Taguchi Method and Grey Relational Analysis to Improve in Situ Production of FAME from Sunflower and Jatropha curcas Kernelswith Subcritical Solvent Mixture

Sutanto, Sylviana and Go, Alchris Woo and Ismadji, Suryadi and Yi-Hsu, Ju (2015) Taguchi Method and Grey Relational Analysis to Improve in Situ Production of FAME from Sunflower and Jatropha curcas Kernelswith Subcritical Solvent Mixture. Journal of the American Oil Chemists' Society, 92 (10). pp. 1513-1523. ISSN 0003-021X

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Official URL: https://link.springer.com/journal/11746

Abstract

This study investigates the possibility of employing in situ (trans)esterification (ISTE) under the subcritical condition (200–250 °C) of the solvent mixture (methanol + acetic acid) with a high solid loading and a low solvent to solid ratio (SSR). The Taguchi method together with grey relational analysis was used to improve both FAME yield and productivity. It was found that temperature reaction time and SSR were factors which contributed the most in obtaining high FAME yields. In addition to the above-mentioned factors the addition of acetic acid also significantly improved the productivity. Employing the following conditions: 250 °C; 8.8 MPa; 3–7 mL/g SSR; 10 % acetic acid was found to provide an improved FAME yield and productivity. A confirmatory test resulted in a FAME yield of 87.5–92.7 % for sunflower kernels and 88.2–97.22 % for Jatropha curcas L. kernels and productivity up to 37.5 kg/m 3 /h can be obtained with good repeatability. Furthermore, the process developed in this study can tolerate moisture and a free fatty acid content of up to 25 %. The direct application of the method using whole kernels was also investigated.

Item Type: Article
Uncontrolled Keywords: Biodiesel·Jatropha curcas·Subcritical methanol· Subcritical acetic acid· Sunflower oil·(trans)Esterification
Subjects: Engineering > Chemical Engineering
Divisions: Faculty of Engineering > Chemical Engineering Study Program
Depositing User: Suryadi. Ismadji
Date Deposited: 24 May 2017 08:32
Last Modified: 19 Jul 2018 08:44
URI: http://repository.wima.ac.id/id/eprint/10705

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