In situ biodiesel production from wet Chlorella vulgaris under subcritical condition

Tsigie, Yeshitila Asteraye and Lien, Huong Huynh and Ismadji, Suryadi and Engida, Adam Mekonnen and Yi-Hsu, Ju (2012) In situ biodiesel production from wet Chlorella vulgaris under subcritical condition. Chemical Engineering Journal, 213. pp. 104-108. ISSN 1385-8947

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Official URL: http://www.sciencedirect.com/science/article/pii/S...

Abstract

The conventional base catalyzed biodiesel production process uses refined vegetable oil as feedstock oil and is not environmentally friendly. The supercritical methanol technology does not require the use of catalyst but it is energy intensive due to the high temperature and pressure required in the process. In this work, a process was developed for producing biodiesel directly from wet Chlorella vulgaris biomass (80% moisture content) using subcritical water as catalyst. Under the following conditions: The ratio of wet biomass to methanol is 1/4 (g/mL), the reaction temperature is 175° C and after 4 h, the reaction product contained 89.71% fatty acid methyl esters (FAMEs). The yield is 0.29 g FAME per g dry biomass. This is considerably higher than the yield of 0.20 g FAME per g dry biomass obtained when the neutral lipid of C. vulgaris biomass was extracted and converted into FAME.

Item Type: Article
Uncontrolled Keywords: Biodiesel, FAME, Subcritical water, Chlorella vulgaris
Subjects: Engineering > Chemical Engineering
Divisions: Journal Publication
Depositing User: Suryadi. Ismadji
Date Deposited: 29 May 2017 02:58
Last Modified: 19 Jul 2018 06:45
URI: http://repository.wima.ac.id/id/eprint/10764

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