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Ramli Thahir
Politeknik Negeri Samarinda
Agriculture, Biological Sciences & Forestry Humanities Automotive Engineering Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Engineering Environmental Science Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Library & Information Science Mathematics Mechanical Engineering Physics Social Sciences Other

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Effect of HCl-Activated Natural Zeolite Catalyst Loading on Liquid Fuel Production from Waste Engine Oil Pyrolysis Noversi Allolayuk; Alwatan Sofian; Marcopolo Ginting; Sirajuddin Sirajuddin; Muhammad Irwan; Harjanto Harjanto; Ramli Thahir; Abdul Muis; Muhammad Taufik; Abdul Halim
Eksergi Vol. 22 No. 03 (2026): SEPTEMBER 2026
Publisher : Politeknik Negeri Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32497/eksergi.v22i03.7673

Abstract

The continuous increase in motor vehicle usage has led to a corresponding rise in lubricant oil consumption, resulting in a greater volume of used lubricating oil waste. Various treatment methods can be applied to process used lubricating oil waste, one of which is pyrolysis to convert the waste into liquid fuel. This study was conducted to determine the effect of activated natural zeolite as a catalyst in the conversion of used lubricating oil into liquid fuel. The used lubricating oil was subjected to pyrolysis for 120 minutes at a temperature of 350°C, using a feed volume of 500 mL. Catalyst weight variations of 0 g, 21.5 g, 43 g, 64.5 g, and 86 g were applied. The catalyst consisted of natural zeolite crushed and sieved to 100 mesh particle size. Prior to use, the zeolite was activated using 3 M HCl. The resulting liquid fuel products were evaluated in terms of yield percentage (%Yield), API gravity (°API), density, viscosity, and GC–MS analysis. The pyrolysis process produced 287 mL, 332 mL, 387 mL, 441 mL, and 415 mL of liquid fuel, respectively. The maximum fuel yield was obtained with a catalyst weight of 64.5 g, producing 441 mL of liquid fuel with a yield of 88.2%, a density of 812.2 kg/m³, a viscosity of 2.48 cSt, and an API gravity of 42.56°. The API gravity value indicates that the liquid fuel product can be classified as kerosene.
Co-Authors A.A. Ketut Agung Cahyawan W Abda Abda Abdul Halim Abdul Muis Abdul Rahman Abdul Rahman Alam, Ahmad Noor Alwatan Sofian Alwathan Andari Awalia ANDRI KURNIAWAN Aprilia, Nursyam Arief Adhiksana Ayu, Sekar Dyah Kusrihandayani Emy Agustina Fadilah, Muhammad Reza Halim, Abd Harjanto Harjanto Harjanto HARJANTO HARJANTO Imam Cahyo Wicaksono Irwan, Muh. Kusuma, Imam Fatwa Linthin, Agnesia Pulung Marcopolo Ginting Marlinda Marlinda Mohd-Setapar, Siti Hamidah Muamar Muh Irwan, Muh Muh. Irwan MUhammad Taufik Mustafa Mustafa Mustafa Nadir, Mardhiyah Noversi Allolayuk Okko, Sarifudin Puspasari, Febriyati Rahayu, Ibnu Eka Samosir, Damianus Sirajuddin Sirajuddin Sirajuddin Sirajuddin Syahrir Jalil Toyo, Rahmat Budi Wahyudi Wahyudi Wahyudi, Wahyudi