STATISTICAL ANALYSIS OF BIODIESEL FUEL PRODUCTION AND ENVIRONMENTAL RECYCLING PROCESS FROM WASTE COOKING OIL

Abstract

Biodiesel as a fuel has become more preferred due to its environmental benefits and the fact that it is made from renewable resources. Waste coking oil (WCO) is the residue oil generated during food or semi-product preparation by frying and cooking. It is tremendous in the houses and restaurants, so the technical disposal of it becomes necessary. In this study, WCO containing low free fatty acids (FFA) was used as raw material for methyl ester (biodiesel) production. As a result of transesterification, the optimum conditions for methyl ester production can be determined by changing the basic parameters (factors) affecting product yield. This scope of study, the effects of catalyst amount, reaction temperature and molar ratio of alcohol to oil (molar ratio) parameters on the yield of waste cooking oil methyl ester (WCOME) was determined. For this purpose, experiments were carried out at reaction temperatures of 40 degrees C, 50 degrees C and 60 degrees C; 0.5, 1, and 1.5% catalyst amount at 4:1, 6:1, 8:1, and 10:1 molar ratios using KOH catalyst. ANOVA (Analysis of variance) was used for optimizing the parameters used in methyl ester production. After ANOVA, Tukey HSD multiple comparison test was used as a more realistic awareness resource for the determination of optimal production parameters and levels.