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All Journal Jurnal Teknik Kimia dan Lingkungan
Windi Zamrudy
Department of Chemical Engineering, Politeknik Negeri Malang, Jl. Soekarno Hatta No. 9, Malang 65141, Indonesia
Chemical Engineering, Chemistry & Bioengineering Chemistry Energy Engineering Materials Science & Nanotechnology

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The Influence of Plastic Waste Types and Ratios on the Characteristics of Alternative Fuels through the Pyrolysis Method Mochammad Agung Indra Iswara; Eko Naryono; Mufid Mufid; Anang Takwanto; Luchis Rubianto; Windi Zamrudy
Jurnal Teknik Kimia dan Lingkungan Vol. 10 No. 2 (2026): October 2026
Publisher : Politeknik Negeri Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33795/jtkl.v10i2.9249

Abstract

The increasing volume of plastic waste highlights the urgent need for efficient and environmentally sustainable treatment methods. Pyrolysis is recognized as a promising thermochemical process for converting plastic waste into alternative liquid fuels. This study evaluates the use of rice husks, corn cobs, and coconut shells as renewable heat sources in the pyrolysis of polypropylene (PP) and polyethylene terephthalate (PET), applying biomass-to-plastic ratios of 1:8, 1:12, and 1:16. Key parameters assessed include reactor temperature, liquid fuel yield, and fuel properties. The results show that coconut shells produced the highest reactor temperatures and the most optimal yields, reaching 11.95% for PP and 2.74% for PET. PP-derived oil demonstrated the best fuel quality, with a calorific value of 12,038.9 cal/g, density of 0.728 g/cm3, and viscosity of 2.33 cSt, corresponding to the gasoline-kerosene fraction. In contrast, PET-derived oil exhibited a calorific value of 11,348.1 cal/g, density of 0.809 g/cm3, and viscosity of 3.47 cSt, aligning with the kerosene-diesel fraction. These findings confirm the potential of integrating biomass combustion with plastic pyrolysis as a viable pathway for producing alternative liquid fuels while promoting the utilization of agricultural residues as renewable energy sources.
Co-Authors Anang Takwanto Eko Naryono Luchis Rubianto Mochammad Agung Indra Iswara Mufid Mufid