Authors : Marinda Rahim; Kusyanto

Volume/Issue : Volume 8 - 2023, Issue 12 - December

Google Scholar : https://tinyurl.com/nrjmazs2

Scribd : https://tinyurl.com/mwcsutrp

DOI : https://doi.org/10.5281/zenodo.10301872

Abstract : About 50% of used lubricant oil turned out to be hazardous waste that can adversely impact health and the environment. One method for processing this waste is by cracking the hydrocarbon chain into liquid fuel fractions such as kerosene which can be done using a microwave-assisted pyrolysis process and activated carbon as a microwave absorber. The research have developed to optimize the temperature, microwave power, and material ratio variables of used lubricant oil pyrolysis process that assisted by microwave and absorbent from lignite to produce a high kerosene fraction. The pyrolysis process was carried out by mixing used lubricant oil and lignite absorbent, then pyrolyzing for 3 hours. The experimental design was made with the Box-Behnken model where the temperature level was set at 400 C, 450 C, and 500 C, the power level was set at 400 Watt, 600 Watt, and 800 Watt, and the ratio level at 1:1, 1:1.3, 1:1.5 (w/w). The characteristics of the product obtained were tested by measuring the density parameter (15 C) while the kerosene fraction was calculated by plotting the density data on the density curve versus the kerosene fraction. The optimization results obtained by data processing using the design expert application were the temperature of 400 °C, the power of 734,394 Watts, the ratio of 1,306 w/w with desirability value of 0.848 so that the prediction result for the kerosene fraction obtained was 97.503%.

Keywords : Kerosene; Lignite; Microwave; Pyrolysis; used Lubricant Oil.