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Suci Rahmadini
Universitas Riau
Chemical Engineering, Chemistry & Bioengineering Chemistry Engineering Environmental Science Industrial & Manufacturing Engineering Materials Science & Nanotechnology

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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
Jurnal Teknik Kimia USU Vol. 15 No. 2 (2026): Jurnal Teknik Kimia USU
Publisher : Talenta Publisher (Universitas Sumatera Utara)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32734/jtk.v15i2.26026

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.
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
Jurnal Teknik Kimia USU Vol. 15 No. 2 (2026): Jurnal Teknik Kimia USU
Publisher : Talenta Publisher (Universitas Sumatera Utara)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32734/jtk.v15i2.26026

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.
Co-Authors Anisa Mutamima Nadya Cahaya Putri Nurfatihayati Panca Setia Utama Sunarno Sunarno