Produksi Bio-oil dari Co-pyrolysis Pelepah Kelapa Sawit dan Plastik Polyethylene Terephthalate Menggunakan Katalis Fly Ash Batu Bara

Nadya Cahaya Putri; Suci Rahmadini; Nurfatihayati Nurfatihayati; Sunarno Sunarno; Panca Setia Utama; Anisa Mutamima

doi:10.32734/jtk.v15i2.26026

Authors

Nadya Cahaya Putri Universitas Riau
Suci Rahmadini Universitas Riau
Nurfatihayati Nurfatihayati Universitas Riau
Sunarno Sunarno Universitas Riau
Panca Setia Utama Universitas Riau
Anisa Mutamima Universitas Riau; RMIT University, Australia

DOI:

https://doi.org/10.32734/jtk.v15i2.26026

Keywords:

bio-oil, co-pyrolysis, fly ash, oil palm frond, PET

Abstract

This study investigates bio-oil production via the co-pyrolysis of oil palm fronds (OPF) and polyethylene terephthalate (PET) plastics using a coal fly ash catalyst. The process was conducted in a fixed-bed reactor at 350°C for 60 minutes. Results showed that an optimum OPF to PET ratio of 75:25 yielded 20.48% bio-oil. The addition of 10% fly ash maximized the yield to 27.04%, whereas a 15% catalyst concentration triggered over-cracking reactions, thereby decreasing the yield. Conversely, the highest heating value of 31.46 MJ/kg (meeting the ASTM D7544-12 standard) was achieved at the 15% catalyst concentration. This highlights a trade-off between the optimum conditions for bio-oil quantity (10% catalyst) and quality (15% catalyst). GC-MS analysis confirmed the dominance of phenolic compounds, furans, and carboxylic acids, affirming the potential of this mixture as a renewable energy alternative.

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