Thermal Pyrolysis of Used Lubricant and Cooking Oil Mixtures

Nazarudin Nazarudin (Chemical Engineering Department, Faculty of Sain and Technology, Universitas Jambi, Jambi Department of Agriculture Product Technology, Faculty of Agriculture, University of Jambi Centre of Excellent in Bio-Geo Material, University of Jambi)
S.P. Amalia (Chemsitry Education Department, FKIP, Universitas Jambi, Jambi)
Afrida Afrida (Chemsitry Education Department, FKIP, Universitas Jambi, Jambi)
Ulyarti Ulyarti (Department of Agriculture Product Technology, Faculty of Agriculture, University of Jambi Centre of Excellent in Bio-Geo Material, University of Jambi)

Jurnal Penelitian Pendidikan IPA (JPPIPA)
Vol. 7 No. 2 (2021): April

Pyrolysis is the one solution to recycle hydrocarbon-based waste material such as used lubricant and cooking oil. The aim of this research was to determine the effect of temperature and sample ratio on the liquid yields of a mixture of used lubricant and cooking oil. The semi batch reactor was used with a constant nitrogen flow rate of 5 mL/min. Three different ratios of sample mixture were applied in this experiment: 0.5:1, 1:1, and 1.5:1, and three different temperatures: 4000C, 4500C, and 5000C. The thermal pyrolysis of a mixture of used lubricant and cooking oil was deemed as the most effective pyrolysis to produce liquid fraction was obtained from reaction condition with the sample mixture ratio of 0.5:1 at 5000C. At this reaction condition, the liquid yield was 58.90% which consist of 64.12% were C1-C3 and 29.54% were C5-C15.  Liquid fraction is predicted to increase as the temperature increase and the ratio of used lubricant to cooking oil decrease. When the ratio is increased , more gas fraction is produced.