Characterization of NaOH-catalyzed transesterification of coconut oil with methanol using 2-propanol as cosolvent

Date

6-2015

Degree

Bachelor of Science in Chemical Engineering

College

College of Engineering and Agro-Industrial Technology (CEAT)

Adviser/Committee Chair

Manolito E. Bambase

Restrictions

Restricted: Not available to the general public. Access is available only after consultation with author/thesis adviser and only to those bound by the confidentiality agreement.

Abstract

The NaOH-catalyzed Transesterification of coconut oil with methanol using 2-propanol as cosolvent was characterized using parametric analysis and response surface methodology (RSM). The effect of different operating conditions such as methanol:2-propanol:oil molar ratio and NaOH concentration (wt/wt) to the composition of the transesterified oil produced was investigated. All runs were conducted at normal room temperature and 1150 rpm mixing. The composition of the transesterified oil was analyzed using Thin Layer Chromatography (TLC). For the parametric analysis, the Analysis of Variance (ANOVA) was used to evaluate the effect of the parameters. At 99% confidence, the varying methanol:2-propanol:oil molar ratio had significant effect to fatty acid alkyl ester (FAAE) component of the transesterified oil. At 5% confidence, the varying NaOH concentration (wt/wt) had no significant effect. The most desirable operating condition based from the parametric analysis was 5:2:0.10:1 methanol:2-propanol:NaOH:oil molar ratio. To account the effect of the interaction of the two parameters, the design of experiment (DOE) used was Full Two-level Factorial and RSM. The effect of the parameters was presented by a linear regression model: FAAE = 19.4015 + 14.7088X2-propanol + 45.5201XNaOH - 11.5670X2-propanolXNaOH. The optimized condition based on the equation was 3:4:0.20:1 methanol:2-propanol:NaOH:oil molar ratio. The difference between the two optimized conditions can be accounted to the DOE used.

Language

English

Location

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

Call Number

LG 993.5 2015 E62 /P63

Document Type

Thesis

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