Publication: Biogasoline production from co-pyrolysis of fresh palm fruit bunches and medical plastic waste for use in spark-ignition engines
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Issued Date
2025-11-01
Resource Type
ISSN
01652370
Scopus ID
2-s2.0-105013517365
Journal Title
Journal of Analytical and Applied Pyrolysis
Volume
192
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SCOPUS
Bibliographic Citation
Journal of Analytical and Applied Pyrolysis Vol.192 (2025)
Suggested Citation
Unsomsri N., Chunyok K., Pakdee W., Muncharoenporn P., Koedthong P., Tawkaew S., Wiriyasart S., Kaewluan S. Biogasoline production from co-pyrolysis of fresh palm fruit bunches and medical plastic waste for use in spark-ignition engines. Journal of Analytical and Applied Pyrolysis Vol.192 (2025). doi:10.1016/j.jaap.2025.107332 Retrieved from: https://hdl.handle.net/20.500.14740/50350
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Abstract
This work examines the co-pyrolysis of fresh palm fruit bunches (FFB) together with used medical saline bottles (UMSB) as an environmentally sustainable approach for biogasoline production. Three FFB:UMSB feed ratios (100:0, 75:25, and 50:50) were evaluated in a batch pyrolyzer at 450 °C to assess bio-oil yield, product distribution, and fuel quality. The bio-oil obtained was separated via fractional distillation into biogasoline and diesel-range fractions. GC–MS and FTIR analyses indicated that higher UMSB proportions increased light hydrocarbon levels while decreasing oxygen-containing compounds. The 50:50 blend achieved the highest biogasoline yield (87.7 %) with favorable properties including higher heating value (42.6 MJ/kg), low viscosity (0.88 cSt), and reduced acidity (pH 3.6). Engine tests using a 2 kW spark-ignition generator showed stable combustion, extended runtime (19.6 hr), and comparable electrical efficiency (16.8 %) to commercial gasoline (15.4 %). Emission measurements indicated significant reductions in CO (64 %) and NO<inf>x</inf> (7.1 %) for the 50:50 blend. A simplified economic analysis showed cost competitiveness, with a production cost of 0.1 EUR/L and a profit margin of 0.8 EUR/L. The findings highlight co-pyrolysis as a promising circular-economy approach for converting palm biomass and plastic waste into value-added products via decentralized energy generation.