Bibliographic citations
Vásquez, S., (2024). Transformación de biomasa lignocelulósica municipal mediante conversión termoquímica para obtención de fracciones sólidas de carbones en la ciudad de Chiclayo [Universidad Nacional de Trujillo]. https://hdl.handle.net/20.500.14414/22236
Vásquez, S., Transformación de biomasa lignocelulósica municipal mediante conversión termoquímica para obtención de fracciones sólidas de carbones en la ciudad de Chiclayo []. PE: Universidad Nacional de Trujillo; 2024. https://hdl.handle.net/20.500.14414/22236
@phdthesis{renati/1048594,
title = "Transformación de biomasa lignocelulósica municipal mediante conversión termoquímica para obtención de fracciones sólidas de carbones en la ciudad de Chiclayo",
author = "Vásquez Llanos, Segundo Alberto",
publisher = "Universidad Nacional de Trujillo",
year = "2024"
}
In the present study, pruned branches of Ficus benjamina (Fb) were used to obtain solid carbon fractions through the carbonization process, carried out in an electric muffle at temperatures of 400, 500 and 600 °C for 2 hours. The physicochemical and energetic properties, mass and energy yield, and textural properties of the solid coal fractions were evaluated. With increasing carbonization temperature, the contents of volatile matter decreased significantly (p ˂ 0.05) from 26.58 to 17.04 %, hydrogen from 2.71 to 1.76 % and oxygen from 19.27 to 15.14 %, the H/C ratio from 0.49 to 0.31, the O/C ratio from 0.22 to 0.17, the mass yield from 34.32 to 28.59 %, the energy yield from 51.60 to 39.96 % and the superior heating value from 26.07 to 24.23 MJ/kg. However, with increasing temperature, the ash content increased from 10.49 to 13.41 %, fixed carbon from 62.93 to 69.55 %, carbon from 66.71 to 68.93 %, pH from 8.64 to 10.49, and electrical conductivity from 1.48 to 3.21 dS/m, the BET surface area from 3.49 to 26.04 m2/g and the total pore volume from 0.0018 to 0.013 cm3/g, while the concentration of polycyclic aromatic hydrocarbons (PAH) did not follow a proportional trend with temperature. The total concentration of PAH varied in the range of 160.17 to 23.40 μg/kg. The carbonization temperature of 400 to 600 °C made various changes in the physicochemical, energetic, and textural properties of the branches of the Fb tree. The solid fractions of the coals produced from the Fb branches showed a more aromatic and less hydrophilic surface with low BET surface areas, with a high calorific value in the range of bituminous, sub-bituminous coal and charcoal, and low total concentration of PAHs, which do not represent toxicity when incorporated into the soil. Therefore, the solid fractions produced have the potential to be used as solid fuel, soil remediator, and carbon sequestration agent, specifically the coal obtained at a temperature of 500 °C has the potential to be used as an energy, agronomic, and environmental source. In general, the solid fractions of carbons produced from Fb branches at the carbonization temperature of 400, 500 and 600 °C meet the requirements established by IBI and EBC.
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