Characterization of Synthetic Oil Produced from Medical Mask Waste by Pyrolysis Using a Silicon Dioxide (SiO₂) Catalyst

Abdul  Azis; Dwi Yudha Meydiansyah; Herman  Saputro; Ngatou  Rohman; Aris  Purwanto; Riyadi  Muslim

doi:10.70716/reswara.v4i4.671

Authors

Abdul Azis Master’s Program in Mechanical Engineering Education, Yogyakarta State University, Yogyakarta, Indonesia Author
Dwi Yudha Meydiansyah Master’s Program in Mechanical Engineering Education, Yogyakarta State University, Yogyakarta, Indonesia Author
Herman Saputro Mechanical Engineering Education, Sebelas Maret University, Surakarta, Indonesia Author
Ngatou Rohman Mechanical Engineering Education, Sebelas Maret University, Surakarta, Indonesia Author
Aris Purwanto Mechanical Engineering, Surabaya State University, Surabaya, Indonesia Author
Riyadi Muslim Manufacturing Engineering Technology, Vocational School, Sebelas Maret University, Surakarta, Indonesia Author

DOI:

https://doi.org/10.70716/reswara.v4i4.671

Keywords:

synthetic-oil, pyrolysis, medical mask, silicone dioxide, alternative fuel

Abstract

The increasing demand for fossil fuels, particularly petroleum, has contributed to the depletion of fossil energy reserves and highlights the need for alternative energy sources. One potential alternative is synthetic oil produced from waste materials, including used medical masks. This study aims to evaluate the effect of pyrolysis temperature and SiO₂ concentration on the characteristics of synthetic oil produced from medical mask waste based on liquid yield, calorific value, density, and flash point. An experimental method with quantitative analysis was employed. Pyrolysis was conducted at temperatures of 200 °C and 300 °C using three SiO₂ concentration variations: 0% (100% medical mask waste), 1% SiO₂ + 99% medical mask waste, and 2% SiO₂ + 98% medical mask waste. The produced synthetic oil was filtered and characterized based on liquid yield, calorific value, density, and flash point. The results showed that the highest liquid yield was obtained at 300 °C with 2% SiO₂ addition, reaching 55.666%. The highest calorific value was obtained at 200 °C with 2% SiO₂ addition, reaching 9674.54 cal/g. The lowest density value of 0.76205 g/cm³ was obtained at 300 °C with 1% SiO₂ addition, while the highest flash point value of 152.5 °C was obtained at 300 °C without SiO₂ addition. These results indicate that pyrolysis temperature and SiO₂ concentration influence the yield and physicochemical properties of synthetic oil derived from medical mask waste.

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