The effects of pottasium concentration on the percentage yield of fatty acid methyl ester from waste cooking oil / Muhammad Fauwaz Mohamad Saroji

Biodiesel (FAME) is a lot of oxygenated than conventional mineral diesel, burning more efficiently in the engine, thus outcome in less emission of hydrocarbons, carbon dioxide, and particulates. Waste cooking oil was trans esterified with methanol in the presence of the heterogeneous base catalyst potassium (K), using carbonized OPF as the catalytic support. The main objective was to determine the effects of potassium concentration on the percentage of fatty acid methyl ester yield from waste cooking oil. The KOH solution was doped with OPF and calcined the mixture at 500 °C, for 4 hours and cold to room temperature for making it a heterogeneous catalyst. To generate FAME during the trans-esterification process, WCO is required to be heated at a higher temperature to eliminate the water content. It was also crucial to have the right ratio of methanol to oil and catalyst to oil. The yield % of FAME was determined using FAME analysis using GCMS. The transesterification of WCO produced the best result of FAME production using 2.0M of concentration of KOH in catalyst with constant weight percent at 10wt%. The concentration at 2.0M produced the best and higher FAME production. This gives positive effects toward the production of FAME in a higher ratio of catalyst and higher concentration used for catalyst.