PRODUKSI BASE OIL DARI OLI PELUMAS BEKAS DENGAN METODE EKTRAKSI MENGGUNKAN PELARUT 1- BUTANOL

Abstract

Used oil is one of the B3 wastes (hazardous and toxic materials) produced from mining activities, especially in East Kalimantan Province, which is the largest coal producer in Indonesia. B3 waste requires special treatment because it can pollute the environment if it is thrown away directly without any prior processing. In this research, the ratio of used oil: to solvent in the process of refining base oil from used oil was studied using the 1-butanol dissolution method with the aim of determining its effect on the viscosity and viscosity index of base oil so that it is possible to reuse it for making recycled oil. The variations used in this research were a dissolution ratio from 1:1 to 1:5 and a stirring speed of 500 rpm. Viscosity testing at a temperature of 100◦C and viscosity index were carried out to determine the characteristics of the base oil obtained. The research results show that the best base oil viscosity and viscosity index are obtained when using a 2:1 ratio (solvent to used oil) with a viscosity index of 116.74 cSt, which meets the minimum marketed base oil viscosity index standard, namely (110 - 130) cSt, and the yield obtained was 72%. Keywords: Base oil, Extraction, 1-Butanol, Used Engine Oil.