Low temperature pyrolysis of waste cooking oil using marble waste for bio-jet fuel production

Rustam Tamim, Didik Prasetyoko, Stella Jovita, Yatim Lailun Ni'mah, Reva Edra Nugraha, Holilah Holilah, Hasliza Bahruji, Rahimi Yusop, Nurul Asikin-Mijan, Aishah Abdul Jalil, Hartati Hartati and Didi Dwi Anggoro

Renewable Energy, 2024, vol. 232, issue C

Abstract: Limestone powder, a by-product of top-down marble processing, exhibited high thermal stability and functionality as catalysts for the low-temperature pyrolysis of waste cooking oil (WCO) into biofuel. The marble waste (MW) contains calcite, dolomite, and quartz composites (CaCO3/MgCO3/SiO2) as non-uniform microcrystallites. Pyrolysis at 380 °C in 1 h increased the hydrocarbon composition of biofuel and reduced carboxylic acid. The biofuel composition contains 80 % hydrocarbon within the jet fuel C8-16 ranges. MW reduced the carboxylic acid concentration from 49 % in catalyst-free pyrolysis to less than 4 %. The optimum condition was obtained at 3 % MW, yielding 43.55 % linear hydrocarbon, 11.1 % cyclic hydrocarbon, and 1.02 % aromatic compounds that satisfied the bio-jet fuel classification. The incorporation of varying percentages of marble waste demonstrates a significant enhancement in the cyclic compounds, elevating the yield from ∼3 % in catalyst-free pyrolysis to an impressive ∼35 %. The hydrocarbon yield is higher when using 3%MW > 1%MW > 6%MW > 9%MW. Dolomite and calcite mixture in MW catalyzed triglyceride conversion to hydrocarbon by adsorbing carbonate in triglycerides to drive C–O bond dissociation. These studies provide a roadmap for the utilization of abundant resources locally available in Indonesia to sustain local energy demand.

Keywords: Marble waste; Waste cooking oil; Deoxygenation; Biofuel; Bio-jet fuel (search for similar items in EconPapers)
Date: 2024
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Persistent link: https://EconPapers.repec.org/RePEc:eee:renene:v:232:y:2024:i:c:s0960148124012035

DOI: 10.1016/j.renene.2024.121135

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