Statistical Optimization of Biodiesel Synthesis from Waste Cooking Oil Using Bentonite Clay as Catalyst

Résumé

Abstract Biodiesel was synthesized from waste cooking oil (WCO) utilizing a transesterification process with clay as a heterogeneous catalyst. The transesterification was carried out for 4 hours at reaction temperatures of 60°C using 4 wt.% catalyst and 9:1 (methanol to oil) ratio. Continuous stirring at 60°C for 4 hours and a 9:1 methanol/oil molar ratio with 4wt.% catalyst resulted in a high yield of FAMEs (91.2%). The impact of several reaction factors on biodiesel yield were explored. For the optimization of five process parameters, this study uses regression models constructed using central composite design (CCD) of randomized response surface methodology (RSM) to forecast FAME production for the transesterification of waste cooking oil (WCO). The influence of methanol to oil molar ratio, catalyst weight, temperature, and reaction time was investigated in 32 trials. The estimated coefficient of determination (R), corrected R, and coefficient of variance were determined to be 0.9956 percent, 0.9877 percent, and 663.15 percent, respectively, at a molar ratio of 9:1, catalyst concentration of 4 wt.%, and a reaction duration of 4 hrs. 3D plots were used to determine the effects of the combination of these elements. The response surface methodology (RSM) was shown to be an effective statistical technique for developing an acceptable empirical model for linking operational parameters and forecasting optimal operating conditions. The statistical analyses and the closeness of the experimental results to model predictions demonstrate the regression model's dependability, and the findings will aid in the selection of an efficient and cost-effective biodiesel production technique from low-cost raw materials with high free fatty acid. Furthermore, according to international biodiesel specifications, the fuel characteristics of the created biodiesel were within acceptable levels.

Citer ce document

Accès au document

Ce document est hébergé sur son dépôt institutionnel d'origine.

Auteur(s)

Statistiques

Consultations : 1

Téléchargements : 0