Parametric study on methanolysis of refined coconut oil using potassium hydroxide-impregnated calcium oxide from eggshells as catalyst and tetrahydrofuran as co-solvent

Date

6-2016

Degree

Bachelor of Science in Chemical Engineering

College

College of Engineering and Agro-Industrial Technology (CEAT)

Adviser/Committee Chair

Manolito E. Bambase, Jr.

Abstract

This parametric study was conducted to determine the effects of the presence of tetrahydrofuran (THF), amount of catalyst, and methanolysis temperature on the %fatty acid methyl ester (FAME) purity and %FAME yield. It was done using a 2^k full factorial design of experiments with center points wherein the amount of catalyst was tested for values 5wt% and 10wt% and temperature of 30°C and 60°C. The calcium oxide (CaO) catalyst was derived from calcination of eggshells at 900°C for 4 hours. It was impregnated with potassium hydroxide (KOH) via wet impregnation. The KOH-impregnated CaO was characterized using X-Ray Diffraction and Fourier Transform Infrared Spectoscropy. From the total of 20 runs conducted at constant 6:1 methanol to oil molar ratio and 1-hour reaction time based on the design of experiment, the highest average FAME yield obtained was 28.90% with 100% FAME purity. Analysis of the data at 95% confidence level through ANOVA showed that the temperature, presence of THF, amount of catalyst and interaction of presence of THF and amount of catalyst have significant effect on %FAME purity, all with positive effects. Only temperature and amount of catalyst, both with positive effects, have significant effect on % FAME yield. Lastly, only %FAME purity has been determined to have a significant curvature.

Language

English

Location

UPLB College of Engineering and Agro-Industrial Technology (CEAT)

Call Number

LG 993.5 2016 E62 /L56

Document Type

Thesis

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