pharmaceutical inputs (hecogenin, inulin, and others) (Apolinário et al, 2017), construction material (Kaushik et al, 2023), bio-oil, and various chemical products (Araujo et al, 2023) These alternative processes for the use of waste will play a fundamental role in the stability of the crop in the producing regions, and they will contribute to the maintenance of man in the countryside.…”

Section: Introductionmentioning

confidence: 99%

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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