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Ultrasonication aided in-situ transestserification of microbial lipids to biodiesel.

Zhang, Xiaolei; Yan, Song; Tyagi, Rajeshwar Dayal; Surampalli, Rao Y.; Valéro, José R. (2014). Ultrasonication aided in-situ transestserification of microbial lipids to biodiesel. Bioresource Technology , vol. 169 . p. 175-180. DOI: 10.1016/j.biortech.2014.06.108.

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Résumé

In-situ transesterification of microbial lipid to biodiesel has been paid substantial attention due to the fact that the lipid extraction and transesterification can be conducted in one stage process. To improve the feasibility of in-situ transesterification, ultrasonication was employed to reduce methanol requirement and reaction time. The results showed that the use of ultrasonication could achieve high conversion of lipid to FAMEs (92.1% w lipid conversion/w total lipids) with methanol to lipid molar ratio 60:1 and NaOH addition 1% w/w lipid in 20 min, while methanol to lipid molar ratio 360:1, NaOH addition 1% w/w lipid, and reaction time 12 h was required to obtain similar yield in in-situ transesterification without ultrasonication. The compositions of FAMEs obtained in case of ultrasonication aided in-situ transesterification were similar as that of two-stage extraction followed by transesterification processes.

Type de document: Article
Mots-clés libres: microbial lipid; In-situ transesterification; ultrasonication; biodiesel
Centre: Centre Eau Terre Environnement
Date de dépôt: 11 avr. 2018 18:50
Dernière modification: 17 avr. 2018 17:29
URI: http://espace.inrs.ca/id/eprint/3701

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